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What is the difference between MAC reset and RRC_IDLE in LTE?

+3 votes
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What is the difference between MAC reset and RRC_IDLE in LTE?
posted Jul 2, 2015 by anonymous

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If I am correct, IDLE_state is in the context of RRC layer ?

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+3 votes

In one use case, I observed that MAC is constantly toggling between "in_sync" snd "out_sync" states. So, every-time MAC forwards this indication to L3 (e.g., to RRC first and RRC sending to RRM), it is sending RRC Connection Reconfiguration to that UE with CQI and SR configurations, with exactly same values.
The reason for the behavior at MAC is not yet clear to me. Maybe due to DRX configuration. But, it is sending out of sync indication to L3 as radio link failure is getting detected by MAC for uplink. Although, actually RLF has not happened.
So, my doubt is that L3 to send exactly same copies of RRC Connection Reconfiguration is how justified? As there is a long sequence of RCRs is going on and each message is being sent in around 5-6 seconds interval.

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