CN104853409B - Network access method and mobile communication terminal - Google Patents

Abstract

The invention discloses a network access method, which comprises the following steps: searching a network at a home from a mobile communication terminal from a visited place to the home; and if a home PLMN matched with the network identification in an equivalent public land mobile network EPLMN list is searched in the home, establishing communication connection between the mobile communication terminal and the matched home PLMN, wherein the EPLMN list comprises the network identification of the home PLMN and the network identification of the visited PLMN, and the network identification of the home PLMN is the network identification of the PLMN of the home operator which has signed a roaming agreement with the visited operator. The invention adopts the visiting place public land mobile network mark and the attribution place public land mobile network mark of the mobile communication terminal in the equivalent public land mobile network list, and carries out network search by the mode of the attribution place public land mobile network, thereby effectively saving the time for searching the network and improving the network searching efficiency.

Description

A network access method and mobile communication terminal

technical field

The invention relates to the technical field of mobile communication, in particular to a network access method and a mobile communication terminal.

Background technique

Public Land Mobile Network (PLMN) is a network established and operated by the government or its approved operators to provide land mobile communication services for the public. The network must be interconnected with the Public Switched Telephone Network (PSTN) to form a regional or national-scale communication network.

The identification of the public land mobile network is usually a series of digital codes. For example, the network identification of China Mobile's PLMN is 46000, and the network identification of China Unicom's PLMN is 46001. Users can communicate conveniently and quickly through the mobile networks provided by various operators. . With the improvement of people's living standards, more and more users carry communication mobile communication terminal equipment abroad for travel or business trips. When users roam in different countries or regions, their mobile communication terminals need to re-search the network to obtain Network ID of the current public land mobile network.

When the mobile communication terminal returns to the home country from the place of visit (for example, the mobile communication terminal returns to the home country from the roaming country), the mobile communication terminal needs to access the public land mobile network PLMN of the home country. However, the current situation that often occurs is When a mobile communication terminal moves from a visiting place to a home place, it often takes a long time (sometimes it may even need to wait for more than tens of minutes) before the mobile communication terminal can successfully access the public land mobile network of the current visiting place. affect the user communication experience.

Contents of the invention

The technical problem to be solved by the embodiments of the present invention is to provide a network access method and a mobile communication terminal. The local public land mobile network HPLMN writes the list of equivalent public land mobile network EPLMN. When the registered public land mobile network RPLMN is used to search the network at the visited location, because the searched RPLMN is equivalent to the HPLMN, the mobile communication terminal can camp in the cell and try to initiate the search network registration process, which can reduce the number of mobile communications The search duration during the terminal search for the network.

The first aspect of the embodiment of the present invention discloses a network access method, including:

The mobile communication terminal from the visited place to the home place searches for the network at the home place;

If a home PLMN matching the network identifier in the equivalent public land mobile network EPLMN list is found in the home location, establish a communication connection between the mobile communication terminal and the matching home PLMN, wherein , the EPLMN list includes the network identifier of the home PLMN and the network identifier of the visited PLMN, the network identifier of the home PLMN is the network identifier of the PLMN of the home operator that has signed a roaming agreement with the visited operator ;

The second aspect of the embodiment of the present invention discloses a mobile communication terminal, including:

A search module, used for the mobile communication terminal from the visited place to the home place to search for the network at the home place;

A networking module, configured to establish a connection between the mobile communication terminal and the matching home PLMN if a home PLMN matching the network identifier in the equivalent public land mobile network EPLMN list is found in the home location. The communication connection between, wherein, the EPLMN list includes the network identifier of the home PLMN and the network identifier of the visited PLMN, and the network identifier of the home PLMN is the home operator that has signed a roaming agreement with the visited operator. The network identifier of the provider's PLMN.

In the technical solution of the embodiment of the present invention, not only the network identifier of the PLMN where the mobile communication terminal is visiting is added to the list of equivalent public land mobile networks EPLMN, but also the obtained roaming contract with the operator of the PLMN where the mobile communication terminal is visiting The network identification of the home PLMN of the agreement is also added to the EPLMN list, wherein, the PLMNs that store the network identification in the EPLMN list are regarded as equivalent to a certain extent by the mobile communication terminal, therefore, if according to the EPLMN list For the network access of the mobile communication terminal, since the EPLMN list stores the network identifiers of some home PLMNs that have signed roaming agreements with the operators of the mobile communication terminal’s visited PLMN, when the mobile communication terminal visits from a certain return to the home place, the mobile communication terminal is returning to the home place to perform network search, then the possibility of the network search hitting a certain PLMN with the network identifier stored in the EPLMN list will be greatly improved, therefore, the mobile communication terminal The success rate and speed of accessing the network at the home location may be greatly improved, which is conducive to greatly shortening the waiting time for user communication (in an ideal state, a mobile communication terminal may only need a few seconds to complete network access), and then This is conducive to greatly improving user communication experience.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic flowchart of a network access method provided by an embodiment of the present invention;

