The Radio Resource Control (RRC) protocol is used in UMTS, LTE and 5G on the Air interface. It is a layer 3 (Network Layer) protocol used between UE and Base Station . This protocol is specified by 3GPP in TS 25.331 for UMTS, in TS 36.331 for LTE and in TS 38.331 for 5G New Radio.
Read moreWhat is RRC message?
The RRC messages are encrypted and checked for integrity . The RRC ConnectionReconfiguration message is used by the eNB entity to command a modification of the RRC connection. This message may relate to the configuration of the measurements, control of the mobility and configuration of the DRB default bearer.
Read moreWhat is RRC IDLE state in 5G?
In 5G, they have introduced new RRC Stats called “RRC Inactive” to minimize latency as well as to reduce signalling load . Transitions from RRC Inactive to Connected is very quick as UE Context is stored at gNB and UE. NG signalling keep alive between gNB to AMF, GTP-U also remain alive between gNB to UPF.1 Tem 2020
Read moreWhat are RRC states?
There are three RRC states; RRC_IDLE, RRC_INACTIVE, and RRC_CONNECTED are defined for a 5G NR UE. While RRC_IDLE and RRC_CONNECTED states in NR are almost same as those of LTE, the RRC_INACTIVE states is newly introduced in 5G NR.
Read moreWhat are RRC states in LTE?
In LTE there is only 2 RRC states i.e. RRC_IDLE and RRC_CONNECTED whereas in UMTS system RRC has a 5 state i.e. IDLE, CELL_FACH, CELL_DCH, CELL_PCH and URA_PCH.
Read moreWhat is NRDC in 5G?
NR-DC is a Dual Connectivity configuration using the 5GC, whereby both the master and secondary RAN nodes are 5G gNBs .
Read moreWhat is RRC IE?
RRC stands for Radio Resource Control . I personally define RRC as a common language that should be understood by both Network and UE. As you know, UE and Network is communicating via radio channel.
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