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