CN113613169B - Method, system, device and storage medium for accessing Internet of things terminal to core network - Google Patents
Method, system, device and storage medium for accessing Internet of things terminal to core network Download PDFInfo
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- CN113613169B CN113613169B CN202110935410.5A CN202110935410A CN113613169B CN 113613169 B CN113613169 B CN 113613169B CN 202110935410 A CN202110935410 A CN 202110935410A CN 113613169 B CN113613169 B CN 113613169B
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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
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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
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
Abstract
The invention discloses a method, a system, a device and a storage medium for accessing an Internet of things terminal to a core network, which comprises the following steps: broadcasting a first public land mobile network list supported by a satellite to the Internet of things terminal according to a preset time interval; receiving a second public land mobile network list and a position attribute reported by the terminal of the Internet of things; the second public land mobile network list is determined according to the first public land mobile network list and a public land mobile network name list supported by the Internet of things terminal; sending the position attribute and a second public land mobile network name list to a first core network, and receiving a core network list of the second public land mobile network name list corresponding to the first core network feedback position attribute; and determining a core network accessed by the terminal of the Internet of things according to the core network list. The embodiment of the invention can improve the success rate and the accuracy rate of the access of the terminal of the Internet of things to the core network, further reduce the time delay of the access of the terminal of the Internet of things to the core network, and can be widely applied to the field of communication.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method, system, apparatus, and storage medium for accessing an internet of things terminal to a core network.
Background
In recent years, the satellite emission cost and the satellite development admission threshold are continuously reduced, a large number of initial enterprises are vigorously developed, and the purpose is to develop a low-orbit Internet of things small satellite constellation and provide Internet of things services with low cost, wide coverage, low time delay and large connection quantity for global users. The country pays high attention to the development of the last 5G low-orbit satellite, and in the NB-IoT satellite Internet of things, a satellite Internet of things terminal needs to be accessed to a core network. Generally, the internet of things terminal can be registered in only one core network at the same time; in some scenarios, the satellite may be connected to multiple core networks, and therefore the satellite needs to select one of the core networks for the internet of things terminal to access. Generally, a core network is randomly selected for the internet of things terminal by the satellite, so that the condition of selecting the core network by mistake is easily caused, the success rate and the accuracy rate of accessing the internet of things terminal to the core network are reduced, and the time delay of accessing the internet of things terminal to the core network is also reduced.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method, a system, a device, and a storage medium for accessing an internet of things terminal to a core network, which can improve the success rate and accuracy of accessing the internet of things terminal to the core network, and further reduce the time delay of accessing the internet of things terminal to the core network.
In a first aspect, an embodiment of the present invention provides a method for accessing an internet of things terminal to a core network, including:
broadcasting a first public land mobile network list supported by a satellite to an Internet of things terminal according to a preset time interval;
receiving a second public land mobile network list and a position attribute reported by the terminal of the Internet of things; the second public land mobile network name list is determined according to the first public land mobile network list and a public land mobile network name list supported by the Internet of things terminal;
sending the location attribute and the second public land mobile network name list to a first core network, and receiving a core network list of the second public land mobile network name list corresponding to the location attribute fed back by the first core network;
and determining the core network accessed by the terminal of the Internet of things according to the core network list.
Optionally, the receiving the list of the second public land mobile network and the location attribute reported by the terminal of the internet of things specifically includes:
and receiving a second public land mobile network list and longitude and latitude reported by the terminal of the receiving internet of things.
Optionally, the core network list is obtained by the following method:
inputting the longitude and latitude into an electronic map to obtain a region name corresponding to the longitude and latitude;
Determining the list of core networks supporting a second list of public land mobile networks within the area name range.
Optionally, the method further comprises:
and receiving load information corresponding to the core network list.
Optionally, the determining, according to the core network list, a core network to which the terminal of the internet of things is accessed includes:
sorting the core network list according to the load information;
and selecting the core network with the least load from the core network name list as the core network accessed by the terminal of the Internet of things.
Optionally, the method further comprises:
receiving registration information of the terminal of the Internet of things, wherein the registration information comprises information of a region where the terminal of the Internet of things is located;
sending the registration information and a service area core network mapping table to be updated to a second core network for registration; the mapping table of the core network of the service area to be updated is determined according to the area information;
and receiving the registration success information and the updated service area core network mapping table.
