CN110740440B

CN110740440B - Method, related device and system for realizing near field service

Info

Publication number: CN110740440B
Application number: CN201910860329.8A
Authority: CN
Inventors: 周润泽; 朱奋勤
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-11-10
Filing date: 2014-11-10
Publication date: 2021-05-11
Anticipated expiration: 2034-11-10
Also published as: WO2016074137A1; CN110740440A; CN105960815A; CN105960815B

Abstract

The embodiment of the invention provides a method, a related device and a system for realizing a near field service, which solve the problem of low efficiency of the near field service of UE. The method comprises the following steps: a near field service functional entity receives a near field service request message sent by broadcaster User Equipment (UE), wherein the near field service request message comprises information of a service requested to be broadcasted by the broadcaster UE; the short-distance service functional entity determines that a listener UE requesting to monitor the service exists according to the information of the service; the short-distance service functional entity acquires a broadcast code corresponding to the service; and the short-distance service functional entity sends a short-distance service request response message to the broadcaster UE, wherein the short-distance service request response message comprises the broadcast code. The method is suitable for the technical field of communication.

Description

Method, related device and system for realizing near field service

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, a related apparatus, and a system for implementing a proximity service.

Background

With the popularity of applications such as social networking, friend Proximity data sharing, etc., people's demand for understanding and communicating with nearby interested things is increasing, and for this reason, the international telecommunication standards organization third Generation Partnership Project (3 GPP) proposes a Proximity-based Services (ProSe) technology, which generally refers to the cooperation between a third party application platform and a (telecommunication) operator to realize mutual discovery between friends, or help a user find nearby interested businesses such as hotels, restaurants, etc., or help businesses broadcast their own Services within a certain range, etc.

By this technique, the user can realize broadcasting or listening of the proximity service. For example, two User Equipments (UEs) are registered on a third-party application platform, and if a consumer and a merchant are registered on a group of purchasing websites, the merchant acts as a broadcaster and can broadcast service information of the merchant within a preset distance range by acquiring a broadcast code from a network side, and the consumer acts as a listener and can select the merchant as a monitoring object to acquire the merchant broadcast code. Therefore, when a merchant broadcasts, a consumer can acquire the business information broadcasted by the merchant by monitoring the broadcast code.

However, in the prior art, the UE can obtain the service that the broadcast code broadcasts itself or obtain the broadcast code to monitor the service that the UE wants to monitor from the network side only by the authentication of the network side, for example, the network side authenticates that the UE is a legal terminal and subscribes to the proximity service. When the UE is a broadcaster, if no other UE wants to monitor the UE, or if the other UE that wants to monitor the UE is far away from the UE and is not within the broadcast range of the UE, the UE still continues to broadcast its service, which results in low efficiency of the short-range service.

Disclosure of Invention

The embodiment of the invention provides a method, a related device and a system for realizing near field service, which solve the problem of low near field service discovery efficiency in the prior art.

In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:

in a first aspect, an embodiment of the present invention provides a proximity service functional entity, where the proximity service functional entity includes: the device comprises a receiving unit, a first determining unit, a first acquiring unit and a sending unit;

the receiving unit is configured to receive a proximity service request message sent by a broadcaster user equipment UE, where the proximity service request message includes information of a service requested to be broadcasted by the broadcaster UE;

the first determining unit is configured to determine, according to the information of the service, that there is a listener UE that requests to monitor the service;

the first obtaining unit is configured to obtain a broadcast code corresponding to the service;

the sending unit is configured to send a proximity service request response message to the broadcaster UE, where the proximity service request response message includes the broadcast code.

In a first possible implementation manner, with reference to the first aspect, the proximity service function entity further includes: a second acquisition unit;

the second acquiring unit is configured to acquire location information of the listener UE;

the sending unit is specifically configured to: and sending a short-distance service request response message to the broadcaster UE, wherein the short-distance service request response message comprises the broadcast code and the position information of the listener UE.

In a second possible implementation manner, with reference to the first aspect, the proximity service request message further includes location information of the broadcaster UE, and the proximity service function entity further includes: a second acquiring unit and a second determining unit;

and the second determining unit is used for determining that the distance between the broadcaster UE and the listener UE is within a preset range according to the position information of the broadcaster UE and the listener UE.

In a third possible implementation manner, with reference to the second possible implementation manner, the proximity service request response message further includes location information of the listener UE.

In a fourth possible implementation manner, with reference to the second possible implementation manner or the third possible implementation manner, the proximity service request message further includes identification information of the broadcaster UE, and the proximity service request response message further includes valid duration information of the broadcast code, where the proximity service functional entity further includes: a recording unit;

the recording unit is configured to record context information of the broadcaster UE, where the context information of the broadcaster UE includes location information of the broadcaster UE.

In a fifth possible implementation manner, with reference to any one of the first to fourth possible implementation manners of the first aspect, the first determining unit is specifically configured to: and if the short-distance service functional entity contains the service information according to the stored context information of the listener UE, determining that the listener UE requesting to monitor the service exists.

In a second aspect, an embodiment of the present invention provides a proximity service functional entity, where the proximity service functional entity includes: the device comprises a receiving unit, a first determining unit, a first acquiring unit and a sending unit;

the receiving unit is configured to receive a proximity service request message sent by a listener user equipment UE or a proximity service functional entity of a home public land mobile network HPLMN of the listener UE, where the proximity service request message includes information of a service requested to be monitored by the listener UE;

the first determining unit is configured to determine, according to the service information, that there is a broadcaster UE that requests to broadcast the service;

the sending unit is configured to send a proximity service request response message to the listener UE or an HPLMN proximity service functional entity of the listener UE, where the proximity service request response message includes the broadcast code.

In a first possible implementation manner, with reference to the second aspect, the proximity service function entity further includes: a second acquisition unit;

the second obtaining unit is configured to obtain location information of the broadcaster UE;

the sending unit is specifically configured to: and sending a proximity service request response message to the listener UE or the HPLMN proximity service function entity of the listener UE, wherein the proximity service request response message comprises the broadcast code and the position information of the broadcaster UE.

In a second possible implementation manner, with reference to the second aspect, the proximity service request message further includes location information of the listener UE, and the proximity service functional entity further includes: a second acquiring unit and a second determining unit;

and the second determining unit is used for determining that the distance between the broadcaster UE and the listener UE is within a preset range according to the position information of the broadcaster UE and the position information of the listener UE.

In a third possible implementation manner, with reference to the second possible implementation manner, the proximity service request response message further includes: location information of the broadcaster UE.

In a fourth possible implementation manner, with reference to the second possible implementation manner or the third possible implementation manner, the proximity service request message further includes identification information of the listener UE, and the proximity service functional entity further includes: a recording unit;

the recording unit is configured to record context information of the listener UE, where the context information of the listener UE includes location information of the listener UE.

In a fifth possible implementation manner, with reference to any one of the second aspect to the fourth possible implementation manner of the second aspect, the first determining unit is specifically configured to: and if the context information of the broadcaster UE stored by the short-distance service functional entity contains the service information, determining that the broadcaster UE broadcasting the service has a request.

In a third aspect, an embodiment of the present invention provides a UE, where the UE includes: a sending unit, configured to send a proximity service request message to a proximity service functional entity, where the proximity service functional entity serves a home public land mobile network HPLMN of the UE, and the proximity service request message includes location information of the UE and information of a service requested to be broadcasted by the UE; or the proximity service request message contains the position information of the UE and the information of the service requested to be monitored by the UE.

In a first possible implementation manner, with reference to the third aspect, the UE further includes: a receiving unit and an execution unit;

the receiving unit is configured to receive a proximity service request response message sent by the proximity service functional entity, where the proximity service request response message includes a broadcast code corresponding to the service;

and the execution unit is used for performing the short-distance service through the broadcast code.

In a second possible implementation manner, with reference to the first possible implementation manner, the proximity service request response message further includes location information of the broadcaster UE, and the UE further includes: a determination unit;

the determining unit is configured to determine, according to the location information of the UE and the location information of the broadcaster UE, that a distance between the UE and the broadcaster UE is within a preset range.

In a third possible implementation manner, with reference to the first possible implementation manner, the proximity service request response message further includes location information of the listener UE, and the UE further includes: a determination unit;

the determining unit is configured to determine, according to the location information of the UE and the location information of the listener UE, that a distance between the UE and the listener UE is within a preset range.

In a fourth aspect, an embodiment of the present invention provides a method for implementing a proximity service, where the method includes: a near field service functional entity receives a near field service request message sent by broadcaster User Equipment (UE), wherein the near field service request message comprises information of a service requested to be broadcasted by the broadcaster UE;

the short-distance service functional entity determines that a listener UE requesting to monitor the service exists according to the information of the service;

the short-distance service functional entity acquires a broadcast code corresponding to the service;

and the short-distance service functional entity sends a short-distance service request response message to the broadcaster UE, wherein the short-distance service request response message comprises the broadcast code.

