WO2017071568A1

WO2017071568A1 - Proximity-based service discovery method, system and device

Info

Publication number: WO2017071568A1
Application number: PCT/CN2016/103288
Authority: WO
Inventors: 卢飞; 朱进国
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-10-26
Filing date: 2016-10-25
Publication date: 2017-05-04
Also published as: CN106612489A

Abstract

Provided in the present invention are a proximity-based service discovery method, system and device, the method comprising: a home proximity-based service function (PF) of a broadcast terminal (UE A) detects whether all of monitoring terminals (UE Ms) stop monitoring for proximity-based service (ProSe) restrictive coding of the UE A; if all of the UE Ms stop monitoring for the ProSe restrictive coding, the home PF of the UE A instructs the UE A to stop broadcasting the ProSe restrictive coding. The present invention solves the problem of radio resource waste at a broadcast terminal end, improves the utilization rate of radio resources and extends the battery life of the broadcast terminal.

Description

Method, system and device for discovering short-distance communication

Technical field

The present invention relates to the field of communications, and in particular to a method, system and apparatus for discovering short-range communications.

Background technique

Direct communication between devices in the vicinity using Device to Device (D2D for short) can bring many benefits to the terminal, such as higher speed, lower latency and lower power consumption, and greatly improved. The wireless resource efficiency of the operator, the D2D Relay mode is beneficial to the operator to improve the wireless coverage; for the application, the neighboring information in the D2D communication process can be used to develop a more attractive new service. The Public Safety system can also use D2D technology to enable communication between terminals without wireless coverage.

FIG. 1 is a schematic diagram of a D2D architecture related to 3GPP according to the related art. As shown in FIG. 1, the functions of the key network elements are as follows:

Terminal: User equipment (User Equipment, UE for short) is used to support the direct discovery of the other party through the air interface between the terminal and the terminal, and does not need to communicate directly through the network.

The core network gateway, also called the Packet Data Network Gateway (PGW), is configured to provide the access point for the terminal to access the PDN network. The main functions include assigning an IP address to the terminal and sending the terminal up. The data packet is forwarded to the corresponding PDN network through IP, and the data packet sent by the PDN network is mapped to different bearers according to different flows, and then sent to the terminal.

The Home Subscriber Server (HSS) is located on the home network. The main function is to provide subscription information and authentication information for users and applications.

Proximity-based service (ProSe Function, abbreviated as PF). The server is located outside the PGW. The main functions include D2D service authorization, and temporary code is allocated for terminal broadcast for applications requested by the terminal. Assist in D2D discovery and billing functions. Currently, a public land mobile network (PLMN) only deploys a short-range communication server.

FIG. 2 is a schematic diagram of a ProSe service discovery authorization process according to a D2D terminal in the related art. As shown in FIG. 2, the process includes the following steps:

In step S201, the broadcast UE (Announcing UE, abbreviated as UE A) first obtains the restricted ProSe from the ProSe application server (Application Server, AS for short) using the ProSe Discovery UE Identity (PDUID) obtained in the authentication process. Restricted ProSe Application User Identity (RPAUID); the ProSe AS stores the binding relationship between the PDUID and the RPAUID.

Step S202: If the UE A is authorized to use the broadcast service in the currently camped PLMN, the UE A establishes a secure connection with the home PF; the UE A sends a broadcast discovery request message to the home PF, where the message carries the RAPUID, the IMSI, the application identifier, and the message Discovery Entry ID, discovery type, broadcast type, where the discovery type is set to "restricted discovery", and if the application requested by the UE requires "required broadcast", the broadcast type is set to "required broadcast";

Step S203: The home PF checks whether the UE is authorized to use the application according to the application identifier. If the home PF does not have the context of the corresponding UE, the home PF needs to obtain the authentication information from the HSS discovery authentication request message.

Step S204, the HSS returns an authentication discovery response message to the home PF, where the message carries the authentication information and the PLMN identity that the user resides in; the authentication information includes a PDU ID and a PLMN list that can use the ProSe service;

Step S205: The home PF acquires an application server address according to the application identifier, and sends an authentication request to the application server, where the message carries a RPAUID, a request type, where the request type is set to “restricted discovery/broadcast”;

Step S206, the application server returns an authentication response message to the home PF, the message carries a PDUID, a response type, where the response type is set to "restricted discovery/broadcast acknowledgement"; the home PF checks whether the PDUID corresponds to the UE A;

Step S207: The home PF returns a broadcast discovery response message to the UE A, where the message carries a ProSe Restricted Code and a valid duration, and the entry identifier is found; wherein the ProSe restriction code is corresponding to the RPAUID; if the home PF authorization allows the UE to use "There is a demand broadcast", the home PF does not return a ProSe Restricted Code to the UE, but returns a broadcast permission indication to the UE;

Step S208: The monitoring UE (Monitoring UE, referred to as UE M) first obtains the ProSe application user identifier (ProSe Discovery UE Identity, PDUID for short), and obtains the ProSe application user identifier from the ProSe application server (Application Server). (Restricted ProSe Application User Identity, referred to as RPAUID); the ProSe AS stores the binding relationship between the PDUID and the RPAUID; and the UE M needs to obtain the list of the discovery friend identifier (target RPAUID) of the application layer;

Step S209: If the UE M is authorized to use the monitoring service, the UE M establishes a secure connection with the home PF-M; the UE M sends a monitoring discovery request message to the home PF-M, where the message carries the RAPUID, the IMSI, the application identifier, and the discovery entry identifier (Discovery) Entry ID), discovery type, application layer container, where the discovery type is set to "restricted discovery", and the application layer container carries the target RPAUID;

Step S210: The home PF M checks whether the UE is authorized to use the application according to the application identifier. If the home PF M does not have the context of the corresponding UE, the home PF M needs to obtain the authentication information from the HSS discovery authentication request message.

Step S211, the HSS returns an authentication discovery response message to the home PF M, where the message carries the authentication information and the PLMN identity where the user resides; the authentication information includes a PDU ID and a PLMN list that can use the ProSe service;

Step S212: The home PF M acquires an application server address according to the application identifier, and sends an authentication request to the application server, where the message carries an RPAUID, a request type, and an application layer container, where the request type is set to “restricted discovery/listening”;

Step S213, the application server returns an authentication response message to the home PF M, where the message carries the PDU ID, the response type, the target RPAUID and the target PDUID pair, wherein the response type is set to "restricted discovery/listening confirmation"; the home PF checks whether the PDUID corresponds to UE M;

Step S214, the home PF M finds the corresponding corresponding to the PLMN identifier in the target PDUID acquired in step S213. PF A, and send a listening request to the corresponding PF A, the message carrying the RPAUID of the UE M, the IMSI of the UE M, the target RPAUID (that is, the RPAUID of the UE A), the target PDU ID (that is, the PDU ID of the UE A), and the application identifier ;

Step S215: The home PF A obtains a valid ProSe Restricted Code, PF A according to the destination RPAUID, and verifies whether the RPAUID and the target RPAUID (ie, UE A and UE M) are allowed to limit discovery; the home PF A returns the monitoring to the home PF M. In response to the message, the message carries the ProSe Restricted Code and the effective duration; the home PF A needs to store the PDU ID of the listening UE M in the context of the broadcast UE A;

Step S216, after the home PF M obtains the ProSe Restricted Code and the valid duration, the PDU ID of the UE A, the RPAUID of the UE A, the ProSe Restricted Code and the effective duration, and the application identifier are stored in the context of the UE M. The attribution PFM is valid according to the ProSe Restricted Code. The time interval is used to allocate a discovery filter, and the filter includes a time to live (Time to Live, TTL for short), and returns a monitoring discovery response message to the UE M. The message carries a discovery filter, an item identifier, and a target RPAUID.

