WO2014169786A1

WO2014169786A1 - Method, system, and device for discovery between user equipments

Info

Publication number: WO2014169786A1
Application number: PCT/CN2014/075215
Authority: WO
Inventors: 王静; 宗在峰
Original assignee: 中兴通讯股份有限公司
Priority date: 2013-04-16
Filing date: 2014-04-11
Publication date: 2014-10-23
Also published as: CN104113821A

Abstract

Disclosed are a method, system, and device for discovery between user equipments (UEs). The method comprises: when receiving an adjacent UE discovery request initiated by a UE and determining that authentication of the UE succeeds, a Prose Server notifying a base station accessed by the UE of configuring a radio resource for the UE; and the Prose Server notifying the UE of a discovery result reported by a target UE.

Description

Method, system and device for discovering between user equipments

The present invention relates to the field of mobile communications, and in particular, to a method, system, and apparatus for discovering user equipment (UE, User Equipment). Background technique

In order to maintain the competitiveness of the third-generation mobile communication system in the field of communication, to provide users with faster, less delayed, and more personalized mobile communication services, while reducing operators' operating costs, third-generation cooperation The Standards Working Group of the 3GPP (3rd Generation Partnership Project) has been working on the Evolved Packet System (EPS). The structure of the EPS, as shown in FIG. 1 , includes a radio access network and a core network. The core network includes a home subscriber server (HSS, Home Subscriber Server) and a mobility management entity (MME, Mobility Management). Entity), Serving GPRS Support Node (SGSN), Policy and Charging Rule Function (PCRF), Serving Gateway (S-GW), Packet Data Gateway (P-GW, PDN Gateway) and a packet data network (PDN, packet data network) ₀

In the R12 phase of the 3GPP standard, some European and American equipment and operators implement proximity services for direct communication between devices in mobile communication networks based on national regulations. For example, when the two users use the social network application of the user equipment (UE, User Equipment), if the distance between the two UEs is close enough, the data is transmitted through the direct mode between the UEs, and the data does not need to be sent through the upper layer network. Bearer routing. In this way, the load of the network can be reduced, and the data transmission efficiency can be improved. The advertisement function, the friend discovery, and the information delivery of the commercial application can also be completed through the function, so that the network operator can better support the user application, the user. And the experience of the business operator is good.

At present, in order to meet the proximity service requirements of direct communication between UEs, 3GPP proposes an EPS-based mobile communication network, as shown in FIG. 2, by adding a dedicated control network element, ie, proximity service, to the EPS. The server (Prose Server, Proximity Service Server) authorizes whether the UE allows the use of the Proximity Service (Prose, Proximity Servic), controls the discovery operation and communication establishment of the UE through the Sx1 interface, and supports the application-level service function by interacting with the application through the Sx2 interface. . The control network element can carry a direct message with the UE through the user plane of the Sx3 interface.

In the prior art, there is no explicit implementation of the Prose Server management method for the UE, and there is no explicit method for cooperative operation between the application server (App Server) using the near service and the mobile communication network, and providing mutual discovery for the UE using the adjacent service. Generally, the two UEs in the mobile network discover each other. The application server determines whether the two UEs are adjacent according to the network map. If they are adjacent, the neighbor UE list is sent to the UE, and then the user performs subsequent operations through the UE. However, the above-mentioned prior art UE discovery method relies too much on wireless network coverage and network map calculation, and the accuracy is not high, and the UE cannot actively complete the discovery process of the target UE, and thus cannot meet the newly required device-to-device discovery. Demand and operational efficiency are not high. Summary of the invention

In view of the above, the present invention provides a method, system and device for discovering between UEs, which improves the efficiency and accuracy of the target UE by cooperation between the UE and other devices in the mobile network.

An embodiment of the present invention provides a method for discovering between UEs, where the method includes:

When the neighboring service Prose server receives the UE-initiated request to discover the neighboring UE, and determines that the UE is authenticated, the base station that is notified by the UE is configured to configure the radio resource for the UE, so that the UE passes the The radio resource sends the discovery signaling to the target UE, and when the target UE receives the discovery signaling, causes the target UE to report the discovery result to the Prose Server;

The Prose Server notifies the UE of the discovery result of the target UE.

In the foregoing solution, before the Prose Server receives the request initiated by the UE to discover the neighboring UE, the method further includes:

The application server sends a Prose ID list and/or a corresponding Prose Server ID to the UE.

In the foregoing solution, the determining, by the UE, the authentication, includes: The Prose Server determines, according to the subscription and/or configuration information of the UE, whether the UE has the right to use the adjacent service, and if yes, the UE passes the adjacent service authentication.

In the above solution, after the UE is authenticated, the method further includes:

When the UE and the target UE in the request for the neighboring UE correspond to different Prose servers, the Prose server sends the Prose ID list and/or the Prose Server ID in the request for discovering the neighboring UE to the corresponding Prose Server. And determining, after receiving the information that the target UE returned by the Prose Server corresponding to the target UE, is allowed to be discovered by the UE, determining that the UE authentication is completed;

And determining, by the Prose server, the target UE according to the Prose ID list and/or the Prose Server ID in the request for discovering the neighboring UE, when the UE and the target UE in the request for discovering the neighboring UE correspond to the same Prose server. The information that is discovered by the UE is allowed to be determined, and the UE authentication is determined to be completed.

In the above solution, the Prose server notifies the base station that the UE accesses to configure the radio resource for the UE, including:

The Prose Server triggers the UE to initiate a discovery operation;

When the mobility management unit MME receives the resource request information sent by the UE after the discovery operation is initiated, the MME obtains the authorization information from the Prose server, and sends the authorization information to the base station corresponding to the UE.

The base station configures a radio resource for the UE according to the authorization information.

The Prose server sends the authorization information to the base station that the UE accesses by the MME, and notifies the base station that the UE accesses to configure the radio resource for the UE, and the base station configures the radio resource for the UE according to the authorization information. .

