CN113573302B - Network selection system of multi-SIM mobile equipment - Google Patents
Network selection system of multi-SIM mobile equipment Download PDFInfo
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- CN113573302B CN113573302B CN202111125754.6A CN202111125754A CN113573302B CN 113573302 B CN113573302 B CN 113573302B CN 202111125754 A CN202111125754 A CN 202111125754A CN 113573302 B CN113573302 B CN 113573302B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/183—Processing at user equipment or user record carrier
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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Abstract
The invention discloses a network selection system of multi-SIM mobile equipment. The method helps to realize that the multi-SIM device selects the most appropriate IMSI according to the current geographical location information, helps to immediately help the multi-SIM device to obtain a certain IMSI home network, helps to select the IMSI with the lowest cost and a roaming network thereof under the condition that each IMSI home network cannot be obtained, can select the IMSI and select the unique roaming network under the condition that only one IMSI and only one roaming network exist, provides service for a user, and can trigger the Beidou short message to send the geographical location information to the home gateway of the device under the condition that all IMSIs and the current PLMN in the device do not have roaming relation or all PLMNs exist in the FPLMN list of each IMSI at present, the home gateway returns new IMSIs to the multi-SIM device through the Beidou short message, and the network selection function module can initiate registration to a target network by using the latest obtained IMSI, normal service is obtained.
Description
Technical Field
The invention relates to the technical field of satellite positioning, in particular to a network selection system of multi-SIM mobile equipment.
Background
A multi-IMSI SIM, typically supports multiple IMSIs, one or more home PLMNs per IMSI. Conventionally, when the device is turned on, the last used IMSI is used to search whether the RPLMN can be found in the current location, or all other searched PLMNs and MCCs/MNCs thereof, and the PLMN is selected and registered in the order of RPLMN/EPLMN/HPLMN/EHPLMN/UPLMN/OPLMN/APLMN, and the PLMN queries the HLR of the IMSI home location to acquire the home or roaming state of the IMSI, thereby completing the service authorization of the IMSI in the home or roaming PLMN, and the device can normally obtain service.
Making a new registration PLMN for a Registered PLMN: the PLMN is registered. The PLMN is registered before the terminal is powered off or disconnected last time;
the EPLMN (Equivalent PLMN): the PLMN which is the same as the PLMN currently selected by the terminal is the PLMN with the same priority;
-EHPLMN (equivalent local PLMN to EquivalentHome PLMN): the local PLMN which is in the same position as the PLMN currently selected by the terminal is selected;
fourth HPLMN (Home PLMN): a PLMN to which the terminal user belongs;
fifthly, VPLMN (Visited PLMN of Visited PLMN): a PLMN to be accessed by an end user;
sixthly, UPLMN (User Controlled PLMN User control PLMN): is a parameter related to PLMN selection stored on the USIM card;
keep-alive OPLMN (Operator Controlled PLMN): is a parameter related to PLMN selection stored on the USIM card;
and FPLMN (Forbidden PLMN): for a PLMN that is prohibited from accessing, the terminal will generally add it to the list after attempting to access a certain PLMN is denied;
full-skin APLMN (apparent PLMN capturable PLMN): a PLMN on which the terminal can find at least one cell and from which PLMN identification information can be read;
in the conventional implementation, after the device is usually turned on, the device preferentially searches for the RPLMN by using the IMSI used before, and then selects the PLMN and initiates registration in the order of RPLMN/EPLMN/HPLMN/EHPLMN/UPLMN/OPLMN/APLMN. In the process, due to the relationship between the position of the mobile phone and the propagation of the wireless signal, the following situations may occur:
(1): the currently used IMSI and the searched network have no roaming relation and cannot complete network registration and obtain service, and the equipment has other IMSI and the currently searched network having roaming relation and can register and obtain normal network service.
(2): the currently used IMSI and the searched network have roaming relation, can be normally registered and can obtain normal service, and roaming charge is high, while the equipment has other IMSI and the network obtained by current search has home relation, can be registered and can obtain normal network service, and local charge is low.
