CN108718457B

CN108718457B - Network reselection method, device, chip and storage medium

Info

Publication number: CN108718457B
Application number: CN201810594789.6A
Authority: CN
Inventors: 陈燕绿
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-06-11
Filing date: 2018-06-11
Publication date: 2021-04-09
Anticipated expiration: 2038-06-11
Also published as: CN108718457A

Abstract

The embodiment of the application provides a method, a device, a chip and a storage medium for network reselection, wherein the method comprises the following steps: acquiring the position information of the terminal equipment in a roaming state; determining an HPLMN reselection strategy according to the position information of the terminal equipment, wherein the HPLMN reselection strategy comprises at least one of the following: whether to execute the search of the HPLMN, whether to execute the registration of the HPLMN, and a search period adopted when the search of the HPLMN is executed; executing the HPLMN reselection policy. According to the technical scheme provided by the application, the HPLMN reselection strategy can be flexibly determined according to different position information of the terminal equipment, the same reselection strategy is prevented from being adopted at any position, namely, the searching and registering processes of the HPLMN can be prevented from being carried out at any position, the same searching period is adopted when the searching of the HPLMN is carried out, and the flexibility of the reselection process can be improved.

Description

Network reselection method, device, chip and storage medium

Technical Field

The embodiments of the present application relate to the field of communications, and in particular, to a network reselection method, apparatus, chip, and storage medium.

Background

A Public Land Mobile Network (PLMN) refers to a network established and operated by the government or an approved operator thereof for the purpose of providing a land mobile communication service to the public. The network is typically interconnected with the public switched telephone network to form a communications network of regional or national scale.

When the PLMN of the network to which the terminal device is connected is not consistent with a corresponding PLMN in a Subscriber Identity Module (SIM) card, it indicates that the terminal device is in a roaming state. The terminal device in the roaming state usually performs reselection in a fixed reselection manner. For example, when the terminal device is in a roaming state, a local public land mobile network (home PLMN, HPLMN) is searched according to a timer timeout trigger according to a value of a timer prestored in the SIM card. However, the value of the timer is often difficult to set accurately. The use of a fixed reselection scheme makes the reselection process inflexible.

Disclosure of Invention

The embodiment of the application provides a network reselection method, a network reselection device, a network reselection chip and a network reselection storage medium, which can flexibly determine a HPLMN reselection strategy based on position information in a HPLMN reselection process, and avoid the problems of power waste or low reselection efficiency.

In one aspect, a method for network reselection is provided, including: acquiring the position information of the terminal equipment in a roaming state; determining an HPLMN reselection strategy according to the position information of the terminal equipment, wherein the HPLMN reselection strategy comprises at least one of the following: whether to execute the search of the HPLMN, whether to execute the registration of the HPLMN, and a search period adopted when the search of the HPLMN is executed; executing the HPLMN reselection policy.

According to the technical scheme, the HPLMN reselection strategy can be flexibly determined according to the position information of the terminal equipment, the same reselection strategy is prevented from being adopted at any position, namely, the searching and registering processes of the HPLMN can be prevented from being carried out at any position, the same searching period is adopted when the searching of the HPLMN is carried out, and the flexibility of the reselection process can be improved.

In some possible implementation manners, the determining an HPLMN reselection policy according to the location information of the terminal device includes: determining the area type of the terminal equipment according to the position information of the terminal equipment, wherein the area type comprises at least two of the following areas: domestic, overseas, border areas; and determining the HPLMN reselection strategy according to the area type of the terminal equipment.

In some possible implementations, the determining the HPLMN reselection policy according to the area type of the terminal device includes: and when the area type of the terminal equipment is the border area, determining that the HPLMN reselection strategy is to execute the search of the HPLMN, and executing the registration of the HPLMN under the condition that the HPLMN is searched.

When the terminal device is located in the border area, if the home network can be searched, the terminal device can select to directly register the home network, and establish the communication connection between the terminal device and the home network. The embodiment of the application can ignore the restriction that the MCC of the roaming network is the same as the MCC of the home network, and can specifically avoid the problem that the terminal equipment does not register the home network when the MCC of the roaming network is inconsistent with the MCC of the home network in the roaming state. Since this may cause the terminal device to return to an area having a home network from the roaming network, the home network cannot be registered even if the home network is searched, and a communication connection between the terminal device and the home network cannot be established.

In some possible implementations, the determining the HPLMN reselection policy according to the area type of the terminal device includes: when the area type of the terminal equipment is a border area, determining the HPLMN reselection strategy as determining that the search period of the HPLMN is a first value; when the area type of the terminal equipment is an intra-area, determining the HPLMN reselection strategy as determining that the search period of the HPLMN is a second value, wherein the second value is larger than the first value.

The second value may be set in accordance with conventional schemes and the first value may be less than or equal to the second value. Therefore, when the terminal equipment is in the border area, the quick search of the home network can be executed, so that the terminal equipment can return to the home network in time, and the reselection efficiency is improved.