In a second aspect, an embodiment of the present invention provides a system for accessing an internet of things terminal to a core network, including:
the system comprises a first module, a second module and a third module, wherein the first module is used for broadcasting a first public land mobile network list supported by a satellite to an Internet of things terminal according to a preset time interval;
The second module is used for receiving a second public land mobile network list and position attributes reported by the terminal of the Internet of things; the second public land mobile network name list is determined according to the first public land mobile network list and a public land mobile network name list supported by the terminal of the internet of things;
a third module, configured to send the location attribute and the second plmn list to a first core network, and receive a list of core networks of the second plmn list corresponding to the location attribute fed back by the first core network;
and the fourth module is used for determining the core network accessed by the terminal of the internet of things according to the core network list.
In a third aspect, an embodiment of the present invention provides an apparatus for accessing an internet of things terminal to a core network, including:
at least one processor;
at least one memory for storing at least one program;
when the at least one program is executed by the at least one processor, the at least one processor is enabled to implement the method for accessing the core network by the terminal of the internet of things.
In a fourth aspect, an embodiment of the present invention provides a storage medium, where a processor-executable program is stored, and the processor-executable program is configured to, when executed by a processor, perform the method for accessing a core network by a terminal of an internet of things described above.
The implementation of the embodiment of the invention has the following beneficial effects: the method comprises the steps that firstly, a satellite broadcasts a first public land mobile network list supported by the satellite to an internet of things terminal according to a preset time interval; then the terminal of the Internet of things determines a list of second public land mobile networks according to a list of public land mobile networks supported by the terminal of the Internet of things and the list of the received first public land mobile networks, and sends the list of the second public land mobile networks and the position attribute to the satellite; then the satellite sends the second public land mobile network list and the position attribute to the first core network to obtain a core network list of the second public land mobile network list corresponding to the position attribute; finally, the satellite determines a core network accessed by the Internet of things terminal according to the core network list; therefore, the success rate and the accuracy rate of the access of the Internet of things terminal to the core network are improved, the time for reselecting due to the selection of the wrong core network is reduced, and the time delay of the access of the Internet of things terminal to the core network is further reduced.
Drawings
Fig. 1 is a schematic flowchart illustrating steps of a method for accessing a terminal of an internet of things to a core network according to an embodiment of the present invention;
fig. 2 is a timing diagram of an access of an internet of things terminal to a core network according to an embodiment of the present invention;
Fig. 3 is a timing diagram of registering a core network at a terminal of the internet of things according to an embodiment of the present invention;
fig. 4 is a block diagram of a system for accessing a terminal of an internet of things to a core network according to an embodiment of the present invention;
fig. 5 is a block diagram of a device for accessing a terminal of the internet of things to a core network according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments. The step numbers in the following embodiments are provided only for convenience of illustration, the order between the steps is not limited at all, and the execution order of each step in the embodiments can be adapted according to the understanding of those skilled in the art.
The method comprises the following steps that an Internet of things terminal and a core network are located on the ground, the Internet of things terminal is linked to the core network through a space link between satellites, one satellite can be connected with a plurality of core networks at the same time, and the satellite needs to select a proper core network for the Internet of things terminal; when the terminal of the internet of things is positioned at the regional boundary of different core networks, if the satellite randomly selects one of the core networks for access, the probability of selecting the wrong or improper core network is higher.
As shown in fig. 1, an embodiment of the present invention provides a method for accessing an internet of things terminal to a core network, which is applied to a satellite, and includes:
S100, broadcasting a first Public Land Mobile Network (PLMN) list supported by a satellite to an Internet of things terminal according to a preset time interval.
It should be noted that PLMN is a name for mobile communication network; as in china, each mobile operator's network calculates a PLMN, and thus the networks for china mobile, china unicom and china telecommunications are different PLMNs.
It will be appreciated by those skilled in the art that the PLMN included in the PLMN list may be one or more.
Specifically, the satellite broadcasts a first PLMN list supported by the satellite to the terminal of the Internet of things according to a preset time interval; after receiving a first PLMN list broadcasted by a satellite, the Internet of things terminal matches the first PLMN list according to the PLMNs supported by the Internet of things terminal, and if the matched PLMNs exist, the matched PLMN list is reported to the satellite; and if no matched PLMN exists, the terminal does not report the supported PLMN and abandons the access.
