Merge remote-tracking branch 'origin/Dedicated-BWPs' into integration_2022_wk19b

# Conflicts: # openair1/SIMULATION/NR_PHY/ulsim.c # openair2/LAYER2/NR_MAC_UE/nr_ue_scheduler.c # openair2/RRC/NR/rrc_gNB_reconfig.c
2022-05-13 15:58:56 +01:00
parent 851291ddc4 cc238a91e4
commit 486e9e2381
52 changed files with 3284 additions and 1277 deletions
@@ -332,6 +332,9 @@ The following features are valid for the gNB and the 5G-NR UE.
  - evalution of RSRP report
  - evaluation of CQI report
 - MAC scheduling of SR reception
+- Bandwidth part (BWP) operation
+  - Handle multiple dedicated BWPs
+  - BWP switching through RRCReconfiguration method

 **gNB RLC**
 - Send/Receive operations according to 38.322 Rel.16
@@ -493,6 +496,8 @@ The following features are valid for the gNB and the 5G-NR UE.
   - Configuration of fapi PDU according to DCI
 * Scheduler procedures for SRS transmission
   - Periodic SRS transmission
+* Bandwidth part (BWP) operation
+   - Operation in configured dedicated BWP through RRCSetup or RRCReconfiguration


 **UE RLC**
@@ -0,0 +1,51 @@
+# Procedure to add dedicated Bandwidth part (BWP)
+
+## Contributed by 5G Testbed IISc 
+
+### Developers: Abhijith A, Shruthi S
+
+# Terminology #
+
+## Bandwidth part (BWP) ##
+Bandwidth Part (BWP) is a set of contiguous Resource Blocks in the resource grid. 
+
+Parameters of a BWP are communicated to UE using RRC parameters: BWP-Downlink and BWP-Uplink. 
+
+A UE can be configured with a set of 4 BWPs in uplink (UL) and downlink (DL) direction (3GPP TS 38.331 Annex B.2 Description of BWP configuration options). But only 1 BWP can be active in UL and DL direction at a given time.
+
+# Procedure to run multiple dedicated BWPs #
+
+A maximum of 4 dedicated BWPs can be configured for a UE.
+
+To configure multiple BWPs, add the following parameters to the gNB configuration file under "servingCellConfigDedicated": 
+
+## Setup of the Configuration files ##
+```
+    firstActiveDownlinkBWP-Id = 1;  #BWP-Id
+    defaultDownlinkBWP-Id     = 1;  #BWP-Id
+    firstActiveUplinkBWP-Id   = 1;  #BWP-Id
+```
+
+Each dedicated BWP must have:
+```
+    # BWP 1 Configuration
+    dl_bwp-Id_1 = 1;
+    dl_bwp1_locationAndBandwidth = 28875; // RBstart=0, L=106 (40 MHz BW)
+    # subcarrierSpacing
+    # 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
+    dl_bwp1_subcarrierSpacing = 1;
+```   
+
+ Find these parameters in this configuration file: "targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band78.fr1.106PRB.usrpb210.conf"
+     
+# Testing gNB and UE in RF simulator
+
+## gNB command:
+```
+    sudo ./nr-softmodem -O ../../../targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band78.fr1.106PRB.usrpb210.conf --gNBs.[0].min_rxtxtime 6 --rfsim --sa
+```
+
+## UE command:
+```
+    sudo RFSIMULATOR=127.0.0.1 ./nr-uesoftmodem -r 106 --numerology 1 --band 78 -C 3619200000 --nokrnmod --rfsim --sa --uicc0.imsi 208990000000001
+```