CN110312249B - Method and device for terminal to actively join different network group - Google Patents
Method and device for terminal to actively join different network group Download PDFInfo
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- CN110312249B CN110312249B CN201910650895.6A CN201910650895A CN110312249B CN 110312249 B CN110312249 B CN 110312249B CN 201910650895 A CN201910650895 A CN 201910650895A CN 110312249 B CN110312249 B CN 110312249B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W12/06—Authentication
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- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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Abstract
The invention provides a method and a device for a terminal to actively join a different network group, which belong to the technical field of network communication and can at least partially solve the problem that the existing communication method can not realize the terminal to actively join the different network group. The invention discloses a method for a terminal to actively join a different network group, which comprises the following steps: acquiring an initial request from a calling terminal in a first network, wherein the initial request comprises a communication group identifier in a second network, which is requested to be added by the calling terminal; judging whether the calling terminal is allowed to temporarily roam to a limited area of a second network or not; if the position information is allowed, acquiring the current position information of the calling terminal; the calling terminal is temporarily roamed to a second network according to the current position information, and the access mobile management entry address of the second network corresponding to the current position information is inquired; the calling terminal accesses the second network in a roaming way by accessing the entry address of the mobile management.
Description
Technical Field
The invention belongs to the technical field of network communication, and particularly relates to a method and a device for a terminal to actively join a different network group.
Background
Currently, data sharing is realized between terminals by using social software (such as WeChat), and such a data sharing mode generally requires storage and forwarding by using a server of the social software. However, if the shared data among the terminals is large-flow data, the sharing may fail due to the limitation of the server of the social software. In the prior art, a group is generally established by terminals needing data sharing, so that the terminals in the group can directly realize data sharing without a server of social software, and thus, large-flow data sharing can be realized.
However, in the prior art, only the group establishment of the terminals in the same network can be realized, and a method for enabling the terminals to actively join in a different network group is not provided.
Disclosure of Invention
The invention at least partially solves the problem that the prior communication method can not realize the terminal to actively join the different network group, and provides a method for the terminal to actively join the different network group.
The technical scheme adopted for solving the technical problem of the invention is a method for actively joining a terminal into a different network group, which comprises the following steps:
acquiring an initial request from a calling terminal in a first network, wherein the initial request comprises a communication group identifier in a second network, which is requested to be added by the calling terminal;
judging whether the calling terminal is allowed to temporarily roam to a limited area of a second network or not;
if the calling terminal is allowed to temporarily roam to a limited area of a second network, acquiring the current position information of the calling terminal;
enabling the calling terminal to temporarily roam to a second network according to the current position information, and inquiring an access mobile management entry address of the second network corresponding to the current position information;
the calling terminal accesses a second network in a roaming mode through the access address of the visiting mobile management;
and sending a join permission message and a network reselection command to the first network so that the calling terminal sends a network reselection request, wherein the network reselection command comprises a network number of a second network.
It is further preferred that the obtaining of the initial request from the calling terminal in the first network and the determining whether the calling terminal is allowed to temporarily roam to the defined area of the second network further include: judging whether the communication group in the initial request exists in a second network or not; if the communication group in the initial request exists in the second network, inquiring whether the first network end is allowed to join the service of the communication group; and if the first network end is allowed to join the service of the communication group, judging whether the calling terminal is allowed to temporarily roam to a limited area of a second network.
It is further preferred that the obtaining of the initial request from the calling terminal in the first network further includes: and establishing the communication group in the second network, wherein the communication group comprises a plurality of terminals in the second network, and the terminals can communicate with each other.
Further preferably, after the sending the join permission message and the network reselection command to the first network so that the calling terminal sends the network reselection request, the method further includes: acquiring the network reselection request, identifying the opened temporary roaming of the calling terminal, and obtaining roaming login authentication of the calling terminal so as to realize second network login of the calling terminal; sending a second network login completion message of the calling terminal to the calling terminal so that the calling terminal sends a group access request; acquiring the group entering request, wherein the group entering request comprises the communication group identification which is requested to be added by the calling terminal; and according to the group entering request, obtaining the authentication of the communication group service and realizing the session update of the communication group so as to enable the calling terminal and other terminals in the communication group to communicate.
It is further preferable that the causing the calling terminal to access the second network in a roaming manner through the visited mobility managed entry address further includes: and updating the communication group identification.
It is further preferred that the calling terminal is a 5G terminal.