Step S217, if no valid ProSe Restricted Code is allocated in step S207, but a broadcast permission indication is returned; after receiving step S214, the home PF A considers that there is already an application for monitoring the UE request, and the home PF A to UE A The visited PF C corresponding to the resident PLMN C sends a broadcast authorization request message, and the authorization request message carries the RPAUID, the application identifier, the ProSe Restricted Code, the effective duration, the IMSI of the UE A, and the entry identifier.

Step S218, the visited PF C returns a broadcast authorization confirmation message to the home PF A;

Step S219: The home PF A sends a broadcast announcement request message to the UE A, and the message carries the ProSe Restricted Code, and the entry identifier is found.

Step S220, UE A returns a broadcast announcement response message to the home PF A;

After that, terminal A can broadcast using ProSe Restricted Code, and terminal M can also listen to ProSe Restricted Code.

It can be seen from the above steps that when the listening terminal M no longer listens to the ProSe Restricted Code, the broadcast terminal A still needs to broadcast all the time before the effective timer expires in step S207, which causes the wireless of the broadcast terminal A to some extent. The resource is wasted, and the battery life of the broadcast terminal A is also reduced.

In view of the problem of waste of radio resources of broadcast terminals in related art, an effective solution has not been proposed yet.

Summary of the invention

The present invention provides a method, system and apparatus for discovering short-range communication to at least solve the problem of waste of radio resources of a broadcast terminal in the related art.

According to an aspect of the present invention, a method for discovering short-range communication is provided, including: the home short-range communication server PF of the broadcast terminal UE A detects whether all the listening terminals UE M stop listening to the short-range communication ProSe restriction of the UE A. Coding; in case all UE M stops listening to ProSe restriction coding, the home PF of UE A informs UE A to stop broadcasting ProSe restriction coding.

In the embodiment of the present invention, after the home PF of the UE A notifies the UE A to stop the broadcast ProSe restriction coding, the method further includes: when the UE M requests to monitor the ProSe restriction coding of the UE A, the home PF of the UE A notifies the UE A to continue to broadcast the ProSe. Limit the encoding.

In the embodiment of the present invention, before the home proximity communication server PF of the UE A detects whether all the listening terminals UE M stop listening to the proximity communication ProSe restriction coding of the UE A, the method further includes: receiving, by the home PF of the UE A, the UE The listening request message sent by the PF of the M, wherein the listening request message carries the valid duration of the listening request message; wherein, when the valid duration is 0, the UE M is instructed to stop listening to the ProSe restriction encoding.

In the embodiment of the present invention, in the case of at least one of the following, the monitoring request message sent by the home PF of the UE M carries the valid duration: the timer of the UE M is 0; the timer of the home PF of the UE M times out, and The home PF of the UE M does not receive the interception request message retransmitted by the UE M.

In the embodiment of the present invention, the home short-range communication server PF of the broadcast terminal UE A detects whether all the listening terminals UE M stop listening to the UE A short-range communication ProSe restriction coding, including: the home PF of the UE A is based on the context of the UE A. The identifiers of all the UEs M and the effective duration, determine whether all UEs M stop listening to the ProSe restriction coding of UE A; the effective duration in the interception request message sent by the home PF of the UE M indicated by the identifier of each UE M is When 0, all UEs M stop listening to UE A's ProSe restriction code.

In the embodiment of the present invention, before the home short-range communication server PF of the broadcast terminal UE A detects whether all the listening terminals UE M stop listening to the proximity communication ProSe restriction coding of the UE A, the method further includes: the home PF of the UE A Receiving the interception request message sent by the home PF of the UE M, where the interception request message carries the location information of the UE M; the home PF of the UE A receives the authorization update request message sent by the application server, where the authorization update request message carries the UE A Location information; UE A's home PF detects whether all UEs M stop listening to UE A's short-range communication ProSe restriction coding: UE A's home PF judges all according to UE A's location information and all UE M location information Whether UE M has moved out of the maximum broadcast range of UE A; when all UEs M move out of the maximum broadcast range of UE A, all UEs M stop listening to UE A's ProSe restriction coding.

In the embodiment of the present invention, the home PF of the UE A notifies the UE A to stop broadcasting the ProSe restriction coding, and the home PF of the UE A sends a broadcast stop request message to the UE A, where the broadcast stop request message carries the indication that the UE A does not The UE M is listening to the indication information of the ProSe restriction coding.

In the embodiment of the present invention, before the home PF of the UE A sends a broadcast stop request message to the UE A, the method further includes: the home PF of the UE A sends a broadcast to the visited PF corresponding to the public land mobile network PLMN where the UE A resides. And an authorization request message, where the broadcast authorization request message carries indication information indicating that the UE A will stop broadcasting the ProSe restriction coding; the home PF of the UE A receives the broadcast authorization confirmation message returned by the visited PF.

In the embodiment of the present invention, after the home PF of the UE A sends the broadcast stop request message to the UE A, the method further includes: the home PF of the UE A receives the broadcast stop response message returned by the UE A, where the broadcast stop response message is used to indicate UE A has stopped broadcasting ProSe restriction coding.

According to another aspect of the present invention, a method for discovering short-range communication is provided, including: receiving a broadcast terminal UE A And receiving, by the UE, a notification message sent by the proximity communication server PF, where the notification message is a message sent by the home PF if all the listening terminals UE M stop listening to the ProSe restriction encoding; the UE A according to the notification The indication of the message stops broadcasting ProSe restriction encoding.

In the embodiment of the present invention, in at least one of the following cases, the broadcast terminal UE A receives the notification message sent by the home proximity communication server PF of the UE A: all UE M timers are set to 0; all UE M's The timer of the home PF expires, and all the home PFs of the UE M do not receive all the listening request messages retransmitted by the UE M; all the UEs M move out of the maximum broadcast range of the UE A.

According to another aspect of the present invention, a discovery system for short-range communication is provided. The system includes: a broadcast terminal UE A, a home short-range communication server PF of UE A, a listening terminal UE M, and a home PF of UE A, which is set to Detecting whether all UE M stops listening to UE A's ProSe restriction encoding; UE A, is set to stop broadcasting ProSe restriction if UE A's home PF detects that all UE M stops listening to ProSe restriction coding coding.

In the embodiment of the present invention, the system further includes: a home PF of the UE M, where the home PF of the UE M is configured to send a listen request message to the home PF of the UE A, where the intercept request message carries the interception request message. The effective duration; wherein, when the valid duration is 0, the UE M is instructed to stop listening to the ProSe restriction encoding.

