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标题: 使用OAI源码解移动公网下行信号sib1失败 [打印本页]

作者: huxiaowei 时间: 2021-8-4 18:19
标题: 使用OAI源码解移动公网下行信号sib1失败
使用ran-develop-sib1-update-ue分支，解移动公网下行信号sib1，decode MIB成功，DCI盲检时CRC校验失败（使用develop分支时也是如此）

nrUE使用命令为：

sudo ./nr-uesoftmodem --sa--numerology 1 -r 51 -C 2524950000--ue-rxgain 115 --ue-fo-compensation --ue-scan-carrier --usrp-args"addr=192.168.40.2,clock_source=internal,time_source=internal" --rrc_config_path ./ --nokrnmod --noS1 2>&1 | tee ~/runlog/nr_ue_$(date +%Y%m%d_%H%M%S).log

log：Trying DCI candidate 0 of 2 number of candidates, CCE 0 (0), L 8

PDCCH Unscrambling x2 14 : scrambling_RNTI 0

(638.10) Decoded crc 2c3e does not match rnti ffff for DCI format 0

Trying DCI candidate 1 of 2 number of candidates, CCE 8 (864), L 8

PDCCH Unscrambling x2 14 : scrambling_RNTI 0

(638.10) Decoded crc 8ec2 does not match rnti ffff for DCI format 0

[UE 0] Frame 638, nr_slot_rx 10: No DCIs found

作者: wangwenhui 时间: 2021-10-12 18:48
develop-NR_SA_F1AP_5GRECORDS试试这个分支呢？另外我记得最新的代码是不是UE侧不需要指定--rrc_config_path ./ 了？现在有空口随机接入测试成功的版本吗？

作者: wangwenhui 时间: 2021-10-21 11:44
代码中默认是L=4是吗？我用5G OAI UE对接移动公网的基站，也是SIB1的DCI无法译码。
[PHY] Trying DCI candidate 0 of 2 number of candidates, CCE 0 (0), L 4
[PHY] PDCCH Unscrambling x2 69 : scrambling_RNTI 0
[PHY] (0.0) dci indication (rnti ffff,dci format NR_DL_DCI_FORMAT_1_0,n_CCE 0,payloadSize 39)
[PHY] (0.0) Decoded crc 81b8 does not match rnti ffff for DCI format 0
[PHY] Trying DCI candidate 1 of 2 number of candidates, CCE 4 (432), L 4
[PHY] PDCCH Unscrambling x2 69 : scrambling_RNTI 0
[PHY] (0.0) dci indication (rnti ffff,dci format NR_DL_DCI_FORMAT_1_0,n_CCE 4,payloadSize 39)
[PHY] (0.0) Decoded crc 1127 does not match rnti ffff for DCI format 0

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