TDSCDMA第3代移动通讯协议.doc

TS C001 V3.0.0 (1999-10) Technical Specification China Wireless Telecommunication Standard (CWTS); Working Group 1 (WG1); Radio Interface Protocol Architecture Contents Foreword 4 1 Scope 5 2 References 5 3 Definitions and Abbreviations 6 3.1 Definitions 6 3.2 Abbreviations 6 4 Assumed TD-SCDMA Architecture 8 5 Radio interface protocol architecture 8 5.1 Overall protocol structure 8 5.2 Layer 1 Services and Functions 10 5.2.1 L1 Services 10 Transport channels 10 5.2.2 L1 Functions 11 5.3 Layer 2 Services and Functions 12 5.3.1 MAC Services and Functions 12 MAC Services to upper layers 12 .1 Logical channels 12 .1.1 Control Channels 13 .1.2 Traffic Channels 14 .2 Mapping between logical channels and transport channels 14 MAC functions 15 5.3.2 RLC Services and Functions 17 Services provided to the upper layer 17 RLC Functions 18 5.3.3 Data flows through Layer 2 19 Data flow for BCCH mapped to BCH (FFS.) 21 Data flow for PCCH mapped to PCH (FFS.) 22 Data flow for SCCH mapped to SCH (FFS.) 22 Data flow for CCCH mapped to FACH/RACH (FFS) 22 Data flow for DCCH mapped to FACH/RACH 22 Data flow for DCCH mapped to DSCH 22 Data flow for DTCH (non-transparent RLC) mapped to FACH/RACH 22 Data flow for DTCH (non-transparent RLC) mapped to DSCH 22 Data flow for DTCH (transparent RLC) mapped to DCH 22 0 Data flow for DTCH (non-transparent RLC) mapped to DCH 22 1 Data flow for DCCH mapped to DCH 22 5.4 Layer 3 - RRC Services and Functions 23 5.4.1 RRC services 23 General Control 23 Notification 23 Dedicated Control 23 5.4.2 RRC functions 24 5.5 Interactions between RRC and lower layers in the C plane 26 5.6 Protocol termination 26 5.6.1 Protocol termination for DCH 26 5.6.2 Protocol termination for RACH/FACH 27 5.6.3 Protocol termination for DSCH 29 DSCH definition 29 Resource allocation and UE identification on DSCH 29 .1 Case A (UE requires a downlink TFCI on a DPCCH) 29 .2 Case B (UE requires a FACH or DSCH) 29 Model of DSCH in RAN 30 Protocol terminat