3GPP TS 36 - 株式会社QT

1 3 GPP TS (2007-12)Technical Specification 3rd Generation Partnership Project;Technical Specification Group Radio Access Network; evolved universal terrestrial Radio Access (E-UTRA)Radio Link Control (RLC) protocol specification(Release 8)The present document has been developed within the 3rd Generation Partnership Project (3 GPPTM) and may be further elaborated for the purposes of 3 GPP. The present document has not been subject to any approval process by the 3 GPP Organisational Partners and shall not be implemented. This Specification is provided for future development work within 3 GPP only.

2 The Organisational Partners accept no liability for any use of this and reports for implementation of the 3 GPP TM system should be obtained via the 3 GPP Organisational Partners' Publications Offices. 3 GPP TS (2007-12)2 Release 8T Keywords UMTS, radio 3 GPP Postal address 3 GPP support office address 650 Route des Lucioles - Sophia Antipolis Valbonne - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Internet Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media.

3 2007, 3 GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC). All rights reserved. 3 GPP 3 GPP TS (2007-12)3 Release 8T Contents Foreword ..5 1 Scope ..6 2 References ..6 3 Definitions, symbols and abbreviations ..6 Definitions .. 6 6 4 General ..7 7 RLC 7 RLC entities .. 7 TM RLC entity .. 8 General .. 8 Transmitting TM RLC 9 Receiving TM RLC entity .. 9 UM RLC 9 General .. 9 Transmitting UM RLC 10 Receiving UM RLC 10 AM RLC 11 General .. 11 Transmitting side .. 11 Receiving side .. 12 12 Services provided to upper layers.

4 12 Services provided from lower 12 12 5 Procedures ..13 Data transfer procedures .. 13 TM data transfer .. 13 UM data transfer .. 13 AM data transfer .. 15 ARQ procedures .. 18 Retransmission .. 18 Polling .. 19 Status reporting .. 19 SDU discard procedures .. 20 Reset procedures .. 20 Handling of unknown, unforeseen and erroneous protocol 20 6 Protocol data units, formats and parameters ..20 Protocol data units .. 20 RLC data PDU .. 20 RLC control 21 Formats and parameters .. 21 21 General .. 21 TMD PDU.

5 21 UMD 21 AMD 22 AMD PDU segment .. 23 STATUS PDU .. 25 Parameters .. 26 General .. 26 Data field .. 26 Sequence Number (SN) 26 Extension bit (E) 26 3 GPP 3 GPP TS (2007-12)4 Release 8T Length Indicator (LI) 27 [Segmentation Info (SI)] field .. 27 Segment Offset (SO) field .. 27 Last Segment Flag (LSF) field .. 27 Data/Control (D/C) 28 Re-segmentation Flag (RF) field .. 28 Polling bit (P) field .. 28 Reserved 1 (R1) 28 Control PDU Type (CPT) 28 Acknowledgement SN (ACK_SN) Extension bit 1 (E1) 29 Negative Acknowledgement SN (NACK_SN) field.

6 29 Extension bit 2 (E2) 29 SO start (SOstart) field .. 30 SO end (SOend) field .. 30 7 Variables, constants and timers ..30 State variables .. 30 31 Timers .. 32 Annex A (informative): Change history ..33 3 GPP 3 GPP TS (2007-12)5 Release 8T Foreword This Technical Specification has been produced by the 3rd Generation Partnership Project (3 GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control.

7 Y the second digit is incremented for all changes of substance, technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. 3 GPP 3 GPP TS (2007-12)6 Release 8T 1 Scope The present document specifies the E-UTRA Radio Link Control (RLC) protocol for the UE E-UTRAN radio interface. The specification describes: - E-UTRA RLC sublayer architecture; - E-UTRA RLC entities; - services expected from lower layers by E-UTRA RLC; - services provided to upper layers by E-UTRA RLC; - E-UTRA RLC functions; - elements for peer-to-peer E-UTRA RLC communication including protocol data units, formats and parameters; - handling of unknown, unforeseen and erroneous protocol data at E-UTRA RLC.

8 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. In the case of a reference to a 3 GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.

9 [1] 3 GPP TR : "Vocabulary for 3 GPP Specifications". [2] 3 GPP TS : "E-UTRA and E-UTRAN Overall Description; Stage 2". 3 Definitions, symbols and abbreviations Definitions For the purposes of the present document, the terms and definitions given in TR [x] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR [x]. byte segment: A byte of an AMD PDU. Specifically byte segment #0 corresponds to the first byte of the Data field of an AMD PDU. Data field element: An RLC SDU or an RLC SDU segment that is mapped to the Data field.

10 RLC SDU segment: A segment of an RLC SDU. Abbreviations For the purposes of the present document, the following abbreviations apply: AM Acknowledged Mode AMD AM Data ARQ Automatic Repeat reQuest BCCH Broadcast Control CHannel BCH Broadcast CHannel 3 GPP 3 GPP TS (2007-12)7 Release 8T CCCH Common Control CHannel DCCH Dedicated Control CHannel DL DownLink DL-SCH DL-Shared CHannel DTCH Dedicated Traffic CHannel E Extension bit eNB E-UTRAN Node B E-UTRA evolved UMTS terrestrial Radio Access E-UTRAN evolved UMTS terrestrial Radio Access Network HARQ Hybrid ARQ