1、 ETSI TS 125 309 V6.1.0 (2004-12)Technical Specification Universal Mobile Telecommunications System (UMTS);FDD enhanced uplink;Overall description;Stage 2(3GPP TS 25.309 version 6.1.0 Release 6)ETSI ETSI TS 125 309 V6.1.0 (2004-12) 1 3GPP TS 25.309 version 6.1.0 Release 6 Reference RTS/TSGR-0225309v
2、610 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 but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the pres
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6、 by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2004. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTMand the TIPHON
7、 logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI TS 125 309 V6.1.0 (2004-12) 2 3GPP TS 25.309 version 6.1.0 Release 6 Intellectual Prope
8、rty 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); Es
9、sential, 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, h
10、as 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 E
11、TSI 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
12、, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp . ETSI ETSI TS 125 309 V6.1.0 (2004-12) 3 3GPP TS 25.309 version 6.1.0 Release 6 Contents Intellectual Property Rights2 Foreword.2 Foreword.5 1 Scope 6 2 References 6 3 Definitions and abbreviations.6 3.1 Def
13、initions6 3.2 Abbreviations .6 4 Background and Introduction.7 5 Requirements7 6 Overall architecture of enhanced uplink DCH .8 6.1 Protocol architecture.8 6.2 Transport channel attributes .8 6.3 Basic physical structure9 6.3.1 UL Physical layer model.9 6.3.2 DL Physical layer model.9 7 MAC architec
14、ture.11 7.1 General Principle11 7.1.1 MAC multiplexing11 7.1.2 Reordering entity 11 7.2 MAC architecture UE side 11 7.2.1 Overall architecture.11 7.2.2 Details of MAC-d .12 7.2.3 Details of MAC-c/sh.13 7.2.4 Details of MAC-hs13 7.2.5 Details of MAC-es/MAC-e.13 7.3 MAC architecture UTRAN side14 7.3.1
15、 Overall architecture.14 7.3.2 Details of MAC-d .16 7.3.3 Details of MAC-c/sh.17 7.3.4 Details of MAC-hs17 7.3.5 Details of MAC-es17 7.3.6 Details of MAC-e .18 8 HARQ protocol 19 8.1 General Principle19 8.2 Error handling 20 8.3 Signalling .20 8.3.1 Uplink .20 8.3.2 Downlink 20 9 Node B controlled s
16、cheduling 20 9.1 General Principle20 9.2 UE scheduling operation 21 9.2.1 Grants from the Serving RLS .21 9.2.2 Grants from the Non-serving RLS22 9.3 Signalling .22 9.3.1 Uplink .22 9.3.2 Downlink 22 10 QoS control 23 10.1 General Principle23 10.1.1 QoS configuration principles 23 ETSI ETSI TS 125 3
17、09 V6.1.0 (2004-12) 4 3GPP TS 25.309 version 6.1.0 Release 6 10.2 TFC and E-TFC selection.23 10.3 Setting of Power offset attributes of MAC-d flows24 11 Signalling parameters.24 11.1 Uplink signalling parameters24 11.2 Downlink signalling parameters.24 12 Mobility procedures .25 Annex A (informative
18、): Change history .26 History 27 ETSI ETSI TS 125 309 V6.1.0 (2004-12) 5 3GPP TS 25.309 version 6.1.0 Release 6 Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG
19、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 informat
20、ion; 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 inco
21、rporated in the document. ETSI ETSI TS 125 309 V6.1.0 (2004-12) 6 3GPP TS 25.309 version 6.1.0 Release 6 1 Scope The present document is a technical specification of the overall support of FDD Enhanced Uplink in UTRA. 2 References The following documents contain provisions which, through reference i
22、n 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.