The technical scheme adopted for solving the technical problem of the invention is a device for a terminal to actively join a different network group, which comprises the following steps:
a first obtaining module, configured to obtain an initial request from a calling terminal in a first network, where the initial request includes a communication group identifier in a second network to which the calling terminal requests to join;
the first judging module is used for judging whether the calling terminal is allowed to temporarily roam to a limited area of a second network or not;
a second obtaining module, configured to obtain current location information of the calling terminal if the calling terminal is allowed to temporarily roam to a limited area of a second network;
a first query module, configured to temporarily roam the calling terminal to a second network according to the current location information, and query an entry address of visited mobility management of the second network corresponding to the current location information;
the connection module is used for leading the calling terminal to access a second network in a roaming mode through the access mobile management entrance address;
a first sending module, configured to send a join permission message and a network reselection command to the first network, so that the calling terminal sends a network reselection request, where the network reselection command includes a network number of a second network.
Further preferably, the apparatus further comprises:
a second judging module, configured to judge whether the communication group in the initial request exists in a second network;
and the second query module is used for querying whether the first network end is allowed to join the service of the communication group or not if the communication group in the initial request exists in the second network.
Further preferably, the apparatus further comprises:
the establishing module is used for establishing the communication group in the second network, the communication group comprises a plurality of terminals in the second network, and the terminals can communicate with each other.
Further preferably, the apparatus further comprises:
a third obtaining module, configured to obtain the network reselection request, identify the opened temporary roaming of the calling terminal, and obtain roaming login authentication of the calling terminal to implement a second network login of the calling terminal;
a second sending module, configured to send a second network login completion message of the calling terminal to the calling terminal, so that the calling terminal sends a group entering and exiting request;
a fourth obtaining module, configured to obtain the group entry request, where the group entry request includes the communication group identifier that the calling terminal requests to join;
and the first updating module is used for obtaining the authentication of the communication group service and realizing the session updating of the communication group according to the group entering request so as to enable the calling terminal and other terminals in the communication group to communicate.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart illustrating a method for a terminal to actively join a heterogeneous network group according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for a terminal to actively join a heterogeneous network group according to an embodiment of the present invention;
fig. 3 is a block diagram illustrating a configuration of an apparatus for a terminal to actively join a heterogeneous network group according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 1, the present embodiment provides a method for a terminal to actively join a heterogeneous network group, including:
and S11, acquiring an initial request from the calling terminal in the first network, wherein the initial request comprises the communication group identification in the second network which the calling terminal requests to join.
Wherein, that is to say, the calling terminal UE1 belongs to a first Network (Public Land Mobile Network1, PLMN1), such as china Mobile; and the communication group belongs to a second Network (Public Land Mobile Network2, PLMN 2). When the UE1 wishes to join the communication group, the UE1 issues an initial request to an Access and Mobility Management Function1 (AMF 1) of the PLMN 1. The initial request includes a group service access code of the communication group, which is a service access number of the PLMN2 operator for performing the group service, and an identifier IGI, which is an identifier set by the creating user when creating the communication group and used to identify the group.
And S12, judging whether the calling terminal is allowed to temporarily roam to the limited area of the second network.
That is, the Policy Control Function1 (PCF 1) of the PLMN1 determines whether to allow the UE1 to temporarily roam into the PLMN2 restricted area.
And S13, if the calling terminal is allowed to temporarily roam to the limited area of the second network, acquiring the current position information of the calling terminal.
In other words, if the PCF1 determines that the UE1 is allowed to temporarily roam into the limited area of the PLMN2, the PCF1 queries a Location Management unit (Location Management Function1, LMF1) of the PLMN1 about the current Location information, such as GPS coordinates, of the UE 1. Subsequently, LMF1 returns the current location information of UE1 to PCF1, and PCF1 returns the location information of PLMN1 allowing UE1 to temporarily roam into PLMN2 and UE1 to the Policy Control Function2 (PCF 2) of PLMN 2.
S14, the calling terminal temporarily roams to the second network according to the current location information, and inquires the visited mobile management entry address of the second network corresponding to the current location information.
That is, PCF2 returns a Unified Data Management module (UDM 2) of PLMN2 with permission for PLMN1 network termination plus PLMN2 communication group services and for calling terminal UE1 of PLMN1 to temporarily roam into a defined area of PLMN 2. The UDM2 queries, according to the location information of the UE1, (through UDR) the Access and Mobility Management Function2 (AMF 2) of the PLMN2 serving the location in the PLMN 2.
And S15, the calling terminal accesses the second network in a roaming mode by accessing the entry address of the mobile management.
