Merge branch 'integration_2020_wk37' into 'develop'

Develop integration 2020 week 37

The following Merge Requests have been included:

* MR [878] : CI framework update for 5G NSA FR1 setup
* MR [885] : PTRS-based UL phase compensation

.gitignore

@@ -12,3 +12,9 @@ targets/bin/
 
 # vscode
 .vscode
+
+# Tags for vim/global
+GPATH
+GRTAGS
+GTAGS
+tags

ci-scripts/args_parse.py

@@ -34,7 +34,7 @@
 import sys		# arg
 import re		# reg
 import yaml
-
+import constants as CONST
 
 #-----------------------------------------------------------
 # Parsing Command Line Arguements

ci-scripts/cls_cots_ue.py

@@ -27,61 +27,111 @@
 #     pexpect
 #---------------------------------------------------------------------
 
+#to use isfile
+import os
+import sys
 #to use logging.info()
 import logging
 #to create a SSH object locally in the methods
 import sshconnection
 #time.sleep
 import time
+#to load cots_ue dictionary
+import yaml
 
 class CotsUe:
-	def __init__(self,model,UEIPAddr,UEUserName,UEPassWord):
-		self.model = model
-		self.UEIPAddr = UEIPAddr 
-		self.UEUserName = UEUserName
-		self.UEPassWord = UEPassWord
-		self.runargs = '' #on of off to toggle airplane mode on/off
+	def __init__(self,ADBIPAddr,ADBUserName,ADBPassWord):
+		self.cots_id = '' #cots id from yaml oppo, s10 etc...
+		self.ADBIPAddr = ADBIPAddr 
+		self.ADBUserName = ADBUserName
+		self.ADBPassWord = ADBPassWord
+		self.cots_run_mode = '' #on of off to toggle airplane mode on/off
+		self.__cots_cde_dict_file = 'cots_ue_ctl.yaml'
 		self.__SetAirplaneRetry = 3
 
+
 #-----------------$
 #PUBLIC Methods$
 #-----------------$
 
 	def Check_Airplane(self):
 		mySSH = sshconnection.SSHConnection()
-		mySSH.open(self.UEIPAddr, self.UEUserName, self.UEPassWord)
-		status=mySSH.cde_check_value('sudo adb shell settings get global airplane_mode_on ', ['0','1'],5)
+		mySSH.open(self.ADBIPAddr, self.ADBUserName, self.ADBPassWord)
+		status=mySSH.cde_check_value('adb shell settings get global airplane_mode_on ', ['0','1'],5)
 		mySSH.close()
 		return status
 
+	#simply check if the device id exists in the dictionary
+	#returns true if it exists, false otherwise
+	def Check_Exists(self,target_id):
+		#load cots commands dictionary
+		if (os.path.isfile(self.__cots_cde_dict_file)):
+			yaml_file=self.__cots_cde_dict_file
+		elif (os.path.isfile('ci-scripts/'+self.__cots_cde_dict_file)):
+			yaml_file='ci-scripts/'+self.__cots_cde_dict_file
+		else:
+			logging.error("COTS UE dictionary yaml file cannot be found")
+			sys.exit("COTS UE dictionary yaml file cannot be found")
+		
+		#load cots commands dictionary
+		with open(yaml_file,'r') as file:
+			cots_ue_ctl = yaml.load(file,Loader=yaml.FullLoader)
+		#check if ue id is in the dictionary
+		if target_id in cots_ue_ctl:
+			return True
+		else:
+			return False
+
+	def Set_Airplane(self, target_id, target_state_str):
+		#loading cots commands dictionary
 
-	def Set_Airplane(self,target_state_str):
-		mySSH = sshconnection.SSHConnection()
-		mySSH.open(self.UEIPAddr, self.UEUserName, self.UEPassWord)
-		mySSH.command('sudo adb start-server','$',5)
-		logging.info("Toggling COTS UE Airplane mode to : "+target_state_str)
-		current_state = self.Check_Airplane()
-		if target_state_str.lower()=="on": 
-			target_state=1
+		if (os.path.isfile(self.__cots_cde_dict_file)):
+			yaml_file=self.__cots_cde_dict_file
+		elif (os.path.isfile('ci-scripts/'+self.__cots_cde_dict_file)):
+			yaml_file='ci-scripts/'+self.__cots_cde_dict_file
 		else:
-			target_state=0
-		if current_state != target_state:
-			#toggle state
-			retry = 0 
-			while (current_state!=target_state) and (retry < self.__SetAirplaneRetry):
-				mySSH.command('sudo adb shell am start -a android.settings.AIRPLANE_MODE_SETTINGS', '\$', 5)
-				mySSH.command('sudo adb shell input keyevent 20', '\$', 5)
-				mySSH.command('sudo adb shell input tap 968 324', '\$', 5)
-				time.sleep(1)
-				current_state = self.Check_Airplane()
-				retry+=1
+			logging.error("COTS UE dictionary yaml file cannot be found")
+			sys.exit("COTS UE dictionary yaml file cannot be found")
+		
+		#load cots commands dictionary
+		with open(yaml_file,'r') as file:
+			cots_ue_ctl = yaml.load(file,Loader=yaml.FullLoader)
+		#check if ue id is in the dictionary
+		if target_id in cots_ue_ctl:
+			mySSH = sshconnection.SSHConnection()
+			mySSH.open(self.ADBIPAddr, self.ADBUserName, self.ADBPassWord)
+			logging.info(str(self.ADBIPAddr)+' '+str(self.ADBUserName)+' '+str(self.ADBPassWord))
+			mySSH.command('adb start-server','\$',5)
+			mySSH.command('adb devices','\$',5)
+			logging.info("Toggling COTS UE Airplane mode to : "+target_state_str)
+			#get current state
+			current_state = self.Check_Airplane()
+			if target_state_str.lower()=="on": 
+				target_state=1
+			else:
+				target_state=0
 			if current_state != target_state:
-				logging.error("ATTENTION : Could not toggle to : "+target_state_str)
-				logging.error("Current state is : "+ str(current_state))
+				#toggle state
+				retry = 0 
+				while (current_state!=target_state) and (retry < self.__SetAirplaneRetry):
+					#loop over the command list from dictionary for the selected ue, to switch to required state
+					for i in range (0,len(cots_ue_ctl[target_id])):
+						mySSH.command(cots_ue_ctl[target_id][i], '\$', 5)
+					time.sleep(1)
+					current_state = self.Check_Airplane()
+					retry+=1
+				#could not toggle despite the retry
+				if current_state != target_state:
+					logging.error("ATTENTION : Could not toggle to : "+target_state_str)
+					logging.error("Current state is : "+ str(current_state))
+			else:
+				logging.info("Airplane mode is already "+ target_state_str)
+			mySSH.command('adb kill-server','\$',5)
+			mySSH.close()
+		#ue id is NOT in the dictionary
 		else:
-			print("Airplane mode is already "+ target_state_str)
-		mySSH.command('sudo adb kill-server','$',5)
-		mySSH.close()
+			logging.error("COTS UE Id from XML could not be found in UE YAML dictionary " + self.__cots_cde_dict_file)
+			sys.exit("COTS UE Id from XML could not be found in UE YAML dictionary " + self.__cots_cde_dict_file)
 
 
 

ci-scripts/cots_ue_ctl.yaml

+9d690a12: #oppo
+  - adb shell input keyevent KEYCODE_POWER
+  - adb shell input swipe 300 700 300 0
+  - adb shell am start -a android.settings.AIRPLANE_MODE_SETTINGS
+  - adb shell input keyevent 20
+  - adb shell input tap 968 324
+002: #s10
+  - adb shell input keyevent KEYCODE_POWER
+  - adb shell input swipe 200 900 200 300
+  - adb shell am start -a android.settings.AIRPLANE_MODE_SETTINGS
+  - adb shell input tap 968 324
+003: #s20
+  - adb shell input keyevent KEYCODE_POWER
+  - adb shell input swipe 200 900 200 300
+  - adb shell am start -a android.settings.AIRPLANE_MODE_SETTINGS
+  - adb shell input tap 968 324
+004: #xperia
+  - tbd
+  - tbd
+  - tbd

ci-scripts/main.py

@@ -285,21 +285,29 @@ class OaiCiTest():
 				SSH.command('ssh ' + self.UEDevicesRemoteUser[idx] + '@' + self.UEDevicesRemoteServer[idx] + ' ' + self.UEDevicesOffCmd[idx], '\$', 60)
 				SSH.close()
 				return
-			# enable data service
-			SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell "svc data enable"', '\$', 60)
-
-			# The following commands are deprecated since we no longer work on Android 7+
-			# SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell settings put global airplane_mode_on 1', '\$', 10)
-			# SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell am broadcast -a android.intent.action.AIRPLANE_MODE --ez state true', '\$', 60)
-			# a dedicated script has to be installed inside the UE
-			# airplane mode on means call /data/local/tmp/off
-			if device_id == '84B7N16418004022':
-				SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell "su - root -c /data/local/tmp/off"', '\$', 60)
+
+			#RH quick add-on to integrate cots control defined by yaml
+			#if device_id exists in yaml dictionary, we execute the new procedure defined in cots_ue class
+			#otherwise we use the legacy procedure
+			if COTS_UE.Check_Exists(device_id):
+				#switch device to Airplane mode ON (ie Radio OFF) 
+				COTS_UE.Set_Airplane(device_id, 'ON')
 			else:
-				SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell /data/local/tmp/off', '\$', 60)
-			#airplane mode off means call /data/local/tmp/on
-			logging.debug('\u001B[1mUE (' + device_id + ') Initialize Completed\u001B[0m')
-			SSH.close()
+				# enable data service
+				SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell "svc data enable"', '\$', 60)
+
+				# The following commands are deprecated since we no longer work on Android 7+
+				# SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell settings put global airplane_mode_on 1', '\$', 10)
+				# SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell am broadcast -a android.intent.action.AIRPLANE_MODE --ez state true', '\$', 60)
+				# a dedicated script has to be installed inside the UE
+				# airplane mode on means call /data/local/tmp/off
+				if device_id == '84B7N16418004022':
+					SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell "su - root -c /data/local/tmp/off"', '\$', 60)
+				else:
+					SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell /data/local/tmp/off', '\$', 60)
+				#airplane mode off means call /data/local/tmp/on
+				logging.debug('\u001B[1mUE (' + device_id + ') Initialize Completed\u001B[0m')
+				SSH.close()
 		except:
 			os.kill(os.getppid(),signal.SIGUSR1)
 
@@ -790,7 +798,13 @@ class OaiCiTest():
 		try:
 			SSH.open(self.ADBIPAddress, self.ADBUserName, self.ADBPassword)
 			if self.ADBCentralized:
-				if device_id == '84B7N16418004022':
+				#RH quick add on to integrate cots control defined by yaml
+				#if device Id exists in yaml dictionary, we execute the new procedure defined in cots_ue class
+				#otherwise we use the legacy procedure 
+				if COTS_UE.Check_Exists(device_id):
+					#switch device to Airplane mode OFF (ie Radio ON)
+					COTS_UE.Set_Airplane(device_id, 'OFF')
+				elif device_id == '84B7N16418004022':
 					SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell "su - root -c /data/local/tmp/on"', '\$', 60)
 				else:
 					SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell /data/local/tmp/on', '\$', 60)
@@ -827,7 +841,13 @@ class OaiCiTest():
 				if count == 15 or count == 30:
 					logging.debug('\u001B[1;30;43m Retry UE (' + device_id + ') Flight Mode Off \u001B[0m')
 					if self.ADBCentralized:
-						if device_id == '84B7N16418004022':
+					#RH quick add on to intgrate cots control defined by yaml
+					#if device id exists in yaml dictionary, we execute the new procedure defined in cots_ue class
+					#otherwise we use the legacy procedure
+						if COTS_UE.Check_Exists(device_id):
+							#switch device to Airplane mode ON  (ie Radio OFF)
+							COTS_UE.Set_Airplane(device_id, 'ON')
+						elif device_id == '84B7N16418004022':
 							SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell "su - root -c /data/local/tmp/off"', '\$', 60)
 						else:
 							SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell /data/local/tmp/off', '\$', 60)
@@ -835,7 +855,13 @@ class OaiCiTest():
 						SSH.command('ssh ' + self.UEDevicesRemoteUser[idx] + '@' + self.UEDevicesRemoteServer[idx] + ' ' + self.UEDevicesOffCmd[idx], '\$', 60)
 					time.sleep(0.5)
 					if self.ADBCentralized:
-						if device_id == '84B7N16418004022':
+					#RH quick add on to integrate cots control defined by yaml
+					#if device id exists in yaml dictionary, we execute the new procedre defined incots_ue class
+					#otherwise we use the legacy procedure
+						if COTS_UE.Check_Exists(device_id):
+							#switch device to Airplane mode OFF (ie Radio ON)
+							COTS_UE.Set_Airplane(device_id, 'OFF')
+						elif device_id == '84B7N16418004022':
 							SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell "su - root -c /data/local/tmp/on"', '\$', 60)
 						else:
 							SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell /data/local/tmp/on', '\$', 60)
@@ -918,7 +944,13 @@ class OaiCiTest():
 		try:
 			SSH.open(self.ADBIPAddress, self.ADBUserName, self.ADBPassword)
 			if self.ADBCentralized:
-				if device_id == '84B7N16418004022':
+				#RH quick add on to  integrate cots control defined by yaml
+				#if device id exists in yaml dictionary, we execute the new procedure defined in cots_ue class
+				#otherwise we use the legacy procedure
+				if COTS_UE.Check_Exists(device_id):
+					#switch device to Airplane mode ON (ie Radio OFF)
+					COTS_UE.Set_Airplane(device_id,'ON')
+				elif device_id == '84B7N16418004022':
 					SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell "su - root -c /data/local/tmp/off"', '\$', 60)
 				else:
 					SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell /data/local/tmp/off', '\$', 60)
@@ -2697,7 +2729,13 @@ class OaiCiTest():
 			SSH.open(self.ADBIPAddress, self.ADBUserName, self.ADBPassword)
 			# back in airplane mode on (ie radio off)
 			if self.ADBCentralized:
-				if device_id == '84B7N16418004022':
+				#RH quick add on to intgrate cots control defined by yaml
+				#if device Id exists in yaml dictionary, we execute the new procedure defined in cots_ue class
+				#otherwise we use the legacy procedure 
+				if COTS_UE.Check_Exists(device_id):
+					#switch device to Airplane mode ON (ie Radio OFF)
+					COTS_UE.Set_Airplane(device_id, 'ON')
+				elif device_id == '84B7N16418004022':
 					SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell "su - root -c /data/local/tmp/off"', '\$', 60)
 				else:
 					SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell /data/local/tmp/off', '\$', 60)
@@ -3133,7 +3171,7 @@ def GetParametersFromXML(action):
 			else:
 				RAN.backgroundBuild=False
 
-	if action == 'WaitEndBuild_eNB':
+	elif action == 'WaitEndBuild_eNB':
 		RAN.Build_eNB_args=test.findtext('Build_eNB_args')
 		eNB_instance=test.findtext('eNB_instance')
 		if (eNB_instance is None):
@@ -3144,7 +3182,7 @@ def GetParametersFromXML(action):
 		if (RAN.eNB_serverId is None):
 			RAN.eNB_serverId='0'
 
-	if action == 'Initialize_eNB':
+	elif action == 'Initialize_eNB':
 		RAN.Initialize_eNB_args=test.findtext('Initialize_eNB_args')
 		eNB_instance=test.findtext('eNB_instance')
 		if (eNB_instance is None):
@@ -3164,7 +3202,7 @@ def GetParametersFromXML(action):
 		else :
 			RAN.air_interface[RAN.eNB_instance] = 'ocp-enb'
 
