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3GPP TR 25.877 V5.1.0
(2002-06)
Technical Report
3rd Generation Partnership Project;
Technical Specification Group Radio Access Network;
High Speed Downlink Packet Access:
Iub/Iur protocol aspects
(Release 5)
The present document has been developed within the 3
rd
Generation Partnership Project (3GPP
TM
) and may be further elaborated for the purposes of 3GPP.
The present document has not been subject to any approval process by the 3GPP
Organizational Partners and shall not be implemented.
This Specification is provided for future development work within 3GPP
only. The Organizational Partners accept no liability for any use of this
Specification.
Specifications and reports for implementation of the 3GPP
TM
system should be obtained via the 3GPP Organizational Partners' Publications Offices.
3GPP
Keywords
UMTS, HSDPA
3GPP
Postal address
3GPP 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
http://www.3gpp.org
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.
© 2002, 3GPP Organizational Partners (ARIB, CWTS, ETSI, T1, TTA, TTC).
All rights reserved.
3GPP TR 25.877 V5.1.0 (2002-06)2Release 5
Contents
Foreword...................................................................................................................................................5
1 Scope......................................................................................................................................................6
2 References..............................................................................................................................................6
3 Definitions, symbols and abbreviations..................................................................................................6
3.1 Definitions..............................................................................................................................................................6
3.2 Symbols..................................................................................................................................................................7
3.3 Abbreviations.........................................................................................................................................................7
4 Background and Introduction.................................................................................................................7
5 Requirements.........................................................................................................................................7
6 Study Areas............................................................................................................................................8
6.1 Impacts on Iub Interface - General Aspects...........................................................................................................8
6.2 Impacts on Iub/Iur Control Plane Protocols.........................................................................................................10
6.2.1 HSDPA Signalling Requirements (Comparison between DSCH and HS-DSCH)...........................................10
6.2.2 Impacts on NBAP Procedures...........................................................................................................................12
6.2.2.1 Impacts on Dedicated NBAP Procedures and Message Contents.................................................................12
6.2.2.1.1 DSCH-related IEs in RNSAP......................................................................................................................13
6.2.2.1.2 Proposed HS-DSCH-related IEs for NBAP for Downlink Signalling........................................................14
6.2.2.1.3 Proposed HS-DSCH-related IEs for NBAP for Uplink Signalling.............................................................21
6.2.2.2 Impacts on Dedicated RNSAP Procedures and Message Contents...............................................................21
6.2.2.3 NBAP cell-level configuration handling........................................................................................................22
6.2.2.3.1 FDD 22
6.2.2.3.2 TDD 23
6.2.3 Example of HS-DSCH Configuration and Capacity Allocation.......................................................................25
6.2.4 Examples of HS-DSCH Mobility Procedures...................................................................................................27
6.2.4.1 Intra-Node B serving HS-DSCH cell change.................................................................................................27
6.2.4.2 Inter-Node B serving HS-DSCH cell change.................................................................................................28
6.2.4.3 Inter-Node B serving HS-DSCH cell change at hard handover.....................................................................30
6.2.4.4 Inter-Node B serving HS-DSCH cell change after radio link addition..........................................................34
6.2.5 Open Issues.......................................................................................................................................................35
6.3 Impacts on Iub Interface User Plane Protocols....................................................................................................36
6.3.1 Transport Bearer Options..................................................................................................................................36
6.3.1.1 Option 1 - One Transport Bearer per HS-DSCH Transport Channel............................................................36
6.3.1.1.1 Frame Protocol Aspects for HS-DSCH.......................................................................................................36
6.3.1.1.2 Data Frame Format for HS-DSCH Frame Protocol....................................................................................36
6.3.1.1.3 Control Frame Format for HS-DSCH Frame Protocol...............................................................................38
6.3.1.1.4 Open Issues.................................................................................................................................................39
6.3.1.2 Option 2 - One Transport Bearer for Multiple MAC-d flows for Multiple UE's...........................................39
6.3.1.2.1 Frame Protocol Aspects for HS-DSCH.......................................................................................................39
6.3.1.2.2 Data Frame Format for HS-DSCH Frame Protocol....................................................................................40
Description: Indicates the location where new IEs can in the future be added in a backward compatible
way...............................................................................................................................................43
Field length: 0-2 octets............................................................................................................................43
6.3.1.2.3 Control Frame Format for HS-DSCH Frame Protocol...............................................................................43
6.3.1.2.4 Open Issues.................................................................................................................................................43
6.3.1.3 Inter-operability of Options 1 and 2...............................................................................................................43
6.3.1.3.1 Signalling Flow Cases.................................................................................................................................44
6.3.2 Flow Control Options........................................................................................................................................46
6.3.2.1 Option 1 - Credit Based Flow Control...........................................................................................................46
6.3.2.1.1 HS-DSCH Data Transfer.............................................................................................................................46
6.3.2.1.2 HS-DSCH Capacity Request.......................................................................................................................47
6.3.2.1.3 HS-DSCH Capacity Allocation...................................................................................................................47
6.4 QoS Aspects.........................................................................................................................................................47
3GPP
3GPP TR 25.877 V5.1.0 (2002-06)3Release 5
6.5 TDD versus FDD Aspects....................................................................................................................................48
6.6 Backwards Compatibility.....................................................................................................................................48
7 Agreements and associated contributions.............................................................................................48
8 Specification Impact and associated Change Requests.........................................................................48
Annex A: Change History.....................................................................................................................49
3GPP
3GPP TR 25.877 V5.1.0 (2002-06)4Release 5
Foreword
This Technical Report has been produced by the 3
rd
Generation Partnership Project (3GPP).
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 x.y.z
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.
y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,
updates, etc.
z the third digit is incremented when editorial only changes have been incorporated in the document.
3GPP
3GPP TR 25.877 V5.1.0 (2002-06)5Release 5
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