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Method for quickly searching full-band cell in WCDMA (Wideband Code Division Multiple Access) communication system

A communication system and full-band technology, applied in the field of wireless communication and cell selection of mobile devices, can solve the problems of long time, slow startup speed of mobile devices, level changes, etc., to achieve simple operation, fast and convenient implementation process, and high success rate. Effect

Active Publication Date: 2012-12-26
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0035] It is conceivable that since there are many cells to be searched in all frequency bands, it will take a long time if the traditional method is used to search sequentially, and in the process, there is also the possibility of level changes, which will also make the best The cell is not discovered by the mobile device, resulting in misjudgment or cell reselection occurs soon after the cell selection is successful
Therefore, the traditional method cannot avoid the defects of slow startup speed and high power consumption of mobile devices.

Method used

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  • Method for quickly searching full-band cell in WCDMA (Wideband Code Division Multiple Access) communication system
  • Method for quickly searching full-band cell in WCDMA (Wideband Code Division Multiple Access) communication system
  • Method for quickly searching full-band cell in WCDMA (Wideband Code Division Multiple Access) communication system

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Embodiment Construction

[0092] see Figure 1 to Figure 4 As shown, in this WCDMA communication system, the method for realizing the rapid search of the whole frequency band cell comprises the following steps:

[0093] (1) The mobile device performs a power-on initialization operation, and determines the frequency band information supported by the mobile device itself;

[0094] (2) The mobile device generates a base frequency list of frequency groups covering the supported frequency band information according to the supported frequency band information, specifically:

[0095] According to the supported frequency band information, the entire frequency band is divided into several frequency groups at a frequency interval preset by the system,

[0096] And determine that the starting frequency point of the frequency group at the frequency group interval position is the base frequency point of the frequency group, and the frequency group base frequency list is composed of the frequency group and the corr...

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Abstract

The invention relates to a method for quickly searching a full-band cell in a WCDMA (Wideband Code Division Multiple Access) communication system. The method comprises the following steps of: determining band information supported by mobile equipment; generating a frequency group base frequency list covering the full band; determining a target cell in a cell selection process according to the frequency group base frequency list; and carrying out the cell selection process. By adopting the method for quickly searching the full-band cell in the WCDMA communication system, the time consumed by carrying out full-band measurement all the way is greatly shortened; meanwhile, in the process of measurement, when no measurement result is obtained in each frequency group base frequency, the frequency group base frequency measurement is carried out once again, therefore, the signal intensity change of tried frequency points can be timely detected out by the mobile equipment, and the target cell can be more accurately positioned. The method has the advantages of simple operation, quick and convenient realization process, energy saving, consumption reduction, higher success rate and wider application scope and lays a solid foundation for the further development of the modern mobile communication technology.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to the technical field of cell selection of mobile equipment in a wireless communication system, and specifically refers to a method for realizing fast search of full frequency band cells in a WCDMA communication system. Background technique [0002] At present, the wireless communication system mainly includes two forms of GSM and CDMA. Currently running in the GSM system, a dual-band solution of 900M and 1800M is usually used. For the CDMA system, the International Telecommunication Union (ITU) has formulated multiple frequency bands available for the CDMA system. Although only frequency band 0 is used in China due to the traffic volume, as the number of users continues to increase, in the CDMA system Using only one frequency band in the network cannot meet the needs of users, and the resources of the cell will inevitably become more and more tense. Therefore, like t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16H04W48/18
CPCY02B60/50Y02D30/70
Inventor 鞠亮宋铁城
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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