23、 In the case of a reference to a 3GPP 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. 1 3GPP TR 25.896: “Feasibility Study for Enhanced Uplink for UTRA FDD“. 2 3GPP TR 21.905: “Vocabul
24、ary for 3GPP Specifications“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 2 and the following apply: E-DCH: Enhanced DCH, a new dedicated transport channel type or enhancements to an existing dedicated tr
25、ansport channel type. E-DCH active set: The set of cells which carry the E-DCH for one UE. HARQ profile: One HARQ profile consists of a power offset attribute and maximum number of transmissions. Power offset attribute: Represents the power offset between E-DPDCH(s) and reference E-DPDCH power level
26、 for a given E-TFC. This power offset attribute is set to achieve the required QoS in this MAC-d flow when carried alone in a MAC-e PDU and subsequently in the corresponding CCTrCh of E-DCH type. Details on the mapping on Beta factors can be found in RAN WG1 specifications. The reference E-DPDCH pow
27、er level for a given E-TFC is derived from the beta factor signaled to the UE for a reference E-TFC (see details in subclause 10.1). Serving E-DCH cell: Cell from which the UE receives Absolute Grants from the Node-B scheduler. A UE has one Serving E-DCH cell. Serving E-DCH RLS or Serving RLS: Set o
28、f cells which contains at least the Serving E-DCH cell and from which the UE can receive and combine one Relative Grant. The UE has only one Serving E-DCH RLS. Non-serving E-DCH RLS or Non-serving RLS: Set of cells which does not contain the Serving E-DCH cell and from which the UE can receive and c
29、ombine one Relative Grant. The UE can have zero, one or several Non-serving E-DCH RLS. 3.2 Abbreviations For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 2 and the following apply: AG Absolute Grant ETSI ETSI TS 125 309 V6.1.0 (2004-12) 7 3GPP TS 25.309 version 6.1
30、.0 Release 6 E-AGCH E-DCH Absolute Grant Channel E-DPCCH E-DCH Dedicated Physical Control Channel E-DPDCH E-DCH Dedicated Physical Data Channel E-HICH E-DCH HARQ Acknowledgement Indicator Channel E-RGCH E-DCH Relative Grant Channel E-RNTI E-DCH Radio Network Temporary Identifier E-TFC E-DCH Transpor
31、t Format Combination HARQ Hybrid Automatic Repeat Request HSDPA High Speed Downlink Packet Access RG Relative Grant RLS Radio Link Set RSN Retransmission Sequence Number SG Serving Grant TSN Transmission Sequence Number 4 Background and Introduction The technical objective of the FDD Enhanced Uplink
32、 work item is to improve the performance of uplink dedicated transport channels, i.e. to increase capacity and throughput and reduce delay. This work item is applicable for UTRA FDD only. Among the techniques considered in 1, the following techniques are part of the work item: - Node B controlled sc
33、heduling: possibility for the Node B to control, within the limits set by the RNC, the set of TFCs from which the UE may choose a suitable TFC, - Hybrid ARQ: rapid retransmissions of erroneously received data packets between UE and Node B, - Shorter TTI: possibility of introducing a 2 ms TTI. 5 Requ
34、irements - The Enhanced Uplink feature shall aim at providing significant enhancements in terms of user experience (throughput and delay) and/or capacity. The coverage is an important aspect of the user experience and that it is desirable to allow an operator to provide for consistency of performanc
35、e across the whole cell area. - The focus shall be on urban, sub-urban and rural deployment scenarios. - Full mobility shall be supported, i.e., mobility should be supported for high-speed cases also, but optimisation should be for low-speed to medium-speed scenarios. - The study shall investigate t
36、he possibilities to enhance the uplink performance on the dedicated transport channels in general, with priority to streaming, interactive and background services. Relevant QoS mechanisms shall allow the support of streaming, interactive and background PS services. - It is highly desirable to keep t
