CN105052183A

CN105052183A - Proximity discovery method and device

Info

Publication number: CN105052183A
Application number: CN201380003794.0A
Authority: CN
Inventors: 马景旺; 欧阳国威
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-12-13
Filing date: 2013-12-13
Publication date: 2015-11-11
Anticipated expiration: 2033-12-13
Also published as: WO2015085591A1; CN105052183B

Abstract

Provided are a proximity discovery method and device. The method comprises: receiving, by a proximity service (ProSe) server, a first prompt message sent to the ProSe server after a second UE monitors an announcing message sent by a first UE, the first prompt message comprising a ProSe ID of the first UE, a discovery identification code of the first UE and information about the second UE; the information about the second UE comprising a ProSe ID of the second UE and also comprising an application user identifier of the second UE or a discovery identification code of the second UE; sending to the first UE, by the ProSe server, a second prompt message, the second prompt message comprising the discovery identification code of the first UE and the information about the second UE; receiving, by the ProSe server, a response message sent by the first UE; and sending to the second UE, by the ProSe server, an acknowledgement message used for notifying the second UE that the first UE has received the second prompt message and has learnt that the second UE has responded to the announcing message.

Description

Proximity discovery method and device

Closely find method and apparatus

Technical field

Method and apparatus are closely found the present invention relates to the communication technology, more particularly to one kind.Background technology

In a wireless communication system, with the extensive use that social class is applied, closely function is more and more important, and closely function includes closely finding and short-range communication function.For example, user wants to understand good friend in time and occurs or leave around.The function of closely finding by be people live and work become more facilitate.For example, after user reaches office, by closely discovery feature, can recognize which colleague is also up to office at once.Short-range communication function can make directly to set up communication by close range communication techniques between user.

The closely discovery procedure of prior art is：First user equipment（User Equipment, abbreviation UE) directly broadcasting announcements message Announcing message, the notice message includes the first UE mark, for example closely business（Proximity Service, referred to as：ProSe) the mark distributed for the first UE：ProSe UE ID and discovery identification code Announcing code.It was found that identification code is the safety in order to protect user and application and by the temporary mark of network allocation, for identifying application or service that the UE can be provided, or identifies user (Application user) of some application in the UE;2nd UE monitors the discovery message of surrounding using reception device, if it find that the announcing code of the good friend of oneself, 2nd UE judge module is notified that the application ProSe Application of corresponding closely business its good friend in its vicinity, other 2nd UE is also required to notify the first UE, for example, the 2nd UE can be sent to the first UE finds response message response.

But, the closely discovery method of prior art, the first UE may not receive all discovery response messages that have sent transmitted by the UE of response message.For example simultaneously when the 2nd UE and the 3rd UE is sent to the first UE finds response message, the first UE may only receive a discovery response message, i.e. the reliability and success rate of this method are relatively low, the content of the invention

The embodiment of the present invention provide one kind closely finds method and apparatus, with improve closely find can By property and success rate.

In a first aspect, the embodiment of the present invention, which provides one kind, closely finds method, including：

Closely service server receives the first prompting message that the 2nd UE is sent after the notice message of the first UE transmissions is listened to the closely service server, first prompting message includes closely service identification, the discovery identification code of the first UE and the 2nd UE of the first UE information, the information of the 2nd UE include the 2nd UE closely service identification and it is following at least one:The application user mark and the discovery identification code of the 2nd UE of 2nd UE；

The closely service server sends the second prompting message to the first UE, and second prompting message includes the discovery identification code of the first UE and the information of the 2nd UE；

The closely service server receives the response message that the first UE is sent, and the response message is used to show that the first UE has been received by second prompting message, knows that the 2nd UE has responded the notice message；

The closely service server sends confirmation message to the 2nd UE, and the confirmation message is used to notify the first UE to have been received by second prompting message to the 2nd UE, knows that the 2nd UE has responded the notice message.

In the first possible implementation of first aspect, the 2nd UE is received before the first prompting message sent after listening to the notice message of the first UE transmissions to the closely service server in the closely service server, in addition to：

The closely service server receives the registration request that the first UE is sent；

The closely service server is sent in registration confirmation message, the registration confirmation message comprising the closely service identification that the closely service server is the first UE distribution and the discovery identification code allowed to the first UE.

According to the first possible implementation of first aspect, in second of possible implementation, before the closely service server sends the second prompting message to the first UE, in addition to：The closely service server recognizes the first UE according to the closely service identification of the first UE, and checks whether the first UE allows the discovery identification code for sending the first UE；

The closely service server sends the second prompting message to the first UE, including：If the closely service server determines that the first UE allows the discovery identification code for sending the first UE, the second prompting message is sent to the first UE.

According to second of possible implementation of first aspect, in the third possible implementation, The first UE is recognized according to the closely service identification of the first UE in the closely service server, and after checking whether the first UE allows to send the discovery identification code of the first UE, in addition to：

If it is not, then the closely service server sends response message to the 2nd UE, the response message is used to show that the notice message that the first UE is sent does not pass through mandate.

According to second of first aspect or the third possible implementation, in the 4th kind of possible implementation, the closely service server recognizes the first UE according to the closely service identification of the first UE, and check whether the first UE allows the discovery identification code for sending the first UE, including：

The first UE included in first prompting message described in the closely service server judging discovery identification code whether be the permission that the closely service server is the first UE distribution discovery identification code；

If so, then the closely service server determines that the first UE allows the discovery identification code for sending the first UE；

If it is not, then the closely service server determines that the first UE does not allow to send described first

UE discovery identification code.

According to the first any one into the 4th kind of possible implementation of first aspect, first aspect, in the 5th kind of possible implementation, also include the mark for the application that the 2nd UE is included in first prompting message, before the closely service server sends the second prompting message to the first UE, in addition to：

The closely service server sends the application user mark that the first UE and the 2nd UE closely service identification is carried in authentication request message, the authentication request message or the first UE and the 2nd UE is carried to the corresponding application server of mark of the application；

The closely service server receives the identity validation message that the corresponding application server of mark of the application is returned, and the identity validation message is used to show that the first UE and the 2nd UE allows mutual find.

Second aspect, the embodiment of the present invention provides one kind and closely finds method, including：

First UE broadcast transmission notice messages, the notice message includes the mark of the first UE and the discovery identification code of the first UE；

First UE receives the second prompting message that closely service server is sent, and described second carries Show that message includes the discovery identification code of the first UE and the 2nd UE information, wherein, the information of 2nd UE is the 2nd UE to be carried in after listening to the notice message that the first UE is sent by the first prompting message for being sent to the closely service server, closely service identification including the 2nd UE of the information of the 2nd UE and it is following at least one：The application user mark and the discovery identification code of the 2nd UE of 2nd UE；

First UE sends response message to the closely service server, and the response message is used to show that the first UE has been received by second prompting message, knows that the 2nd UE has responded the notice message.

In the first possible implementation of second aspect, before the first UE sends response message to the closely service server, in addition to：

First UE confirm the first UE in the first prompting message that the closely service server is sent discovery identification code whether be the first UE transmissions discovery identification code；

If so, then the application user mark of the 2nd UE in first prompting message or the discovery identification code of the 2nd UE determine whether that the 2nd UE has found the first UE;

First UE sends response message to the closely service server, including：

When the first UE judges to allow the 2nd UE to find a UE, response message is sent to the closely service server.

According in the first possible implementation of second aspect or second aspect, in second of possible implementation, before the first UE broadcast transmission notice messages, in addition to：

First UE sends registration request to the closely service server；

Comprising the closely service server is the closely service identification of the first UE distribution and finds identification code in the registration confirmation message that closely service server is sent described in the first UE receptions, the registration confirmation message.

The third aspect, the embodiment of the present invention provides one kind and closely finds method, including：

2nd UE receives the notice message of the first UE broadcast transmissions, and the notice message includes the mark of the first UE and the discovery identification code of the first UE；

2nd UE determines to need to find mutually with the first UE according to the discovery identification code of the first UE；

2nd UE sends in the first prompting message, first prompting message to closely service server and includes the closely service identification for including the first UE, the discovery identification code of the first UE With the information of the 2nd UE, the information of the 2nd UE include the 2nd UE closely service identification and it is following at least one：The application user mark and the discovery identification code of the 2nd UE of 2nd UE；

The confirmation message that closely service server is sent described in the 2nd UE receptions, the confirmation message sends the second prompting message to the first UE for the closely service server and receives what is sent after the response message that the first UE is returned, the confirmation message is used to notify the first UE to have been received by second prompting message to the 2nd UE, knows that the 2nd UE has responded the notice message.

In the first possible implementation of the third aspect, before the notice message that the 2nd UE receives the first UE broadcast transmissions, in addition to：

2nd UE sends registration request to the closely service server；

Comprising the closely service server is the closely service identification of the 2nd UE distribution and finds identification code in the registration confirmation message that closely service server is sent described in the 2nd UE receptions, the registration confirmation message.

According to the first possible implementation of the third aspect, in second of possible implementation, after the registration confirmation message that closely service server is sent described in the 2nd UE receptions, in addition to：

2nd UE receives the first UE of closely service server transmission discovery identification code.

Fourth aspect, the embodiment of the present invention provides one kind and closely finds method, including：

Application server receives the authentication request message that closely service server is sent, the closely service identification that the first UE and the 2nd UE is carried in the authentication request message or the application user mark for carrying the first UE and the 2nd UE, the first UE and the 2nd UE are the user of the corresponding application of the application server；

The application server the first UE and the 2nd UE relation according to the corresponding application user marks of the first UE and the 2nd UE corresponding application user identity validation allows after finding mutually, identity validation message is returned to the closely service server, the identity validation message is used to show that the first UE and the 2nd UE allows mutual find.