In some possible implementations, the determining the HPLMN reselection policy according to the area type of the terminal device includes: when the area type of the terminal equipment is an intra-area, determining the HPLMN reselection strategy as a second value of the search period of the HPLMN; and when the area type of the terminal equipment is an overseas area, determining the HPLMN reselection strategy as determining that the search period of the HPLMN is a third value, wherein the third value is larger than the second value.

The second value may be set in accordance with conventional schemes and the third value may be greater than or equal to the second value. When the terminal equipment is in the overseas roaming state, because the overseas area has no home network or has extremely low possibility of having the home network, the search period of the HPLMN which is longer than that of the domestic area can be set, so that the power consumption of the terminal equipment is reduced, and the purpose of saving power is achieved.

In some possible implementations, the determining the HPLMN reselection policy according to the area type of the terminal device includes: when the area type of the terminal equipment is a border area, determining the HPLMN reselection strategy as determining that the search period of the HPLMN is a first value; and when the area type of the terminal equipment is an overseas area, determining the HPLMN reselection strategy as determining that the search period of the HPLMN is a third value, wherein the third value is larger than the first value.

According to the technical scheme provided by the application, the border area has high possibility of having the home network, and a short HPLMN search period can be set, for example, the HPLMN search period of the border area can be set to be shorter than that of the overseas area, so that high-frequency and quick search can be performed, and the terminal equipment can return to the home network as soon as possible. The overseas area does not have a home network, and a longer HPLMN search period can be set, so that excessive power consumption can be avoided.

In some possible implementations, the determining the HPLMN reselection policy according to the area type of the terminal device includes: and when the area type of the terminal equipment is the overseas area, determining that the HPLMN reselection strategy is not to execute the search of the HPLMN.

If the terminal device is located in an overseas area and in a roaming state, the conventional scheme may continuously search for the home network according to a certain search period. However, since the overseas area usually does not store the home network, this reselection method causes unnecessary power waste. In the method and the device, when the terminal equipment is judged to be located in the overseas area, the search of the home network can be selected not to be executed, so that the search power of the terminal equipment can be saved, and the purpose of saving electricity is achieved.

In some possible implementation manners, the determining, according to the location information of the terminal device, the area type of the terminal device includes: and determining the area type of the terminal equipment according to the position information of the terminal equipment and the corresponding relation between the preset position information and the area type.

In some possible implementation manners, the location information of the terminal device includes longitude and latitude information and/or cell ID information of the terminal device.

In a second aspect, there is provided a network reselection apparatus that may perform the method of the first aspect or any optional implementation manner of the first aspect. In particular, the network reselection apparatus may comprise functional means for performing the method of the first aspect described above or any possible implementation manner of the first aspect.

In a third aspect, an apparatus for network reselection is provided, including: including a processor and memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method of the first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, a chip is provided for performing the method in the first aspect or any implementation manner of the first aspect.

The chip comprises a processor for calling and running a computer program from a memory, such that a device in which the chip is installed performs the method as described above in the first aspect or any possible implementation manner of the first aspect.

In a fifth aspect, a computer-readable storage medium is provided, where the storage medium is used to store a computer program, and the computer program is used to execute the method in the first aspect or any implementation manner of the first aspect.

A sixth aspect provides a computer program product comprising computer program instructions for carrying out the method of the first aspect described above or any one of the implementations of the first aspect.

In a seventh aspect, a computer program is provided, which, when run on a computer, causes the computer to perform the method of the first aspect or any one of the implementations of the first aspect.

Drawings

Fig. 1 is a block diagram of a mobile phone according to an embodiment of the present disclosure;

fig. 2 is a schematic flow chart of a method for network reselection provided by an embodiment of the present application;

fig. 3 is a schematic flow chart of another network reselection method provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of area type division provided in an embodiment of the present application;

fig. 5 is a schematic flow chart of another network reselection method provided in an embodiment of the present application;

fig. 6 is a schematic block diagram of a network reselection apparatus provided in an embodiment of the present application;

fig. 7 is a schematic structural diagram of another network reselection device provided in an embodiment of the present application;

fig. 8 is a schematic structural diagram of a chip provided in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

The terminal device according to the embodiment of the present application may be a terminal device having a network access function, such as a smart phone, e.g., an android mobile phone, an Internet Operating System (iOS) mobile phone, a tablet computer, a palm computer, and a Mobile Internet Device (MID).

Taking a mobile phone as an example, fig. 1 is a block diagram showing a partial structure of a mobile phone 100. Referring to fig. 1, a cellular phone 100 includes: radio Frequency (RF) circuitry 110, memory 120, other input devices 130, a display screen 140, sensors 150, audio circuitry 160, an I/O subsystem 170, a processor 180, and a power supply 190. Those skilled in the art will appreciate that the handset configuration shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or may combine certain components, or split certain components, or arranged in different components. Those skilled in the art will appreciate that the display 140 is part of a User Interface (UI) and that the handset 100 may include more or fewer user interfaces than shown.

