Method and device for carrying out multicasting on core net EPC

A core network and multicast technology, applied in the field of wireless communication, can solve problems such as the inability to realize message transmission, the inability of the PIS server to directly access the display terminal, etc., to reduce system overhead, improve system performance, and reduce the amount of modification.

CN106686553AActive Publication Date: 2017-05-17DATANG MOBILE COMM EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2017-05-17

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Abstract

The invention provides a method for carrying out multicasting on a core net EPC and a device for carrying out multicasting on a core net EPC. A mapping relation of an IP address of a multicasting group and an IP address of a train access unit TAU is configured in the EPC. The IP address of the multicasting group is associated with a display terminal. The IP address of the TAU is associated with the TAU. The method comprises steps that the EPC receives data reports sent by a passenger information system PIS server; the data reports carry IP addresses of one or more multicasting groups; IP addresses, corresponding to the IP addresses of the one or more multicasting groups, of TAUs are searched; the data reports are sent to one or more TAU associated with the IP addresses of one or more TAUs; and the one or more TAU are used for forwarding the data reports to the display terminals associated with the IP addresses of the multicasting groups. According to the invention, it is achieved that the PIS server can directly access multiple display terminals hung under the TAUs simultaneously through the EPC.
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Description

technical field

[0001] The present application relates to the technical field of wireless communication, in particular to a method for performing multicast on the core network EPC and a device for performing multicast on the core network EPC. Background technique

[0002] With the development of the times and the advancement of science and technology, there are more and more media and ways for people to obtain information. In the past, people almost obtained information through paper media, such as buying books or going to the library. Now, people use multimedia Ways, such as display terminals on buses and subways, can obtain various information anytime and anywhere, which is very convenient.

[0003] Taking PIS (Passenger Information System) as an example, PIS is a service system that provides various information to passengers. Relying on multimedia network technology, PIS provides information services to passengers with computer systems as the core and stations and vehicl...

Examples

Embodiment Construction

[0044] In order to make the above objects, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0045] One of the core ideas of the embodiment of the present application is to propose a multicast address mapping method based on a routing lookup mechanism, and configure the corresponding mapping relationship between the IP address of the multicast group and the IP address of the TAU in the EPC, so that the EPC can quickly lock the group The IP address of the TAU corresponding to the IP address of the broadcast group is forwarded.

[0046] refer to image 3 , which shows a flow chart of the steps of Embodiment 1 of a method for multicasting on the core network EPC of the present application. In this method embodiment, the IP address of the multicast group and the TAU of the TAU may be configured in t...