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Why SRB-ToAddMod has only rlc,logical channel configurations and what about remaining configurations(pdcp,mac,phy)?

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Why SRB-ToAddMod has only rlc,logical channel configurations and what about remaining configurations(pdcp,mac,phy)?
posted Jan 30, 2015 by Gnanendra Reddy

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1 Answer

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RadioResourceConfigDedicated IE carries information related to establishment/modification/release of data radio bearers and as well as info related to establishment/modification of signalling radio bearers. RadioResourceConfigDedicated IE also carries mac-MainConfig, sps-Config, physicalConfigDedicated sub informations which are common for all SRBs as well DRBs. Reason being, these things are not included in srb-ToAddMod list explicitly. SRB's data does not need any header compression, discard timer at all, that's why PDCP-Config is not present in srb-ToAddMod IE but it considers as RLC AM mode that's why RLC-Configuration is present for SRBs.

I tried to explain things as per my understanding.
thanks.

answer Jan 30, 2015 by Vikram Singh
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