WO2014194712A1

WO2014194712A1 - Method for dual-mode terminal to quickly select network

Info

Publication number: WO2014194712A1
Application number: PCT/CN2014/074655
Authority: WO
Inventors: 李海强; 耿炎; 金坦; 杜俊蛟; 王海兰
Original assignee: 天翼电信终端有限公司
Priority date: 2013-06-05
Filing date: 2014-04-02
Publication date: 2014-12-11
Also published as: CN103327573B; CN103327573A

Abstract

Provided is a method for a dual-mode terminal to quickly select a network, which relates to the technical field of mobile communications. The method comprises the steps of: S1 powering on and starting a dual-mode terminal, to simultaneously start baseband processors of a first mode and a second mode; the baseband processor of the first mode reading information on a user card, and searching for a broadcast channel of the location according to a standard flow of the first mode; and the baseband processor of the second mode directly searching for the broadcast channel of the location; S2 the baseband processor of the first mode judging the geographic location where the dual-mode terminal is located; and the baseband processor of the second mode judging the geographic location where the dual-mode terminal is located; and S3 according to the sequence of obtaining the geographic location information by the baseband processors of the first mode and the second mode, judging which baseband processor is used to notify an application processor (AP) first, and then notifying the other baseband processor to continue or stop working by the AP. In the present invention, the two modes supported by the terminal are used in parallel. The network selection efficiency is improved by improving the speed for determining the geographic location where the terminal is located.

Description

Method for quickly selecting network of dual mode terminal

The present invention relates to the field of mobile communication technologies, and in particular, to a method for quickly selecting a network by a dual mode terminal. Background technique

In the current CDMA/GSM/WCDMA/WCDMA dual-mode terminals (including dual-mode dual-standby and dual-mode single-standby terminals) during international roaming, the terminal can only follow the location of the terminal at each boot. In a specific order, the modes supported by the terminal are sequentially activated, for example, according to the GSM/WCDMA mode after the first CDMA mode, and the geographic location is determined by searching the information of the relevant operator in each mode, thereby determining the terminal according to the requirements of the international roaming service. The final mode of use.

The shortcoming of this method is that it is a serial process and it is inefficient because it uses the mode supported by the terminal in turn. Therefore, in view of the above deficiencies, the present invention provides a method for quickly selecting a network by a dual mode terminal.

Summary of the invention

(1) Technical problems solved

In view of the deficiencies of the prior art, the present invention provides a method for rapidly selecting a network of a dual-mode terminal, which uses the two modes supported by the terminal in parallel, and improves the efficiency of the network selection by improving the speed of determining the geographical location of the terminal.

(2) Technical plan

To achieve the above object, the present invention is achieved by the following technical solutions:

A method for quickly selecting a network by a dual mode terminal, comprising the following steps:

Sl, the dual-mode terminal is powered on, the first mode baseband processor and the second mode baseband processor are simultaneously activated; the first mode baseband processor reads the information on the first mode card, and searches for the location broadcast according to the first mode process. Channel; the second mode baseband processor does not read the information on the second mode card, and directly searches for the broadcast channel at the location; 52. The first mode baseband processor parses information in the broadcast channel in the process of searching for a network, and determines a geographic location where the dual mode terminal is located by using the information; the second mode baseband processor parses information in the broadcast channel, and determines the dual mode terminal by using the information. Geographic location

53. Obtain a sequence of geographic location information according to the first mode baseband processor and the second mode baseband processor, and determine that the baseband processor first notifies the application processor AP, and then the application processor

The AP notifies the other baseband processor whether to continue or stop working.

In step S1, the first mode baseband processor searches for SID or MCC information in the location broadcast channel; the second mode baseband processor directly searches for the MCC λ-k in the location broadcast channel.

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Wherein, in step S3: if the first mode baseband processor first detects the preferential use of the dual mode terminal in the first mode card, the first mode baseband processor directly works; the application processor notifies the second mode baseband processor, After the second mode baseband processor is restarted, it is started according to the normal process.