In the above solution, the Prose server notifies the base station that the UE accesses to configure the radio resource for the UE, and further includes:

The Prose server is a base station that is accessed by each target UE, and needs to be configured for adjacent service discovery. The frequency band resource to be monitored.

In the above solution, the Prose Server notifies the UE of the discovery result of the target UE, including:

When the target UE and the source UE correspond to the same Prose Server, the Prose Server returns the Prose ID of the target UE to the UE after receiving the Prose ID reported by the target UE or the target UE.

When the target UE and the source UE correspond to different Prose Servers, the Prose Server corresponding to the target UE sends the Prose ID of the target UE as a discovery result to the UE through the Prose Server corresponding to the UE.

An embodiment of the present invention further provides a method for discovering between UEs, where the method includes:

The UE initiates a request to discover the neighboring UE to the corresponding Prose Server;

The UE broadcasts the discovery signaling by using the radio resource configured by the base station, so that the target UE sends the Prose ID of the Prose Server to the Prose Server according to the received discovery signaling, and then receives the discovery result returned by the Prose Server. .

In the foregoing solution, before the UE sends a request to the corresponding Prose Server to discover the neighboring UE, the method further includes:

The UE receives a list of Prose IDs and/or corresponding Prose Server IDs of all UEs allowed to be discovered by the application server.

In the above solution, before the receiving the result of the discovery returned by the Prose Serve, the method further includes:

When the target UE and the source UE correspond to the same Prose Server, the target UE detects the received discovery signaling in real time, obtains the Prose ID of the UE from the discovery signaling, and uses the Prose ID as the target UE discovery result.艮 to the Prose server; the Prose server sends the Prose ID of the target UE to the source UE as a discovery result.

In the above solution, before the receiving the result returned by the Prose Server, the method Also includes:

When the target UE and the source UE correspond to different Prose Servers, the target UE detects the received discovery signaling in real time, and obtains the Prose ID of the UE from the discovery signaling, where the target UE uses the Prose ID as the target UE. The result of the discovery is sent to the target Prose server; the target Prose server sends the Prose ID of the target UE to the Prose server corresponding to the source UE, and sends the Prose server to the source UE.

In the above solution, before the receiving the result returned by the Prose Server, the method further includes:

The target UE detects discovery signaling, signaling a pilot to find the information detected corresponding to the base station via Prose ID ^ gen to Prose Server ₀

An embodiment of the present invention provides a discovery system between UEs, where the system includes: a Prose Server and a base station;

a Prose server, configured to: when receiving a UE-initiated request to discover a neighboring UE, and determining that the UE is authenticated, notifying the base station accessed by the UE to configure a radio resource for the UE; and reporting the target UE Notifying the UE of the result;

a base station, configured to receive, by the Prose server, a notification that the radio resource is configured for the UE, so that the UE sends discovery signaling to the target UE by using the radio resource, and when the target UE receives the discovery signaling, The target UE is caused to report the discovery result to the Prose Server.

In the foregoing solution, the system further includes: an application server, configured to send a Prose ID list and/or a corresponding Prose Server ID to the UE.

In the above solution, the Prose Server is configured to determine, according to the subscription and/or configuration information of the UE, whether the UE has the same Prose server as the target UE in the request of the neighboring UE. The right to use the adjacent service, if any, the UE passes the adjacent service authentication.

In the foregoing solution, the Prose Server is configured to: when the UE and the target UE in the request for discovering the neighboring UE correspond to different Prose servers, according to the Prose ID list and/or Prose Server in the request for discovering the neighboring UE. The ID sends an authentication request to the corresponding Prose Server. Determining that the UE authentication is completed if the target UE returned by the Prose Server corresponding to the target UE is allowed to be discovered by the UE;

When the UE and the target UE in the request for discovering the neighboring UE correspond to the same Prose server, if the Prose ID list and/or the Prose Server ID in the request for discovering the neighboring UE is determined, the target UE is allowed to be The information discovered by the UE determines that the UE authentication is completed.

In the foregoing solution, the system further includes: an MME, configured to: after receiving the resource request information sent by the UE after the discovery operation is started, obtain the authorization information from the Prose Server, and send the authorization information to the base station corresponding to the UE;

Correspondingly, the Prose Server is configured to trigger the UE to initiate a discovery operation;

The base station is configured to configure a radio resource for the UE according to the authorization information sent by the Prose Server.

In the above solution, the Prose server is configured to send the authorization information to the base station accessed by the UE by using the MME after the UE is authenticated.

Correspondingly, the MME is configured to forward the authorization information sent by the Prose Server to the base station;

The base station is configured to configure a radio resource for the UE according to the authorization information forwarded by the MME.

In the foregoing solution, the Prose server is configured to configure, by the base station that each target UE accesses, a frequency band resource that needs to be monitored by the service discovery.

In the above solution, the Prose Server is configured to: when the target UE and the source UE correspond to the same Prose Server, after receiving the Prose ID reported by the target UE or the target UE, the Prose ID of the target UE is found. The result is returned to the UE.

In the above solution, the Prose Server is configured to respond to the source UE by using the Prose ID sent by the target UE as the target UE when the target UE is different from the source UE. The Prose Server sends out the result of the discovery sent by the target Prose Server to the source UE.

An embodiment of the present invention provides a UE, where the UE includes: a requesting module and a transceiver module; among them,

The requesting module is configured to initiate a request to discover the neighboring UE to the corresponding Prose Server, and the transceiver module is configured to use the radio resource configured by the base station to broadcast the discovery signaling, so that the target UE sends the discovery signaling to the Prose Server according to the received After sending its own Prose ID as the discovery result, it receives the discovery result returned by the Prose Server.

In the above solution, the transceiver module is configured to receive a list of Prose IDs and/or corresponding Prose Server IDs of all UEs allowed to be discovered by the application server.

In the above solution, the transceiver module is configured to detect whether a discovery signal is received in real time, if the target UE is the same as the source UE, and if the UE is the target UE, if the UE is received, the discovery is received. Obtaining the Prose ID of the UE in the signaling, and sending the Prose ID as a discovery result to the source UE through the Prose Server.

