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Implementation method for reselecting network

An implementation method and network technology, applied in data exchange network, data exchange through path configuration, digital transmission system, etc., can solve the problem that user terminals cannot be changed, and achieve the effect of improving satisfaction and rational utilization

Inactive Publication Date: 2007-11-28
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a method for implementing network reselection to solve the problem that user terminals cannot change from the current congested or faulty network to other networks when the network is congested or faulty

Method used

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  • Implementation method for reselecting network

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Embodiment Construction

[0024] In order to enable the terminal to change the network when the network is congested or faulty, the base station controller / radio network controller (BSC / RNC) carries an indication of whether the terminal is allowed to change the network in the issued access level restriction information. The carrying of the indication needs to expand the existing access level restriction information, that is, it can be realized by defining a new field in the access level restriction information, or clearly defining an existing idle field. When the terminal judges that it is restricted, it decides whether to reselect network access according to the indication.

[0025] This embodiment takes the situation of network congestion as an example to describe the method for network reselection disclosed in the present invention, and other situations are similar.

[0026] Whether to allow the terminal to change the network may be determined according to the current congestion situation of the net...

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Abstract

The method includes following steps: network down sends information of restricting access level to user terminal, and carrying indication information whether terminal changes network is allowed; determining own restricting access level, user terminal reads indication information whether terminal changes network is allowed; if not, then no longer start access attempt or respond message of system seek; otherwise; user terminal starts change of network. When network, where the user terminal is positioned on, congestion happens, user terminal can change to another network so that influence of current network congestion is lowered to minimum in order to make network obtain more rational utilization.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method for realizing network reselection. Background technique [0002] When the network is congested or fails, access level restriction is widely used at present, so that the user terminal no longer initiates access attempts or responds to system paging messages in a certain area. User access levels are divided into 15 categories: 0-9 are common users, 11-15 are special users, respectively: 11 mobile network, 12 security service, 13 public sector, 14 emergency call, 15 operator employee. The user access level is stored in the SIM card, and the access network RNC / BSC (radio network controller / base station controller) sends a system broadcast message to indicate which levels of users are subject to network access restrictions. When the air congestion and the access network are congested, the RNC / BSC determines the user level to be restricted according to the congestion sit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04L12/24
Inventor 王洁
Owner HUAWEI TECH CO LTD
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