Wherein, that is, UDM2 interacts with AMF2, AMF2 is informed to allow UE1 (identified by 5G-GUTI) to access PLMN2 in a roaming manner. And transmitting the communication group identity to the AMF2, such as updating the communication group identity from (IGI, SUPI _ UE2, SUPI _ UE3, …, SUPI _ UE) to (IGI, SUPI _ UE2, SUPI _ UE3, …, SUPI _ UE, 5G-GUTI _ UE1), SUPI _ UE representing a subscription permanent identifier of the terminal UE.
And S16, sending the join permission message and a network reselection command to the first network so that the calling terminal sends a network reselection request, wherein the network reselection command comprises the network number of the second network.
That is, the UDM2 returns a join allowed group message to the AMF1, and a network reselection command including the network number MNC2 of the PLMN2 and the communication group id.
In the method for actively joining a terminal to a different network group in this embodiment, the 5G calling terminal can actively join the different network group, so that the 5G calling terminal in the first network and other terminals in the second network can share large-traffic data.
Example 2:
as shown in fig. 2, the present embodiment provides a method for a terminal to actively join a heterogeneous network group, including:
and S21, establishing a communication group in the second network, wherein the communication group comprises a plurality of terminals in the second network, and the terminals can communicate with each other.
In other words, the communication group of PLMN2 includes UEs 2 to UEn terminals. Data forwarding between the UE2 and the UEn terminals can be performed through a User Plane Function (User Plane Function2, UPF2) without passing through an external Data Network (DN). The identification of the communication group includes a group ID, (IGI, SUPI _ UE2, SUPI _ UE3, …, SUPI _ UE), and (IGI, SID), wherein SID represents a session ID of the current communication group session.
And S22, acquiring an initial request from the calling terminal in the first network, wherein the initial request comprises the communication group identification in the second network which the calling terminal requests to join.
Wherein, that is to say, the calling terminal UE1 belongs to a first Network (Public Land Mobile Network1, PLMN1), such as china Mobile; and the communication group belongs to a second Network (Public Land Mobile Network2, PLMN 2). When the UE1 wishes to join the communication group, the UE1 issues an initial request to an Access and Mobility Management Function1 (AMF 1) of the PLMN 1. The initial request includes a group service access code of the communication group, which is a service access number of the PLMN2 operator for performing the group service, and an identifier IGI, which is an identifier set by the creating user when creating the communication group and used to identify the group.
Specifically, the calling terminal is a 5G terminal.
S23, judging whether the second network has the communication group in the initial request.
Wherein, that is, the AMF1 recognizes that the home network of the communication group service access number is PLMN2, and forwards the access initiation request to the UDM 2. Subsequently, after receiving the initial request from the AMF1 of the PLMN1, the UDM2 first searches whether a corresponding group exists according to the communication group id, and if not, ends the procedure.
S24, if the communication group in the initial request exists in the second network, querying whether the first network is allowed to join the service of the communication group.
In this case, that is, if there is a corresponding communication group, the PCF2 is queried whether the terminal in the PLMN1 allows joining the group service of the PLMN 2.
S25, if the first network is allowed to join the service of the communication group, determining whether the calling terminal is allowed to temporarily roam to the limited area of the second network.
And S26, if the calling terminal is allowed to temporarily roam to the limited area of the second network, acquiring the current position information of the calling terminal.
Therein, that is, if the policy in PCF2 allows a terminal in PLMN1 to temporarily roam into a defined area of PLMN2, PCF2 diverts PCF1 to query the policy configuration of UE1 in PLMN1 as to whether temporary roaming into a defined area of PLMN2 is allowed.
S27, the calling terminal temporarily roams to the second network according to the current location information, and inquires the visited mobile management entry address of the second network corresponding to the current location information.
In other words, the PCF2 returns to the UDM2 information that allows the PLMN1 network terminal to add PLMN2 communication group services, and allows the calling terminal UE1 of the PLMN1 to temporarily roam into the PLMN2 restricted area, and the current location of the UE 1. The UDM2 queries (via UDR) the AMF2 in the PLMN2 serving the location based on the location information of the UE 1.
S28, the calling terminal accesses the second network in a roaming mode by accessing the entry address of the mobile management;
wherein, the accessing the calling terminal to the second network in a roaming way by accessing the entry address of the mobile management further comprises: and updating the communication group identification.
Wherein, that is, UDM2 interacts with AMF2, AMF2 is informed to allow UE1 (identified by 5G-GUTI) to access PLMN2 in a roaming manner. And transmitting the communication group identity to the AMF2, such as updating the communication group identity from (IGI, SUPI _ UE2, SUPI _ UE3, …, SUPI _ UE) to (IGI, SUPI _ UE2, SUPI _ UE3, …, SUPI _ UE, 5G-GUTI _ UE1), SUPI _ UE representing a subscription permanent identifier of the terminal UE.