In a first possible implementation manner, with reference to the fourth aspect, before the obtaining, by the short-range service functional entity, a broadcast code corresponding to the service, the method further includes:

the short-distance service functional entity acquires the position information of the listener UE;

the proximity service functional entity sends a proximity service request response message to the broadcaster UE, wherein the proximity service request response message also includes location information of the listener UE.

In a second possible implementation manner, with reference to the fourth aspect, if the proximity service request message further includes location information of the broadcaster UE, before the proximity service functional entity acquires a broadcast code corresponding to the service, the method further includes:

and the short-distance service functional entity determines that the distance between the broadcaster UE and the listener UE is within a preset range according to the position information of the broadcaster UE and the listener UE.

In a fourth possible implementation manner, with reference to the second possible implementation manner or the third possible implementation manner, the proximity service request message further includes identification information of the broadcaster UE, the proximity service request response message further includes valid duration information of the broadcast code, and after the proximity service functional entity sends the proximity service request response message to the broadcaster UE, the method further includes:

the near field service functional entity records the context information of the broadcaster UE, wherein the context information of the broadcaster UE comprises the position information of the broadcaster UE.

In a fifth possible implementation manner, with reference to any one of the fourth to the fourth possible implementation manners, the determining, by the near field service functional entity, that there is a listener UE that requests to listen to the service according to the information of the service specifically includes:

and if the short-distance service functional entity contains the information of the service according to the stored context information of the listener UE, the short-distance service functional entity determines that the listener UE requesting to monitor the service exists.

In a fifth aspect, an embodiment of the present invention provides a method for implementing a proximity service, where the method includes: a near field service functional entity receives a near field service request message sent by User Equipment (UE) of a listener or a near field service functional entity of a Home Public Land Mobile Network (HPLMN) of the UE of the listener, wherein the near field service request message comprises information of a service requested to be monitored by the UE of the listener;

the short-distance service functional entity determines that a broadcaster UE requesting to broadcast the service exists according to the service information;

and the short-distance service functional entity sends a short-distance service request response message to the listener UE or the HPLMN short-distance service functional entity of the listener UE, wherein the short-distance service request response message comprises the broadcast code.

In a first possible implementation manner, with reference to the fifth aspect, before the obtaining, by the near service function entity, a broadcast code corresponding to the service, the method further includes:

the short-distance service functional entity acquires the position information of the broadcaster UE;

the proximity service request response message further includes location information of the broadcaster UE.

In a second possible implementation manner, with reference to the fifth aspect, if the proximity service request message further includes location information of the listener UE, before the proximity service functional entity acquires a broadcast code corresponding to the service, the method further includes:

and the short-distance service functional entity determines that the distance between the broadcaster UE and the listener UE is within a preset range according to the position information of the broadcaster UE and the position information of the listener UE.

In a third possible implementation manner, with reference to the second possible implementation manner, the proximity service request response message further includes: and monitoring the position information of the UE.

In a fourth possible implementation manner, with reference to the second possible implementation manner or the third possible implementation manner, after the proximity service request message further includes identification information of the listener UE, and the proximity service functional entity receives the proximity service request message sent by the listener user equipment UE or the proximity service functional entity of the home public land mobile network HPLMN of the listener UE, the method further includes:

and the short-distance service functional entity records the context information of the listener UE, wherein the context information of the listener UE comprises the position information of the listener UE.

In a fifth possible implementation manner, with reference to any one of the fifth to fourth possible implementation manners of the fifth aspect, the determining, by the proximity service functional entity, that there is a broadcaster UE that requests to broadcast the service according to the information of the service specifically includes:

if the context information of the broadcaster UE stored by the short-distance service functional entity contains the information of the service, the short-distance service functional entity determines that the broadcaster UE requesting to broadcast the service exists.

In a sixth aspect, an embodiment of the present invention provides a method for implementing a proximity service, where the method includes: user Equipment (UE) sends a near field service request message to a near field service functional entity, wherein the near field service functional entity serves a Home Public Land Mobile Network (HPLMN) of the UE, and the near field service request message comprises position information of the UE and information of a service requested to be broadcasted by the UE; or the proximity service request message contains the position information of the UE and the information of the service requested to be monitored by the UE.

In a first possible implementation manner, with reference to the sixth aspect, after the UE sends the proximity service request message to the proximity service function entity, the method further includes:

the UE receives a near field service request response message sent by the near field service functional entity, wherein the near field service request response message comprises a broadcast code corresponding to the service;

and the UE performs the short-distance service through the broadcast code.

In a second possible implementation manner, with reference to the first possible implementation manner, the proximity service request response message further includes location information of the broadcaster UE;

before the UE performs the proximity service through the broadcast code, the method further includes:

and the UE determines that the distance between the UE and the broadcaster UE is within a preset range according to the position information of the UE and the position information of the broadcaster UE.

In a third possible implementation manner, with reference to the first possible implementation manner, the proximity service request response message further includes location information of the listener UE;

and the UE determines that the distance between the UE and the listener UE is within a preset range according to the position information of the UE and the position information of the listener UE.

In a seventh aspect, an embodiment of the present invention provides a proximity service functional entity, where the proximity service functional entity includes: a receiver, a processor and a transmitter;

the receiver is configured to receive a proximity service request message sent by a broadcaster user equipment UE, where the proximity service request message includes information of a service requested to be broadcasted by the broadcaster UE;

the processor is used for determining that a listener UE requesting to monitor the service exists according to the information of the service;

acquiring a broadcast code corresponding to the service;

the transmitter is configured to transmit a proximity service request response message to the broadcaster UE, where the proximity service request response message includes the broadcast code.

In a first possible implementation manner, with reference to the seventh aspect, the processor is further configured to: acquiring the position information of the listener UE;

the transmitter is specifically configured to: and sending a short-distance service request response message to the broadcaster UE, wherein the short-distance service request response message comprises the broadcast code and the position information of the listener UE.

In a second possible implementation manner, with reference to the seventh aspect, the proximity service request message further includes location information of the broadcaster UE, and the processor is further configured to:

acquiring the position information of the listener UE;

and determining that the distance between the broadcaster UE and the listener UE is within a preset range according to the position information of the broadcaster UE and the listener UE.

In a fourth possible implementation manner, with reference to the second possible implementation manner or the third possible implementation manner, the proximity service request message further includes identification information of the broadcaster UE, and the proximity service request response message further includes valid duration information of the broadcast code, where the processor is further configured to: and recording the context information of the broadcaster UE, wherein the context information of the broadcaster UE comprises the position information of the broadcaster UE.

In a fifth possible implementation manner, with reference to the seventh aspect to the fourth possible implementation manner of the seventh aspect, the processor is specifically configured to: and if the short-distance service functional entity contains the service information according to the stored context information of the listener UE, determining that the listener UE requesting to monitor the service exists.

In an eighth aspect, an embodiment of the present invention provides a proximity service functional entity, where the proximity service functional entity includes: a receiver, a processor and a transmitter;

the receiver is configured to receive a proximity service request message sent by a listener user equipment UE or a proximity service functional entity of a home public land mobile network HPLMN of the listener UE, where the proximity service request message includes information of a service requested to be monitored by the listener UE;

the processor is configured to determine, according to the service information, that there is a broadcaster UE that requests to broadcast the service;

acquiring a broadcast code corresponding to the service;

the sender is configured to send a proximity service request response message to the listener UE or an HPLMN proximity service functional entity of the listener UE, where the proximity service request response message includes the broadcast code;

in a first possible implementation manner, with reference to the eighth aspect, the processor is further configured to: acquiring the position information of the broadcaster UE;

the transmitter is specifically configured to: sending a proximity service request response message to the listener UE or an HPLMN proximity service functional entity of the listener UE, wherein the proximity service request response message comprises the broadcast code and the location information of the broadcaster UE;

in a second possible implementation manner, with reference to the eighth aspect, the proximity service request message further includes location information of the listener UE, and the processor is further configured to:

acquiring the position information of the broadcaster UE;

and determining that the distance between the broadcaster UE and the listener UE is within a preset range according to the position information of the broadcaster UE and the position information of the listener UE.

In a fourth possible implementation manner, with reference to the second possible implementation manner or the third possible implementation manner, the proximity service request message further includes identification information of the listener UE, and the processor is further configured to:

and recording the context information of the UE of the listener, wherein the context information of the UE of the listener comprises the position information of the UE of the listener.

In a fifth possible implementation manner, with reference to the eighth aspect to the fourth possible implementation manner of the eighth aspect, the processor is specifically configured to: and if the context information of the broadcaster UE stored by the short-distance service functional entity contains the service information, determining that the broadcaster UE broadcasting the service has a request.

In a ninth aspect, an embodiment of the present invention provides a UE, where the UE includes: a transmitter, a processor and a receiver;

the transmitter is configured to transmit a proximity service request message to a proximity service functional entity, where the proximity service functional entity serves a home public land mobile network HPLMN of the UE, and the proximity service request message includes location information of the UE and information of a service requested to be broadcasted by the UE; or the proximity service request message contains the position information of the UE and the information of the service requested to be monitored by the UE.