FIG. 2 is a schematic flowchart of another network access method provided by an embodiment of the present invention;

FIG. 3 is a schematic flowchart of another network access method provided by an embodiment of the present invention;

FIG. 4a is a schematic structural diagram of a mobile communication terminal provided by an embodiment of the present invention;

FIG. 4b is another schematic structural diagram of a mobile communication terminal provided by an embodiment of the present invention;

FIG. 4c is another schematic structural diagram of a mobile communication terminal provided by an embodiment of the present invention;

Fig. 4d is another schematic structural diagram of a mobile communication terminal provided by an embodiment of the present invention;

FIG. 4e is another schematic structural diagram of a mobile communication terminal provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another mobile communication terminal provided by an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

It should be noted that the terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

The public land mobile network PLMN is a wireless communication system established and operated by the government or its approved operators to provide land mobile communication services for the public. This network is usually interconnected with the public switched telephone network PSTN to form a communication network of the entire region or country. Public land mobile network PLMN includes the following types:

Registered Public Land Mobile Network (Registered PLMN): It is the PLMN registered by the mobile communication terminal before it was shut down or disconnected from the network last time.

Equivalent Public Land Mobile Network (Equivalent PLMN, EPLMN): It is a PLMN at the same status as the PLMN currently selected by the mobile communication terminal, and its priority is the same.

Home Public Land Mobile Network (Home HPLMN, HPLMN): It is the PLMN to which the mobile communication terminal user belongs. It can be identified through a Universal Subscriber Identity Module (USIM) card of a mobile communication terminal, and for a certain user, there is only one PLMN of its home.

Home public land mobile network (Equivalent Home PLMN, EHPLMN): a local PLMN that is at the same status as the PLMN currently selected by the mobile communication terminal.

Visited Public Land Mobile Network (Visited PLMN, VPLMN): A PLMN accessed by mobile communication terminal users. Its PLMN is not exactly the same as the MCC and MNC of the IMSI stored in the SIM card. When the mobile communication terminal loses coverage, a VPLMN will be selected.

Please refer to FIG. 1 , which is a schematic flowchart of a network access method provided by an embodiment of the present invention. The method includes but is not limited to the following steps.

In step S101, a mobile communication terminal from a visited place to a home place searches for a network at the home place.

In a specific implementation, the mobile communication terminal may include a smart phone, a tablet computer or a handheld computer with a communication function, and the like. When the user carries the mobile communication terminal back to the home place from a visiting place, when the mobile communication terminal is turned on for the first time after arriving at the home place, it needs to perform a network search again to connect to the network of the current home place. For example, when a Chinese user returns to China from the United States and turns on the mobile communication terminal for the first time, the mobile communication terminal carried by the Chinese user will search for a network in China for communication connection.

In a specific implementation, the home public land mobile network EHPLMN in this embodiment refers to the home public land mobile network that has the same priority as the visited public land mobile network during network search. The equivalent public land mobile network EPLMN mainly solves the user residency and roaming strategies of the shared network and the original network. Operators can configure EPLMN networks, and these networks can share communication network resources. For example: the network identifier of the public land mobile network PLMN is mainly used to identify the network label of the public land mobile network PLMN. Numbers: 46001, 46006 and 46009, which are equivalent public land mobile networks. When a mobile communication terminal is roaming, it generally searches the registered public land mobile network RPLMN first according to the search rule, and then selects the home public land mobile network EHPLMN/home public land mobile network HPLMN to search. When returning to the home location, the mobile communication terminal cannot judge whether it is currently in the visited location or the home location, so it will continue to search for the visited public land mobile network VPLMN, which wastes a lot of search time. Therefore, in order to quickly obtain effective mobile Network, by adding the mobile communication terminal's visited public land mobile network VPLMN identifier and the home public land mobile network EHPLMN identifier to the list of equivalent public land mobile networks, wherein the home public land mobile network HPLMN has been added to the etc. list of active public land mobile networks for quick network searches. The equivalent public land mobile network EPLMN list is used to store the identification information of the home public land mobile network HPLMN, the home public land mobile network EHPLMN and the visited public land mobile network VPLMN, according to the network identification in the equivalent public land mobile network EPLMN list , the mobile communication terminal sends a broadcast search network instruction corresponding to the network identifier, and judges whether a suitable cell is captured according to the obtained broadcast message in the broadcast channel, and captures the public land mobile network that can be captured during the cell search process. The network PLMN returns to the mobile communication terminal to determine the searchable public land mobile network PLMN.

