Method for providing multicast service to nomadism users and communication system

A technology for roaming users and multicast services, applied in the field of multicast, methods and communication systems, can solve problems such as providing local multicast services for users who cannot roam, and achieve the effect of improving satisfaction and satisfying comprehensiveness

Active Publication Date: 2009-11-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention provides a method and a communication system for providing multicast services to roaming users, so as to solve the problem in the prior art that the access network cannot provide local multicast services to roaming users

Method used

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  • Method for providing multicast service to nomadism users and communication system
  • Method for providing multicast service to nomadism users and communication system
  • Method for providing multicast service to nomadism users and communication system

Examples

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Embodiment Construction

[0045] In this embodiment, the multimedia broadcast / multicast service (MBMS) in the multicast service is taken as an example for illustration.

[0046] Since there is no interface between the BM-SC in the roaming network and the BM-SC in the user's home network in the prior art, the BM-SC in the roaming network cannot obtain the user's authorization from the BM-SC in the user's home network Therefore, it is impossible to provide local MBMS services to roaming users who have subscribed to MBMS services. The present invention adds an interface between BM-SCs in each network, so that the BM-SC in the visited network where the roaming user is located can interact with the BM-SC of the home network, so as to realize the communication between the BM-SC of the visiting network and the roaming user. Provides multicast services.

[0047] refer to Figure 4 As shown, interfaces are added between BM-SCs in each network. Therefore, in the case of roaming, there is an interface between t...

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Abstract

The invention discloses a method for providing multicast service to roaming users. In the method, the roaming user initiates a multicast service joining request; the GPRS support node GGSN in the visited network broadcasts the multicast service joining request to the visited network according to the multicast service joining request. / The multicast service center BM-SC initiates a multicast service authorization request; the BM-SC of the visited network interacts with the BM-SC of the user's home network, and one of the BM-SCs authorizes the user; the visited network The BM-SC decides whether to add the roaming user to the multicast group according to the authorization result. The invention also discloses a broadcast / multicast service center and a communication system at the same time.

Description

technical field [0001] The invention relates to multicast technology in the communication field, in particular to a method and a communication system for providing multicast services to roaming users. Background technique [0002] With the development of the third-generation mobile communication technology, the third-generation mobile communication can provide services with a higher data rate than the second-generation mobile communication, thereby supporting various business forms. For example, services such as video calls, picture downloads, and high-speed Internet browsing. One of the characteristics of one type of service is that the service can simultaneously send information to users who have subscribed to the service in the wireless network. For example, sending weather forecasts, news clips, sports highlights, etc. Taking advantage of the simultaneous transmission of these services, the third-generation mobile communication system introduces the concept of multicas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/38H04L12/18H04W4/06H04W8/02
Inventor 张鹏张海
Owner HUAWEI TECH CO LTD
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