4G/LTE - BL/CE |
||
PUSCH Subframe Assignment
In LTE-M1, PUSCH can be transmitted repeatedly to increase cell coverage. This process is defined in 36.213-8.0 UE procedure for transmitting the physical uplink shared channel and can be illustrated as follows :
The two tables defining N values are defined as follows.
< 36.213-Table 8.2b: PUSCH repetition levels (DCI Format 6-0A) >
< 36.213-Table 8.2c: PUSCH repetition levels (DCI Format 6-0B) >
The importantant thing to be noticed is that there are big difference between CEmodeA and CEmodeB in terms of max Number Repetition. In General, CE Mode B perform much more repetition. PUSCH-maxNumRepetitionCEmodeA/B would be configured in SIB2 as follows.
PUSCH-ConfigCommon-v1310 ::= SEQUENCE { pusch-maxNumRepetitionCEmodeA-r13 ENUMERATED { r8, r16, r32 } pusch-maxNumRepetitionCEmodeB-r13 ENUMERATED {r192,r256,r384,r512,r768,r1024,r1536,r2048} pusch-HoppingOffset-v1310 INTEGER (1..maxAvailNarrowBands-r13) }
Example >
sib2 radioResourceConfigCommon bcch-Config pcch-Config prach-Config pdsch-ConfigCommon pusch-ConfigCommon pucch-ConfigCommon soundingRS-UL-ConfigCommon: release (0) uplinkPowerControlCommon ul-CyclicPrefixLength: len1 (0) bcch-Config-v1310 modificationPeriodCoeff-v1310: n64 (0) pcch-Config-v1310 paging-narrowBands-r13: 1 mpdcch-NumRepetition-Paging-r13: r1 (0) nB-v1310: one64thT (0) freqHoppingParameters-r13 pdsch-ConfigCommon-v1310 pdsch-maxNumRepetitionCEmodeA-r13: r16 (0) pdsch-maxNumRepetitionCEmodeB-r13: r192 (0) pusch-ConfigCommon-v1310 pusch-maxNumRepetitionCEmodeA-r13: r8 (0) pusch-maxNumRepetitionCEmodeB-r13: r192 (0) pusch-HoppingOffset-v1310: 1 prach-ConfigCommon-v1310 pucch-ConfigCommon-v1310 n1PUCCH-AN-InfoList-r13: 1 item Item 0 N1PUCCH-AN-InfoList-r13 item: 57 pucch-NumRepetitionCE-Msg4-Level0-r13: n1 (0) pucch-NumRepetitionCE-Msg4-Level1-r13: n1 (0) ue-TimersAndConstants freqInfo additionalSpectrumEmission: 1 timeAlignmentTimerCommon: infinity (7)
Reference
[1] 3GPP TS 36.213 V13.2.0 (2016-06) Physical layer procedures
|
||