And S29, sending the join permission message and a network reselection command to the first network so that the calling terminal sends a network reselection request, wherein the network reselection command comprises the network number of the second network.
That is, the UDM2 returns a join allowed group message to the AMF1, and a network reselection command including the network number MNC2 of the PLMN2 and the communication group id. After receiving the UDM2 feedback message, AMF1 then provides temporary restricted area roaming permission for UE1 in interaction with UMD 1. The AMF1 returns a join allowed group message to the UE1, along with a network reselect network command to reselect the network number MNC2 whose target network number is PLMN 2.
S210, acquiring the network reselection request, identifying the opened temporary roaming of the calling terminal, and obtaining the roaming login authentication of the calling terminal so as to realize the second network login of the calling terminal.
Wherein, that is, the UE1 performs network reselection, or (enables the 5G dual link feature) newly establishes a network connection, and connects to the PLMN 2.
And S211, sending a second network login completion message of the calling terminal to the calling terminal so that the calling terminal sends a group entering and exiting request.
When receiving an access request from the UE1, the AMF2 recognizes that the called terminal has opened temporary roaming (according to 5G-GUTI of the UE1), and interacts with the UDM1 to complete roaming log-in authentication of the UE 1. Thereafter, AMF2 returns a logoff success message to UE1 to cause UE1 to submit a join group IGI request to AMF 2.
S212, a group entering request is obtained, wherein the group entering request comprises a communication group identification which is requested to be added by the calling terminal.
In other words, AMF2 obtains the group entry request of the called terminal.
S213, according to the group entering request, the authentication of the communication group service is obtained and the session update of the communication group is realized, so that the calling terminal and other terminals in the communication group can communicate with each other.
Wherein, the AMF2 returns a successful logoff message to the UE 1. The UE1 submits a join group IGI request to the AMF 2. The AMF2 sends a session update request to the SMF2 of the bearer (IGI, SID). Subsequently, SMF2 interacts with UDM2 to complete group service authentication. The SMF2 interacts with the UPF2 of the bearer to complete the session update. The SMF2 returns a session update complete message to the AMF 2. The AMF2 returns a session setup success message to the UE1, and simultaneously returns a session update success message to the UE2 to UE n. The UE1 and UEs 2 through UEn may communicate via the UPF2 for the communication group.
Example 3:
as shown in fig. 3, the present embodiment provides an apparatus for a terminal to actively join a heterogeneous network group, including:
the first obtaining module is used for obtaining an initial request from a calling terminal in a first network, wherein the initial request comprises a communication group identifier in a second network, which is requested to be added by the calling terminal.
Wherein the first acquisition module may include AMF 1.
The first judging module is used for judging whether the calling terminal is allowed to temporarily roam to the limited area of the second network.
Wherein the first determination module may comprise PCF 2.
And the second acquisition module is used for acquiring the current position information of the calling terminal if the calling terminal is allowed to temporarily roam to the limited area of the second network.
Wherein the second acquisition module may include LMF 1.
And the first query module is used for temporarily roaming the calling terminal to the second network according to the current position information and querying the access mobile management entry address of the second network corresponding to the current position information.
Wherein the first query module may comprise UDM 2.
And the connection module is used for enabling the calling terminal to access the second network in a roaming mode by accessing the entry address of the mobile management.
Wherein the connection module includes AMF 2.
The first sending module is used for sending the join allowing message and a network reselection command to the first network so that the calling terminal sends a network reselection request, wherein the network reselection command comprises a network number of the second network.
Wherein the first sending module comprises UDM 2.
The device also includes:
and the second judging module is used for judging whether the communication group in the initial request exists in the second network.
Wherein the second determination module comprises UDM 2.
And the second query module is used for querying whether the first network end is allowed to join the service of the communication group or not if the communication group in the initial request exists in the second network.
The establishing module is used for establishing a communication group in the second network, the communication group comprises a plurality of terminals in the second network, and the plurality of terminals can communicate with each other.
Wherein the setup module includes UDM 2.
And the third acquisition module is used for acquiring the network reselection request, identifying the opened temporary roaming of the calling terminal, and obtaining the roaming login authentication of the calling terminal so as to realize the second network login of the calling terminal.
And the second sending module is used for sending a second network login completion message of the calling terminal to the calling terminal so that the calling terminal sends a group access request.
Wherein, the fourth sending module may comprise AMF2
And the fourth acquisition module is used for acquiring the group entering request, wherein the group entering request comprises the communication group identification which is requested to be added by the calling terminal.
Wherein the third acquisition module may include AMF 2.
