在5G(NR)网络中BSR消息“IE BSR-Config ”用于BSR(配置缓冲区)的状态报告，其内容如下：

-- ASN1STARTkangguoying20210604

-- TAG-BSR-CONFIG-START kangguoying20210604

BSR-Config ::=                      SEQUENCE {

    periodicBSR-Timer                   ENUMERATED { sf1, sf5, sf10, sf16, sf20, sf32, sf40, sf64,kangguoying20210604

                                                        sf80, sf128, sf160, sf320, sf640, sf1280, sf2560, infinity },

    retxBSR-Timer                       ENUMERATED { sf10, sf20, sf40, sf80, sf160, sf320, sf640, sf1280, sf2560,kangguoying20210604

                                                        sf5120, sf10240, spare5, spare4, spare3, spare2, spare1},

    logicalChannelSR-DelayTimer         ENUMERATED { sf20, sf40, sf64, sf128, sf512, sf1024, sf2560, spare1}                OPTIONAL, -- Need R

    ...} kangguoying20210604

-- TAG-BSR-CONFIG-STOP

-- ASN1STOPkangguoying20210604

 logicalChannelSR-DelayTimer：gNB 发送一个SR的延时(子帧数)值sf20对应20个子帧，sf40对应40个子帧。

periodicBSR-Timer ：BSR发送(周期)定时器,值 sf1 对应 1 个子帧，值 sf5 对应 5 个子帧。kangguoying20210604

retxBSR-Timer :BSR重发定时器,sf10值对应10个子帧，sf20值对应20个子帧。kangguoying20210604

有关BSR定义可参看我V信公众号中介绍。

资料来源：3GPP 38.331 6.3

资料整理：kangguoying20210604