RLC Protocol Specification.doc

China Wireless munication Standard (CWTS);
Working Group 1 (WG1);
RLC Protocol Specification

TS C202 (1999-10)
Technical Specification
Contents
1. SCOPE 4
2. REFERENCES 4
3. DEFINITIONS AND ABBREVIATIONS 4
4. GENERAL 5
. Objective 5
. Overview on sublayer architecture 5
. Model of RLC 5
5. FUNCTIONS 10
6. SERVICES PROVIDED TO UPPER LAYERS 10
. Mapping of services/functions onto logical channels 11
7. SERVICES EXPECTED FROM MAC 14
8. ELEMENTS FOR LAYER-TO-MUNICATION 14
. Primitives between RLC and higher layers 14
9. ELEMENTS FOR PEER-TO-MUNICATION 15
. Protocol data units 15
. Data PDUs 15
. Control PDUs 15
. Formats and parameters 16
. Formats 16
. Parameters 18
. Protocol states 25
. State model for transparent mode entities 25
. State model for unacknowledged mode entities 26
. State model for acknowledged mode entities 26
. State variables 27
. Timers 29
. Protocol Parameters 29
. Specific functions 30
. Retransmission Scheme 30
. SDU discard function 33
. The Estimated PDU Counter 34
. Multiple payload units and pression 34
. Credit and peer-to-peer flow control 35
. Local flow control 36
10. HANDLING OF UNKNOWN, UNFORESEEN AND ERRONEOUS PROTOCOL DATA 36
11. ELEMENTARY PROCEDURES 36
. Transparent mode data transfer procedure 36
. Unacknowledged mode data transfer procedure 37
. Acknowledged mode data transfer procedure 37
. RLC reset procedure 38
. STATUS PDU transfer procedure 38
. Triggers of the STATUS report procedure 38
TABLE 111: LIST OF TRIGGERS OF THE STATUS REPORT PROCEDURE. 38
. How to act upon reception of a STATUS PDU 39
. Poll procedure 40
. Triggers of the poll procedure 40
12. SDL DIAGRAMS 41
13. ANNEX A PSEUDO CODE DESCRIBING AMD PDU PRESSION 84
14. HISTORY 86
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