In a first possible implementation manner, with reference to the ninth aspect, the receiver is specifically configured to: receiving a near field service request response message sent by the near field service functional entity, wherein the near field service request response message contains a broadcast code corresponding to the service;

the processor is specifically configured to: and performing short-distance service through the broadcast code.

the processor is further configured to: and determining that the distance between the UE and the broadcaster UE is within a preset range according to the position information of the UE and the position information of the broadcaster UE.

the receiver is further configured to: and determining that the distance between the UE and the listener UE is within a preset range according to the position information of the UE and the position information of the listener UE.

In a tenth aspect, an embodiment of the present invention provides a system for implementing a proximity service, where the system includes: the proximity service functional entity according to any one of the first to fifth possible embodiments of the first aspect, and the UE according to any one of the third to third possible embodiments of the third aspect; alternatively, the first and second electrodes may be,

the proximity service functional entity as defined in any one of the second to fifth possible embodiments of the second aspect, and the UE as defined in any one of the third to third possible embodiments of the third aspect; alternatively, the first and second electrodes may be,

the proximity service functional entity of any one of the first to fifth possible implementations of the first aspect, the proximity service functional entity of any one of the second to fifth possible implementations of the second aspect, and the UE of any one of the third to third possible implementations of the third aspect; alternatively, the first and second electrodes may be,

the proximity service functional entity as set forth in any one of the seventh to seventh possible embodiments and the UE as set forth in any one of the ninth to third possible embodiments; alternatively, the first and second electrodes may be,

the proximity service functional entity as described in any one of the eighth to the fifth possible implementation manner of the eighth aspect and the UE as described in any one of the ninth to the ninth possible implementation manner of the ninth aspect; alternatively, the first and second electrodes may be,

the near field service functional entity of any one of the seventh to seventh possible implementations, the near field service functional entity of any one of the eighth to eighth possible implementations, and the UE of any one of the ninth to ninth possible implementations.

The embodiment of the invention provides a method, a related device and a system for realizing a near field service, wherein when a broadcaster UE requests a broadcast service, a near field service functional entity at a network side authorizes the broadcaster UE to perform the near field service after determining that a listener UE requesting to monitor the service exists, and when a listener requests the monitoring service, the near field service functional entity at the network side authorizes the listener UE to perform the near field service after determining that the broadcaster UE requesting to broadcast the service exists, so that the problem of low near field service efficiency of the UE caused by the fact that the listener UE still performs the near field service or the broadcaster UE requesting to broadcast the service does not exist when the listener UE requesting to monitor the service does not exist.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a diagram of a proximity services system architecture;

FIG. 2 is a diagram of a proximity service function entity;

FIG. 3 is a diagram of a UE;

FIG. 4 is a flowchart of a method for implementing proximity services;

FIG. 5 is a flowchart of a method for implementing proximity services;

fig. 6 is a flowchart of a method for implementing proximity services;

FIG. 7 is a flow chart of a method for implementing proximity services;

FIG. 8 is a flow chart of a method for proximity services implementation;

FIG. 9 is a sixth flowchart of a method for proximity services implementation;

FIG. 10 is a seventh flowchart of a method for proximity services implementation;

fig. 11 is a flowchart eight of a method for implementing proximity services.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

With reference to fig. 1, a system architecture for implementing a short-range service when a UE is in a Home Public Land Mobile Network (HPLMN), which is exemplified by a Long Term Evolution (LTE) Network, is exemplarily described. In the architecture, according to a proximity service technology provided by 3GPP, UEs that implement proximity services, such as broadcaster/viewer UE and listener/listener UE, register their user information (or allocate temporary user information to the UE by the application), such as an account and a user name, on a third-party application platform, such as a WeChat and an MSN, and provide services related to the third-party application by a proximity service application server shown in fig. 1.

And, the UE is connected with a network element in the core network, such as a proximity service Function (ProSe Function) in fig. 1, for processing information related to the proximity service. The proximity service functional entity is connected with a Home Subscriber Server (HSS), and the HSS stores basic information and subscription data information of the UE, such as whether a terminal of the UE is legal, whether the UE subscribes to an internet access function, whether the UE subscribes to a proximity service, and the like.

When UE needs to initiate a near field service, if a broadcaster needs to broadcast a near field service to a certain service, the UE sends a request message to a near field service function entity of the HPLMN, the near field service function entity of the HPLMN requests HSS to authenticate the UE, and after the HSS authenticates the UE, if a terminal of the UE is a legal terminal and the UE subscribes to the near field service, the near field service function entity of the HPLMN judges whether to authorize the near field service to the UE.

It should be noted that the HPLMN refers to a network in which the UE is registered in the home location, for example, a network in china in which a user in china is registered in the home location, for example, china mobile. One of HPLMNs is a concept opposite to a Visited Public Land Mobile Network (VPLMN), where the VPLMN refers to a Network in which a UE is registered in a roaming place, for example, when the UE whose home location is china comes to the united states, since the Network in which the UE is registered in the home location is not searched, for example, the Network in which the UE is moved in china, the UE will be registered in a certain carrier Network in the united states, and the certain carrier Network in which the UE is registered in the united states is the VPLMN. However, regardless of whether the actual geographical location of the UE is at its home location, when the UE needs to initiate a proximity service, it must initiate a proximity service request to a proximity service function entity in its HPLMN's network.

In the prior art, as long as a broadcaster passes authentication of the HSS, the proximity service functional entity allocates a broadcast code to the broadcaster, so that the UE broadcasts service information through the broadcast code, but there may be no listener wanting to monitor the broadcaster currently, so that the proximity service efficiency of the broadcaster is low.

To solve the problem, an embodiment of the present invention provides a proximity service functional entity, and with reference to fig. 2, the proximity service functional entity includes: a receiving unit 201, a first determining unit 202, a first acquiring unit 203 and a transmitting unit 204;

the receiving unit 201 is configured to receive a proximity service request message sent by a broadcaster user equipment UE, where the proximity service request message includes information of a service requested to be broadcasted by the broadcaster UE;

the first determining 202 is configured to determine, according to the information of the service, that there is a listener UE that requests to monitor the service;

the first obtaining unit 203 is configured to obtain a broadcast code corresponding to the service;

the sending unit 204 is configured to send a proximity service request response message to the broadcaster UE, where the proximity service request response message includes the broadcast code.

Optionally, with reference to fig. 2, the proximity service functional entity further includes: a second acquisition unit 205;

the second obtaining unit 205 is configured to obtain location information of the listener UE;

the sending unit 204 is specifically configured to: and sending a short-distance service request response message to the broadcaster UE, wherein the short-distance service request response message comprises the broadcast code and the position information of the listener UE.

Optionally, with reference to fig. 2, the proximity service functional entity further includes: a second determination unit 206;

the second determining unit 206 is configured to determine, according to the location information of the broadcaster UE and the listener UE, that a distance between the broadcaster UE and the listener UE is within a preset range.

Optionally, the proximity service request response message further includes: and monitoring the position information of the UE.

Optionally, the proximity service request message further includes identification information of the broadcaster UE, and the proximity service request response message further includes valid duration information of the broadcast code, and with reference to fig. 2, the proximity service functional entity further includes: a recording unit 207;

the recording unit 207 is configured to record context information of the broadcaster UE, where the context information of the broadcaster UE includes location information of the broadcaster UE.

Specifically, the first determining unit 202 is configured to: and if the short-distance service functional entity contains the service information according to the stored context information of the listener UE, determining that the listener UE requesting to monitor the service exists.

The embodiment of the invention provides a short-distance service functional entity, which judges whether a listener UE requesting to monitor a service exists or not after receiving a short-distance service request message of the broadcaster UE requesting to broadcast the service, if so, the short-distance service functional entity authorizes the broadcaster UE to broadcast the service, thereby avoiding the problem of low short-distance service efficiency caused by the fact that the broadcaster UE still broadcasts the service under the condition that the listener UE monitoring the service does not exist.

In the prior art, when a listener UE requests to monitor a service and the listener UE passes network authentication, a proximity service functional entity determines whether a broadcast code corresponding to the service is previously allocated, and if so, the proximity service functional entity sends the broadcast code to the listener, but actually, the proximity service functional entity may not currently request the broadcaster UE to broadcast the service, and if the broadcast code of the broadcaster UE exceeds an effective duration, or the broadcaster UE selects not to broadcast the service in a certain time period, so that the proximity service efficiency of the listener is low, and in order to improve the proximity service efficiency of the listener, the proximity service functional entity corresponding to fig. 2 is combined, and the proximity service functional entity includes: a receiving unit 201, a first determining unit 202, a first acquiring unit 203 and a transmitting unit 204;

the receiving unit 201 is configured to receive a proximity service request message sent by a listener UE or a proximity service functional entity of a home public land mobile network HPLMN of the listener UE, where the proximity service request message includes information of a service requested to be monitored by the listener UE;

the first determining unit 202 is configured to determine, according to the information of the service, that there is a broadcaster UE that requests to broadcast the service;

the sending unit 204 is configured to send a proximity service request response message to the listener UE or an HPLMN proximity service functional entity of the listener UE, where the proximity service request response message includes the broadcast code.

