A method and wireless terminal for searching registration frequency points

A wireless terminal and frequency technology, applied in wireless communication, radio/induction link selection and arrangement, electrical components, etc., can solve problems such as prolonging terminal login system time, disadvantageous terminal power saving, etc., and achieve the effect of reducing time

Inactive Publication Date: 2008-02-13
ST ERICSSON SEMICON BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, on the one hand, it is not conducive to the power saving of the terminal, and on the other hand, it also prolongs the time required for the terminal to log in to the system

Method used

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  • A method and wireless terminal for searching registration frequency points
  • A method and wireless terminal for searching registration frequency points
  • A method and wireless terminal for searching registration frequency points

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] The key of the present invention is: first divide the whole frequency band to be searched into a plurality of sub-frequency bands; then search for the frequency point with the strongest signal on each sub-frequency band in turn; , then the mobile terminal directly searches for a cell at this frequency point and resides in it, otherwise it continues to search for the next sub-frequency band. Here, the strength of each frequency point signal is represented by the RSSI of the frequency point.

[0027] Please refer to Fig. 1, the specific flow of the method for searching for logable frequency points in a preferred embodiment of the present invention is as follows:

[0028] Step 101, dividing the entire frequency band to be searched into multiple...

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PUM

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Abstract

The invention discloses a method and a movable terminal to search frequency points which can be logged on. The method includes the following steps of A, dividing a whole frequency band into a plurality of sub-frequency bands to get a sub-frequency band congregation; B, selecting a sub-frequency band from the sub-frequency band congregation, measuring the RSSI of each frequency point in the selected sub-frequency band and acquiring the frequency point with the strongest signal; C, judging whether the signal intensity of the frequency point with the strongest signal is bigger than the threshold value of RSSI or not, if so, searching a district on the frequency point to stay; if not, returning to step B after removing the sub-frequency band that is currently selected from the sub-frequency band congregation. The method and wireless terminal of the invention has effectively reduced the time for a wireless terminal to log on the system.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a method for searching for a registerable frequency point and a wireless terminal. Background technique [0002] When the wireless terminal is turned on, it first needs to search for a frequency point to find a frequency point with the strongest signal and further search for a suitable cell on the frequency point to camp on. [0003] There are two main methods of frequency point search for wireless terminals: one is full-frequency band search, that is, the terminal does not store any information about frequency points (or does not use the stored information about frequency points), and needs to search in the entire frequency band Perform frequency point search; another way is frequency point search with stored information. The terminal first searches the stored frequency points. Switch to full-band search. [0004] With the rapid development of wirele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04Q7/32H04B1/707H04W16/10H04W88/02
Inventor 许百成牟秀红
Owner ST ERICSSON SEMICON BEIJING
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