Wherein, in step S3: if the second mode baseband processor first detects the preferential use of the dual mode terminal in the first mode card, the application processor notifies the first mode baseband processor, the first mode baseband processor directly works; After the second mode baseband processor is restarted, it is started according to the normal process.

Wherein, in step S3: if the first mode baseband processor first detects the roaming of the dual mode terminal in the first mode card, the first mode baseband processor is turned off, and the application processor notifies the second mode baseband processor, A mode card slot is connected to the second mode baseband processor, and the second mode baseband processor is restarted and operates according to a normal process.

Wherein, in step S3: if the second mode baseband processor first detects the roaming of the dual mode terminal in the mode card, the application processor notifies the first mode baseband processor, the first mode baseband processor is turned off, A mode card slot is connected to the second mode baseband processor, and the second mode baseband processor is restarted and operates according to a normal process.

Preferably, the first mode baseband processor is a CDMA baseband processor and the second mode baseband processor is a GSM/WCDMA baseband processor.

Among them, the CDMA baseband processor and the GSM/WCDMA baseband processor both have independent radio frequency units, and the radio frequency unit includes a BP chip, a radio frequency circuit and an antenna.

And the CDMA baseband processor and the GSM/WCDMA baseband processor can work independently. (3) Beneficial effects

The invention provides a method for rapidly selecting a network by a dual-mode terminal, and uses two modes supported by the terminal in parallel, thereby improving the efficiency of selecting a network by improving the speed of determining the geographical location of the terminal. DRAWINGS

FIG. 1 is a state diagram of a method for quickly selecting a network of a dual mode terminal;

FIG. 2 is a flow chart of a method for quickly selecting a network by a dual mode terminal.

detailed description

The method for quickly selecting a network for a dual mode terminal proposed by the present invention is described in detail in conjunction with FIGS. 1, 2 and the embodiment.

At present, CDMA/GSM/WCDMA dual-mode terminals (including dual-mode dual-standby and dual-mode single-standby terminals) can realize fast network selection by means of fast network selection by dual-mode terminals during each international roaming.

In this embodiment, the first mode baseband processor is a CDMA baseband processor, and the second mode baseband processor is a GSM/WCDMA baseband processor. The method for quickly selecting a network is as follows:

First, the dual-mode terminal is powered on, and the CDMA baseband processor and the GSM/WCDMA baseband processor are simultaneously started;

The CDMA baseband processor reads the information on the UIM card, searches for the SID or MCC information in the broadcast channel of the location according to the CDMA process; the GSM/WCDMA baseband processor does not read the information on the GSM/WCDMA card, and directly searches for the location broadcast channel. MCC information; secondly, the CDMA baseband processor parses the SID or MCC information in the broadcast channel in the process of searching the network, determines the geographical location of the dual-mode terminal through the SID or MCC information in the broadcast channel; GSM/WCDMA baseband processor resolves the broadcast The MCC information in the channel, and the location of the dual mode terminal is determined by the information;

According to the sequence of obtaining the geographical location information by the CDMA baseband processor and the GSM/WCDMA baseband processor, it is judged that the baseband processor first notifies the application processor AP, and then the application processor AP notifies whether the other baseband processor continues or stops. jobs.

If the CDMA baseband processor first detects the priority use of the dual mode terminal in the CDMA card, the CDMA baseband processor works directly; the application processor AP notifies The GSM/WCDMA baseband processor, after the GSM/WCDMA baseband processor is restarted, starts up according to the normal process.

If the GSM/WCDMA baseband processor first detects that the dual mode terminal is preferentially used in the CDMA card, the application processor AP notifies the CDMA baseband processor that the CDMA baseband processor operates directly; after the GSM/WCDMA baseband processor is restarted , start according to the normal process.

The priority mode of the first mode is set to mainland China, Macau, the United States, and the like.

If the CDMA baseband processor first detects that the dual mode terminal is roaming, turns off the CDMA baseband processor, the application processor AP notifies the GSM/WCDMA baseband processor, and connects the GSM/WCDMA baseband processor through the CDMA card slot, the GSM/WCDMA baseband The processor restarts and works according to the normal process.