In the embodiment of the present invention, the home PF of the UE A is further configured to determine, according to the identifiers of all the UEs M in the context of the UE A, and the effective duration, whether all the UEs M stop listening to the ProSe restriction coding of the UE A; When the effective duration in the interception request message sent by the home PF of the UE M indicated by the identifier of the UE M is 0, all UEs M stop listening to the ProSe restriction coding of UE A.

In the embodiment of the present invention, the system further includes: a home PF of the UE M, and a home PF of the UE M, configured to send a listening request message to the home PF of the UE A, where the interception request message carries the location information of the UE M; The home PF of the UE A is further configured to receive an authorization update request message sent by the application server, where the authorization update request message carries the location information of the UE A; and determine all the information according to the location information of the UE A and the location information of all the UEs Whether UE M has moved out of the maximum broadcast range of UE A; when all UEs M move out of the maximum broadcast range of UE A, all UEs M stop listening to UE A's ProSe restriction coding.

According to another aspect of the present invention, a discovery apparatus for short-range communication is provided. The apparatus is applied to a home proximity communication server PF of a broadcast terminal UE A. The apparatus includes: a detection module configured to detect whether all of the interception terminals UE M are Both stop listening to UE A short-range communication ProSe restriction coding; the first notification module is configured to notify UE A to stop broadcasting ProSe restriction coding if all UEs M stop listening for ProSe restriction coding.

In the embodiment of the present invention, the apparatus further includes: a second notification module, configured to notify the UE A to continue to broadcast the ProSe restriction coding when the UE M requests to monitor the ProSe restriction coding of the UE A.

In the embodiment of the present invention, the device further includes: a first receiving module, configured to receive a monitoring request message sent by the home PF of the UE M, where the monitoring request message carries a valid duration of the monitoring request message; wherein, the effective duration When 0, it indicates that UE M stops listening to ProSe restriction coding.

In the embodiment of the present invention, in at least one of the following cases, in the interception request message sent by the home PF of the UE M Carrying a valid duration: The timer of the UE M is 0; the timer of the home PF of the UE M times out, and the home PF of the UE M does not receive the interception request message retransmitted by the UE M.

In the embodiment of the present invention, the detecting module is further configured to determine, according to the identifiers of all the UEs M in the context of the UE A, and the effective duration, whether all the UEs M stop listening to the ProSe restriction coding of the UE A; wherein, each UE M When the valid duration in the interception request message sent by the home PF of the UE M indicated by the identifier is 0, all UEs M stop listening to the ProSe restriction coding of UE A.

In the embodiment of the present invention, the device further includes: a second receiving module, configured to receive a listening request message sent by the home PF of the UE M, where the intercept request message carries the location information of the UE M; and receives the authorization sent by the application server And an update request message, where the authorization update request message carries the location information of the UE A. The detecting module is further configured to determine, according to the location information of the UE A and the location information of all the UEs M, whether all UE M has moved out of the maximum broadcast of the UE A. Range; wherein, when all UEs M move out of the maximum broadcast range of UE A, all UEs M stop listening to UE A's ProSe restriction coding.

In the embodiment of the present invention, the first notification module is further configured to send a broadcast stop request message to the UE A, where the broadcast stop request message carries indication information for indicating that the UE A does not have the UE M listening for ProSe restriction coding.

In the embodiment of the present invention, the device further includes: a sending module, configured to send a broadcast authorization request message to the visited PF corresponding to the public land mobile network PLMN where the UE A resides, where the broadcast authorization request message carries the indication The UE A will stop broadcasting the indication information of the ProSe restriction coding; the third receiving module is configured to receive the broadcast authorization confirmation message returned by the visited PF.

In an embodiment of the present invention, the apparatus further includes: a fourth receiving module, configured to receive a broadcast stop response message returned by the UE A, where the broadcast stop response message is used to indicate that the UE A has stopped broadcasting the ProSe restriction code.

According to another aspect of the present invention, a discovery device for short-range communication is provided. The device is located in a broadcast terminal UE A. The device includes: a receiving module, configured to receive a notification message sent by the home proximity communication server PF of the UE A, The notification message is a message that is sent by the home PF when all the listening terminals UE M stop listening to the proximity communication ProSe restriction coding; the stopping module is configured to stop broadcasting the ProSe restriction coding according to the indication of the notification message.

In the embodiment of the present invention, in at least one of the following cases, the receiving module receives the notification message sent by the home PF of the home proximity communication server of the UE A: all UE M timers are set to 0; all UE M affiliations The timer of the PF expires, and all the home PFs of the UE M do not receive all the listening request messages retransmitted by the UE M; all the UEs M remove the maximum broadcast range of the UE A.

Another embodiment of the present invention provides a computer storage medium storing execution instructions for performing the method in the above embodiments.

With the present invention, in the case that all UEs M stop listening to ProSe restriction coding, the home PF of UE A notifies UE A to stop broadcasting ProSe restriction coding, which solves the problem of waste of radio resources of the broadcast terminal and improves the utilization of radio resources. The rate increases the battery life of the broadcast terminal.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic diagram of a D2D architecture related to 3GPP according to the related art;

2 is a schematic diagram of a ProSe service discovery authorization process according to a D2D terminal in the related art;

3 is a flowchart 1 of a method for discovering short-range communication according to an embodiment of the present invention;

4 is a second flowchart of a method for discovering short-range communication according to an embodiment of the present invention;

FIG. 5 is a third flowchart of a method for discovering short-range communication according to an embodiment of the present invention; FIG.

6 is a flowchart 4 of a method for discovering short-range communication according to an embodiment of the present invention;

7 is a flowchart 5 of a method for discovering short-range communication according to an embodiment of the present invention;

8 is a flowchart 6 of a method for discovering short-range communication according to an embodiment of the present invention;

9 is a first schematic diagram of a discovery system for short-range communication according to an embodiment of the present invention;

10 is a second schematic diagram of a discovery system for short-range communication according to an embodiment of the present invention;

11 is a structural block diagram 1 of a discovery device for short-range communication according to an embodiment of the present invention;

12 is a structural block diagram 2 of a discovery device for short-range communication according to an embodiment of the present invention;

13 is a structural block diagram 3 of a discovery device for short-range communication according to an embodiment of the present invention;

14 is a structural block diagram 4 of a discovery device for short-range communication according to an embodiment of the present invention;

15 is a block diagram 5 of a structure of a discovery device for short-range communication according to an embodiment of the present invention;

16 is a structural block diagram 6 of a discovery device for short-range communication according to an embodiment of the present invention;

17 is a flow chart 1 of a method for discovering short-range communication according to a preferred embodiment of the present invention;

18 is a second schematic diagram of a method for discovering short-range communication according to a preferred embodiment of the present invention;

19 is a third schematic flowchart of a method for discovering short-range communication according to a preferred embodiment of the present invention;

20 is a flow chart 4 of a method for discovering short-range communication in accordance with a preferred embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

In this embodiment, a method for discovering short-range communication is provided. FIG. 3 is a flowchart 1 of a method for discovering short-range communication according to an embodiment of the present invention. As shown in FIG. 3, the process includes the following steps:

Step S302, the home short-range communication server PF of the broadcast terminal UE A detects whether all the listening terminals UE M stop listening to the short-range communication ProSe restriction coding of the UE A;

Step S304, in a case where all UEs M stop listening to ProSe restriction coding, the home PF of UE A notifies UE A to stop broadcasting ProSe restriction coding.

