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Cell selecting method and terminal

A cell selection and terminal technology, applied in the field of communication, can solve the problems of affecting service quality and long cell access time, and achieve the effect of reducing scanning time

Inactive Publication Date: 2011-05-04
ZTE CORP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention is proposed in view of the problem that the cell selection method in the prior art scans the carrier frequencies of all frequency bands, resulting in a long cell access time and affecting the quality of service. Therefore, the main purpose of the present invention is to provide a cell selection method and terminal to solve the above problems

Method used

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  • Cell selecting method and terminal
  • Cell selecting method and terminal

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example

[0036] In practical applications, considering that the number of different frequency bands operated by a certain network side (for example, an operator) is limited, the center carrier frequency of the fixed frequency band commonly used by the operator can be fixed to the SIM card or the operator's customized terminal (for example, , mobile phone), when the user initially accesses or roams in other places, the mobile terminal does not need to scan the carrier frequencies of all supported frequency bands one by one, but only searches the carrier frequency list information fixed in the SIM card or customized mobile phone. Can. If the operator increases the frequency band used by the network, it can issue a corresponding update carrier frequency instruction message (that is, the above update information) through the core network. When the mobile terminal receives this message, it updates the carrier frequency list information in the SIM card or customized mobile phone.

[0037] fi...

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Abstract

The invention discloses a cell selecting method and a terminal. The method comprises the step of: selecting a cell by the terminal according to a carrier frequency list, wherein the carrier frequency lift carries information of carrier frequency used by a network side providing service for the terminal. The terminal comprises a selecting module used for selecting the cell according to the carrier frequency list, wherein the carrier frequency list carries the information of the carrier frequency used by the network side providing service for the terminal. The invention solves the problem that the service quality is influenced by long cell access time caused by scanning carrier frequencies of all frequency bands by the traditional cell selecting method, and can shorten the scanning time of initially accessing or accessing the mobile terminal in a roam manner by a user so that the user can rapidly access the network and obtain the service required by the user.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a cell selection method and a terminal. Background technique [0002] In the wireless communication network, the user and the base station communicate through wireless access technology. When the user initially accesses, the mobile terminal first performs cell search and measurement according to the system information in the cell broadcast, and then according to the search and measurement results, the cell Make a selection. [0003] In the prior art, when the mobile terminal initially accesses, it scans one by one according to the frequency bands supported by the mobile terminal to find the carrier frequency with the strongest signal in all the frequency bands. Then, perform synchronization according to the carrier frequency information, obtain the system information of the carrier frequency to determine the Public Land Mobile Network (PLMN) number to which the cell belongs, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/16H04W48/20
CPCH04W48/20
Inventor 孙中锋王海梅
Owner ZTE CORP
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