In the above solution, the transceiver module is configured to detect whether a discovery signal is received in real time, if the target UE is a different Prose Server from the source UE, and if the UE is the target UE, if the UE is received, the discovery is received. The Pose ID of the UE is obtained in the signaling, and the Prose ID is used as the discovery result of the target UE, and the discovery result is sent to the source UE by the corresponding target Prose Server and the Prose Server corresponding to the source UE.

In the above solution, the transceiver module is configured to: when the UE is the target UE, the Prose ID corresponding to the pilot information in the detected discovery signaling is sent to the Prose Server via the base station.

The method, the system and the device for discovering between the UEs are provided by the UE, when the Prose Server receives the request for the discovery of the neighboring UE initiated by the UE, and determines that the UE is authenticated, the base station that is notified by the UE is the The UE configures the radio resource; the Prose Server notifies the UE of the discovery result reported by the target UE. In this way, when the UE is found, the dependence on the application server device can be reduced, and the map or latitude and longitude information is not required to determine whether the two UEs are adjacent, thereby improving efficiency; and, because the UE directly sends discovery signaling, and acquires the received discovery signaling. The information corresponding to the UE is used as a discovery result, which can ensure that the UE finds the accuracy of the adjacent target UE. DRAWINGS

Figure 1 is a schematic diagram of the architecture of the EPS;

Figure 2 is a schematic diagram of a network architecture supporting adjacent service functions;

3 is a schematic flowchart of a method for discovering between UEs according to an embodiment of the present invention;

4 is an operation flow of a UE in a method for discovering between UEs according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a structure of a discovery system between UEs according to an embodiment of the present invention; FIG.

6 is a schematic structural diagram of a structure of a UE according to an embodiment of the present invention;

7 is a schematic flow chart of a first embodiment of the present invention;

8 is a schematic flowchart of Embodiment 2 of the present invention;

9 is a schematic flowchart of a third embodiment of the present invention;

FIG. 10 is a schematic flowchart diagram of Embodiment 4 of the present invention. detailed description

The basic idea of the embodiment of the present invention is: when the Prose Server receives the UE-initiated request to discover the neighboring UE, and determines that the UE is authenticated, the base station that is notified by the UE is configured to configure the radio resource for the UE; The Prose Server notifies the UE of the discovery result reported by the target UE.

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

The embodiment of the present invention proposes an operation flow of the Prose Server side in the discovery method between the UEs. As shown in FIG. 3, the following steps are included:

Step 301: The Prose Server determines whether a request initiated by the UE to discover the neighboring UE is received. If yes, step 302 is performed; otherwise, the process ends.

Here, the request for discovering the neighboring UE includes: a Prose ID list, which may further include a Prose server ID and/or an application label, and the Prose server addresses the Prose server interactive message according to the Prose server ID as the target UE. .

The Prose ID list is information delivered by the application server.

Before the foregoing step 301, the UE receives a list of Prose IDs corresponding to the UEs that are allowed to be discovered by the application server, and/or a Prose Server ID. In addition, the application server further authorizes the target UE, determines whether the target UE is allowed to be discovered according to the application subscription/configuration, and converts the APP ID of the discovered target UE into the target Prose ID.

The application server may provide the UE with the Prose server ID of the UE that is allowed to be discovered. Only when the target Prose ID does not include the corresponding Prose server information, the Prose server identifier that is served by the target UE needs to be sent to the user.

Alternatively, the application server may provide the UE with a list of Prose IDs of the target UE, and provide a list of Prose IDs of the target UE when the discovery is restricted, and does not need to be provided in the case of open discovery.

Before performing step 301, the UE may perform step 301 after receiving the Prose ID list sent by the application server. The UE may also receive the Prose ID list sent by the application server according to actual requirements. The user determines to begin step 301.

Step 302: The Prose server authenticates the UE according to the request for discovering the neighboring UE. If the authentication succeeds, step 303 is performed; otherwise, the processing flow ends.

Here, the authentication is: when the UE and the target UE in the request for discovering the neighboring UE correspond to the same Prose server, the Prose Server determines whether the UE is based on the subscription and/or configuration information of the UE. There is a right to use the adjacent service, and if yes, the UE uses the proximity service authentication to pass; wherein the subscription and/or configuration information is preset according to the subscription condition of the user according to the actual situation, and details are not described herein.

Preferably, after the UE is authenticated, the method further includes:

When the UE and the target UE in the request for the neighboring UE correspond to different Prose servers, the Prose server sends the Prose ID list and/or the Prose Server ID in the request for discovering the neighboring UE to the corresponding Prose Server. If the authentication request is received, if the target UE returned by each Prose Server corresponding to the target UE is allowed to be discovered by the UE, it is determined that the UE authentication is completed;

And determining, by the Prose server, the target UE according to the Prose ID list and/or the Prose Server ID in the request for discovering the neighboring UE, when the UE and the target UE in the request for discovering the neighboring UE correspond to the same Prose server. Allowing information discovered by the UE, then determining the location The UE authentication is completed.

The neighboring UE is a UE that uses an adjacent service and is geographically adjacent to the UE. Step 303: The Prose server notifies the base station accessed by the UE to configure radio resources for the UE, so that the UE sends discovery signaling to the target UE by using the radio resource, and when the target UE receives the discovery signal, The target UE is caused to report the discovery result to the Prose Server.

The step is specifically: the p _rose server triggers the UE to initiate a discovery operation; the UE requests a radio resource from a corresponding MME;

After receiving the request for the radio resource, the MME sends the authorization information to the base station accessed by the UE after acquiring the authorization information from the Prose server;

The base station accessed by the UE configures a radio resource for the UE according to the authorization information.

Or, the step is specifically: the Prose server sends the authorization information to the base station accessed by the UE by using the MME, and the base station configures the radio resource for the UE according to the authorization information.

Here, the authorization information includes: a Prose ID list and an authorization signal that are allowed to be discovered by the UE.