Through the above steps, in the case that all the UEs M stop listening to the ProSe restriction coding, the home PF of the UE A notifies the UE A to stop broadcasting the ProSe restriction coding, so that when the interception terminal UE M no longer listens to the ProSe restriction coding, The broadcast terminal UE A does not broadcast all the time, thereby solving the problem of waste of radio resources of the broadcast terminal, improving the utilization rate of the radio resources, and prolonging the battery usage time of the broadcast terminal.

In an embodiment of the present invention, FIG. 4 is a second flowchart of a method for discovering short-range communication according to an embodiment of the present invention. As shown in FIG. 4, after the step S304, the method further includes:

Step S402, when the UE M requests to monitor the ProSe restriction coding of the UE A, the home PF of the UE A notifies the UE A to continue to broadcast the ProSe restriction coding. That is, after UE A temporarily stops broadcasting ProSe restriction coding, if there is a listening terminal UE M continuing to request ProSe restriction coding of the broadcast terminal UE A, the home PF of UE A notifies UE A to continue broadcasting ProSe restriction coding.

In an embodiment of the present invention, FIG. 5 is a flowchart of a method for discovering short-range communication according to an embodiment of the present invention. As shown in FIG. 5, before the step S302, the method further includes:

In step S502, the home PF of the UE A receives the interception request message sent by the home PF of the UE M, where the intercept request message carries the valid duration of the interception request message; wherein, when the valid duration is 0, the UE M is instructed to stop listening to the ProSe. Limit the encoding.

It should be noted that the effective duration can be set by a timer, or can be set by other methods, such as directly assigning an effective duration. In at least one of the following cases, the listening request message sent by the home PF of the UE M carries the valid duration: the timer of the UE M is 0; the timer of the home PF of the UE M times out, and the home PF of the UE M does not Received a listen request message retransmitted by the UE M. That is, if the timer of the UE M is 0 or the timer of the home PF of the UE M times out, and the home PF of the UE M does not receive the interception request message retransmitted by the UE M, the home PF of the UE A needs to be sent. The active duration carried in the interception request message is 0 to notify the home PF of the UE B, and the UE A needs to stop broadcasting. In an embodiment of the present invention, the step S302 can be implemented in the following manner: the home PF of the UE A determines whether all UEs M stop listening to UE A according to the identifiers of all UEs M in the context of UE A and the effective duration. ProSe restriction coding; when the effective duration in the interception request message sent by the home PF of the UE M indicated by the identifier of each UE M is 0, all UEs M stop listening to the ProSe restriction coding of UE A.

In an embodiment of the present invention, FIG. 6 is a flowchart of a method for discovering short-range communication according to an embodiment of the present invention. As shown in FIG. 6, before the step S302, the method further includes:

Step S602, the home PF of the UE A receives the interception request message sent by the home PF of the UE M, where the interception request message carries the location information of the UE M, and the home PF of the UE A receives the authorization update request message sent by the application server, where The authorization update request message carries the location information of UE A.

In an embodiment of the present invention, the step S302 can be implemented in the following manner: the home PF of the UE A determines whether all the UEs M have moved out of the maximum broadcast range of the UE A according to the location information of the UE A and the location information of all the UEs. When all the UEs M move out of the maximum broadcast range of UE A, all UEs M stop listening to the ProSe restriction coding of UE A.

In an embodiment of the present invention, FIG. 7 is a flowchart 5 of a method for discovering short-range communication according to an embodiment of the present invention. As shown in FIG. 7, step S304 may include:

In step S702, the home PF of the UE A sends a broadcast stop request message to the UE A, where the broadcast stop request message carries indication information indicating that the UE A does not have the UE M listening to the ProSe restriction code.

In an embodiment of the present invention, before the step S702, the method further includes: in step S704, the home PF of the UE A sends a broadcast authorization request message to the visited PF corresponding to the public land mobile network PLMN where the UE A resides, The broadcast authorization request message carries the indication information for instructing the UE A to stop broadcasting the ProSe restriction coding. In step S706, the home PF of the UE A receives the broadcast authorization confirmation message returned by the visited PF. After the step S702, the method may further include: in step S708, the home PF of the UE A receives the broadcast stop response message returned by the UE A, where the broadcast stop response message is used to indicate that the UE A has stopped broadcasting the ProSe restriction code.

It should be noted that, after the step S702 is performed, the step S704 is performed again, but the method is not limited thereto. For example, the above step S702 may be performed simultaneously with the step S704.

In this embodiment, a method for discovering short-range communication is also provided. FIG. 8 is a flowchart 6 of a method for discovering short-range communication according to an embodiment of the present invention. As shown in FIG. 8, the process includes the following steps:

Step S802, the broadcast terminal UE A receives the notification message sent by the home PF of the home proximity communication server of the UE A, where the notification message is that the home PF stops monitoring the ProSe restriction code when all the listening terminals UE M stop listening. Message sent;

Step S804, UE A stops broadcasting ProSe restriction coding according to the indication of the notification message.

Through the above steps, in the case that all the UEs M stop listening to the ProSe restriction coding, the UE A stops broadcasting the ProSe restriction coding, and solves the problem of waste of radio resources of the broadcast terminal, and the broadcast terminal UE A in the related art always broadcasts. Compared, the utilization rate of the radio resources of the UE A is improved, and the battery usage time of the broadcast terminal is prolonged.

In an embodiment of the present invention, in at least one of the following cases, the broadcast terminal UE A receives the notification message sent by the home proximity communication server PF of UE A: all UE M timers are set to 0; all UEs The timer of the home PF of the M expires, and all the home PFs of the UE M do not receive all the listening request messages retransmitted by the UE M; All UEs M move out of the maximum broadcast range of UE A.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

In this embodiment, a transmission system for short-range communication is also provided. FIG. 9 is a schematic diagram 1 of a discovery system for short-range communication according to an embodiment of the present invention. As shown in FIG. 9, the system includes: a broadcast terminal UE. A92, UE A's home proximity communication server PF94, listening terminal UE M96;

The home PF 94 of the UE A is set to detect whether all the UEs M96 stop listening to the short-range communication ProSe restriction coding of the UE A92;

The UE A92 is configured to stop broadcasting the ProSe restriction coding if the home PF 94 of the UE A detects that all the UEs M96 stop listening to the ProSe restriction coding.

With the system, in the case that all the UEs M96 stop listening to the ProSe restriction coding, the UE A92 stops broadcasting the ProSe restriction coding, and solves the problem of waste of radio resources of the broadcast terminal, and the broadcast terminal UE A in the related art always broadcasts. Compared, the utilization rate of the radio resources of the UE A is improved, and the battery usage time of the broadcast terminal is prolonged.

