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Network searching method of multi-mode terminal and multi-mode terminal

A technology of multi-mode terminal and network search, applied in access restriction, electrical components, wireless communication and other directions, can solve the problem of not conforming to the priority of staying in the LTE network, etc.

Active Publication Date: 2014-02-12
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, if the user sets the network search mode to TD-SCDMA network priority, although the time for the terminal to search the network will be shortened, the terminal will reside on the TD-SCDMA network after power-on, which does not comply with the policy of preferentially staying on the LTE network

Method used

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  • Network searching method of multi-mode terminal and multi-mode terminal
  • Network searching method of multi-mode terminal and multi-mode terminal
  • Network searching method of multi-mode terminal and multi-mode terminal

Examples

Experimental program
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Embodiment 1

[0150] Such as figure 1 Shown is a schematic flowchart of a method for a multi-mode terminal to search a network according to the first embodiment of the present invention, and the method for a multi-mode terminal to search a network includes the following steps:

[0151] Step 101, when the multi-mode terminal selects a network again and stores the cell information of the serving cell and its neighboring cells, it is sequentially judged whether the stored cells correspond to the data rate of the network in descending order Can reside until the multi-mode terminal resides or all stored cells cannot reside;

[0152] The multi-mode terminal usually executes the operation of re-searching the network when it is turned on or re-enters the service area after losing coverage. When the multi-mode terminal is turned off or loses coverage (that is, leaves the service area), it will record and store the cell information of the current serving cell and its neighboring cells.

[0153] The...

Embodiment 2

[0162] The multi-mode terminal in this embodiment is an LTE / TD-SCDMA dual-mode terminal, and the method for searching the network when the LTE / TD-SCDMA dual-mode terminal is turned on is as follows: figure 2 shown ( figure 2 where TD is the abbreviation of TD-SCDMA), including the following steps:

[0163] Step 201, judging whether the cell information of the serving cell and its neighboring cells stored during shutdown contains the cell information of the LTE network, if yes, execute step 202, otherwise execute step 205;

[0164] Step 202, performing LTE cell selection according to the stored cell information of the LTE network;

[0165] Step 203, judging whether there is an LTE cell satisfying the condition, if yes, executing step 204, otherwise executing step 205;

[0166] Step 204, camp in an LTE cell that meets the conditions, and complete other boot procedures such as registration.

[0167] Step 205, judging whether the stored cell information includes the cell info...

Embodiment 3

[0181] Such as image 3 Shown is a schematic flowchart of a method for a multi-mode terminal to search for a network according to a third embodiment of the present invention. The method for a multi-mode terminal to search for a network includes the following steps:

[0182] Step 301, when the multi-mode terminal selects a network again, it is judged whether the cell information of the serving cell and its neighboring cells is stored;

[0183] Step 302, when the cell information of the serving cell and its neighboring cells is stored, judge whether the stored cells can reside in order according to the data rate of the network corresponding to the stored cell from high to low, until the multiple Modular terminals are resident or all stored cells cannot be resident;

[0184] Step 303, when the stored cell is a resident cell, and the resident cell has a network neighbor with a higher data rate, follow the order of the data rate of the network corresponding to the neighbor from hi...

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Abstract

The invention provides a network searching method of a multi-mode terminal and the multi-mode terminal. The multi-mode terminal can reside in a plurality of networks respectively. The network searching method of the multi-mode terminal comprises the steps that when the multi-mode terminal selects networks again, whether a resident cell exists is judged; when the resident cell exists, whether the resident cell has network neighboring cells with a higher data rate is judged; when the resident cell has the network neighboring cells, whether the neighboring cells permit residence is judged in sequence according to the sequence that the data rates of networks corresponding to the neighboring cells are from high to low; when the neighboring cells permit residence, the multi-mode terminal resides in the neighboring cells; when no neighboring cell permits residence, the multi-mode terminal resides in the resident cell; when the resident cell has no network neighboring cell with the higher data rate, the multi-mode terminal resides in the resident cell. By means of the network searching method of the multi-mode terminal and the multi-mode terminal, under the strategy that the multi-mode terminal preferentially resides in high-speed communication networks as much as possible, the network searching time for the multi-mode terminal is shortened.

Description

technical field [0001] The present invention relates to the field of wireless technology, in particular to a method for a multi-mode terminal to search a network and the multi-mode terminal. Background technique [0002] When the current mobile terminal is turned on, it usually searches the network according to the following method: first, select a cell according to the cell information stored when it is turned off, if there is no cell that meets the conditions, then search for a suitable cell in the entire frequency band according to the initial cell selection method, Until a cell that meets the conditions is found, then stay in the cell. If the mobile terminal supports multiple wireless access systems (that is, the mobile terminal is a multi-mode terminal), and there are priorities set for different access systems, the mobile terminal will first try to access the network of the high-priority system. At this time, if The cell information of the high-priority standard netwo...

Claims

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Application Information

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IPC IPC(8): H04W48/16H04W88/06
Inventor 黄宇红舒晶李新刘磊郭卫江李秋香
Owner CHINA MOBILE COMM GRP CO LTD
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