The radio resource is used for broadcast discovery signaling. The discovery signaling may be specific pilot information, and may also be a Prose ID of the target UE selected by the user.

Preferably, the Prose server also configures, for the base station accessed by each target UE, a frequency band resource that needs to be monitored by the neighboring service discovery.

Step 304: The Prose Server will target the target! The result of the discovery of ^^ is notified to the UE. Here, the discovery result is the Prose ID of the target UE.

The direct message between the Prose server and the user is a control message carried on the user plane. Preferably, before performing the step 304, the method may further include: the target UE detecting, in real time, whether the discovery signaling is received by using the radio resource, and if yes, obtaining the

The Prose ID of the UE is used to send the Prose ID to the target Prose Server corresponding to the target UE; and the target Prose Server returns the Prose ID of the target UE to the UE as the discovery result of the target UE. Preferably, before performing step 304, the method may further include: when the target UE and the source UE correspond to the unused Prose Server, the target UE detects whether the discovery signaling is received in real time, and if received, from the discovery signaling. Acquiring the Prose ID of the UE, the target UE sends the Prose ID to the corresponding target Prose Server; the target Prose Server sends the Prose ID to the Prose Server corresponding to the source UE as the discovery result of the target UE. The Prose Server corresponding to the source UE sends the discovery result to the source UE. The embodiment of the present invention proposes an operation flow of the UE side in the method for discovering between UEs. As shown in FIG. 4, the method includes the following steps:

Step 401: The UE initiates a request to discover the neighboring UE to the corresponding Prose Server.

Here, before performing step 401, the method may further include: the UE receiving a list of Prose IDs and/or corresponding Prose Server IDs of all UEs allowed to be discovered by the application server.

Step 402: The UE broadcasts the discovery signaling by using the radio resource configured by the base station, so that the target UE sends the Prose ID to the Prose Server according to the received discovery signaling, and then receives the Prose Server and returns. The findings.

Before receiving the discovery result sent by the Prose Server, the method further includes: when the target UE and the source UE correspond to the same Prose Server, the target UE detects the discovery signaling in real time, and acquires the UE from the discovery signaling. Prose ID, the Prose server is sent to the source UE as the result of the discovery of the target UE, and the Prose server sends the Prose server as the discovery result to the source UE;

Or, when the target UE and the source UE correspond to different Prose Servers, the target UE detects the received discovery signaling in real time, and obtains the Prose ID of the UE from the discovery signaling, where the target UE will use the Prose ID. The result of the discovery of the target UE is sent to the target server. The target Prose server sends the Prose ID of the target UE to the Prose server corresponding to the source UE, and sends the Prose server to the source UE.

Before the Prose ID of the target UE is used as a discovery result, the method further includes: the target UE detects the discovery signaling, and reports the Prose ID corresponding to the pilot information in the discovery signaling to the base station. Prose Server. As shown in FIG. 5, an embodiment of the present invention further provides an inter-UE discovery system, including: a Prose Server 51 and a base station 52;

The Prose server 51 is configured to: when receiving the UE-initiated request to discover the neighboring UE, and determine that the UE is authenticated, notify the base station 52 that the UE accesses to configure the radio resource for the UE; and report the target UE Notifying the UE of the discovery result;

The base station 52 is configured to receive, by the Prose server 51, a notification that the radio resource is configured for the UE, so that the UE sends discovery signaling to the target UE by using the radio resource, and when the target UE receives the discovery signaling The target UE is caused to report the discovery result to the Prose Server.

The base station 52 is configured to configure a radio resource for broadcast discovery signaling for the UE according to the notification of the Prose Server 51.

The system further includes: an application server 53, configured to provide a list of Prose IDs and/or Prose Server IDs corresponding to the UEs that are allowed to be discovered to the UE.

The application server 53, configured to authorize the target UE, determines whether the target UE is allowed to be discovered according to the application subscription/configuration, and converts the APP ID of the discovered target UE into the target Prose ID.

The application server 53 may provide the UE with the Prose server ID of the target UE. Only when the target Prose ID does not include the corresponding Prose server information, the Prose server identifier for the target UE service needs to be sent to the user.

Alternatively, the application server 53 may provide the UE with a list of Prose IDs of the target UE, and provide a list of Prose IDs of the target UE in the case of restricted discovery, and is not required to be provided in the case of open discovery.

The Prose server 51 is configured to perform authentication according to the subscription and/or configuration information of the UE, and the subscription and/or configuration information is preset according to the subscription condition of the user according to actual conditions, and details are not described herein.

The Prose server 51 is configured to send a PLMN of the UE to each other Prose Server. The information is confirmed by the other Prose Servers, and the list of Prose IDs that are allowed to be discovered is generated according to the confirmation information that is allowed to be discovered by each Prose Server.

The Prose Server 51 is configured to determine, according to the subscription and/or configuration information of the UE, whether the UE uses the adjacent service when the UE and the target UE in the request for the neighboring UE correspond to the same Prose server. Permissions, if any, then the UE passes adjacent service authentication.

The Prose server 51 is configured to: when the UE and the target UE in the request for discovering the neighboring UE correspond to different Prose servers, according to the Prose ID list and/or the Prose Server ID in the request for discovering the neighboring UE The Prose server sends an authentication request, and if the target UE returned by the Prose Server corresponding to the target UE is allowed to be discovered by the UE, determining that the UE authentication is completed;

The system further includes: the MME 54 configured to: after receiving the resource request information sent by the UE after the discovery operation is initiated, obtain the authorization information from the Prose server 51, and send the authorization information to the base station corresponding to the UE; The Prose server 51 is configured to trigger the UE to start the discovery operation. The UE is configured to send the resource request information to the corresponding MME 54 after receiving the trigger of the Prose server 51 to start the discovery operation, and configure the radio resource according to the operation of the base station 52. The base station 52 is configured to configure a radio resource for the UE according to the authorization information sent by the Prose Server 51.