-	if action == 'Terminate_eNB':
+	elif action == 'Terminate_eNB':
 		eNB_instance=test.findtext('eNB_instance')
 		if (eNB_instance is None):
 			RAN.eNB_instance=0
@@ -3183,21 +3221,21 @@ def GetParametersFromXML(action):
 		else :
 			RAN.air_interface[RAN.eNB_instance] = 'ocp-enb'
 
-	if action == 'Attach_UE':
+	elif action == 'Attach_UE':
 		nbMaxUEtoAttach = test.findtext('nbMaxUEtoAttach')
 		if (nbMaxUEtoAttach is None):
 			CiTestObj.nbMaxUEtoAttach = -1
 		else:
 			CiTestObj.nbMaxUEtoAttach = int(nbMaxUEtoAttach)
 
-	if action == 'CheckStatusUE':
+	elif action == 'CheckStatusUE':
 		expectedNBUE = test.findtext('expectedNbOfConnectedUEs')
 		if (expectedNBUE is None):
 			CiTestObj.expectedNbOfConnectedUEs = -1
 		else:
 			CiTestObj.expectedNbOfConnectedUEs = int(expectedNBUE)
 
-	if action == 'Build_OAI_UE':
+	elif action == 'Build_OAI_UE':
 		CiTestObj.Build_OAI_UE_args = test.findtext('Build_OAI_UE_args')
 		CiTestObj.clean_repository = test.findtext('clean_repository')
 		if (CiTestObj.clean_repository == 'false'):
@@ -3205,7 +3243,7 @@ def GetParametersFromXML(action):
 		else:
 			CiTestObj.clean_repository = True
 
-	if action == 'Initialize_OAI_UE':
+	elif action == 'Initialize_OAI_UE':
 		CiTestObj.Initialize_OAI_UE_args = test.findtext('Initialize_OAI_UE_args')
 		UE_instance = test.findtext('UE_instance')
 		if (UE_instance is None):
@@ -3223,7 +3261,7 @@ def GetParametersFromXML(action):
 			#CiTestObj.air_interface = 'ocp-enb'
 			logging.error('OCP UE -- NOT SUPPORTED')
 
-	if action == 'Terminate_OAI_UE':
+	elif action == 'Terminate_OAI_UE':
 		UE_instance=test.findtext('UE_instance')
 		if (UE_instance is None):
 			CiTestObj.UE_instance = '0'
@@ -3240,11 +3278,11 @@ def GetParametersFromXML(action):
 			#CiTestObj.air_interface = 'ocp-enb'
 			logging.error('OCP UE -- NOT SUPPORTED')
 
-	if action == 'Ping' or action == 'Ping_CatM_module':
+	elif (action == 'Ping') or (action == 'Ping_CatM_module'):
 		CiTestObj.ping_args = test.findtext('ping_args')
 		CiTestObj.ping_packetloss_threshold = test.findtext('ping_packetloss_threshold')
 
-	if action == 'Iperf':
+	elif action == 'Iperf':
 		CiTestObj.iperf_args = test.findtext('iperf_args')
 		CiTestObj.iperf_packetloss_threshold = test.findtext('iperf_packetloss_threshold')
 		CiTestObj.iperf_profile = test.findtext('iperf_profile')
@@ -3262,14 +3300,14 @@ def GetParametersFromXML(action):
 				logging.debug('ERROR: test-case has wrong option ' + CiTestObj.iperf_options)
 				CiTestObj.iperf_options = 'check'
 
-	if action == 'IdleSleep':
+	elif action == 'IdleSleep':
 		string_field = test.findtext('idle_sleep_time_in_sec')
 		if (string_field is None):
 			CiTestObj.idle_sleep_time = 5
 		else:
 			CiTestObj.idle_sleep_time = int(string_field)
 
-	if action == 'Perform_X2_Handover':
+	elif action == 'Perform_X2_Handover':
 		string_field = test.findtext('x2_ho_options')
 		if (string_field is None):
 			CiTestObj.x2_ho_options = 'network'
@@ -3280,7 +3318,7 @@ def GetParametersFromXML(action):
 			else:
 				CiTestObj.x2_ho_options = string_field
 
-	if action == 'Build_PhySim':
+	elif action == 'Build_PhySim':
 		ldpc.buildargs  = test.findtext('physim_build_args')
 		forced_workspace_cleanup = test.findtext('forced_workspace_cleanup')
 		if (forced_workspace_cleanup is None):
@@ -3291,11 +3329,9 @@ def GetParametersFromXML(action):
 			else:
 				ldpc.forced_workspace_cleanup=False
 
-	if action == 'Run_PhySim':
+	else: # ie action == 'Run_PhySim':
 		ldpc.runargs = test.findtext('physim_run_args')
 		
-	if action == 'COTS_UE_Airplane':
-		COTS_UE.runargs = test.findtext('cots_ue_airplane_args')
 
 #check if given test is in list
 #it is in list if one of the strings in 'list' is at the beginning of 'test'
@@ -3320,15 +3356,21 @@ def receive_signal(signum, frame):
 
 #loading xml action list from yaml
 import yaml
-xml_class_list_file=''
-if (os.path.isfile('xml_class_list.yml')):
-	xml_class_list_file='xml_class_list.yml'
-if (os.path.isfile('ci-scripts/xml_class_list.yml')):
-	xml_class_list_file='ci-scripts/xml_class_list.yml'
-with open(xml_class_list_file,'r') as file:
-    # The FullLoader parameter handles the conversion from YAML
-    # scalar values to Python the dictionary format
-    xml_class_list = yaml.load(file,Loader=yaml.FullLoader)
+xml_class_list_file='xml_class_list.yml'
+if (os.path.isfile(xml_class_list_file)):
+	yaml_file=xml_class_list_file
+elif (os.path.isfile('ci-scripts/'+xml_class_list_file)):
+	yaml_file='ci-scripts/'+xml_class_list_file
+else:
+	logging.error("XML action list yaml file cannot be found")
+	sys.exit("XML action list yaml file cannot be found")
+
+with open(yaml_file,'r') as f:
+    # The FullLoader parameter handles the conversion-$
+    #from YAML scalar values to Python dictionary format$
+    xml_class_list = yaml.load(f,Loader=yaml.FullLoader)
+
+
 
 mode = ''
 
@@ -3375,8 +3417,9 @@ if py_param_file_present == True:
 #-----------------------------------------------------------
 # COTS UE instanciation
 #-----------------------------------------------------------
-#COTS_UE instanciation can only be done here for the moment, due to code architecture
-COTS_UE=cls_cots_ue.CotsUe('oppo', CiTestObj.UEIPAddress, CiTestObj.UEUserName,CiTestObj.UEPassword)
+#COTS_UE instanciation and ADB server init
+#ue id and ue mode are retrieved from xml
+COTS_UE=cls_cots_ue.CotsUe(CiTestObj.ADBIPAddress, CiTestObj.ADBUserName,CiTestObj.ADBPassword)
 
 
 #-----------------------------------------------------------
@@ -3613,7 +3656,8 @@ elif re.match('^TesteNB$', mode, re.IGNORECASE) or re.match('^TestUE$', mode, re
 				GetParametersFromXML(action)
 				if action == 'Initialize_UE' or action == 'Attach_UE' or action == 'Detach_UE' or action == 'Ping' or action == 'Iperf' or action == 'Reboot_UE' or action == 'DataDisable_UE' or action == 'DataEnable_UE' or action == 'CheckStatusUE':
 					if (CiTestObj.ADBIPAddress != 'none'):
-						terminate_ue_flag = False
+						#in these cases, having no devices is critical, GetAllUEDevices function has to manage it as a critical error, reason why terminate_ue_flag is set to True
+						terminate_ue_flag = True 
 						CiTestObj.GetAllUEDevices(terminate_ue_flag)
 				if action == 'Build_eNB':
 					RAN.BuildeNB()
@@ -3688,8 +3732,6 @@ elif re.match('^TesteNB$', mode, re.IGNORECASE) or re.match('^TestUE$', mode, re
 					if ldpc.exitStatus==1:sys.exit()
 				elif action == 'Run_PhySim':
 					HTML=ldpc.Run_PhySim(HTML,CONST,id)
-				elif action == 'COTS_UE_Airplane':
-					COTS_UE.Set_Airplane(COTS_UE.runargs)
 				else:
 					sys.exit('Invalid class (action) from xml')
 		CiTestObj.FailReportCnt += 1

ci-scripts/ran.py

@@ -90,6 +90,7 @@ class RANManagement():
 		self.epcPcapFile = ''
 		self.htmlObj = None
 		self.epcObj = None
+		self.runtime_stats= ''
 
 
 
@@ -614,7 +615,7 @@ class RANManagement():
 			logging.debug('\u001B[1m Analyzing eNB replay logfile \u001B[0m')
 			logStatus = self.AnalyzeLogFile_eNB(extracted_log_file)
 			if self.htmlObj is not None:
-				self.htmlObj.CreateHtmlTestRow('N/A', 'OK', CONST.ALL_PROCESSES_OK)
+				self.htmlObj.CreateHtmlTestRow(self.runtime_stats, 'OK', CONST.ALL_PROCESSES_OK)
 			self.eNBLogFiles[int(self.eNB_instance)] = ''
 		else:
 			analyzeFile = False
@@ -643,10 +644,10 @@ class RANManagement():
 					return
 				else:
 					if self.htmlObj is not None:
-						self.htmlObj.CreateHtmlTestRow('N/A', 'OK', CONST.ALL_PROCESSES_OK)
+						self.htmlObj.CreateHtmlTestRow(self.runtime_stats, 'OK', CONST.ALL_PROCESSES_OK)
 			else:
 				if self.htmlObj is not None:
-					self.htmlObj.CreateHtmlTestRow('N/A', 'OK', CONST.ALL_PROCESSES_OK)
+					self.htmlObj.CreateHtmlTestRow(self.runtime_stats, 'OK', CONST.ALL_PROCESSES_OK)
 		self.eNBmbmsEnables[int(self.eNB_instance)] = False
 		self.eNBstatuses[int(self.eNB_instance)] = -1
 
@@ -712,16 +713,20 @@ class RANManagement():
 			if runTime != '':
 				result = re.search('Time executing user inst', str(line))
 				if result is not None:
-					userTime = 'to be decoded - 1'
+					fields=line.split(':')
+					userTime = 'userTime : ' + fields[1].replace('\n','')
 				result = re.search('Time executing system inst', str(line))
 				if result is not None:
-					systemTime = 'to be decoded - 2'
+					fields=line.split(':')
+					systemTime = 'systemTime : ' + fields[1].replace('\n','')
 				result = re.search('Max. Phy. memory usage:', str(line))
 				if result is not None:
-					maxPhyMemUsage = 'to be decoded - 3'
+					fields=line.split(':')
+					maxPhyMemUsage = 'maxPhyMemUsage : ' + fields[1].replace('\n','')
 				result = re.search('Number of context switch.*process origin', str(line))
 				if result is not None:
-					nbContextSwitches = 'to be decoded - 4'
+					fields=line.split(':')
+					nbContextSwitches = 'nbContextSwitches : ' + fields[1].replace('\n','')
 			if X2HO_state == CONST.X2_HO_REQ_STATE__IDLE:
 				result = re.search('target eNB Receives X2 HO Req X2AP_HANDOVER_REQ', str(line))
 				if result is not None:
@@ -978,11 +983,12 @@ class RANManagement():
 			global_status = CONST.ENB_PROCESS_REALTIME_ISSUE
 		if self.htmlObj is not None:
 			self.htmlObj.htmleNBFailureMsg=htmleNBFailureMsg
-		# Runtime statistics
+		# Runtime statistics for console output and HTML
 		if runTime != '':
 			logging.debug(runTime)
-			logging.debug('Time executing user inst   : ' + userTime)
-			logging.debug('Time executing system inst : ' + systemTime)
-			logging.debug('Max Physical Memory Usage  : ' + maxPhyMemUsage)
-			logging.debug('Nb Context Switches        : ' + nbContextSwitches)
+			logging.debug(userTime)
+			logging.debug(systemTime)
+			logging.debug(maxPhyMemUsage)
+			logging.debug(nbContextSwitches)
+			self.runtime_stats='<pre>'+runTime + '\n'+ userTime + '\n' + systemTime + '\n' + maxPhyMemUsage + '\n' + nbContextSwitches+'</pre>'
 		return global_status

ci-scripts/xml_class_list.yml

-  - COTS_UE_Airplane
   - Build_PhySim
   - Run_PhySim
   - Build_eNB

ci-scripts/xml_files/fr1_toggle_cots_ue.xml → ci-scripts/xml_files/fr1_epc_closure.xml

@@ -21,19 +21,27 @@
 
 -->
 <testCaseList>
-	<htmlTabRef>test-airplane-mode</htmlTabRef>
-	<htmlTabName>AirplaneToggle</htmlTabName>
-	<htmlTabIcon>tasks</htmlTabIcon>
+	<htmlTabRef>epc-closure</htmlTabRef>
+	<htmlTabName>EPC-Closure</htmlTabName>
+	<htmlTabIcon>log-out</htmlTabIcon>
 	<TestCaseRequestedList>
- 010000
+060000 060001 060002
 	</TestCaseRequestedList>
 	<TestCaseExclusionList></TestCaseExclusionList>
 
-	<testCase id="010000">
-		<class>COTS_UE_Airplane</class>
-		<desc>Toggle COTS Airplane mode ON</desc>
-		<cots_ue_airplane_args>ON</cots_ue_airplane_args>
+	<testCase id="060000">
+		<class>Terminate_HSS</class>
+		<desc>Terminate HSS</desc>
 	</testCase>
 
+	<testCase id="060001">
+		<class>Terminate_MME</class>
+		<desc>Terminate MME</desc>
+	</testCase>
+
+	<testCase id="060002">
+		<class>Terminate_SPGW</class>
+		<desc>Terminate SPGW</desc>
+	</testCase>
 
 </testCaseList>

ci-scripts/xml_files/fr1_multi_node_terminate.xml → ci-scripts/xml_files/fr1_epc_start.xml

@@ -21,30 +21,28 @@
 
 -->
 <testCaseList>
-	<htmlTabRef>test-fr1-tm1</htmlTabRef>
-	<htmlTabName>Test-FR1-TM1</htmlTabName>
-	<htmlTabIcon>tasks</htmlTabIcon>
-	<repeatCount>1</repeatCount>
+	<htmlTabRef>epc-start-tab</htmlTabRef>
+	<htmlTabName>EPC-Start</htmlTabName>
+	<htmlTabIcon>log-in</htmlTabIcon>
 	<TestCaseRequestedList>
- 070001
- 070000
+ 000100 000101 000102
 	</TestCaseRequestedList>
 	<TestCaseExclusionList>
 	</TestCaseExclusionList>
 
-	<testCase id="070000">
-		<class>Terminate_eNB</class>
-		<desc>Terminate eNB</desc>
-		<eNB_instance>0</eNB_instance>
-		<eNB_serverId>0</eNB_serverId>
+	<testCase id="000100">
+		<class>Initialize_HSS</class>
+		<desc>Initialize HSS</desc>
 	</testCase>
 
-	<testCase id="070001">
-		<class>Terminate_eNB</class>
-		<desc>Terminate gNB</desc>
-		<eNB_instance>1</eNB_instance>
-		<eNB_serverId>1</eNB_serverId>
+	<testCase id="000101">
+		<class>Initialize_MME</class>
+		<desc>Initialize MME</desc>
 	</testCase>
 
