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OAI修改SSB个数配置报错

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发表于 2022-1-24 15:07:33 | 显示全部楼层 |阅读模式
OAI配置文件里
gnb.conf中的ssb_PositionsInBurst_Bitmap配置项修改为15,可以观察到每个20MS周期发送了四个SSB。
但是运行会各种报错。另外CCE找不到空闲的这种报错经常有,一种是当重建的时候会有,一种是调度Msg3重传的时候会有。

现象1:ssb_PositionsInBurst_Bitmap配置为15
[2022-01-22 14:59:31.729217][PHY]   [gNB 0][RAPROC] Frame 733, slot 19 Initiating RA procedure with preamble 44, energy 48.0 dB (I0 239, thres 150), delay 4 start symbol 8 freq index 0
[2022-01-22 14:59:31.730024][NR_MAC]   [L252] cce_list[first_cce+i] != 0 cce_list: 1
[2022-01-22 14:59:31.730032][NR_MAC]   [L1201] nr_generate_Msg2(): cannot find free CCE for RA RNTI 2d1b!
[2022-01-22 14:59:31.749221][PHY]   [gNB 0][RAPROC] Frame 735, slot 19 Initiating RA procedure with preamble 44, energy 48.0 dB (I0 260, thres 150), delay 4 start symbol 8 freq index 0
[2022-01-22 14:59:31.750025][NR_MAC]   [L252] cce_list[first_cce+i] != 0 cce_list: 1
[2022-01-22 14:59:31.750032][NR_MAC]   [L1201] nr_generate_Msg2(): cannot find free CCE for RA RNTI b5cb!
[2022-01-22 14:59:31.769228][PHY]   [gNB 0][RAPROC] Frame 737, slot 19 Initiating RA procedure with preamble 44, energy 48.0 dB (I0 275, thres 150), delay 4 start symbol 8 freq index 0
[2022-01-22 14:59:31.770031][NR_MAC]   [L252] cce_list[first_cce+i] != 0 cce_list: 1
[2022-01-22 14:59:31.770039][NR_MAC]   [L1201] nr_generate_Msg2(): cannot find free CCE for RA RNTI 6b38!
[2022-01-22 14:59:31.789225][PHY]   [gNB 0][RAPROC] Frame 739, slot 19 Initiating RA procedure with preamble 44, energy 48.0 dB (I0 283, thres 150), delay 4 start symbol 8 freq index 0
[2022-01-22 14:59:31.790029][NR_MAC]   [L252] cce_list[first_cce+i] != 0 cce_list: 1
[2022-01-22 14:59:31.790037][NR_MAC]   [L1201] nr_generate_Msg2(): cannot find free CCE for RA RNTI 1170!
[2022-01-22 14:59:31.809234][PHY]   [gNB 0][RAPROC] Frame 741, slot 19 Initiating RA procedure with preamble 44, energy 48.0 dB (I0 290, thres 150), delay 4 start symbol 8 freq index 0
[2022-01-22 14:59:31.809287][NR_MAC]   [gNB 0][RAPROC] FAILURE: CC_id 0 Frame 741 initiating RA procedure for preamble index 44
[2022-01-22 14:59:31.829270][PHY]   [gNB 0][RAPROC] Frame 743, slot 19 Initiating RA procedure with preamble 44, energy 48.0 dB (I0 295, thres 150), delay 4 start symbol 8 freq index 0
[2022-01-22 14:59:31.829326][NR_MAC]   [gNB 0][RAPROC] FAILURE: CC_id 0 Frame 743 initiating RA procedure for preamble index 44
[2022-01-22 14:59:31.849275][PHY]   [gNB 0][RAPROC] Frame 745, slot 19 Initiating RA procedure with preamble 44, energy 48.0 dB (I0 298, thres 150), delay 5 start symbol 8 freq index 0
现象2:ssb_PositionsInBurst_Bitmap配置为15
[2022-01-22 16:30:17.540211][PHY]   [gNB 0][RAPROC] Frame 313, slot 19Initiating RA procedure with preamble 26, energy 51.0 dB (I0 264, thres 150),delay 9 start symbol 4 freq index 0
