tech-invite   World Map
3GPP     Specs     Glossaries     Architecture     IMS     UICC       IETF     RFCs     Groups     SIP     ABNFs       Search     Home
Top        in Index        Prev        Next

TR 29.806 (CT4)
Study on IMS Proxy Call Session Control Function (P-CSCF) restoration procedures

|   ToC   |   3GPP‑Page   |   Help   |

(W-zip) V12.1.0    2015/01    62 p.

Rapporteur:  Ms. Bartolome, Maria-Cruz
See also:  –

The present document analyses existing P-CSCF restoration mechanism limitations and drawbacks, as defined by TS 23.380 and TS 24.229, and proposes alternative solutions that could minimize such limitations.

Expected output from this document is a proposal of an enhanced P-CSCF restoration mechanism.


Here        Top



1   Scope   Word-p. 7
2   References
3   Abbreviations
4   Existing restoration procedures   Word-p. 8
5   Objectives   Word-p. 15
6   Solution alternatives   Word-p. 16
6.1   Introduction      Up
6.2   Sol-A: Double IMS registration
6.3   Sol-B: Alternative P-CSCF and PCRF based restoration
6.4   Sol-C: Alternative with AS (via ISC and Sh)
6.5   Sol-D: Alternative with direct Cx communication   Word-p. 32
6.6   P-CSCF restart case   Word-p. 43
7   Conclusions   Word-p. 45
7.1   Comparison analysis
7.2   Final conclusion   Word-p. 56
A   Solution D extension for non-3GPP access   Word-p. 58
B   Change history   Word-p. 61

Up        Top