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Implementing method, system and apparatus for multimedia broadcast/multicast service

A technology for multimedia broadcasting and multicasting services, applied in the field of realization of multimedia broadcasting/multicasting services

Active Publication Date: 2009-01-07
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] In view of this, the technical problem to be solved by the embodiment of the present invention is to provide a method, system and device for implementing multimedia broadcast / multicast services, which overcome the existing Insufficiency that IP multicast cannot be used for data plane transmission based on GTP protocol between MBMS core network and access network

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  • Implementing method, system and apparatus for multimedia broadcast/multicast service

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Embodiment Construction

[0033] The present invention will be described in detail below with preferred embodiments in conjunction with the accompanying drawings.

[0034] First of all, it is necessary to explain the format of the existing GTP header; image 3 Shown is a schematic diagram of extending the existing GTP header format. Wherein, the 4th bit is the bit to be extended, there is no processing at present, it can be extended to distinguish unicast data packets and MBMS data packets in the present invention; or the reserved use value (ex 8 in the message type (Message Type) can also be adopted -15) to distinguish unicast data packets and MBMS data packets; even in some other embodiments, new ports can be used to distinguish unicast data packets and MBMS data packets; in addition, in the existing GTP header format, at The 5th to 8th bytes are filled with TEID to uniquely mark a bearer; in the embodiment of the present invention, when using local IP multicast to transmit data between the core net...

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Abstract

The invention discloses a method for realizing multimedia broadcasting / multicast service, which comprises that: in the dialog-start flow, the carrying between the user equipment in the accessing network and BM-SC in the core network is established, and the local IP multicast relation between the interface network element of the core network and the interface network element of the accessing network; in the process of data transmission, according to the local IP multicast relation established in the dialog-start flow, by means of IP multicast, the interface network element of the core network sends the multi-media broadcasting / multicast data package received from BM-SC to various interface network elements of the accessing networks which join in the local IP multicast, and the interface network element of the accessing network sends the multi-media broadcasting / multicast data package to the corresponding user equipment. The invention further discloses a system for realizing the multi-media broadcasting / multicast service and a device thereof. The GTP head is modified so as to facilitate the GTP head to be carried by the IP multicast, the resource utilization efficiency between the core network and the accessing network can be improved, and the burden of the transmission network is lowered.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a method, system and device for realizing a Multimedia Broadcast / Multicast Service (MBMS) service. Background technique [0002] Multicast and broadcast are technologies for transmitting data packets from one data source to multiple destinations. With the rapid development of the Internet, a large number of multimedia services emerge, some of which require multiple users to receive the same data at the same time, such as video on demand, TV broadcast, video conferencing, online education or interactive games. In order to effectively utilize mobile network resources, the Third Generation Partnership Projects (ThirdGeneration Partnership Projects, 3GPP) proposed a multimedia broadcast / multicast service, that is, a point-to-multipoint point-to-multipoint service that provides a data source in a mobile network to send data to multiple users business, realize network resou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04Q7/38H04W4/06
Inventor 王兢杨建
Owner HUAWEI TECH CO LTD
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