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Selection method and terminal of best cell among wireless access techniques

A wireless access technology and a technology of access technology, which are applied to the selection method of the best cell among wireless access technologies and the field of terminals, can solve the problem of large frequency load of wireless access technology, etc., and achieve the effect of load balancing and evenly spreading

Inactive Publication Date: 2009-12-02
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The present invention is made in consideration of the above problems. Therefore, the main purpose of the present invention is to provide a mechanism for selecting the best cell among radio access technologies, so as to solve the problem of the selected radio access technology and / or The problem of excessive frequency load

Method used

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  • Selection method and terminal of best cell among wireless access techniques
  • Selection method and terminal of best cell among wireless access techniques
  • Selection method and terminal of best cell among wireless access techniques

Examples

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example 1

[0053] In this example, the terminal selects RATs sequentially according to the order of other RATs in the measurement target list, and randomly selects a corresponding frequency under each of the selected other RATs. At this time, when the terminal determines that the cells under all the frequencies of other RATs currently selected do not meet the conditions, the next other RAT is selected according to the order of other RATs in the measurement target list and random frequency selection is performed.

[0054] Specifically, the terminal selects RATs sequentially in the order of WCDMA->GERAN->CDMA, and then randomly selects a frequency for searching in each RAT, that is, randomly selects frequency 10, or frequency 11, or frequency 12 for WCDMA. Frequency search; under GERAN, randomly select frequency 20 or frequency 21 to search; under CDMA, since there is only one frequency, the result of random selection is the only frequency 30 itself, and search. like figure 2 As shown, t...

example 2

[0062] In this example, the terminal randomly selects other RATs in the measurement target list, and randomly selects a corresponding frequency under each of the selected other RATs. At this time, when the terminal determines that the cells under all the frequencies of other RATs currently selected do not satisfy the condition, it randomly selects other RATs in the measurement target list and performs random frequency selection.

[0063] Specifically, the terminal randomly selects a RAT among the RATs listed in the measurement target list, that is, WCDMA, GERAN, and CDMA, and then searches in sequence according to the frequency order listed in the measurement target list under each selected RAT. That is to say, if WCDMA is randomly selected, search in the order of frequencies listed in the measurement target list, frequency 10->frequency 11->frequency 12; if GERAN is randomly selected, search according to the order listed in the measurement target list Frequency sequence, freq...

example 3

[0071] In this example, the terminal randomly selects other RATs in the measurement target list, and sequentially selects frequencies under the currently selected other RATs according to the order of frequencies under each other RAT in the measurement target list. At this time, when the terminal determines that the cells under all the frequencies of other RATs currently selected do not meet the conditions, randomly select other RATs that can be selected from the measurement target list, and perform frequency selection according to the measurement target list.

[0072] Specifically, the terminal randomly selects a RAT from each RAT listed in the measurement target list, that is, WCDMA, GERAN, and CDMA, and then randomly selects a frequency to search under each randomly selected RAT, that is, under WCDMA, Randomly select frequency 10, frequency 11, and frequency 12 to search; under GERAN, randomly select frequency 20 and frequency 21 to search; under CDMA, since there is only one...

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Abstract

The invention discloses a selection method and a terminal of best cell among wireless access techniques, wherein the method comprises the following steps: the terminal randomly selects frequencies under other wireless access techniques and / or other access techniques in a measurement target list except the wireless access technique where the terminal is positioned; the terminal judges whether the cell under the selected frequency meets the condition of the best cell in a preset mode after selecting the frequency every time until finding the cell meeting the condition of the best cell. The invention can uniformly divide the section of the wireless access techniques and the frequencies under the wireless access techniques so as to lead the load born by the wireless access techniques and the frequencies under the wireless access techniques to be uniformly divided.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to a method for selecting the best cell among wireless access technologies and a terminal. Background technique [0002] There are many kinds of Radio Access Technology (RAT for short). In the existing wireless communication system, network composition and interaction will involve the composition and interaction of various RATs. These RATs include Mobile Special Group (Group Special Mobile, GSM), GSM / EDGE Radio Access Network (GSM / EDGE Radio Access Network, GERAN, wherein, the English full name of EDGE is Enhanced Data rate for GSMEvolution, that is, enhanced data rate GSM evolution technology), code division multiple access (CodeDivision Multiple Access, CDMA), time division synchronous code division multiple access (TimeDivision-Synchronous Code Division Multiple Access, TD-SCDMA) technology, wideband code division multiple access (Wideband CDMA, WCDMA), universal mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/18H04W74/00
Inventor 程翔柯雅珠
Owner ZTE CORP