CN100407812C - A Method for Realizing Community Multimedia Broadcasting Service - Google Patents

Abstract

The invention provides a method for realizing community multimedia broadcasting service, the key of which is to set the access point name (APN) for the community multimedia broadcasting (CMB) service in the radio network controller (RNC), and determine the corresponding IP address segment. When the user wants to perform the CMB service, the user equipment UE first completes the activation process and succeeds, the UE sends a real-time stream protocol description message carrying its own IP address to the RNC, and the RNC performs authentication according to the IP address and APN; the RNC judges whether the authentication is Success, if yes, then send a success response message of the real-time streaming protocol to the UE, the UE sends a real-time streaming protocol play request message to the RNC, the RNC returns a successful response message of the real-time streaming protocol to the UE, and then the RNC sends the CMB service data to the UE; Otherwise, end the CMB service directly. By applying the scheme of the present invention, it is possible to realize the authentication of the user performing the CMB service.

Description

A Method for Realizing Community Multimedia Broadcasting Service

technical field

The invention relates to mobile communication technology, in particular to a method for realizing community multimedia broadcasting service.

Background technique

With the development of mobile communication technology, operators can provide mobile users with multimedia short message service, packet switched domain (PS) video streaming service, videophone service, multimedia broadcast multicast service, etc. through Universal Mobile Telecommunications System (UMTS). Among them, multimedia short message service, PS domain video stream service and videophone service require wireless network to provide point-to-point transmission bearer, while multimedia broadcast multicast service requires wireless network to provide point-to-multipoint transmission bearer.

In order to realize the multimedia broadcast multicast service, a broadcast service carried on a common control physical channel (SCCPCH), that is, Cell Multimedia Broadcast (CMB, Cell Multimedia Broadcast), is currently proposed. The CMB service is proposed based on the third generation cooperation project (3GPP) R4/R5 version, the key is to add a multimedia management center (MMC) server, MMC and Serving GPRS Support Node (SGSN, Serving GPRS Support Node) Connected, used to save broadcast program data, and responsible for sending broadcast program data to a radio network controller (RNC, Radio Network Controller, RNC).

Figure 1 shows a system network structure diagram for implementing the CMB solution. As shown in Figure 1, the CMB system includes:

A user equipment (UE, User Equipment) is configured to initiate a CMB service request message and receive CMB service data through an air interface.

The RNC is configured to receive the UE's CMB service request message, send the UE's CMB service request message to the SGSN, and receive the CMB service data sent from the SGSN, and send the CMB service data to the UE.

The SGSN is used to receive the CMB service data sent by the MMC and forward it to the RNC.

The MMC is used to save the CMB service data and is responsible for sending the CMB service data to the SGSN.

In the CMB system, the MMC continuously sends the CMB service data to the SGSN; the SGSN continuously sends the received CMB service data to the RNC; and the RNC only sends the CMB service data to the mobile users who have CMB service requests.

When a mobile user wants to watch a broadcast program, the basic flow of CMB to realize the multicast service is as follows: UE sends a CMB service request message to SGSN through RNC; after receiving the CMB service request message, SGSN sends a CMB service response message to RNC; then, The RNC sends the CMB service data to the UE to realize the CMB service.

CMB breaks through the traditional point-to-point way of watching broadcast programs. It no longer uses a dedicated channel to serve a certain mobile user, but uses broadcasting in a cell, so that multiple mobile users can watch broadcast programs, saving energy. Network resources reduce user service costs. Generally speaking, watching broadcast programs in a community is usually called multicast service; using CMB scheme to enable mobile users to watch broadcast programs is usually called CMB service, and the data of its broadcast programs is usually called CMB service data .

In practical applications, mobile users need to be authenticated, but the CMB scheme does not propose a method for mobile users to be authenticated. The R6 version of 3GPP involves an authentication method for multimedia broadcast/multicast services, but this method is based on the method with SGSN as the core, and the method with RNC as the core in CMB, so it cannot be directly applied to the CMB service.

It can be seen that, in the prior art, when a mobile user performs a CMB service, there is no method for authenticating the mobile user.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a method for realizing the multimedia broadcasting service of a cell. In order to achieve the above object, the technical scheme proposed by the present invention is:

A kind of method that realizes community multimedia broadcast service, in radio network controller RNC, set the access point name APN for community multimedia broadcast CMB service, and determine the IP address section corresponding to this APN, the method is:

The user equipment UE sends a description message carrying its own IP address to the RNC, and the RNC judges whether the IP address of the UE is an IP address in the IP address segment corresponding to the APN. If so, the RNC sends the CMB service data to the UE; otherwise, the CMB service is terminated directly. business.

Preferably, the method for the RNC to send CMB service data to the UE is:

The RNC sends a success response message to the UE, the UE sends a play request message to the RNC, and the RNC sends the CMB service data after sending the success response message to the UE again.

Preferably, the method for directly ending the CMB business is:

The RNC sends a failure response message to the UE, the UE sends a release request message to the RNC, and the RNC returns a success response message to the UE and releases the CMB service.

Preferably, after the RNC sends the CMB service data to the UE, it further includes:

The UE sends a release request message to the RNC, and the RNC returns a successful response message to the UE and releases the CMB service.

