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TR 25.899
High Speed Downlink Packet Access (HSDPA) enhancements

3GPP‑Page  
V6.1.0 (Wzip)  2004/09  68 p.
Rapporteur:
Mr. Fukui, Noriyuki

full Table of Contents for  TR 25.899  Word version:  6.1.0

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1  ScopeWord‑p. 6

The present document is the technical report on HSDPA (High Speed Downlink Packet Access) Enhancements for Release 6 under the study item: "Radio link performance enhancement". This TR describes enhancement technologies proposed as candidates of the improvement on HSDPA physical layer. It reports system performance gain and/or other beneficial points for each proposal. It also reports the complexity and some points changed from Release 5 to easily understand the benefits of new technologies. Furthermore, the impacts on the specification in other than physical layer are clarified.
This activity involves the Radio Access work area of the 3GPP studies and has impacts both on the Mobile Equipment and Access Network of the 3GPP systems.
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2  ReferencesWord‑p. 6

3  Definitions, symbols and abbreviationsWord‑p. 6

3.1  DefinitionsWord‑p. 6

3.2  SymbolsWord‑p. 6

3.3  AbbreviationsWord‑p. 6

4  Background and IntroductionWord‑p. 6

5  Overview of Technologies considered as EnhancementWord‑p. 7

6  Details of TechnologiesWord‑p. 10

6.1  CQI Enhancement for FDD modeWord‑p. 10

6.2  Dynamic Range Extension for the TDD CQI ReportWord‑p. 34

6.2.1  FeaturesWord‑p. 34

6.2.2  Evaluation and BenefitsWord‑p. 34

6.2.2.1  ExampleWord‑p. 34

6.2.2.2  AdvantagesWord‑p. 35

6.2.2.3  DisadvantagesWord‑p. 35

6.3  Multiple Simultaneous Transmissions to a UE in an HSDPA SubframeWord‑p. 35

6.3.1  FeaturesWord‑p. 35

6.3.2  Evaluation and BenefitsWord‑p. 36

6.3.3  Impacts on other WGsWord‑p. 36

6.4  Code Reuse for Downlink HS-DSCHWord‑p. 36

6.4.1  FeaturesWord‑p. 36

6.4.1.1  Partial Code ReuseWord‑p. 36

6.4.1.2  Full Code ReuseWord‑p. 37

6.4.2  Evaluation and BenefitsWord‑p. 37

6.4.3  Impacts on other WGsWord‑p. 37

6.5  Fast Signalling between Node-B and UEWord‑p. 37

6.5.1  FeaturesWord‑p. 37

6.5.2  Evaluation and BenefitsWord‑p. 39

6.5.3  Impacts on other WGsWord‑p. 39

6.6  Fast Adaptive EmphasisWord‑p. 39

6.6.1  FeaturesWord‑p. 39

6.6.2  Evaluation and BenefitsWord‑p. 39

6.6.3  Impacts on other WGsWord‑p. 39

6.7  ACK/NACK Transmit Power Reduction for HS-DPCCH with preamble and postambleWord‑p. 39

6.8  Fractional dedicated physical channelWord‑p. 47

6.9  HSDPA operation without an associated DPCH (TDD)Word‑p. 56

7  ConclusionWord‑p. 59

$  Change historyWord‑p. 60


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