Optionally, the proximity service functional entity further includes a second obtaining unit 205, where the second obtaining unit 205 is configured to obtain location information of the broadcaster UE;

the sending unit 204 is specifically configured to: and sending a proximity service request response message to the listener UE or the HPLMN proximity service function entity of the listener UE, wherein the proximity service request response message comprises the broadcast code and the position information of the broadcaster UE.

Optionally, the proximity service request message further includes location information of the listener UE, and the proximity service functional entity further includes: a second determination unit 206;

the second determining unit 206 is configured to determine, according to the location information of the broadcaster UE and the location information of the listener UE, that a distance between the broadcaster UE and the listener UE is within a preset range.

Optionally, the proximity service request response message further includes: location information of the broadcaster UE.

Optionally, the proximity service functional entity further includes: a recording unit 207;

the recording unit 207 is configured to record context information of the listener UE, where the context information of the listener UE includes location information of the listener UE.

Specifically, the first determining unit 202 is configured to: and if the context information of the broadcaster UE stored by the short-distance service functional entity contains the service information, determining that the broadcaster UE broadcasting the service has a request.

The embodiment of the invention provides a short-distance service functional entity, which judges whether a broadcaster UE currently broadcasting a service requested to be monitored by a listener UE exists or not after receiving a short-distance service request message of the service requested to be monitored by the listener UE, and if the broadcaster UE currently broadcasting the service exists, the short-distance service functional entity authorizes the listener UE to monitor the service, so that the problem of low short-distance service efficiency caused by the fact that the listener UE still monitors the service under the condition that the broadcaster UE currently broadcasting the service does not exist is solved.

In order to solve the problem of low efficiency of the UE proximity service, an embodiment of the present invention further provides a UE, where, with reference to fig. 3, the UE includes: a sending unit 301, configured to send a proximity service request message to a proximity service functional entity, where the proximity service functional entity serves a home public land mobile network HPLMN of the UE, and the proximity service request message includes location information of the UE and information of a service requested to be broadcasted by the UE; or the proximity service request message contains the position information of the UE and the information of the service requested to be monitored by the UE.

Further, in conjunction with fig. 3, the UE further includes: a receiving unit 302 and an executing unit 303;

the receiving unit 302 is configured to receive a proximity service request response message sent by the proximity service functional entity, where the proximity service request response message includes a broadcast code corresponding to the service;

the executing unit 303 is configured to perform a short-range service through the broadcast code.

Optionally, the proximity service request response message further includes location information of the broadcaster UE, and with reference to fig. 3, the UE further includes: a determination unit 304;

the determining unit 304 is configured to determine, according to the location information of the UE and the location information of the broadcaster UE, that a distance between the UE and the broadcaster UE is within a preset range.

Optionally, the proximity service request response message further includes location information of the listener UE, and the determining unit 304 is specifically configured to: and determining that the distance between the UE and the listener UE is within a preset range according to the position information of the UE and the position information of the listener UE.

It should be noted that, for detailed technical features of the embodiments of the apparatuses corresponding to fig. 2 and fig. 3 of the present invention, reference may be made to the embodiment of the method of the present invention, and the embodiment of the apparatus of the present invention is not described again.

The embodiment of the invention provides UE (user equipment), wherein the UE enables a network side to judge whether to authorize a short-distance service request of the UE according to the position information of the UE by reporting the position information of the UE, if the UE is the broadcaster UE, when the listener UE requesting to monitor the UE exists but the listener UE requesting to monitor the UE is not in the broadcast range of the UE, or the UE is the listener UE and has the broadcaster UE currently broadcasting the service requested to monitor by the UE but the broadcaster UE broadcasting the service requested to monitor by the UE is not in the monitor range of the UE, the network side does not authorize the short-distance service request of the UE, so that the short-distance efficiency of the UE is improved. Furthermore, the network side can also send the location information of the broadcaster UE or the listener UE to the UE, and the UE determines whether to perform the proximity service according to the location information of the broadcaster UE or the listener UE, thereby further improving the proximity service efficiency of the UE.

In order to solve the problem of low proximity service efficiency of the broadcaster UE, an embodiment of the present invention provides a method for implementing a proximity service, where, with reference to fig. 4, the method includes:

401. the method comprises the following steps that a near field service functional entity receives a near field service request message sent by broadcaster User Equipment (UE), wherein the near field service request message comprises information of a service requested to be broadcasted by the broadcaster UE.

The UEs that need to implement the proximity service can be classified into two categories, one is the broadcaster UE, and the broadcaster UE implements the proximity service to broadcast its own service, hope that the listener UE monitors it. The other is a listener UE, and the purpose of the listener to implement the proximity service is to listen to the service in which the listener is interested, such as listening to a friend or listening to a merchant in which the listener is interested. Of course, the UE may also be used as a listener UE when the broadcaster UE requests to monitor services of other UEs, or may also be used as a broadcaster UE when the listener UE requests to broadcast its own services, which is not limited in the embodiments of the present invention.

In this embodiment of the present invention, when the broadcaster UE needs to initiate a proximity service, the broadcaster UE may send a proximity service request message to a proximity service function entity, where it should be noted that the proximity service function entity is a network element in a core network of an HPLMN of the broadcaster UE, which is used to process information related to the proximity service, may be an independent device, and is only used to process information related to the proximity service, and may also be used as a part of a function of a network element in the core network to implement processing of information related to the proximity service, and specifically, this is not limited in this embodiment of the present invention.

Specifically, the information of the service requested to be broadcasted by the broadcaster at least includes the following contents:

first, an Application ID (APP ID) of a third-party Application registered by the broadcaster UE is an ID of a WeChat if the third-party Application registered by the broadcaster UE is a WeChat.

Second, a Proximity-based service Application ID (ProSe APP ID) of the broadcaster UE, where the Proximity-based service Application ID may represent a service type on a third-party Application registered by the broadcaster UE, such as merchant information, e.g., a restaurant, a hotel, and the like, and may also represent identity information of the broadcaster UE on the third Application, such as a real user name registered by the broadcaster UE on the Application or a temporary user name allocated by the broadcaster UE by the Application. In addition, the short-range service application identifier further includes a Public Land Mobile Network (PLMN) identifier for allocating the short-range service application identifier. It should be noted that the PLMN to which the proximity service application identifier of the broadcaster UE is assigned is necessarily the HPLMN of the broadcaster UE.

Certainly, according to the needs of Network side authentication and explicit type of the broadcaster UE, the proximity Service request message may further include Identification information of the broadcaster UE, where the Identification information of the broadcaster UE may be unique Network identity Identification information of the broadcaster UE, such as an International Mobile Subscriber identity Number (IMSI) of the broadcaster UE or an International Mobile Subscriber Integrated Service Digital Network Number (MSISDN) of the broadcaster UE, and the proximity Service type message of the broadcaster UE, and is used to indicate that the broadcaster UE is a broadcaster.

The broadcaster UE carries information of the service requested to be broadcasted by the broadcaster in the short-distance service request message, and is used for requesting the short-distance service functional entity to allocate a broadcast code corresponding to the service to the broadcaster UE, so that the broadcaster UE broadcasts the service through the broadcast code.

402. And the short-distance service functional entity determines that the listener UE requesting to monitor the service exists according to the information of the service.

For example, the broadcaster UE is a UE of a merchant in a group purchase application, and when the merchant needs to broadcast its service, the service request message at least includes an APP ID of the group purchase application and a proximity service application identifier of the merchant, which may be specifically identity information of the merchant in the group purchase application. And after receiving the proximity service request message sent by the merchant, the proximity service functional entity judges whether a listener UE for monitoring the merchant through the group purchase application request exists.

Specifically, the proximity service functional entity determines whether there are multiple ways that the listener UE may exist according to the service information, for example, when requesting to implement the proximity service, the listener UE sends a proximity service request message to the proximity service functional entity, where the proximity service request message includes identification information of the listener UE and service information that the listener UE requests to monitor, and when receiving the proximity service request message of the listener UE, the proximity service functional entity creates context information for the listener UE, where the context information of the listener UE includes the identification information of the listener UE, such as IMSI information of the listener UE and information of the service that the listener UE requests to monitor. And after receiving the short-distance service request message sent by the broadcaster UE, the short-distance service functional entity judges whether a listener UE requesting to monitor the service exists according to the information of the service requested to be broadcast by the broadcaster UE and the context information of the listener UE.

Further, the proximity service functional entity may also create context information of the broadcaster UE for the broadcaster UE, where the context information of the broadcaster UE includes identification information of the broadcaster UE, and the broadcaster UE requests information of a broadcast service.