For example, the first PLMN list of the satellite broadcast includes PLMN a, PLMN B and PLMN C, and if the PLMN supported by the internet of things terminal includes PLMN a, PLMN B and PLMN D, the internet of things terminal reports to the PLMN list of the satellite matching successfully including PLMN a and PLMN B; and if the PLMN supported by the Internet of things terminal comprises the PLMN D and the PLMN E, the Internet of things terminal does not report the PLMN to the satellite, and the access is abandoned.
S200, receiving a second public land mobile network list and position attributes reported by the terminal of the Internet of things; and the second public land mobile network name list is determined according to the first public land mobile network list and a public land mobile network name list supported by the terminal of the Internet of things.
Specifically, the second public land mobile network list is a PLMN list successfully matched, and if a PLMN list successfully matched exists, the internet of things terminal reports the second public land mobile network list and the location attribute to the satellite.
Optionally, the receiving a list of a second public land mobile network and a location attribute reported by the terminal of the internet of things specifically includes:
and S210, receiving a second public land mobile network list and longitude and latitude reported by the terminal of the receiving Internet of things.
Specifically, in the embodiment, the longitude and latitude are selected as the position attribute, and the accuracy of marking the position attribute by adopting the longitude and latitude is higher; other positioning manners may also be adopted, and the embodiment of the present invention is not particularly limited.
S300, sending the location attribute and the second public land mobile network name list to a first core network, and receiving a core network list of the second public land mobile network name list corresponding to the location attribute fed back by the first core network.
Specifically, the satellite sends the received location attribute and the second public land mobile network name list to the first core network, so that the first core network determines the core network within the location range according to the location attribute, and then selects the core network according with the second public land mobile network name list according to the core network within the location range.
Optionally, the core network list is obtained by the following method:
s310, inputting the longitude and latitude into an electronic map to obtain a region name corresponding to the longitude and latitude;
s330, determining the core network list supporting the second public land mobile network list in the area name range.
Specifically, taking the location attribute as the longitude and latitude as an example, the longitude and latitude are input into an electronic map to obtain a region name corresponding to the longitude and latitude, then a core network list in a region name range is determined, and then a core network list supporting a second public land mobile network list in the region name range is determined.
For example, the longitude and latitude reported by the internet of things terminal include 113 degrees of east longitude and 23 degrees of north latitude, the area name determined according to the longitude and latitude is a certain area in a certain city in Guangdong province of China, the core network list in the area includes PLMN A, PLMN B and PLMN C, the second public land mobile network list includes PLMN A and PLMN B, and the core network list supporting the second public land mobile network list in the area is PLMN A and PLMN B.
Optionally, the method further comprises:
and S320, receiving the load information corresponding to the core network list.
Specifically, when the satellite sends the location attribute and the second public land mobile network list to the first core network, the satellite also sends a load instruction for inquiring the core network list to the first core network; when the core network feeds back the core network list to the satellite, the load information corresponding to the core network list is also fed back.
S400, determining the core network accessed by the terminal of the Internet of things according to the core network list.
Specifically, the first core network only feeds back a core network list, and the satellite randomly selects one core network from the core network list as a core network accessed by the terminal of the internet of things; when the first core network feeds back the core network list and the corresponding load information, the core network with the least load may be selected as the core network to which the terminal of the internet of things is accessed according to the load information, so as to further reduce the delay, and the specific method steps are as in S410 to S420.
Optionally, the determining, according to the core network list, a core network to which the terminal of the internet of things is accessed includes:
s410, sorting the core network list according to the load information;
and S420, selecting the core network with the least load from the core network name list as the core network accessed by the terminal of the Internet of things.
A specific embodiment of the process of accessing the internet of things terminal to the core network is described below.
As shown in fig. 2, the satellite broadcasts a first PLMN list to the terminals of the internet of things; the internet of things terminal reports the successfully matched second PLMN list and longitude and latitude to the satellite; the satellite sends the longitude and latitude and the second PLMN list to a first core network; the first core network inputs the longitude and latitude into an electronic map server; the electronic map server returns the area name as a first core network; the first core network selects a core network list which is within the area name range and supports the second PLMN list to the satellite; and the satellite selects a core network accessed by the Internet of things terminal according to the core network name list.
After the satellite determines the core network accessed by the terminal of the internet of things, the terminal of the internet of things initiates registration information to the core network through the satellite, and after the registration is successful, the information of the terminal of the internet of things is forwarded to the determined core network.