-</testCaseList>
+	<testCase id="000102">
+		<class>Initialize_SPGW</class>
+		<desc>Initialize SPGW</desc>
+	</testCase>
 
+</testCaseList>

ci-scripts/xml_files/fr1_ran_ue_proc.xml

+<!--
+
+ Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ contributor license agreements.  See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The OpenAirInterface Software Alliance licenses this file to You under
+ the OAI Public License, Version 1.1  (the "License"); you may not use this file
+ except in compliance with the License.
+ You may obtain a copy of the License at
+
+      http://www.openairinterface.org/?page_id=698
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+ For more information about the OpenAirInterface (OAI) Software Alliance:
+      contact@openairinterface.org
+
+-->
+<testCaseList>
+	<htmlTabRef>TEST-FR1-TM1</htmlTabRef>
+	<htmlTabName>FR1</htmlTabName>
+	<htmlTabIcon>tasks</htmlTabIcon>
+	<TestCaseRequestedList>
+ 010000
+ 030000
+ 040000
+ 010001
+ 000001
+ 050000
+ 050001
+ 070001
+ 070000
+ 010002
+ 010003
+	</TestCaseRequestedList>
+	<TestCaseExclusionList></TestCaseExclusionList>
+
+	<testCase id="010000">
+		<class>Initialize_UE</class>
+		<desc>Initialize UE</desc>
+	</testCase>
+
+	<testCase id="010003">
+		<class>Terminate_UE</class>
+		<desc>Terminate UE</desc>
+	</testCase>
+
+	<testCase id="010001">
+		<class>Attach_UE</class>
+		<desc>Attach UE</desc>
+	</testCase>
+
+	<testCase id="010002">
+		<class>Detach_UE</class>
+		<desc>Detach UE</desc>
+	</testCase>
+
+
+	<testCase id="030000">
+		<class>Initialize_eNB</class>
+		<desc>Initialize eNB</desc>
+		<Initialize_eNB_args>-O ci-scripts/conf_files/enb.band7.tm1.fr1.25PRB.usrpb210.conf</Initialize_eNB_args>
+		<eNB_instance>0</eNB_instance>
+		<eNB_serverId>0</eNB_serverId>
+		<air_interface>lte</air_interface>
+   </testCase>
+
+
+	<testCase id="040000">
+		<class>Initialize_eNB</class>
+		<desc>Initialize gNB</desc>
+		<Initialize_eNB_args>-O ci-scripts/conf_files/gnb.band78.tm1.fr1.106PRB.usrpb210.conf -E</Initialize_eNB_args>
+		<eNB_instance>1</eNB_instance>
+		<eNB_serverId>1</eNB_serverId>
+		<air_interface>nr</air_interface>
+	</testCase>
+
+	<testCase id="000001">
+		<class>IdleSleep</class>
+		<desc>Sleep</desc>
+		<idle_sleep_time_in_sec>20</idle_sleep_time_in_sec>
+	</testCase>
+
+	<testCase id="050000">
+		<class>Ping</class>
+		<desc>Ping: 20pings in 20sec</desc>
+		<ping_args>-c 20</ping_args>
+		<ping_packetloss_threshold>0</ping_packetloss_threshold>
+	</testCase>
+
+	<testCase id="050001">
+		<class>Ping</class>
+		<desc>Ping: 5pings in 1sec</desc>
+		<ping_args>-c 5 -i 0.2</ping_args>
+		<ping_packetloss_threshold>0</ping_packetloss_threshold>
+	</testCase>
+
+	<testCase id="070000">
+		<class>Terminate_eNB</class>
+		<desc>Terminate eNB</desc>
+		<eNB_instance>0</eNB_instance>
+		<eNB_serverId>0</eNB_serverId>
+	</testCase>
+
+	<testCase id="070001">
+		<class>Terminate_eNB</class>
+		<desc>Terminate gNB</desc>
+		<eNB_instance>1</eNB_instance>
+		<eNB_serverId>1</eNB_serverId>
+	</testCase>
+
+</testCaseList>
+

cmake_targets/CMakeLists.txt

@@ -2377,6 +2377,7 @@ add_library(LFDS7
 add_library(SIMU_COMMON
   ${OPENAIR1_DIR}/SIMULATION/TOOLS/random_channel.c
   ${OPENAIR1_DIR}/SIMULATION/TOOLS/rangen_double.c
+  ${OPENAIR1_DIR}/SIMULATION/TOOLS/phase_noise.c
   )
 
 # Simulation library

cmake_targets/autotests/test_case_list.xml

@@ -1276,7 +1276,10 @@
                                  (Test2: MCS 16 50 PRBs),
                                  (Test3: MCS 28 50 PRBs),
                                  (Test4: MCS 9 217 PRBs),
-                                 (Test5: MCS 9 273 PRBs)</desc>
+                                 (Test5: MCS 9 273 PRBs),
+                                 (Test6: DMRS Type A, 3 DMRS, 4 PTRS, 5 Interpolated Symbols),
+                                 (Test7: DMRS Type B, 3 DMRS, 2 PTRS, 7 Interpolated Symbols),
+                                 (Test8: DMRS Type B, 3 DMRS, 2 PTRS, 3 Interpolated Symbols)</desc>
       <pre_compile_prog></pre_compile_prog>
       <compile_prog>$OPENAIR_DIR/cmake_targets/build_oai</compile_prog>
       <compile_prog_args> --phy_simulators  -c </compile_prog_args>
@@ -1287,8 +1290,11 @@
                       -n100 -m16 -s10
                       -n100 -m28 -s20
                       -n100 -m9 -R217 -r217 -s5
-                      -n100 -m9 -R273 -r273 -s5</main_exec_args>
-      <tags>nr_ulsim.test1 nr_ulsim.test2 nr_ulsim.test3 nr_ulsim.test4 nr_ulsim.test5</tags>
+                      -n100 -m9 -R273 -r273 -s5
+                      -n100 -s5 -T 2 1 2 -U 2 0 2
+                      -n100 -s5 -T 2 2 2 -U 2 1 2
+                      -n100 -s5 -a4 -b8 -T 2 1 2 -U 2 1 3</main_exec_args>
+      <tags>nr_ulsim.test1 nr_ulsim.test2 nr_ulsim.test3 nr_ulsim.test4 nr_ulsim.test5 nr_ulsim.test6 nr_ulsim.test7 nr_ulsim.test8</tags>
       <search_expr_true>PUSCH test OK</search_expr_true>
       <search_expr_false>segmentation fault|assertion|exiting|fatal</search_expr_false>
       <nruns>3</nruns>

cmake_targets/build_oai

@@ -211,7 +211,7 @@ function main() {
                     GDB=0
                     CMAKE_BUILD_TYPE="RelWithDebInfo"
                     echo_info "Will Compile with gdb symbols"
-                    CMAKE_CMD="$CMAKE_CMD -DCMAKE_BUILD_TYPE=RelWithDebInfo"
+                    CMAKE_CMD="$CMAKE_CMD -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_EXPORT_COMPILE_COMMANDS=1"
                     shift
                     ;;
                 "MinSizeRel")

doc/BUILD.md

@@ -16,6 +16,7 @@ This page is valid on tags starting from **`2019.w09`**.
 
 # Soft Modem Build Script
 
+The OAI EPC is developed in a distinct project with it's own [documentation](https://github.com/OPENAIRINTERFACE/openair-epc-fed/wiki) , it is not described here.
 
 OAI softmodem sources, which aim to implement 3GPP compliant UEs, eNodeB and gNodeB can be downloaded from the Eurecom [gitlab repository](./GET_SOURCES.md).
 

doc/GET_SOURCES.md

@@ -33,12 +33,8 @@ holds the source code for (eNB RAN + UE RAN).
 For legal issues (licenses), the core network (EPC) source code is now moved away from
 the above openairinterface5g git repository.
 
-*  A very old version of the EPC is located under the same GitLab Eurecom server (splitted into 2 Git repos):
-   *  [openair-cn](https://gitlab.eurecom.fr/oai/openair-cn.git) with apache license
-   *  [xtables-addons-oai](https://gitlab.eurecom.fr/oai/xtables-addons-oai.git) with GPL license
-   *  **These repositories are no more maintained.**
 *  A more recent version is available under our GitHub domain:
-   *  [OAI GitHub openair-cn](https://github.com/OPENAIRINTERFACE/openair-cn)
+   *  [OAI GitHub openair-cn domain](https://github.com/OPENAIRINTERFACE)
    *  Check its wiki pages for more details
 
 Configure git with your name/email address (only important if you are developer and want to contribute/push code to Git Repository):
@@ -80,8 +76,6 @@ you do not have account on gitlab.eurecom.fr, please register yourself to gitlab
    * `git clone git@gitlab.eurecom.fr:oai/openairinterface5g.git`
 * Clone with user name/password prompt:
    * `git clone https://YOUR_USERNAME@gitlab.eurecom.fr/oai/openairinterface5g.git`
-   * `git clone https://YOUR_USERNAME@gitlab.eurecom.fr/oai/openair-cn.git`
-   * `git clone https://YOUR_USERNAME@gitlab.eurecom.fr/oai/xtables-addons-oai.git` (optional, openair-cn build script can do it for you)
 
 # Which branch to checkout?
 

doc/TESTBenches.md

+## Table of Contents ##
+
+1.   [Legacy 1 Bench](#legacy-1-bench)
+2.   [Legacy 2 Bench](#legacy-2-bench)
+3.   [Next Bench for DEV](#next-bench-for-dev)
+4.   [Next Bench for CI](#next-bench-for-ci)
+5.   [Indoor Live Network Bench](#indoor-live-network-bench)
+6.   [Outdoor Live Network Bench](#outdoor-live-network-bench)
+
+
+## Legacy 1 Bench
+
+**Purpose** : FDD Band 7 and Band 13, LTE-M  
+**Note** : Legacy1 and Legacy2 are duplicated so that they can run in parallel, thus avoiding a CI bottleneck  
+**Note** : Faraday Cages 1 and 2 are physically the same cage  
+
+![image info](./testbenches_doc_resources/legacy1.jpg)
+
+## Legacy 2 Bench
+
+**Purpose** : TDD Band 40, TM2 2xTX 2xRX  
+**Note** : CN can run in a container, could also run on Massive 
+
+![image info](./testbenches_doc_resources/legacy2.jpg)
+
+## Next Bench for DEV
+
+**Note** : Benetel CI can also run on this bench at night 
+
+![image info](./testbenches_doc_resources/next_dev.jpg)
+
+
+## Next Bench for CI
+
+**Note** : The current test running on Caracal could run on this bench with a N300/N300 setup  
+
+![image info](./testbenches_doc_resources/next_ci.jpg)
+
+## Indoor Live Network Bench
+
+![image info](./testbenches_doc_resources/indoor_live.jpg)
+
+## Outdoor Live Network Bench
+
+![image info](./testbenches_doc_resources/outdoor_live.jpg)

doc/TESTING_GNB_W_COTS_UE.md

@@ -220,17 +220,16 @@ Execute:
 - **gNB** (on the gNB host)
 
 
+**ATTENTION** : for the gNB execution,    
+The **-E** option is required to enable the tri-quarter sampling rate when using a B2xx serie USRP  
+The **-E** option is **NOT supported** when using a a N300 USRP  
+
 Execute: 
 ```
 ~/openairinterface5g/cmake_targets/ran_build/build$ sudo ./nr-softmodem -O **YOUR_GNB_CONF_FILE** -E | tee **YOUR_LOG_FILE**
 
 ```
 
-**ATTENTION** : for the gNB execution,    
-The -E option is required to enable the tri-quarter sampling rate when using a B2xx serie USRP  
-The -E opton is not needed when using a a N300 USRP  
-
-
 
 ## Test Case
 

docker/Dockerfile.enb.rhel7.oc4-4

+#/*
+# * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+# * contributor license agreements.  See the NOTICE file distributed with
+# * this work for additional information regarding copyright ownership.
+# * The OpenAirInterface Software Alliance licenses this file to You under
+# * the OAI Public License, Version 1.1  (the "License"); you may not use this file
+# * except in compliance with the License.
+# * You may obtain a copy of the License at
+# *
+# *      http://www.openairinterface.org/?page_id=698
+# *
+# * Unless required by applicable law or agreed to in writing, software
+# * distributed under the License is distributed on an "AS IS" BASIS,
+# * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# * See the License for the specific language governing permissions and
+# * limitations under the License.
+# *-------------------------------------------------------------------------------
+# * For more information about the OpenAirInterface (OAI) Software Alliance:
+# *      contact@openairinterface.org
+# */
+#---------------------------------------------------------------------
+#
+# Dockerfile for the Open-Air-Interface eNB service
+#   Valid for RHEL7 in the OpenShift context (v4.4)
+#
+#---------------------------------------------------------------------
+
+
+ARG REGISTRY=localhost
+FROM $REGISTRY/oai-build-base:latest.el7 AS builder
+
+ARG GIT_TAG=v1.1.1
+
+WORKDIR /root
+
+RUN if [ "$EURECOM_PROXY" == true ]; then git config --global http.proxy http://:@proxy.eurecom.fr:8080; fi
+
+RUN git clone --depth=1 --branch=$GIT_TAG https://gitlab.eurecom.fr/oai/openairinterface5g.git
+COPY patches patches/
+RUN patch -p1 -d openairinterface5g < patches/disable_building_nasmesh_and_rbtool.patch \
+    && patch -p1 -d openairinterface5g < patches/disable_sched_fifo_fail_exits.patch
+RUN cd openairinterface5g/cmake_targets \
+    && ln -sf /usr/local/bin/asn1c_oai /usr/local/bin/asn1c \
+    && ln -sf /usr/local/share/asn1c_oai /usr/local/share/asn1c \
+    && ./build_oai -c --eNB -w USRP --verbose-compile
+
+
+FROM registry.redhat.io/ubi7/ubi
+LABEL name="oai-enb" \
+      version="$GIT_TAG" \
+      maintainer="Frank A. Zdarsky <fzdarsky@redhat.com>" \
+      io.k8s.description="openairinterface5g eNB $GIT_TAG." \
+      io.openshift.tags="oai,enb" \
+      io.openshift.non-scalable="true"
+
+RUN yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm \
+    && REPOLIST="rhel-7-server-optional-rpms" \
+    && PKGLIST="boost libconfig lksctp-tools protobuf-c iproute iputils procps-ng bind-utils xforms nettle libyaml libusb" \
+    # && yum -y upgrade-minimal --setopt=tsflags=nodocs --security --sec-severity=Critical --sec-severity=Important && \
+    && yum -y install --enablerepo ${REPOLIST} --setopt=tsflag=nodocs ${PKGLIST} \
+    && yum -y clean all \
+    && rm -rf /var/cache/yum
+
+ENV APP_ROOT=/opt/oai-enb
+ENV PATH=${APP_ROOT}:${PATH} HOME=${APP_ROOT}
+COPY --from=builder /root/openairinterface5g/cmake_targets/lte_build_oai/build/lte-softmodem ${APP_ROOT}/bin/
+COPY --from=builder /root/openairinterface5g/cmake_targets/lte_build_oai/build/*.so* /lib64
+COPY --from=builder /usr/local/lib64 /lib64
+COPY --from=builder /usr/local/bin/uhd_* /usr/local/bin
+COPY --from=builder /usr/local/share/uhd /usr/local/share/uhd
+RUN cd /lib64 \
+    && ln -sf liboai_eth_transpro.so liboai_transpro.so \
+    && ln -sf liboai_usrpdevif.so liboai_device.so \
+    && ln -sf libuhd.so.3.13 libuhd.so.3 \
+    && ln -sf libuhd.so.3 libuhd.so
+COPY scripts ${APP_ROOT}/bin/
+COPY configs ${APP_ROOT}/etc/
+RUN chmod -R u+x ${APP_ROOT} && \
+    chgrp -R 0 ${APP_ROOT} && \
+    chmod -R g=u ${APP_ROOT} /etc/passwd
+USER 10001
+WORKDIR ${APP_ROOT}
+
+EXPOSE 2152/udp  # S1U, GTP/UDP
+EXPOSE 22100/tcp # ?
+EXPOSE 36412/udp # S1C, SCTP/UDP
+EXPOSE 36422/udp # X2C, SCTP/UDP
+EXPOSE 50000/udp # IF5 / ORI (control)
+EXPOSE 50001/udp # IF5 / ECPRI (data)
+
+CMD ["/opt/oai-enb/bin/lte-softmodem", "-O", "/opt/oai-enb/etc/enb.conf"]
+ENTRYPOINT ["/opt/oai-enb/bin/entrypoint.sh"]