(3): the MCC/MNC searched currently exists only in the forbidden plmn (fplmn) of the IMSI currently used, and cannot complete registration to obtain normal network service, and other IMSIs exist in the device and the network obtained by current search has a roaming relationship, so that normal network service can be registered and obtained.
Therefore, how to intelligently select a better IMSI network for a multi-SIM mobile device is an urgent problem to be solved.
Disclosure of Invention
In view of this, the present invention provides a network selection system for a multi-SIM mobile device, which can implement intelligent IMSI selection for an IMSI device.
In order to achieve the purpose, the technical scheme of the invention is as follows: a network selection system of multi-SIM mobile equipment is arranged in the multi-SIM mobile equipment and comprises a Beidou module and a network selection function module; the method specifically comprises the following steps:
the Beidou module is used for acquiring current geographical position information of the mobile equipment;
the network selection function module executes the following processes:
s1, inquiring a geographic position and mobile network number PLMN (public land Mobile network) relational database stored in the mobile equipment according to the current geographic position information acquired from the Beidou module, acquiring the PLMN existing at the current geographic position, marking as a candidate PLMN, and forming a candidate PLMN list;
s2, reading the identification code IMSI information of all the SIM cards in the equipment, and recording as the equipment IMSI;
s3, inquiring the equipment IMSI and PLMN home/roaming relation database, obtaining a home/roaming relation priority list of each equipment IMSI and candidate PLMN, selecting one equipment IMSI, starting up, completing network search and registering;
if the IMSI of each device does not have a roaming relation with each candidate PLMN of the current position, or each candidate PLMN of the current geographic position exists in a FPLMN list of the mobile network limited by the IMSI of each device, the Beidou module is started by the network selection function module;
s4, the network selection function module sends the geographical location information to the device attribution gateway;
the equipment home gateway returns a new IMSI supporting the position roaming function to the equipment through the Beidou short message;
s5, selecting new IMSI by network selection function module to complete network search and register.
Further, querying an equipment IMSI and a PLMN home/roaming relationship database, obtaining a home/roaming relationship priority list of each equipment IMSI and a candidate PLMN, selecting one of the equipment IMSIs, starting up, completing network search and registration, specifically comprising:
if the IMSI of a certain device has an attribution relationship with a certain candidate PLMN at the current geographic position, the IMSI of the device is selected, and the device is started to complete network search and registration.
Further, querying an equipment IMSI and a PLMN home/roaming relationship database, obtaining a home/roaming relationship priority list of each equipment IMSI and a candidate PLMN, selecting one of the equipment IMSIs, starting up, completing network search and registration, specifically comprising:
if the IMSI of each device does not have the home relationship with each candidate PLMN at the current position, but the roaming charge of a certain device IMSI and a certain candidate PLMN at the current geographical position is lower than a set threshold value, the device IMSI is selected, and the device is started to complete network search and registration.
Inquiring an equipment IMSI and a PLMN attribution/roaming relation database, obtaining an attribution/roaming relation priority list of each equipment IMSI and a candidate PLMN, selecting one equipment IMSI, starting up, completing network search and registering, and specifically comprising the following steps:
if only a roaming relation exists between the IMSI of a certain device and a candidate PLMN in the current geographic position, the IMSI of the device is selected, and the device is started to complete network search and registration.
Further, in S3, the method further includes, if each candidate PLMN in the current geographic location exists in the FPLMN list of the restricted-use mobile networks of each IMSI, starting the beidou module by the network selection function module.
Has the advantages that:
1. the network selection function module realizes intelligent IMSI selection of IMSI equipment by means of 1) Beidou positioning information, 2) a geographic position information and PLMN relation database which are pre-stored in the equipment, 3) an IMSI and PLMN attribution/roaming relation database which are pre-stored in the equipment, 4) Beidou short messages and 5) a network selection algorithm.