In an embodiment of the present invention, FIG. 10 is a schematic diagram 2 of a discovery system for short-range communication according to an embodiment of the present invention. As shown in FIG. 10, the system may further include: a home PF 1002 of the UE M; wherein, the UE M The home PF 1002 is configured to send a listening request message to the home PF 94 of the UE A. The listening request message carries a valid duration of the listening request message. The valid time duration is 0, indicating that the UE M stops listening to the ProSe restriction code. In the embodiment of the present invention, the home PF 94 of the UE A is further configured to determine, according to the identifiers of all the UEs M96 in the context of the UE A92 and the effective duration, whether all the UEs M96 stop listening to the ProSe restriction coding of the UE A92; When the valid duration in the interception request message sent by the home PF 1002 of the UE M indicated by the identifier of the UE M96 is 0, all the UEs M96 stop listening to the ProSe restriction coding of the UE A92.

In an embodiment of the present invention, the home PF 1002 of the UE M is further configured to send a listening request message to the home PF 94 of the UE A. The intercept request message carries the location information of the UE M96; the home PF 94 of the UE A is further And being configured to receive the authorization update request message sent by the application server, where the authorization update request message carries the location information of the UE A92; and determining whether all the UEs M96 have been removed from the UE A92 according to the location information of the UE A92 and the location information of all the UEs M96. The maximum broadcast range; when all UEs M96 move out of the maximum broadcast range of UE A92, all UEs M96 stop listening to the ProSe restriction code of UE A92.

In the present embodiment, a discovery device for short-range communication is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or The implementation of a combination of software and hardware is also possible and conceived.

11 is a structural block diagram of a discovery device for short-range communication according to an embodiment of the present invention. The device is applied to a home proximity communication server PF of a broadcast terminal UE A. As shown in FIG. 11, the device includes:

The detecting module 1102 is configured to detect whether all the listening terminals UE M stop listening to the short-range communication ProSe restriction encoding of the UE A;

The first notification module 1104 is connected to the detection module 1102, and is configured to notify the UE A to stop broadcasting the ProSe restriction coding if all UEs M stop listening to the ProSe restriction coding.

Through the above apparatus, through the detecting module 1102 and the first notification module 1104, in a case where all UEs M stop listening to ProSe restriction coding, the UE A is notified to stop broadcasting ProSe restriction coding, and thus UE A is in all UE M When the ProSe restriction encoding is stopped, the broadcast ProSe restriction encoding is stopped. Furthermore, the problem of waste of radio resources of the broadcast terminal is solved. Compared with the broadcast of the broadcast terminal UE A in the related art, the utilization of the radio resources of the UE A is improved, and the battery usage time of the broadcast terminal is prolonged.

In an embodiment of the present invention, FIG. 12 is a structural block diagram 2 of a discovery device for short-range communication according to an embodiment of the present invention. The device includes, in addition to all the modules shown in FIG.

The second notification module 1202 is connected to the first notification module 1104, and is configured to notify the UE A to continue to broadcast ProSe restriction coding when the UE M requests to monitor the ProSe restriction coding of the UE A. After UE A temporarily stops broadcasting ProSe restriction coding, if there is a listening terminal UE M continuing to request ProSe restriction coding of the broadcast terminal UE A, it is notified that UE A continues to broadcast ProSe restriction coding.

In an embodiment of the present invention, FIG. 13 is a structural block diagram 3 of a discovery device for short-range communication according to an embodiment of the present invention. The device further includes:

The first receiving module 1302 is connected to the detecting module 1102, and is configured to receive the monitoring request message sent by the home PF of the UE M, where the monitoring request message carries the effective duration of the monitoring request message; wherein, when the effective duration is 0 Instruct UE M to stop listening for ProSe restriction coding.

It should be noted that the effective duration can be set by a timer, or can be set by other methods, such as directly assigning an effective duration. In at least one of the following cases, the listening request message sent by the home PF of the UE M carries the valid duration: the timer of the UE M is 0; the timer of the home PF of the UE M times out, and the home PF of the UE M does not Received a listen request message retransmitted by the UE M. That is, if the timer of the UE M is 0 or the timer of the home PF of the UE M times out, and the home PF of the UE M does not receive the interception request message retransmitted by the UE M, the home PF of the UE A needs to be sent. The active duration carried in the interception request message is 0 to notify the home PF of the UE B, and the UE A needs to stop broadcasting.

In the embodiment of the present invention, the detecting module 1102 is further configured to determine, according to the identifiers of all the UEs M in the context of the UE A, and the effective duration, whether all the UEs M stop listening to the ProSe restriction coding of the UE A; When the effective duration in the interception request message sent by the home PF of the UE M indicated by the identifier of the UE M is 0, all UE M stops listening to UE A's ProSe restriction coding.

In an embodiment of the present invention, FIG. 14 is a structural block diagram of a discovery device for short-range communication according to an embodiment of the present invention. The device further includes:

The second receiving module 1402 is connected to the detecting module 1102, and is configured to receive a listening request message sent by the home PF of the UE M, where the intercept request message carries location information of the UE M, and receives an authorization update request message sent by the application server. The authorization update request message carries the location information of the UE A.

The foregoing detection module 1102 is further configured to determine, according to the location information of the UE A and the location information of all the UEs, whether all UEs M have moved out of the maximum broadcast range of the UE A; wherein all the UEs M move out of the maximum broadcast range of the UE A. At this time, all UEs M stop listening to UE A's ProSe restriction coding.

In an embodiment of the present invention, the first notification module 1104 is further configured to send a broadcast stop request message to the UE A, where the broadcast stop request message carries a message indicating that the UE A is not listening to the ProSe restriction code. Instructions.

In the embodiment of the present invention, FIG. 15 is a structural block diagram 5 of a device for discovering short-range communication according to an embodiment of the present invention. As shown in FIG. 15, the device further includes:

The sending module 1502 is connected to the foregoing first notification module 1104, and is configured to send a broadcast authorization request message to the visited PF corresponding to the public land mobile network PLMN where the UE A resides, where the broadcast authorization request message carries the UE for indicating A will stop broadcasting the indication information of the ProSe restriction code;

The third receiving module 1504 is connected to the sending module 1502, and is configured to receive a broadcast authorization confirmation message returned by the visited PF.

The fourth receiving module 1506 is connected to the first notification module 1104, and is configured to receive a broadcast stop response message returned by the UE A, where the broadcast stop response message is used to indicate that the UE A has stopped broadcasting the ProSe restriction code.

In the embodiment of the present invention, a discovery device for short-range communication is also provided. FIG. 16 is a structural block diagram 6 of a discovery device for short-range communication according to an embodiment of the present invention. The device is located in the broadcast terminal UE A, as shown in FIG. 16 . As shown, the device includes:

The receiving module 1602 is configured to receive a notification message sent by the home proximity communication server PF of the UE A, where the notification message is sent by the home PF if all the listening terminals UE M stop listening to the proximity communication ProSe restriction coding. Message

The stopping module 1604 is connected to the receiving module 1602, and is configured to stop broadcasting the ProSe restriction encoding according to the indication of the notification message.

Through the above apparatus, through the receiving module 1602 and the stopping module 1604, when all UEs M stop listening to ProSe restriction coding, the broadcast ProSe restriction coding is stopped, and the problem of waste of radio resources of the broadcasting terminal is solved, and the broadcasting in the related art Compared with the broadcast of the terminal UE A, the utilization of the radio resources of the UE A is improved, and the battery usage time of the broadcast terminal is prolonged.