openair1/PHY/INIT/nr_init.c

@@ -251,10 +251,11 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB,
     pusch_vars[ULSCH_id]->ul_ch_estimates_ext   = (int32_t **)malloc16(Prx*sizeof(int32_t *) );
     pusch_vars[ULSCH_id]->ul_ch_ptrs_estimates     = (int32_t **)malloc16(Prx*sizeof(int32_t *) );
     pusch_vars[ULSCH_id]->ul_ch_ptrs_estimates_ext = (int32_t **)malloc16(Prx*sizeof(int32_t *) );
+    pusch_vars[ULSCH_id]->ptrs_phase_per_slot   = (int32_t **)malloc16(Prx*sizeof(int32_t *) );
     pusch_vars[ULSCH_id]->ul_ch_estimates_time  = (int32_t **)malloc16(Prx*sizeof(int32_t *) );
     pusch_vars[ULSCH_id]->rxdataF_comp          = (int32_t **)malloc16(Prx*sizeof(int32_t *) );
-    pusch_vars[ULSCH_id]->ul_ch_mag0             = (int32_t **)malloc16(Prx*sizeof(int32_t *) );
-    pusch_vars[ULSCH_id]->ul_ch_magb0            = (int32_t **)malloc16(Prx*sizeof(int32_t *) );
+    pusch_vars[ULSCH_id]->ul_ch_mag0            = (int32_t **)malloc16(Prx*sizeof(int32_t *) );
+    pusch_vars[ULSCH_id]->ul_ch_magb0           = (int32_t **)malloc16(Prx*sizeof(int32_t *) );
     pusch_vars[ULSCH_id]->ul_ch_mag             = (int32_t **)malloc16(Prx*sizeof(int32_t *) );
     pusch_vars[ULSCH_id]->ul_ch_magb            = (int32_t **)malloc16(Prx*sizeof(int32_t *) );
     pusch_vars[ULSCH_id]->rho                   = (int32_t **)malloc16_clear(Prx*sizeof(int32_t*) );
@@ -268,16 +269,18 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB,
       pusch_vars[ULSCH_id]->ul_ch_estimates_time[i]  = (int32_t *)malloc16_clear( 2*sizeof(int32_t)*fp->ofdm_symbol_size );
       pusch_vars[ULSCH_id]->ul_ch_ptrs_estimates[i]       = (int32_t *)malloc16_clear( sizeof(int32_t)*fp->ofdm_symbol_size*2*fp->symbols_per_slot ); // max intensity in freq is 1 sc every 2 RBs
       pusch_vars[ULSCH_id]->ul_ch_ptrs_estimates_ext[i]   = (int32_t *)malloc16_clear( sizeof(int32_t)*fp->ofdm_symbol_size*2*fp->symbols_per_slot );
+      pusch_vars[ULSCH_id]->ptrs_phase_per_slot[i]   = (int32_t *)malloc16_clear( sizeof(int32_t)*fp->symbols_per_slot); // symbols per slot
       pusch_vars[ULSCH_id]->rxdataF_comp[i]          = (int32_t *)malloc16_clear( sizeof(int32_t)*N_RB_UL*12*fp->symbols_per_slot );
-      pusch_vars[ULSCH_id]->ul_ch_mag0[i]             = (int32_t *)malloc16_clear( fp->symbols_per_slot*sizeof(int32_t)*N_RB_UL*12 );
-      pusch_vars[ULSCH_id]->ul_ch_magb0[i]            = (int32_t *)malloc16_clear( fp->symbols_per_slot*sizeof(int32_t)*N_RB_UL*12 );
+      pusch_vars[ULSCH_id]->ul_ch_mag0[i]            = (int32_t *)malloc16_clear( fp->symbols_per_slot*sizeof(int32_t)*N_RB_UL*12 );
+      pusch_vars[ULSCH_id]->ul_ch_magb0[i]           = (int32_t *)malloc16_clear( fp->symbols_per_slot*sizeof(int32_t)*N_RB_UL*12 );
       pusch_vars[ULSCH_id]->ul_ch_mag[i]             = (int32_t *)malloc16_clear( fp->symbols_per_slot*sizeof(int32_t)*N_RB_UL*12 );
       pusch_vars[ULSCH_id]->ul_ch_magb[i]            = (int32_t *)malloc16_clear( fp->symbols_per_slot*sizeof(int32_t)*N_RB_UL*12 );
       pusch_vars[ULSCH_id]->rho[i]                   = (int32_t *)malloc16_clear( sizeof(int32_t)*(fp->N_RB_UL*12*7*2) );
     }
     printf("ULSCH_id %d (before llr alloc) : %p\n",ULSCH_id,gNB->dlsch[0][0]->harq_processes[0]);
     pusch_vars[ULSCH_id]->llr = (int16_t *)malloc16_clear( (8*((3*8*6144)+12))*sizeof(int16_t) ); // [hna] 6144 is LTE and (8*((3*8*6144)+12)) is not clear
-    printf("ULSCH_id %d (after llr alloc) : %p\n",ULSCH_id,gNB->dlsch[0][0]->harq_processes[0]); 
+    printf("ULSCH_id %d (after llr alloc) : %p\n",ULSCH_id,gNB->dlsch[0][0]->harq_processes[0]);
+    pusch_vars[ULSCH_id]->ul_valid_re_per_slot  = (int16_t *)malloc16_clear( sizeof(int16_t)*fp->symbols_per_slot);
   } //ulsch_id
 /*
   for (ulsch_id=0; ulsch_id<NUMBER_OF_UE_MAX; ulsch_id++)
@@ -338,6 +341,7 @@ void phy_free_nr_gNB(PHY_VARS_gNB *gNB)
       free_and_zero(pusch_vars[ULSCH_id]->ul_ch_estimates_time[i]);
       free_and_zero(pusch_vars[ULSCH_id]->ul_ch_ptrs_estimates[i]);
       free_and_zero(pusch_vars[ULSCH_id]->ul_ch_ptrs_estimates_ext[i]);
+      free_and_zero(pusch_vars[ULSCH_id]->ptrs_phase_per_slot[i]);
       free_and_zero(pusch_vars[ULSCH_id]->rxdataF_comp[i]);
       free_and_zero(pusch_vars[ULSCH_id]->ul_ch_mag0[i]);
       free_and_zero(pusch_vars[ULSCH_id]->ul_ch_magb0[i]);
@@ -353,6 +357,8 @@ void phy_free_nr_gNB(PHY_VARS_gNB *gNB)
     free_and_zero(pusch_vars[ULSCH_id]->ul_ch_ptrs_estimates);
     free_and_zero(pusch_vars[ULSCH_id]->ul_ch_ptrs_estimates_ext);
     free_and_zero(pusch_vars[ULSCH_id]->ul_ch_estimates_time);
+    free_and_zero(pusch_vars[ULSCH_id]->ptrs_phase_per_slot);
+    free_and_zero(pusch_vars[ULSCH_id]->ul_valid_re_per_slot);
     free_and_zero(pusch_vars[ULSCH_id]->rxdataF_comp);
     free_and_zero(pusch_vars[ULSCH_id]->ul_ch_mag0);
     free_and_zero(pusch_vars[ULSCH_id]->ul_ch_magb0);

openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c

@@ -25,6 +25,8 @@
 #include "nr_ul_estimation.h"
 #include "PHY/sse_intrin.h"
 #include "PHY/NR_REFSIG/nr_refsig.h"
+#include "PHY/NR_REFSIG/ptrs_nr.h"
+#include "PHY/NR_TRANSPORT/nr_transport_proto.h"
 #include "PHY/NR_UE_ESTIMATION/filt16a_32.h"
 
 //#define DEBUG_CH
@@ -507,3 +509,408 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
 