To sum up, the present invention proposes a method for realizing the multimedia broadcasting service in a cell, setting the access point name (APN) for the CMB service in the RNC, and determining the IP address segment corresponding to the APN. When the user wants to realize the CMB service, the RNC only needs to judge whether the IP address of the UE is associated with the IP address segment corresponding to the local APN, and then authenticate the user, thereby realizing the CMB service that can authenticate the user.

Description of drawings

Fig. 1 is a typical system networking diagram for realizing community multimedia broadcasting services;

Fig. 2 is the flowchart of the scheme of the present invention;

Fig. 3 is a flowchart of an embodiment of applying the scheme of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The basic idea of the present invention is: the APN for CMB service is set in RNC, and determine the IP address segment corresponding to this APN, RNC carries out authentication according to the IP address segment corresponding to IP address and APN, if authentication succeeds, then to The UE sends CMB service data; otherwise, the CMB service is terminated directly.

Fig. 2 is a flow chart of implementing the CMB service according to the solution of the present invention. As shown in Figure 2, the present invention realizes CMB business and comprises the following steps:

Step 201: The UE sends a description message of the real-time streaming protocol carrying its own IP address to the RNC.

Step 202: RNC performs authentication according to the IP address and the IP address segment corresponding to the APN.

Step 203: The RNC judges whether the authentication is successful, and if so, sends a success response message of the real-time streaming protocol to the UE, and then performs step 204; otherwise, ends the CMB service directly.

Step 204: the UE sends a real-time streaming protocol play request message to the RNC, and the RNC returns a real-time streaming protocol success response message to the UE.

Step 205: RNC sends CMB service data to UE.

In the present invention, the APN is actually a character string identifier, and an APN can represent a type of service. For example: MulitcastAPN can represent a CMB service and correspond to a specific IP address segment.

In the present invention, the UE needs to complete the activation process before performing the CMB service. The method for the UE to complete the activation process is: UE sends a PDP activation request message to the SGSN; the SGSN sends a PDP context creation request message to the GGSN; the GGSN allocates an IP address for the UE, and sends a PDP context creation response message carrying the IP address to the SGSN; the SGSN Send a PDP activation response message carrying the IP address to the UE. When the UE is successfully activated, the CMB service can be performed.

Fig. 3 is a schematic diagram of a message flow for implementing a CMB service in an embodiment of the application of the solution of the present invention. In this embodiment, the APN for the CMB service is set in the RNC, the IP address segment corresponding to the APN is determined, and the UE has successfully completed the activation process. In this embodiment, the UE will successfully pass the authentication of the RNC, and after watching the CMB program, it will actively initiate the process of releasing the CMB service.

As shown in Figure 3, the method for implementing the CMB service in this embodiment includes the following steps:

Step 301: UE sends an RTP description message carrying its own IP address to RNC.

Step 302: RNC performs authentication according to the IP address and APN, and judges that the authentication is successful, then the RNC sends a success response message of the real-time streaming protocol to the UE.

In this embodiment, the method for the RNC to perform authentication according to the IP address and the APN is as follows: the RNC judges whether the IP address of the UE is associated with the IP address segment corresponding to the APN locally set by the RNC, and if so, it is judged as authentication. If the authorization is successful; otherwise, it is judged that the authentication has failed. Wherein, the association relationship is: if an IP address A belongs to an IP address within the range of a certain address segment B, then A has an association relationship with B, otherwise, there is no association relationship. In practical applications, the IP address obtained by the UE after the activation process may be the IP address allocated by the GGSN according to the APN of other services, and the IP address cannot be associated with the IP address segment corresponding to the APN set in the RNC.

In practical applications, when the authentication fails, the system will directly end the CMB service. The method of ending the CMB service is: RNC sends a failure response message of the real-time streaming protocol to the UE, and the UE sends a release request message to the RNC, and the RNC returns a success response message of the real-time streaming protocol to the UE, and releases the CMB service.

Steps 303 to 304: UE sends a real-time streaming protocol play request message to RNC, and RNC returns a real-time streaming protocol success response message to UE.

Step 305: RNC sends CMB service data to UE.

Steps 306 to 307: UE sends a release request message to RNC, and RNC returns a success response message of the real-time streaming protocol to UE, and releases the CMB service.

In practical applications, the user can exit the CMB service after watching the CMB program, or exit the CMB service in the middle of watching the CMB program. When the user exits the CMB, a release request is sent to the RNC, and then the connection is torn down.

To sum up, the above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (4)

1. a method for realizing community multimedia broadcasting service, it is characterized in that, in radio network controller RNC, set for the access point name APN of community multimedia broadcasting CMB service, and determine the corresponding IP address segment of this APN, the method is : The user equipment UE sends a description message carrying its own IP address to the RNC, and the RNC judges whether the IP address of the UE is an IP address in the IP address segment corresponding to the APN. If so, the RNC sends the CMB service data to the UE; otherwise, the CMB service is terminated directly. business. 2. The method according to claim 1, wherein the method for the RNC to send CMB service data to the UE is: The RNC sends a success response message to the UE, the UE sends a play request message to the RNC, and the RNC sends the CMB service data after sending the success response message to the UE again. 3. The method according to claim 1, wherein the method for directly ending the CMB service is: The RNC sends a failure response message to the UE, the UE sends a release request message to the RNC, and the RNC returns a success response message to the UE and releases the CMB service. 4. The method according to claim 1, characterized in that, after the RNC sends the CMB service data to the UE, further comprising: The UE sends a release request message to the RNC, and the RNC returns a successful response message to the UE and releases the CMB service.

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