Step S102, if a home PLMN that matches the network identifier in the equivalent public land mobile network EPLMN list is found in the home location, establish communication between the mobile communication terminal and the matching home PLMN connection, wherein the EPLMN list includes the network identifier of the home PLMN and the network identifier of the visited PLMN, and the network identifier of the home PLMN is the PLMN of the home operator that has signed a roaming agreement with the visited operator network ID.

In a specific implementation, if the mobile communication terminal searches for a home PLMN that matches the network identifier in the equivalent public land mobile network EPLMN list at the home, establish a communication connection between the mobile communication terminal and the matching home PLMN, Wherein, the EPLMN list includes the network identifier of the home PLMN and the network identifier of the visited PLMN, and the network identifier of the home PLMN is the network identifier of the PLMN of the home operator that has signed a roaming agreement with the visited operator. In some feasible implementation manners, the visited place and the home place belong to different countries or different administrative regions.

In the embodiment of the present invention, the mobile communication terminal from the visited place to the home place searches for a network at the home place; if a home PLMN matching the network identifier in the equivalent public land mobile network EPLMN list is found at the home place, Establishing a communication connection between the mobile communication terminal and the matching home PLMN, wherein the EPLMN list includes the network identifier of the home PLMN and the network identifier of the visited PLMN, and the network identifier of the home PLMN It is the network identifier of the PLMN of the home operator that has signed a roaming agreement with the visited operator. The present invention uses the visited public land mobile network identifier and the belonging public land mobile network identifier of the mobile communication terminal in the list of equivalent public land mobile networks, and searches the network through the belonging public land mobile network, effectively saving The time of searching the network is reduced, and the efficiency of searching the network is improved.

Please refer to FIG. 2 , which is a schematic flowchart of another network access method provided by an embodiment of the present invention. The method includes but is not limited to the following steps.

Step S201, adding the network identifier of the home PLMN to the EPLMN list.

In a specific implementation, the mobile communication terminal may add the network identifier of the home PLMN to the EPLMN list.

As a possible implementation manner, before the mobile communication terminal adds the network identifier of the home PLMN to the EPLMN list, the mobile communication terminal may add the network identifier of the home PLMN to the EPLMN list. Further, before the mobile communication terminal adds the network identifier of the home PLMN to the EPLMN list, the mobile communication terminal may obtain the network identifier of the home PLMN through a wired network and/or a wireless network. Further, before the mobile communication terminal adds the network identifier of the home PLMN to the EPLMN list, the mobile communication terminal may obtain the network identifier of the home PLMN through the order information. Further, before adding the network identifier of the home PLMN to the EPLMN list, the mobile communication terminal receives the network identifier of the home PLMN input by the user.

Specifically, the identity of the home public land mobile network EHPLMN includes a network identity corresponding to at least one equivalent public land mobile network HPLMN equivalent to the home public land mobile network HPLMN.

In this embodiment, the home public land mobile network EHPLMN refers to the home public land mobile network that has the same priority as the visited public land mobile network during network search. The equivalent public land mobile network EPLMN mainly solves the user residency and roaming strategies of the shared network and the original network. Operators can configure EPLMN networks, and these networks can share communication network resources.

In the embodiment of the present invention, the network identification may include a network number segment. For example, China Mobile includes four number segments, respectively 46000, 46002, 46007, and 46008; China Unicom includes three number segments, respectively 46001, 46006, and 46009. The network list may include the pre-added network identification of the HPLMN home public land mobile network and the network identification of the VPLMN visited public land mobile network; or, the network list may include the pre-added EHPLMN home public land mobile network. The network identifier of the land mobile network and the network identifier of the public land mobile network where the VPLMN visits; or the network list may contain the pre-added network identifier of the HPLMN home public land mobile network, the network of the EHPLMN home public land mobile network ID and the network ID of the VPLMN visited public land mobile network. The network identifier of the pre-added VPLMN visited public land mobile network is equivalent to the RPLMN registered on the terminal before shutting down or going off-line last time, and its priority is the same.