In the embodiment of the present invention, in at least one of the following cases, the receiving module receives the notification message sent by the home proximity communication server PF of the UE A: all UE M timers are set to 0; all UE M's home PFs The timer expires, and all UE M's home PFs do not receive all UE M retransmitted listening request messages; all UEs M move out of UE A's maximum broadcast range.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.

For a better understanding of the present invention, the embodiments of the present invention are further explained below in conjunction with the preferred embodiments.

The embodiments of the present invention provide a preferred short-range communication discovery method to solve at least the problem of waste of radio resources of a broadcast terminal in the related art. The method includes: the home short-range communication server PF of the broadcast UE detects that all the listening UEs stop listening to the ProSe Restricted Code of the broadcast UE, and the home short-range communication server PF needs to notify the broadcast UE to stop broadcasting (corresponding to FIG. 3 Step S304) in the illustrated embodiment. After the monitoring UE continues to request the ProSe Restricted Code of the broadcast UE, the home proximity communication server needs to notify the listening broadcast UE that the broadcast can continue (equivalent to step S402 in the embodiment shown in FIG. 4).

In a preferred embodiment of the present invention, when the monitoring UE initiates a interception discovery request with a timer of “0”, the home proximity communication server of the monitoring UE needs to notify the broadcast UE of the home proximity communication server, so that the broadcast UE belongs to the short-range communication. The server can then notify the broadcast UE to stop broadcasting.

In a preferred embodiment of the present invention, when the location of the listening UE and the broadcast UE exceeds the maximum range that the broadcast UE can broadcast, the home proximity communication server of the broadcast UE notifies the broadcast UE to stop broadcasting.

In a preferred embodiment of the present invention, when the effective timer of the home proximity communication server of the monitoring UE times out, the listening UE still does not resend the monitoring discovery request, and the home proximity server that listens to the UE needs to notify the broadcast UE of the home proximity server. The home short-range communication server of the broadcast UE notifies the broadcast UE to stop broadcasting.

With the above-described preferred embodiment of the present invention, the home short-range communication server using the broadcast UE detects that all the listening UEs stop listening to the ProSe Restricted Code of the broadcast UE, and the home short-range communication server needs to notify the broadcast UE to stop broadcasting. The invention solves the waste of radio resources of the broadcast terminal in the related art, improves the efficiency of the radio resource, and can advantageously broadcast the power saving of the UE.

In the embodiment of the present invention, a preferred method for short-range communication discovery is also provided, and FIG. 17 is a schematic flowchart 1 of a method for discovering short-range communication according to a preferred embodiment of the present invention. As shown in FIG. Including the following steps:

Step S1701, the home proximity communication server of the broadcast UE detects that all the listening UEs stop listening to the ProSe Restricted Code of the broadcast UE;

Step S1702: The home proximity communication server of the broadcast UE needs to notify the broadcast UE to stop broadcasting;

Step S1703: The listening UE continues to request the ProSe Restricted Code of the broadcast UE, and the home short-range communication server needs to notify the listening broadcast UE that the broadcast can continue.

In the embodiment of the present invention, another preferred method for short-range communication discovery is also provided. FIG. 18 is a second schematic diagram of a method for discovering short-range communication according to a preferred embodiment of the present invention. As shown in FIG. The method includes the following steps:

In step S1801, the UE M sends a monitoring discovery request message to the home PF-M, where the message carries the RAPUID, the IMSI, the application identifier, the Discovery Entry ID, the discovery type, the application layer container, the request validity time, and the discovery type setting. To limit the discovery, the application layer container carries the target RPAUID, and the request valid time is set to "0"; the purpose of request validity time is set to "0" is that the UE is ready to stop listening;

Step S1802: The home PF M acquires an application server address according to the application identifier, and sends an authentication request to the application server, where the message carries the RPAUID, the request type, and the application layer container, where the request type is set to “limit discovery/stop monitoring”;

Step S1803: The application server returns an authentication response message to the home PF M, where the message carries a PDU ID, a response type, a target RPAUID and a target PDUID pair, where the response type is set to “limit discovery/stop monitoring acknowledgement”;

In step S1804, the home PF M finds the PF A corresponding to the PLMN identifier in the target PDU ID obtained in the context stored in the UE M, and sends a listening request to the corresponding PF A, where the message carries the RPAUID of the UE M, and the IMSI of the UE M. , the target RPAUID (that is, the RPAUID of the UE A), the target PDUID (that is, the PDU ID of the UE A), the application identifier, and the effective duration of the request, wherein the effective duration of the request is set to “0”;

Step S1805: The home PF A returns a monitoring response message to the home PF M.

Step S1806: The home PF M deletes the context corresponding to the identifier of the discovery entry, and returns a monitoring discovery response message to the UE M, where the message carries the identifier of the discovery item; the UE releases the resource used for the monitoring;

Step S1807: The home PF A determines, according to all the monitoring UE identifiers in the context of the UE A, that all the listening UEs have requested to stop listening (corresponding to step S302 of the embodiment shown in FIG. 3), and the home PF A resides in the UE A. The visited PF C corresponding to the PLMN C sends a broadcast authorization request message, where the authorization request message carries the discovery item identifier and the request to stop the broadcast indication; wherein the request to stop the broadcast indication is used to indicate that the broadcast UE A will pause the broadcast (corresponding to FIG. 7 Step S704) in the embodiment;

Step S1808, the visited PF C returns a broadcast authorization confirmation message to the home PF A (corresponding to step S706 in the embodiment shown in FIG. 7);

Step S1809: The home PF A sends a broadcast stop request message to the UE A, where the message carries the discovery entry identifier, and stops the broadcast indication, where the stop broadcast indication is used to indicate that the broadcast UE A is temporarily not listening to the UE while monitoring the application, and the broadcast ProSe Restricted Code may be suspended. (Equivalent to step S304 of the embodiment shown in Fig. 3). After the listening UE requests the application again, the home PF A will notify the UE to continue to broadcast the ProSe Restricted Code using steps S217-S220 (corresponding to step S402 of the embodiment shown in FIG. 4).

In step S1810, UE A returns a broadcast stop response message to the home PF A (corresponding to step S708 of the embodiment shown in FIG. 7).

In the embodiment of the present invention, another preferred method for short-range communication discovery is provided. FIG. 19 is a schematic flowchart 3 of a method for discovering short-range communication according to a preferred embodiment of the present invention. As shown in FIG. The method includes the following steps:

In step S1901, the UE M reports the location information to the application server, where the message carries the location information of the UE M, RPAUID;

Step S1902: The application server sends an authorization update request message to the home PF M, where the message carries the RPAUID, the PDUID, and the location information of the UE M.

Step S1903: The home PF M returns an authorization update response message to the application server.

In step S1904, the home PF M finds the PF A corresponding to the PLMN identifier in the target PDU ID obtained in the context stored in the UE M, and sends a listening request to the corresponding PF A, where the message carries the RPAUID of the UE M, and the IMSI of the UE M. , the target RPAUID (that is, the RPAUID of the UE A), the target PDU ID (that is, the PDU ID of the UE A), the application identifier, and the location information of the UE M;

Step S1905: The home PF A returns a monitoring response message to the home PF M.

