Control channel enabling IMS for IPTV service

A control channel, application server technology, applied in the direction of electrical components, transmission systems, etc.

Inactive Publication Date: 2009-03-11
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many of these applications require a lot of communication between the STB and the different application servers, so that there are differences and establishment differences every time a new service needs to be added to the user experience using conventional IPTV systems (such as when a user is watching TV while receiving a video call). Delay in setting up of control channel and association of information required for reception

Method used

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  • Control channel enabling IMS for IPTV service
  • Control channel enabling IMS for IPTV service
  • Control channel enabling IMS for IPTV service

Examples

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Embodiment Construction

[0027] By way of a background description of the preferred embodiment, the following outlines how the IP Multimedia Subsystem (IMS) fits into the mobile network architecture in the context of the GPRS / PS access network. The Call / Session Control Function (CSCF) works as a SIP proxy within the IMS. The 3GPP architecture defines three types of CSCFs: Proxy CSCF (P-CSCF), which is the first point of contact for SIP terminals within the IMS; Serving CSCF (S-CSCF), which provides the user with the service; and an interrogating CSCF (I-CSCF), whose role is to identify the correct S-CSCF and to forward to this S-CSCF the request received from the SIP terminal via the P-CSCF.

[0028] Users use the specified SIP REGISTER method to register to IMS. This is a mechanism to connect to the IMS and notify the IMS of the addresses where the SIP user identity can be reached. The user receives a unique Uniform Resource Identifier (URI) from the S-CSCF it will use when initiating the session. ...

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Abstract

An IMS-enabled control channel for an IPTV service is provided by receiving at a Serving Call / State Control Function (S-CSCF) a Session Initiation Protocol (SIP) REGISTER message, the SIP REGISTER message identifying the originating user, receiving at the originating user a response from the S-CSCF indicating that the originating user has been authorised, and sending a SIP INVITE message from the S-CSCF to establish an open channel connection with a selected IPTV Application Server (AS). This open channel connection can then be used for the transmission of control messages, such as for starting play, starting recording, stopping play, etc., between the STB and the IPTV applications server, as well as for the delivery of personalized content, such as advertisements, voting responses, personalized voting triggers and targeted interactive events. By maintaining an open control channel with the IPTV AS, this offers a substantial reduction in the setup delay times for different applications.

Description

technical field [0001] The present invention relates to providing an IP Multimedia Subsystem (IMS) enabled control channel for IPTV services, but preferably without employing a Set Top Box (STB). Background technique [0002] IP multimedia services provide a dynamic combination of voice, video, messaging, data, etc. within the same session. By adding a large number of basic applications and possibly combined media, it is possible to increase the number of services offered to end users and thus enrich the communication experience between individuals. This will lead to a new generation of personalized rich multimedia communication services, including so-called "combined IP multimedia" services, which are discussed in more detail below. [0003] The IP Multimedia Subsystem (IMS) is a technology defined by the Third Generation Partnership Project (3GPP) for the provision of IP multimedia services over mobile communication networks (3GPP TS 22.228, TS 23.218, TS 23.228, TS 24.22...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L29/06217H04L29/06333H04L29/06326H04L29/06027H04L65/1073H04L65/1016H04L29/06523H04L65/1006H04L29/06312H04L65/1063H04L29/06197H04L65/80H04L65/1069H04L65/1104H04L65/1101
Inventor B·阿斯特龙I·M·伊瓦斯H·卡尔森Y·程K·诺曼
Owner TELEFON AB LM ERICSSON (PUBL)
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