   return(0);
 }
+
+
+/*******************************************************************
+ *
+ * NAME :         nr_pusch_ptrs_processing
+ *
+ * PARAMETERS :   gNB         : gNB data structure
+ *                rel15_ul    : UL parameters
+ *                UE_id       : UE ID
+ *                nr_tti_rx   : slot rx TTI
+ *            dmrs_symbol_flag: DMRS Symbol Flag
+ *                symbol      : OFDM Symbol
+ *                nb_re_pusch : PUSCH RE's
+ *                nb_re_pusch : PUSCH RE's
+ *
+ * RETURN :       nothing
+ *
+ * DESCRIPTION :
+ *  If ptrs is enabled process the symbol accordingly
+ *  1) Estimate phase noise per PTRS symbol
+ *  2) Interpolate PTRS estimated value in TD after all PTRS symbols
+ *  3) Compensated DMRS based estimated signal with PTRS estimation for slot
+ *********************************************************************/
+void nr_pusch_ptrs_processing(PHY_VARS_gNB *gNB,
+                              nfapi_nr_pusch_pdu_t *rel15_ul,
+                              uint8_t ulsch_id,
+                              uint8_t nr_tti_rx,
+                              uint8_t dmrs_symbol_flag,
+                              unsigned char symbol,
+                              uint32_t nb_re_pusch)
+{
+  NR_DL_FRAME_PARMS *frame_parms = &gNB->frame_parms;
+  int16_t *phase_per_symbol;
+
+  uint8_t         L_ptrs          = 0;
+  uint8_t         right_side_ref  = 0;
+  uint8_t         left_side_ref   = 0;
+  uint8_t         nb_dmrs_in_slot = 0;
+
+  //#define DEBUG_UL_PTRS 1
+  /* First symbol calculate PTRS symbol index for slot & set the variables */
+  if(symbol == rel15_ul->start_symbol_index)
+  {
+    gNB->pusch_vars[ulsch_id]->ptrs_symbols = 0;
+    L_ptrs = 1<<(rel15_ul->pusch_ptrs.ptrs_time_density);
+    set_ptrs_symb_idx(&gNB->pusch_vars[ulsch_id]->ptrs_symbols,
+                      rel15_ul->nr_of_symbols,
+                      rel15_ul->start_symbol_index,
+                      L_ptrs,
+                      rel15_ul->ul_dmrs_symb_pos);
+  }/* First symbol check */
+
+  /* loop over antennas */
+  for (int aarx=0; aarx< frame_parms->nb_antennas_rx; aarx++)
+  {
+    phase_per_symbol = (int16_t*)gNB->pusch_vars[ulsch_id]->ptrs_phase_per_slot[aarx];
+    /* set the previous estimations to zero at first symbol */
+    if(symbol == rel15_ul->start_symbol_index)
+    {
+      memset(phase_per_symbol,0,sizeof(int32_t)*frame_parms->symbols_per_slot);
+    }
+    /* if not PTRS symbol set current ptrs symbol index to zero*/
+    gNB->pusch_vars[ulsch_id]->ptrs_symbol_index = 0;
+    gNB->pusch_vars[ulsch_id]->ptrs_sc_per_ofdm_symbol = 0;
+    /* Check if current symbol contains PTRS */
+    if(is_ptrs_symbol(symbol, gNB->pusch_vars[ulsch_id]->ptrs_symbols))
+    {
+      gNB->pusch_vars[ulsch_id]->ptrs_symbol_index = symbol;
+      /*------------------------------------------------------------------------------------------------------- */
+      /* 1) Estimate phase noise per PTRS symbol                                                                */
+      /*------------------------------------------------------------------------------------------------------- */
+      nr_pusch_phase_estimation(frame_parms,
+                                rel15_ul,
+                                (int16_t *)&gNB->pusch_vars[ulsch_id]->ul_ch_ptrs_estimates_ext[aarx][symbol*nb_re_pusch],
+                                nr_tti_rx,
+                                symbol,
+                                (int16_t*)&gNB->pusch_vars[ulsch_id]->rxdataF_comp[aarx][(symbol * nb_re_pusch)],
+                                gNB->nr_gold_pusch_dmrs[rel15_ul->scid],
+                                &phase_per_symbol[2* symbol],
+                                &gNB->pusch_vars[ulsch_id]->ptrs_sc_per_ofdm_symbol);
+    }
+    /* DMRS Symbol channel estimates extraction */
+    else if(dmrs_symbol_flag)
+    {
+      phase_per_symbol[2* symbol]= (int16_t)((1<<15)-1); // 32767
+      phase_per_symbol[2* symbol +1]= 0;// no angle
+    }
+    /* For last OFDM symbol at each antenna perform interpolation and compensation for the slot*/
+    if(symbol == (rel15_ul->start_symbol_index + rel15_ul->nr_of_symbols -1))
+    {
+      nb_dmrs_in_slot = get_dmrs_symbols_in_slot(rel15_ul->ul_dmrs_symb_pos,(rel15_ul->start_symbol_index + rel15_ul->nr_of_symbols));
+      for(uint8_t dmrs_sym = 0; dmrs_sym < nb_dmrs_in_slot;  dmrs_sym ++)
+      {
+        if(dmrs_sym == 0)
+        {
+          /* get first DMRS position */
+          left_side_ref = get_next_dmrs_symbol_in_slot(rel15_ul->ul_dmrs_symb_pos, rel15_ul->start_symbol_index, (rel15_ul->start_symbol_index + rel15_ul->nr_of_symbols));
+          /* get first DMRS position is not at start symbol position then we need to extrapolate left side  */
+          if(left_side_ref > rel15_ul->start_symbol_index)
+          {
+            left_side_ref = rel15_ul->start_symbol_index;
+          }
+        }
+        /* get the next symbol from left_side_ref value */
+        right_side_ref = get_next_dmrs_symbol_in_slot(rel15_ul->ul_dmrs_symb_pos, left_side_ref+1, (rel15_ul->start_symbol_index + rel15_ul->nr_of_symbols));
+        /* if no symbol found then interpolate till end of slot*/
+        if(right_side_ref == 0)
+        {
+          right_side_ref = (rel15_ul->start_symbol_index + rel15_ul->nr_of_symbols);
+        }
+        /*------------------------------------------------------------------------------------------------------- */
+        /* 2) Interpolate PTRS estimated value in TD */
+        /*------------------------------------------------------------------------------------------------------- */
+        nr_pusch_phase_interpolation(phase_per_symbol,left_side_ref,right_side_ref);
+        /* set left to last dmrs */
+        left_side_ref = right_side_ref;
+      } /*loop over dmrs positions */
+
+#ifdef DEBUG_UL_PTRS
+      LOG_M("ptrsEst.m","est",gNB->pusch_vars[ulsch_id]->ptrs_phase_per_slot[aarx],frame_parms->symbols_per_slot,1,1 );
+      LOG_M("rxdataF_bf_ptrs_comp.m","bf_ptrs_cmp",
+            &gNB->pusch_vars[0]->rxdataF_comp[aarx][rel15_ul->start_symbol_index * NR_NB_SC_PER_RB * rel15_ul->rb_size],
+            rel15_ul->nr_of_symbols * NR_NB_SC_PER_RB * rel15_ul->rb_size,1,1);
+#endif
+
+      /*------------------------------------------------------------------------------------------------------- */
+      /* 3) Compensated DMRS based estimated signal with PTRS estimation                                        */
+      /*--------------------------------------------------------------------------------------------------------*/
+      for(uint8_t i =rel15_ul->start_symbol_index; i< (rel15_ul->start_symbol_index + rel15_ul->nr_of_symbols);i++)
+      {
+#ifdef DEBUG_UL_PTRS
+        printf("PTRS: Rotate Symbol %2d with  %d + j* %d\n", i, phase_per_symbol[2* i],phase_per_symbol[(2* i) +1]);
+#endif
+        rotate_cpx_vector((int16_t*)&gNB->pusch_vars[ulsch_id]->rxdataF_comp[aarx][(i * rel15_ul->rb_size * NR_NB_SC_PER_RB)],
+                          &phase_per_symbol[2* i],
+                          (int16_t*)&gNB->pusch_vars[ulsch_id]->rxdataF_comp[aarx][(i * rel15_ul->rb_size * NR_NB_SC_PER_RB)],
+                          (rel15_ul->rb_size * NR_NB_SC_PER_RB),
+                          15);
+      }// symbol loop
+    }//interpolation and compensation
+  }// Antenna loop
+}
+
+/*******************************************************************
+ *
+ * NAME :         nr_pusch_phase_estimation
+ *
+ * PARAMETERS :   frame_parms  : UL frame parameters
+ *                rel15_ul     : UL PDU Structure
+ *                Ns           :
+ *                Symbol       : OFDM symbol index
+ *                rxF          : Channel compensated signal
+ *                ptrs_gold_seq: Gold sequence for PTRS regeneration
+ *                error_est    : Estimated error output vector [Re Im]
+ * RETURN :       nothing
+ *
+ * DESCRIPTION :
+ *  perform phase estimation from regenerated PTRS SC and channel compensated
+ *  signal
+ *********************************************************************/
+void nr_pusch_phase_estimation(NR_DL_FRAME_PARMS *frame_parms,
+                               nfapi_nr_pusch_pdu_t *rel15_ul,
+                               int16_t *ptrs_ch_p,
+                               unsigned char Ns,
+                               unsigned char symbol,
+                               int16_t *rxF_comp,
+                               uint32_t ***ptrs_gold_seq,
+                               int16_t *error_est,
+                               uint16_t *ptrs_sc)
+{
+  uint8_t               is_ptrs_re       = 0;
+  uint16_t              re_cnt           = 0;
+  uint16_t              cnt              = 0;
+  unsigned short        nb_re_pusch      = NR_NB_SC_PER_RB * rel15_ul->rb_size;
+  uint8_t               K_ptrs           = rel15_ul->pusch_ptrs.ptrs_freq_density;
+  uint16_t              sc_per_symbol    = (rel15_ul->rb_size + K_ptrs - 1)/K_ptrs;
+  int16_t              *ptrs_p           = (int16_t *)malloc(sizeof(int32_t)*(sc_per_symbol));
+  int16_t              *dmrs_comp_p      = (int16_t *)malloc(sizeof(int32_t)*(sc_per_symbol));
+  double                abs              = 0.0;
+  double                real             = 0.0;
+  double                imag             = 0.0;
+#ifdef DEBUG_UL_PTRS
+  double                alpha            = 0;
+#endif
+  /* generate PTRS RE for the symbol */
+  nr_gen_ref_conj_symbols(ptrs_gold_seq[Ns][symbol],sc_per_symbol*2,ptrs_p, NR_MOD_TABLE_QPSK_OFFSET,2);// 2 for QPSK
+
+  /* loop over all sub carriers to get compensated RE on ptrs symbols*/
+  for (int re = 0; re < nb_re_pusch; re++)
+  {
+    is_ptrs_re = is_ptrs_subcarrier(re,
+                                    rel15_ul->rnti,
+                                    0,
+                                    rel15_ul->dmrs_config_type,
+                                    K_ptrs,
+                                    rel15_ul->rb_size,
+                                    rel15_ul->pusch_ptrs.ptrs_ports_list[0].ptrs_re_offset,
+                                    0,// start_re is 0 here
+                                    frame_parms->ofdm_symbol_size);
+    if(is_ptrs_re)
+    {
+      dmrs_comp_p[re_cnt*2]     = rxF_comp[re *2];
+      dmrs_comp_p[(re_cnt*2)+1] = rxF_comp[(re *2)+1];
+      re_cnt++;
+    }
+    else
+    {
+      /* Skip PTRS symbols and keep data in a continuous vector */
+      rxF_comp[cnt *2]= rxF_comp[re *2];
+      rxF_comp[(cnt *2)+1]= rxF_comp[(re *2)+1];
+      cnt++;
+    }
+  }/* RE loop */
+  /* update the total ptrs RE in a symbol */
+  *ptrs_sc = re_cnt;
+
+  /*Multiple compensated data with conj of PTRS */
+  mult_cpx_vector(dmrs_comp_p, ptrs_p, ptrs_ch_p,(1 + sc_per_symbol/4)*4,15); // 2^15 shifted
+
+  /* loop over all ptrs sub carriers in a symbol */
+  /* sum the error vector */
+  for(int i = 0;i < sc_per_symbol; i++)
+  {
+    real+= ptrs_ch_p[(2*i)];
+    imag+= ptrs_ch_p[(2*i)+1];
+  }
+#ifdef DEBUG_UL_PTRS
+    alpha = atan(imag/real);
+    printf("PTRS: Symbol  %d atan(Im,real):= %f \n",symbol, alpha );
+#endif
+  /* mean */
+  real /= sc_per_symbol;
+  imag /= sc_per_symbol;
+  /* absolute calculation */
+  abs = sqrt(((real * real) + (imag *  imag)));
+  /* normalized error estimation */
+  error_est[0]= (real / abs)*(1<<15);
+  /* compensation in given by conjugate of estimated phase (e^-j*2*pi*fd*t)*/
+  error_est[1]= (-1)*(imag / abs)*(1<<15);
+#ifdef DEBUG_UL_PTRS
+    printf("PTRS: Estimated Symbol  %d -> %d + j* %d \n",symbol, error_est[0], error_est[1] );
+#endif
+  /* free vectors */
+  free(ptrs_p);
+  free(dmrs_comp_p);
+}
+
+
+/*******************************************************************
+ *
+ * NAME :         nr_pusch_phase_interpolation
+ *
+ * PARAMETERS :   *error_est    : Data Pointer [Re Im Re Im ...]
+ *                 start_symbol : Start Symbol
+ *                 end_symbol   : End Symbol
+ * RETURN :       nothing
+ *
+ * DESCRIPTION :
+ * Perform Interpolation, extrapolation based upon the estimation
+ * location between the data Pointer Array.
+ *
+ *********************************************************************/
+void nr_pusch_phase_interpolation(int16_t *error_est,
+                                  uint8_t start_symbol,
+                                  uint8_t end_symbol
+                                  )
+{
+
+  int next = 0, prev = 0, candidates= 0, distance=0, leftEdge= 0, rightEdge = 0, getDiff =0 ;
+  double weight = 0.0;
+  double scale  = 0.125 ; // to avoid saturation due to fixed point multiplication
+#ifdef DEBUG_UL_PTRS
+  printf("PTRS: INT: Left limit %d, Right limit %d, Loop over %d Symbols \n",
+         start_symbol,end_symbol-1, (end_symbol -start_symbol)-1);
+#endif
+  for(int i =start_symbol; i< end_symbol;i++)
+  {
+    /* Only update when an estimation is found */
+    if( error_est[i*2] != 0 )
+    {
+      /* if found a symbol then set next symbol also */
+      next = nr_ptrs_find_next_estimate(error_est, i, end_symbol);
+      /* left extrapolation, if first estimate value is zero */
+      if( error_est[i*2] == 0 )
+      {
+        leftEdge = 1;
+      }
+      /* right extrapolation, if next is 0 before end symbol */
+      if((next == 0) && (end_symbol > i))
+      {
+        rightEdge = 1;
+        /* special case as no right extrapolation possible with DMRS on left */
+        /* In this case take mean of most recent 2 estimated points */
+        if(prev ==0)
+        {
+          prev = start_symbol -1;
+          next = start_symbol -2;
+          getDiff =1;
+        }else
+        {
+          /* for right edge  previous is second last from right side */
+          next = prev;
+          /* Set the current as recent estimation reference */
+          prev = i;
+        }
+      }
+      /* update  current symbol as prev  for next symbol */
+      if (rightEdge==0)
+        /* Set the current as recent estimation reference */
+        prev = i;
+    }
+    /*extrapolation left side*/
+    if(leftEdge)
+    {
+      distance = next - prev;
+      weight = 1.0/distance;
+      candidates = i;
+      for(int j = 1; j <= candidates; j++)
+      {
+        error_est[(i-j)*2]    = 8 *(((double)(error_est[prev*2]) * scale * (distance + j) * weight) -
+                                    ((double)(error_est[next*2]) * scale * j * weight));
+        error_est[((i-j)*2)+1]= 8 *(((double)(error_est[(prev*2)+1]) * scale* (distance + j) * weight) -
+                                    ((double)(error_est[((next*2)+1)]) * scale * j * weight));
+#ifdef DEBUG_UL_PTRS
+        printf("PTRS: INT: Left Edge i= %d weight= %f %d + j*%d, Prev %d Next %d \n",
+               (i-j),weight, error_est[(i-j)*2],error_est[((i-j)*2)+1], prev,next);
+#endif
+      }
+      leftEdge = 0;
+    }
+    /* extrapolation at right side */
+    else if (rightEdge )
+    {
+      if(getDiff)
+      {
+        error_est[(i+1)*2]    = ((1<<15) +(error_est[prev*2]) - error_est[next*2]);
+        error_est[((i+1)*2)+1]= error_est[(prev*2)+1] - error_est[(next*2)+1];
+#ifdef DEBUG_UL_PTRS
+        printf("PTRS: INT: Right Edge Special Case i= %d weight= %f %d + j*%d, Prev %d Next %d \n",
+               (i+1),weight, error_est[(i+1)*2],error_est[((i+1)*2)+1], prev,next);
+#endif
+        i++;
+      }
+      else
+      {
+        distance = prev - next;
+        candidates = (end_symbol -1) - i;
+        weight = 1.0/distance;
+        for(int j = 1; j <= candidates; j++)
+        {
+          error_est[(i+j)*2]    =  8 *(((double)(error_est[prev*2]) * scale * (distance + j) * weight) -
+                                       ((double)(error_est[next*2]) * scale * j * weight));
+          error_est[((i+j)*2)+1]=  8 *(((double)(error_est[(prev*2)+1]) * scale * (distance + j) * weight) -
+                                       ((double)(error_est[((next*2)+1)]) * scale *j * weight));
+#ifdef DEBUG_UL_PTRS
+          printf("PTRS: INT: Right Edge i= %d weight= %f %d + j*%d, Prev %d Next %d \n",
+                 (i+j),weight, error_est[(i+j)*2],error_est[((i+j)*2)+1], prev,next);
+#endif
+        }
+        if(candidates > 1)
+        {
+          i+=candidates;
+        }
+      }
+    }
+    /* Interpolation between 2 estimated points */
+    else if(next != 0 && ( error_est[2*i] == 0 ))
+    {
+      distance = next - prev;
+      weight = 1.0/distance;
+      candidates = next - i ;
+      for(int j = 0; j < candidates; j++)
+      {
+
+        error_est[(i+j)*2]    = 8 *(((double)(error_est[prev*2]) * scale * (distance - (j+1)) * weight) +
+                                    ((double)(error_est[next*2]) * scale * (j+1) * weight));
+        error_est[((i+j)*2)+1]= 8 *(((double)(error_est[(prev*2)+1]) * scale *(distance - (j+1)) * weight) +
+                                    ((double)(error_est[((next*2)+1)]) * scale *(j+1) * weight));
+#ifdef DEBUG_UL_PTRS
+        printf("PTRS: INT: Interpolation i= %d weight= %f %d + j*%d, Prev %d Next %d\n",
+               (i+j),weight, error_est[(i+j)*2],error_est[((i+j)*2)+1],prev,next);
+#endif
+      }
+      if(candidates > 1)
+      {
+        i+=candidates-1;
+      }
+    }// interpolation
+  }// symbol loop
+}
+
+/* Find the next non zero Real value in a complex vector */
+int nr_ptrs_find_next_estimate(int16_t *error_est,
+                               uint8_t counter,
+                               uint8_t end_symbol)
+{
+  for (int i = counter +1 ; i< end_symbol; i++)
+  {
+    if( error_est[2*i] != 0)
+    {
+      return i;
+    }
+  }
+  return 0;
+}

openair1/PHY/NR_ESTIMATION/nr_ul_estimation.h

@@ -51,4 +51,30 @@ void gNB_I0_measurements(PHY_VARS_gNB *gNB);
 
 int nr_est_timing_advance_pusch(PHY_VARS_gNB* phy_vars_gNB, int UE_id);
 
+
+void nr_pusch_ptrs_processing(PHY_VARS_gNB *gNB,
+                              nfapi_nr_pusch_pdu_t *rel15_ul,
+                              uint8_t ulsch_id,
+                              uint8_t nr_tti_rx,
+                              uint8_t dmrs_symbol_flag,
+                              unsigned char symbol,
+                              uint32_t nb_re_pusch);
+
+void nr_pusch_phase_estimation(NR_DL_FRAME_PARMS *frame_parms,
+                               nfapi_nr_pusch_pdu_t *rel15_ul,
+                               int16_t *ptrs_ch_p,
+                               unsigned char Ns,
+                               unsigned char symbol,
+                               int16_t *rxF_comp,
+                               uint32_t ***ptrs_gold_seq,
+                               int16_t *error_est,
+                               uint16_t  *ptrs_sc);
+
+void nr_pusch_phase_interpolation(int16_t *error_est,
+                                  uint8_t start_symbol,
+                                  uint8_t end_symbol);
+
+int nr_ptrs_find_next_estimate(int16_t *error_est,
+                               uint8_t counter,
+                               uint8_t end_symbol);
 #endif

openair1/PHY/NR_REFSIG/dmrs_nr.c

@@ -362,4 +362,25 @@ void generate_dmrs_pbch(uint32_t dmrs_pbch_bitmap[DMRS_PBCH_I_SSB][DMRS_PBCH_N_H
   free(dmrs_sequence);
 #endif
 }
+/* return the position of next dmrs symbol in a slot */
+int get_next_dmrs_symbol_in_slot(uint16_t  ul_dmrs_symb_pos, uint8_t counter, uint8_t end_symbol)
+{
+  for(uint8_t symbol = counter; symbol < end_symbol; symbol++)
+    if((ul_dmrs_symb_pos >>symbol)&0x01 )
+    {
+      return symbol;
+    }
+  return 0;
+}
+
 