If there is no listener UE monitoring the service when the broadcaster UE sends the proximity service request message to the proximity service functional entity, the proximity service functional entity may determine, through context information of the broadcaster UE, whether there is a listener requesting to monitor a service to be broadcasted by the broadcaster to send the proximity service request message to the proximity service functional entity within a preset time, and if so, the proximity service functional entity determines that there is a listener UE requesting to monitor the service.

Of course, the proximity service functional entity may also determine whether the listener UE exists in other manners, and specifically, this is not limited in the embodiment of the present invention, and it should be noted that any other method for determining whether the listener UE exists, which is proposed on the basis of the idea of the present invention, is within the protection scope of the embodiment of the present invention.

403. And the short-distance service functional entity acquires a broadcast code corresponding to the service.

If there is a listener UE requesting to monitor the service, the proximity service entity allocates a broadcast code corresponding to the service to the broadcaster UE, specifically, based on consideration of charging and the like, the proximity service functional entity may allocate information such as an available effective duration of the broadcast code while allocating the broadcast code, which is not limited in the embodiment of the present invention.

Of course, the context information created by the proximity service functional entity for the broadcaster may further include information such as the broadcast code information and the valid duration of the broadcast code.

When the listener UE does not exist, the proximity service functional entity may directly send an indication message to the broadcaster UE, where the indication message is used to indicate that the network side passes the authentication of the broadcaster UE, but there is no listener requesting to monitor the broadcaster UE, and the proximity service functional entity does not allocate a broadcast code for the time being.

404. And the short-distance service functional entity sends a short-distance service request response message to the broadcaster UE, wherein the short-distance service request response message comprises the broadcast code.

And after receiving a first near field service request broadcast message sent by the near field service entity, the broadcaster UE acquires the broadcast code, and broadcasts the service through the broadcast code. The short-distance service functional entity allocates the broadcast code to the broadcaster UE after judging that the listener UE requesting to monitor the service exists, so that the broadcaster UE must exist the listener UE requesting to monitor the service when broadcasting the service, thereby avoiding the problem of low short-distance service efficiency caused by the fact that the broadcaster UE still broadcasts the service under the condition that no listener monitoring the service exists.

In the method, after receiving a short-distance service request message of a broadcaster UE requesting a broadcast service, a short-distance service functional entity firstly judges whether a listener UE requesting to monitor the service exists, and if so, the short-distance service functional entity authorizes the broadcaster UE to broadcast the service, thereby avoiding the problem of low short-distance service efficiency caused by the fact that the broadcaster UE still broadcasts the service under the condition that the listener UE monitoring the service does not exist.

Further, the broadcast range of the broadcaster UE to the first service is limited, for example, the broadcaster UE is a UE of a merchant, and the merchant only broadcasts the service in a range of 100 meters in radius around the merchant, but even though there is a listener UE that wants to monitor the service, if the listener UE is far away from the merchant and is not within the broadcast range of the merchant, at this time, the listener UE cannot monitor the service broadcast by the broadcaster UE, which results in low efficiency of the proximity service of the broadcaster UE, and in order to solve the problem, with reference to fig. 5, an embodiment of the present invention further provides a method for implementing the proximity service, where the method includes:

501. the method comprises the following steps that a near field service functional entity receives a near field service request message sent by broadcaster User Equipment (UE), wherein the near field service request message comprises information of a service requested to be broadcasted by the broadcaster UE.

502. And the short-distance service functional entity determines that the listener UE requesting to monitor the service exists according to the information of the service.

Specifically, the detailed technical features of step 501 and step 502 may refer to step 401 and step 402 in the above embodiments, which are not described again in this embodiment of the present invention.

503. And the short-distance service functional entity acquires the position information of the listener UE.

The proximity service functional entity may acquire the location information of the listener UE in a variety of ways, for example, the listener UE may report the location information of the listener UE when sending a proximity service request message to the proximity service functional entity, the proximity service functional entity records the location information of the listener UE in context information created for the listener UE, and when the proximity service functional entity requests broadcast service information from the broadcaster and the listener UE determines that the listener UE exists according to the context information of the listener UE, the location information of the listener UE may be acquired from the context information of the listener UE.

Specifically, the location message may be a cell identifier of the listener UE, a tracking area identifier of the listener UE, or other location identifiers, which is not limited in the embodiment of the present invention.

Of course, the proximity service functional entity may also acquire the location information of the listener UE through other manners, and it should be noted that any method for acquiring the location information of the listener UE based on the idea of the present invention is within the protection scope of the embodiment of the present invention.

504. And the short-distance service functional entity acquires a broadcast code corresponding to the service.

Specifically, the detailed technical features of step 504 can be referred to in step 403 of the above embodiment, which is not described again in this embodiment of the present invention.

505. And the short-distance service functional entity sends a short-distance service request response message to the broadcaster UE, wherein the short-distance service request response message comprises the broadcast code and the position information of the listener UE.

The short-distance service request response message sent by the short-distance service functional entity to the broadcaster UE not only includes the broadcast code corresponding to the service requested to be broadcasted by the broadcaster UE, but also includes the position information of the listener UE requesting to monitor the service requested to be broadcasted by the broadcaster.

The broadcaster UE can judge whether the listener UE is in the broadcasting range of the broadcaster UE for the service according to the position information of the listener UE and the position information of the broadcaster UE, if so, the broadcaster UE broadcasts the service through the broadcast code, and if not, the broadcaster UE does not broadcast the service, so that the efficiency of performing short-distance service by the broadcaster UE is improved.

Further, the proximity service functional entity may further send identification information of the listener UE, such as the IMSI of the listener UE, or identity identification information of the listener UE on the third-party application, to the broadcaster UE, and when the broadcaster UE only wants a friend in a preset friend list to monitor a service broadcasted by itself, the broadcaster UE may further determine, through the identification information of the listener UE, whether the listener UE is a UE in the preset friend list, if so, perform broadcasting, and if not, perform no broadcasting.

In the method, after the short-distance service functional entity judges that a listener UE requesting to monitor a service requested to be broadcasted by a broadcaster exists, a broadcast code corresponding to the service is distributed to the broadcaster UE, the position information of the listener UE is sent to the broadcaster UE, and the broadcaster UE determines whether to perform the short-distance service by judging whether the listener UE is in the broadcasting range of the broadcaster UE to the service, so that the efficiency of performing the short-distance service by the broadcaster UE is improved.

Further, to avoid the problem that the proximity service efficiency of the broadcaster UE is low due to the fact that the listener UE exists but the listener UE is not within the broadcast range of the broadcaster UE, an embodiment of the present invention further provides a method for implementing the proximity service, where, with reference to fig. 6, the method includes:

601. the method comprises the following steps that a short-distance service functional entity receives a short-distance service request message sent by a broadcaster User Equipment (UE), wherein the short-distance service request message comprises information of a service requested to be broadcasted by the broadcaster UE and position information of the broadcaster UE.

Specifically, the broadcaster UE needs to report location information of the broadcaster UE to the proximity service function entity in addition to sending information of a service requesting broadcast to the proximity service function entity, so that the proximity service function entity determines whether to authorize the proximity service request of the broadcaster UE according to the location information of the broadcaster UE.

Further, the context information created by the proximity service functional entity for the broadcaster UE may further include location information of the broadcaster UE.

602. And the short-distance service functional entity determines that the listener UE requesting to monitor the service exists according to the information of the service.

603. And the short-distance service functional entity acquires the position information of the listener UE.

Specifically, the detailed technical features of step 602 and step 603 may refer to step 402 and step 403 in the above embodiment, which is not described again in this embodiment of the present invention.

604. And the short-distance service functional entity determines that the distance between the broadcaster UE and the listener UE is within a preset range according to the position information of the broadcaster UE and the listener UE.

After obtaining the location information of the broadcaster UE, the proximity service functional entity preliminarily determines a distance between the broadcaster UE and the listener UE, for example, the proximity service functional entity presets a preset range, where the preset range may be a maximum range that the broadcaster UE can broadcast, if the proximity service functional entity determines that the distance between the broadcaster UE and the listener UE exceeds the preset range, the proximity service functional entity determines that the broadcaster UE is not authorized to perform the proximity service, and if the distance between the broadcaster UE and the listener UE is within the preset range, the proximity service functional entity determines that the broadcaster UE is authorized to perform the proximity service.

605. And the short-distance service functional entity acquires a broadcast code corresponding to the service.

After the short-distance service functional entity judges that the distance between the broadcaster UE and the listener UE is within a preset range, the short-distance service functional entity judges that the broadcaster UE is authorized to carry out short-distance service, and the short-distance service functional entity distributes a broadcast code corresponding to a service requested to be broadcast by the broadcaster to the broadcaster UE.

606. And the short-distance service functional entity sends a short-distance service request response message to the broadcaster UE, wherein the short-distance service request response message comprises the broadcast code.