Alternatively, the Prose server 51 is configured to send the authorization information to the base station 52 accessed by the UE by using the MME 54 after the UE is authenticated by the MME 54. Correspondingly, the MME 54 is configured to send the Prose server 51. The authorization information is forwarded to the base station 52. The base station 52 is configured to configure a radio resource for the UE according to the authorization information forwarded by the MME 54.

The Prose Server 51 is configured to: when the target UE and the source UE correspond to the same Prose Server, after receiving the Prose ID reported by the target UE or the target UE, the Prose ID of the target UE is returned to the discovery result. The UE. The Prose Server 51 is configured to send the Prose ID sent by the target UE as the target UE to the Prose Server corresponding to the source UE, if the target UE is different from the source UE. If the source is a Prose Server, the discovery result sent by the target Prose Server is sent to the source UE.

The UE provided by the present invention, as shown in FIG. 6, includes: a requesting module 61 and a transceiver module 62;

The requesting module 61 is configured to initiate a request for the discovery of the neighboring UE to the corresponding Prose Server. The transceiver module 62 is configured to broadcast the discovery signaling by using the radio resource configured by the base station, so that the target UE sends the discovery signaling according to the received After the Prose Server sends its own Prose ID as the discovery result, it receives the discovery result returned by the Prose Server.

The transceiver module 62 is configured to receive a list of Prose IDs and/or corresponding Prose Server IDs of all UEs that are allowed to be discovered by the application server.

The transceiver module 62 is configured to: when the target UE and the source UE correspond to the same Prose Server, if the UE is the target UE, it detects whether the discovery signaling is received in real time, and if received, from the discovery signaling. Obtaining the Prose ID of the UE, and sending the Prose ID as a discovery result to the source UE through the Prose Server.

The transceiver module 62 is configured to detect, when the target UE and the source UE correspond to different Prose Servers, if the UE is the target UE, detect whether the discovery signaling is received in real time, and if yes, from the discovery signaling. Obtaining the Prose ID of the UE, using the Prose ID as a discovery result of the target UE, and transmitting the discovery result to the source UE by using the corresponding target Prose Server and the Prose Server corresponding to the source UE.

The transceiver module 62 is arranged on the Prose ID via the base station when a target UE when UE is located, finding the detected signaling information corresponding to the pilot to Prose Server ₀ ^ Gen

The request module 61 may be implemented by hardware such as a CPU or a DSP, and the transceiver module 62 may be composed of a CPU and an antenna, or a DSP and an antenna. Embodiment 1, as shown in FIG. 7, includes: Step 701: The UE 1 performs application setting in the APP Server by using application layer signaling, or sends a discovery request to the App Server.

Step 702: After receiving the discovery request, the APP server determines, according to the application subscription, the UE 2 that is allowed to be discovered, and maps the APP ID of the UE 2 into a Prose ID.

Step 703: The APP server will allow the discovered UE 2 through application layer signaling.

The Prose ID list information is sent to UE 1.

Preferably, the Prose ID list information of the UE 2 that is to be discovered is sent to the UE 1, and may be: if there is no Prose server ID in the Prose ID, the APP server sends the Prose server ID serving the UE 2 to the UE. 1 ;

The Prose ID list information of the UE 2 is optional, and needs to be transmitted if the UE performs restricted discovery, and does not need to be transmitted in case of open discovery.

Step 704: The UE 1 sends a direct signaling request to the Prose server 1 to discover the UE 2 in the Prose ID list and carries the application information.

Preferably, if the UE 1 receives the Prose server ID, the Prose server ID is simultaneously sent to the Prose server 1; the Prose server 1 finds the Prose server serving the UE 2 according to the Prose server ID.

The direct signaling is a control plane message carried on the user plane.

Step 705: After receiving the direct signaling, the Prose server 1 determines, according to the subscription/configuration information, whether the UE 1 is allowed to use the discovery function in the network, and determines whether the corresponding application in the discovery request is allowed to be used by the UE 1. If allowed, Then step 606 is performed; otherwise, the process flow is ended.

Step 706: The Prose server 1 parses the direct signaling to obtain the Prose ID or sends an interaction message to the Prose server 2 serving the UE 2 through the target Prose server ID.

Here, the interaction message includes network information of the UE 1, and the network information includes a PLMN, a Prose ID1, and a Prose server ID1 of the UE1. The Prose server ID may be an identifier name, an access point name, or an address of the Prose server.

Step 707: When the Prose server 2 determines that the discovery operation of the UE1 is permitted according to the subscription/configuration information, returning the peer confirmation information to the Prose server 1 by using an interactive response message, Record the binding with Prose ID1 and Prose server 1.

Step 708: The Prose server 1 determines, according to the interactive response message fed back by the target Prose server 2, a UE 2 Prose ID list that is finally allowed to be discovered.

Step 709: The Prose server1 triggers the UE1 to perform an adjacent service discovery operation.

Step 710: If the UE1 does not find the required radio resource, request the resource message to request the resource for the MME served by the UE by requesting the discovery resource message.

Step 711: The MME returns a notification to the Prose server 1 to determine that the user is allowed to initiate discovery.

Step 712: The Prose server 1 returns a Prose ID list of the UE 2 to the MME by using an acknowledgement message. The Prose ID of UE2 in the message is carried in the case of restricted discovery.

Step 713: The MME sends the authorization information to the eNB accessed by the UE1, and carries the Prose ID list of the UE2, and triggers the eNB to allocate the radio resources required for the discovery.

Step 714: The eNB allocates specific pilot information to UE1 by using the RRC resource configuration message to send to UE1. Alternatively, the eNB sends the Prose ID of UE2 to UE1 through an RRC resource configuration message.

Step 715: UE1 sends specific pilot information or Prose ID of UE 2 on the broadcast channel for discovery.

If the UE 2 receives the specific pilot information of the UE1, the reporting mode 1 is performed. Specifically, the following is: Step 716: The UE 2 sends the received pilot information of the UE1 to the eNB to which it is connected. Step 717: The eNB converts the pilot of the UE 1 sent by the UE2 into a corresponding Prose.

ID1 is the result of the discovery.