+/* return the total number of dmrs symbol in a slot */
+uint8_t get_dmrs_symbols_in_slot(uint16_t l_prime_mask,  uint16_t nb_symb)
+{
+  uint8_t tmp = 0;
+  for (int i = 0; i < nb_symb; i++)
+  {
+    tmp += (l_prime_mask >> i) & 0x01;
+  }
+  return tmp;
+}

openair1/PHY/NR_REFSIG/nr_dmrs_rx.c

@@ -223,3 +223,27 @@ int nr_pbch_dmrs_rx(int symbol,
   
   return(0);
 }
+
+/*!
+  \brief This function generate gold ptrs sequence for each OFDM symbol
+  \param *in gold sequence for ptrs per OFDM symbol
+  \param length is number of RE in a OFDM symbol
+  \param *output pointer to all ptrs RE in a OFDM symbol
+*/
+void nr_gen_ref_conj_symbols(uint32_t *in, uint32_t length, int16_t *output, uint16_t offset, int mod_order)
+{
+  uint8_t idx, b_idx;
+  for (int i=0; i<length/mod_order; i++)
+    {
+      idx = 0;
+      for (int j=0; j<mod_order; j++)
+        {
+          b_idx = (i*mod_order+j)&0x1f;
+          if (i && (!b_idx))
+            in++;
+          idx ^= (((*in)>>b_idx)&1)<<(mod_order-j-1);
+        }
+      output[i<<1] = nr_rx_mod_table[(offset+idx)<<1];
+      output[(i<<1)+1] =  nr_rx_mod_table[((offset+idx)<<1)+1];
+    }
+}

openair1/PHY/NR_REFSIG/nr_refsig.h

@@ -52,6 +52,9 @@ int nr_pusch_dmrs_rx(PHY_VARS_gNB *gNB,
                      uint8_t dmrs_type);
 
 void init_scrambling_luts(void);
+void nr_gen_ref_conj_symbols(uint32_t *in, uint32_t length, int16_t *output, uint16_t offset, int mod_order);
+uint8_t get_next_dmrs_symbol_in_slot(uint16_t  ul_dmrs_symb_pos, uint8_t counter, uint8_t end_symbol);
+uint8_t get_dmrs_symbols_in_slot(uint16_t l_prime_mask,  uint16_t nb_symb);
 
 void nr_generate_modulation_table(void);
 

openair1/PHY/NR_TRANSPORT/nr_transport_proto.h

@@ -157,7 +157,6 @@ void nr_ulsch_extract_rbs_single(int32_t **rxdataF,
                                  NR_gNB_PUSCH *pusch_vars,
                                  unsigned char symbol,
                                  uint8_t is_dmrs_symbol,
-				 uint8_t is_ptrs_symbol,
                                  nfapi_nr_pusch_pdu_t *pusch_pdu,
                                  NR_DL_FRAME_PARMS *frame_parms);
 

openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c

@@ -226,25 +226,19 @@ void nr_ulsch_extract_rbs_single(int32_t **rxdataF,
                                  NR_gNB_PUSCH *pusch_vars,
                                  unsigned char symbol,
                                  uint8_t is_dmrs_symbol,
-				 uint8_t is_ptrs_symbol,
                                  nfapi_nr_pusch_pdu_t *pusch_pdu,
                                  NR_DL_FRAME_PARMS *frame_parms)
 {
 
   unsigned short start_re, re, nb_re_pusch;
   unsigned char aarx;
-  uint8_t K_ptrs = 0;
   uint32_t rxF_ext_index = 0;
   uint32_t ul_ch0_ext_index = 0;
   uint32_t ul_ch0_index = 0;
-  uint32_t ul_ch0_ptrs_ext_index = 0;
-  uint32_t ul_ch0_ptrs_index = 0;
   uint8_t k_prime;
-  uint16_t n=0, num_ptrs_symbols;
+  uint16_t n;
   int16_t *rxF,*rxF_ext;
   int *ul_ch0,*ul_ch0_ext;
-  int *ul_ch0_ptrs,*ul_ch0_ptrs_ext;
-  uint16_t n_rnti = pusch_pdu->rnti;
   uint8_t delta = 0;
 
 #ifdef DEBUG_RB_EXT
@@ -253,8 +247,8 @@ void nr_ulsch_extract_rbs_single(int32_t **rxdataF,
   printf("--------------------ch_ext_index = %d-----------------------\n", symbol*NR_NB_SC_PER_RB * pusch_pdu->rb_size);
 
 #endif
-  
-  uint8_t is_dmrs_re=0,is_ptrs_re=0;
+
+  uint8_t is_dmrs_re;
   start_re = (frame_parms->first_carrier_offset + (pusch_pdu->rb_start * NR_NB_SC_PER_RB))%frame_parms->ofdm_symbol_size;
   nb_re_pusch = NR_NB_SC_PER_RB * pusch_pdu->rb_size;
 #ifdef __AVX2__
@@ -263,10 +257,8 @@ void nr_ulsch_extract_rbs_single(int32_t **rxdataF,
   int nb_re_pusch2 = nb_re_pusch;
 #endif
 
-  num_ptrs_symbols = 0;
-
   for (aarx = 0; aarx < frame_parms->nb_antennas_rx; aarx++) {
-    
+
     rxF       = (int16_t *)&rxdataF[aarx][symbol * frame_parms->ofdm_symbol_size];
     rxF_ext   = (int16_t *)&pusch_vars->rxdataF_ext[aarx][symbol * nb_re_pusch2]; // [hna] rxdataF_ext isn't contiguous in order to solve an alignment problem ib llr computation in case of mod_order = 4, 6
 
@@ -274,20 +266,17 @@ void nr_ulsch_extract_rbs_single(int32_t **rxdataF,
 
     ul_ch0_ext = &pusch_vars->ul_ch_estimates_ext[aarx][symbol*nb_re_pusch2];
 
-    ul_ch0_ptrs     = &pusch_vars->ul_ch_ptrs_estimates[aarx][pusch_vars->ptrs_symbol_index*frame_parms->ofdm_symbol_size]; // update channel estimates if new dmrs symbol are available
-
-    ul_ch0_ptrs_ext = &pusch_vars->ul_ch_ptrs_estimates_ext[aarx][symbol*nb_re_pusch];
-
     n = 0;
     k_prime = 0;
 
-    if (is_dmrs_symbol == 0 && is_ptrs_symbol == 0) {
+    if (is_dmrs_symbol == 0) {
       //
       //rxF[ ((start_re + re)*2)      % (frame_parms->ofdm_symbol_size*2)]);
-      if (start_re + nb_re_pusch < frame_parms->ofdm_symbol_size) memcpy1((void*)rxF_ext,
-									 (void*)&rxF[start_re*2],
-									 nb_re_pusch*sizeof(int32_t));
-      else {
+      if (start_re + nb_re_pusch < frame_parms->ofdm_symbol_size) {
+        memcpy1((void*)rxF_ext,
+                (void*)&rxF[start_re*2],
+                nb_re_pusch*sizeof(int32_t));
+      } else {
 	int neg_length = frame_parms->ofdm_symbol_size-start_re;
 	int pos_length = nb_re_pusch-neg_length;
 
@@ -298,58 +287,36 @@ void nr_ulsch_extract_rbs_single(int32_t **rxdataF,
     }
     else {
       for (re = 0; re < nb_re_pusch; re++) {
-	
-	if (is_dmrs_symbol) is_dmrs_re = (re == get_dmrs_freq_idx_ul(n, k_prime, delta, pusch_pdu->dmrs_config_type));
-	
-	if (is_ptrs_symbol) {
-	  K_ptrs = (pusch_pdu->pusch_ptrs.ptrs_freq_density)?4:2;
-	  is_ptrs_re = is_ptrs_subcarrier((start_re + re) % frame_parms->ofdm_symbol_size,
-					  n_rnti,
-					  aarx,
-					  pusch_pdu->dmrs_config_type,
-					  K_ptrs,
-					  pusch_pdu->rb_size,
-					  pusch_pdu->pusch_ptrs.ptrs_ports_list[0].ptrs_re_offset,
-					  start_re,
-					  frame_parms->ofdm_symbol_size);
-	  
-	  num_ptrs_symbols+=is_ptrs_re;
-	  
-	}
-	
+
+        is_dmrs_re = (re == get_dmrs_freq_idx_ul(n, k_prime, delta, pusch_pdu->dmrs_config_type));
+
 #ifdef DEBUG_RB_EXT
-	printf("re = %d, kprime %d, n %d, is_ptrs_symbol = %d, symbol = %d\n", re, k_prime,n,is_ptrs_symbol, symbol);
+        printf("re = %d, kprime %d, n %d, is_dmrs_symbol = %d, symbol = %d\n", re, k_prime, n, is_dmrs_symbol, symbol);
 #endif
 
-	if ( is_dmrs_re == 0 && is_ptrs_re == 0) {
-	  
-	  rxF_ext[rxF_ext_index]     = (rxF[ ((start_re + re)*2)      % (frame_parms->ofdm_symbol_size*2)]);
-	  rxF_ext[rxF_ext_index + 1] = (rxF[(((start_re + re)*2) + 1) % (frame_parms->ofdm_symbol_size*2)]);
-	  ul_ch0_ext[ul_ch0_ext_index] = ul_ch0[ul_ch0_index];
-	  ul_ch0_ptrs_ext[ul_ch0_ptrs_ext_index] = ul_ch0_ptrs[ul_ch0_ptrs_index];
-	  
+        /* save only data and respective channel estimates */
+        if (is_dmrs_re == 0) {
+          rxF_ext[rxF_ext_index]     = (rxF[ ((start_re + re)*2)      % (frame_parms->ofdm_symbol_size*2)]);
+          rxF_ext[rxF_ext_index + 1] = (rxF[(((start_re + re)*2) + 1) % (frame_parms->ofdm_symbol_size*2)]);
+          ul_ch0_ext[ul_ch0_ext_index] = ul_ch0[ul_ch0_index];
+
 #ifdef DEBUG_RB_EXT
-	  printf("dmrs symb %d: rxF_ext[%d] = (%d,%d), ul_ch0_ext[%d] = (%d,%d)\n", 
-		 is_dmrs_symbol,rxF_ext_index>>1, rxF_ext[rxF_ext_index],rxF_ext[rxF_ext_index+1],
-		 ul_ch0_ext_index,  ((int16_t*)&ul_ch0_ext[ul_ch0_ext_index])[0],  ((int16_t*)&ul_ch0_ext[ul_ch0_ext_index])[1]);
+          printf("dmrs symb %d: rxF_ext[%d] = (%d,%d), ul_ch0_ext[%d] = (%d,%d)\n",
+                 is_dmrs_symbol,rxF_ext_index>>1, rxF_ext[rxF_ext_index],rxF_ext[rxF_ext_index+1],
+                 ul_ch0_ext_index,  ((int16_t*)&ul_ch0_ext[ul_ch0_ext_index])[0],  ((int16_t*)&ul_ch0_ext[ul_ch0_ext_index])[1]);
 #endif
-	  ul_ch0_ext_index++;
-	  ul_ch0_ptrs_ext_index++;
-	  rxF_ext_index +=2;
-	} else {
-	  k_prime++;
-	  k_prime&=1;
-	  n+=(k_prime)?0:1;
-	}
-	ul_ch0_index++;
-	ul_ch0_ptrs_index++;
+          ul_ch0_ext_index++;
+          rxF_ext_index +=2;
+        } else {
+          n += k_prime;
+          k_prime ^= 1;
+        }
+        ul_ch0_index++;
       }
-    } // is_dmrs_symbol ==0 && is_ptrs_symbol == 0
-  }  
-  pusch_vars->ptrs_sc_per_ofdm_symbol = num_ptrs_symbols;
-    
+    }
+  }
 }
-  
+
 void nr_ulsch_scale_channel(int **ul_ch_estimates_ext,
                             NR_DL_FRAME_PARMS *frame_parms,
                             NR_gNB_ULSCH_t **ulsch_gNB,
@@ -1116,34 +1083,17 @@ int nr_rx_pusch(PHY_VARS_gNB *gNB,
 {
 
   uint8_t aarx, aatx, dmrs_symbol_flag; // dmrs_symbol_flag, a flag to indicate DMRS REs in current symbol
-  uint8_t ptrs_symbol_flag; // a flag to indicate PTRS REs in current symbol
   uint32_t nb_re_pusch, bwp_start_subcarrier;
-  uint8_t L_ptrs = 0; // PTRS parameter
   int avgs;
   int avg[4];
   NR_DL_FRAME_PARMS *frame_parms = &gNB->frame_parms;
   nfapi_nr_pusch_pdu_t *rel15_ul = &gNB->ulsch[ulsch_id][0]->harq_processes[harq_pid]->ulsch_pdu;
 
   dmrs_symbol_flag = 0;
-  ptrs_symbol_flag = 0;
-
-  gNB->pusch_vars[ulsch_id]->ptrs_sc_per_ofdm_symbol = 0;
 
   if(symbol == rel15_ul->start_symbol_index){
-    gNB->pusch_vars[ulsch_id]->rxdataF_ext_offset = 0;
     gNB->pusch_vars[ulsch_id]->dmrs_symbol = 0;
     gNB->pusch_vars[ulsch_id]->cl_done = 0;
-    gNB->pusch_vars[ulsch_id]->ptrs_symbols = 0;
-
-    if (rel15_ul->pdu_bit_map & PUSCH_PDU_BITMAP_PUSCH_PTRS) {  // if there is ptrs pdu
-      L_ptrs = 1<<(rel15_ul->pusch_ptrs.ptrs_time_density);
-
-      set_ptrs_symb_idx(&gNB->pusch_vars[ulsch_id]->ptrs_symbols,
-                        rel15_ul->nr_of_symbols,
-                        rel15_ul->start_symbol_index,
-                        L_ptrs,
-                        rel15_ul->ul_dmrs_symb_pos);
-    }
   }
 
 
@@ -1172,13 +1122,6 @@ int nr_rx_pusch(PHY_VARS_gNB *gNB,
     nb_re_pusch = rel15_ul->rb_size * NR_NB_SC_PER_RB;
   }
 
-  if (rel15_ul->pdu_bit_map & PUSCH_PDU_BITMAP_PUSCH_PTRS) {  // if there is ptrs pdu
-    if(is_ptrs_symbol(symbol, gNB->pusch_vars[ulsch_id]->ptrs_symbols)) {
-      gNB->pusch_vars[ulsch_id]->ptrs_symbol_index = symbol;
-      ptrs_symbol_flag = 1;
-    }
-  }
-
   //----------------------------------------------------------
   //--------------------- Channel estimation ---------------------
   //----------------------------------------------------------
@@ -1206,16 +1149,21 @@ int nr_rx_pusch(PHY_VARS_gNB *gNB,
 
   if (nb_re_pusch > 0) {
 
+    gNB->pusch_vars[ulsch_id]->ul_valid_re_per_slot[symbol] = nb_re_pusch;
+
     start_meas(&gNB->ulsch_rbs_extraction_stats);
     nr_ulsch_extract_rbs_single(gNB->common_vars.rxdataF,
                                 gNB->pusch_vars[ulsch_id],
                                 symbol,
                                 dmrs_symbol_flag,
-				ptrs_symbol_flag,
                                 rel15_ul,
                                 frame_parms);
     stop_meas(&gNB->ulsch_rbs_extraction_stats);
 
+    //----------------------------------------------------------
+    //--------------------- Channel Scaling --------------------
+    //----------------------------------------------------------
+
     nr_ulsch_scale_channel(gNB->pusch_vars[ulsch_id]->ul_ch_estimates_ext,
                            frame_parms,
                            gNB->ulsch[ulsch_id],
@@ -1244,6 +1192,10 @@ int nr_rx_pusch(PHY_VARS_gNB *gNB,
       gNB->pusch_vars[ulsch_id]->cl_done = 1;
     }
 