When a mobile communication terminal is roaming, it generally searches the registered public land mobile network RPLMN first according to the search rule, and then selects the home public land mobile network EHPLMN/home public land mobile network HPLMN to search. When returning to the home location, the mobile communication terminal cannot judge whether it is currently in the visited location or the home location, so it will continue to search for the visited public land mobile network VPLMN, which wastes a lot of search time. Therefore, in order to quickly obtain effective mobile Network, by adding the mobile communication terminal's visited public land mobile network VPLMN identifier and the home public land mobile network EHPLMN identifier to the list of equivalent public land mobile networks, wherein the home public land mobile network HPLMN has been added to the etc. list of active public land mobile networks for quick network searches.

In the specific implementation, according to the equivalent public land mobile network EPLMN list, after the mobile communication terminal sends a broadcast search network command, it receives a broadcast message corresponding to the equivalent public land mobile network EPLMN list, and performs a network search operation, wherein, the equivalent public land mobile network The land mobile network EPLMN list is used to store the identification information of the home public land mobile network HPLMN, the home public land mobile network EHPLMN and the visited public land mobile network VPLMN. According to the network identification in the equivalent public land mobile network EPLMN list, through mobile The communication terminal sends a broadcast search network instruction corresponding to the network identifier, obtains a broadcast feedback message matching any network identifier in the broadcast channel, and selects a public land mobile network PLMN corresponding to the network identifier according to the feedback message.

In the specific implementation, when searching for any network in the equivalent public land mobile network EPLMN list, select a cell to reside in, and when searching for a public land mobile network PLMN, obtain the information belonging to the public land mobile network PLMN According to the public land mobile network PLMN information, if the home PLMN matching the network identifier in the equivalent public land mobile network EPLMN list is found in the home area, establish a link between the mobile communication terminal and the matching home PLMN Communication connection between. Any one of the networks includes any equivalent public land mobile network EPLMN among the visiting public land mobile network VPLMN and the home public land mobile network EHPLMN of the mobile communication terminal in the list.

Step S202, the mobile communication terminal from the visited place to the home place searches for a network at the home place.

Wherein, for a specific description of step S202, refer to step S101 of the network access method according to the embodiment of the present invention described in FIG. 1 .

Step S203: If a home PLMN matching the network identifier in the equivalent public land mobile network EPLMN list is found in the home location, establish communication between the mobile communication terminal and the matching home PLMN connection, wherein the EPLMN list includes the network identifier of the home PLMN and the network identifier of the visited PLMN, and the network identifier of the home PLMN is the PLMN of the home operator that has signed a roaming agreement with the visited operator network ID.

Wherein, for a specific description of step S203, refer to step S102 of the network access method according to the embodiment of the present invention described in FIG. 1 .

In the embodiment of the present invention, the mobile communication terminal from the visited place to the home place searches for a network at the home place; if a home PLMN matching the network identifier in the equivalent public land mobile network EPLMN list is found at the home place, Establishing a communication connection between the mobile communication terminal and the matching home PLMN, wherein the EPLMN list includes the network identifier of the home PLMN and the network identifier of the visited PLMN, and the network identifier of the home PLMN It is the network identifier of the PLMN of the home operator that has signed a roaming agreement with the visited operator. The present invention uses the visited public land mobile network identifier and the belonging public land mobile network identifier of the mobile communication terminal in the list of equivalent public land mobile networks, and searches the network through the belonging public land mobile network, effectively saving The time of searching the network is reduced, and the efficiency of searching the network is improved.

Please refer to FIG. 3 , which is a schematic flowchart of another network access method provided by an embodiment of the present invention. The method includes but is not limited to the following steps.

Step S301, receiving the network identifier of the home PLMN input by the user.

In a specific implementation, the mobile communication terminal may receive the network identifier of the home PLMN input by the user. Further, the mobile communication terminal can obtain the network identifier of the home PLMN through the order information. Further, the mobile communication terminal may obtain the network identifier of the home PLMN through a wired network and/or a wireless network.

Step S302, adding the network identifier of the home PLMN to the EPLMN list.