A PLMN is a network established and operated by the government or its approved operators for the purpose of providing land mobile services to the public. The network is typically interconnected with the public switched telephone network to form a communications network of regional or national scale. The PLMN includes a Mobile Country Code (MCC) and a mobile network number (MNC). MCC is used to uniquely identify the country to which the terminal device belongs, and typically consists of 3 digits. For example, MCC in china is 460. The MNC is used for identifying a mobile network to which the terminal equipment belongs and generally consists of 2-3 digits. For example, the MNC may be used to identify the mobile network to which the terminal device belongs as china mobile, china unicom, or chinese telecommunications, etc. For example, the PLMNs in china mobile are 46000, 46002 and 46007, and the PLMNs in china unicom are 46001, 46006 and 46009.

When the MCC and MNC of the mobile network to which the terminal device is accessed is the same as the MCC and MNC stored in the SIM card, the mobile network is called the home network or the home network of the terminal device, and is denoted by HPLMN. When the terminal equipment is in the HPLMN, the network roaming of the terminal equipment is not generated. When any one of the MCC and MNC of the mobile network accessed by the terminal equipment is different from the MCC and MNC stored in the SIM card, the terminal equipment is in a roaming state.

In a conventional scheme, a search period of the HPLMN is usually set in the SIM card, and when it is determined that the terminal device is in a roaming state, the terminal device performs a search of the HPLMN according to the search period so as to return to the home network in time. Generally, the search period may be represented by a timer (timer). When the terminal equipment is in a roaming state, the terminal equipment starts a timer and executes HPLMN search according to overtime triggering of the timer.

When the terminal equipment is in an overseas area, the HPLMN does not exist at the moment, but the terminal equipment can still search the HPLMN according to the overtime trigger of the timer. At this time, if the value of the timer is set to be small, unnecessary power consumption is caused. Furthermore, when the terminal device is in the border area, if the value of the timer is set too long, the terminal device may take a long time to access the HPLMN, resulting in inefficient reselection of the HPLMN.

The embodiment of the application provides a network reselection method, which can avoid the problems of unnecessary power consumption and low reselection efficiency.

Fig. 2 is a schematic flow chart of a method for network reselection provided in an embodiment of the present application. The method of FIG. 2 includes steps 210 and 230, which are described in detail below for steps 210 and 230, respectively.

The embodiment of the present application is described by taking a terminal device as an example.

In 210, location information of a terminal device in a roaming state is acquired. The location information of the terminal device may be current location information of the terminal device.

The location information of the terminal device may be longitude and latitude information of the terminal device, and/or ID information of a cell in which the terminal device is located. The latitude and longitude information of the terminal device may be obtained through Global Positioning System (GPS), wireless fidelity (WiFi) positioning, Beidou positioning, Assisted Global Positioning System (AGPS), or base station positioning. The cell ID where the terminal device is located may be obtained through cell information obtained in a process of performing frequency search on a home network, for example, the terminal device may search ID information of a plurality of cells nearby when performing frequency search, and may locate approximate current location information of the terminal device according to the ID information of the plurality of cells.

Optionally, when the terminal device registers in the roaming network, the current location of the terminal device may be preferentially located according to the longitude and latitude information where the terminal device is currently located. When the terminal device cannot detect the current latest position information, the current position of the terminal device can also be located through the cell ID obtained by the terminal device in the frequency searching process.

The time for acquiring the position information of the terminal device is not specifically limited in the embodiment of the present application.

As an example, acquiring the location information of the terminal device may be that the terminal device periodically acquires. For example, if it is detected that the location of the terminal device is in a foreign area, the acquisition period setting may be longer than the domestic area. If the position of the terminal device is detected to be in the border area, the acquisition period may be set to be shorter than that in the overseas area. The acquisition period may be a default period of the system or a period set by the user.

In addition, the acquisition of the location information of the terminal device may also be triggered by the user to acquire the location information.

In step 120, the terminal device determines an HPLMN reselection policy according to the location information of the terminal device.

The HPLMN reselection policy may, for example, comprise at least one of: whether to perform a search of the HPLMN, whether to perform a registration of the HPLMN, a search period employed when performing a search of the HPLMN. For example: the HPLMN reselection policy may be to not perform a search of the HPLMN. For another example, the HPLMN reselection policy may be to perform a search of the HPLMN and perform registration of the HPLMN after the search of the HPLMN. As another example, the HPLMN reselection policy may be to perform a search of the HPLMN within a certain search period.

The embodiment of the present application does not specifically limit the search period used when performing the HPLMN search.

