WO2013044639A1

WO2013044639A1 - Network selection method and apparatus based on country code

Info

Publication number: WO2013044639A1
Application number: PCT/CN2012/075680
Authority: WO
Inventors: 庄莉
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-09-26
Filing date: 2012-05-17
Publication date: 2013-04-04
Also published as: CN102340845B; CN102340845A

Abstract

Disclosed are a network selection method and apparatus based on a country code. The method comprises: after a wireless terminal starts up and obtains a mobile country code, determining whether a mobile country code of a network is a mobile country code of a specific country; and when the mobile country code of the network is the mobile country code of the specific country and a network-searching mode is an automatic dual-mode mode, setting the network-searching mode to a 3G only mode. Compared with the prior art, by using the method and apparatus in the present invention, a limitation that a wireless terminal can carry out global search only according to frequency ranges is changed, and determination can be performed according to mobile country codes so as to carry out dynamic adjustment, thereby shortening the network-searching time; meanwhile the reporting of useless information can be avoided, and the normal operation of the wireless terminal in a mode can be ensured.

Description

TECHNICAL FIELD The present invention relates to the field of communications technologies, and in particular, to a country code based network selection method and apparatus. Background technique

Due to the extensive development of 3G wireless technology, operators and users are increasingly demanding wireless terminals. However, wireless communication needs to be seamlessly compatible with globalization. At present, the number of 3G bands existing in the world has increased to 16, The 4 bands that are popular in 2G are more and more demanding on the terminal, and with the increase of the frequency band, the time for finding the network will be slower and slower. How to reduce the waiting of users, how to register the network quickly, is A direction for national operator research.

Due to the particularity of 3G networks in some countries such as Japan, 3G networks are very mature, and the use of 2G networks is rare. At the same time, operators do not want users to host 2G networks, and even some operators are ready to shut down 2G networks. However, due to the increasingly close global contacts, users frequently travel between countries. It is impossible for users to set the network search mode according to the local environment. Therefore, when users are in other countries, the problem of slow network search may occur. Affect the user's experience. Summary of the invention

In view of this, the main purpose of the present invention is to provide a network code selection method and apparatus based on a country code, which can overcome the existing frequency band-based global search in any environment in the prior art, and increase the network search time. Problems and defects.

To achieve the above object, the present invention provides a network selection method based on a country code, including: after the wireless terminal is powered on and acquiring the mobile country code, determining whether the mobile country code of the network is Country-specific mobile country code;

When the mobile country code of the network is a mobile country code of a specific country and the network search mode is automatic dual mode, the network search mode is set to 3G only mode.

Further, the mobile country code of the specific country is very mature for the 3G network, or the code of the country where the operator does not want the user to reside in the 2G network.

Further, the method further includes: when starting to find a network, the radio resource management module of the wireless terminal notifies the physical layer of the frequency band information to be measured; the physical layer performs full frequency scanning on the current wireless environment, and notifies the radio resource management of the scan result. Module.

Further, the physical layer performs a full-frequency scan on the current wireless environment, and notifies the radio resource management module to: the physical layer receives the frequency scanning request sent by the RRC module, and performs the current wireless environment. The full-frequency scanning, the physical layer notifies the radio resource management module of the result of the frequency scanning; the radio resource management module sorts the results reported by the physical layer, and causes the physical layer to perform channel establishment request for each frequency band according to the order of strength and weakness.

Further, the method further includes: performing, according to the requirements of the radio resource management, the slot synchronization, the frame synchronization, acquiring the primary scrambling code, and then notifying the radio resource management module; the radio resource management module requesting the physical layer to read the system broadcast of the cell. The physical layer notifies the radio resource management module after acquiring the system broadcast message; the radio resource management module notifies the non-access stratum of the mobile country code in the obtained system broadcast message.

Further, after determining whether the mobile country code of the network is a mobile country code of a specific country, the method further includes: when the mobile country code of the network is not a mobile country code of a specific country, do not perform any operation, and maintain the original Find the network mode.