If the GSM/WCDMA baseband processor first detects that the dual mode terminal is roaming, the application processor AP notifies the CDMA baseband processor, turns off the CDMA baseband processor, and connects the GSM/WCDMA baseband processor through the CDMA card slot, the GSM/WCDMA baseband The processor restarts and works according to the normal process.

In addition, in the dual mode terminal, the CDMA baseband processor and the GSM/WCDMA baseband processor each have an independent radio unit, and the radio unit includes a BP chip, a radio frequency circuit and an antenna;

And the CDMA baseband processor and the GSM/WCDMA baseband processor can work independently.

In the actual process, the first mode baseband processor may be a GSM/WCDMA baseband processor, and the second mode baseband processor may perform a fast network selection for the CDMA baseband processor.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the scope of the invention, and various modifications and changes can be made without departing from the spirit and scope of the invention. Equivalent technical solutions are also within the scope of the invention, and the scope of the invention is defined by the claims.

Claims

Rights request

A method for quickly selecting a network by a dual mode terminal, characterized in that it comprises the following steps:

51. The dual mode terminal is powered on, the first mode baseband processor and the second mode baseband processor are simultaneously started; the first mode baseband processor reads the information on the first mode card, and searches for the location broadcast according to the first mode process. Channel; the second mode baseband processor does not read the information on the second mode card, and directly searches for the broadcast channel at the location;

52. The first mode baseband processor parses information in the broadcast channel in the process of searching for a network, and determines a geographic location where the dual mode terminal is located by using the information; the second mode baseband processor parses information in the broadcast channel, and determines the dual mode terminal by using the information. Geographic location

S3. Obtain a sequence of geographic location information according to the first mode baseband processor and the second mode baseband processor, and determine that the baseband processor first notifies the application processor AP, and then the application processor AP notifies another baseband processor. Continue or stop working.

2. The method for rapidly selecting a network of a dual mode terminal according to claim 1, wherein in step S1: the first mode baseband processor searches for SID or MCC information in the location broadcast channel; the second mode baseband The processor directly searches for MCC information in the broadcast channel at the location.

3. The method for rapidly selecting a network of a dual mode terminal according to claim 1, wherein in step S3: if the first mode baseband processor first detects the priority use of the dual mode terminal in the first mode card The first mode baseband processor works directly; the application processor AP notifies the second mode baseband processor, and after the second mode baseband processor is restarted, it is started according to a normal process.

The method for rapidly selecting a network of a dual mode terminal according to claim 1, wherein in step S3: if the second mode baseband processor first detects the priority use of the dual mode terminal in the first mode card The application processor AP notifies the first mode baseband processor that the first mode baseband processor works directly; after the second mode baseband processor restarts, it is started according to a normal process.

The method for rapidly selecting a network of a dual mode terminal according to claim 1, wherein, in step S3: if the first mode baseband processor first detects the roaming of the dual mode terminal in the first mode card, The first mode baseband processor is turned off, the application processor AP notifies the second mode baseband processor, and the second mode baseband processor is connected through the first mode card slot, and the second mode baseband processor is heavy Start, work according to the normal process.

6. The method for rapidly selecting a network of a dual mode terminal according to claim 1, wherein in step S3: if the baseband processor in the second mode first detects the roaming of the dual mode terminal in the mode card, The application processor AP notifies the first mode baseband processor that the first mode baseband processor is turned off, the second mode baseband processor is connected through the first mode card slot, and the second mode baseband processor is restarted to operate according to a normal process.

The method for rapidly selecting a network of a dual mode terminal according to any one of claims 1 to 6, wherein the first mode baseband processor is a CDMA baseband processor, and the second mode baseband processor is a GSM. /WCDMA baseband processor.

8. The method for rapidly selecting a dual mode terminal according to claim 7, wherein the CDMA baseband processor and the GSM/WCDMA baseband processor each have an independent radio unit, and the radio unit comprises a BP chip, a radio frequency circuit, and antenna.

9. A method of rapidly selecting a network for a dual mode terminal as claimed in claim 8, characterized in that CDMA