CN106034279B - D2D service authorization method and near field communication server - Google Patents

D2D service authorization method and near field communication server Download PDF

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CN106034279B
CN106034279B CN201510107800.8A CN201510107800A CN106034279B CN 106034279 B CN106034279 B CN 106034279B CN 201510107800 A CN201510107800 A CN 201510107800A CN 106034279 B CN106034279 B CN 106034279B
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authorization
service
information
mobile network
land mobile
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CN106034279A (en
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卢飞
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ZTE Corp
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ZTE Corp
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks

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Abstract

The invention provides a method for D2D service authorization and a near field communication server, wherein the method comprises the following steps: receiving a service authorization request message of a terminal; determining a public land mobile network authorized to time out; and obtaining authorization information from a local/visiting near field communication server corresponding to the public land mobile network with overtime authorization, and returning the authorization information to the terminal. The invention can solve the problem that unnecessary signaling is generated by the home base function and the local/visit base function in the service authorization in the related technology, and can also solve the problem of realization complexity of re-acquiring the authorization information by the UE.

Description

D2D service authorization method and near field communication server
Technical Field
The present invention relates to the field of communications, and in particular, to a method for Device to Device (D2D) service authorization and a near field communication server.
Background
Terminals in the vicinity can bring many benefits to the terminals by using Device to Device (D2D for short) direct communication, such as higher speed, lower delay and less power consumption, and also greatly improve the radio resource efficiency of the operator, and the Relay mode of D2D is beneficial to the operator to improve the radio coverage; for application, new attractive services can be developed by utilizing the proximity information in the D2D communication process. Public safety (public safety) systems may also utilize D2D technology to enable communication between terminals without wireless coverage.
Fig. 1 is a schematic diagram of a D2D architecture related to 3GPP (The 3rd Generation Partnership Project) in The related art, and The functions of The key network elements are described as follows, as shown in fig. 1:
a terminal: also called User Equipment (UE for short), supports direct discovery of the other party between the terminal and the terminal through an air interface, and does not need to directly communicate through a network.
A core network gateway: the PDN Gateway is also called a Packet Data Network Gateway (PDN gw for short) and is configured to provide an access point for a terminal to access a PDN Network, where the PDN Network Gateway has a main function of allocating an IP address to the terminal, forwarding a Data Packet sent from the terminal to a corresponding PDN Network through IP, mapping the Data Packet sent from the PDN Network to different bearers (bearer) according to different flows (flows), and then sending the Data Packet to the terminal.
A Home Subscriber Server (HSS for short) is located in a Home network, and mainly functions to provide subscription information and authentication information of users and applications.
And a near field communication server (proximity function), which is located outside the PDN GW and mainly includes functions of D2D service authorization, allocating temporary codes (codes) for terminal-requested applications for terminal broadcasting, assisting D2D discovery, charging, and the like. Currently, only one short-range communication server is deployed in a Public Land Mobile Network (PLMN).
Fig. 2 is a schematic diagram of a D2D service authorization process according to the related art, and as shown in fig. 2, the process includes the following steps:
step S202, the connection is established between the terminal and the PDN GW, and after the IP address of the user is obtained from the PDN GW, an authorization request is sent to the home near field communication server. The terminal inquires a corresponding IP address through a DNS according to a Fully Qualified Domain Name/Fully Qualified Domain Name (FQDN) of a home near field communication server, and then communicates with the address. The FQDN of the home nfc server may be statically configured in the terminal or may be derived from the home PLMN ID. The IP address of the home near field communication server may also be configured in the terminal. The authorization message includes PLMN information where the subscriber currently resides and a subscriber identity IMSI (International Mobile subscriber identity).
Step S204, if the home near field communication server has no user subscription information, the home near field communication server requests the user subscription information from the home user server, and the request has the user identification IMSI;
in step S206, the home nfc server obtains the subscription information and stores the subscription information in the local database.
Step S208, the home nfc server needs to obtain authorization information and authorization validity time from the local/visited nfc server according to the obtained PLMN list.
And step S210, the local/visiting near field communication server returns an authorization response and returns the effective time of authorization.
Step S212, according to the user subscription information and the local configuration, the home nfc server returns the D2D authorization information of the user, where the authorization information includes information: the full authorization allows the D2D service PLMN list and the user's current location home PLMN list, and the authorization valid time corresponding to each PLMN. And after receiving the authorization information, the UE starts a timer for each PLMN, and when the timer is overtime, the UE needs to send an authorization request to the home near field communication server again.
If authorization is required to a plurality of local/visiting proximity communication servers in step S208, the steps of S208-S210 are repeated.
The terminal will then decide whether to initiate D2D traffic based on the authorization result.
In the prior art, after the home base function receives the re-authorization request message of the UE, the home base function still needs to obtain the authorization information and the effective time of authorization from the local/visited near field communication server, which causes unnecessary signaling between the home base function and the local/visited base function; in addition, after the home Prose function returns the re-authorization information to the UE, the UE needs to stop the authorization timer started for the authorized PLMN, and then restart the timer for each authorized PLMN, and the UE determines whether to initiate the D2D service or stop the D2D service according to the re-authorization result, which also increases the implementation complexity of the UE to a certain extent.