[2022-01-22 16:30:17.541061][NR_MAC]   [gNB 0][RAPROC] CC_id 0 Frame 314, slotP 7:Generating RA-Msg2 DCI, rnti 0x10f, state 1
[2022-01-22 16:30:17.541082][NR_MAC]   [gNB] Generate RAR MAC PDU frame 314 slot 7preamble index 26 TA command 9
[2022-01-22 16:30:17.541104][NR_MAC]   In nr_fill_rar: Transmitted RAR with t_alloc2 f_alloc 528 ta_command 9 mcs 0 freq_hopping 0 tpc_command 3 csi_req 0 t_crntia09b
[2022-01-22 16:30:17.541111][NR_MAC]   [gNB 0][RAPROC] Frame 314, Subframe 7: RAstate 2
[2022-01-22 16:30:17.549248][NR_MAC]   [WCS]L729 Random Access 0 has RNTI a09b
[2022-01-22 16:30:17.549258][NR_MAC]   [gNB 0] Adding UE with rnti a09b (num_UEs 0)
[2022-01-22 16:30:17.549513][NR_MAC]   [gNB 0] Add NR UE_id 0 : rnti a09b
[2022-01-22 16:30:17.549519][NR_MAC]   reset RA state information for RA-RNTIa09b/index 0
[2022-01-22 16:30:17.549523][NR_MAC]   [gNB 0][RAPROC] PUSCH with TC_RNTI a09breceived correctly, adding UE MAC Context UE_id 0/RNTI a09b
[2022-01-22 16:30:17.549527][NR_MAC]   [RAPROC] RA-Msg3 received (sdu_lenP 12)g_msg_type: 0
[2022-01-22 16:30:17.549548][NR_RRC]   Returning new UE context at 0x7fdefc001c80
[2022-01-22 16:30:17.549556][NR_RRC]   rrc_gNB_generate_RRCSetup
[2022-01-22 16:30:17.549594][NR_RRC]   [FRAME 00314][gNB][MOD 00][RNTI a09b][RAPROC] Logical Channel DL-CCCH, Generating RRCSetup (bytes 51)
[2022-01-22 16:30:17.549600][NR_MAC]   Modified UE_id 0/a09b with CellGroup
[2022-01-22 16:30:17.549605][NR_MAC]   Adding SchedulingRequestconfig
[2022-01-22 16:30:17.549609][NR_MAC]   Adding BSR config
[2022-01-22 16:30:17.549613][NR_MAC]   Adding TAG config
[2022-01-22 16:30:17.549617][NR_MAC]   Adding PHR config
[2022-01-22 16:30:17.549621][NR_MAC]   Adding LCID 1 (SRB 1)
[2022-01-22 16:30:17.549629][NR_MAC]   Scheduling RA-Msg4 for TC_RNTI a09b (state4, frame 316, slot 1)
[2022-01-2216:30:17.549634][NR_MAC]   UnexpectedULSCH HARQ PID 0 (have -1) for RNTI a09b (ignore this warning for RA)
[2022-01-2216:30:17.558058][NR_MAC]   [WCS][L1450]Ignore assert.
[2022-01-2216:30:17.558079][NR_MAC]   [L252][Ignore]cce_list[first_cce+i] != 0 cce_list: 1
[2022-01-2216:30:17.558087][NR_MAC]   [L252][Ignore]cce_list[first_cce+i] != 0 cce_list: 1
[2022-01-2216:30:17.558090][NR_MAC]   [L252][Ignore]cce_list[first_cce+i] != 0 cce_list: 1
[2022-01-2216:30:17.558096][NR_MAC]   [L252][Ignore]cce_list[first_cce+i] != 0 cce_list: 1
[2022-01-22 16:30:17.558111][NR_MAC]   [gNB 0] [RAPROC] CC_id 0 Frame 316, slotP 1:Generating RA-Msg4 DCI, state 4
Assertion (pdcch_received== 0) failed!
In nr_schedule_response()/opt/oai/nr/20211012-ran-develop-idcatch/openair1/SCHED_NR/fapi_nr_l1.c:211
pdcch_received is not 0, we can only handle one PDCCH PDU per slot
[2022-01-22 16:30:17.558119][NR_MAC]   [gNB 0][RAPROC] Frame 316, Subframe 1: RAstate 5
Exiting execution
Linux signal Aborted...



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