Method and system for carrying out direct communication of data among base stations

A technology of data direct connection and inter-base station, applied in wireless communication, network traffic/resource management, electrical components, etc., it can solve the problems such as greatly increase of access network traffic, increase of core network burden, heavy service load, etc., to reduce burden, Meet the needs of large traffic and realize the effect of data diversion

Active Publication Date: 2012-04-18
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, with the continuous emergence and development of high-bandwidth services, the traffic on the access network has increased signif...

Method used

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  • Method and system for carrying out direct communication of data among base stations
  • Method and system for carrying out direct communication of data among base stations
  • Method and system for carrying out direct communication of data among base stations

Examples

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Embodiment Construction

[0018] figure 2 It is a flow chart of an embodiment of the data direct communication method between base stations according to the present invention. As shown in the figure, the method includes the following steps:

[0019] Step 110, after receiving the service initiation request from the calling user terminal, the source base station broadcasts a called user search request to adjacent base stations through the inter-base station direct connection interface.

[0020] Wherein, the source base station refers to the base station of the cell where the calling user terminal is located. Since the source base station does not know which cell the called user terminal is in, it performs a broadcast search; the direct connection interface between the base stations refers to two adjacent base stations The interface for direct wired connection between them may be, for example, the X2 interface specified in the LTE technology.

[0021] In addition, the source base station may also perfor...

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Abstract

The invention provides a method and a system for carrying out direct communication of data among base stations. The method comprises the following steps that: after receiving a service initiating request sent by a calling subscriber terminal, a source base station broadcasts and sends a called subscriber searching request to adjacent base station through direct connection interface between the base stations; each adjacent base station searches a called subscriber terminal corresponding to the called subscriber searching request according to prestored in-cell member information; the adjacent base station which searches the called subscriber terminal replies a search success message to the source base station as a target base station; and after the source base station receives the search success message, a data direct communication link is established between the source base station and the target base station through the direct connection interface between the base stations. A great amount of data services are borne through the direct connection interfaces among the base stations, so that the direct communication of the data is realized, the load of a core network is reduced and the requirement of an access network on high flow is met.

Description

technical field [0001] The invention relates to a data direct communication method and system between base stations, belonging to the technical field of wireless communication. Background technique [0002] figure 1 It is a schematic diagram of the data transmission mode of the existing long term evolution (Long Term Evolution, referred to as: LTE) communication technology. As shown in the figure, the base station (referred to as: eNodeB) located in the access network forwards and transmits the data through the relay forwarding device located in the core network. Another base station located in the access network performs data communication, and the relay forwarding device therein is, for example, an X-Gateway (X-GW for short), a Mobility Management Entity (MME for short), and the like. [0003] However, with the continuous emergence and development of high-bandwidth services, the traffic of the access network increases greatly, which causes the relay and forwarding equipme...

Claims

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Application Information

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IPC IPC(8): H04W28/10
Inventor 张智江陈赤航刘琪吕召彪王健全
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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