As one example, the search period employed when performing the HPLMN search may be equal to the sum of the duration of the timer and the search duration of the HPLMN. As another example, since the search time of the HPLMN is short, the search time of the HPLMN may be ignored, and the duration of the timer may be directly used as the search period used when performing the search of the HPLMN. As yet another example, the search period employed when performing the HPLMN search may also be a period that varies with the number of searches. For example, the search period used when the first HPLMN search is performed is 30 minutes, the search period used when the second HPLMN search is performed is 60 minutes, and the search period used when the third HPLMN search is performed is 90 minutes, and the like.

When the terminal device searches for the HPLMN or successfully registers to the HPLMN, the timer may be turned off, and the search for the HPLMN is not continuously performed.

Optionally, in the embodiment of the present application, different HPLMN reselection policies may be selected directly according to the location information of the terminal device. For example, the correspondence between the location information and the HPLMN reselection policy is prestored in the terminal device. After obtaining the location information of the terminal device, the terminal device may determine the HPLMN reselection policy according to the correspondence. The correspondence between the location information and the HPLMN reselection policy may be a correspondence between a location range and the HPLMN reselection policy.

In step 130, the terminal device executes the HPLMN reselection policy.

In the technical scheme provided by the embodiment of the application, the terminal equipment can flexibly determine the reselection strategy of the HPLMN according to different position information of the terminal equipment, and avoids the adoption of the same reselection strategy at any position, namely, the searching and registering processes of the HPLMN can be avoided at any position, and the same searching period is adopted when the searching of the HPLMN is executed, so that the flexibility of the reselection process can be improved.

The specific implementation of step 220 is illustrated below with reference to fig. 3.

FIG. 3 is a schematic flow chart diagram of one implementation of step 220 in FIG. 1. The method of FIG. 3 may include steps 310-320, and the steps 310-320 are described in detail below.

In step 310, the area type of the terminal device is determined according to the position information of the terminal device.

In step 320, a reselection policy for the HPLMN is determined based on the area type of the terminal device.

The area type of the terminal device is not specifically limited in the embodiment of the present application. In some embodiments, the zone type of the terminal device may include: domestic areas, overseas areas and border areas. In other embodiments, the zone types of the terminal device may include: domestic and overseas areas. In addition, the area type of the terminal device may include other more areas.

The division of the area type may be in various ways, and the embodiment of the present application is not particularly limited.

As one example, the regions may be divided according to country border lines. For example: the domestic region may be a region within a country or region border line, and the overseas region may be a region within other country or region border lines. The border area may be an area other than the domestic area and the overseas area. Another example is: the domestic region may be a region within a certain range of a country or region border line, the overseas region may be a region within a certain range of another country or region border line, and the border region may be a region other than the domestic region and the overseas region.

The division of the region types according to the embodiment of the present application is described in detail below with reference to fig. 4.

As shown in fig. 4, border lines 430 may be used to distinguish different countries or regions. On one side of the border line 430 is domestic and on the other side is foreign. The domestic area may be an area in which the border line 430 is deviated from the domestic direction within a certain range, the overseas area may be an area in which the border line 430 is deviated from the overseas direction within a certain range, and the border area may be an area formed by the area line 420 and the area line 440. The terminal device 410 may establish a communication connection with a domestic and/or foreign mobile network. The deviation may be, for example, a deviation from a certain longitude difference and/or latitude difference, which may be expressed in degrees. For example, M degrees in the longitudinal direction and/or N degrees in the latitudinal direction, in other words, the difference in longitude of the border line 430 and the area line 420 is M degrees and/or the difference in latitude is N degrees, where M, N is an integer greater than 0. Likewise, the deviation may be in a range of M degrees in longitude and/or N degrees in latitude between the border line 430 and the area line 440.

Alternatively, when the division of the area type is divided according to the cell ID information in which the terminal device is located, the division may be performed with reference to a border line. As one example, the division may be made as described above with a deviation from a certain longitude difference and/or latitude difference. As another example, the division may also be performed by a number of cells deviating from a certain number. For example, the domestic area may be an area in which the border line is deviated from the domestic direction by n cells. The overseas area may be an area where the border line is deviated from the foreign direction by m cells. Wherein n and m are positive integers greater than or equal to 1. The border area may be an area other than the domestic area and the overseas area.

As another example, the division of the zone may also be made according to whether the MCC value of the mobile network is the same as the MCC value of the home network. For example, the area having the same MCC value may be set as a home area, the area having different MCCs may be set as a foreign area, and the area having both the mobile networks having the same MCC value and the mobile networks having different MCCs may be set as a border area.

In this embodiment, if the MCC value of the roaming network of the terminal device is different from the MCC value of the home network, it indicates that the terminal device is in the international roaming state.

If the terminal device roams to hong kong, australia, taiwan, etc., the roaming state may also belong to an international roaming state.