+    //----------------------------------------------------------
+    //--------------------- Channel Compensation ---------------
+    //----------------------------------------------------------
+
     start_meas(&gNB->ulsch_channel_compensation_stats);
     nr_ulsch_channel_compensation(gNB->pusch_vars[ulsch_id]->rxdataF_ext,
                                   gNB->pusch_vars[ulsch_id]->ul_ch_estimates_ext,
@@ -1271,29 +1223,54 @@ int nr_rx_pusch(PHY_VARS_gNB *gNB,
     nr_idft(&((uint32_t*)gNB->pusch_vars[ulsch_id]->rxdataF_ext[0])[symbol * rel15_ul->rb_size * NR_NB_SC_PER_RB], nb_re_pusch);
 #endif
 
-  //----------------------------------------------------------
-  //-------------------- LLRs computation --------------------
-  //----------------------------------------------------------
-    start_meas(&gNB->ulsch_llr_stats);
-    AssertFatal(gNB->pusch_vars[ulsch_id]->rxdataF_ext_offset * rel15_ul->qam_mod_order+nb_re_pusch*rel15_ul->qam_mod_order < (8*((3*8*6144)+12)) , "Mysterious llr buffer size check");
+
+    //----------------------------------------------------------
+    //--------------------- PTRS Processing --------------------
+    //----------------------------------------------------------
+
+    /* In case PTRS is enabled then LLR will be calculated after PTRS symbols are processed *
+     * otherwise LLR are calculated for each symbol based upon DMRS channel estimates only. */
+    if (rel15_ul->pdu_bit_map & PUSCH_PDU_BITMAP_PUSCH_PTRS)
+    {
+      start_meas(&gNB->ulsch_ptrs_processing_stats);
+      nr_pusch_ptrs_processing(gNB,
+                               rel15_ul,
+                               ulsch_id,
+                               nr_tti_rx,
+                               dmrs_symbol_flag,
+                               symbol,
+                               nb_re_pusch);
+      stop_meas(&gNB->ulsch_ptrs_processing_stats);
+
+      /*  Subtract total PTRS RE's in the symbol from PUSCH RE's */
+      gNB->pusch_vars[ulsch_id]->ul_valid_re_per_slot[symbol] -= gNB->pusch_vars[ulsch_id]->ptrs_sc_per_ofdm_symbol;
+    }
+
+    /*---------------------------------------------------------------------------------------------------- */
+    /*--------------------  LLRs computation  -------------------------------------------------------------*/
+    /*-----------------------------------------------------------------------------------------------------*/
+    if(symbol == (rel15_ul->start_symbol_index + rel15_ul->nr_of_symbols -1))
+    {
 #ifdef __AVX2__
-    int off = ((rel15_ul->rb_size&1) == 1)? 4:0;
+      int off = ((rel15_ul->rb_size&1) == 1)? 4:0;
 #else
-    int off = 0;
+      int off = 0;
 #endif
-    nr_ulsch_compute_llr(&gNB->pusch_vars[ulsch_id]->rxdataF_comp[0][symbol * (off+(rel15_ul->rb_size * NR_NB_SC_PER_RB))],
-                         gNB->pusch_vars[ulsch_id]->ul_ch_mag0,
-                         gNB->pusch_vars[ulsch_id]->ul_ch_magb0,
-                         &gNB->pusch_vars[ulsch_id]->llr[gNB->pusch_vars[ulsch_id]->rxdataF_ext_offset * rel15_ul->qam_mod_order],
-                         rel15_ul->rb_size,
-                         nb_re_pusch,
-                         symbol,
-                         rel15_ul->qam_mod_order);
-    stop_meas(&gNB->ulsch_llr_stats);
-
+      uint32_t rxdataF_ext_offset = 0;
+      for(uint8_t i =rel15_ul->start_symbol_index; i< (rel15_ul->start_symbol_index + rel15_ul->nr_of_symbols);i++) {
+        start_meas(&gNB->ulsch_llr_stats);
+        nr_ulsch_compute_llr(&gNB->pusch_vars[ulsch_id]->rxdataF_comp[0][i * (off + rel15_ul->rb_size * NR_NB_SC_PER_RB)],
+                             gNB->pusch_vars[ulsch_id]->ul_ch_mag0,
+                             gNB->pusch_vars[ulsch_id]->ul_ch_magb0,
+                             &gNB->pusch_vars[ulsch_id]->llr[rxdataF_ext_offset * rel15_ul->qam_mod_order],
+                             rel15_ul->rb_size,
+                             gNB->pusch_vars[ulsch_id]->ul_valid_re_per_slot[i],
+                             i,
+                             rel15_ul->qam_mod_order);
+        stop_meas(&gNB->ulsch_llr_stats);
+        rxdataF_ext_offset += gNB->pusch_vars[ulsch_id]->ul_valid_re_per_slot[i];
+      }// symbol loop
+    }// last symbol check
   }
-
-  gNB->pusch_vars[ulsch_id]->rxdataF_ext_offset = gNB->pusch_vars[ulsch_id]->rxdataF_ext_offset +  nb_re_pusch;
   return (0);
-
 }

openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c

@@ -226,12 +226,12 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
   /////////////////////////PTRS parameters' initialization/////////////////////////
   ///////////
 
-  int16_t mod_ptrs[(nb_rb/2)*(NR_SYMBOLS_PER_SLOT-1)*2]; // assume maximum number of PTRS per pusch allocation
+  int16_t mod_ptrs[nb_rb] __attribute((aligned(16))); // assume maximum number of PTRS per pusch allocation
   K_ptrs = 0; // just to avoid a warning
 
   if (harq_process_ul_ue->pusch_pdu.pdu_bit_map & PUSCH_PDU_BITMAP_PUSCH_PTRS) {
 
-    K_ptrs = (harq_process_ul_ue->pusch_pdu.pusch_ptrs.ptrs_freq_density)?4:2;
+    K_ptrs = harq_process_ul_ue->pusch_pdu.pusch_ptrs.ptrs_freq_density;
     L_ptrs = 1<<harq_process_ul_ue->pusch_pdu.pusch_ptrs.ptrs_time_density;
 
     beta_ptrs = 1; // temp value until power control is implemented
@@ -322,7 +322,7 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
     uint16_t m=0, n=0, dmrs_idx=0, ptrs_idx = 0;
 
     for (l=start_symbol; l<start_symbol+number_of_symbols; l++) {
-
+      ptrs_idx = 0; // every PTRS symbol has a new gold sequence
       k = start_sc;
       n = 0;
       dmrs_idx = 0;

openair1/PHY/defs_gNB.h

@@ -397,8 +397,6 @@ typedef struct {
   /// - first index: rx antenna id [0..nb_antennas_rx[
   /// - second index (definition from phy_init_lte_eNB()): ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[
   int32_t **rxdataF_ext2;
-  /// \brief Offset for calculating the index of rxdataF_ext for the current symbol
-  uint32_t rxdataF_ext_offset;
   /// \brief Hold the channel estimates in time domain based on DRS.
   /// - first index: rx antenna id [0..nb_antennas_rx[
   /// - second index: ? [0..4*ofdm_symbol_size[
@@ -466,6 +464,13 @@ typedef struct {
   uint16_t ptrs_symbols;
   // PTRS subcarriers per OFDM symbol
   uint16_t ptrs_sc_per_ofdm_symbol;
+  /// \brief Estimated phase error based upon PTRS on each symbol .
+  /// - first index: ? [0..7] Number of Antenna
+  /// - second index: ? [0...14] smybol per slot
+  int32_t **ptrs_phase_per_slot;
+  /// \brief Total RE count after DMRS/PTRS RE's are extracted from respective symbol.
+  /// - first index: ? [0...14] smybol per slot
+  int16_t *ul_valid_re_per_slot;
   /// flag to verify if channel level computation is done
   uint8_t cl_done;
 } NR_gNB_PUSCH;
@@ -807,10 +812,12 @@ typedef struct PHY_VARS_gNB_s {
   time_stats_t ulsch_deinterleaving_stats;
   time_stats_t ulsch_unscrambling_stats;
   time_stats_t ulsch_channel_estimation_stats;
+  time_stats_t ulsch_ptrs_processing_stats;
   time_stats_t ulsch_channel_compensation_stats;
   time_stats_t ulsch_rbs_extraction_stats;
   time_stats_t ulsch_mrc_stats;
   time_stats_t ulsch_llr_stats;
+
   /*
   time_stats_t rx_dft_stats;
   time_stats_t ulsch_freq_offset_estimation_stats;

openair1/SIMULATION/NR_PHY/ulsim.c

@@ -165,6 +165,13 @@ int main(int argc, char **argv)
   //float eff_tp_check = 0.7;
   uint8_t snrRun;
 
+  int enable_ptrs = 0;
+  int modify_dmrs = 0;
+  /* L_PTRS = ptrs_arg[0], K_PTRS = ptrs_arg[1] */
+  int ptrs_arg[2] = {-1,-1};// Invalid values
+  /* DMRS TYPE = dmrs_arg[0], Add Pos = dmrs_arg[1] */
+  int dmrs_arg[2] = {-1,-1};// Invalid values
+
   UE_nr_rxtx_proc_t UE_proc;
   FILE *scg_fd=NULL;
   int file_offset = 0;
@@ -181,7 +188,7 @@ int main(int argc, char **argv)
   //logInit();
   randominit(0);
 
-  while ((c = getopt(argc, argv, "a:b:c:d:ef:g:h:i:j:kl:m:n:p:r:s:y:z:F:M:N:PR:S:L:G:H:")) != -1) {
+  while ((c = getopt(argc, argv, "a:b:c:d:ef:g:h:i:j:kl:m:n:p:r:s:y:z:F:G:H:M:N:PR:S:T:U:L:")) != -1) {
     printf("handling optarg %c\n",c);
     switch (c) {
 
@@ -359,7 +366,15 @@ int main(int argc, char **argv)
       }
       
       break;
-      
+
+    case 'G':
+      file_offset = atoi(optarg);
+      break;
+
+    case 'H':
+      slot = atoi(optarg);
+      break;
+
     case 'M':
      // SSB_positions = atoi(optarg);
       break;
@@ -388,14 +403,20 @@ int main(int argc, char **argv)
       loglvl = atoi(optarg);
       break;
 
-    case 'G':
-      file_offset = atoi(optarg);
+   case 'T':
+      enable_ptrs=1;
+      for(i=0; i < atoi(optarg); i++){
+        ptrs_arg[i] = atoi(argv[optind++]);
+      }
       break;
 
-    case 'H':
-      slot = atoi(optarg);
+    case 'U':
+      modify_dmrs = 1;
+      for(i=0; i < atoi(optarg); i++){
+        dmrs_arg[i] = atoi(argv[optind++]);
+      }
       break;
-  
+
     default:
     case 'h':
       printf("%s -h(elp) -p(extended_prefix) -N cell_id -f output_filename -F input_filename -g channel_model -n n_frames -t Delayspread -s snr0 -S snr1 -x transmission_mode -y TXant -z RXant -i Intefrence0 -j Interference1 -A interpolation_file -C(alibration offset dB) -N CellId\n", argv[0]);
@@ -425,6 +446,8 @@ int main(int argc, char **argv)
       printf("-t Acceptable effective throughput (in percentage)\n");
       printf("-S Ending SNR, runs from SNR0 to SNR1\n");
       printf("-P Print ULSCH performances\n");
+      printf("-T Enable PTRS, arguments list L_PTRS{0,1,2} K_PTRS{2,4}, e.g. -T 2 0 2 \n");
+      printf("-U Change DMRS Config, arguments list DMRS TYPE{0=A,1=B} DMRS AddPos{0:3}, e.g. -U 2 0 2 \n");
       exit(-1);
       break;
 
@@ -469,7 +492,7 @@ int main(int argc, char **argv)
   UE2gNB->max_Doppler = maxDoppler;
 
   RC.gNB = (PHY_VARS_gNB **) malloc(sizeof(PHY_VARS_gNB *));
-  RC.gNB[0] = malloc(sizeof(PHY_VARS_gNB));
+  RC.gNB[0] = calloc(1,sizeof(PHY_VARS_gNB));
   gNB = RC.gNB[0];
   //gNB_config = &gNB->gNB_config;
 
@@ -513,7 +536,7 @@ int main(int argc, char **argv)
 				  0);
   fix_scc(scc,ssb_bitmap);
 
-  xer_fprint(stdout, &asn_DEF_NR_CellGroupConfig, (const void*)secondaryCellGroup);
+  // xer_fprint(stdout, &asn_DEF_NR_CellGroupConfig, (const void*)secondaryCellGroup);
 
   AssertFatal((gNB->if_inst         = NR_IF_Module_init(0))!=NULL,"Cannot register interface");
 
@@ -607,13 +630,9 @@ int main(int argc, char **argv)
 
   nr_scheduled_response_t scheduled_response;
   fapi_nr_ul_config_request_t ul_config;
+  fapi_nr_tx_request_t tx_req;
+  fapi_nr_tx_request_body_t tx_req_body;
 
-  unsigned int TBS;
-  uint16_t number_dmrs_symbols = 0;
-  unsigned int available_bits;
-  uint8_t nb_re_dmrs;
-  unsigned char mod_order;
-  uint16_t code_rate;
   uint8_t ptrs_mcs1 = 2;
   uint8_t ptrs_mcs2 = 4;
   uint8_t ptrs_mcs3 = 10;
@@ -624,23 +643,74 @@ int main(int argc, char **argv)
   uint8_t max_rounds = 4;
   uint8_t crc_status = 0;
 
-  uint8_t length_dmrs = pusch_len1; // [hna] remove dmrs struct
-  uint16_t l_prime_mask = get_l_prime(nb_symb_sch, typeB, pusch_dmrs_pos0, length_dmrs);  // [hna] remove dmrs struct
+  unsigned char mod_order = nr_get_Qm_ul(Imcs, 0);
+  uint16_t      code_rate = nr_get_code_rate_ul(Imcs, 0);
+
+  uint8_t mapping_type = typeB; // Default Values
+  pusch_dmrs_type_t dmrs_config_type = pusch_dmrs_type1; // Default Values
+  pusch_dmrs_AdditionalPosition_t add_pos = pusch_dmrs_pos0; // Default Values
+
+  /* validate parameters othwerwise default values are used */
+  /* -U flag can be used to set DMRS parameters*/
+  if(modify_dmrs)
+  {
+    if(dmrs_arg[0] == 0)
+    {
+      mapping_type = typeA;
+    }
+    else if (dmrs_arg[0] == 1)
+    {
+      mapping_type = typeB;
+    }
+    /* Additional DMRS positions */
+    if(dmrs_arg[1] >= 0 && dmrs_arg[1] <=3 )
+    {
+      add_pos = dmrs_arg[1];
+    }
+    printf("NOTE: DMRS config is modified with Mapping Type %d , Additional Position %d \n", mapping_type, add_pos );
+  }
+
+  uint8_t  length_dmrs         = pusch_len1;
+  uint16_t l_prime_mask        = get_l_prime(nb_symb_sch, mapping_type, add_pos, length_dmrs);
+  uint16_t number_dmrs_symbols = get_dmrs_symbols_in_slot(l_prime_mask, nb_symb_sch);
+  uint8_t  nb_re_dmrs          = (dmrs_config_type == pusch_dmrs_type1) ? 6 : 4;
+  unsigned int available_bits  = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, number_dmrs_symbols, mod_order, 1);
+  unsigned int TBS             = nr_compute_tbs(mod_order, code_rate, nb_rb, nb_symb_sch, nb_re_dmrs * number_dmrs_symbols, 0, 0, precod_nbr_layers);
+
+  uint8_t ulsch_input_buffer[TBS/8];
+
+  ulsch_input_buffer[0] = 0x31;
+  for (i = 1; i < TBS/8; i++) {
+    ulsch_input_buffer[i] = (unsigned char) rand();
+  }
+
   uint8_t ptrs_time_density = get_L_ptrs(ptrs_mcs1, ptrs_mcs2, ptrs_mcs3, Imcs, mcs_table);
   uint8_t ptrs_freq_density = get_K_ptrs(n_rb0, n_rb1, nb_rb);
+  int     ptrs_symbols      = 0; // to calculate total PTRS RE's in a slot
+
+  double ts = 1.0/(frame_parms->subcarrier_spacing * frame_parms->ofdm_symbol_size);
+
+  /* -T option enable PTRS */
+  if(enable_ptrs)
+  {
+    /* validate parameters othwerwise default values are used */
+    if(ptrs_arg[0] == 0 || ptrs_arg[0] == 1 || ptrs_arg[0] == 2 )
+    {
+      ptrs_time_density = ptrs_arg[0];
+    }
+    if(ptrs_arg[1] == 2 || ptrs_arg[1] == 4 )
+    {
+      ptrs_freq_density = ptrs_arg[1];
+    }
+    pdu_bit_map |= PUSCH_PDU_BITMAP_PUSCH_PTRS;
+    printf("NOTE: PTRS Enabled with L %d, K %d \n", ptrs_time_density, ptrs_freq_density );
+  }
 
   if (input_fd != NULL) max_rounds=1;
 
   if(1<<ptrs_time_density >= nb_symb_sch)
     pdu_bit_map &= ~PUSCH_PDU_BITMAP_PUSCH_PTRS; // disable PUSCH PTRS
 
