Method and system for implementing multimedia broadcast/multicast service, and bearer selection method
A technology for multimedia broadcast and multicast services, which is applied in the fields of system and bearer selection, and realization of multimedia broadcast and multicast services, can solve the problems of cumbersome, unreasonable wireless bearer mode switching methods, and complicated processes, and achieves simplified implementation methods and reduced resources. Consume, achieve simple and convenient effects
Active Publication Date: 2010-06-09
ZTE CORP
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[0023] by right figure 2 According to the analysis, it can be seen that the existing implementation of multimedia broadcast and multicast services involves multiple network elements and the process is relatively complicated, and the switching method of the wireless bearer mode is not reasonable enough and is too cumbersome
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[0053] The invention provides a method for implementing MBMS services, which distinguishes MBMS services, including: adding a service type identifier to the service, distinguishing the services into services that require subscription and services that do not need to be subscribed, and judging whether the service is required or not according to the service type identifier Users can only receive after ordering. For services that need to be subscribed by users, before sending service data, send the service key MSK (MBMS Service Key, multimedia broadcast service key) encrypted with MUK (MBMS User Key, multimedia broadcast multicast service user key) multicast service key), and also issue the transmission key encrypted with the service key, and encrypt the service flow, the terminal uses the user key to decrypt the encrypted service key, obtains the service key, and uses the service key to decrypt the encrypted The transmission key is used to decrypt the encrypted program stream to...
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The invention discloses a method and a system for implementing a multimedia broadcast / multicast service, and a radio bearer selection method. The method for implementing the multimedia broadcast / multicast service comprises the following steps of: dividing services into the services which need to be subscribed by a user and the services which do not need to be subscribed by the user; transmitting the services by a broadcast multicast service centre; if the services do not need to be subscribed by the user, transmitting an unencrypted service flow to a user terminal; and otherwise, encrypting a service key of the service flow by a user key, encrypting a transmission key by the service key, encrypting the service flow by the transmission key, and transmitting the encrypted service flow to the user terminal which has subscribed the service. The radio bearer selection method comprises the following steps that: a radio network controller sends service related information to a terminal when receiving a session start request; the terminal feeds back a response message to the radio network controller, wherein the response message carries a radio bearer mode identification; and when the terminal is a subscriber of the service, the radio network controller distributes a corresponding bearer mode to the terminal according to the indication of the bearer mode identification in the response message returned by the terminal.
Description
technical field [0001] The present invention relates to the communication field, in particular to a method, system and bearer selection method for a Multimedia Broadcast / Multicast Service (MBMS) in a WCDMA (Wideband Code Division Multiple Access) mobile communication system. Background technique [0002] Multimedia Broadcast / Multicast Service (abbreviated as MBMS) is defined by the 3rd Generation Partnership Project 3GPP (3rdGeneration Partnership Project). It is a point-to-multipoint technology that transmits data from one data source to multiple targets. Realize network resource sharing and improve the utilization rate of network resources, especially air interface resources. MBMS can not only realize plain text low-rate message multicast and broadcast, but also realize multicast and broadcast of high-speed multimedia services, and provide a variety of rich video, audio and multimedia services, which undoubtedly conforms to the development trend of mobile data in the futur...
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IPC IPC(8): H04L12/18H04L9/18H04L29/08
Inventor 郭亮单以文
Owner ZTE CORP