The invention also proposes a country code based network selection device, the device comprising a non-access layer module;

The non-access stratum module, after acquiring the mobile country code, determining whether the mobile country code of the network is a mobile country code of a specific country, if the mobile country code of the network is a specific country The mobile country code and the network search mode are automatic dual mode, then the network search mode is set to automatically find the network 3G only mode.

Further, the device further includes: a radio resource management module, a physical layer module, where the radio resource management module is configured to notify the physical layer module of the frequency band information to be measured, and let the physical layer module The frequency band performs a channel establishment request, and notifies the non-access stratum module of the mobile country code in the obtained system broadcast message;

And the physical layer module is configured to notify the radio resource management module of the result of the frequency scan and the obtained system broadcast message.

Further, the mobile country code of the specific country is very mature for the 3G network, or the mobile country code of the country where the operator does not want the user to camp on the 2G network.

Further, the physical layer module notifies the radio resource management module of the result of the frequency scanning: the physical layer module receives the frequency scanning request sent by the radio resource management module, performs full frequency scanning on the current wireless environment, and the physical layer module Notifying the radio resource management module of the result of the frequency scanning; the radio resource management module causes the physical layer module to perform a channel establishment request for each frequency band according to the order of strength and weakness: the radio resource management module sorts the results reported by the physical layer module, according to The order of strength and weakness allows the physical layer module to make a channel setup request for each frequency band.

Further, the physical layer module is further configured to perform time slot synchronization, frame synchronization, and acquire a primary scrambling code according to requirements of radio resource management, and then notify the radio resource management module; the radio resource management module is further configured to request a physical layer. The module reads the system broadcast message of the cell; the physical layer module is further configured to notify the radio resource management module after acquiring the system broadcast message; the radio resource management module is further configured to: use the mobile country code in the acquired system broadcast message Notify the non-access stratum module.

In summary, the use of the present invention has the following beneficial effects:

Compared with the prior art, the method and the device of the present invention are used to change the limitation that the wireless terminal can only perform global search according to the frequency band, and can be dynamically adjusted according to the mobile country code. It shortens the time for finding the network; at the same time, it can avoid the reporting of useless information and ensure that the wireless terminal works normally in one mode. DRAWINGS

1 is a schematic diagram of the composition of a network selection device based on a country code according to an embodiment of the present invention; and FIG. 2 is a schematic flowchart of a network selection method based on a country code according to an embodiment of the present invention. detailed description

The basic idea of the present invention is: after the wireless terminal is powered on and obtains the mobile country code, it is determined whether the mobile country code of the network is a mobile country code of a specific country; the mobile country code of the network is a mobile country code of a specific country and a network search mode. In the automatic dual mode mode, set the network search mode to 3G only mode.

Since 3GPP defines its own country code for each country in the definition process, and each country's network has its own characteristics, such as Japan, its network is very developed, and network operators want users to try to be on 3G networks. Since the wireless communication network has a unique network identifier, the mobile network identifier is composed of a mobile country code and a mobile network code, the mobile country code is a country to which the wireless communication network belongs, and the mobile network code is a network identifier of the network in the country, that is, Say all the networks of a country, the mobile country code is consistent. Due to the above features, the terminal device can set an appropriate network search mode by reading the mobile country code.

The invention overcomes the problem that the global search method based on the frequency band can only be performed in any environment in the prior art, increases the problem and defect of the network search time, and provides a method for setting the network selection based on the mobile country code, which greatly reduces The time when the terminal finds the network.

The technical solution of the present invention mainly includes the following basic steps:

1. The wireless data terminal is powered on;

2. Determine whether the network optimization mode is activated.

3. If the network optimization mode is turned off, use the access mode selected by the user to search for the network; 4. If the network optimization mode is enabled, and the dual mode network search mode or the multi mode network search mode is performed, step 5 is performed;

5. Determine whether the mobile country code is a country-specific code; the mobile country code of the specific country refers to a code of a country where the 3G network is very mature, or the operator does not want the user to camp on the 2G network.

