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TR 25.844 (RAN6)
Radio acces bearer support enhancements

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(W-zip) V4.3.0    2002/09    30 p.


Rapporteur:  Mr. Krishnarajah, Ainkaran
See also:  –


This document is a technical report that summarises the work on the UTRAN Release 2000 work item "Radio Access Bearer Support Enhancements". The areas of study are the following:
  • Robust header compression
  • PDCP multiplexing
  • Variable Iu frame formats and unequal error protection over Uu
  • Channel type switching per logical channel
  • Header removal
Each study area includes the requirements of the proposed feature, a description of the basic mechanism and a discussion of the issues involved. A recommended solution is provided and impacts to other RAN WGs are analysed.


 

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1   Scope   Word-p. 6
2   References
3   Abbreviations   Word-p. 7
4   Requirements
5   Study Areas
5.1   Robust header compression
5.1.1   Introduction
5.1.2   Existing header compression schemes   Word-p. 8
5.1.3   IETF Robust header compression working group
5.1.4   ROHC compression and decompression states      Up
5.1.5   Modes and mode transitions
5.1.6   State transitions   Word-p. 10
5.1.7   Packet types
5.1.8   Packet formats
5.1.9   Packet format description   Word-p. 13
5.1.10   ROHC Configuration
5.1.11   ROHC primitives and parameters      Up
5.1.13   ROHC Reconfiguration   Word-p. 20      Up
5.1.14   ROHC with SRNS relocation
5.2   PDCP multiplexing
5.3   Variable Iu frame formats and unequal error protection
5.4   Channel type switching per logical channel
5.5   Header removal
6   Impacts on RAN WGs
7   Recommendations
8   Release 99 Specification impacts
A   Change history   Word-p. 30

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