5th aspect, the embodiment of the present invention provides a kind of closely service server, including：

Receiving module, for receiving the first prompting message that the 2nd UE is sent after the notice message of the first UE transmissions is listened to the closely service server, first prompting message includes described first The information of UE closely service identification, the discovery identification code of the first UE and the 2nd UE, the information of the 2nd UE include the 2nd UE closely service identification and it is following at least one:The application user mark and the discovery identification code of the 2nd UE of 2nd UE；

Sending module, for sending the second prompting message to the first UE, second prompting message includes the discovery identification code of the first UE and the information of the 2nd UE；

The receiving module, is additionally operable to receive the response message that the first UE is sent, the response message is used to show that the first UE has been received by second prompting message, knows that the 2nd UE has responded the notice message；

The sending module, is additionally operable to send confirmation message to the 2nd UE, the confirmation message is used to notify the first UE to have been received by second prompting message to the 2nd UE, knows described second

UE has responded the notice message.

In the first possible implementation of the 5th aspect,

The receiving module, is additionally operable to receive the registration request that the first UE is sent；

The sending module, is additionally operable to send in registration confirmation message, the registration confirmation message comprising the closely service identification that the closely service server is the first UE distribution and the discovery identification code allowed to the first UE.

According to the first possible implementation of the 5th aspect, in second of possible implementation, in addition to：

Check module, for before the closely service server sends the second prompting message to the first UE, first UE is recognized according to the closely service identification of the first UE, and checks whether the first UE allows the discovery identification code for sending the first UE；

The sending module specifically for：

If the inspection module determines that the first UE allows the discovery identification code for sending the first UE, the second prompting message is sent to the first UE.

According to second of possible implementation of the 5th aspect, in the third possible implementation, if sending module determines that the first UE does not allow the discovery identification code for sending the first UE specifically for the inspection module, response message then is sent to the 2nd UE, the response message is used to show that the notice message that the first UE is sent does not pass through mandate.

According to the 5th aspect second or the third possible implementation, in the 4th kind of possible implementation, it is described inspection module specifically for： Judge the first UE included in first prompting message discovery identification code whether be the permission that the closely service server is the first UE distribution discovery identification code；

If, it is determined that the first UE allows the discovery identification code for sending the first UE；If not, it is determined that the first UE does not allow the discovery identification code for sending the first UE.According to the 5th aspect, any one of the first of 5th aspect into the 4th kind of possible implementation, in the 5th kind of possible implementation, the sending module, it is additionally operable in first prompting message also include the mark for the application that the 2nd UE is included, before the closely service server sends the second prompting message to the first UE, authentication request message is sent to the corresponding application server of the mark of the application, the closely service identification that the first UE and the 2nd UE is carried in the authentication request message or the application user mark for carrying the first UE and the 2nd UE；

The receiving module, is additionally operable to receive the identity validation message that the corresponding application server of mark of the application is returned, the identity validation message is used to show that the first UE and the 2nd UE allows mutual find.

6th aspect, the embodiment of the present invention provides a kind of user equipment (UE), and the UE is the first UE, and the first UE includes：

Sending module, for broadcast transmission notice message, the notice message includes the mark of the first UE and the discovery identification code of the first UE；

Receiving module, for receiving the second prompting message that closely service server is sent, second prompting message includes the discovery identification code of the first UE and the 2nd UE information, wherein, the information of 2nd UE is the 2nd UE to be carried in after listening to the notice message that the first UE is sent by the first prompting message for being sent to the closely service server, closely service identification including the 2nd UE of the information of the 2nd UE and it is following at least one：The application user mark and the discovery identification code of the 2nd UE of 2nd UE；

The sending module, is additionally operable to send response message to the closely service server, the response message is used to show that the first UE has been received by second prompting message, knows that the 2nd UE has responded the notice message.

In the first possible implementation of the 6th aspect, in addition to：

Judge module, the first UE's in the first prompting message for before the sending module sends response message to the closely service server, confirming the closely service server transmission It was found that whether identification code is discovery identification code that the first UE is sent；

The sending module specifically for：

When the judge module judges to allow the 2nd UE to find a UE, response message is sent to the closely service server.

According in the first possible implementation of the 6th aspect or the 6th aspect, in second of possible implementation, the sending module is additionally operable to send registration request to the closely service server；The receiving module, it is the closely service identification and find identification code that the first UE is distributed to be additionally operable in the registration confirmation message that closely service server is sent described in receiving, the registration confirmation message comprising the closely service server.

7th aspect, the embodiment of the present invention provides a kind of user equipment (UE), and the UE is the 2nd UE, and the 2nd UE includes：

Receiving module, the notice message for receiving the first UE broadcast transmissions, the notice message includes the mark of the first UE and the discovery identification code of the first UE；

Judge module, for being determined to need to find mutually with the first UE according to the discovery identification code of the first UE；

Sending module, for sending the first prompting message to closely service server, include the closely service identification for including the first UE, the discovery identification code of the first UE and the 2nd UE information in first prompting message, the information of the 2nd UE include the 2nd UE closely service identification and it is following at least one：The application user mark and the discovery identification code of the 2nd UE of 2nd UE；

The receiving module, be additionally operable to receive described in closely confirmation message from service server to transmission, the confirmation message sends the second prompting message to the first UE for the closely service server and receives what is sent after the response message that the first UE is returned, the confirmation message is used to notify the first UE to have been received by second prompting message to the 2nd UE, knows that the 2nd UE has responded the notice message.

In the first possible implementation of the 7th aspect, the sending module is additionally operable to send registration request to the closely service server；

The receiving module, is additionally operable to the registration confirmation message that closely service server is sent described in receiving, Comprising the closely service server is the 2nd UE closely service identification distributed and finds identification code in the registration confirmation message.

According to the first possible implementation of the 7th aspect, in second of possible implementation, the receiving module, be additionally operable to after the registration confirmation message that the closely service server is sent is received, receive described in closely the first UE of service server transmission discovery identification code.

Eighth aspect, the embodiment of the present invention provides a kind of application server, including：

Receiving module, for receiving the authentication request message that closely service server is sent, the closely service identification that the first UE and the 2nd UE is carried in the authentication request message or the application user mark for carrying the first UE and the 2nd UE, the first UE and the 2nd UE are the user of the corresponding application of the application server；

Sending module, relation for the first UE and the 2nd UE described in the corresponding application user identity validation according to the corresponding application user marks of the first UE and the 2nd UE allows after finding mutually, identity validation message is returned to the closely service server, the identity validation message is used to show that the first UE and the 2nd UE allows mutual find.

It is provided in an embodiment of the present invention closely to find method and apparatus, pass through the first UE broadcast transmission notice messages, listen to discovery identification codes of the 2nd UE of notice message in notice message and judge that the rear of discovery sends the first prompting message to closely service server mutually by needs and the first UE, and carry the discovery identification code of the first UE transmissions and the 2nd UE information, so that closely service server sends the second prompting message to the first UE, the first UE is notified to have found the first UE information on the 2nd UE, first UE is received after the second prompting message to closely service server transmission response message, the information has been known in expression, closely service server sends confirmation message to the 2nd UE again；It can be seen that, first UE and the 2nd UE realize the process closely found under the auxiliary of proximity server, due to the intervention of proximity server, especially the second prompting message is sent from closely service server to the first UE, the first UE is notified to have found the first UE information on the 2nd UE, the first UE can be improved and receive the success rate of the information, so as to improve the success rate closely found；Also, due to not directly transmitting message between the 2nd UE and the first UE, therefore, it is possible to prevent attacker from being attacked by way of pretending to be some UE, so as to improve security；Simultaneously as the intervention of proximity server, the method for the present embodiment is visible and controllable for operator, more meets the interests of operator. Brief description of the drawings is in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.Fig. 1 closely has found the network structure of system for the present invention；

Fig. 2 closely has found the interaction diagrams of embodiment of the method one for the present invention；

Fig. 3 closely has found the interaction diagrams of embodiment of the method two for the present invention；

Fig. 4 is the structural representation of closely service server embodiment one of the invention；

Fig. 5 is the structural representation of closely service server embodiment two of the invention；

Fig. 6 is the structural representation of UE embodiments one of the present invention；

Fig. 7 is the structural representation of UE embodiments two of the present invention；

Fig. 8 is the structural representation of UE embodiments three of the present invention；

Fig. 9 is the structural representation of application server embodiment one of the present invention；

Figure 10 is the structural representation of closely service server embodiment three of the invention；

Figure 11 is the structural representation of UE example IVs of the present invention；

Figure 12 is the structural representation of UE embodiments five of the present invention；

Figure 13 is the structural representation of application server embodiment two of the present invention.Embodiment is to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

The closely business in 3GPP Rel-12（ProSe function) is by wireless access on the global land of evolution (Evolution-Universal Terrestrial Radio Access, simple standing grain that：E-UTRAN) supported with UE.For supporting ProSe UE to can be found that the UE of other supports ProSe in close position, and short-range communication connection can be set up by close range communication techniques, communicated Directly communicated and be transmitted without core net between Cheng Zhong, equipment.UE for residing in the support ProSe on network, network side will be controlled and configure to its ProSe characteristic, and UE performs ProSe according to ProSe Characteristics Controls parameter and operated.The parameter of ProSe characteristics can include：Whether it can be found that whether other ProSe UE, can be found by other ProSe UE；Whether ProSe communications can be carried out；Whether it can be found that by other public land mobile networks（Public Land Mobile Network, referred to as：PLMN the support ProSe of E-UTRAN services) UE;ProSe has found the maximum short range grade that can be used.

In a network, the server of closely business is provided with each PLMN（ProSe Function) the ProSe characteristics of control to(for) UE is carried out, can be by visited place closely service server for the UE in visited network（V-ProSe Function) and ownership place closely service server (H-ProSe Function) carries out the control of ProSe characteristics together.Closely service server can store UE ProSe configuration informations, include the parameter of ProSe characteristics mentioned above, so as to reach the purpose of control ProSe characteristics.