Step S1906, the UE A reports the location information to the application server, where the message carries the location information of the UE A, RPAUID;

Step S1907: The application server sends an authorization update request message to the home PF A, where the message carries the RPAUID, the PDUID, and the location information of the UE A.

Step S1908, the home PF A returns an authorization update response message to the application server.

Step S1909: The home PF A determines, according to the location information of the UE A and the UE M, that the UE M has moved out of the maximum broadcast range of the UE A (corresponding to step S302 in the embodiment shown in FIG. 3); the home PF A resides in the UE A. The visited PF C corresponding to the PLMN C sends a broadcast authorization request message, where the authorization request message carries the discovery item identifier and the request to stop the broadcast indication; wherein the request to stop the broadcast indication is used to indicate that the broadcast UE A will pause the broadcast (corresponding to FIG. 7 Step S704) in the embodiment.

Step S1910, the visited PF C returns a broadcast authorization confirmation message to the home PF A (corresponding to step S706 in the embodiment shown in FIG. 7);

Step S1911: The home PF A sends a broadcast stop request message to the UE A, where the message carries the discovery item identifier, and stops the broadcast indication, where the stop broadcast indication is used to indicate that the broadcast UE A is temporarily not listening to the UE while monitoring the application, and the broadcast ProSe Restricted Code may be suspended. (Equivalent to step S304 of the embodiment shown in Fig. 3). After the listening UE requests the application again, the home PF A will notify the UE to continue to broadcast the ProSe Restricted Code using steps S217-S220 (corresponding to step S402 of the embodiment shown in FIG. 4).

In step S1912, UE A returns a broadcast stop response message to the home PF A (corresponding to step S708 of the embodiment shown in FIG. 7).

In the embodiment of the present invention, another preferred method for short-range communication discovery is also provided. FIG. 20 is a schematic flowchart diagram 4 of a method for discovering short-range communication according to a preferred embodiment of the present invention. As shown in FIG. The method includes the following steps:

Step S2001: After the TTL that is allocated in step S216 is timed out, the home PF M does not receive the monitoring discovery request message retransmitted by the UE M, and the home PF M according to the target PDUID obtained in the context stored by the UE M is in the PLMN. The identifier finds the corresponding PF A, and sends a listening request to the corresponding PF A, where the message carries the discovery item identifier, and the validity time of the request, wherein the effective duration of the request is set to “0”;

Step S2002, the home PF A returns a monitoring response message to the home PF M.

In step S2003, the home PF A determines that all the listening UEs have requested to stop listening according to all the listening UE identifiers in the context of the UE A (corresponding to step S302 of the embodiment shown in FIG. 3), and the home PF A resides in the UE A. The visited PF C corresponding to the PLMN C sends a broadcast authorization request message, where the authorization request message carries the discovery item identifier and the request to stop the broadcast indication; wherein the request to stop the broadcast indication is used to indicate that the broadcast UE A will pause the broadcast (corresponding to FIG. 7 Step S704) in the embodiment;

Step S2004, the visited PF C returns a broadcast authorization confirmation message to the home PF A (corresponding to step S706 in the embodiment shown in FIG. 7);

In step S2005, the home PF A sends a broadcast stop request message to the UE A, where the message carries the discovery entry identifier, and stops the broadcast indication, wherein the stop broadcast indication is used to indicate that the broadcast UE A is temporarily not listening to the UE while monitoring the application, and the broadcast ProSe Restricted Code may be suspended. (Equivalent to step S304 of the embodiment shown in Fig. 3). After the listening UE requests the application again, the home PF A will notify the UE to continue to broadcast the ProSe Restricted Code using steps S217-S220 (corresponding to step S402 of the embodiment shown in FIG. 4).

In step S2006, UE A returns a broadcast stop response message to the home PF A (corresponding to step S708 of the embodiment shown in FIG. 7).

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

S1, the home short-distance communication server PF of the broadcast terminal UE A detects whether all the listening terminals UE M stop listening to the short-range communication ProSe restriction coding of the UE A;

S2, in a case where all UEs M stop listening to ProSe restriction coding, the home PF of UE A notifies UE A to stop broadcasting ProSe restriction coding.

Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. Perform the steps shown or described, or separate them into individual integrated circuit modules, or make multiple modules or steps into a single The integrated circuit module is implemented. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

As described above, the discovery method, system, and device for short-distance communication provided by the embodiments of the present invention have the following beneficial effects: solving the problem of waste of radio resources of the broadcast terminal, improving the utilization rate of the radio resources, and prolonging the broadcast terminal. The battery is used for a long time.

Claims

A method for discovering short-range communication, including:

The home short-range communication server PF of the broadcast terminal UE A detects whether all the listening terminals UE M stop listening to the short-range communication ProSe restriction coding of the UE A;

In a case where all the UEs M stop listening to the ProSe restriction coding, the home PF of the UE A notifies the UE A to stop broadcasting the ProSe restriction coding.
The method according to claim 1, wherein after the home PF of the UE A notifies the UE A to stop broadcasting the ProSe restriction coding, the method further comprises: requesting, at the UE M, to listen to the UE A. When the ProSe restricts encoding, the home PF of the UE A notifies the UE A to continue broadcasting the ProSe restriction encoding.
The method according to claim 1, wherein before the home proximity communication server PF of the UE A detects whether all the listening terminals UE M stop listening to the Near Field Communication ProSe restriction coding of the UE A, the method further includes The home PF of the UE A receives the interception request message sent by the home PF of the UE M, where the interception request message carries the valid duration of the interception request message; wherein, the valid duration is 0. The UE is instructed to stop listening to the ProSe restriction code.
The method according to claim 3, wherein the valid duration is carried in the interception request message sent by the home PF of the UE M in at least one of the following cases:

The timer of the UE M is 0;

The timer of the home PF of the UE M expires, and the home PF of the UE M does not receive the interception request message retransmitted by the UE M.
The method according to claim 3 or 4, wherein the home short-range communication server home PF of the broadcast terminal UE A detects whether all the listening terminals UE M stop listening to the UE A short-range communication ProSe restriction coding, including:

The home PF of the UE A determines whether all the UEs M stop listening to the ProSe restriction code of the UE A according to the identifiers of all the UEs M in the context of the UE A and the valid duration; When all the UEs in the listening request message sent by the home PF of the UE M indicated by the identifier of the UE M are 0, all the UEs M stop listening to the ProSe restriction coding of the UE A.
The method of claim 1 wherein

Before the home short-range communication server PF of the broadcast terminal UE A detects whether all the listening terminals UE M stop listening to the proximity communication ProSe restriction coding of the UE A, the method further includes: the home PF receiving of the UE A a listening request message sent by the home PF of the UE M, where the listening request message carries the location information of the UE M; the home PF of the UE A receives an authorization update request message sent by the application server, where The authorization update request message carries the location information of the UE A;

The home PF of the UE A detects whether all of the UEs M stop listening to the short-distance communication of the UE A. The ProSe restriction coding includes: the home PF of the UE A determines, according to the location information of the UE A and all the location information of the UE M, whether the all the UE M has moved out of the maximum broadcast of the UE A. a range; wherein, when all the UEs M move out of the maximum broadcast range of the UE A, all the UEs M stop listening to the ProSe restriction coding of the UE A.
The method according to claim 1, wherein the home PF of the UE A notifying the UE A to stop broadcasting the ProSe restriction coding comprises:

