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Control of parameter negotiation for communication connections

A parameter and communication network technology, which is applied to control the media transmission path of the session, control the parameter negotiation field in the communication connection, and achieve the effect of optimizing the media

Active Publication Date: 2017-02-15
NOKIA NETWORKS OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As an unfortunate side effect, the user plane is forced to traverse the same network as the signaling plane, even though much shorter user plane paths would otherwise be possible, e.g. if the calling and called parties are on the same visited network or corporate network, but the signaling involved still needs to traverse their home IMS network

Method used

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  • Control of parameter negotiation for communication connections
  • Control of parameter negotiation for communication connections
  • Control of parameter negotiation for communication connections

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0081] Example 1 (the one proposed by the user is coded):

[0082] Media row:

[0083] m=audio 49120 RTP / AVP 97

[0084] (where 97 indicates the format number of the proposed codec)

[0085] line a:

[0086] a=origcodec 97

[0087] ("origcodec" is an instance text that can be used to indicate that the codec originates from the UE)

example 2

[0088] Example 2 (a codec proposed by the network):

[0089] Media row:

[0090] m=audio 49120 RTP / AVP 97

[0091] line a:

[0092] a=transcodec 97

[0093] ("transcodec" is an instance text that can be used to indicate that a codec has been proposed by the network)

[0094] Example 3 (two codecs. One codec proposed by the network and one codec proposed by the user):

[0095] Media line:

[0096] m=audio 49120 RTP / AVP 0 97

[0097] (where 0 and 97 indicate the format number of the proposed codec)

[0098] line a:

[0099] a=transcodec 97

[0100] a=origcodec 0.

[0101] Figure 1b Illustrated with Figure 1a Compared to the more optimal case, where, according to aspects of the invention, when SBC-1 adds GW-1 to the user plane path (and thus adds the associated codec in the SDP), SBC-1 can also do Flag: This codec has been added by a network element. SBC-3 may detect in call setup signaling received (via SBC-2) from SBC-1 that GW-1 has been added to the user plane pat...

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Abstract

The present invention relates to a session control entity, method and computer program product for transmitting a request comprising parameters related to the establishment of a media transmission received instructions. The invention is particularly useful for 3GPP optimized media routing.

Description

technical field [0001] The invention relates to a mechanism for controlling the negotiation of parameters in a communication connection. In particular, the invention relates to a method and a device for controlling the negotiation of parameters in a communication connection, in particular controlling the media transmission path of a session. Background technique [0002] Over the past few years, an ever-increasing expansion of communication networks has occurred throughout the world, for example wire based communication networks such as Integrated Services Digital Networks (ISDN), or such as cdma 2000 (code Multiple Access) systems, cellular third-generation (3G) communication networks like Universal Mobile Telecommunications System (UMTS), cellular second-generation (2G) communication networks like Global System for Mobile Communications (GSM), general packet The increasing use of wireless communication networks such as GPRS, Enhanced Data Rates for Global Evolution (EDGE)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04W8/08
CPCH04W80/10H04L65/1016H04L65/1069H04W76/12H04L65/1066
Inventor A.博埃索尔门伊R.鲁兹齐卡
Owner NOKIA NETWORKS OY
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