And the short-distance service function entity sends the broadcast code to the broadcaster UE so that the broadcaster UE broadcasts the service through the broadcast code.

Further, in some cases, the short-range service functional entity may set only one preset range, such as 200 meters, for each broadcaster UE, where the preset range may be the maximum broadcast distance that the broadcaster UE can reach, and for each broadcaster UE, due to different terminal types or different short-range service levels subscribed by the broadcaster UE, the broadcast ranges of the broadcaster UE may be different, for example, the broadcast range of a broadcaster UE with a higher level may be 190 meters, and the broadcast range of a broadcaster UE with a lower level may be only 100 meters, when the short-range service functional entity determines that the distance between the listener UE and the broadcaster UE is within 200 meters, the broadcaster UE is authorized to perform short-range service, and at this time, the listener UE may be within the broadcast range of the broadcaster UE or may not be within the broadcast range of the broadcaster UE, however, the short-distance functional entity excludes the listener UE which is not necessarily within the broadcasting range of the broadcaster UE through the preset range, thereby improving the efficiency of the short-distance service of the broadcaster UE.

However, in order to further improve the efficiency of the proximity service of the broadcaster UE, the proximity service functional entity may send, to the broadcaster UE, not only the broadcast code corresponding to the information of the service requested to be broadcast by the broadcaster, but also the location information of the listener UE, and the broadcaster UE may determine, according to the location information of the listener UE, whether the listener UE is within its own broadcast range, and determine whether to broadcast the service, so as to further avoid the problem that the proximity service efficiency of the broadcaster UE is low because the listener UE is not within the broadcast range of the broadcaster UE.

The embodiment of the invention provides a method for realizing a near field service, in the method, after a near field service functional entity judges that a listener UE requesting to monitor a service requested to be broadcasted by a broadcaster exists, the near field service entity acquires position information of the listener UE and judges whether the distance between the broadcaster UE and the listener UE is within a preset range, if so, the near field service functional entity acquires a broadcast code corresponding to the service and sends the broadcast code to the broadcaster UE, thereby reducing the problem of low near field service efficiency of the broadcaster UE caused by the fact that the listener UE exists but is not within the broadcast range of the broadcaster UE. And the short-distance service entity can also send the position information of the listener UE to the broadcaster UE, and the broadcaster UE judges whether the listener UE is in the own broadcast range or not according to the position information of the listener UE and determines whether to broadcast the service, so that the problem of low short-distance service efficiency of the broadcaster UE caused by the fact that the listener UE is not in the broadcast range of the broadcaster UE is further avoided.

Fig. 4 to fig. 6 are corresponding embodiments of increasing the efficiency of the proximity service of the broadcaster UE, and in order to increase the efficiency of the proximity service of the listener, in conjunction with fig. 7, an embodiment of the present invention provides a method for a proximity service, where the method includes:

701. the short-distance service function entity receives a short-distance service request message sent by User Equipment (UE) of a listener or a short-distance service function entity of a Home Public Land Mobile Network (HPLMN) of the UE of the listener, wherein the short-distance service request message comprises information of a service requested to be monitored by the UE of the listener.

In the embodiment of the present invention, when the listener UE needs to initiate a proximity service, the listener UE sends a proximity service request message to a proximity service functional entity of its HPLMN, where the proximity service request message includes information of a service requested to be monitored by the listener UE, and the information of the service at least includes information of an APP ID of a third party application used by the listener UE and information of a proximity service application identifier ProSe APP ID corresponding to the service.

For example, the listener UE requests to monitor information of a friend of a third party, such as a WeChat, where the information of the service includes an APP ID corresponding to the WeChat and identification information of the friend, the listener UE requests to monitor, on the WeChat.

The execution main body of the embodiment of the invention is a short-distance service function entity serving the PLMN which distributes the service, when the listener UE and the broadcaster UE which broadcasts the service which the listener requests to monitor belong to the same PLMN, the listener UE directly sends a short-distance service request message to the execution main body which corresponds to the embodiment of the invention, namely the short-distance service function entity serving the PLMN which distributes the information of the service which the listener requests to monitor, when the listener UE and the broadcaster UE do not belong to the same PLMN, the listener UE sends the short-distance service request message to the short-distance service function entity of the HPLMN of the listener UE, and then the short-distance service request message is forwarded to the short-distance service function entity serving the PLMN which distributes the service which the listener requests to monitor by the short-distance service function entity of the HPLMN of the listener UE The short-range service function entity of the PLMN of information.

Of course, according to the need of network side authentication and the need of specifying the type of the listener UE, the proximity service request message may further include identification information of the listener UE, such as IMSI or MSISDN of the broadcaster UE, and the proximity service type message of the listener UE, for indicating that the listener UE is a listener.

The method comprises the following steps that the information of the service requested to be monitored by the monitoring party UE is carried in a short-distance service request message by the monitoring party UE and is used for requesting the short-distance service functional entity to distribute a broadcast code corresponding to the service to the monitoring party UE, so that the monitoring party UE monitors the service through the broadcast code.

702. And the short-distance service functional entity determines that the broadcaster UE requesting to broadcast the service exists according to the service information.

For example, if the proximity service functional entity does not allocate a broadcast code corresponding to the service requested to be monitored by the listener to any UE before receiving the proximity service request message, the proximity service functional entity determines that there is no broadcaster UE requesting to broadcast the service.

If the short-distance service functional entity allocates a broadcast code corresponding to the service to the broadcaster UE before receiving the short-distance service request message, the short-distance service functional entity records identification information of the broadcaster UE, such as IMSI of the broadcaster UE, information of the service, the broadcast code corresponding to the service and effective duration information of the broadcast code, in context information created for the broadcaster UE, and after receiving the short-distance service request message of the listener UE, the short-distance service functional entity acquires the broadcast code from the context information of the broadcaster UE according to the information of the service and acquires information of the broadcaster UE requesting to broadcast the service. Of course, besides the above possible implementation manners, there may be a plurality of methods for the proximity service functional entity to obtain the broadcaster UE broadcasting the service according to the service information, which is not limited in this embodiment of the present invention.

And after acquiring the information of the broadcaster UE, the short-distance service functional entity judges whether the broadcaster UE requests to broadcast the service through the broadcast code, if so, the short-distance service functional entity judges that the broadcaster UE currently broadcasting the service exists, and if not, the short-distance service functional entity judges that the broadcaster UE currently broadcasting the service does not exist.

It should be noted that, if the proximity service functional entity determines that there is no broadcaster UE broadcasting the service currently according to the service information, the proximity service functional entity may create context information for the listener UE, where the context information includes identification information of the listener UE, such as IMSI information, and information of a service requested to be monitored by the listener UE. And when the broadcaster UE broadcasting the service exists and starts broadcasting the service, the short-distance service functional entity distributes a broadcast code corresponding to the service requested to be monitored by the listener UE to the listener UE according to the context information of the listener UE.

703. And the short-distance service functional entity acquires a broadcast code corresponding to the service.

If there is a broadcaster UE currently broadcasting a service requested to be monitored by the listener UE, the proximity service functional entity obtains a broadcast code corresponding to the service of the broadcaster UE, for example, obtains the broadcast code corresponding to the service through context information of the broadcaster UE, if there is no broadcaster UE, the proximity service functional entity determines that the listener UE is not authorized to perform the proximity service, specifically, the proximity service functional entity may not send any message to the listener UE, and may also send an indication message to the listener UE, for indicating that the listener UE passes authentication on the network side, but there is no broadcaster UE broadcasting the service requested to be monitored by the listener UE temporarily, and the proximity service functional entity does not send a broadcast code to the listener UE.

704. And the short-distance service functional entity sends a short-distance service request response message to the listener UE or the HPLMN short-distance service functional entity of the listener UE, wherein the short-distance service request response message comprises the broadcast code.

The short-distance service function entity of the PLMN which serves to distribute the information of the service requested to be monitored by the listener sends the broadcast code corresponding to the service requested to be monitored by the listener to the listener UE or sends the broadcast code to the short-distance service function entity of the HPLMN of the listener UE through the received short-distance service response message, the short-distance service function entity of the HPLMN of the listener UE forwards the short-distance service response message to the listener UE, and the listener UE monitors the service through the broadcast code.

Specifically, the proximity service request response message may further include information such as valid duration of the broadcast code, if the proximity service functional entity creates context information for the listener UE before, the proximity service functional entity may further store the broadcast code and the valid duration information of the broadcast code in the context information of the listener UE, if the proximity service functional entity does not create the context information for the listener UE, the proximity service functional entity creates the context information for the listener UE, and the context information may include identification information of the listener UE, information of a service requested to be monitored by the listener UE, broadcast code information corresponding to the service and valid duration information of the broadcast code, and the like.

