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16.7 64Qam for 1.28 Mcps tdd hsdpa uid_380075

Resources: R1

References

Document

Title/Contents

WID(s)

RP-070924

WID on 64QAM for 1.28Mcps TDD HSDPA

Impacted Specifications

TS 25.102

User Equipment (UE) radio transmission and reception (TDD)

TS 25.105

Base Station (BS) radio transmission and reception (TDD)

TS 25.123

Requirements for support of radio resource management (TDD)

TS 25.142

Base Station (BS) conformance testing (TDD)

TS 25.201

Physical layer - general description

TS 25.221

Physical channels and mapping of transport channels onto physical channels (TDD)

TS 25.222

Multiplexing and channel coding (TDD)

TS 25.223

Spreading and modulation (TDD)

TS 25.224

Physical layer procedures (TDD)

TS 25.306

UE Radio Access capabilities

TS 25.308

High Speed Downlink Packet Access (HSDPA); Overall description; Stage 2

TS 25.321

Medium Access Control (MAC) protocol specification

TS 25.331

Radio Resource Control (RRC); Protocol specification

TS 25.423

UTRAN Iur interface Radio Network Subsystem Application Part (RNSAP) signalling

TS 25.433

UTRAN Iub interface Node B Application Part (NBAP) signalling

New Dedicated Specifications/Reports

-

-

Supporting Individual Members: RITT, CATT, TD-TECH, Spreadtrum Communications.

UID

Name

Resource

Hyperlink

Status_Report

TS_TR

380075

64QAM for 1.28 Mcps TDD HSDPA

R1

RP-070924

RP-080806

25.102, 25.105, 25.123, 25.142, 25.201, 25.221, 25.222, 25.223, 25.224, 25.306, 25.308, 25.321, 25.331, 25.423, 25.433

400057

Conformance Test Aspects – 64QAM for 1.28 Mcps TDD HSDPA

R5

RP-080334

RP-090415

34.108, 34.122, 34.123-1, 34.123-2, 34.123-3

This work is linked to Rel-8 Study on Scope of future HSPA Evolution for 1.28 Mcps TDD (UID_370041) TR 25.824 (Scope of HighSpeed Packet Access (HSPA) Evolution for 1.28Mcps TDD).

The use of 64QAM in the downlink is an attractive complement to multi-antenna techniques (MIMO) in the downlink, e.g. in scenarios where deployment of MIMO is not possible.

TR 25.824 shows significant gains provided by 64QAM in scenarios where users can benefit in terms of increased throughput from favourable radio conditions such as in indoor system solutions or well tuned outdoor systems.

This work adds support of 64QAM as a downlink modulation scheme for HSDPA in TDD including specification of:

  • L1 aspects of 64QAM

  • L2/L3 aspects of 64QAM

  • Iub/Iur support for 64QAM

  • BS and UE requirements for 64QAM for an agreed set of radio conditions/environments.

  • Requirement set point to take the BTS impairments into account

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