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UMTS); Radio Interface Protocol Architecture (3GPP TS 25.301 Version 4.2.0 Release 4) ETSI TS 125 301 V4.2.0 (2001-12) Technical Specification Universal Mobile Telecommunications System (UMTS); Radio Interface Protocol Architecture (3GPP TS 25.301 version 4.2.0 Release 4) 3 GPP TS 25.301 version 4.2.0 Release 4 1 ETSI TS 125 301 V4.2.0 (2001-12) Reference RTS/TSGR-0225301Uv4R2 Keywords UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, send your comment to: [email protected] Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. © European Telecommunications Standards Institute 2001. All rights reserved. ETSI 3 GPP TS 25.301 version 4.2.0 Release 4 2 ETSI TS 125 301 V4.2.0 (2001-12) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http://webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under www.etsi.org/key . ETSI 3 GPP TS 25.301 version 4.2.0 Release 4 3 ETSI TS 125 301 V4.2.0 (2001-12) Contents Intellectual Property Rights................................................................................................................................2 Foreword.............................................................................................................................................................2 Foreword.............................................................................................................................................................5 1 Scope ........................................................................................................................................................6 2 References ................................................................................................................................................6 3 Definitions and abbreviations...................................................................................................................6 3.1 Definitions..........................................................................................................................................................6 3.2 Abbreviations .....................................................................................................................................................7 4 Assumed UMTS Architecture..................................................................................................................8 5 Radio interface protocol architecture .......................................................................................................9 5.1 Overall protocol structure...................................................................................................................................9 5.1.1 Service access points and service primitives ..............................................................................................10 5.2 Layer 1 Services and Functions........................................................................................................................11 5.2.1 L1 Services .................................................................................................................................................11 5.2.1.1 Transport channels ................................................................................................................................12 5.2.2 L1 Functions ...............................................................................................................................................12 5.3 Layer 2 Services and Functions........................................................................................................................13 5.3.1 MAC Services and Functions .....................................................................................................................13 5.3.1.1 MAC Services to upper layers ..............................................................................................................13 5.3.1.1.1 Logical channels..............................................................................................................................13 5.3.1.1.2 Mapping between logical channels and transport channels.............................................................15 5.3.1.1.2.1 Mapping in Uplink.....................................................................................................................15 5.3.1.1.2.2 Mapping in Downlink................................................................................................................15 5.3.1.2 MAC functions......................................................................................................................................16 5.3.2 RLC Services and Functions.......................................................................................................................17 5.3.2.1 Services provided to the upper layer .....................................................................................................17 5.3.2.2 RLC Functions ......................................................................................................................................18 5.3.3 PDCP Services and Function......................................................................................................................19 5.3.3.1 PDCP Services provided to upper layers ..............................................................................................19 5.3.3.2 PDCP Functions....................................................................................................................................19 5.3.4 Broadcast/Multicast Control - Services and functions................................................................................19 5.3.4.1 BMC Services .......................................................................................................................................19 5.3.4.2 BMC Functions.....................................................................................................................................19 5.3.5 Data flows through Layer 2 ........................................................................................................................20 5.3.5.1 Data flow for BCCH mapped to BCH...................................................................................................22 5.3.5.2 Data flow for BCCH mapped to FACH ................................................................................................22 5.3.5.3 Data flow for PCCH mapped to PCH ...................................................................................................22 5.3.5.4 Data flow for CCCH mapped to FACH/RACH....................................................................................22 5.3.5.5 Data flow for SHCCH mapped to USCH..............................................................................................22 5.3.5.6 Data flow for SHCCH mapped to FACH/RACH..................................................................................22 5.3.5.7 Data flow for DCCH mapped to FACH/RACH....................................................................................23 5.3.5.8 Data flow for DCCH mapped to DSCH................................................................................................23 5.3.5.9 Data flow for DCCH mapped to USCH................................................................................................23 5.3.5.10 Data
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