In the method, after receiving a short-distance service request message of a listener UE requesting to monitor a service, a short-distance service functional entity first judges whether a broadcaster UE currently broadcasting the service requested to be monitored by the listener exists, and if so, the short-distance service functional entity authorizes the listener UE to monitor the service, thereby avoiding the problem of low short-distance service efficiency caused by the fact that the listener UE still monitors the service under the condition that the broadcaster UE currently broadcasting the service does not exist.

Further, the range that the listener UE needs to monitor is limited, for example, the listener UE only wants to monitor information of a fast food restaurant within a radius 100 with the listener UE as a center, but if the fast food restaurant broadcasts a service message, but the listener UE is far away from the fast food restaurant, the fast food restaurant is not within the range that the listener UE wants to monitor, which results in low short-range service efficiency of the listener UE, and in order to solve the problem, with reference to fig. 8, an embodiment of the present invention further provides a method for implementing short-range service, where the method includes:

801. the short-distance service function entity receives a short-distance service request message sent by User Equipment (UE) of a listener or a short-distance service function entity of a Home Public Land Mobile Network (HPLMN) of the UE of the listener, wherein the short-distance service request message comprises information of a service requested to be monitored by the UE of the listener.

802. And the short-distance service functional entity determines that the broadcaster UE requesting to broadcast the service exists according to the service information.

803. And the short-distance service functional entity acquires the position information of the broadcaster UE.

804. And the short-distance service functional entity acquires a broadcast code corresponding to the service.

805. And the short-distance service function entity sends a short-distance service request response message to the listener UE or the HPLMN short-distance service function entity of the listener UE, wherein the short-distance service request response message comprises the broadcast code and the position information of the broadcaster UE.

Optionally, the proximity service functional entity may further send, to the listener UE, identification information of a broadcaster UE that is currently broadcasting a service requested to be monitored by the listener UE, such as a network identity of the broadcaster UE, or identification information of the broadcaster UE on the third-party application, where when the listener UE only wishes to monitor UEs in a specific list, the listener UE determines whether to monitor the broadcaster UE according to the location information of the broadcaster UE and the identification information of the broadcaster UE.

Specifically, the detailed technical features of steps 801 to 805 can be referred to the embodiment corresponding to fig. 5, and the embodiment of the present invention is not described again.

In the method, after judging that a broadcaster UE currently broadcasting a service requested to be monitored by the listener UE exists, the near service functional entity allocates a broadcast code corresponding to the service of the broadcaster UE to the listener UE and sends position information of the broadcaster UE to the listener UE, and the listener UE determines whether to perform the near service by judging whether the broadcaster UE is within a monitoring range of the listener UE on the service, so that the efficiency of performing the near service by the listener UE is improved.

Further, to solve the problem that the proximity service efficiency of the listener UE is low, an embodiment of the present invention further provides a method for implementing the proximity service, where, with reference to fig. 9, the method includes:

901. the short-distance service function entity receives a short-distance service request message sent by User Equipment (UE) of a listener or a short-distance service function entity of a Home Public Land Mobile Network (HPLMN) of the UE of the listener, wherein the short-distance service request message comprises information of a service requested to be monitored by the UE of the listener.

Specifically, the context information of the listener UE further includes location information of the listener UE.

902. And the short-distance service functional entity determines that the broadcaster UE requesting to broadcast the service exists according to the service information.

903. And the short-distance service functional entity acquires the position information of the broadcaster UE.

904. And the short-distance service functional entity determines that the distance between the broadcaster UE and the listener UE is within a preset range according to the position information of the broadcaster UE and the position information of the listener UE.

905. And the short-distance service functional entity acquires a broadcast code corresponding to the service.

906. And the short-distance service functional entity sends a short-distance service request response message to the listener UE or the HPLMN short-distance service functional entity of the listener UE, wherein the short-distance service request response message comprises the broadcast code.

And the short-distance service functional entity sends the broadcast code to the listener UE so that the listener UE monitors the service through the broadcast code.

Furthermore, in order to improve the efficiency of the proximity service of the listener UE, the proximity service functional entity sends the broadcast code corresponding to the service requested to be monitored by the listener UE to the listener UE, and also sends the location information of the broadcaster UE to the listener UE, and the listener UE determines whether the broadcaster UE is within the monitoring range of the listener UE or not according to the location information of the broadcaster UE, and determines whether the service is monitored or not, so that the problem of low efficiency of the proximity service of the listener UE due to the fact that the broadcaster UE is not within the monitoring range of the listener UE is further avoided.

Specifically, the detailed technical features of steps 901 to 906 can be referred to in the embodiment corresponding to fig. 6, and are not described again in the embodiment of the present invention.

The embodiment of the invention provides a method for realizing a near field service, in the method, after a near field service functional entity judges that a broadcaster UE currently broadcasting a service requested to be monitored by a listener UE exists, the near field service entity acquires position information of the broadcaster UE and judges whether the distance between the broadcaster UE and the listener UE is within a preset range, if so, the near field service functional entity acquires a broadcast code corresponding to the service and sends the broadcast code to the listener UE, thereby reducing the problem of low near field service efficiency of the listener UE caused by the fact that the broadcaster UE currently broadcasting the service requested to be monitored by the listener UE is not within the monitoring range of the listener UE. And the short-distance service entity can also send the position information of the broadcaster UE to the listener UE, and the listener UE judges whether to monitor the service according to the position information of the broadcaster UE, so that the problem of low short-distance service efficiency of the listener UE caused by the fact that the broadcaster UE is not in the monitoring range of the listener UE is further solved.

In order to improve the efficiency of the proximity service of the UE, an embodiment of the present invention further provides a method for proximity service, where, with reference to fig. 10, the method includes:

1001. user Equipment (UE) sends a near field service request message to a near field service functional entity, wherein the near field service functional entity serves a Home Public Land Mobile Network (HPLMN) of the UE, and the near field service request message comprises position information of the UE and information of a service requested to be broadcasted by the UE; or the proximity service request message contains the position information of the UE and the information of the service requested to be monitored by the UE.

The method comprises the steps that UE sends a near field service request message to a near field service functional entity, wherein the near field service functional entity is a near field service functional entity of an HPLMN of the UE, and the near field service request message carries position information of the UE.

When the UE is a broadcaster, the short-distance service request message carries the position information of the UE and the information of the service requested to be broadcasted by the UE, and when the UE is a listener, the short-distance service request message carries the position information of the UE and the information of the service requested to be listened by the UE.

Specifically, when the UE is a broadcaster, the network side determines whether to authorize the UE to perform the proximity service according to the information of the service requested to be broadcasted by the UE and the location information of the UE, referring to an embodiment corresponding to fig. 6, and when the UE is a listener, the network side determines whether to authorize the UE to perform the proximity service according to the information of the service requested to be monitored by the UE and the location information of the UE, referring to an embodiment corresponding to fig. 9, which is not described in detail for the embodiment of the present invention.

As can be seen from the embodiment corresponding to fig. 6, when the UE is a broadcaster and the distance between the listener UE requesting to monitor the service of the UE and the UE is within a preset range, the network side authorizes the UE to perform the short-distance service, otherwise does not authorize the UE to perform the short-distance service, thereby avoiding the problem of low efficiency of the short-distance service of the UE due to the fact that the listener UE is not within the broadcast range of the UE when the listener UE monitoring the service requested to be broadcast by the UE exists.

As can be seen from the embodiment corresponding to fig. 9, when the UE is a listener and the distance between the broadcaster UE that the UE requests to monitor and the UE is within a preset range, the network side authorizes the UE to perform the proximity service, otherwise does not authorize the UE to perform the proximity service, thereby avoiding the problem that the efficiency of the proximity service of the UE is low due to the fact that the broadcaster UE broadcasts the service that the UE requests to monitor is not within the monitoring range of the UE.

Further, when the UE is a broadcaster UE, the network side determines that there is a listener UE requesting to monitor a service of the UE, and a distance between the listener UE and the UE is within a preset range, or the UE is a listener UE, the network side determines that there is a broadcaster UE broadcasting the request of the UE and monitoring, and a distance between the broadcaster UE and the UE is within a preset range, after the UE sends a proximity service request message to the proximity service functional entity, with reference to fig. 11, the method further includes:

1002. and the UE receives a near field service request response message sent by the near field service functional entity, wherein the near field service request response message contains a broadcast code corresponding to the service.

1003. And the UE performs the short-distance service through the broadcast code.

And after the UE acquires the broadcast code corresponding to the service, broadcasting or monitoring the service through the broadcast code.

Further, in another optional embodiment, the proximity service request response message may further include: location information of the broadcaster UE or listener UE.

Specifically, if the UE is a listener, and the UE determines that the distance between the UE and the broadcaster UE is within a preset range according to the location information of the UE and the location information of the broadcaster UE, the UE broadcasts the service requesting broadcast through the broadcast code.

If the UE is a broadcaster, the UE determines that the distance between the UE and the listener UE is within a preset range according to the position information of the UE and the position information of the listener UE, and the UE monitors the service requested to be monitored through the broadcast code.