37、he Enhanced Uplink as simple as possible. New techniques or group of techniques shall therefore provide significant incremental gain for an acceptable complexity. The value added per feature/technique should be considered in the evaluation. It is also desirable to avoid unnecessary options in the sp
38、ecification of the feature. - The UE and network complexity shall be minimised for a given level of system performance. - The impact on current releases in terms of both protocol and hardware perspectives shall be taken into account. - It shall be possible to introduce the Enhanced Uplink feature in
39、 a network which has terminals from Release“99, Release 4 and Release 5. The Enhanced Uplink feature shall enable to achieve significant improvements in overall system performance when operated together with HSDPA. Emphasis shall be given on the potential impact the new feature may have on the downl
40、ink capacity. Likewise it shall be possible to deploy the Enhanced Uplink feature without any dependency on the deployment of the HSDPA feature. ETSI ETSI TS 125 309 V6.1.0 (2004-12) 8 3GPP TS 25.309 version 6.1.0 Release 6 6 Overall architecture of enhanced uplink DCH 6.1 Protocol architecture The
41、following modifications to the existing nodes are needed to support enhanced uplink DCH: UE A new MAC entity (MAC-es/MAC-e) is added in the UE located below MAC-d. MAC- es/MAC-e in the UE handles HARQ retransmissions, scheduling and MAC-e multiplexing,E-DCH TFC selection. Node B A new MAC entity (MA
42、C-e) is added in Node B which handles HARQ retransmissions, scheduling and MAC-e demultiplexing. S-RNC A new MAC entity (MAC-es) is added in the SRNC to provide in-sequence delivery (reordering) and to handle combining of data from different Node Bs in case of soft handover. The resulting protocol a
43、rchitecture is shown in Figure 6.1-1: PHY PHY EDCH FP EDCH FP Iub UE NodeB Uu DCCH DTCH TNL TNL DTCH DCCH MAC-e SRNC MAC-d MAC-e MAC-d MAC-es / MAC-e MAC-es Iur TNL TNL DRNC Figure 6.1-1: Protocol Architecture of E-DCH The need for an E-DCH FP in the DRNC has to be discussed (this is under the scope
44、 of RAN WG3). 6.2 Transport channel attributes The E-DCH transport channel has the following characteristics: - E-DCH and DCH are using separate CCTrCHs - There is only one CCTrCH of E-DCH type per UE; - There is only one E-DCH per CCTrCH of E-DCH type; - There is only one transport block per TTI; E
45、TSI ETSI TS 125 309 V6.1.0 (2004-12) 9 3GPP TS 25.309 version 6.1.0 Release 6 - Both 2 ms TTI and 10 ms TTI are supported by the E-DCH. The support of 10 ms TTI is mandatory for all UEs. The support of 2 ms by the UEs is FFS (always optional or mandatory for high UE categories). 6.3 Basic physical s
46、tructure 6.3.1 UL Physical layer model E-DCH model with DCH and HS-DSCH Coded Composite Transport Channel CCTrCH) Phy CH Phy CH TPC - Multiple MAC-d flows can be configured for one UE; - The multiplexing of different MAC-d flows within the same MAC-e PDU is supported. But not all the combinations ma
47、y be allowed for one UE. The allowed combinations are under the control of the SRNC. (See in clause 10) - There can be up to 8 MAC-d flows for a UE. 7.1.2 Reordering entity The re-ordering entity is part of a separate MAC sub-layer,MAC-es, in the SRNC. Data coming from different MAC-d flows are reor
48、dered in different reordering queues. There is one reordering queue per logical channel. The reordering is based on a specific TSN included in the MAC-e PDU and on Node-B tagging with a (CFN, subframe number). For each MAC-es PDU, the SRNC receives the TSN originating from the UE, as well as the (CF
49、N, subframe number) originating from the Node-B to perform the re-ordering. Additional mechanisms (e.g. timer-based and/or window-based) are up to SRNC implementation and will not be standardised. 7.2 MAC architecture UE side 7.2.1 Overall architecture The overall UE MAC architecture, which is shown in Figure 7.2.1-1, includes a new MAC-es/MAC-e entity which controls access to the E-DCH. A new connection from MAC-d to MAC-es/MAC-e is added to the architecture, as well as a connection between MAC-es/MAC-e and the MAC Control SAP. Associated Downlink Signall
