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Mobile communication system and service control device

A mobile communication system and service control technology, applied in the field of service control devices, can solve problems such as inability to receive broadcast data and the like

Inactive Publication Date: 2006-02-15
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Therefore, in view of this, an object of the present invention is to provide a mobile communication system and a service control device that can improve the utilization rate of network resources even when a failure occurs in a specific lower node SGSN in MBMS, At the same time, it is possible to prevent the mobile station controlled by the subordinate node SGSN from being unable to receive broadcast data due to the occurrence of the obstacle

Method used

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  • Mobile communication system and service control device
  • Mobile communication system and service control device
  • Mobile communication system and service control device

Examples

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Embodiment Construction

[0020] (Structure of the mobile communication system related to the first embodiment of the present invention)

[0021] Refer to Figure 2 to Figure 5 , the configuration of the mobile communication system according to the first embodiment of the present invention will be described.

[0022] The mobile communication system according to the present embodiment adopts a tree structure composed of multiple nodes (service control devices) GGSN / SGSN, and the upper node (higher-level service control device) GGSN passes through multiple lower-level nodes (lower-level service control devices) SGSN#1 The broadcast data (contents) stored in the content distribution server 100 are transmitted to a plurality of mobile stations MS #1 to #4 within the area #1 to #4 to #4.

[0023] In the example of FIG. 2 , session sessions #1 to #4 for transmitting broadcast data are respectively established between the upper node GGSN and each of the lower nodes SGSN #1 to #4.

[0024] In order to realiz...

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Abstract

In a mobile communication system, an upper service control device transmits broadcast data to a plurality of mobile stations through a plurality of lower service control devices, based on a tree structure including a plurality of service control devices. The upper service control device is configured to stop only transmitting the broadcast data to the lower service control device in which it is detected that a failure has occurred, when detecting that the failure has occurred in any one of the plurality of the lower service control devices.

Description

technical field [0001] The present invention relates to a mobile communication system in which a higher-level service control device transmits broadcast data to a plurality of mobile stations via a plurality of lower-level service control devices according to a tree structure composed of a plurality of service control devices, and a mobile communication system used in the mobile communication system service control device. Background technique [0002] Currently, MBMS (Multimedia Broadcast / Multicast Service) is specified in 3GPP (3rd Generation Partnership Project) (for example, see Non-Patent Document 1). [0003] As shown in Figure 1, in MBMS, an upper node (upper service control device) GGSN (Gateway GPRS (General Packet Radio Service) Support Node) passes through multiple lower nodes (lower service control devices) SGSN (Serving GPRS Support Node) #1 to #4, to transmit broadcast data (or multicast data) to a plurality of mobile stations MS#1 to #4 within the range of ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/20H04B7/26H04L12/28H04W4/06H04W24/00H04W24/04H04W28/04H04W84/12H04W88/08H04W88/14
CPCH04L69/40H04W76/028H04W76/002H04L29/14H04W28/04H04W76/19H04W76/40H04W4/06H04W24/00
Inventor 神津和志大附克亘
Owner NTT DOCOMO INC