As stated in the Background Art, in existing closely discovery method, directly interacted between the UE for supporting ProSe, UE to be found can not reliably receive other UE discovery response message.Due to directly being interacted between UE, existing closely to find that method also has safety problem, concrete reason is：It was found that response message includes the discovery identification code of user, attacker can by detect notice message announcing message standing grain mouthful find response message response message know which find the corresponding user of identification code be UE to be found (being set to the first UE) good friend.Potential threaten is that attacker can palm off the first UE and send the first UE notice message announcing message, so as to get the first UE good friend（Be set to the 2nd UE or the 3rd UE) discovery response response message, at this moment the 2nd UE and the 3rd UE cannot recognize that the UE be personation the first UE, so that the file of oneself further is sent into attacker；Also, attacker can be sent to the first UE with counterfeit 2nd UE and find response response message, and at this moment the first UE can not recognize that the UE is attacker, and accordingly, there exist potential safety hazard.In addition, directly interacted between UE because prior art closely finds that the Radio Resource that method is used belongs in operator, but this method, without any network equipment, i.e. this method is invisible and uncontrolled for operator, does not meet the interests of operator.

For the ease of description, UE to be found is represented with the first UE, that is, sends notice message announcing message UE, discovery response response message are not sent with the 2nd UE tables UE, wherein, comprising closely service application in the first UE and the 2nd UE（ProSe application), and, at least a identical application is included in first UE and the 2nd UE, such as QQ, wechat, and the corresponding users of the first UE user corresponding with the 2nd UE is the user of at least a same application.

It should be noted that the first UE and the 2nd UE may be multiple, only represented in the embodiment of the present invention and accompanying drawing with one.And when implementing, actual UE can be provided simultaneously with the UE of the first UE and the 2nd UE function, i.e., one while notice message is sent, the notice message of other UE transmissions can also be monitored, and is responded.

Fig. 1 closely has found the network structure of system for the present invention.As shown in Figure 1, the closely discovery method that the present invention is provided, closely service server (ProSe Function) is set in a network, by the closely discovery procedure of short-range communication server- aided, wherein, closely service server is connected with mobile management entity and gateway, and UE carries out information exchange by the access network of cordless communication network with closely service server.Fig. 2 closely has found the interaction diagrams of embodiment of the method one for the present invention, as shown in Fig. 2 the present embodiment is related to the first UE, the 2nd UE and closely service server（ProSe Function) between interactive operation, wherein, the first UE be the 2nd UE in application in the user in addition to the 2nd UE.The method of the present embodiment can include：

Step 201, the first UE broadcast transmission notice messages, the notice message include the mark of the first UE and the discovery identification code of the first UE.

Specifically, the notice message（Announcing message) closely to find notice message, it is all UE near the first UE that it, which receives object, as long as that is, neighbouring UE opens the monitor function of closely service application, you can listen to the notice message.The mark for the first UE that the notice message includes can be the first UE closely service identification（ProSe UE ID), the ProSe UE ID can be distributed for UE when carrying out closely service log-on by ProSe function, for recognizing the first UE;The discovery identification code for the first UE that notice message includes（Announcing code) can also in ProSe service log-ons by ProSe function be the first UE in closely service application（ProSe application) distribution.Wherein, it is found that identification code is used to identify some user or groups of users or some application, it can be user, groups of users or application in the first UE or UE wishes the user, groups of users or the application that find.

First UE can declare that the first UE applies user, or peripherad UE to broadcast some for oneself wishing to find for some by the peripherad UE of discovery identification code in the notice message User.

Step 202, the 2nd UE determine to need to find mutually with the first UE according to the discovery identification code of the first UE.

Specifically, the 2nd UE is listened to after the notice message of the first UE transmissions, can determine users of the first UE for the application in the 2nd UE according to identification code is found（Application user) good friend or the 2nd UE in some user be the first UE wish find user, such as the first UE and the 2nd UE include wechat, and the 2nd UE good friend that the corresponding users of the first UE are the corresponding wechat users of the 2nd UE is determined according to the discovery identification code in the first UE notice message, then the 2nd UE can determine to need to find mutually with the first UE.When implementing, the 2nd UE can show good friend corresponding to the first UE nearby on interface, and determine after user confirms to need to find mutually with the first UE.

Specifically, the application layer that some closely one or more good friend of service-user in the 2nd UE can be stored in 2nd UE identifies corresponding with good friend user discovery identification code, the 2nd UE so as to identified according to the discovery identification code received the first UE transmissions the corresponding users of announcing code whether be user in the 2nd UE good friend.

Step 203, the 2nd UE send the first prompting message to closely service server, include the closely service identification for including the first UE, the discovery identification code of the first UE and the 2nd UE information in first prompting message, the information of the 2nd UE include the 2nd UE closely service identification and it is following at least one：The application user mark and the discovery identification code of the 2nd UE of 2nd UE.

Accordingly, the first prompting message that the 2nd UE is sent is received apart from service server, first prompting message can be closely discovery prompting（ProSe Discovery Alert) message.2nd UE asks the discovery announcement operations of the first UE of closely service server inspection in network by first prompting message（Send notice message）Whether it is the operation authorized, meanwhile, ask proximity server closely to find that response is sent to the first UE if by authorizing.

Wherein, the application user mark for the 2nd UE that the message includes and the discovery identification code of the 2nd UE are used to make the first UE know the 2nd UE correspondences and which good friend user of which application.

In this step, UE and closely service server is set up communication and can set up by the connection of user plane and communicates, or can pass through mobile management entity（Mobile Management Entity, referred to as：MME communication) is set up.Wherein, the connection of user plane is specially：UE is linked into mobile communication After network, mobile network is that the network that the UE is set up in data cube computation, mobile network is UE distribution Internet Protocols（Internet protocol, referred to as：IP) address, the UE is to pass through the gateway accessing to outside data network.Therefore, UE can pass through dynamic domain name system（Domain Name System, referred to as：DNS) inquiry obtains the IP address of proximity server, then sets up the connection with proximity server using IP agreement.

When being connected by user plane, UE is linked into closely service server by its user plane set up；When setting up communication connection by mobile management entity, the message for being sent to closely business is encapsulated in Non-Access Stratum by UE（Non Access Stratum, referred to as：NAS mobile management entity) is sent in message, closely service server is then sent to by mobile management entity.

Step 204, the closely service server send the second prompting message to the first UE, and second prompting message includes the discovery identification code of the first UE and the information of the 2nd UE.

Accordingly, the first UE receives the second prompting message that the proximity server is sent, wherein, the information for the 2nd UE that second prompting message includes is used to inform the first UE:2nd UE has responded the first UE notice message, and the 2nd UE information can include the 2nd UE closely service identification and it is following at least one：2nd UE application user mark and the 2nd UE discovery identification code, the 2nd UE application user mark and find identification code be used for show the 2nd UE it is corresponding which apply user.

Further, before the step 204, the closely service server first can recognize the first UE according to the closely service identification of the first UE, and check whether the first UE allows the discovery identification code for sending the first UE, when it is determined that the first UE allows to send the discovery identification code of the first UE, step 204 is performed;When it is determined that the first UE does not possess the authority for the discovery identification code for sending the first UE, then response message can be sent to the 2nd UE, the response message is used to show that the notice message that the first UE is sent does not pass through mandate.

Specifically, when the first UE carries out closely service log-on, closely service server is that the first UE distributes the discovery identification code that the first UE allows to use, while closely service server preserves the discovery identification code that the first UE can be used.The discovery identification code that closely service server can be used according to the first UE of preservation checks whether the first UE has the authority for sending the discovery identification code.Specifically, the first UE included in the first prompting message described in the closely service server judging discovery identification code whether be the permission that the closely service server is the first UE distribution discovery identification code；If so, then the closely service server determines that the first UE allows to send the first UE Discovery identification code；If it is not, then the closely service server determines that the first UE does not allow the discovery identification code for sending the first UE.

Step 205, the first UE send response message to the closely service server, and the response message is used to show that the first UE has been received by second prompting message, has known that the 2nd UE has responded the notice message.

Accordingly, the closely service server receives the response message that the first UE is sent.Specifically, good friends of first UE according to corresponding to the second prompting message obtained in step 204 can learn the 2nd UE is nearby, at this moment the first UE can send response message to closely service server, confirm that it has known that the 2nd UE has responded the notice message.

Further, before step 205, the first UE can first confirm the first UE in the first prompting message that the closely service server is sent discoverys identification code whether be the first UE transmissions discovery identification code；If it is not, then the first UE can not do any response, the wrong information of the discovery identification code can also be returned to service server, make closely service server stop this and closely find；If so, then the application user mark of the 2nd UE in first prompting message or the discovery identification code of the 2nd UE determine whether that the 2nd UE has found the first UE;When the first UE judges to allow the 2nd UE to find a UE, then perform step 205.

It is to illustrate that the first UE determines good friend corresponding to the 2nd UE nearby to perform step 205.

Specifically, first UE can preserve the log recording that it sends notice message, discovery identification code including transmission and the time sent, can be checked by the log recording the first UE in the first prompting message that the closely service server is sent discoverys identification code whether be the first UE transmissions discovery identification code.

Step 206, the closely service server send confirmation message to the 2nd UE, and the confirmation message is used to notify the first UE to have been received by second prompting message to the 2nd UE, knows that the 2nd UE has responded the notice message.

Accordingly, the 2nd UE receives the confirmation message of the closely service server transmission, at this moment, and the 2nd UE can determine good friend corresponding to the first UE nearby, so that the first UE and the 2nd UE complete the process found mutually.