In this embodiment of the application, step 310 may determine the area type of the terminal device according to the location information of the terminal device and a preset corresponding relationship between the location information and the area type. The preset location information may be, for example, longitude and latitude information of a main country and/or region, longitude and latitude information corresponding to a country city, cell ID information of some specific countries, cell ID information corresponding to a country city, and the like.

For example, the correspondence between preset position information and the area type may be stored in advance in the terminal device. The pre-stored corresponding relation can be set in the terminal device before the terminal device leaves the factory, so that the implementation is simple. Or after the terminal device leaves the factory, the user downloads the terminal device in an off-line downloading manner, so that the user can flexibly adjust or change the corresponding relationship. Secondly, if the current position information of the terminal equipment is obtained, the type of the area where the terminal equipment is located can be determined according to the corresponding relation.

If the terminal device can obtain the current longitude and latitude information of the terminal device, the current area type of the terminal device can be determined according to the corresponding relation between the longitude and latitude information and the area type. If the terminal device can obtain the cell ID information of the current location of the terminal device, the area type of the current location of the terminal device can be determined according to the corresponding relationship between the cell ID information and the area type.

Border areas typically have multiple networks, possibly both home and roaming networks. In this embodiment of the present application, when the area type of the terminal device is a border area, determining that the HPLMN reselection policy is to perform a search of an HPLMN, and register the HPLMN when the HPLMN is searched, where an MCC of a roaming network where the terminal device is located is the same as or different from an MCC in an International Mobile Subscriber Identity (IMSI) of the terminal device.

In the conventional scheme, when the terminal device is in a roaming state, if the MCC of the roaming network is not consistent with the MCC of the home network, the terminal device does not register with the home network. This may cause that, when the terminal device returns from the roaming network to an area having a home network, the terminal device cannot register with the home network even if the home network is searched, and cannot establish a communication connection between the terminal device and the home network.

The embodiment of the application can ignore the restriction that the MCC of the roaming network is the same as the MCC of the home network. When the terminal device is located in the border area, if the home network can be searched, the terminal device can select to directly register the home network, and establish the communication connection between the terminal device and the home network.

Optionally, the embodiment of the present application may further determine the HPLMN reselection policy in consideration of parameters such as signal strength and/or quality of service (QoS) of the searched home network. The signal strength may be represented by parameters such as received power. For example, if the signal quality of the searched home network is poor or the service quality is not good, the home network may be selected not to be registered. For example, if the signal strength or the service quality of the currently searched home network does not reach a preset threshold, the terminal device may choose not to register with the home network and remain in the roaming network state. And if the signal intensity or the service quality of the currently searched home network reaches a preset threshold value, selecting to register the home network, and establishing communication connection between the terminal equipment and the home network.

Optionally, in this embodiment of the present application, when the terminal device roams in the border area, since the probability that the border area has a home network is relatively high, at this time, a high-frequency and fast HPLMN reselection policy may be implemented.

For example, a shorter search period for the HPLMN may be set so that the end device can return to the home network in a timely manner. The search period for reselecting the HPLMN set in the current protocol is generally 6 minutes to 8 hours, and in the embodiment of the present application, the search period for reselecting the HPLMN may be set to be less than or equal to 6 minutes, or may also be set to be a period with a small influence on the terminal device, such as 12 minutes and 30 minutes.

In the embodiment of the application, when the terminal equipment is in the domestic area, the terminal equipment may have domestic roaming. When the terminal device is in the national roaming state, the reselection of the HPLMN can be performed according to a search period set in the conventional scheme.

When the area type of the terminal equipment is the border area, determining that the HPLMN reselection strategy is set as a first value of a search period of the HPLMN; and when the area type of the terminal equipment is the domestic area, determining that the HPLMN reselection strategy is set to be a second value of the search period of the HPLMN. Wherein the second value is greater than or equal to the first value, and the first value and the second value can be read from the SIM card.

The second value may be set in accordance with conventional schemes and the first value may be less than or equal to the second value. Therefore, when the terminal equipment is in the border area, the fast HPLMN search can be executed, so that the terminal equipment can return to the home network in time, and the reselection efficiency is improved.

When the area type of the terminal equipment is an intra-area, determining that the HPLMN reselection strategy is a second value of the search period of the HPLMN; and when the area type of the terminal equipment is the overseas area, determining that the HPLMN reselection strategy is set to be a third value of the search period of the HPLMN. Wherein the third value is greater than or equal to the second value, and the second value and the third value can be read from the SIM card.

The second value may be set in accordance with conventional schemes and the third value may be greater than or equal to the second value. When the terminal device is in the overseas roaming state, because the overseas area has no home network or has very low possibility of having the home network, the search period of the HPLMN can be set longer than that of the domestic area, so as to reduce the power consumption of the terminal device and achieve the purpose of saving power. For example, the search period may be set to a period that has a small influence on the terminal device, such as 12 hours, 24 hours, or 48 hours.