Step 718: The eNB forwards the discovery result (Prose ID1) to the Prose server 2 serving the UE 2 through the MME, and the Prose server 2 saves the neighbor service discovery information.

Step 719: The Prose server 2 returns the discovery result to the UE 2 through the direct interface, where the message carries the Prose ID 1 of the UE 1, indicating that the UE 1 discovers the UE 2.

After the foregoing step 719 is completed, the UE 2 may map the corresponding Prose ID to the application layer to display the user discovery result. If the target UE 2 receives the Prose ID information of the UE 2, the reporting mode 2 is performed, specifically:

Step 720: The UE 2 reports the Prose ID of the UE 1 that sends the discovery signaling to the Prose server 2 that is the user's monthly service.

In this step, the UE 2 may discover the UE 1 through the discovery signaling sent by the UE 1;

UE 2 can map the corresponding Prose ID to the application layer to display the user discovery result.

Prose server2 saves proximity service discovery information.

Step 721: When the Prose server 2 obtains the discovery result of the UE 2, the Prose server 1 serving the UE 1 is found through the Prose ID1 or the bound Prose server information, and the result of the interaction is found, and the message carries the Prose ID of the UE 2.

Step 722: The Prose server1 sends the Prose ID2 to the UE 1, indicating that the UE 2 is found. Preferably, after the step 722 is completed, the UE 1 may map the corresponding Prose ID to the application layer to display the user discovery result. Prose serverl saves proximity service discovery information.

In this embodiment, when the prose server 1 determines the discovery authorization, the discovery authorization result and the target Prose ID list information may be directly sent to the MME to which the UE 1 is attached. When the MME returns a response, the UE 1 is triggered to start the discovery operation. Thus, when the UE 1 requests the discovery resource from the network, the MME does not have to acquire the authorization from the Prose server1. Specifically, after step 608, the following operations may be performed:

Step 709: The Prose server1 sends an authorization discovery message to the MME to which the UE 1 is attached, and the target UE Prose ID list in the message.

Step 710: The MME returns an authorization discovery confirmation message.

Step 711: The prose server1 sends a trigger discovery message to the UE 1.

Step 712: UE 1 has no radio resources for discovery at this time, so it sends a message requesting resource discovery to the network.

Step 713: The MME sends an authorization message to the eNB accessed by the UE 1 and carries the Prose ID list of the target UE, and triggers the eNB to allocate the radio resources required for the discovery.

The subsequent steps are the same as 714~722 above. The second embodiment differs from the first embodiment in the manner in which the authorization result is delivered and the manner in which the resources are negotiated between the UE and the eNB. As shown in FIG. 8, the details are as follows:

Steps 801 to 808 are the same as steps 701 to 708 of the first embodiment.

Step 809: When the Prose server 1 confirms that the UE 1 authorizes the discovery, the authorization message is sent to the eNB accessed by the UE 1 through the MME, and the message carries the Prose ID of the target UE. The target UE's Prose ID is carried in the case of restricted discovery.

Step 810: The eNB returns an authorization discovery acknowledgement message to the Prose server 1.

Step 811: The Prose server 1 triggers the UE 1 to initiate a discovery operation through a direct interface with the UE 1.

Step 812: The UE 1 applies for a discovery resource to an eNB that it accesses.

Step 813: The eNB allocates a specific pilot for discovery to the UE 1 or sends the Prose ID of the target UE to the UE.

Steps 814 to 821 are the same as steps 714 to 721 of the first embodiment. Embodiment 3, as shown in FIG. 9, is as follows:

Steps 901 to 907 are the same as steps 701 to 707 of the first embodiment.

Step 908: When the Prose server 1 authorizes the UE1 to use the discovery function, the Prose server 1 starts the discovery operation by triggering a message.

Step 909: The UE 1 requests a discovery resource from the network, and sends a request discovery resource message to the attached MME.

Step 910: The MME obtains a discovery authorization result from the Prose server1 serving the UE 1. Step 911: The Prose server1 informs the MME of the conclusion of the discovery by the authorization determination message.

Step 912: The MME requests the discovery resource by using the S1-AP grant resource message to the eNB accessed by the UE 1.

Step 913: The eNB configures the discovery resource for the UE 1 by using an RRC configuration message.

Step 914: Prose server 2 serving UE 2 when UE 2 is authorized to be discovered by UE 1 A trigger discovery message is sent to UE 2.

Step 915: The UE 2 requests the discovery resource from the network, and sends a request discovery resource message to the MME to which it is attached.

Step 916: The MME sends a message request to Prose server 2 to authorize discovery.

Step 917: Prose server2 replies to the MME to confirm the authorization discovery message, which is indicated in the message.

The UE 2 listens and sends the actively discovered user Prose ID1 to the MME.

Step 918: The MME sends an authorization resource message to the eNB that is accessed by the UE 2, and the message indicates that the UE 2 is allowed to listen, and the monitored Prose ID1 is simultaneously sent to the eNB.

Step 919: UE 1 sends its own Prose ID1 on the broadcast channel.

Step 920: The target UE 2 reports the discovery result to the Prose server 2 after receiving the discovery signaling of the UE 1, and the message carries the Prose ID1 to indicate that it is discovered by the UE 1. UE 2 can map the corresponding Prose ID to the application layer to display the user discovery result. Prose server2 saves proximity service discovery information.

Step 921: The Prose server2 finds the Prose server1 interaction discovery result for the UE 1 according to the Prose ID1 or the bound Prose server ID, and the message carries the Prose ID2 to indicate that the UE is found.

Step 922: The Prose server1 carries the Prose ID2 in the return discovery result message to inform the UE 1 that the UE is found. 2. The UE 1 can map the corresponding Prose ID to the application layer and display the result to the user. Prose serverl saves proximity service discovery information.

In this embodiment, the Prose server may actively send an authorization message to the MME attached to the user, and then trigger the user to start the discovery operation after obtaining the MME response, so that the user may directly obtain the authorization when requesting the discovery resource from the network. E.g:

Step 908: The Prose server1 sends an authorization message to the MME to which the UE 1 is attached, and the message indicates that the MME authorizes the discovery.