The present embodiment, pass through the first UE broadcast transmission notice messages, listen to discovery identification codes of the 2nd UE of notice message in notice message and judge that the rear of discovery sends the first prompting message to closely service server mutually by needs and the first UE, and carry the discovery identification code and the 2nd UE of the first UE transmissions Information, so that closely service server sends the second prompting message to the first UE, the first UE is notified to have found the first UE information on the 2nd UE, first UE is received after the second prompting message to closely service server transmission response message, the information has been known in expression, and closely service server sends confirmation message to the 2nd UE again；It can be seen that, first UE and the 2nd UE realize the process closely found under the auxiliary of proximity server, due to the intervention of proximity server, especially the second prompting message is sent from closely service server to the first UE, the first UE is notified to have found the first UE information on the 2nd UE, the first UE can be improved and receive the success rate of the information, so as to improve the success rate closely found；Also, due to not directly transmitting message between the 2nd UE and the first UE, therefore, it is possible to prevent attacker from being attacked by way of pretending to be some UE, so as to improve security；Simultaneously as the intervention of proximity server, the method for the present embodiment is visible and controllable for operator, more meets the interests of operator.

Further, before the method described in above-described embodiment is performed, in addition to the first UE registers the process of closely business, concretely comprises the following steps：

Similarly, the 2nd UE registration process is also included, its step is similar with the first UE registration process.It should be noted that, after the first UE or the 2nd UE completes registration, it will also maintain closely other UE that service server is sent discovery identification code, such as the first UE or the 2nd UE can send request to obtain the discovery identification code of the good friend in some application to closely service server, so, 2nd UE is after the notice message of the first UE transmissions is listened to, it can recognize whether the UE corresponds to the good friend of oneself by finding identification code, so as to judge whether to response.

Further, in above-described embodiment, if the first UE and the 2nd UE reside in different PLMN, but between the first UE and the 2nd UE in the range of closely, such as the first UE and the 2nd UE is in same place, but using the network service of different operators, at this moment, the method for above-described embodiment also needs to the interaction between the closely service server that is related in two PLMN.Be set to the first UE provide ProSe service be ProSe Function A, for the 2nd UE provides ProSe service be ProSe function B.In above-mentioned step 203, the 2nd UE sends the first prompting message to ProSe function B, and ProSe function B are according to the first UE included in the first prompting message closely business mark It is ProSe Function A to identify the closely service server for serving the first UE, and this is due to that closely service identification includes the PLMN mark PLMN ID for the PLMN that the UE is resident and serves the mark of the closely service server of the UE（ProSe Function ID), then ProSe function B can be according to the fully qualified domain name between the first UE closely service identification closely service server corresponding with ProSe Function A structures（Fully Qualified Domain Name, referred to as：FQDN), then domain name service is passed through（Domain Name Service, referred to as：DNS) mode of inquiry obtains ProSe Function A IP address, so as to establish communication connection, the first prompting message that step 203 is received is transmitted to ProSe Function A, and then ProSe Function A can continue executing with step 204.

Fig. 3 closely has found the interaction diagrams of embodiment of the method two for the present invention, as shown in figure 3, the present embodiment is related to the first UE, the 2nd UE and closely service server and application server（App Server) between interactive operation, wherein, the first UE and the 2nd UE be in the user in the application corresponding to application server, embodiment the application corresponding to application server be, for example,：QQ, wechat etc..The present embodiment is on the basis of the corresponding embodiments of the method for above-mentioned Fig. 2, add the information exchange closely between service server and application server, so as to judge whether the first UE and the 2nd UE can find mutually, to improve the security for closely finding method.The method of the present embodiment can include：

Step 301, the first UE broadcast transmission notice messages, the notice message include the first UE mark and the first UE discovery identification code.

Step 302, the 2nd UE determine to need to find mutually with the first UE according to the first UE discovery identification code.

Step 303, the 2nd UE send the first prompting message to closely service server, the closely service identification for including the first UE, the first UE discovery identification code and the 2nd UE information are included in first prompting message, also include application identities, wherein, the closely service identification of the 2nd UE information including the 2nd UE and it is following at least one：2nd UE application user mark and the 2nd UE discovery identification code, the first UE and the 2nd UE are the user of the application corresponding to the application identities.

Step 304, closely service server send the application user mark that the first UE and the 2nd UE closely service identification is carried in authentication request message, the authentication request message or the first UE and the 2nd UE is carried to the corresponding application server of the application identities.

When implementing, the corresponding application server of the application identities can store the corresponding closely service identification of its user and application user identify between mapping relations, the pass between each user that is also stored with System, for example whether being good friend.

Specifically, user in UE can be when enabling corresponding application, UE initiates the registration process of application to corresponding application server, UE mark is supplied to application server, so as to which application server can record its user and UE marks corresponding relation used in the user, the UE that application server can also be provided according to closely service server identify corresponding user.In addition, user can also set which good friend it can be found that oneself, whether application server can find mutually and closely service server described in inspection result is notified according to two users of configuration information inspection of user.

Step 305, the corresponding application server of the application identities return to identity validation message to closely service server, and the identity validation message is used to show that the first UE and the 2nd UE allows mutual find.

Specifically, the application server confirm the first UE and the 2nd UE whether allow to find mutually can according to both whether be good friend principle, this can also not limited according to other principles, the embodiment of the present invention.

If the application server confirms that the first UE and the 2nd UE does not allow mutual discovery, the message for not allowing to find mutually can be then returned to the closely service server, at this moment, closely service server can directly send the message for finding to stop to the 2nd UE.

Step 306, closely service server send the second prompting message to the first UE, and second prompting message includes the discovery identification code of the first UE and the information of the 2nd UE.

Step 307, the first UE send response message to closely service server, and the response message is used to show that the first UE has been received by second prompting message, has known that the 2nd UE has responded the notice message.

Step 308, closely service server send confirmation message to the 2nd UE, and the confirmation message is used to notify the first UE to have been received by second prompting message to the 2nd UE, knows that the 2nd UE has responded the notice message.

At this moment, the 2nd UE can determine good friend corresponding to the first UE nearby, so that the first UE and the 2nd UE complete the process found mutually.

The present embodiment, by after closely service server receives the first prompting message, add closely service server and send authentication request message to application server, application server confirms whether the first UE and the 2nd UE can find mutually, only when confirming to allow to find mutually, proximity server just sends the second prompting message to the first UE, so as to further improve the security for closely finding method. Fig. 4 is the structural representation of closely service server embodiment one of the invention, as shown in figure 4, the closely service server 400 of the present embodiment can include：Receiving module 401 and sending module 402, wherein,

Receiving module 401, for receiving the first prompting message that the 2nd UE is sent after the notice message of the first UE transmissions is listened to the closely service server, first prompting message includes closely service identification, the discovery identification code of the first UE and the 2nd UE of the first UE information, the information of the 2nd UE include the 2nd UE closely service identification and it is following at least one：The application user mark and the discovery identification code of the 2nd UE of 2nd UE；

Sending module 402, for sending the second prompting message to the first UE, second prompting message includes the discovery identification code of the first UE and the information of the 2nd UE；

The receiving module 401, is additionally operable to receive the response message that the first UE is sent, the response message is used to show that the first UE has been received by second prompting message, knows that the 2nd UE has responded the notice message；

The sending module 402, is additionally operable to send confirmation message to the 2nd UE, the confirmation message is used to notify the first UE to have been received by second prompting message to the 2nd UE, knows that the 2nd UE has responded the notice message.

Further, the receiving module 401, can be also used for receiving the registration request that the first UE is sent；

The sending module 402, can be also used for sending in registration confirmation message, the registration confirmation message comprising the closely service identification that the closely service server is the first UE distribution and the discovery identification code allowed to the first UE.

The closely service server of the present embodiment, can be used for performing the correspondence technical scheme that closely service server is performed in embodiment of the method shown in Fig. 2, and its realization principle is similar, and here is omitted.

The closely service server of the present embodiment, receive the first prompting message of the 2nd UE transmissions, and according to the first UE carried in the first prompting message discovery identification code and the 2nd UE information, the second prompting message is sent to the first UE, the first UE is notified to have found the first UE information on the 2nd UE, first UE is received after the second prompting message to closely service server transmission response message, the information has been known in expression, and closely service server sends confirmation message to the 2nd UE again；As can be seen that the first UE and the 2nd UE realize the process closely found under the auxiliary of proximity server, due to the intervention of proximity server, especially send the second prompting to the first UE from closely service server and disappear Breath, notifies the first UE to have found the first UE information on the 2nd UE, it is possible to increase the first UE receives the success rate of the information, so as to improve the success rate closely found；Also, due to not directly transmitting message between the 2nd UE and the first UE, therefore, it is possible to prevent attacker from being attacked by way of pretending to be some UE, so as to improve security；Simultaneously as the intervention of proximity server, the method for the present embodiment is visible and controllable for operator, more meets the interests of operator.

Fig. 5 is the structural representation of closely service server embodiment two of the invention, as shown in figure 5, the closely service server 500 of the present embodiment can also include on the basis of embodiment illustrated in fig. 4：Check module 403, the inspection module 403, it can be used for before the closely service server sends the second prompting message to the first UE, first UE is recognized according to the closely service identification of the first UE, and checks whether the first UE allows the discovery identification code for sending the first UE；Correspondingly, the sending module 402 specifically for：

If the inspection module 403 determines that the first UE allows the discovery identification code for sending the first UE, the second prompting message is sent to the first UE.

Further, if sending module 402 determines that the first UE does not allow the discovery identification code for sending the first UE specifically for the inspection module 403, response message then is sent to the 2nd UE, the response message is used to show that the notice message that the first UE is sent does not pass through mandate.