Step S303, the mobile communication terminal from the visited place to the home place searches for the network at the home place;

Step S304: If a home PLMN matching the network identifier in the equivalent public land mobile network EPLMN list is found in the home location, establish communication between the mobile communication terminal and the matching home PLMN connection, wherein the EPLMN list includes the network identifier of the home PLMN and the network identifier of the visited PLMN, and the network identifier of the home PLMN is the PLMN of the home operator that has signed a roaming agreement with the visited operator network ID.

For the specific implementation process of step S301 to step S304, reference may be made to the network access method described in the embodiment of the present invention in FIG. 1 or FIG. 2 above.

The embodiment of the present invention receives the network identification of the home PLMN input by the user; obtains the network identification of the home PLMN through order information; obtains the network identification of the home PLMN through a wired network and/or a wireless network; Add the network identification of the home PLMN in the above EPLMN list; the mobile communication terminal from the visited place to the home searches for the network at the home; The home PLMN that matches the network identifier of the mobile communication terminal, and establishes a communication connection between the mobile communication terminal and the matching home PLMN, wherein the EPLMN list includes the network identifier of the home PLMN and the network of the visited PLMN An identifier, where the network identifier of the home PLMN is the network identifier of the PLMN of the home operator that has signed a roaming agreement with the visited operator. The present invention uses the visited public land mobile network identifier and the belonging public land mobile network identifier of the mobile communication terminal in the list of equivalent public land mobile networks, and searches the network through the belonging public land mobile network, effectively saving The time of searching the network is reduced, and the efficiency of searching the network is improved.

Please refer to FIG. 4 a , which is a schematic structural diagram of a mobile communication terminal provided by an embodiment of the present invention. The mobile communication terminal includes a column search module 401 and a network connection module 402 .

The search module 401 is used for the mobile communication terminal from the visited place to the home place to search for a network in the home place.

In a specific implementation, the mobile communication terminal may include a smart phone, a tablet computer or a handheld computer with a communication function, and the like. When the user returns to the home place from a visiting place with a mobile communication terminal, when the mobile communication terminal is turned on for the first time after arriving at the home place, the search module 401 needs to perform a network search again, so that the network connection module 402 can connect to the network of the current home place . For example, when a Chinese user returns to China from the United States and turns on the mobile communication terminal for the first time, the mobile communication terminal carried by the Chinese user will search for a network in China for communication connection. The search module 401 can be used for a mobile communication terminal from a visiting place to a home place to search for a network at the home place.

In a specific implementation, the home public land mobile network EHPLMN in this embodiment refers to the home public land mobile network that has the same priority as the visited public land mobile network during network search. The equivalent public land mobile network EPLMN mainly solves the user residency and roaming strategies of the shared network and the original network. Operators can configure EPLMN networks, and these networks can share communication network resources. The public land mobile network PLMN identification is mainly used to identify the network label of the public land mobile network PLMN. For example, the operator China Mobile has 4 network numbers, namely: 46000, 46002, 46007 and 46008. China Unicom has three network numbers: 46001, 46006 and 46009, which are equivalent public land mobile networks. When a mobile communication terminal is roaming, generally according to the search rule, the search module 401 first searches the registered public land mobile network RPLMN, and then selects the home public land mobile network EHPLMN/home public land mobile network HPLMN to search, when When returning from the visited place to the home place, the mobile communication terminal cannot judge whether it is currently in the visited place or the home place, so it will continue to search for the public land mobile network VPLMN of the visited place, which wastes a lot of search time. Therefore, in order to quickly obtain To a valid mobile network, add the mobile communication terminal's visited public land mobile network VPLMN ID and home public land mobile network EHPLMN ID to the list of equivalent public land mobile networks, where the home public land mobile network HPLMN has Added to the list of equivalent public land mobile networks for fast network searches. The equivalent public land mobile network EPLMN list is used to store the identification information of the home public land mobile network HPLMN, the home public land mobile network EHPLMN and the visited public land mobile network VPLMN, according to the network identification in the equivalent public land mobile network EPLMN list , the mobile communication terminal sends a broadcast search network instruction corresponding to the network identifier, and judges whether a suitable cell is captured according to the obtained broadcast message in the broadcast channel, and captures the public land mobile network that can be captured during the cell search process. The network PLMN returns to the mobile communication terminal to determine the searchable public land mobile network PLMN.

The networking module 402 is configured to, if a home PLMN matching the network identifier in the equivalent public land mobile network EPLMN list is found in the home location, establish the matching home PLMN between the mobile communication terminal and the matching home PLMN The communication connection between, wherein, the EPLMN list includes the network identifier of the home PLMN and the network identifier of the visited PLMN, and the network identifier of the home PLMN is the home that signed a roaming agreement with the operator of the visited place The network identifier of the operator's PLMN.