6. If the mobile country code is a country-specific code, set the network search mode to only 3G (3G only) mode;

7. If the mobile country code is not a country-specific code, maintain the original network search mode.

The technical solutions of the present invention are described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to FIG. 1, FIG. 1 is a schematic diagram showing the composition of a network selection device based on a country code according to an embodiment of the present invention. The device includes a non-access stratum module, a radio resource management module, and a physical layer module;

The non-access stratum module is configured to perform functions such as mobility management, call control, short message, and session management. After obtaining the mobile country code, the non-access stratum module determines whether it is a mobile country code of a specific country. If the network search mode is automatic dual mode, set the network search mode to automatically find the network 3G only mode, otherwise it does not perform Any operation.

The radio resource management module is configured to control and manage radio resources. The radio resource management module notifies the physical layer module of the frequency band information to be measured; the radio resource management module sorts the results reported by the physical layer module, and causes the physical layer module to perform channel establishment request for each frequency band according to the order of strength and weakness; the radio resource management module The physical layer module is required to read the system broadcast message of the cell; the radio resource management module notifies the non-access stratum module of the mobile country code in the obtained system broadcast message.

The physical layer module is configured to provide a data transmission service for an upper layer. After receiving the frequency scanning request sent by the RRC module, the physical layer module performs full frequency scanning on the current wireless environment, and the physical layer module notifies the radio resource management module of the frequency scanning result; the physical layer module follows the radio resource management module. Requirements, time slot synchronization, frame synchronization, acquisition of the main scrambling code, After the wireless resource management module is notified, the physical layer module notifies the wireless resource management module after acquiring the system broadcast message.

Based on the foregoing device, please refer to FIG. 2, which is a schematic flowchart of a network selection method based on a country code according to an embodiment of the present invention, which includes the following steps:

S201: When the non-access layer searches for the network, set the network search mode;

Since the general user does not modify the network search mode, the network search mode is automatic dual mode.

S202: The radio resource management module receives the instruction of the non-access stratum, and notifies the physical layer of the frequency band information to be measured.

S203: The physical layer performs a full-frequency scan on the current wireless environment, and notifies the wireless resource management module of the scan result.

The physical layer receives the frequency scanning request from the RRC module, and performs full-frequency scanning on the current wireless environment. The physical layer notifies the radio resource management module of the result of the frequency scanning.

S204: The radio resource management module sorts the results reported by the physical layer, and causes the physical layer to perform a channel establishment request for each frequency band according to the order of strength and weakness.

S205: The physical layer performs time slot synchronization, frame synchronization, and acquires a primary scrambling code according to the requirements of the radio resource management module, and then notifies the radio resource management module.

S206: The radio resource management module requires the physical layer to read the system broadcast message of the cell.

S207: The physical layer notifies the radio resource management module after acquiring the system broadcast message.

S208: The radio resource management module notifies the non-access stratum of the mobile country code in the obtained system broadcast message.

S209: After obtaining the mobile country code, the non-access stratum determines whether it is the mobile country code 440 of Japan. If it is the mobile country code of Japan and the network search mode is automatic dual mode, setting the network search mode to automatically find the network 3G only Mode, otherwise no action is taken.

S210: The non-access stratum determines whether the network search process has changed according to the judgment, if a change occurs. The RRC module will be required to re-search the network, otherwise no action will be taken.

S211: After acquiring the system broadcast message, the radio resource management module sets a cell access condition and a cell selection criterion to the physical layer.

S212: The physical layer determines, according to the condition given by the radio resource management module, whether the current cell meets the camping requirement, and then notifies the radio resource management module.

S213: The radio resource management module requires the wireless terminal to camp on the cell.

S214: The radio resource management module notifies the non-access stratum to obtain system services.

This solution extracts the specific network conditions in Japan, and accelerates the search for the network, so that users can use 3G networks in Japan as much as possible, which improves the use efficiency of network resources and improves the user experience. At the same time, the automatic dual-mode mode is used for roaming abroad. There is no negative solution for users roaming abroad. Not only in Japan, but also in countries with the same network environment in Japan. If the network search is to be accelerated according to the mobile country code, the user is provided with an interface for configuring the mobile country code, and the user dynamic configuration needs to optimize the mobile country code for the network search function. After the non-access stratum obtains the currently registered mobile country code, compared with the user-configured mobile country code, if the two are the same, and the network search mode is automatic dual mode, the network search mode is set to 3G only, otherwise Do anything. In this way, users can easily use it between countries, and dynamically optimize the network search function.