Further, it is described inspection module 403 specifically for：

Judge the first UE included in first prompting message discovery identification code whether be the permission that the closely service server is the first UE distribution discovery identification code；

If, it is determined that the first UE allows the discovery identification code for sending the first UE；If not, it is determined that the first UE does not allow the discovery identification code for sending the first UE.Further, the sending module 402, it can be also used for also including the mark for the application that the 2nd UE is included in first prompting message, before the closely service server sends the second prompting message to the first UE, the application user mark that the first UE and the 2nd UE closely service identification is carried in authentication request message, the authentication request message or the first UE and the 2nd UE is carried is sent to the corresponding application server of the mark of the application；

The receiving module 401, is additionally operable to receive the identity validation message that the corresponding application server of mark of the application is returned, the identity validation message is used to show that the first UE and the 2nd UE allows mutual find. The closely service server of the present embodiment, can be used for performing the correspondence technical scheme that closely service server is performed in embodiment of the method shown in Fig. 2 or Fig. 3, and its implementing principle and technical effect is similar, and here is omitted.

Fig. 6 is the structural representation of UE embodiments one of the present invention, and the UE of the present embodiment corresponds to the first UE, as shown in fig. 6, the UE 600 of the present embodiment can include：Sending module 601 and receiving module 602, wherein,

Sending module 601, for broadcast transmission notice message, the notice message includes the mark of the first UE and the discovery identification code of the first UE；

Receiving module 602, for receiving the second prompting message that closely service server is sent, second prompting message includes the discovery identification code of the first UE and the 2nd UE information, wherein, the information of 2nd UE is the 2nd UE to be carried in after listening to the notice message that the first UE is sent by the first prompting message for being sent to the closely service server, closely service identification including the 2nd UE of the information of the 2nd UE and it is following at least one：The application user mark and the discovery identification code of the 2nd UE of 2nd UE；

The sending module 601, is additionally operable to send response message to the closely service server, the response message is used to show that the first UE has been received by second prompting message, knows that the 2nd UE has responded the notice message.

The UE of the present embodiment, can be used for performing the technical scheme that the first UE of correspondence is performed in embodiment of the method shown in Fig. 2, and its realization principle is similar, and here is omitted.

The UE of the present embodiment, pass through broadcast transmission notice message, and receive the second prompting message that closely service server is sent, second prompting message includes the discovery identification code of the first UE and the 2nd UE information, wherein, the information of 2nd UE is the 2nd UE to be carried in after listening to the notice message that the first UE is sent by the first prompting message for being sent to the closely service server, therefore the UE of the present embodiment can know the information that the first UE is had found on the 2nd UE, then response message is sent to closely service server, the information has been known in expression, so that closely service server sends confirmation message to the 2nd UE again；It can be seen that, first UE and the 2nd UE realize the process closely found under the auxiliary of proximity server, due to the intervention of proximity server, especially the second prompting message is sent from closely service server to the first UE, the first UE is notified to have found the first UE information on the 2nd UE, the first UE can be improved and receive the success rate of the information, so as to improve the success rate closely found；Also, due between the 2nd UE and the first UE Message is not directly transmitted, therefore, it is possible to prevent attacker from being attacked by way of pretending to be some UE, so as to improve security；Simultaneously as the intervention of proximity server, the method for the present embodiment is visible and controllable for operator, more meets the interests of operator.

Fig. 7 is the structural representation of UE embodiments two of the present invention, as shown in fig. 7, the UE 700 of the present embodiment can also include on the basis of embodiment illustrated in fig. 6：Judge module 603, the judge module 603 can be used for：

Before the sending module 601 sends response message to the closely service server, confirm the first UE in the first prompting message that the closely service server is sent discovery identification code whether be the first UE transmissions discovery identification code；

If so, then the application user mark of the 2nd UE in first prompting message or the discovery identification code of the 2nd UE determine whether that the 2nd UE has found the first UE;The sending module 601 specifically for：

When the judge module 603 judges to allow the 2nd UE to find a UE, response message is sent to the closely service server.

Further, the sending module 601, is additionally operable to send registration request to the closely service server；

The receiving module 602, it is the closely service identification and find identification code that the first UE is distributed to be additionally operable in the registration confirmation message that closely service server is sent described in receiving, the registration confirmation message comprising the closely service server.

The UE of the present embodiment, can be used for performing correspondence first in embodiment of the method shown in Fig. 2 or Fig. 3

The technical scheme that UE is performed, its implementing principle and technical effect are similar, and here is omitted.

Fig. 8 is the structural representation of UE embodiments three of the present invention, and the UE of the present embodiment corresponds to the 2nd UE, as shown in figure 8, the UE 800 of the present embodiment can include：Receiving module 801, judge module 802 and sending module 803, wherein,

Receiving module 801, the notice message for receiving the first UE broadcast transmissions, the notice message includes the mark of the first UE and the discovery identification code of the first UE；

Judge module 802, for being determined to need to find mutually with the first UE according to the discovery identification code of the first UE；

Sending module 803, the closely service identification for including the first UE, the discovery of the first UE are included for being sent to closely service server in the first prompting message, first prompting message The information of identification code and the 2nd UE, the information of the 2nd UE include the 2nd UE closely service identification and it is following at least one：The application user mark and the discovery identification code of the 2nd UE of 2nd UE；

The receiving module 801, be additionally operable to receive described in closely confirmation message from service server to transmission, the confirmation message sends the second prompting message to the first UE for the closely service server and receives what is sent after the response message that the first UE is returned, the confirmation message is used to notify the first UE to have been received by second prompting message to the 2nd UE, knows that the 2nd UE has responded the notice message.

Further, the sending module 803, is additionally operable to send registration request to the closely service server；

The receiving module 801, it is the closely service identification and find identification code that the 2nd UE is distributed to be additionally operable in the registration confirmation message that closely service server is sent described in receiving, the registration confirmation message comprising the closely service server.

Further, the receiving module 801, it is additionally operable to after the registration confirmation message that closely service server is sent described in receiving, the first UE of closely service server transmission discovery identification code is received, so that the judge module 802 can determine the need for finding mutually with the first UE according to the first UE carried in the notice message discovery identification code.

The UE of the present embodiment, can be used for performing the technical scheme that the 2nd UE of correspondence is performed in embodiment of the method shown in Fig. 2 or Fig. 3, and its realization principle is similar, and here is omitted.

The UE of the present embodiment, pass through the first prompting message after the notice message of the first UE transmissions is listened to by being sent to the closely service server, first prompting message includes the discovery identification code of the first UE and the 2nd UE information, make closely service server to the first UE send the second prompting message, to notify the first UE to have found the first UE information on the 2nd UE, and closely service server receive the first UE transmission known that the 2nd UE has found the first UE response message of information after, 2nd UE is by receiving the confirmation message that closely service server is sent, complete the process found mutually with the first UE；It can be seen that, first UE and the 2nd UE realize the process closely found under the auxiliary of proximity server, due to the intervention of proximity server, especially the second prompting message is sent from closely service server to the first UE, the first UE is notified to have found the first UE information on the 2nd UE, the first UE can be improved and receive the success rate of the information, so as to improve the success rate closely found；Also, due to not directly transmitted between the 2nd UE and the first UE Message, therefore, it is possible to prevent attacker from being attacked by way of pretending to be some UE, so as to improve security；Simultaneously as the intervention of proximity server, the method for the present embodiment is visible and controllable for operator, more meets the interests of operator.

Fig. 9 is the structural representation of application server embodiment one of the present invention, and the application corresponding to the application server of the present embodiment is, for example,：QQ, wechat etc..As shown in figure 9, the application server 900 of the present embodiment can include：Receiving module 901 and sending module 902, wherein,

Receiving module 901, for receiving the authentication request message that closely service server is sent, the closely service identification that the first UE and the 2nd UE is carried in the authentication request message or the application user mark for carrying the first UE and the 2nd UE, the first UE and the 2nd UE are the user of the corresponding application of the application server；

Sending module 902, relation for the first UE and the 2nd UE described in the corresponding application user identity validation according to the corresponding application user marks of the first UE and the 2nd UE allows after finding mutually, identity validation message is returned to the closely service server, the identity validation message is used to show that the first UE and the 2nd UE allows mutual find.

The application server of the present embodiment, can be used for performing the technical scheme that correspondence application server is performed in embodiment of the method shown in Fig. 3, and its realization principle is similar, and here is omitted.

The application server of the present embodiment, by after closely service server receives the first prompting message, authentication request message is sent to application server, application server confirms whether the first UE and the 2nd UE can find mutually, only identity validation message is sent when confirming to allow to find mutually to the closely service server, show that the first UE and the 2nd UE allows mutual find, proximity server just sends the second prompting message to the first UE, so as to further improve the security closely found.

Figure 10 is the structural representation of closely service server embodiment three of the invention, and as shown in Figure 10, the closely service server of the present embodiment can include：Receiver 1001, transmitter 1002 and processor 1003, memory 1004 and bus 1005 are also show in figure, the receiver 1001, processor 1002, transmitter 1003, memory 1004 are connected by bus 1005 and complete mutual communication.

The bus 1005 can be industry standard architecture（Industry Standard Architecture, ISA) bus, external equipment interconnection（Peripheral Component, PCI) bus or extended industry-standard architecture（Extended lndustry Standard Architecture, EISA) bus etc..The bus 1005 can be divided into address bus, data/address bus, controlling bus etc..For ease of representing, in Figure 10 only Represented with a thick line, it is not intended that only one bus or a type of bus.

Memory 1004 is used to store executable program code, and the program code includes computer-managed instruction.Memory 1004 may include high-speed RAM memory, it is also possible to also including nonvolatile memory (non-volatile memory), for example, at least one magnetic disk storage.

Processor 1003 can be a central processing unit（Central Processing Unit, CPU), or specific integrated circuit（Application Specific Integrated Circuit, ASIC), or it is arranged to implement one or more integrated circuits of the embodiment of the present invention.