When the area type of the terminal equipment is the border area, determining that the HPLMN reselection strategy is set as a first value of a search period of the HPLMN; and when the area type of the terminal equipment is the overseas area, determining that the HPLMN reselection strategy is set to be a third value of the search period of the HPLMN. Wherein the third value is greater than or equal to the first value, the first value and the third value being readable from the SIM card.

In the embodiment of the application, the border area has a high possibility of having a home network, and a short HPLMN search period can be set, for example, the HPLMN search period can be set to be shorter than that of an overseas area, so that high-frequency and rapid search can be performed, and the terminal device can return to the home network as soon as possible. The overseas area does not have a home network, and a longer HPLMN search period can be set, so that excessive power consumption can be avoided.

Optionally, when the area type of the terminal device is an overseas area, determining that the HPLMN reselection policy is not to perform the search of the HPLMN.

If the terminal device is located in an overseas area and in a roaming state, the conventional scheme may continuously search for the home network according to a certain search period. However, since the overseas area does not store the home network, this reselection method causes unnecessary power waste. In the embodiment of the application, when the terminal equipment is judged to be located in the overseas area, the search of the home network can be selected not to be executed, so that the search power of the terminal equipment can be saved, and the aim of saving electricity is fulfilled.

When the terminal equipment is out of service or just powered on, the normal search and registration process of the HPLMN can be executed. For example, the terminal device may preferentially perform a search and registration procedure of a home network. If the terminal device searches for the home network, the terminal device can directly register the home network to establish communication connection between the terminal device and the home network. If the terminal device does not search for the home network, the terminal device may search for a roaming network and register the searched roaming network. At this time, the terminal device is in a roaming state. When the terminal device is in the roaming state, HPLMN reselection may be performed in the manner described above. To avoid encumbrance, it will not be described here.

It should be noted that, without conflict, the embodiments and/or technical features in the embodiments described in the present application may be arbitrarily combined with each other, and the technical solutions obtained after the combination also fall within the protection scope of the present application.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Fig. 5 is a schematic flow chart of a method for network reselection provided in an embodiment of the present application. As described in detail below in conjunction with fig. 5.

And S510, acquiring the position information of the terminal equipment in the roaming state.

S520, the corresponding relation between the position information of the terminal equipment and the area type is offline to the terminal equipment.

S530, determining the area type of the terminal equipment according to the position information of the terminal equipment and the corresponding relation between the position information and the area type, wherein the area type comprises at least two of the following areas: domestic area, overseas area, border area.

S540, according to the area type of the terminal equipment, determining an HPLMN reselection strategy, wherein the HPLMN reselection strategy comprises at least one of the following: whether to perform a search of the HPLMN, whether to perform a registration of the HPLMN, a search period employed when performing a search of the HPLMN.

And S550, when the HPLMN reselection strategy is determined to be the HPLMN search execution strategy, summarizing and reading the value of a timer from the SIM card, wherein the value of the timer represents the search period of the HPLMN.

S560, searching the HPLMN according to the value of the timer.

S570, in case of searching the HPLMN, performing registration of the HPLMN, thereby establishing a communication connection between the terminal device and the HPLMN.

And S580, when the HPLMN reselection strategy is determined not to execute the search of the HPLMN, not searching the HPLMN.

Having described the method for network reselection in detail above, the apparatus for network reselection according to the embodiment of the present application will be described below with reference to fig. 6 to 8, and the technical features described in the embodiment of the method are applicable to the following apparatus embodiments, and the apparatus for network reselection according to the embodiment of the present application may be, for example, a terminal device.

Fig. 6 is a schematic block diagram of an apparatus for network reselection according to an embodiment of the present application. As shown in fig. 6, the network reselection apparatus 600 includes an obtaining unit 610, a determining unit 620, and an executing unit 630.

An obtaining unit 610 is configured to obtain location information of a terminal device in a roaming state.

A determining unit 620, configured to determine, according to the location information of the terminal device, an HPLMN reselection policy, where the HPLMN reselection policy includes at least one of: whether to perform a search of the HPLMN, whether to perform a registration of the HPLMN, a search period employed when performing a search of the HPLMN.

An executing unit 630, configured to execute the HPLMN reselection policy.

In the technical scheme provided by the embodiment of the application, the HPLMN reselection strategy can be flexibly determined according to different position information of the terminal equipment, the same reselection strategy is prevented from being adopted at any position, that is, the searching and registering processes of the HPLMN can be prevented from being carried out at any position, the same searching period is adopted when the HPLMN searching is carried out, and the flexibility of the reselection process can be improved.

Optionally, the determining unit 620 is configured to: determining the area type of the terminal equipment according to the position information of the terminal equipment, wherein the area type comprises at least two of the following areas: domestic, overseas, border areas; and determining the HPLMN reselection strategy according to the area type of the terminal equipment.