For the implementation complexity that the home function and the local/visited function in the service authorization in the related art may generate unnecessary signaling or the UE re-acquires the authorization information, an effective solution is not proposed at present.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method for D2D service authorization and a near field communication server, so as to solve the problem in the related art that unnecessary signaling is generated by a home run function and a local/visited run function in the service authorization.
In order to solve the above technical problem, the present invention provides a method for device-to-device D2D service authorization, including:
receiving a service authorization request message of a terminal; determining a public land mobile network authorized to time out;
and obtaining authorization information from a local/visiting near field communication server corresponding to the public land mobile network with overtime authorization, and returning the authorization information to the terminal.
Further, the method also has the following characteristics:
the service authorization request message includes: information of a public land mobile network which has authorized timeout or a service authorization request reason, wherein the service authorization request reason comprises information for indicating that the public land mobile network is reinitiated due to the timeout of the authorization;
and the home short-range communication server determines the public land mobile network with the authorization timeout through the service authorization request message.
Further, the method also has the following characteristics:
the authorization information includes: the updated public land mobile network for the D2D service and its corresponding grant validity time.
Further, the method also has the following characteristics:
the authorization information includes: indication information for indicating that the other authorization information of the terminal is still valid.
In order to solve the above problem, the present invention further provides a near field communication server as a home near field communication server, including:
a determining module, configured to receive a service authorization request message from a terminal, and determine a public land mobile network with an overtime authorization;
an obtaining module, configured to obtain authorization information from a local/visited near field communication server corresponding to the public land mobile network with the overtime authorization; and returning the authorization information to the terminal.
Further, the near field communication server has the following characteristics:
the service authorization request message includes: information of a public land mobile network which has authorized timeout or a service authorization request reason, wherein the service authorization request reason comprises information for indicating that the public land mobile network is reinitiated due to the timeout of the authorization;
the determining module determines the public land mobile network with overtime authorization through the service authorization request message.
Further, the near field communication server has the following characteristics:
the obtaining module obtains the authorization information including: the updated public land mobile network for the D2D service and its corresponding grant validity time.
Further, the near field communication server has the following characteristics:
the obtaining module obtains the authorization information including: indication information for indicating that the other authorization information of the terminal is still valid.
In order to solve the above problem, the present invention further provides a device-to-device D2D service authorization method, including:
after sending a service authorization request message to a home near field communication server, a terminal receives authorization information returned by the home near field communication server, wherein the authorization information comprises: the public land mobile network of the D2D service to be updated and the corresponding authorization effective time;
and the terminal only updates the public land mobile network of the D2D service to be updated and the corresponding authorization effective time according to the authorization information.
Further, the method also has the following characteristics:
the authorization information further includes: indication information for indicating that the other authorization information of the terminal is still valid,
and the terminal also reserves other effective authorization information according to the authorization information.
In order to solve the above problem, the present invention further provides a terminal, including:
a transceiver module, configured to send a service authorization request message to a home proximity communication server, and receive authorization information returned by the home proximity communication server, where the authorization information includes: the device to be updated is valid for the public land mobile network of the device D2D service and its corresponding authorization;
and the updating module is used for updating only the public land mobile network of the D2D service to be updated and the corresponding authorization valid time according to the authorization information.
Further, the terminal also has the following characteristics:
the receiving and sending module receives the authorization information and also comprises indication information used for indicating that other authorization information of the terminal is still valid,
the updating module is also used for reserving other effective authorization information according to the authorization information.
In summary, the present invention provides a method for D2D service authorization and a near field communication server, which can solve the problem in the related art that unnecessary signaling is generated in the home function and the local/visited function in the service authorization, and can also solve the problem of complexity in the implementation of UE to reacquire the authorization information.
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 application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic diagram of a D2D architecture according to the related art and related to 3 GPP;
fig. 2 is a diagram illustrating a D2D service authorization process according to the related art;
fig. 3 is a schematic diagram of a D2D service authorization process according to a first embodiment of the present invention;
fig. 4 is a schematic diagram of a D2D service authorization process according to a second embodiment of the present invention;
FIG. 5 is a diagram of a near field communication server according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
In a first embodiment, in this embodiment, a method for a D2D service authorization process is provided, where a UE carries PLMN information with an authorization timeout in a service authorization request message, a home Prose function obtains authorization information and authorization time from a Prose function corresponding to the PLMN with the authorization timeout, and the home Prose function returns PLMN authorization information and authorization time corresponding to the authorization timeout to the UE, and returns an indication that other PLMN authorization information is still valid. Fig. 3 is a flowchart according to a first embodiment of the present invention, and as shown in fig. 3, the method includes the following steps:
step S302, the connection between the terminal and the PDN GW is established, and after the IP address of the user is obtained from the PDN GW, the service authorization request message is sent to the home near field communication server.