Wherein, receiver 1001, for receiving the first prompting message that the 2nd UE is sent after the notice message of the first UE transmissions is listened to the closely service server, first prompting message includes closely service identification, the discovery identification code of the first UE and the 2nd UE of the first UE information, the information of the 2nd UE include the 2nd UE closely service identification and it is following at least one：The application user mark and the discovery identification code of the 2nd UE of 2nd UE；Transmitter 1002, for sending the second prompting message to the first UE, second prompting message includes the discovery identification code of the first UE and the information of the 2nd UE；

The receiver 1001, is additionally operable to receive the response message that the first UE is sent, the response message is used to show that the first UE has been received by second prompting message, knows that the 2nd UE has responded the notice message；

The transmitter 1002, is additionally operable to send confirmation message to the 2nd UE, the confirmation message is used to notify the first UE to have been received by second prompting message to the 2nd UE, knows that the 2nd UE has responded the notice message.

Further, the receiver 1001, can be also used for receiving the registration request that the first UE is sent；

The transmitter 1002, can be also used for sending in registration confirmation message, the registration confirmation message comprising the closely service identification that the closely service server is the first UE distribution and the discovery identification code allowed to the first UE.

Further, processor 1003, it can be used for before the closely service server sends the second prompting message to the first UE, first UE is recognized according to the closely service identification of the first UE, and checks whether the first UE allows the discovery identification code for sending the first UE；Correspondingly, the transmitter 1002 specifically for：

If the processor 1003 determines that the first UE allows the discovery identification for sending the first UE Code, then send the second prompting message to the first UE.

Further, if transmitter 1002 determines that the first UE does not allow the discovery identification code for sending the first UE specifically for the processor 1003, response message then is sent to the 2nd UE, the notice message that the UE of sound one is sent is not by authorizing.

If, it is determined that the first UE allows the discovery identification code for sending the first UE；If not, it is determined that the first UE does not allow the discovery identification code for sending the first UE.Further, the transmitter 1002, it can be also used for also including the mark for the application that the 2nd UE is included in first prompting message, before the closely service server sends the second prompting message to the first UE, the application user mark that the first UE and the 2nd UE closely service identification is carried in authentication request message, the authentication request message or the first UE and the 2nd UE is carried is sent to the corresponding application server of the mark of the application；

The receiver 1001, is additionally operable to receive the identity validation message that the corresponding application server of mark of the application is returned, the identity validation message is used to show that the first UE and the 2nd UE allows mutual find.

The closely service server of the present embodiment, can be used for performing the correspondence technical scheme that closely service server is performed in embodiment of the method shown in Fig. 2 or Fig. 3, and its realization principle is similar, and here is omitted.

The closely service server of the present embodiment, receive the first prompting message of the 2nd UE transmissions, and according to the first UE carried in the first prompting message discovery identification code and the 2nd UE information, the second prompting message is sent to the first UE, the first UE is notified to have found the first UE information on the 2nd UE, first UE is received after the second prompting message to closely service server transmission response message, the information has been known in expression, and closely service server sends confirmation message to the 2nd UE again；It can be seen that, first UE and the 2nd UE realize the process closely found under the auxiliary of proximity server, due to the intervention of proximity server, especially the second prompting message is sent from closely service server to the first UE, the first UE is notified to have found the first UE information on the 2nd UE, the first UE can be improved and receive the success rate of the information, so as to improve the success rate closely found；Also, due to not directly transmitting message between the 2nd UE and the first UE, therefore, it is possible to prevent attacker by pretending to be certain Each and every one UUEE mode formula is hit into every trade attack, from so as to and can enough improve height and pacify the full property of safety；；With with constantly, by due in low coverage distance from clothes service business device device Jie intervene into, book apply in fact the square method of example example to in fortune operation battalion business business come come have a talk about be cocoa see and with can controllable control,, more more meet the sharp interests benefit for closing fortune operation battalion business business..

Figure Figure 111 1 is the junction structure structure signal intention figure that the bright UUEE of book hair invention applies an example four or four in fact, the real UUEE for applying example example of book is to correspondence Ying Yu in the one one 55 UUEE, as shown as shown in the institutes of figure Figure 111 1,, book in fact apply example example UUEE can with bag include：：Hair transmission send device device 11110011, receive receive device device 11110022 and and reason reason device device 11110033 everywhere, also show in figure figure show out to know clearly storage reservoir device 11110044 and with total Bus Wire 11110055,, the hair send device device 11110011, receive receive device device 11110022, everywhere reason reason device device 11000033, storage reservoir device 11110044 all total downlink connection of Bus Wire 11110055 connect and and it is complete complete into mutually mutually mutually between letter all believe..

Total Bus Wire 11110055 can be to be the industrial quasi- body system tying structure structure of industry mark standard of work（（IInndduussttrryy SSttaannddaarrdd AArrcchhiitteeccttuurree, IISSAA)) total Bus Wire, outside portion equipment it is standby it is mutual repeatedly（（PPeeriripphheerarall CCoommppoonneenntt, PPCCII)) total Bus Wire or or quasi- body system tying structure structure ((the EExxtteennddeedd IInndduussttrryy SSttaannddaarrdd AArrcchhiitteeccttuurree of the industrial industry mark mark 1100 of extension Zhan works,, EEIISSAA)) total Bus Wire etc...Total Bus Wire 11110055 can be divided into for the total Bus Wire in way address location, number data total Bus Wire, control control make total Bus Wire etc...For to be easy to represent to show in table, in figure Figure 111 1 in only with the rule one by one, roughly line line table represents to show, but but table does not represent to show have one total Bus Wire or or to plant total Bus Wire of genre types type one by one one by one..

Reservoir device 11110044 is stored with being used to perform stroke program sequence code code from generation to generation in storage storage cocoa, code code bag includes meter and calculates calculation machine machine behaviour's operation work and refer to instruct and makes the Cheng Chengxu sequences from generation to generation..Storage reservoir device 11110044 be able to may can be included containing the high RRAAMM storage reservoir devices that hasten, also reservoir device 1155 ((nnoonn-- vvoollaattiillee mmeemmoorryy)) can also can may be stored including including the volatile property lost of Fei Feiyi,, example for example such as at least lack one one by one magnetic rigid disk take inventory storage reservoir device..

Reason reason device device 11110033 can be to be a center centre reason reason device device everywhere one by one everywhere（（CCeennttrarall PProrocceessssiinngg UUnniitt, CCPPUU)), or or person be special specific fixed to be integrated into circuit road（（AApppplliiccaattiioonn SSppeecciiffiicc IInntteeggrraatteedd CCiirrccuuiitt, AASSIICC)),, or or person be to be set into real to apply that book invention is bright to be applied the one of example one by one or or the more each and every one be integrated into electric circuit road in fact with configuration..

Its wherein in, device device 11110011 is sent in hair transmission, with in it is wide broadcast transmission and send accuse announcement message breath all,, it is described state accuse all in message breath in bag include institute's mark mark for stating 2200 the 1st UUEE know and and institute's hair for stating the one one UUEE find that existing knowledge recognizes other code yard；；

Receive and receive device device 11110022, with for receiving low coverage distance from the two or two prompting that clothes service business device device hair send of being engaged in of industry business and showing the message breath that disappears in receiving, it is described state the two or two show in message breath in bag include institute's hair for stating the one one UUEE and find existing to recognize other code yard and the letter information breath with the two or two UUEE, its wherein in, the letter information breath for stating the two or two UUEE for institute it is described state the two or two UUEE prison hear institute it is described state that the one one UUEE hairs send accuse all after message breath after all to institute it is described state low coverage distance be engaged in taking from industry business service device device of being engaged in send out the send the 1st show the message that disappears cease in take carrying band, the breath breath bag of letter letter 2255 for stating the two or two UUEE include institute's low coverage distance for stating the two or two UUEE from industry business business mark mark knowledge and and with following at least less one one by one：：It is described state the two or two UUEE should apply with known with mark mark in every family and and institute's hair for stating the two or two UUEE find the existing other code yard of knowledge identification；；

Hair transmission is stated described in institute and send device device 11110011, also with for stating low coverage distance in to institute is described from the business clothes service business device device hair transmission of industry business and sending response to disappear message breath, institute is described state response should message breath be used in table show to state described in bright institute the one one UUEE receive described in state the two or two and propose prompting and show the message breath that disappears,, know know institute it is described state the two or two UUEE and ring the response institute's announcement announcement message all of stating that should know clearly cease..

Institute it is described state hair transmission send device device 11110011 to institute it is described state low coverage distance be engaged in from industry business clothes service be engaged in device device send out transmission send response should message breath before before, really recognize institute of institute State the first UE in the first prompting message that closely service server is sent discoverys identification code whether be the first UE transmissions discovery identification code；

The transmitter 1101 specifically for：

When the processor 1103 judges to allow the 2nd UE to find a UE, response message is sent to the closely service server.

Further, the transmitter 1101, is additionally operable to send registration request to the closely service server；

The receiver 1102, it is the closely service identification and find identification code that the first UE is distributed to be additionally operable in the registration confirmation message that closely service server is sent described in receiving, the registration confirmation message comprising the closely service server.

The UE of the present embodiment, can be used for performing the technical scheme that the first UE of correspondence is performed in embodiment of the method shown in Fig. 2 or Fig. 3, and its realization principle is similar, and here is omitted.

The UE of the present embodiment, pass through broadcast transmission notice message, and receive the second prompting message that closely service server is sent, second prompting message includes the discovery identification code of the first UE and the 2nd UE information, wherein, the information of 2nd UE is the 2nd UE to be carried in after listening to the notice message that the first UE is sent by the first prompting message for being sent to the closely service server, therefore the UE of the present embodiment can know the information that the first UE is had found on the 2nd UE, then response message is sent to closely service server, the information has been known in expression, so that closely service server sends confirmation message to the 2nd UE again；It can be seen that, first UE and the 2nd UE realize the process closely found under the auxiliary of proximity server, due to the intervention of proximity server, especially the second prompting message is sent from closely service server to the first UE, the first UE is notified to have found the first UE information on the 2nd UE, the first UE can be improved and receive the success rate of the information, so as to improve the success rate closely found；Also, due to not directly transmitting message between the 2nd UE and the first UE, therefore, it is possible to prevent attacker from being attacked by way of pretending to be some UE, so as to improve security；Simultaneously as the intervention of proximity server, the method for the present embodiment is visible and controllable for operator, more meets the interests of operator.