Of course, the present invention may be embodied in various other modifications and changes without departing from the spirit and scope of the invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles are intended to be included within the scope of the present invention.

Claims

Claim

A method for selecting a network based on a country code, the method comprising: after the wireless terminal is powered on and acquiring the mobile country code, determining whether the mobile country code of the network is a mobile country code of a specific country;

When the mobile country code of the network is a mobile country code of a specific country and the network search mode is automatic dual mode, the network search mode is set to only 3G (3G only) mode.

2. The method according to claim 1, wherein the mobile country code of the specific country is a mature 3G network, or a code of a country where the operator does not want the user to camp on the 2G network.

3. The method of claim 2, wherein the method further comprises:

When the network is started, the radio resource management module of the wireless terminal notifies the physical layer of the frequency band information to be measured; the physical layer scans the current wireless environment at full frequency, and notifies the wireless resource management module of the scan result.

4. The method according to claim 3, wherein the physical layer performs a full frequency scan on the current wireless environment, and notifies the radio resource management module of the scan result as:

The physical layer receives the frequency scanning request sent by the RRC module, performs full-frequency scanning on the current wireless environment, and the physical layer notifies the radio resource management module of the result of the frequency scanning; the radio resource management module performs the result reported by the physical layer. Sorting, in the order of strength and weakness, allows the physical layer to make channel establishment requests for each frequency band.

5. The method of claim 4, wherein the method further comprises:

The physical layer performs time slot synchronization, frame synchronization, and acquisition of the primary scrambling code according to the requirements of radio resource management, and then notifies the radio resource management module; the radio resource management module requires the physical layer to read the system broadcast message of the cell; and the physical layer acquires the system broadcast message. And then notifying the radio resource management module; the radio resource management module notifying the non-access stratum of the mobile country code in the obtained system broadcast message.

The method according to claim 5, wherein, after the determining whether the mobile country code of the network is a mobile country code of a specific country, the method further includes: When the mobile country code of the network is not the mobile country code of a specific country, no operation is performed, and the original network search mode is maintained.

A network selection device based on a country code, wherein the device comprises: a non-access layer module;

The non-access stratum module, after acquiring the mobile country code, determining whether the mobile country code of the network is a mobile country code of a specific country, if the mobile country code of the network is a mobile country code of a specific country and searching for a network mode If it is automatic dual mode, set the network search mode to automatically find the network 3G only mode.

The device of claim 7, further comprising: a radio resource management module and a physical layer module;

The radio resource management module is configured to notify the physical layer module of the frequency band information to be measured, and let the physical layer module perform a channel establishment request for each frequency band according to the order of strength and weakness, and notify the mobile country code in the obtained system broadcast message. Non-access stratum module;

9. The apparatus according to claim 7, wherein the mobile country code of the specific country is a mature 3G network, or a mobile country code of a country where the operator does not want the user to camp on the 2G network.

10. Apparatus according to claim 7 wherein:

The physical layer module notifies the radio resource management module of the result of the frequency scanning: the physical layer module receives the frequency scanning request sent by the radio resource management module, performs full frequency scanning on the current wireless environment, and the physical layer module scans the frequency The radio resource management module notifies the radio resource management module; the radio resource management module causes the physical layer module to perform channel establishment request for each frequency band according to the order of strength and weakness: the radio resource management module sorts the results reported by the physical layer module, according to the strength and weakness The sequence allows the physical layer module to make a channel setup request for each frequency band.

11. Apparatus according to claim 7 wherein:

The physical layer module is further configured to perform time slot synchronization, frame synchronization, acquire a primary scrambling code according to requirements of radio resource management, and then notify the radio resource management module;

The radio resource management module is further configured to: ask the physical layer module to read a system broadcast message of the cell;

The physical layer module is further configured to notify the radio resource management module after acquiring the system broadcast message, where the radio resource management module is further configured to notify the non-access stratum module of the mobile country code in the obtained system broadcast message.