Optionally, the determining unit 620 is configured to: and when the area type of the terminal equipment is the border area, determining that the HPLMN reselection strategy is a first HPLMN reselection strategy, wherein the first HPLMN reselection strategy comprises the steps of executing search of the HPLMN and executing search and registration of the HPLMN under the condition that the HPLMN is searched, and the MCC of a roaming network where the terminal equipment is located is the same as or different from the MCC in the IMSI of the terminal equipment.

Optionally, the determining unit 620 is configured to: when the area type of the terminal equipment is the border area, determining that the HPLMN reselection strategy is set to be a first value of a search period of the HPLMN; when the area type of the terminal equipment is an intra-area, determining that the HPLMN reselection strategy is to set the search period of the HPLMN to be a second value, wherein the second value is greater than or equal to the first value.

Optionally, the determining unit 620 is configured to: when the area type of the terminal equipment is an intra-area, determining that the HPLMN reselection strategy is a second value of the search period of the HPLMN; and when the area type of the terminal equipment is an overseas area, determining that the HPLMN reselection strategy is to set the search period of the HPLMN to be a third value, wherein the third value is greater than or equal to the second value.

For example, the search period for the overseas area may be set longer than the search period for the indoor area.

The second value may be set in accordance with conventional schemes and the third value may be greater than or equal to the second value. When the terminal device is in the overseas roaming state, because the overseas area has no home network or has very low possibility of having the home network, the search period of the HPLMN can be set to be longer than that of the area in the overseas area, so as to reduce the power consumption of the terminal device and achieve the purpose of saving power.

Optionally, the determining unit 620 is configured to: when the area type of the terminal equipment is the border area, determining that the HPLMN reselection strategy is set to be a first value of a search period of the HPLMN; and when the area type of the terminal equipment is an overseas area, determining that the HPLMN reselection strategy is to set the search period of the HPLMN to be a third value, wherein the third value is greater than or equal to the first value.

For example, the search period for the overseas area may be set longer than the search period for the border area.

In the embodiment of the application, the border area has high possibility of having the home network, and a short HPLMN search period can be set, so that high-frequency and quick search can be performed, and the terminal equipment can return to the home network as soon as possible. The overseas area does not have a home network, and a longer HPLMN search period can be set, so that excessive power consumption can be avoided.

Optionally, the determining unit 620 is configured to: and when the area type of the terminal equipment is the overseas area, determining that the HPLMN reselection strategy is not to execute the search of the HPLMN.

Optionally, the determining unit 620 is configured to: and determining the area type of the terminal equipment according to the position information of the terminal equipment and the corresponding relation between the preset position information and the area type.

Optionally, the location information of the terminal device includes longitude and latitude information and/or cell ID information of the terminal device.

It should be understood that the network reselection apparatus 600 shown in fig. 6 may be configured to perform operations or processes related to the above method embodiments, and operations and/or functions of each unit in the network reselection apparatus 600 are respectively to implement corresponding processes in the above method embodiments, and are not described herein again for brevity.

Fig. 7 is a schematic structural diagram of a network reselection apparatus 700 according to an embodiment of the present application. As shown in fig. 7, the network reselection apparatus includes a processor 710, and the processor 710 may call and execute a computer program from a memory to implement the method in the embodiment of the present application. The network reselection device shown in fig. 7 is only a schematic structural block diagram of an embodiment of the present application, and a specific implementation form of the device may refer to fig. 1, and for simplicity and convenience of description, details are not repeated here.

Optionally, as shown in fig. 7, the terminal device 700 may further include a memory 720. The processor 710 can call and run a computer program from the memory 730 to implement the method in the embodiment of the present application.

The memory 720 may be a separate device from the processor 710, or may be integrated into the processor 710.

Optionally, as shown in fig. 7, the network reselection apparatus 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices, for example, may transmit information or data to the other devices, or receive information or data transmitted by the other devices.

The transceiver 730 may include a transmitter and a receiver, among others. The transceiver 730 may further include an antenna, and the number of antennas may be one or more.

It should be understood that the network reselection apparatus 700 shown in fig. 7 may be used to perform operations or processes related to the above method embodiments, and the operations and/or functions of the respective units in the network reselection apparatus 700 are respectively to implement the corresponding processes in the above method embodiments, and are not described herein again for brevity.

Fig. 8 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 800 shown in fig. 8 includes a processor 810, and the processor 810 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

The memory 820 may be a separate device from the processor 810 or may be integrated into the processor 810.

Optionally, the chip 800 may further include an input interface 830. The processor 810 can control the input interface 830 to communicate with other devices or chips, for example, to obtain information or data transmitted by other devices or chips.

Optionally, the chip 800 may further include an output interface 840. The processor 810 may control the output interface 840 to communicate with other devices or chips, for example, to output information or data to other devices or chips.

Optionally, the chip may be applied to the terminal device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

The aforementioned processors may be general purpose processors, Digital Signal Processors (DSPs), Field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), or other programmable logic devices, transistor logic devices, discrete hardware components, etc. The general purpose processor mentioned above may be a microprocessor or any conventional processor etc.