Figure 12 is the structural representation of UE embodiments five of the present invention, and the UE of the present embodiment corresponds to the 2nd UE, and as shown in figure 12, the UE of the present embodiment can include：Receiver 1201, the and of processor 1202 Memory 1204 and bus 1205 are also show in transmitter 1203, figure, the receiver 1201, processor 1202, transmitter 1203, memory 1204 are connected by bus 1205 and complete mutual communication.

The bus 1205 can be industry standard architecture（Industry Standard Architecture, ISA) bus, external equipment interconnection（Peripheral Component, PCI) bus or extended industry-standard architecture（Extended lndustry Standard Architecture, EISA) bus etc..The bus 1205 can be divided into address bus, data/address bus, controlling bus etc..For ease of representing, only represented in Figure 12 with a thick line, it is not intended that only one bus or a type of bus.

Memory 1204 is used to store executable program code, and the program code includes computer-managed instruction.Memory 1204 may include high-speed RAM memory, it is also possible to also including nonvolatile memory (non-volatile memory), for example, at least one magnetic disk storage.

Processor 1202 can be a central processing unit（Central Processing Unit, CPU), or specific integrated circuit（Application Specific Integrated Circuit, ASIC), or it is arranged to implement one or more integrated circuits of the embodiment of the present invention.

Wherein, receiver 1201, the notice message for receiving the first UE broadcast transmissions, the notice message includes the mark of the first UE and the discovery identification code of the first UE；

Processor 1202, for being determined to need to find mutually with the first UE according to the discovery identification code of the first UE；

Transmitter 1203, for sending the first prompting message to closely service server, include the closely service identification for including the first UE, the discovery identification code of the first UE and the 2nd UE information in first prompting message, the information of the 2nd UE include the 2nd UE closely service identification and it is following at least one：The application user mark and the discovery identification code of the 2nd UE of 2nd UE；

The receiver 1201, be additionally operable to receive described in closely confirmation message from service server to transmission, the confirmation message sends the second prompting message to the first UE for the closely service server and receives what is sent after the response message that the first UE is returned, the confirmation message is used to notify the first UE to have been received by second prompting message to the 2nd UE, knows that the 2nd UE has responded the notice message.

Further, the transmitter 1203, is additionally operable to send registration request to the closely service server；

The receiver 1201, it is what the 2nd UE was distributed to be additionally operable in the registration confirmation message that closely service server is sent described in receiving, the registration confirmation message comprising the closely service server Closely service identification and find identification code.

Further, the receiver 1201, it is additionally operable to after the registration confirmation message that closely service server is sent described in receiving, the first UE of closely service server transmission discovery identification code is received, so that the processor 1202 can determine the need for finding mutually with the first UE according to the first UE carried in the notice message discovery identification code.

The UE of the present embodiment, pass through the first prompting message after the notice message of the first UE transmissions is listened to by being sent to the closely service server, first prompting message includes the discovery identification code of the first UE and the 2nd UE information, make closely service server to the first UE send the second prompting message, to notify the first UE to have found the first UE information on the 2nd UE, and closely service server receive the first UE transmission known that the 2nd UE has found the first UE response message of information after, 2nd UE is by receiving the confirmation message that closely service server is sent, complete the process found mutually with the first UE；It can be seen that, first UE and the 2nd UE realize the process closely found under the auxiliary of proximity server, due to the intervention of proximity server, especially the second prompting message is sent from closely service server to the first UE, the first UE is notified to have found the first UE information on the 2nd UE, the first UE can be improved and receive the success rate of the information, so as to improve the success rate closely found；Also, due to not directly transmitting message between the 2nd UE and the first UE, therefore, it is possible to prevent attacker from being attacked by way of pretending to be some UE, so as to improve security；Simultaneously as the intervention of proximity server, the method for the present embodiment is visible and controllable for operator, more meets the interests of operator.

Figure 13 is the structural representation of application server embodiment two of the present invention, and the application corresponding to the application server of the present embodiment is, for example,：QQ, wechat etc..As shown in figure 13, the application server of the present embodiment can include：Receiver 1301 and transmitter 1302, processor 1303, memory 1304 and bus 1305 are also show in figure, the receiver 1301, transmitter 1302, processor 1303, memory 1304 are connected by bus 1305 and complete mutual communication.

The bus 1305 can be industry standard architecture（Industry Standard Architecture, ISA) bus, external equipment interconnection（Peripheral Component, PCI) bus or extended industry-standard architecture（Extended lndustry Standard Architecture, EISA) bus etc..The bus 1305 can be divided into address bus, data/address bus, controlling bus etc..For ease of representing, only represented in Figure 13 with a thick line, it is not intended that only one bus or a type of bus. Memory 1304 is used to store executable program code, and the program code includes computer-managed instruction.Memory 1304 may include high-speed RAM memory, it is also possible to also including nonvolatile memory (non-volatile memory), for example, at least one magnetic disk storage.

Processor 1303 can be a central processing unit（Central Processing Unit, CPU), or specific integrated circuit（Application Specific Integrated Circuit, ASIC), or it is arranged to implement one or more integrated circuits of the embodiment of the present invention.

Wherein, receiver 1301, for receiving the authentication request message that closely service server is sent, the closely service identification that the first UE and the 2nd UE is carried in the authentication request message or the application user mark for carrying the first UE and the 2nd UE, the first UE and the 2nd UE are the user of the corresponding application of the application server；

Transmitter 1302, relation for the first UE and the 2nd UE described in the corresponding application user identity validation according to the corresponding application user marks of the first UE and the 2nd UE allows after finding mutually, identity validation message is returned to the closely service server, the identity validation message is used to show that the first UE and the 2nd UE allows mutual find.

One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can be completed by the related hardware of programmed instruction, foregoing program can be stored in a computer read/write memory medium, the program upon execution, performs the step of including above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.

Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part or all technical characteristic；And these modifications or replacement, and The essence of appropriate technical solution is not set to depart from the scope of various embodiments of the present invention technical scheme.

Claims

Claims

1st, one kind closely finds method, it is characterised in that including：

Closely service server receives the first prompting message that the 2nd UE is sent after the notice message of the first UE transmissions is listened to the closely service server, first prompting message includes closely service identification, the discovery identification code of the first UE and the 2nd UE of the first UE information, the information of the 2nd UE include the 2nd UE closely service identification and it is following at least one:The application user mark and the discovery identification code of the 2nd UE of 2nd UE；

The closely service server sends the second prompting message to the first UE, and second prompting message includes the discovery identification code of the first UE and the information of the 2nd UE；

The closely service server receives the response message that the first UE is sent, and the response message is used to show that the first UE has been received by second prompting message, knows that the 2nd UE has responded the notice message；

The closely service server sends confirmation message to the 2nd UE, and the confirmation message is used to notify the first UE to have been received by second prompting message to the 2nd UE, knows that the 2nd UE has responded the notice message.

2nd, according to the method described in claim 1, it is characterized in that, the 2nd UE is received before the first prompting message sent after listening to the notice message of the first UE transmissions to the closely service server in the closely service server, in addition to：

The closely service server receives the registration request that the first UE is sent；

The closely service server is sent in registration confirmation message, the registration confirmation message comprising the closely service identification that the closely service server is the first UE distribution and the discovery identification code allowed to the first UE.

3rd, method according to claim 2, it is characterised in that before the closely service server sends the second prompting message to the first UE, in addition to：

The closely service server recognizes the first UE according to the closely service identification of the first UE, and checks whether the first UE allows the discovery identification code for sending the first UE；

The closely service server sends the second prompting message to the first UE, including：If the closely service server determines that the first UE allows the discovery identification code for sending the first UE, the second prompting message is sent to the first UE.

4th, method according to claim 3, it is characterised in that in the closely service server First UE is recognized according to the closely service identification of the first UE, and after checking whether the first UE allows to send the discovery identification code of the first UE, in addition to：

If it is not, then the closely service server sends response message to the 2nd UE, the response message is used to show that the notice message that the first UE is sent does not pass through mandate.

5th, the method according to claim 3 or 4, it is characterized in that, the closely service server recognizes the first UE according to the closely service identification of the first UE, and checks whether the first UE allows the discovery identification code for sending the first UE, including：

The first UE included in first prompting message described in the closely service server judging discovery identification code whether be the permission that the closely service server is the first UE distribution discovery identification code；

If so, then the closely service server determines that the first UE allows the discovery identification code for sending the first UE；

If it is not, then the closely service server determines that the first UE does not allow the discovery identification code for sending the first UE.

6th, the method according to any one of claim 1 ~ 5, it is characterized in that, also include the mark for the application that the 2nd UE is included in first prompting message, before the closely service server sends the second prompting message to the first UE, in addition to：

The closely service server sends the application user mark that the first UE and the 2nd UE closely service identification is carried in authentication request message, the authentication request message or the first UE and the 2nd UE is carried to the corresponding application server of mark of the application；

The closely service server receives the identity validation message that the corresponding application server of mark of the application is returned, and the identity validation message is used to show that the first UE and the 2nd UE allows mutual find.