2. The network selection system of the multi-SIM mobile equipment can select the IMSI of the home network and the high-quality service of the home network aiming at the multi-SIM equipment at any time; the method is beneficial to the multi-SIM equipment to select the IMSI with the lowest cost and the corresponding low-cost roaming network under the scene that a plurality of roaming networks exist; the method is beneficial to selecting the IMSI supporting roaming before the multi-SIM equipment is started under the condition that no roaming network exists in the currently used IMSI, so that the normal service of the roaming network can be obtained after the multi-SIM equipment is started, the condition that the service cannot be obtained after the multi-SIM equipment is started is avoided, the user experience is improved, and the user satisfaction is increased;
3. according to the network selection system of the multi-SIM mobile equipment, under the premise that roaming relation does not exist between each IMSI and each PLMN at the current position in the multi-SIM equipment or each PLMN at the current position exists in the FPLMN list of each IMSI, the network selection function module starts the Beidou module short message function, selects a new IMSI after obtaining the new IMSI, selects a roaming network after starting up, searches for the network to obtain roaming service, avoids the situation that the network service cannot be obtained for a long time after starting up, or the FPLMN does not start network search, and the user cannot obtain the network service, improves user experience, and increases user satisfaction.
Detailed Description
The present invention will be described in detail with reference to examples.
The network selection function module provided by the invention introduces geographical position information and Beidou short messages, and is realized by the following means and a database: 1. and (5) Beidou positioning information. 2. Geographical location information and a PLMN relationship database pre-stored in the device. 3. IMSI and PLMN home/roaming relationship databases pre-stored in the device. 4. And (5) Beidou short messages. 5. A network selection algorithm.
The method helps to realize that the multi-SIM device selects the most appropriate IMSI according to the current geographical location information, helps to immediately help the multi-SIM device to obtain a certain IMSI home network, helps to select the IMSI with the lowest cost and a roaming network thereof under the condition that each IMSI home network cannot be obtained, can select the IMSI and select the unique roaming network under the condition that only one IMSI and only one roaming network exist, provides service for a user, and can trigger the Beidou short message to send the geographical location information to the home gateway of the device under the condition that all IMSIs and the current PLMN in the device do not have roaming relation or all PLMNs exist in the FPLMN list of each IMSI at present, the home gateway returns new IMSIs to the multi-SIM device through the Beidou short message, and the network selection function module can initiate registration to a target network by using the latest obtained IMSI, normal service is obtained.
Specific examples are as follows:
1) home in china to swelsan via south africa:
a user starting from China inside carries a multi-SIM device user, which contains China Union 130 IMSI and China Union 176 IMSI, and flies to Swiss Lang from south Africa and China inside China.
Old network selection algorithms: in China, the multi-SIM device uses China Union 176 IMSI, and can obtain normal 4G service by continuing to use China Union 176 IMSI after arriving in south Africa. After osweskian from south africa, china unicom 176 IMSI is continuously used, and since china unicom does not have a roaming relationship with a local mobile operator of osweskian, a user cannot obtain normal service.
New network selection function and algorithm: starting from within china, the network selection algorithm selects the china unicom 176 IMSI with a lower tariff. After the south Africa is reached, the network selection algorithm obtains Beidou positioning information, the user is learned to arrive at the south Africa, the IMSI and PLMN home/roaming relation database is inquired, the China Unicom 130 IMSI and China Unicom 176 IMSI do not have the home relation with each PLMN in the south Africa, the China Unicom 130 IMSI and China Unicom 176 IMSI both have the roaming relation with each PLMN in the south Africa, the China Unicom 176 IMSI and the south Africa MTN have the low-cost roaming relation, the network selection algorithm selects the China Unicom 176 IMSI, the system is started, and the target network search and registration are completed;
when the user leaves south Africa and arrives at the Swiss orchid, the network selection algorithm immediately obtains Beidou positioning information, and the fact that the user arrives at the Swiss orchid is known, the fact that the China Unicom 130 IMSI and the China Unicom 176 IMSI do not have the attribution relation with the PLMNs of the Swiss orchid is obtained by inquiring the IMSI and the PLMN attribution/roaming relation database, and the fact that the China Unicom 130 IMSI and the China Unicom 176 IMSI do not have the roaming relation with the local PLMNs. The network selection function module triggers a Beidou short message immediately, sends geographical position information of the Schweiselan to a home gateway of the equipment, the home gateway can distribute the IMSI of Chinese Unicom hongkong supporting the Schweiselan roaming, sends the IMSI to the multi-SIM equipment through the Beidou short message, and the network selection function module selects the IMSI after obtaining the IMSI, starts the machine, searches the network, registers and obtains normal service;
2) starting in China and going to Welai through Singapore:
a user who starts from China internally carries a multi-SIM device user, contains China Unicom IMSI and China Mobile IMSI, and flies to Welan through Singapore from China internally.