Step 909: The MME returns an authorization confirmation response to Prose serverl.

Step 910: The Prose server1 sends a trigger discovery message to the UE 1 through the direct interface.

Step 911: The UE 1 requests a resource from the network, and sends a request to the attached MME to discover the enterprise. Request.

The operation of the Prose server 2 to perform the monitoring of the UE 2 is similar to the operation of the UE 2, and the monitoring is performed first, and then the UE 2 initiates the discovery, and the process is not described again. Other operations are described in this embodiment. Embodiment 4, as shown in FIG. 10, is as follows:

Step 1001 1007 is the same as step 701 to step 707 of the first embodiment.

Step 1008: The Prose server1 sends the conclusion that the UE 1 discovers by the MME to the eNB accessed by the UE 1 in the form of an authorized discovery message.

Step 1009: The eNB replies with a response message.

Step 1010: Prose server1 notifies UE1 to start the discovery operation by triggering the discovery of the direct interface.

Step 1011: UE 1 negotiates discovery resources with its accessed eNB.

Step 1012: When the Prose server 2 determines that the UE 1 is allowed to discover, the MME will send the authorization result that the UE 2 is listening to to the eNB accessed by the UE 2.

Step 1013: The eNB returns an authorization feedback message.

Step 1014: Prose server2 triggers UE 2 to start the discovery operation.

Step 1015: The UE 2 negotiates the discovery resource with the eNB that it accesses, and the eNB sends the user Prose ID1 identifier of the monitoring indication and the monitoring to the UE.

Step 1016: UE 1 sends its own Prose ID1 on the broadcast channel.

Step 1017: The UE 2 monitors the Prose ID 1 in the broadcast channel and reports the discovery result to the Prose server 2, where the message carries the Prose ID1 to indicate that it is discovered by the UE 1. UE 2 can map the corresponding Prose ID to the application layer to display the user discovery result. Prose server2 saves proximity service discovery information.

Step 1018: Prose server2 finds the Prose server1 interaction discovery result for UE 1 according to Prose ID1 or the bound Prose server ID, and the message carries the Prose ID2 identifier to indicate that UE 2 is found.

Step 1019: Prose server1 returns the discovery result to UE 1, carrying the Prose ID2 identifier table. Ming found UE 2.

UE 1 can map the corresponding Prose ID to the application layer to display the user discovery result. Prose server 1 saves the proximity service discovery information.

The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

claims

1. A discovery method between user equipments and UEs, the method includes:

When the Proximity Service Prose Server receives a request initiated by the UE to discover nearby UEs and determines that the UE has passed the authentication, it notifies the base station accessed by the UE to configure wireless resources for the UE, so that the UE passes the The wireless resource sends discovery signaling to the target UE, and when the target UE receives the discovery signaling, causes the target UE to report the discovery result to the Prose Server;

The Prose Server notifies the UE of the discovery result on the target UE.

2. The method according to claim 1, wherein before the Prose Server receives a request initiated by the UE to discover a nearby UE, the method further includes:

The application server sends the Prose ID list and/or the corresponding Prose Server ID to the UE.

3. The method according to claim 2, wherein the determining that the UE is authenticated includes:

The Prose Server determines whether the UE has the authority to use the proximity service based on the subscription and/or configuration information of the UE. If so, the UE passes the authentication using the proximity service.

4. The method according to claim 3, wherein after the UE passes the authentication, the method further includes:

When the UE and the target UE in the request to discover neighboring UEs correspond to different Prose servers, the Prose server sends a message to the corresponding Prose Server according to the Prose ID list and/or Prose Server ID in the request to discover neighboring UEs. Authentication request, if the information returned by the Prose Server corresponding to the target UE is received that the target UE is allowed to be discovered by the UE, then it is determined that the UE authentication is completed;

When the UE and the target UE in the request to discover adjacent UEs correspond to the same Prose server, if the Prose server determines the target UE based on the Prose ID list and/or Prose Server ID in the request to discover adjacent UEs If the information discovered by the UE is allowed, it is determined that the UE authentication is completed.

5. The method according to claim 1, wherein the Prose server notifies the base station accessed by the UE to configure wireless resources for the UE, including:

The Prose Server triggers the UE to start the discovery operation;

When the mobility management unit MME receives the resource request information sent after the UE starts the discovery operation, the MME obtains the authorization information from the Prose server and sends the authorization information to the base station corresponding to the UE;

The base station configures radio resources for the UE according to the authorization information.

6. The method according to claim 1, wherein the Prose server notifies the base station accessed by the UE to configure wireless resources for the UE, including:

The Prose server sends authorization information to the base station accessed by the UE through the MME, and notifies the base station accessed by the UE to configure wireless resources for the UE. The base station configures wireless resources for the UE based on the authorization information. .

7. The method according to claim 5 or 6, wherein, while the Prose server notifies the base station accessed by the UE to configure wireless resources for the UE, it also includes:

The Prose server configures the frequency band resources required for monitoring of proximity service discovery for the base station accessed by each target UE.

8. The method according to claim 7, wherein the Prose Server notifies the UE of the discovery result reported by the target UE, including:

When the target UE and the source UE correspond to the same Prose Server, the Prose Server returns the discovery result of the Prose ID of the target UE to the UE after receiving the Prose ID reported by the target UE or the base station to which the target UE is connected.

9. The method according to claim 8, wherein the Prose Server notifies the UE of the discovery result reported by the target UE, including:

When the target UE and the source UE correspond to different Prose Servers, the Prose Server corresponding to the target UE takes the Prose ID of the target UE as the discovery result and sends it to the UE via the Prose Server corresponding to the UE.

10. A discovery method between UEs, the method includes: The UE initiates a request to the corresponding Prose Server to discover nearby UEs;

The UE uses the wireless resources configured by the base station to broadcast discovery signaling, so that the target UE sends its own Prose ID to the Prose Server as a discovery result according to the received discovery signaling, and then receives the discovery result returned by the Prose Server. .