In a specific implementation, if the search module 401 searches for a home PLMN that matches the network identifier in the equivalent public land mobile network EPLMN list, the networking module 402 establishes a connection between the mobile communication terminal and the matching home PLMN. communication connection, wherein the EPLMN list includes the network identifier of the home PLMN and the network identifier of the visited PLMN, and the network identifier of the home PLMN is the network identifier of the PLMN of the home operator that has signed a roaming agreement with the visited operator. In some feasible implementation manners, the visited place and the home place belong to different countries or different administrative regions.

Specifically, when the search module 401 finds any network that matches the equivalent public land mobile network list, determine the searchable public land mobile network EPLMN, and this network is the home of the mobile communication terminal in the list When any one of the public land mobile network HPLMN, the home public land mobile network EHPLMN and the visited public land mobile network VPLMN is equivalent to any one of the public land mobile network EPLMN, establish the communication between the mobile communication terminal and the matching home PLMN connect. For example, when the obtained public land mobile network PLMN is 46001, which belongs to China Unicom, a communication connection between the mobile communication terminal and China Unicom may be established.

As a possible implementation manner, as shown in FIG. 4 b , the mobile communication terminal described in the embodiment of the present invention may further include: an adding module 403 .

The adding module 403 is configured to add the network identifier of the home PLMN to the EPLMN list before the mobile communication terminal moving from the visited place to the home place by the search module 401 searches for a network in the home place.

Further, as a possible implementation manner, as shown in FIG. 4 c , the mobile communication terminal described in this embodiment of the present invention may further include: a first obtaining module 404 .

The first acquiring module 404 is configured to acquire the network identifier of the home PLMN through a wired network and/or a wireless network before the adding module 403 adds the network identifier of the home PLMN to the EPLMN list.

Further, as a possible implementation manner, as shown in FIG. 4d , the mobile communication terminal described in the embodiment of the present invention may further include: a second acquiring module 405 .

The second acquiring module 405 is configured to acquire the network identifier of the home PLMN through order information before the adding module 403 adds the network identifier of the home PLMN to the EPLMN list.

As a possible implementation manner, as shown in FIG. 4e , the mobile communication terminal described in this embodiment of the present invention may further include: a third acquiring module 406 .

The third acquiring module 406 is configured to receive the network identifier of the home PLMN input by the user before the adding module 403 adds the network identifier of the home PLMN to the EPLMN list.

In the embodiment of the present invention, the search module 401 is used for mobile communication terminals from the visited place to the home place to search for networks in the home place; the networking module 402 is used for searching for equivalent public land mobile networks in the home place The home PLMN that matches the network identifier in the EPLMN list, and establishes a communication connection between the mobile communication terminal and the matched home PLMN, wherein the EPLMN list includes the network identifier of the home PLMN and the visited location The network identifier of the PLMN, where the network identifier of the home PLMN is the network identifier of the PLMN of the home operator that has signed a roaming agreement with the visited operator. The present invention uses the visited public land mobile network identifier and the belonging public land mobile network identifier of the mobile communication terminal in the list of equivalent public land mobile networks, and searches the network through the belonging public land mobile network, effectively saving The time of searching the network is reduced, and the efficiency of searching the network is improved.

Referring to FIG. 5 , FIG. 5 is a schematic structural diagram of a second embodiment of a mobile communication terminal provided by an embodiment of the present invention. The mobile communication terminal described in this embodiment includes: at least one input device 1000; at least one output device 2000; at least one processor 3000, such as a CPU; and a memory 4000, the input device 1000, output device 2000, processor 3000 and The memory 4000 is connected via a bus 5000 .

Wherein, the above-mentioned input device 1000 may be a touch panel, a common PC, a liquid crystal screen, a touch screen, and the like.

The above-mentioned memory 4000 may be a high-speed RAM memory, or a non-volatile memory (non-volatile memory), such as a magnetic disk memory. The above-mentioned memory 4000 is used to store a set of program codes, and the above-mentioned input device 1000, output device 2000 and processor 3000 are used to call the program codes stored in the memory 4000, and perform the following operations:

The above-mentioned processor 3000 is used for the mobile communication terminal from the visited place to the home place to search for a network in the home place.