The above-mentioned memories may be either volatile or nonvolatile memories, or may include both volatile and nonvolatile memories. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM).

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that in the embodiment of the present application, "B corresponding to (corresponding to) a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the unit is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of network reselection, comprising:

acquiring the position information of the terminal equipment in a roaming state;

determining a local public land mobile network (HPLMN) reselection strategy according to the position information of the terminal equipment, wherein the strategy comprises the following steps: determining the region type of the terminal equipment according to the position information of the terminal equipment, wherein the region type is divided according to a country border line, and the region type comprises at least two of the following regions: domestic, overseas and border areas; determining the HPLMN reselection strategy according to the area type of the terminal equipment; the HPLMN reselection policy comprises at least one of: whether to execute the search of the HPLMN, whether to execute the registration of the HPLMN, and a search period adopted when the search of the HPLMN is executed;

executing the HPLMN reselection policy;

wherein the determining the HPLMN reselection policy according to the area type of the terminal device includes: when the area type of the terminal equipment is the border area, determining that the HPLMN reselection strategy is set to be a first value of a search period of the HPLMN; when the area type of the terminal equipment is the domestic area, determining that the HPLMN reselection strategy is set to be a second value of the search period of the HPLMN, wherein the second value is larger than the first value.

2. The method of claim 1, wherein the determining the HPLMN reselection policy based on the area type of the terminal device comprises:

and when the area type of the terminal equipment is the border area, determining that the HPLMN reselection strategy is to execute the search of the HPLMN, and executing the registration of the HPLMN under the condition that the HPLMN is searched.

3. The method of claim 1 or 2, wherein the determining the HPLMN reselection policy according to the area type of the terminal device further comprises:

and when the area type of the terminal equipment is the overseas area, determining that the HPLMN reselection strategy is to set the search period of the HPLMN to be a third value, wherein the third value is larger than the second value.

4. The method of claim 1 or 2, wherein the determining the HPLMN reselection policy according to the area type of the terminal device further comprises:

and when the area type of the terminal equipment is the overseas area, determining that the HPLMN reselection strategy is to set the search period of the HPLMN to be a third value, wherein the third value is larger than the first value.

5. The method of claim 1 or 2, wherein the determining the HPLMN reselection policy according to the area type of the terminal device comprises:

and when the area type of the terminal equipment is the overseas area, determining that the HPLMN reselection strategy is not to execute the search of the HPLMN.

6. The method according to claim 1 or 2, wherein the determining the area type of the terminal device according to the location information of the terminal device comprises:

and determining the area type of the terminal equipment according to the position information of the terminal equipment and the corresponding relation between the preset position information and the area type.

7. The method according to claim 1 or 2, characterized in that the location information of the terminal device comprises latitude and longitude information and/or cell Identity (ID) information of the terminal device.

8. An apparatus for network reselection, comprising:

an acquisition unit, configured to acquire location information of a terminal device in a roaming state;

a determining unit, configured to determine a local public land mobile network HPLMN reselection policy according to the location information of the terminal device, where the determining unit includes: determining the region type of the terminal equipment according to the position information of the terminal equipment, wherein the region type is divided according to a country border line, and the region type comprises at least two of the following regions: domestic, overseas and border areas; determining the HPLMN reselection strategy according to the area type of the terminal equipment; the HPLMN reselection policy comprises at least one of: whether to execute the search of the HPLMN, whether to execute the registration of the HPLMN, and a search period adopted when the search of the HPLMN is executed;

an execution unit configured to execute the HPLMN reselection policy;

wherein the determination unit is configured to:

when the area type of the terminal equipment is the border area, determining that the HPLMN reselection strategy is set to be a first value of a search period of the HPLMN;

when the area type of the terminal equipment is the domestic area, determining that the HPLMN reselection strategy is set to be a second value of the search period of the HPLMN, wherein the second value is larger than the first value.

9. The apparatus of claim 8, wherein the determining unit is configured to:

when the area type of the terminal equipment is the border area, determining that the HPLMN reselection strategy is a first HPLMN reselection strategy, wherein the first HPLMN reselection strategy comprises the steps of executing the search of the HPLMN, and executing the search and registration of the HPLMN under the condition that the HPLMN is searched.

10. The apparatus according to claim 8 or 9, wherein the determining unit is configured to:

11. The apparatus according to claim 8 or 9, wherein the determining unit is configured to:

12. The apparatus according to claim 8 or 9, wherein the determining unit is specifically configured to:

13. An apparatus for network reselection, comprising:

a processor for invoking and running a computer program from a memory, the computer program comprising: instructions for performing the method of any of claims 1 to 7.

14. A chip, comprising:

15. A storage medium for storing a computer program, the computer program comprising: instructions for performing the method of any of claims 1 to 7.