11. The method according to claim 10, wherein before the UE initiates a request to the corresponding Prose Server to discover nearby UEs, the method further includes:

The UE receives a list of Prose IDs of all UEs that are allowed to be discovered and/or the corresponding Prose Server ID issued by the application server.

12. The method according to claim 10, wherein before receiving the discovery result returned by the Prose Serve, the method further includes:

When the target UE and the source UE correspond to the same Prose Server, the target UE detects receipt of discovery signaling in real time, obtains the Prose ID of the UE from the discovery signaling, and uses the Prose ID as the target UE discovery result. to the Prose Server; the Prose server sends the Prose ID of the target UE to the source UE as the discovery result.

13. The method according to claim 10, wherein before receiving the discovery result returned by the Prose Server, the method further includes:

When the target UE and the source UE correspond to different Prose Servers, the target UE detects the received discovery signaling in real time and obtains the Prose ID of the UE from the discovery signaling. The target UE uses the Prose ID as the target UE. The discovery result is sent to the target Prose server; the target Prose server sends the Prose ID of the target UE as the discovery result to the Prose server corresponding to the source UE, and sends it to the source UE through the Prose server corresponding to the source UE.

14. The method according to claim 10, wherein before receiving the discovery result returned by the Prose Server, the method further includes:

The target UE detects the discovery signaling and sends the Prose ID corresponding to the pilot information in the detected discovery signaling to the Prose Server via the base station _.

15. A discovery system between UEs, the system includes: Prose Server and base station; wherein,

Prose server, used to receive a request initiated by the UE to discover a nearby UE, and determine the When the UE passes the authentication, notify the base station accessed by the UE to configure wireless resources for the UE; and notify the UE of the discovery result reported by the target UE;

The base station is configured to receive a notification from the Prose server to configure wireless resources for the UE, so that the UE sends discovery signaling to the target UE through the wireless resource, and when the target UE receives the discovery signaling, The target UE is caused to report the discovery result to the Prose Server.

16. The system according to claim 15, wherein the system further includes: an application server, configured to send the Prose ID list and/or the corresponding Prose Server ID to the UE.

17. The system of claim 16, wherein,

The Prose Server is configured to determine whether the UE uses the proximity service based on the subscription and/or configuration information of the UE when the UE and the target UE in the request to discover nearby UEs correspond to the same Prose server. If there is permission, the UE passes the authentication using the proximity service.

18. The system of claim 17, wherein,

The Prose Server is configured to, when the UE and the target UE in the request to discover nearby UEs correspond to different Prose servers, send a request to the corresponding Prose Server based on the Prose ID list and/or Prose Server ID in the request to discover nearby UEs. The Prose Server sends an authentication request, and if it receives the information returned by the Prose Server corresponding to the target UE that the target UE is allowed to be discovered by the UE, it is determined that the UE authentication is completed;

When the UE and the target UE in the request to discover nearby UEs correspond to the same Prose server, if it is determined based on the Prose ID list and/or Prose Server ID in the request to discover nearby UEs that the target UE is allowed to be used by the If the information found by the UE is found, it is determined that the UE authentication is completed.

19. The system according to claim 17, wherein the system further includes: MME, configured to obtain authorization information from the Prose Server when receiving resource request information sent after the UE starts the discovery operation, and respond to the UE The base station sends authorization information;

The base station is configured to configure wireless resources for the UE according to the authorization information sent by the Prose Server.

20. The system according to claim 19, wherein the Prose server is configured to send authorization information to the base station accessed by the UE through the MME after passing the authentication of the UE;

The base station is configured to configure wireless resources for the UE according to the authorization information forwarded by the MME.

21. The system of claim 19, wherein,

The Prose server is configured to configure the frequency band resources required for monitoring of proximity service discovery for the base station accessed by each target UE.

22. The system of claim 19, wherein,

The Prose Server is configured such that when the target UE and the source UE correspond to the same Prose Server, after receiving the Prose ID reported by the target UE or the base station to which the target UE is connected, the discovery result of the Prose ID of the target UE is returned to the Prose Server. Describe UE.

23. The system of claim 19, wherein,

The Prose Server is configured such that when the target UE and the source UE correspond to different Prose Servers, if used as the target Prose Server, the Prose ID sent by the target UE will be sent to the Prose Server corresponding to the source UE as the discovery result of the target UE; If it serves as the source Prose Server, the discovery result sent by the target Prose Server is sent to the source UE.

24. A UE, the UE includes: a request module and a transceiver module; wherein,

The request module is configured to initiate a request to the corresponding Prose Server to discover nearby UEs; the transceiver module is configured to broadcast discovery signaling using wireless resources configured by the base station, so that the target UE sends a request to the Prose Server according to the received discovery signaling. After sending its own Prose ID as the discovery result, it receives the discovery result returned by the Prose Server.

25. The UE according to claim 24, wherein,

The transceiver module is configured to receive the information of all UEs that are allowed to be discovered issued by the application server.

A list of Prose IDs and/or corresponding Prose Server IDs.

26. The UE according to claim 25, wherein, The transceiver module is configured such that when the target UE and the source UE correspond to the same Prose Server, if the UE is the target UE, it will detect in real time whether discovery signaling is received, and if it is received, obtain it from the discovery signaling. The Prose ID of the UE is sent to the source UE through the Prose Server as the discovery result.

27. The UE according to claim 25, wherein,

The transceiver module is configured such that when the target UE and the source UE correspond to different Prose Servers, if the UE is the target UE, it will detect in real time whether discovery signaling is received, and if it is received, obtain it from the discovery signaling. The Prose ID of the UE is used as the discovery result of the target UE, and the discovery result is sent to the source UE through the corresponding target Prose Server and the Prose Server corresponding to the source UE.

28. The UE according to claim 25, wherein,

The transceiver module is configured to provide the Prose ID corresponding to the pilot information in the detected discovery signaling to the Prose Server via the base station when the UE is located as the target UE _.