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Method, terminal and communication system for searching global mobile communication system

A global mobile communication and terminal technology, applied in the field of terminals, communication systems, and methods, can solve problems such as interference, and achieve the effect of avoiding decoding and improving efficiency

Active Publication Date: 2012-07-04
HUAWEI DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a method, a terminal and a communication system for searching a global system for mobile communication network, which solves the problem of interference of CDMA signals to GSM terminals in a GSM network, so that a GSM terminal can search a GSM network more rapidly

Method used

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  • Method, terminal and communication system for searching global mobile communication system
  • Method, terminal and communication system for searching global mobile communication system
  • Method, terminal and communication system for searching global mobile communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment one, a kind of method of searching Global System for Mobile Communications GSM network, see figure 1 shown, including:

[0025] Step 1: The GSM terminal obtains at least one frequency point information, a signal on the frequency point and signal strength;

[0026] Step 2: According to the frequency point information, judge whether to decode the signal on the frequency point; if yes, go to step 3;

[0027] Step 3: Decoding the signal at the frequency point.

[0028] Wherein, when the GSM terminal searches for the network, it can obtain signals at multiple frequency points, and can know the signal strength of the signals. It should be understood that if a signal is successfully decoded in step 3, the terminal has searched for the network.

[0029] Using the method provided in Embodiment 1 of the present invention, the GSM terminal can determine whether to decode the signal according to the sequence of frequency points and / or signal strength in the case of CD...

Embodiment 2

[0031] Embodiment two, a kind of method of searching GSM network, refer to figure 2 shown, including:

[0032] Step A1: The GSM terminal obtains frequency point information, signal and signal strength on the frequency point;

[0033] Wherein, in step A1, after the GSM terminal is powered on, it will scan the wireless environment to obtain signals and signal strengths at multiple frequency points in the wireless environment.

[0034] Step A2: According to the frequency point information obtained in step A1, judge whether the frequency point belongs to a frequency point among 6 or more consecutive frequency points, if yes, go to step A3; if not, go to step A4;

[0035] Among them, it should be noted that since the CDMA carrier bandwidth is usually 1.25MHz, while the GSM carrier bandwidth is usually 200kHz, the CDMA carrier bandwidth can be considered to be about six times the GSM carrier bandwidth, that is to say, there is a CDMA carrier signal that can be read by a GSM termin...

Embodiment 3

[0052] Embodiment 3, a terminal, see image 3 As shown, it includes: an acquisition unit 10 , a judgment unit 20 and a decoding unit 30 .

[0053] Wherein, the acquiring unit 10 is configured to acquire at least one frequency point information, a signal on the frequency point and signal strength;

[0054] A judging unit 20, configured to judge whether to decode the signal at the frequency point according to the frequency point information obtained in the obtaining unit 10;

[0055] The decoding unit 30 is configured to decode the signal at the frequency point according to when the judging unit 20 judges yes.

[0056] Using the terminal provided in Embodiment 3 of the present invention, the judging unit judges the signal to be decoded according to the frequency point where the received signal is located and / or the characteristics of the signal strength at the frequency point, and decodes the signal. Using this terminal can improve the efficiency of searching the network.

[...

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Abstract

The invention provides a method for searching a global mobile communication system network, a terminal and a communication system; wherein, the method includes the following steps: at least one frequency point information, a signal on the frequency point and signal intensity are acquired; whether the signal on the frequency point is decoded is judged according to the acquired frequency point information; if yes, the signal on the frequency point is decoded. The terminal divides signals into signals needing to be decoded and signals not needing to be decoded by judging the acquired frequency information, the signal on the frequency and the signal intensity and using the technical proposal provided by the invention and according to the characteristic of CDMA frequency bandwidth. The signal needing to be decoded is decoded, thus increasing the efficiency of the terminal searching GSM network and avoiding that the terminal always decodes a CDMA signal on different frequency points.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for searching a global system for mobile communication network, a terminal and a communication system. Background technique [0002] In the era of rapid development of communication technology, communication technology has experienced the development process from the first generation mobile communication technology to the third generation mobile communication technology, and people are still actively developing the fourth generation mobile communication technology. However, at this stage, the second-generation mobile communication technology still provides services for people. One of the second-generation mobile communication technologies: Global System for Mobile Communications (GSM: Global System for Mobile Communications), which is a mobile communication system originated in Europe. technical standard. Therefore, at this stage, people use various communication ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16
Inventor 仇建斌
Owner HUAWEI DEVICE CO LTD
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