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Method and device for searching network through CDMA (Code Division Multiple Access) single-mode chip multi-standby terminal

A chip and single-mode technology, applied in network data management, access restrictions, electrical components, etc., can solve problems such as the inability to realize multi-user network search and scheduling, and achieve the effect of improving user experience

Inactive Publication Date: 2011-01-19
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The main purpose of the present invention is to provide a method and device for searching the network of a CDMA single-mode chip dual-standby terminal to solve the problem that the above-mentioned CDMA single-mode chip terminal cannot realize multi-user network search and scheduling

Method used

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  • Method and device for searching network through CDMA (Code Division Multiple Access) single-mode chip multi-standby terminal
  • Method and device for searching network through CDMA (Code Division Multiple Access) single-mode chip multi-standby terminal
  • Method and device for searching network through CDMA (Code Division Multiple Access) single-mode chip multi-standby terminal

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Experimental program
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Embodiment 1

[0021] figure 1 It is a flow chart of a method for searching a network by a CDMA single-mode chip multi-standby terminal according to an embodiment of the present invention. Such as figure 1 As shown, the method of the present embodiment includes the following steps:

[0022] Step S102, the terminal extracts multiple user roaming lists PRL;

[0023] Step S104, merging the PRLs of multiple users to obtain a union of the PRLs of multiple users;

[0024] Step S106, according to the union of the PRLs of the multiple users, the network decision of the CDMA single-mode chip multi-standby terminal is made.

[0025] In the present embodiment, get the union of the respective PRLs of multiple users as the PRL of the dual-card multi-standby mobile phone, and obtain a reasonable PRL. Then, according to the network search process specified in the existing CDMA protocol, the frequency points in the PRL Demodulate one by one according to the priority until the network search is successfu...

Embodiment 2

[0027] When merging the PRLs of multiple users, various situations will be encountered, and this embodiment will provide solutions to various situations. In this embodiment, two users are taken as an example, and multiple users and the like will not be described repeatedly.

[0028] 1. If two users use the same PRL, the dual-standby terminal also uses this PRL.

[0029] 2. If the PRL of one user completely includes all the content of the PRL of another user, the dual standby terminal uses the larger and more complete PRL as the basis for searching the Internet.

[0030] 3. For the case of different PRLs, after subtracting the PRL intersection of the two users from the PRL of one of the two users, the remaining entries are added to the PRL of the other user as a union according to the SID / NID index.

[0031] This embodiment has all the beneficial effects of Embodiment 1, and because it distinguishes various situations in detail, its practicability is stronger.

Embodiment 3

[0033] This embodiment will describe in detail the process of merging in the case of different PRLs in the second embodiment. figure 2It is a flow chart of processing the case of different PRLs in the method for searching a network by a multi-standby terminal on a CDMA single-mode chip according to Embodiment 3 of the present invention. Assume that there are user 1 and user 2 in the terminal, and the overlapping entries in user 2's PRL and user 1's PRL have been deleted, such as figure 2 As shown, this embodiment includes the following steps:

[0034] Step S202, searching the System Records of the PRL of the user 1 for the SID / NID contained in the entry (indicated by s) to be added to the PRL of the user 2 in the PRL of the user 2;

[0035] Step S204, whether there is, if yes, execute step S206, otherwise, execute step S208;

[0036] Step S206, adding the frequency points contained in the entry of user 2's PRL to the entry of user 1's PRL, and executing step S218;

[0037...

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Abstract

The invention discloses a method and a device for searching a network through a CDMA (Code Division Multiple Access) single-mode chip multi-standby terminal. The method comprises the following steps of: extracting the priority roaming lists (PRLs) of a plurality of users by a CDMA single-mode chip multi-standby terminal; merging the PRLs of the users to obtain a PRL union set of the users; and performing the network decision of the CDMA single-mode chip multi-standby terminal according to the PRL union set of the users. In the invention, two PRLs are subject to union operation through the terminal to obtain a common RPL as a network searching basis, the problem that the CDMA single-mode chip multi-standby terminal can not realize multi-user network searching is solved, and the effect of improving user experience is achieved.

Description

technical field [0001] The invention relates to the technical field of terminals in the communication industry, in particular to a method and device for searching a network by a CDMA single-mode chip multi-standby terminal. Background technique [0002] In a CDMA2000 1X system, a terminal searches for a network according to a preferred roaming list (Preferred Roaming List, PRL for short). If the terminal cannot find an available PRL, it will enter the offline mode. At this time, the terminal cannot initiate any calls, including emergency calls. Therefore, when there is no available PRL in the user card or non-volatile memory (Non-Volatile memory, NV for short) of the terminal, the terminal needs to automatically generate a default PRL to ensure that it does not enter the offline mode. [0003] PRL is provided by operators, and there are many different versions. Each PRL includes two parts: acquisition records (Acquisition Records) and system records (System Records), and e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/02H04W48/18H04W88/06
CPCH04W8/02H04W88/06H04W48/18
Inventor 王珠珠薛子涛徐敏
Owner ZTE CORP