7th, one kind closely finds method, it is characterised in that including：

First UE broadcast transmission notice messages, the notice message includes the mark of the first UE and the discovery identification code of the first UE；

First UE receives the second prompting message that closely service server is sent, second prompting message includes the discovery identification code of the first UE and the 2nd UE information, wherein, the information of 2nd UE is the 2nd UE to be carried in after listening to the notice message that the first UE is sent by the first prompting message for being sent to the closely service server, the packet of the 2nd UE Include the 2nd UE closely service identification and it is following at least one：The application user mark and the discovery identification code of the 2nd UE of 2nd UE；

First UE sends response message to the closely service server, and the response message is used to show that the first UE has been received by second prompting message, knows that the 2nd UE has responded the notice message.

8th, method according to claim 7, it is characterised in that before the first UE sends response message to the closely service server, in addition to：

First UE confirm the first UE in the first prompting message that the closely service server is sent discovery identification code whether be the first UE transmissions discovery identification code；

If so, then the application user mark of the 2nd UE in first prompting message or the discovery identification code of the 2nd UE determine whether that the 2nd UE has found the first UE;

First UE sends response message to the closely service server, including：

When the first UE judges to allow the 2nd UE to find a UE, response message is sent to the closely service server.

9th, the method according to claim 7 or 8, it is characterised in that before the first UE broadcast transmission notice messages, in addition to：

First UE sends registration request to the closely service server；

Comprising the closely service server is the closely service identification of the first UE distribution and finds identification code in the registration confirmation message that closely service server is sent described in the first UE receptions, the registration confirmation message.

10th, one kind closely finds method, it is characterised in that including：

2nd UE receives the notice message of the first UE broadcast transmissions, and the notice message includes the mark of the first UE and the discovery identification code of the first UE；

2nd UE determines to need to find mutually with the first UE according to the discovery identification code of the first UE；

2nd UE sends the first prompting message to closely service server, include the closely service identification for including the first UE, the discovery identification code of the first UE and the 2nd UE information in first prompting message, the information of the 2nd UE include the 2nd UE closely service identification and it is following at least one：The application user mark and the discovery identification code of the 2nd UE of 2nd UE； The confirmation message that closely service server is sent described in the 2nd UE receptions, the confirmation message sends the second prompting message to the first UE for the closely service server and receives what is sent after the response message that the first UE is returned, the confirmation message is used to notify the first UE to have been received by second prompting message to the 2nd UE, knows that the 2nd UE has responded the notice message.

11st, method according to claim 10, it is characterised in that before the notice message that the 2nd UE receives the first UE broadcast transmissions, in addition to：

2nd UE sends registration request to the closely service server；

Comprising the closely service server is the closely service identification of the 2nd UE distribution and finds identification code in the registration confirmation message that closely service server is sent described in the 2nd UE receptions, the registration confirmation message.

12nd, method according to claim 11, it is characterised in that after the registration confirmation message that closely service server is sent described in being received in the 2nd UE, in addition to：

2nd UE receives the first UE of closely service server transmission discovery identification code.

13rd, one kind closely finds method, it is characterised in that including：

Application server receives the authentication request message that closely service server is sent, the closely service identification that the first UE and the 2nd UE is carried in the authentication request message or the application user mark for carrying the first UE and the 2nd UE, the first UE and the 2nd UE are the user of the corresponding application of the application server；

The application server the first UE and the 2nd UE relation according to the corresponding application user marks of the first UE and the 2nd UE corresponding application user identity validation allows after finding mutually, identity validation message is returned to the closely service server, the identity validation message is used to show that the first UE and the 2nd UE allows mutual find.

14th, a kind of closely service server, it is characterised in that including：

Receiving module, for receiving the first prompting message that the 2nd UE is sent after the notice message of the first UE transmissions is listened to the closely service server, first prompting message includes closely service identification, the discovery identification code of the first UE and the 2nd UE of the first UE information, the information of the 2nd UE include the 2nd UE closely service identification and it is following at least one:The application user mark and the discovery identification code of the 2nd UE of 2nd UE；

Sending module, for sending the second prompting message, second prompting message to the first UE Include the discovery identification code of the first UE and the information of the 2nd UE；

The receiving module, is additionally operable to receive the response message that the first UE is sent, the response message is used to show that the first UE has been received by second prompting message, knows that the 2nd UE has responded the notice message；

The sending module, is additionally operable to send confirmation message to the 2nd UE, the confirmation message is used to notify the first UE to have been received by second prompting message to the 2nd UE, knows that the 2nd UE has responded the notice message.

15th, closely service server according to claim 14, it is characterised in that：

The receiving module, is additionally operable to receive the registration request that the first UE is sent；

The sending module, is additionally operable to send in registration confirmation message, the registration confirmation message comprising the closely service identification that the closely service server is the first UE distribution and the discovery identification code allowed to the first UE.

16th, closely service server according to claim 15, it is characterised in that also include：Check module, for before the closely service server sends the second prompting message to the first UE, first UE is recognized according to the closely service identification of the first UE, and checks whether the first UE allows the discovery identification code for sending the first UE；

The sending module specifically for：

If the inspection module determines that the first UE allows the discovery identification code for sending the first UE, the second prompting message is sent to the first UE.

17th, closely service server according to claim 16, it is characterised in that：

If sending module determines that the first UE does not allow the discovery identification code for sending the first UE specifically for the inspection module, response message then is sent to the 2nd UE, the response message is used to show that the notice message that the first UE is sent does not pass through mandate.

18th, the closely service server according to claim 16 or 17, it is characterised in that the inspection module specifically for：

Judge the first UE included in first prompting message discovery identification code whether be the permission that the closely service server is the first UE distribution discovery identification code；

If, it is determined that the first UE allows the discovery identification code for sending the first UE；If not, it is determined that the first UE does not allow the discovery identification code for sending the first UE.19th, the closely service server according to any one of claim 14 ~ 18, its feature exists In：

The sending module, it is additionally operable in first prompting message also include the mark for the application that the 2nd UE is included, before the closely service server sends the second prompting message to the first UE, the application user mark that the first UE and the 2nd UE closely service identification is carried in authentication request message, the authentication request message or the first UE and the 2nd UE is carried is sent to the corresponding application server of the mark of the application；

The receiving module, is additionally operable to receive the identity validation message that the corresponding application server of mark of the application is returned, the identity validation message is used to show that the first UE and the 2nd UE allows mutual find.

20th, a kind of user equipment (UE), it is characterised in that the UE is the first UE, the first UE includes：

Sending module, for broadcast transmission notice message, the notice message includes the mark of the first UE and the discovery identification code of the first UE；

Receiving module, for receiving the second prompting message that closely service server is sent, second prompting message includes the discovery identification code of the first UE and the 2nd UE information, wherein, the information of 2nd UE is the 2nd UE to be carried in after listening to the notice message that the first UE is sent by the first prompting message for being sent to the closely service server, closely service identification including the 2nd UE of the information of the 2nd UE and it is following at least one：The application user mark and the discovery identification code of the 2nd UE of 2nd UE；

The sending module, is additionally operable to send response message to the closely service server, the response message is used to show that the first UE has been received by second prompting message, knows that the 2nd UE has responded the notice message.

21st, UE according to claim 20, it is characterised in that also include：

Judge module, for before the sending module sends response message to the closely service server, confirm the first UE in the first prompting message that the closely service server is sent discovery identification code whether be the first UE transmissions discovery identification code；

If so, then the application user mark of the 2nd UE in first prompting message or the discovery identification code of the 2nd UE determine whether that the 2nd UE has found the first UE;

The sending module specifically for：

When the judge module judges to allow the 2nd UE to find a UE, to the low coverage Response message is sent from service server.

22nd, the UE according to claim 20 or 21, it is characterised in that：

The sending module, is additionally operable to send registration request to the closely service server；The receiving module, it is the closely service identification and find identification code that the first UE is distributed to be additionally operable in the registration confirmation message that closely service server is sent described in receiving, the registration confirmation message comprising the closely service server.

23rd, a kind of user equipment (UE), it is characterised in that the UE is the 2nd UE, the 2nd UE includes：

Receiving module, the notice message for receiving the first UE broadcast transmissions, the notice message includes the mark of the first UE and the discovery identification code of the first UE；

Judge module, for being determined to need to find mutually with the first UE according to the discovery identification code of the first UE；

Sending module, for sending the first prompting message to closely service server, include the closely service identification for including the first UE, the discovery identification code of the first UE and the 2nd UE information in first prompting message, the information of the 2nd UE include the 2nd UE closely service identification and it is following at least one：The application user mark and the discovery identification code of the 2nd UE of 2nd UE；

The receiving module, be additionally operable to receive described in closely confirmation message from service server to transmission, the confirmation message sends the second prompting message to the first UE for the closely service server and receives what is sent after the response message that the first UE is returned, the confirmation message is used to notify the first UE to have been received by second prompting message to the 2nd UE, knows that the 2nd UE has responded the notice message.

24th, UE according to claim 23, it is characterised in that：

The sending module, is additionally operable to send registration request to the closely service server；The receiving module, it is the closely service identification and find identification code that the 2nd UE is distributed to be additionally operable in the registration confirmation message that closely service server is sent described in receiving, the registration confirmation message comprising the closely service server.

25th, UE according to claim 24, it is characterised in that：

The receiving module, is additionally operable to after the registration confirmation message that the closely service server is sent is received, receive described in closely the first UE of service server transmission discovery identification code. 26th, a kind of application server, it is characterised in that including：

Receiving module, for receiving the authentication request message that closely service server is sent, the closely service identification that the first UE and the 2nd UE is carried in the authentication request message or the application user mark for carrying the first UE and the 2nd UE, the first UE and the 2nd UE are the user of the corresponding application of the application server；

Sending module, relation for the first UE and the 2nd UE described in the corresponding application user identity validation according to the corresponding application user marks of the first UE and the 2nd UE allows after finding mutually, identity validation message is returned to the closely service server, the identity validation message is used to show that the first UE and the 2nd UE allows mutual find.