Users Manual Part 1

J Plus, Inc
2.9.1 LTE protocol Stack
The LTE Protocol Stack is composed of LTE protocols defined in 3GPP Release 10.
▪ PDCP (Packet Data Convergence Protocol)
Delivery and handling of user / control data including header compression and ciphering (defined in TS
36.323)
▪ RLC (Radio Link Control)
Data delivery between MAC and PDCP including segmentation and ARQ (defined in TS 36.322)
▪ MAC (Media Access Control)
Protocol mapping between transport channels and logical channels (defined in TS 36.321)
▪ RRC (Radio Resource Control)
Protocol to handle control plane signaling (defined in TS 36.331)
▪ S1AP (S1 Application Protocol)
Signaling protocol between HeNB and EPC (defined in TS 36.413)
▪ X2AP (X2 Application Protocol)
Signaling protocol between HeNBs to handle UE mobility (defined in TS 36.423)
▪ GTP (GPRS Tunneling Protocol)
Tunneling protocol for user plane (defined in TS 29.281)
▪ SCTP (Stream Control Transmission Protocol)
Transport protocol for S1 and X2 control interfaces (defined in TS 36.412)
The LTE Protocol Stack also includes blocks to support following higher layer functions.
▪ RRM (Radio Resource Management)
Management and control of radio resources including admission control and packet scheduling
▪ Mobility
Handling of mobility between cells with same or different frequencies through S1 and X2 links
▪ QoS (Quality of Service)
Provides QoS functions according to bearer types and associated parameters
▪ SON (Self Organizing Network)
Provides automatic configuration and parameter optimizations
▪ REM (Radio Environment Monitoring)
Measurement to identify surrounding cells for SON and ANR
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