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TR 25.999 (RAN6)
High Speed Packet Access (HSPA) evolution – Frequency Division Duplex (FDD)

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V7.1.0 (PDF)    2008/03    61 p.

Rapporteur:  Mr. Grant, Marc
See also:  –

This TR has been produced in the scope of the study item on "HSPA Evolution". The objective of the study item is to develop a framework for the evolution of the FDD mode of the 3GPP HSPA WCDMA-based radioaccess technology beyond Release 7.

This TR lists the constraints for the FDD HSPA Evolution beyond release 7 and an assessment of technical proposals and their respective, achievable performance and complexity.


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1   Scope   PDF-p. 6
2   References
3   Definitions, symbols and abbreviations
4   Introduction   PDF-p. 7
5   Objectives
6   Constraints and requirements   PDF-p. 8
7   Technical Proposals and Assessment
7.1   Architectural solutions   PDF-p. 11
7.1.1   Current Release 6 Architecture - Alt 1
7.1.2   Iu with enhanced SRNC separate from the enhanced collapsed CRNC/DRNC/Node B - Alt 2   PDF-p. 12
7.1.3   PS User Plane /Control Plane split, CP functions in RNC, direct UP tunnel PS CN - Node B - Alt 3   PDF-p. 18
7.1.4   Iu with RNC U-Plane & C-Plane functions in Node-B - Alt 4      Up
7.1.5   S1 interface architecture, i.e. SAE architecture with RLC (no-ciphering) & RRC in Node B
7.1.6   Evolved HSPA (Collapsed Architecture) with SHO - Considerations with connectivity to evolved CN   PDF-p. 34
7.1.7   Enhanced SRNS relocation procedure   PDF-p. 37
7.2   Interworking with legacy UTRAN nodes
7.3   Support of UL Macro Diversity Combining   PDF-p. 44
7.4   RNC ID Extension   PDF-p. 46
7.5   Layer 2 Enhancements   PDF-p. 52
7.6   UL Enhancements   PDF-p. 53
7.7   Radio Related Enhancements      Up
7.8   MBMS   PDF-p. 57
8   Conclusions and Recommendations
A   Change history   PDF-p. 59

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