Optionally, the method further comprises:
s510, receiving registration information of the terminal of the Internet of things, wherein the registration information comprises information of a region where the terminal of the Internet of things is located;
s520, sending the registration information and the service area core network mapping table to be updated to a second core network for registration; the mapping table of the core network of the service area to be updated is determined according to the area information;
S530, the registration success information and the updated service area core network mapping table are received.
Specifically, as shown in fig. 3, the terminal of the internet of things carries the area information where the terminal is located to initiate registration to the satellite, and the satellite carries the registration information of the core network mapping table of the service area to be updated to register to the core network-a; after the registration is successful, the core network-A carries registration success information of the mapping table and feeds the registration success information back to the satellite; the satellite carries registration information which does not need to update the mapping table to register with the finally selected core network-B, and after the registration is successful, the core network-B carries registration success information of the mapping table and feeds the registration success information back to the satellite; and the satellite acquires the core network of the area according to the mapping table and registers the terminal of the Internet of things.
The implementation of the embodiment of the invention has the following beneficial effects: the method comprises the steps that firstly, a first public land mobile network list supported by a satellite is broadcasted to an Internet of things terminal through the satellite according to a preset time interval; then the terminal of the Internet of things determines a list of second public land mobile networks according to a list of public land mobile networks supported by the terminal of the Internet of things and the list of the received first public land mobile networks, and sends the list of the second public land mobile networks and the position attribute to the satellite; then the satellite sends the second public land mobile network list and the position attribute to the first core network to obtain a core network list of the second public land mobile network list corresponding to the position attribute; finally, the satellite determines a core network accessed by the Internet of things terminal according to the core network list; therefore, the success rate and the accuracy rate of the access of the Internet of things terminal to the core network are improved, the time for reselecting due to the selection of the wrong core network is reduced, and the time delay of the access of the Internet of things terminal to the core network is further reduced.
As shown in fig. 4, an embodiment of the present invention provides a system for accessing an internet of things terminal to a core network, including:
the system comprises a first module, a second module and a third module, wherein the first module is used for broadcasting a first public land mobile network list supported by a satellite to an internet of things terminal according to a preset time interval;
the second module is used for receiving a second public land mobile network list and position attributes reported by the terminal of the Internet of things; the second public land mobile network name list is determined according to the first public land mobile network list and a public land mobile network name list supported by the terminal of the internet of things;
a third module, configured to send the location attribute and the second plmn list to a first core network, and receive a list of core networks of the second plmn list corresponding to the location attribute fed back by the first core network;
and the fourth module is used for determining the core network accessed by the terminal of the internet of things according to the core network list.
It can be seen that the contents in the foregoing method embodiments are all applicable to the present system embodiment, the functions specifically implemented by the present system embodiment are the same as those in the foregoing method embodiment, and the beneficial effects achieved by the present system embodiment are also the same as those achieved by the foregoing method embodiment.
As shown in fig. 5, an embodiment of the present invention provides an apparatus for accessing an internet of things terminal to a core network, including:
at least one processor;
at least one memory for storing at least one program;
when executed by the at least one processor, the at least one program causes the at least one processor to implement the method steps for accessing the core network by the terminal of the internet of things.
It can be seen that the contents in the foregoing method embodiments are all applicable to this apparatus embodiment, the functions specifically implemented by this apparatus embodiment are the same as those in the foregoing method embodiment, and the advantageous effects achieved by this apparatus embodiment are also the same as those achieved by the foregoing method embodiment.
In addition, the embodiment of the application also discloses a computer program product or a computer program, and the computer program product or the computer program is stored in a computer readable storage medium. The processor of the computer device may read the computer program from the computer-readable storage medium, and the processor executes the computer program, so that the computer device executes the method for accessing the internet of things terminal to the core network. Likewise, the contents of the above method embodiments are all applicable to the present storage medium embodiment, the functions specifically implemented by the present storage medium embodiment are the same as those of the above method embodiments, and the advantageous effects achieved by the present storage medium embodiment are also the same as those achieved by the above method embodiments.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A method for accessing an Internet of things terminal into a core network is characterized by comprising the following steps:
the method comprises the steps that a satellite broadcasts a first public land mobile network list supported by the satellite to an internet of things terminal according to a preset time interval;
receiving a second public land mobile network list and a position attribute reported by the Internet of things terminal by the satellite; the second public land mobile network list is determined by the Internet of things terminal according to the first public land mobile network list and a public land mobile network list supported by the Internet of things terminal;
the satellite sends the position attribute and the second public land mobile network name list to a first core network, and receives a core network list of the second public land mobile network name list corresponding to the position attribute fed back by the first core network;
and the satellite determines the core network accessed by the terminal of the Internet of things according to the core network list.
