A METHOD, SYSTEM AND ENTITY FOR MEDIA NEGOTIATION

Title:

A METHOD, SYSTEM AND ENTITY FOR MEDIA NEGOTIATION

Document Type and Number:

WIPO Patent Application WO/2007/085184

Kind Code:

A1

Abstract:

A method for media negotiation. The method includes: AF (Application Function) sends to PDF (Policy Decision Function)/SPDF (Service-based PDF) a resource requirement message with bandwidth requirement scope parameters of the media type, the PDF/SPDF makes the policy analysis, gets the available bandwidth which meets the bandwidth requirement scope for the requiring user, and then replies the available bandwidth to AF. AF ascertains or changes the coding/decoding mode for the media type according to the available bandwidth. The present invention also provides a system, AF, PDF/SPDF and A-RACF corresponding to the method.

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Inventors:

WANG YING (CN)
SHI YOUZHU (CN)

Application Number:

PCT/CN2007/000232

Publication Date:

August 02, 2007

Filing Date:

January 22, 2007

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)
WANG YING (CN)
SHI YOUZHU (CN)

International Classes:

H04L29/06

Foreign References:

US20060002333A1	2006-01-05
US20050073997A1	2005-04-07
US20050041584A1	2005-02-24
CN1695391A	2005-11-09
US20050201414A1	2005-09-15
CN1490980A	2004-04-21

Other References:

3GPP TS 23.207 V6.2.0, March 2004 (2004-03-01), XP003016249

Attorney, Agent or Firm:

DEQI INTELLECTUAL PROPERTY LAW CORPORATION (No. 1 Zhichun Road Haidian District, Beijing 3, CN)

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