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TR 23.772 (SA2) ☆ (Rel-13 draft)
enhanced Circuit Switched FallBack

use "3GPP‑Page" to get the Word version
for a better overview, the Table of Contents (ToC) is reproduced
V1.0.0 (Wzip)  2014/12  44 p.

Rapporteur:  group chairman

The present document studies enhancements for CSFB in the interest of shortening the call setup time. Based on the technical analysis, any needed enhancements/updates to 3GPP functions and interfaces are identified.
There shall be no UE impact.
Normative specifications may be developed based on the conclusions of the present document.

full Table of Contents for  TR 23.772  Word version:   1.0.0

 

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1  ScopeWord-p. 6
2  References
3  Definitions, symbols and abbreviationsWord-p. 7
4  Architectural Requirements
5  SolutionsWord-p. 8
5.1  Solution #1: SRVCC based eCSFB Solution
5.2  Solution #2: SRVCC based eCSFB Solution with proper CS resource allocationWord-p. 14
5.3  Solution #3: Enabling target cell(s) system information provision
5.4  Solution #4: UE radio capabilities consideration during PLMN and RAT selection
5.5  Solution #5: Optimised CSFB Procedure
5.6  Solution #6: SRVCC based eCSFB Solution with IMS-#I
5.7  Solution #7: CS security key derivation for CSFB
5.8  Overall evaluationWord-p. 37
6  Conclusions
A  Possible CSFB optimisations
B  Specification changes required for UE radio capabilities consideration during PLMN and RAT selection solutionWord-p. 38
C  Change historyWord-p. 44

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