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LTE: Like default Radio configurations for SRB1 & SRB2 in RRC specs, Is there any default config for DRB?

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For SRB's mentioned default parameter values :

RLC configuration CHOICE
ul-RLC-Config
>t-PollRetransmit
>pollPDU
>pollByte
>maxRetxThreshold
dl-RLC-Config
>t-Reordering
>t-StatusProhibit
Logical channel configuration
priority
prioritisedBitRate
bucketSizeDuration
logicalChannelGroup

So is their any default parameters value for DRB for RLC AM mode in LTE for UL & DL?

posted Jul 21, 2017 by anonymous

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1 Answer

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First of all DRB is a data radio bearer and it's QoS parameters comes from MME at eNodeB through Initial Context Setup Request message. That's is the reason eNodeB does not consider any default value for DRB. Each subscriber may subscribe for different QoS for default bearer. Some subscriber may subscriber for IMS bearer and some may subscribe for internet bearer as default bearer. Each type of bearer has different QoS requirement and different radio treatment at radio site i.e. eNodeB.

answer Jul 22, 2017 by Harshita
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