Old network selection algorithms: when the user starts from China, the multi-SIM device uses the China Unicom IMSI, and continues to use the China Unicom IMSI after the user arrives at a Singapore, so that the normal 4G service can be obtained. After arriving at the welfare from singapore, China Unicom IMSI is continuously used, China Unicom cost is high, a 4G roaming relation does not exist between China Unicom IMSI and a mobile operator local to the welfare, and user experience is poor due to the fact that 4G does not exist.
New network selection function and algorithm: starting from China, the network selection algorithm selects the China Unicom IMSI with lower cost. After arriving at a singapore, the network selection algorithm obtains Beidou positioning information, knows that a user arrives at the singapore, inquires an IMSI and PLMN attribution/roaming relation database, learns that the China Unicom IMSI and the China Mobile IMSI do not have attribution relation with each PLMN of the singapore, obtains that the China Unicom IMSI and the China Mobile IMSI both have roaming relation with each PLMN of the singapore, obtains a low-cost roaming relation with a local operator, selects the China Unicom IMSI through the network selection algorithm, starts the mobile terminal, and completes target network search and registration.
When a user leaves a singapore and arrives at the Welan, the network selection algorithm immediately obtains Beidou positioning information, so that the user can know that the user arrives at the Welan, the China Unicom IMSI, the China Mobile IMSI and the Welan have no affiliation relationship with each PLMN of the Welan through inquiring the IMSI and PLMN affiliation/roaming relationship database, the China Unicom IMSI, the China Mobile IMSI and each local operator have roaming relationship, the China Mobile IMSI and the local operator have low-cost roaming relationship, the network selection algorithm selects the China Mobile IMSI, and the system is started to complete target network search and registration.
3) Welan starts to go to inland in China via a Singapore:
a user who starts from weli carries a multi-SIM device user, contains weli TELBRU IMSI and chinese union hong kong IMSI, and flies to china from weli through singapore.
Old network selection algorithms: when starting from the welfare, the multi-SIM device uses the welfare IMSI, and continues to use the welfare IMSI after arriving at the singapore, so that the normal 4G service can be obtained. After arriving in china from singapore, the welfare IMSI is continuously used, which is expensive due to the roaming charges.
New network selection function and algorithm: starting from welfare, the network selection algorithm selects the welfare IMSI with a lower tariff. After arriving at a singapore, the network selection algorithm obtains Beidou positioning information, the fact that a user arrives at the singapore is known, an IMSI and a PLMN home/roaming relation database are inquired, the fact that the Welan IMSI, the China Union hong Kong IMSI and each PLMN of the singapore do not have a home relation is known, the Welan IMSI, the China Union hong Kong IMSI and each PLMN of the singapore have a roaming relation, the Welan IMSI and a local operator have a low-cost roaming relation, the network selection algorithm selects the Welan IMSI, starting up is carried out, target network searching and registering are completed.