In a specific implementation, the mobile communication terminal may include a smart phone, a tablet computer or a handheld computer with a communication function, and the like. When the user carries the mobile communication terminal back to the home place from a visiting place, when the mobile communication terminal is turned on for the first time after arriving at the home place, it needs to perform a network search again to connect to the network of the current home place. For example, when a Chinese user returns to China from the United States and turns on the mobile communication terminal for the first time, the mobile communication terminal carried by the Chinese user will search for a network in China for communication connection.

In a specific implementation, the home public land mobile network EHPLMN in this embodiment refers to the home public land mobile network that has the same priority as the visited public land mobile network during network search. The equivalent public land mobile network EPLMN mainly solves the user residency and roaming strategies of the shared network and the original network. Operators can configure EPLMN networks, and these networks can share communication network resources. The public land mobile network PLMN identification is mainly used to identify the network label of the public land mobile network PLMN. For example, the operator China Mobile has 4 network numbers, namely: 46000, 46002, 46007 and 46008. China Unicom has three network numbers: 46001, 46006 and 46009, which are equivalent public land mobile networks. When a mobile communication terminal is roaming, it generally searches the registered public land mobile network RPLMN first according to the search rule, and then selects the home public land mobile network EHPLMN/home public land mobile network HPLMN to search. When returning to the home location, the mobile communication terminal cannot judge whether it is currently in the visited location or the home location, so it will continue to search for the visited public land mobile network VPLMN, which wastes a lot of search time. Therefore, in order to quickly obtain effective mobile Network, by adding the mobile communication terminal's visited public land mobile network VPLMN identifier and the home public land mobile network EHPLMN identifier to the list of equivalent public land mobile networks, wherein the home public land mobile network HPLMN has been added to the etc. list of active public land mobile networks for quick network searches. The equivalent public land mobile network EPLMN list is used to store the identification information of the home public land mobile network HPLMN, the home public land mobile network EHPLMN and the visited public land mobile network VPLMN, according to the network identification in the equivalent public land mobile network EPLMN list , the mobile communication terminal sends a broadcast search network instruction corresponding to the network identifier, and judges whether a suitable cell is captured according to the obtained broadcast message in the broadcast channel, and captures the public land mobile network that can be captured during the cell search process. The network PLMN returns to the mobile communication terminal to determine the searchable public land mobile network PLMN.

The above-mentioned processor 3000 is also specifically used for:

If a home PLMN matching the network identifier in the equivalent public land mobile network EPLMN list is found in the home location, establish a communication connection between the mobile communication terminal and the matching home PLMN, wherein , the EPLMN list includes the network identifier of the home PLMN and the network identifier of the visited PLMN, the network identifier of the home PLMN is the network identifier of the PLMN of the home operator that has signed a roaming agreement with the visited operator .

As a possible implementation manner, the network identifier of the home PLMN is equivalent to the network identifier of the registered public land mobile network RPLMN that the mobile communication terminal searches preferentially.

As a possible implementation manner, the EPLMN list further includes a network identifier of the home PLMN and/or an equivalent visited PLMN network identifier.

In some feasible implementation manners, the above-mentioned processor 3000 is further specifically configured to: add the home PLMN to the EPLMN list before the mobile communication terminal moving from the visited place to the home place searches for a network in the home place network ID.

In some feasible implementation manners, the above-mentioned processor 3000 is further specifically configured to: before adding the network identifier of the home PLMN to the EPLMN list, obtain the network identifier of the home PLMN through a wired network and/or a wireless network Network ID.

In some feasible implementation manners, the above-mentioned processor 3000 is further specifically configured to:

Before adding the network identifier of the home PLMN to the EPLMN list, acquire the network identifier of the home PLMN through order information.

In some feasible implementation manners, the above-mentioned processor 3000 is further specifically configured to:

Before adding the network identifier of the home PLMN to the EPLMN list, receiving the network identifier of the home PLMN input by the user.

As a possible implementation manner, the visited place and the home place belong to different countries or different administrative regions.

In a specific implementation, the input device 1000, the output device 2000, and the processor 3000 described in the embodiment of the present invention can execute the network access method described in each embodiment of Figures 1 to 3 provided in the embodiment of the present invention The described implementation manner can also execute the implementation manner of the mobile communication terminal described in the first embodiment of the mobile communication terminal described in FIGS.