And the first updating module is used for obtaining the authentication of the communication group service and realizing the session updating of the communication group according to the group entering request so as to enable the calling terminal and other terminals in the communication group to communicate.
Wherein, the second processing module may comprise AMF2, SMF2, etc.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
While embodiments in accordance with the invention have been described above, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A method for a terminal to actively join a different network group is characterized by comprising the following steps:
acquiring an initial request from a calling terminal in a first network, wherein the initial request comprises a communication group identifier in a second network and a group service access code of the communication group, which are requested to be added by the calling terminal;
judging whether the calling terminal is allowed to temporarily roam to a limited area of a second network or not;
if the calling terminal is allowed to temporarily roam to a limited area of a second network, acquiring the current position information of the calling terminal;
enabling the calling terminal to temporarily roam to a second network according to the current position information, and inquiring an access mobile management entry address of the second network corresponding to the current position information;
the calling terminal accesses a second network in a roaming mode through the access address of the visiting mobile management;
sending a join permission message and a network reselection command to the first network so that the calling terminal sends a network reselection request, wherein the network reselection command comprises a network number of a second network and the communication group identifier;
acquiring the network reselection request, identifying the opened temporary roaming of the calling terminal, and obtaining roaming login authentication of the calling terminal so as to realize second network login of the calling terminal;
sending a second network login completion message of the calling terminal to the calling terminal so that the calling terminal sends a group access request;
acquiring the group entering request, wherein the group entering request comprises the communication group identification which is requested to be added by the calling terminal;
according to the group entering request, obtaining the authentication of the communication group service and realizing the session update of the communication group so as to enable the calling terminal and other terminals in the communication group to carry out communication group communication through a user plane function;
the accessing the calling terminal to the second network in a roaming manner through the visiting mobility managed entry address further comprises:
and updating the communication group identification.
2. The method of claim 1, wherein obtaining the initial request from the calling terminal in the first network and determining whether the calling terminal is allowed to temporarily roam to the defined area of the second network further comprises:
judging whether the communication group in the initial request exists in a second network or not;
if the communication group in the initial request exists in the second network, inquiring whether the first network end is allowed to join the service of the communication group;
and if the first network end is allowed to join the service of the communication group, judging whether the calling terminal is allowed to temporarily roam to a limited area of a second network.
3. The method of claim 1, wherein obtaining the initial request from the calling terminal in the first network is preceded by:
and establishing the communication group in the second network, wherein the communication group comprises a plurality of terminals in the second network, and the terminals can communicate with each other.
4. The method of claim 1, wherein the calling terminal is a 5G terminal.
5. A device for a terminal to actively join a heterogeneous network group is characterized by comprising:
a first obtaining module, configured to obtain an initial request from a calling terminal in a first network, where the initial request includes a communication group identifier in a second network and a group service access code of the communication group, where the calling terminal requests to join;
the first judging module is used for judging whether the calling terminal is allowed to temporarily roam to a limited area of a second network or not;
a second obtaining module, configured to obtain current location information of the calling terminal if the calling terminal is allowed to temporarily roam to a limited area of a second network;
a first query module, configured to temporarily roam the calling terminal to a second network according to the current location information, and query an entry address of visited mobility management of the second network corresponding to the current location information;
the connection module is used for leading the calling terminal to access a second network in a roaming mode through the access mobile management entrance address;
a first sending module, configured to send a join permission message and a network reselection command to the first network, so that the calling terminal sends a network reselection request, where the network reselection command includes a network number of a second network and the communication group identifier;
a third obtaining module, configured to obtain the network reselection request, identify the opened temporary roaming of the calling terminal, and obtain roaming login authentication of the calling terminal to implement a second network login of the calling terminal;
a second sending module, configured to send a second network login completion message of the calling terminal to the calling terminal, so that the calling terminal sends a group entering and exiting request;
a fourth obtaining module, configured to obtain the group entry request, where the group entry request includes the communication group identifier that the calling terminal requests to join;
a first updating module, configured to obtain authentication of the communication group service and implement session update of the communication group according to the group entry request, so that the calling terminal and other terminals in the communication group can perform communication group communication via a user plane function;
the connection module is further configured to: and updating the communication group identification.
6. The apparatus of claim 5, further comprising:
a second judging module, configured to judge whether the communication group in the initial request exists in a second network;
and the second query module is used for querying whether the first network end is allowed to join the service of the communication group or not if the communication group in the initial request exists in the second network.
7. The apparatus of claim 5, further comprising:
the establishing module is used for establishing the communication group in the second network, the communication group comprises a plurality of terminals in the second network, and the terminals can communicate with each other.
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