The terminal inquires the corresponding IP address through DNS according to the FQDN of the home near field communication server, and then communicates with the address. The FQDN of the home nfc server may be statically configured in the terminal or may be derived from the home PLMN ID. The IP address of the home near field communication server may also be configured in the terminal.
The service authorization request message contains the PLMN information where the user currently resides and the user identification IMSI. The authorization message can also carry overtime authorized PLMN information;
step S304, the home short-distance communication server obtains the authorization information and the effective time of authorization from the corresponding local/visit short-distance communication server according to the obtained PLMN which is overtime.
And step S306, the local/visiting near field communication server returns an authorization response and returns the effective time of authorization.
Step S308, according to the user subscription information and the local configuration, the home near field communication server returns the D2D authorization information of the user, wherein the authorization information comprises the following information: the updated PLMNs of the D2D service and the authorization validity time corresponding to each PLMN may also carry an indication that other authorization information is still valid.
After receiving the authorization information, the UE updates only the authorization information part needing to be updated, starts a related PLMN timer, and keeps other effective authorization information.
In the second embodiment, in this embodiment, a method for a D2D service authorization process is provided, where if the UE does not carry the PLMN information with authorization timeout in the service authorization request message, the home process function may determine which PLMN authorization information is timeout according to a timer started for each PLMN authorization information by the home process function itself; after determining which PLMN authorization information is overtime, the home base function requests authorization information from the base function of the corresponding PLMN, and returns the authorization information to the UE. Fig. 4 is a flowchart according to a second embodiment of the present invention, and as shown in fig. 4, the method includes the following steps:
step S402, the connection is established between the terminal and PDN GW, and after the IP address of the user is obtained from the PDN GW, the service authorization request message is sent to the home near field communication server.
The terminal inquires the corresponding IP address through DNS according to the FQDN of the home near field communication server, and then communicates with the address. The FQDN of the home nfc server may be statically configured in the terminal or may be derived from the home PLMN ID. The IP address of the home near field communication server may also be configured in the terminal. The service authorization request message contains the PLMN information and the user identification IMSI where the user currently resides. The authorization message may also carry a service authorization request reason, where the request reason may be used to indicate that the authorization message is re-initiated when the certain PLMN authorization message is overtime or because the UE moves to a new resident PLMN;
step S404, the home near field communication server can analyze whether the UE moves to a new resident PLMN or whether a certain PLMN authorization information is overtime according to the acquired PLMN information currently resident by the user and the service authorization request reason, and if the UE moves to the new resident PLMN, the local/visited PLMN list is acquired again; step S406, if the UE moves to a new resident PLMN, the home proxy function acquires authorization information (the authorization information includes the effective time of authorization) from the corresponding local/visit near field communication server; if the authorization information of a certain PLMN is overtime, the home prosection only requests the authorization information from the prosection corresponding to the overtime PLMN;
and step S408, the local/visiting near field communication server returns an authorization response and returns the effective time of authorization.
Step S410, according to the user subscription information and local configuration, the home nfc server returns the D2D authorization information of the user, where the authorization information includes information: the updated PLMNs of the D2D service and the authorization validity time corresponding to each PLMN may also carry an indication that other authorization information is still valid. After receiving the authorization information, the UE updates only the authorization information part needing to be updated and starts a related PLMN timer.
Fig. 5 is a schematic diagram of a near field communication server according to an embodiment of the present invention, and as shown in fig. 5, the near field communication server of this embodiment as a home near field communication server includes:
the determining module is used for determining the public land mobile network with overtime authorization after receiving the service authorization request message of the terminal;
an obtaining module, configured to obtain authorization information from a local/visited near field communication server corresponding to the public land mobile network with the overtime authorization; and returning the authorization information to the terminal.
In a preferred embodiment, the service authorization request message includes: information of a public land mobile network which has authorized timeout or a service authorization request reason, wherein the service authorization request reason comprises information for indicating that the public land mobile network is reinitiated due to the timeout of the authorization;
the determining module determines the public land mobile network with overtime authorization through the service authorization request message.
Fig. 6 is a schematic diagram of a terminal according to an embodiment of the present invention, and as shown in fig. 6, the terminal according to the embodiment includes:
a transceiver module, configured to send a service authorization request message to a home proximity communication server, and receive authorization information returned by the home proximity communication server, where the authorization information includes: the device to be updated is valid for the public land mobile network of the device D2D service and its corresponding authorization;
and the updating module is used for updating only the public land mobile network of the D2D service to be updated and the corresponding authorization valid time according to the authorization information.
In a preferred embodiment, the transceiver module further includes, in the received authorization information, indication information for indicating that the other authorization information of the terminal is still valid,
the updating module is also used for reserving other effective authorization information according to the authorization information.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.
The foregoing is only a preferred embodiment of the present invention, and naturally there are many other embodiments of the present invention, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the scope of the appended claims.