It should be noted that for the foregoing method embodiments, for the sake of simple description, they are expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. Because according to the present invention, certain steps may be performed in other order or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

Through the above description of the implementation manners, those skilled in the art can clearly understand that the present invention can be implemented by hardware, firmware, or a combination thereof. When implemented in software, the functions described above may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. Take this as an example but not limited to: computer-readable media may include Random Access Memory (Random Access Memory, RAM), Read-Only Memory (Read-Only Memory, ROM), Electrically Erasable Programmable Read-Only Memory (Electrically Erasable Programmable Read -Only Memory, EEPROM), CD-ROM (Compact Disc Read-Only Memory, CD-ROM) or other optical disk storage, magnetic disk storage medium or other magnetic storage devices, or can be used to carry or store information in the form of instructions or data structures desired program code and any other medium that can be accessed by a computer. also. Any connection can suitably be a computer-readable medium. For example, if the Software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, Coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, wireless and microwave are then included in the fixation of the associated medium. As used herein, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disc, and Blu-ray disc, where discs usually reproduce data magnetically, and discs Lasers are used to optically reproduce the data. Combinations of the above should also be included within the scope of computer-readable media.

In a word, the above descriptions are only preferred embodiments of the technical solutions of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (12)

1. A network access method, characterized in that, comprising: Obtain the network identification of the PLMN at the place of origin through the order information; Adding the network identifier of the home PLMN to the equivalent public land mobile network EPLMN list; The mobile communication terminal from the visited place to the home place searches the home place PLMN and the visited place PLMN synchronously at the home place; If a home PLMN matching the network identifier in the equivalent public land mobile network EPLMN list is found in the home location, establish a communication connection between the mobile communication terminal and the matching home PLMN, wherein , the EPLMN list includes the network identifier of the home PLMN and the network identifier of the visited PLMN, the network identifier of the home PLMN is the network identifier of the PLMN of the home operator that has signed a roaming agreement with the visited operator , the home PLMN refers to the home PLMN that has the same priority as the visited PLMN during network search. 2. The method according to claim 1, wherein the network identifier of the home PLMN is equivalent to the network identifier of the registered public land mobile network RPLMN that the mobile communication terminal searches preferentially. 3. The method according to claim 1, wherein the EPLMN list further includes the network identifier of the home PLMN and/or the equivalent visited PLMN network identifier. 4. The method according to any one of claims 1-3, wherein before adding the network identifier of the home PLMN to the EPLMN list, further comprising: via a wired network and/or a wireless network Obtain the network identifier of the home PLMN. 5. The method according to any one of claims 1-3, characterized in that before adding the network identifier of the home PLMN to the EPLMN list, further comprising: receiving the home PLMN input by the user The network identifier of the PLMN. 6. The method according to claim 1, wherein the visited place and the home belong to different countries or different administrative regions. 7. A mobile communication terminal, characterized in that it comprises: The second obtaining module is used to obtain the network identification of the home PLMN through the order information; An adding module, configured to add the network identifier of the home PLMN to the equivalent public land mobile network EPLMN list; The search module is used for the mobile communication terminal from the visited place to the home place to search the home place PLMN and the visited place PLMN synchronously at the home place; A networking module, configured to establish a connection between the mobile communication terminal and the matching home PLMN if a home PLMN matching the network identifier in the equivalent public land mobile network EPLMN list is found in the home location. The communication connection between, wherein, the EPLMN list includes the network identifier of the home PLMN and the network identifier of the visited PLMN, and the network identifier of the home PLMN is the home operator that has signed a roaming agreement with the visited operator. The network identifier of the provider's PLMN, the home PLMN refers to the home PLMN that has the same priority as the visited PLMN during network search. 8. The mobile communication terminal according to claim 7, wherein the network identification of the home PLMN is equivalent to the network identification of the registered public land mobile network RPLMN that the mobile communication terminal searches preferentially. 9. The mobile communication terminal according to claim 7, wherein the EPLMN list further includes a network identifier of a home PLMN and/or a network identifier of an equivalent visited PLMN. 10. The mobile communication terminal according to any one of claims 7-9, wherein the mobile communication terminal further comprises: The first obtaining module is configured to obtain the network identifier of the home PLMN through a wired network and/or a wireless network before the adding module adds the network identifier of the home PLMN to the EPLMN list. 11. The mobile communication terminal according to any one of claims 7-9, wherein the mobile communication terminal further comprises: The third acquiring module is configured to receive the network identifier of the home PLMN input by the user before the adding module adds the network identifier of the home PLMN to the EPLMN list. 12. The mobile communication terminal according to claim 7, wherein the visited place and the home place belong to different countries or different administrative regions.