The home PF of the UE A sends a broadcast stop request message to the UE A, where the broadcast stop request message carries indication information indicating that the UE A is not listening to the ProSe restriction code. .
The method according to claim 7, wherein before the home PF of the UE A sends a broadcast stop request message to the UE A, the method further includes:

The home PF of the UE A sends a broadcast authorization request message to the visited PF corresponding to the public land mobile network PLMN where the UE A is located, where the broadcast authorization request message carries the indication that the UE A will Stop broadcasting the indication information of the ProSe restriction code;

The home PF of the UE A receives the broadcast authorization confirmation message returned by the visited PF.
The method according to claim 7, wherein after the home PF of the UE A sends a broadcast stop request message to the UE A, the method further includes:

The home PF of the UE A receives the broadcast stop response message returned by the UE A, where the broadcast stop response message is used to indicate that the UE A has stopped broadcasting the ProSe restriction code.
A method for discovering short-range communication, including:

The broadcast terminal UE A receives the notification message sent by the home proximity communication server PF of the UE A, wherein the notification message is that the home PF stops all the listening terminals Pro M in the short-distance communication ProSe restriction coding. Message sent;

The UE A stops broadcasting the ProSe restriction code according to the indication of the notification message.
The method according to claim 10, wherein the broadcast terminal UE A receives the notification message sent by the home proximity communication server PF of the UE A in at least one of the following cases:

All the timers of the UE M are set to 0;

All the timers of the home PF of the UE M are timed out, and all the home PFs of the UE M do not receive all the listening request messages retransmitted by the UE M;

All of the UEs M have moved out of the maximum broadcast range of the UE A.
A discovery system for short-range communication, the system comprising: a broadcast terminal UE A, a close proximity of the UE A Communication server PF, listening terminal UE M;

The home PF of the UE A is set to detect whether all of the UEs M stop listening to the short-range communication ProSe restriction coding of the UE A;

The UE A is configured to stop broadcasting the ProSe restriction coding if the home PF of the UE A detects that all the UEs M stop listening to the ProSe restriction code.
The system of claim 12, wherein the system further comprises: a home PF of the UE M; wherein the home PF of the UE M is configured to send a listen request message to the home PF of the UE A; The listening request message carries the valid duration of the interception request message. When the valid duration is 0, the UE M is instructed to stop listening to the ProSe restriction encoding.
The system according to claim 13, wherein the home PF of the UE A is further configured to determine, according to the identifiers of all UEs M in the context of the UE A, and the valid duration, whether all the UEs M are Stopping the monitoring of the ProSe restriction coding of the UE A; wherein, when the validity time in the interception request message sent by the home PF of the UE M indicated by the identifier of each UE M is 0, all The UE M stops listening to the ProSe restriction coding of the UE A.
The system of claim 12, wherein the system further comprises: a home PF of the UE M;

The home PF of the UE M is configured to send a listening request message to the home PF of the UE A, where the listening request message carries the location information of the UE M.

The home PF of the UE A is further configured to receive an authorization update request message sent by the application server, where the authorization update request message carries the location information of the UE A; and according to the location information of the UE A and all The location information of the UE M determines whether all of the UEs M have moved out of the maximum broadcast range of the UE A; where all the UEs M move out of the maximum broadcast range of the UE A, all The UE M stops listening to the ProSe restriction coding of the UE A.
A discovery device for short-range communication, the device being applied to a home proximity communication server PF of a broadcast terminal UE A, the device comprising:

a detecting module, configured to detect whether all the listening terminals UE M stop listening to the short-range communication ProSe restriction encoding of the UE A;

The first notification module is configured to notify the UE A to stop broadcasting the ProSe restriction coding if all the UEs M stop listening to the ProSe restriction coding.
The apparatus of claim 16 wherein said apparatus further comprises:

a second notification module, configured to notify the UE A to continue to broadcast the ProSe restriction coding when the UE M requests to listen to the ProSe restriction coding of the UE A.
The apparatus of claim 16 wherein said apparatus further comprises:

The first receiving module is configured to receive the monitoring request message sent by the home PF of the UE M, where the listening request message carries the valid duration of the listening request message; wherein, when the valid duration is 0 Instructing the UE M to stop listening to the ProSe restriction code.
The device according to claim 18, wherein the valid duration is carried in the interception request message sent by the home PF of the UE M in at least one of the following cases:

The timer of the UE M is 0;

The timer of the home PF of the UE M expires, and the home PF of the UE M does not receive the interception request message retransmitted by the UE M.
The apparatus according to claim 18 or 19, wherein the detecting module is further configured to determine whether all the UEs M are stopped according to the identifiers of all UEs M in the context of the UE A and the valid duration Listening to the ProSe restriction coding of the UE A; wherein, when the validity time in the interception request message sent by the home PF of the UE M indicated by the identifier of each UE M is 0, all the UE M stops listening to the ProSe restriction coding of UE A.
The device according to claim 16, wherein the device further comprises: a second receiving module, configured to receive a listening request message sent by the home PF of the UE M, where the listening request message carries the UE The location information of the M; and the authorization update request message sent by the application server, where the authorization update request message carries the location information of the UE A;

The detecting module is further configured to determine, according to location information of the UE A and location information of all the UEs, whether all of the UEs M have moved out of a maximum broadcast range of the UE A; When the UE M moves out of the maximum broadcast range of the UE A, all the UEs M stop listening to the ProSe restriction coding of the UE A.
The apparatus according to claim 16, wherein the first notification module is further configured to send a broadcast stop request message to the UE A, where the broadcast stop request message is carried to indicate that the UE A does not The UE M is listening to the indication information of the ProSe restriction coding.
The device of claim 22, wherein the device further comprises:

a sending module, configured to send a broadcast authorization request message to the visited PF corresponding to the public land mobile network PLMN where the UE A is located, where the broadcast authorization request message carries a message indicating that the UE A will stop broadcasting. The ProSe restricts the indication information of the encoding;

The third receiving module is configured to receive a broadcast authorization confirmation message returned by the visited PF.
The device of claim 22, wherein the device further comprises:

And a fourth receiving module, configured to receive a broadcast stop response message returned by the UE A, where the broadcast stop response message is used to indicate that the UE A has stopped broadcasting the ProSe restriction code.
A discovery device for short-range communication, the device being located in a broadcast terminal UE A, the device comprising:

a receiving module, configured to receive a notification message sent by the home proximity communication server PF of the UE A, where the notification message is that the home PF stops listening to the proximity communication ProSe restriction coding in all the listening terminals UE M Message sent under;

And stopping the module, configured to stop broadcasting the ProSe restriction code according to the indication of the notification message.
The apparatus according to claim 25, wherein said receiving module receives a notification message transmitted by said home proximity communication server PF of UE A in at least one of the following cases:

All the timers of the UE M are set to 0;

All the timers of the home PF of the UE M are timed out, and all the home PFs of the UE M do not receive all the listening request messages retransmitted by the UE M;

All of the UEs M have moved out of the maximum broadcast range of the UE A.