2. The method for accessing a core network by a terminal of internet of things according to claim 1, wherein the receiving a list of second public land mobile networks and location attributes reported by the terminal of internet of things specifically comprises:
and receiving a second public land mobile network list and longitude and latitude reported by the terminal of the receiving internet of things.
3. The method for accessing the core network by the terminal of the internet of things according to claim 2, wherein the list of the core networks is obtained by:
inputting the longitude and latitude into an electronic map to obtain a region name corresponding to the longitude and latitude;
determining the list of core networks supporting a second list of public land mobile networks within the region name range.
4. The method for accessing the core network by the terminal of the internet of things according to claim 1, wherein the method further comprises:
and receiving load information corresponding to the core network list.
5. The method for accessing the core network by the terminal of the internet of things according to claim 4, wherein the determining the core network accessed by the terminal of the internet of things according to the core network list comprises:
sorting the core network list according to the load information;
And selecting the core network with the least load from the core network name list as the core network accessed by the terminal of the Internet of things.
6. The method for accessing the core network by the terminal of the internet of things according to claim 1, wherein the method further comprises:
receiving registration information of the terminal of the Internet of things, wherein the registration information comprises information of a region where the terminal of the Internet of things is located;
sending the registration information and a mapping table of the core network of the service area to be updated to a second core network for registration; the mapping table of the core network of the service area to be updated is determined according to the area information;
and receiving the registration success information and the updated service area core network mapping table.
7. A system for accessing a terminal of an Internet of things into a core network is characterized by comprising:
the system comprises a first module, a second module and a third module, wherein the first module is used for broadcasting a first public land mobile network list supported by a satellite to an Internet of things terminal according to a preset time interval;
the second module is used for receiving a second public land mobile network list and a position attribute reported by the terminal of the Internet of things; the second public land mobile network name list is determined according to the first public land mobile network list and a public land mobile network name list supported by the Internet of things terminal;
A third module, configured to send the location attribute and the second plmn list to a first core network, and receive a list of core networks of the second plmn list corresponding to the location attribute fed back by the first core network;
and the fourth module is used for determining the core network accessed by the terminal of the internet of things according to the core network list.
8. A device for accessing a terminal of an Internet of things into a core network is characterized by comprising:
at least one processor;
at least one memory for storing at least one program;
the at least one program, when executed by the at least one processor, causes the at least one processor to implement the method for an internet of things terminal to access a core network as claimed in any one of claims 1-6.
9. A storage medium having stored therein a program executable by a processor, wherein the program executable by the processor is configured to perform the method for accessing the core network by the terminal of the internet of things according to any one of claims 1 to 6.
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| CN111837426A (en) * | 2018-03-14 | 2020-10-27 | 高通股份有限公司 | Apparatus and method for facilitating optimization of public land mobile network configuration for system information blocks |
| CN112106387A (en) * | 2018-05-10 | 2020-12-18 | 康维达无线有限责任公司 | Server in communication path of Internet of things |
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| CN103906180B (en) * | 2012-12-28 | 2017-07-04 | 联芯科技有限公司 | A kind of method of fast search PLMN |
| CN105101081A (en) * | 2015-07-07 | 2015-11-25 | 小米科技有限责任公司 | Method and device for searching Public Land Mobile Networks (PLMN) |
| US10764815B2 (en) * | 2018-06-11 | 2020-09-01 | Ofinno, Llc | Base station network sharing configuration |
| WO2020000174A1 (en) * | 2018-06-26 | 2020-01-02 | Oppo广东移动通信有限公司 | Core network selection method and apparatus, terminal device and network device |
| CN109041168A (en) * | 2018-10-26 | 2018-12-18 | Oppo广东移动通信有限公司 | Communication network cut-in method, electronic device and computer readable storage medium |
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| CN111837426A (en) * | 2018-03-14 | 2020-10-27 | 高通股份有限公司 | Apparatus and method for facilitating optimization of public land mobile network configuration for system information blocks |
| CN112106387A (en) * | 2018-05-10 | 2020-12-18 | 康维达无线有限责任公司 | Server in communication path of Internet of things |
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