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Method and system for optimizing home NodeB (HNB) position area configuration

A technology for home base station and configuration optimization, applied in the directions of access restriction, electrical components, wireless communication, etc., can solve problems such as affecting user experience, Iu-h interface paging congestion, users being unable to answer calls, etc., to reduce load, reduce range effect

Inactive Publication Date: 2011-02-02
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For a terminal that does not support CSG or a HNB that does not support CSG, the access control of the terminal is performed on the HNB GW side through an HNB-IMSI list composed of international mobile subscriber identities (IMSIs) of users that are allowed to access the HNB. In this case, according to the traditional location area allocation method, when paging a certain terminal, all HNBs under the location area need to be paged. The specific implementation method is all macro base stations and all HNBs under the location area. For paging, considering the denseness of HNB deployment, such a large-scale paging may cause paging congestion on the Iu-h interface
[0008] Since the HNB is a user equipment, only authorized users can use it, and when HNBs with different authorizations use the same location area, there may be a situation where the UE resides in the HNB that is not authorized to use it. In this case, the UE receives a call It cannot respond immediately after a call, which will cause the user to be unable to answer the call and affect the user experience

Method used

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  • Method and system for optimizing home NodeB (HNB) position area configuration
  • Method and system for optimizing home NodeB (HNB) position area configuration

Examples

Experimental program
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Embodiment 1

[0041] The core idea of ​​this embodiment is to assign different location area codes to all HNBs, so that when the UE moves between different HNBs, it will initiate a location update process, and register and access control at the HNB GW, effectively preventing the user from staying in the remote location. authorized HNB cell. At the same time, since the scope of the location area is narrowed (a location area only includes HNBs with the same access authority), this also reduces the load of paging.

[0042] In view of the large number of HNBs deployed, and as user equipments, the access rights of each HNB are likely to be different, which makes more location area code resources be used when adopting this location area configuration method. Therefore, for this optimization scheme, location areas with relatively high isolation can be multiplexed to reduce the demand for the number of location areas; at the same time, after HNBs introduce CSGs, different location areas can be assi...

Embodiment 2

[0062] In this embodiment, each HNB GW is assigned a different location area code, different HNBs under the same HNB GW are assigned different sub-location area numbers, and HNB sub-location areas between different HNB GWs can be multiplexed. HNBs with the same CSG under the same HNB GW can be allocated the same location area.

[0063] When a UE in Idle state moves between different HNBs, it will initiate a location area update process due to different location areas. The location update message will report the sub-location area code of the HNB. The IMSI-HNB list saved by the GW performs access control on the UE. If the access control passes, the HNB GW registers the UE and parses the initial UE message in the CONNECT message, and the HNB GW will use the new HNB sub-location area code in the initial UE message Replace it with your own location area code, and analyze the non-access stratum (NAS) protocol data unit (ProtocolData Unit, PDU) of the initial UE message at the same t...

Embodiment 3

[0082] Based on the scheme of configuring different sub-location area codes for the HNB, this embodiment optimizes it. When the UE moves under the same HNB GW, the location area code of the HNB GW is unchanged for the core network. At this time, the HNB GW It can be considered to directly return the location area update success message without reporting, so as to reduce message interaction and system load.

[0083] image 3 Configure different sub-location areas for the HNB and the location update flow chart of the UE under the same HNB GW, the specific steps are as follows:

[0084] Step 301: The terminal decides to reselect to a new HNB (target HNB) according to the measurement result;

[0085]Step 302: Since the sub-location areas of each HNB are different, the terminal initiates a location area update procedure;

[0086] Step 303: The terminal establishes an RRC connection with the target HNB, and transmits the UE capability, version number, UE identity, etc. to the targ...

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Abstract

The invention discloses a method and a system for optimizing home NodeB (HNB) position area configuration, which are used for solving the technical problem of preventing UE from lingering to an un-allowed access HNB cell under the condition of a terminal which does not support CSG (closed subscriber group) or an HNB which does not support CSG so as to prevent paging congestion and improve user experience. The UE initiates position update flow when moving among different HNBs by distributing different position area codes or sub position area codes to the different HNBs, and is registered and subjected to access control at an HNB gateway; and when initiating paging, a core network judges the current HNB lingered by the UE according to the HNB position area code or the sub position area code kept when the UE is registered, and initiates the paging to the HNB. The method and the system can effectively prevent the user from lingering to the unauthorized HNB cell, and relieve the paging load because the position area range is reduced.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and system for optimizing location area configuration of a home base station. Background technique [0002] A home base station (HNB, Home NodeB) is a small, low-power cellular base station, which is mainly used in indoor places such as homes and offices. Its role is to provide users with high-speed business services with preferential tariffs as a supplement to the indoor coverage of the cellular network. The HNB can be used alone or integrated in the home gateway as a part of the home network. The advantages of HNB are affordable, convenient, low power output, plug and play, etc. [0003] After signing a contract with the operator, the HNB user can connect to the core network through the home base station access network (HNB AN, HomeNodeB Access Network), wherein, the HNB AN is composed of several HNBs and the home base station gateway (HNB GW, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/26H04W48/06H04W24/02H04W88/08
Inventor 黄春黄河
Owner ZTE CORP
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