Mobile multicast switching method, system and relevant equipment
A mobile access gateway and multicast technology, applied in electrical components, wireless communication, connection management, etc., can solve the problems of multicast data delay and loss, and achieve the effect of reducing transmission delay and loss
Active Publication Date: 2010-12-08
CHINA MOBILE COMM GRP CO LTD
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[0041] In the existing PMIPv6-based mobile multicast handover process, when a mobile multicast node switches from p-MAG to n-MAG, n-MAG needs to first obtain the multicast status information of the mobile multicast node, and request Join a multicast group and establish a bidirectional tunnel between n-MAG and LMA. After the bidirectional tunnel between n-MAG and LMA is successfully established, multicast data transmission can continue, which inevitably causes mobile multicast switching The delay and loss of multicast data during the process reduces the performance of mobile multicast.
[0042] In order to solve the problem of delay and loss of multicast data during the handover process of mobile multicast, so that the mobile multicast node can continuously receive multicast data during the handover process, the embodiment of the present invention proposes: using HI (Handover Initiate, handover initiation) signal Command message and HA (Handover Acknowledgment, handover respons...
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The invention discloses a mobile multicast switching method, a mobile multicast switching system and mobile multicast switching equipment in order to solve the problems of delay and loss of multicast data in the traditional mobile multicast switching process. The method comprises the following steps that: according to switch-to-second MAG request identifier information reported when a mobile multicast node initiates switching, a first MAG sends a first HI signaling message to a second MAG so as to request the establishment of a first bidirectional tunnel between the first and second MAGs; according to the received first HI signaling message, the second MAG establishes the first bidirectional tunnel and feeds the first HI signaling message back to the first MAG when the establishment of the first bidirectional tunnel is successful, and requests the first MAG to transmit the multicast data of the mobile multicast node through the established first bidirectional tunnel; and after the first bidirectional tunnel is established successfully, the mobile multicast node is switched from the first MAG to the second MAG. The transmission delay of the multicast data in the mobile multicast switching process and the loss of the multicast data are reduced.
Description
technical field [0001] The invention relates to the technical field of mobile communication, in particular to a mobile multicast switching technology. Background technique [0002] With the development of mobile communication technology, more and more users connect to the network through mobile devices, and hope to access the network anytime and anywhere. Mobility support for terminals has become an inevitable trend of network development. Currently, a lot of research focuses on how networks provide mobility support for terminals. Due to the advantages of high network utilization, resource saving, and strong scalability, multicast technology has played a huge role in new network applications such as video conferencing, file distribution, and real-time information release. For example, in typical mobile IPTV (Internet Television) applications Among them, a large number of users can obtain audio / video streaming data distributed by the network through multicast technology. IE...
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Login to View More IPC IPC(8): H04W8/08H04W36/12H04W76/04H04W88/16
Inventor 惠敏邓辉李玉宏邓强胡博时岩程时端
Owner CHINA MOBILE COMM GRP CO LTD