Claims (12)

1. A method of device-to-device D2D service authorization, comprising:
receiving a service authorization request message of a terminal; determining a public land mobile network authorized to time out;
and obtaining authorization information from a local/visiting near field communication server corresponding to the public land mobile network with overtime authorization, and returning the authorization information to the terminal.
2. The method of claim 1, wherein:
the service authorization request message includes: information of a public land mobile network which has authorized timeout or a service authorization request reason, wherein the service authorization request reason comprises information for indicating that the public land mobile network is reinitiated due to the timeout of the authorization;
and the home short-range communication server determines the public land mobile network with the authorization timeout through the service authorization request message.
3. The method of claim 1 or 2, wherein:
the authorization information includes: the updated public land mobile network for the D2D service and its corresponding grant validity time.
4. The method of claim 1 or 2, wherein:
the authorization information includes: indication information for indicating that the other authorization information of the terminal is still valid.
5. A near field communication server as a home near field communication server, comprising:
a determining module, configured to receive a service authorization request message from a terminal, and determine a public land mobile network with an overtime authorization;
an obtaining module, configured to obtain authorization information from a local/visited near field communication server corresponding to the public land mobile network with the overtime authorization; and returning the authorization information to the terminal.
6. The near field communication server of claim 5, wherein:
the service authorization request message includes: information of a public land mobile network which has authorized timeout or a service authorization request reason, wherein the service authorization request reason comprises information for indicating that the public land mobile network is reinitiated due to the timeout of the authorization;
the determining module determines the public land mobile network with overtime authorization through the service authorization request message.
7. The near field communication server according to claim 5 or 6, wherein:
the obtaining module obtains the authorization information including: the updated public land mobile network for the D2D service and its corresponding grant validity time.
8. The near field communication server according to claim 5 or 6, wherein:
the obtaining module obtains the authorization information including: indication information for indicating that the other authorization information of the terminal is still valid.
9. A method of device-to-device D2D service authorization, comprising:
after sending a service authorization request message to a home near field communication server, a terminal receives authorization information returned by the home near field communication server, wherein the authorization information comprises: the public land mobile network of the D2D service to be updated and the corresponding authorization effective time; the public land mobile network of the D2D service to be updated is the public land mobile network with overtime authorization;
and the terminal only updates the public land mobile network of the D2D service to be updated and the corresponding authorization effective time according to the authorization information.
10. The method of claim 9,
the authorization information further includes: indication information for indicating that the other authorization information of the terminal is still valid,
and the terminal also reserves other effective authorization information according to the authorization information.
11. A terminal, comprising:
a transceiver module, configured to send a service authorization request message to a home proximity communication server, and receive authorization information returned by the home proximity communication server, where the authorization information includes: the device to be updated is valid for the public land mobile network of the device D2D service and its corresponding authorization; the public land mobile network of the D2D service to be updated is the public land mobile network with overtime authorization;
and the updating module is used for updating only the public land mobile network of the D2D service to be updated and the corresponding authorization valid time according to the authorization information.
12. The terminal of claim 11,
the receiving and sending module receives the authorization information and also comprises indication information used for indicating that other authorization information of the terminal is still valid,
the updating module is also used for reserving other effective authorization information according to the authorization information.
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