LTE MAC Tutorial

MAC-BSR-RRC-Message

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While studying the MAC specification today, I thought it would be a good idea to check the MAC Buffer Status Report (BSR) control element details. I had following questions in my mind about Buffer Status Report: Why is this control element used in LTE? What are different BSR CE formats?

MAC architecture on UE side

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This tutorial describes the specific details of the LTE MAC layer or the Medium Access Control protocol. MAC is a radio network protocol which resides both in the UE and in the E-UTRAN. Also, it should be noted that MAC protocol is available for both User plane and also for the control plane. RRC (Radio Resource Control) protocol is in (more ..)