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Method and device for transmitting closed subscriber group information

A technology for closing user groups and user terminals, applied in wireless communication, access restrictions, electrical components, etc., can solve problems such as no solutions, and achieve the effects of optimizing paging, reducing waste, and reducing the amount of data transmission

Active Publication Date: 2015-04-01
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is an urgent need for a general method that can efficiently transmit CSG information between them, and the corresponding solution has not been proposed in the prior art

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  • Method and device for transmitting closed subscriber group information
  • Method and device for transmitting closed subscriber group information
  • Method and device for transmitting closed subscriber group information

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Embodiment Construction

[0064] The present invention proposes a scheme for transmitting CSG information. By synchronizing CSG information among network entities in an efficient manner, the scheme finally enables MME to optimize paging by combining TA and CSG information when initiating paging. To avoid sending unnecessary paging messages. The present invention will be described in detail below in conjunction with the specific embodiments of the accompanying drawings.

[0065] Figure 4 An application scenario of an embodiment of the present invention is shown. This scenario is described by transferring CSG information between HeNB GW and MME.

[0066] Such as Figure 4 As shown, the home base station HeNB is connected to the mobility management entity MME through the home base station gateway HeNB GW, and the macro base station eNB is directly connected to the MME. The eNB and the HeNB may have overlapping coverage, that is, a UE can not only access the cell of the HeNB, but also connect to the c...

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Abstract

The invention provides a method and a device for transmitting closed subscriber group (CSG) information so as to support paging optimization. The method and the device only transmit the changed CSG information among network entities by combining the access control of the CSG in long term evolution (LTE) and a network frame of an LTE home enode base station (HeNB), so that the data transfer among the network entities is reduced and the cell needing paging can be comprehensively judged by a mobility management entity (MME) with tracking area (TA) information and CSG information so as to prevent redundant paging and reduce the waste of the wire and wireless transmission resource. In addition, the invention also provides a collocation method for a tracking area mark for further optimizing the paging; and the method prevents unnecessary paging from being initiated in a macro cell caused by the paging at a home cell through reasonable collocation of the tracking area mark so as to reduce the waste of the air interface resource of the macro cell. The method and the device can support the paging optimization in the LTE and a further evolution network thereof and effectively support the large-scale deployment and mobility management of the HeNB.

Description

technical field [0001] The present invention relates to a Long Term Evolution (LTE, Long Term Evolution) system in the field of mobile communication technology, and in particular to a method and device for supporting closed subscriber group (CSG, Closed Subscriber Group) cell paging optimization. Background technique [0002] At present, research on mobile communication systems has evolved from 2.5G / 3G to the next generation. As an important evolution scheme of 3G, the LTE system is the most promising technology recognized by the industry and academia. The 3GLTE system requires the network to meet the requirements of various coverage scenarios including indoor, outdoor, and high-speed mobile. A home base station (HeNB, Home eNode B) is a wireless coverage solution, which is suitable for a home indoor environment, an office environment or other small coverage environments. The HeNB can access the operator's mobile core network through the IP broadband access network, enabli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16H04W68/02H04W88/12H04W92/12H04W92/14
CPCH04W8/186H04W48/02H04W68/02
Inventor 雷艺学王岚张永生
Owner NTT DOCOMO INC