When a user leaves a singapore and arrives at a China interior, a network selection algorithm immediately obtains Beidou positioning information, so that the user can know that the user arrives at the China interior, the user inquires an IMSI and a PLMN home/roaming relation database to obtain that the Welan IMSI and the China Union hong Kong IMSI do not have a home relation with each PLMN in the China interior, the Welan IMSI and the China Union hong Kong IMSI both have a roaming relation with a local operator, the China Union hong Kong IMSI and the local operator have a low-cost roaming relation, the network selection algorithm selects the China Union hong Kong IMSI, starts the system, and completes target network search and registration.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A network selection system of multi-SIM mobile equipment is characterized in that the system is arranged in the multi-SIM mobile equipment and comprises a Beidou module and a network selection function module; the method specifically comprises the following steps:
the Beidou module is used for acquiring current geographical position information of the mobile equipment;
the network selection function module executes the following processes:
s1, inquiring a geographic position and mobile network number PLMN (public land Mobile network) relational database stored in the mobile equipment according to the current geographic position information acquired from the Beidou module, acquiring the PLMN existing at the current geographic position, marking as a candidate PLMN, and forming a candidate PLMN list;
s2, reading the identification code IMSI information of all the SIM cards in the equipment, and recording as the equipment IMSI;
s3, inquiring the equipment IMSI and PLMN home/roaming relation database, obtaining a home/roaming relation priority list of each equipment IMSI and candidate PLMN, selecting one equipment IMSI, starting up, completing network search and registering;
if the IMSI of each device does not have a roaming relation with each candidate PLMN of the current position, or each candidate PLMN of the current geographic position exists in a FPLMN list of the mobile network limited by the IMSI of each device, the Beidou module is started by the network selection function module;
s4, the network selection function module sends the geographical location information to the device attribution gateway;
the equipment home gateway returns a new IMSI supporting the position roaming function to the equipment through the Beidou short message;
s5, selecting new IMSI by network selection function module to complete network search and register.
2. The system of claim 1, wherein the querying the device IMSI and PLMN home/roaming relationship database obtains a home/roaming relationship priority list of each device IMSI and candidate PLMN, selects one of the device IMSIs, powers on, completes network search and registration, and specifically includes:
if the IMSI of a certain device has an attribution relationship with a certain candidate PLMN at the current geographic position, the IMSI of the device is selected, and the device is started to complete network search and registration.
3. The system of claim 2, wherein the querying the device IMSI and PLMN home/roaming relationship database obtains a home/roaming relationship priority list of each device IMSI and candidate PLMN, selects one of the device IMSIs, powers on, completes network search and registration, and specifically includes:
if the IMSI of each device does not have the home relationship with each candidate PLMN at the current position, but the roaming charge of a certain device IMSI and a certain candidate PLMN at the current geographical position is lower than a set threshold value, the device IMSI is selected, and the device is started to complete network search and registration.
4. The system of claim 3, wherein the querying the device IMSI and PLMN home/roaming relationship database obtains a home/roaming relationship priority list of each device IMSI and candidate PLMN, selects one of the device IMSIs, powers on, completes network search and registration, and specifically includes:
if only a roaming relation exists between the IMSI of a certain device and a candidate PLMN in the current geographic position, the IMSI of the device is selected, and the device is started to complete network search and registration.
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| US8977263B2 (en) * | 2010-09-01 | 2015-03-10 | Qualcomm Incorporated | Overall system selection for user equipment with multiple international mobile subscriber identities |
| CN105307238B (en) * | 2014-07-31 | 2018-11-27 | 展讯通信（上海）有限公司 | A kind of mobile terminal and its network selection method and device |
| CN105142168A (en) * | 2015-07-23 | 2015-12-09 | 努比亚技术有限公司 | Method and device for switching mobile terminal among multiple SIM cards |
| CN105120450B (en) * | 2015-09-07 | 2018-09-14 | 中国联合网络通信集团有限公司 | Card data selecting method and user terminal in SIM card |
| US9877275B2 (en) * | 2016-01-05 | 2018-01-23 | Blackberry Limited | Method and apparatus for multi-SIM selection |
| CN106375962A (en) * | 2016-11-16 | 2017-02-01 | 努比亚技术有限公司 | Network searching method and mobile terminal |
| CN110381494A (en) * | 2018-04-13 | 2019-10-25 | 财付通支付科技有限公司 | Access method, device, SIM card, terminal and the storage medium of roaming network |
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Address after: 100191 room 701, 7th floor, building 66, 14 Huayuan North Road, Haidian District, Beijing Patentee after: Zhongying Technology Co., Ltd. Address before: 100191 room 701, 7th floor, building 66, 14 Huayuan North Road, Haidian District, Beijing Patentee before: ZONKIN TECHNOLOGY CO.,LTD. |
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