文本描述
NB-IoT技术业务流程简介 业务相关流程
系统消息发送
附着(ATTACH)
TAU
CP模式数据传输流程
UP模式 Suspend/Resume流程 System Information 系统信息分为MIB和一系列的SIB
LTE(R8)和NB-IoT系统信息主要内容对比简介 System Information发送 MIB固定方式发送
SIB1时域固定方式发送,频域动态调度(SI-RNTI加扰)
SIB1中SchedulingInfoList
si-WindowLength
systemInfoValueTag MIB固定方式发送
SIB1半固定, 由MIB指示TBS和重复次数
SIB1中SchedulingInfoList
si-WindowLength
si-RadioFrameOffset
systemInfoValueTagList MIB&SIB1 发送 RSIB1-NB =16 LTE MIB发送 LTE SIB1发送 MIB-NB固定方式发送 SIB1-NB半固定方式发送
由重复次数,PCID决定帧号 System Information调度参数 调度相关参数(NBIOT)
si-WindowLength {ms160, ms320, ms640, ms960, ms1280, ms1600, spare2, spare1}
si-RadioFrameOffset {0..15}
SchedulingInfoList-NB-r13 ::= SEQUENCE (SIZE (1..maxSI-Message-NB-r13)) OF SchedulingInfo-NB-r13
SchedulingInfo-NB-r13::=SEQUENCE {
si-Periodicity-r13 {rf64, rf128, rf256, rf512, rf1024, rf2048, rf4096, spare},
sib-MappingInfo-r13SIB-MappingInfo-NB-r13,
schedulingInfoSI-r13SEQUENCE {
si-TBS-r13 {b56, b120, b208, b256, b328, b440, b552, b680},
si-RepetitionPattern-r13 {every2ndRF, every4thRF,every8thRF, every16thRF}
SIB-MappingInfo-NB-r13 ::= SEQUENCE (SIZE (0..maxSIB-1-NB-r13)) OF SIB-Type-NB-r13
SIB-Type-NB-r13 ::= {sibType3-NB-r13, sibType4-NB-r13, sibType5-NB-r13,
sibType14-NB-r13, sibType16-NB-r13,spare3, spare2, spare1}