-  for (i = 0; i < nb_symb_sch; i++) {
-    number_dmrs_symbols += (l_prime_mask >> i) & 0x01;
-  }
-
-  mod_order      = nr_get_Qm_ul(Imcs, 0);
-  code_rate      = nr_get_code_rate_ul(Imcs, 0);
-
   printf("\n");
 
   //for (int i=0;i<16;i++) printf("%f\n",gaussdouble(0.0,1.0));
@@ -715,6 +785,7 @@ int main(int argc, char **argv)
       reset_meas(&gNB->ulsch_ldpc_decoding_stats);
       reset_meas(&gNB->ulsch_unscrambling_stats);
       reset_meas(&gNB->ulsch_channel_estimation_stats);
+      reset_meas(&gNB->ulsch_ptrs_processing_stats);
       reset_meas(&gNB->ulsch_llr_stats);
       reset_meas(&gNB->ulsch_mrc_stats);
       reset_meas(&gNB->ulsch_channel_compensation_stats);
@@ -723,23 +794,6 @@ int main(int argc, char **argv)
       UE_proc.nr_tti_tx = slot;
       UE_proc.frame_tx = frame;
 
-      // --------- setting parameters for gNB --------
-      /*
-      rel15_ul->rnti                           = n_rnti;
-      rel15_ul->ulsch_pdu_rel15.start_rb       = start_rb;
-      rel15_ul->ulsch_pdu_rel15.number_rbs     = nb_rb;
-      rel15_ul->ulsch_pdu_rel15.start_symbol   = start_symbol;
-      rel15_ul->ulsch_pdu_rel15.number_symbols = nb_symb_sch;
-      rel15_ul->ulsch_pdu_rel15.length_dmrs    = length_dmrs;
-      rel15_ul->ulsch_pdu_rel15.Qm             = mod_order;
-      rel15_ul->ulsch_pdu_rel15.mcs            = Imcs;
-      rel15_ul->ulsch_pdu_rel15.rv             = 0;
-      rel15_ul->ulsch_pdu_rel15.ndi            = 0;
-      rel15_ul->ulsch_pdu_rel15.n_layers       = precod_nbr_layers;
-      rel15_ul->ulsch_pdu_rel15.R              = code_rate; 
-      ///////////////////////////////////////////////////
-      */
-
       UL_tti_req->SFN = frame;
       UL_tti_req->Slot = slot;
       UL_tti_req->n_pdus = 1;
@@ -766,6 +820,7 @@ int main(int argc, char **argv)
 	pusch_pdu->bwp_size = abwp_size;
       }
 
+      pusch_pdu->pusch_data.tb_size = TBS/8;
       pusch_pdu->pdu_bit_map = pdu_bit_map;
       pusch_pdu->rnti = n_rnti;
       pusch_pdu->mcs_index = Imcs;
@@ -776,7 +831,7 @@ int main(int argc, char **argv)
       pusch_pdu->data_scrambling_id = *scc->physCellId;
       pusch_pdu->nrOfLayers = 1;
       pusch_pdu->ul_dmrs_symb_pos = l_prime_mask << start_symbol;
-      pusch_pdu->dmrs_config_type = 0;
+      pusch_pdu->dmrs_config_type = dmrs_config_type;
       pusch_pdu->ul_dmrs_scrambling_id =  *scc->physCellId;
       pusch_pdu->scid = 0;
       pusch_pdu->dmrs_ports = 1;
@@ -809,8 +864,17 @@ int main(int argc, char **argv)
       scheduled_response.slot = slot;
       scheduled_response.dl_config = NULL;
       scheduled_response.ul_config = &ul_config;
-      scheduled_response.tx_request = (fapi_nr_tx_request_t *) malloc(sizeof(fapi_nr_tx_request_t));
-      scheduled_response.tx_request->tx_request_body = (fapi_nr_tx_request_body_t *) malloc(sizeof(fapi_nr_tx_request_body_t));
+      scheduled_response.tx_request = &tx_req;
+      scheduled_response.tx_request->tx_request_body = &tx_req_body;
+
+      // Config UL TX PDU
+      tx_req.slot = slot;
+      tx_req.sfn = frame;
+      // tx_req->tx_config // TbD
+      tx_req.number_of_pdus = 1;
+      tx_req_body.pdu_length = TBS/8;
+      tx_req_body.pdu_index = 0;
+      tx_req_body.pdu = &ulsch_input_buffer[0];
 
       ul_config.slot = slot;
       ul_config.number_pdus = 1;
@@ -822,27 +886,22 @@ int main(int argc, char **argv)
       ul_config.ul_config_list[0].pusch_config_pdu.nr_of_symbols = nb_symb_sch;
       ul_config.ul_config_list[0].pusch_config_pdu.start_symbol_index = start_symbol;
       ul_config.ul_config_list[0].pusch_config_pdu.ul_dmrs_symb_pos = l_prime_mask << start_symbol;
-      ul_config.ul_config_list[0].pusch_config_pdu.dmrs_config_type = 0;
+      ul_config.ul_config_list[0].pusch_config_pdu.dmrs_config_type = dmrs_config_type;
       ul_config.ul_config_list[0].pusch_config_pdu.mcs_index = Imcs;
       ul_config.ul_config_list[0].pusch_config_pdu.mcs_table = mcs_table;
-      ul_config.ul_config_list[0].pusch_config_pdu.num_dmrs_cdm_grps_no_data = 1;
+      ul_config.ul_config_list[0].pusch_config_pdu.num_dmrs_cdm_grps_no_data = msg3_flag == 0 ? 1 : 2;
+      ul_config.ul_config_list[0].pusch_config_pdu.nrOfLayers = precod_nbr_layers;
+      ul_config.ul_config_list[0].pusch_config_pdu.absolute_delta_PUSCH = 0;
+
+      ul_config.ul_config_list[0].pusch_config_pdu.pusch_data.tb_size = TBS;
       ul_config.ul_config_list[0].pusch_config_pdu.pusch_data.new_data_indicator = trial & 0x1;
       ul_config.ul_config_list[0].pusch_config_pdu.pusch_data.rv_index = rv_index;
-      ul_config.ul_config_list[0].pusch_config_pdu.nrOfLayers = precod_nbr_layers;
       ul_config.ul_config_list[0].pusch_config_pdu.pusch_data.harq_process_id = harq_pid;
+
       ul_config.ul_config_list[0].pusch_config_pdu.pusch_ptrs.ptrs_time_density = ptrs_time_density;
       ul_config.ul_config_list[0].pusch_config_pdu.pusch_ptrs.ptrs_freq_density = ptrs_freq_density;
       ul_config.ul_config_list[0].pusch_config_pdu.pusch_ptrs.ptrs_ports_list   = (nfapi_nr_ue_ptrs_ports_t *) malloc(2*sizeof(nfapi_nr_ue_ptrs_ports_t));
       ul_config.ul_config_list[0].pusch_config_pdu.pusch_ptrs.ptrs_ports_list[0].ptrs_re_offset = 0;
-      //there are plenty of other parameters that we don't seem to be using for now. e.g.
-      ul_config.ul_config_list[0].pusch_config_pdu.absolute_delta_PUSCH = 0;
-
-      nb_re_dmrs = ((ul_config.ul_config_list[0].pusch_config_pdu.dmrs_config_type == pusch_dmrs_type1) ? 6 : 4);
-
-      available_bits = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, number_dmrs_symbols, mod_order, 1);
-      TBS            = nr_compute_tbs(mod_order, code_rate, nb_rb, nb_symb_sch, nb_re_dmrs * number_dmrs_symbols, 0, 0, precod_nbr_layers);
-      pusch_pdu->pusch_data.tb_size = TBS>>3;
-      ul_config.ul_config_list[0].pusch_config_pdu.pusch_data.tb_size = TBS;
 
       nr_fill_ulsch(gNB,frame,slot,pusch_pdu);
 
@@ -905,10 +964,15 @@ int main(int argc, char **argv)
 	  for (ap=0; ap<frame_parms->nb_antennas_rx; ap++) {
 	    ((int16_t*) &gNB->common_vars.rxdata[ap][slot_offset])[(2*i) + (delay*2)]   = (int16_t)((tx_gain*r_re[ap][i])   + (sqrt(sigma/2)*gaussdouble(0.0,1.0))); // convert to fixed point
 	    ((int16_t*) &gNB->common_vars.rxdata[ap][slot_offset])[(2*i)+1 + (delay*2)]   = (int16_t)((tx_gain*r_im[ap][i]) + (sqrt(sigma/2)*gaussdouble(0.0,1.0)));
+            /* Add phase noise if enabled */
+            if (pdu_bit_map & PUSCH_PDU_BITMAP_PUSCH_PTRS) {
+              phase_noise(ts, &((int16_t*)&gNB->common_vars.rxdata[ap][slot_offset])[(2*i)],
+                          &((int16_t*)&gNB->common_vars.rxdata[ap][slot_offset])[(2*i)+1]);
+            }
 	  }
 	}
-	
-	}
+
+      }
 
 	////////////////////////////////////////////////////////////
 	
@@ -963,6 +1027,20 @@ int main(int argc, char **argv)
 	}
 	if(n_trials==1) printf("end of round %d rv_index %d\n",round, rv_index);
 
+        //----------------------------------------------------------
+        //----------------- count and print errors -----------------
+        //----------------------------------------------------------
+
+        if ((pusch_pdu->pdu_bit_map & PUSCH_PDU_BITMAP_PUSCH_PTRS) && (SNR==snr0) && (trial==0) && (round==0)) {
+            ptrs_symbols = 0;
+            for (int i = pusch_pdu->start_symbol_index; i < pusch_pdu->start_symbol_index + pusch_pdu->nr_of_symbols; i++){
+               ptrs_symbols += ((gNB->pusch_vars[UE_id]->ptrs_symbols) >> i) & 1;
+            }
+            /*  2*5*(50/2), for RB = 50,K = 2 for 5 OFDM PTRS symbols */
+            available_bits -= 2 * ptrs_symbols * ((nb_rb + ptrs_freq_density - 1) /ptrs_freq_density);
+            printf("After PTRS subtraction available_bits are : %u \n", available_bits);
+        }
+
 	for (i = 0; i < available_bits; i++) {
 	  
 	  if(((ulsch_ue[0]->g[i] == 0) && (gNB->pusch_vars[UE_id]->llr[i] <= 0)) ||
@@ -977,12 +1055,6 @@ int main(int argc, char **argv)
 
     } // round
     
-        //----------------------------------------------------------
-        //----------------- count and print errors -----------------
-        //----------------------------------------------------------
-
-
-    
     if (n_trials == 1 && errors_scrambling[0] > 0) {
       printf("\x1B[31m""[frame %d][trial %d]\tnumber of errors in unscrambling = %u\n" "\x1B[0m", frame, trial, errors_scrambling[0]);
     }
@@ -1044,6 +1116,7 @@ int main(int argc, char **argv)
       printDistribution(&gNB->phy_proc_rx,table_rx,"Total PHY proc rx");
       printStatIndent(&gNB->rx_pusch_stats,"RX PUSCH time");
       printStatIndent2(&gNB->ulsch_channel_estimation_stats,"ULSCH channel estimation time");
+      printStatIndent2(&gNB->ulsch_ptrs_processing_stats,"ULSCH PTRS Processing time");
       printStatIndent2(&gNB->ulsch_rbs_extraction_stats,"ULSCH rbs extraction time");
       printStatIndent2(&gNB->ulsch_channel_compensation_stats,"ULSCH channel compensation time");
       printStatIndent2(&gNB->ulsch_mrc_stats,"ULSCH mrc computation");
@@ -1055,17 +1128,17 @@ int main(int argc, char **argv)
       printStatIndent2(&gNB->ulsch_ldpc_decoding_stats,"ULSCH ldpc decoding");
       printf("\n");
     }
-    
+
     if(n_trials==1)
       break;
-    
+
     if ((float)n_errors[0]/(float)n_trials <= target_error_rate) {
       printf("*************\n");
       printf("PUSCH test OK\n");
       printf("*************\n");
       break;
     }
-      
+
     snrRun++;
     n_errs = n_errors[0];
   } // SNR loop

openair1/SIMULATION/TOOLS/phase_noise.c

+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.1  (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.openairinterface.org/?page_id=698
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ *      contact@openairinterface.org
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <time.h>
+#include  "sim.h"
+
+
+/* linear phase noise model */
+void phase_noise(double ts, int16_t * InRe, int16_t * InIm)
+{
+  double fd = 300;//0.01*30000
+  static double i=0;
+  double real, imag,x ,y;
+  i++;
+  real = cos(fd * 2 * M_PI * i * ts);
+  imag = sin (fd * 2 * M_PI * i * ts);
+  x = ((real * (double)InRe[0]) - (imag * (double)InIm[0])) ;
+  y= ((real * (double)InIm[0]) + (imag * (double)InRe[0])) ;
+  InRe[0]= (int16_t)(x);
+  InIm[0]= (int16_t)(y);
+}

openair1/SIMULATION/TOOLS/sim.h

@@ -460,6 +460,14 @@ void init_channelmod(void) ;
 double N_RB2sampling_rate(uint16_t N_RB);
 double N_RB2channel_bandwidth(uint16_t N_RB);
 
+/* Linear phase noise model */
+/*!
+  \brief This function produce phase noise and add to input signal
+  \param ts Sampling time 
+  \param *Re *Im Real and Imag part of the signal
+*/
+void phase_noise(double ts, int16_t * InRe, int16_t * InIm);
+
 #include "targets/RT/USER/rfsim.h"
 
 void do_DL_sig(sim_t *sim,

openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c

@@ -1940,9 +1940,9 @@ uint8_t get_K_ptrs(uint16_t nrb0, uint16_t nrb1, uint16_t N_RB) {
     LOG_I(PHY,"PUSH PT-RS is not present.\n");
     return -1;
   } else if (N_RB >= nrb0 && N_RB < nrb1)
-    return 0;
+    return 2;
   else
-    return 1;
+    return 4;
 }
 
 uint16_t nr_dci_size(NR_ServingCellConfigCommon_t *scc,