It should be noted that, for detailed technical features of the embodiments of the present invention, reference may be made to the embodiments corresponding to fig. 2 to fig. 7, and details of the embodiments of the present invention are not repeated herein.

The embodiment of the invention provides a method for realizing near field service, in the method, UE enables a network side to judge whether to authorize a near field service request of the UE according to the position information of the UE by reporting the position information of the UE, if the UE is a broadcaster UE, when the listener UE requesting to monitor the UE exists but the listener UE requesting to monitor the UE is not in the broadcast range of the UE, or the UE is a listener UE, a broadcaster UE currently broadcasting the service requested to monitor by the UE exists but the broadcaster UE broadcasting the service requested to monitor by the UE is not in the monitor range of the UE, the network side does not authorize the near field service request of the UE, thereby improving the near field efficiency of the UE. Furthermore, the network side can also send the location information of the broadcaster UE or the listener UE to the UE, and the UE determines whether to perform the proximity service according to the location information of the broadcaster UE or the listener UE, thereby further improving the proximity service efficiency of the UE.

In order to solve the problem of low efficiency of the proximity service of the UE, an embodiment of the present invention further provides a system for implementing the proximity service, where the system includes the proximity service functional entity in the embodiment corresponding to fig. 2 and the UE in the embodiment corresponding to fig. 3.

The embodiment of the invention provides a system for realizing near field service, which comprises a near field service functional entity and UE, wherein the UE may be a broadcaster UE or a listener UE, and when the broadcaster UE requests a broadcast service, after the short-distance service functional entity at the network side determines that a listener UE requesting to monitor the service exists, the broadcaster UE is authorized to perform short-distance service, when the listener requests to listen to the service, the short-distance service functional entity at the network side authorizes the listener UE to perform the short-distance service after determining that the broadcaster UE requesting to broadcast the service exists, thereby avoiding that, when there is no listener UE requesting to listen to the service, the broadcaster UE still performs the proximity service, or the problem of low UE near field service efficiency caused by that the monitoring UE still performs near field service does not exist in the broadcaster UE requesting to broadcast the service. The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A proximity services functional entity, characterized in that the proximity services functional entity comprises: the device comprises a receiving unit, a first determining unit, a first acquiring unit and a sending unit;

the receiving unit is used for receiving a near field service request message sent by broadcaster User Equipment (UE), wherein the near field service request message comprises information of a service requested to be broadcasted by the broadcaster UE;

the first determining unit is configured to determine, according to the service information, that there is a listener UE that requests to monitor the service, and allocate a broadcast code corresponding to the service to the broadcaster UE;

the sending unit is configured to send a proximity service request response message to the broadcaster UE, where the proximity service request response message includes the broadcast code;

the proximity service functional entity further comprises: a second acquisition unit;

2. The proximity services functional entity according to claim 1, wherein the proximity services request message further includes location information of the broadcaster UE, and the proximity services functional entity further comprises: a second acquiring unit and a second determining unit;

3. The proximity services functional entity of claim 2, wherein the proximity services request response message further includes location information of the listener UE.

4. The short-range service functional entity of claim 3, wherein the short-range service request message further includes identification information of the broadcaster UE, and the short-range service request response message further includes valid duration information of the broadcast code, and the short-range service functional entity further includes: a recording unit;

5. The near field service functional entity according to any of claims 1 to 4, wherein the first determining unit is specifically configured to: and if the context information of the listener UE stored by the short-distance service functional entity contains the service information, determining that the listener UE requesting to monitor the service exists.

6. A proximity services functional entity, characterized in that the proximity services functional entity comprises: the device comprises a receiving unit, a first determining unit, a first acquiring unit and a sending unit;

the first determining unit is configured to determine, according to the service information, that there is a broadcaster UE that requests to broadcast the service, and allocate a broadcast code corresponding to the service to the broadcaster UE;

the sending unit is configured to send a proximity service request response message to the listener UE or an HPLMN proximity service functional entity of the listener UE, where the proximity service request response message includes the broadcast code;

the proximity service request message further includes location information of the listener UE, and the proximity service functional entity further includes: a second acquiring unit and a second determining unit;

7. The proximity services functional entity according to claim 6, further comprising: a second acquisition unit;

8. The proximity services functional entity according to claim 6, wherein the proximity services request response message further comprises: location information of the broadcaster UE.

9. The proximity services functional entity according to claim 8, further comprising: a recording unit;

10. The near field service functional entity according to any of claims 6 to 9, wherein the first determining unit is specifically configured to: and if the context information of the broadcaster UE stored by the short-distance service functional entity contains the service information, determining that the broadcaster UE broadcasting the service has a request.

11. A User Equipment (UE), the UE comprising:

a sending unit, configured to send a proximity service request message to a proximity service functional entity, where the proximity service functional entity serves a home public land mobile network HPLMN of the UE, and the proximity service request message includes location information of the UE and information of a service requested to be broadcasted by the UE; or the short-distance service request message contains the position information of the UE and the information of the service which the UE requests to monitor;

the UE further comprises: a receiving unit and an execution unit;

the receiving unit is configured to receive a proximity service request response message sent by the proximity service functional entity, where the proximity service request response message includes a broadcast code corresponding to the service, and the broadcast code is allocated to the proximity service functional entity;

the execution unit is used for performing short-distance service through the broadcast code;

the proximity service request response message further includes location information of the listener UE, and the UE further includes: a determination unit;

12. The UE of claim 11, wherein the proximity service request response message further includes location information of a broadcaster UE, and wherein the UE further includes: a determination unit;

13. A communication apparatus, characterized in that the communication apparatus comprises:

a sending unit, configured to send a proximity service request message to a proximity service functional entity, where the proximity service request message includes information of a service requested to be broadcasted by a broadcaster UE;

a receiving unit, configured to receive a proximity service request response message from the proximity service functional entity, where the proximity service request response message includes the broadcast code;

the proximity service request response message also contains the position information of the listener UE.

14. The communications apparatus of claim 13, wherein the proximity service request message further includes location information of the broadcaster UE, and wherein the proximity service request response message further includes location information of a listener UE.

15. The communications apparatus as claimed in claim 14, wherein the proximity service request message further includes identification information of the broadcaster UE, and the proximity service request response message further includes valid duration information of the broadcast code.

16. A communication apparatus, characterized in that the communication apparatus comprises:

a sending unit, configured to send a proximity service request message to a proximity service functional entity, where the proximity service request message includes information of a service requested to be monitored by a listener UE;

a receiving unit, configured to receive a proximity service request response message from the proximity service functional entity, where the proximity service request response message includes a broadcast code;

the proximity service request response message also contains the location information of the broadcaster UE.

17. A proximity services functional entity, characterized in that the proximity services functional entity comprises:

a receiving unit, configured to receive a proximity service request message from a user equipment UE, where the proximity service functional entity serves a home public land mobile network HPLMN of the UE, and the proximity service request message includes location information of the UE and information of a service requested to be broadcasted by the UE; or the short-distance service request message contains the position information of the UE and the information of the service which the UE requests to monitor;

also comprises a sending unit which is used for sending the data,

the sending unit is used for responding to a near field service request message and sending a near field service request response message to the UE, wherein the near field service request response message contains a broadcast code corresponding to the service; the proximity service request response message also comprises the position information of the listener UE.

18. The proximity services functional entity according to claim 17, wherein the proximity services request response message further includes location information of a broadcaster UE.

19. A method for proximity service implementation, the method comprising:

the method comprises the following steps that a near field service functional entity receives a near field service request message sent by a broadcaster User Equipment (UE), wherein the near field service request message comprises information of a service requested to be broadcasted by the broadcaster UE;

the short-distance service functional entity determines that a listener UE requesting to monitor the service exists according to the information of the service, and distributes a broadcast code corresponding to the service to the broadcaster UE;

the near field service functional entity sends a near field service request response message to the broadcaster UE, wherein the near field service request response message comprises the broadcast code;

before the short-distance service functional entity acquires the broadcast code corresponding to the service, the method further comprises:

20. The method of claim 19, wherein the proximity service request message further includes location information of the broadcaster UE, and before the proximity service functional entity obtains a broadcast code corresponding to the service, the method further comprises:

21. The method of claim 20, wherein the proximity service request response message further comprises location information of the UE of the listener.

22. The method of claim 20, wherein the proximity service request message further includes identification information of the broadcaster UE, the proximity service request response message further includes valid duration information of the broadcast code, and after the proximity service functional entity sends the proximity service request response message to the broadcaster UE, the method further includes:

23. The method according to any of claims 19-22, wherein the determining, by the near field service functional entity, that there is a listener UE requesting to listen to the service according to the information of the service specifically comprises:

24. A method for proximity service implementation, the method comprising:

the method comprises the steps that a short-distance service functional entity receives a short-distance service request message sent by User Equipment (UE) of a listener or a short-distance service functional entity of a Home Public Land Mobile Network (HPLMN) of the UE of the listener, wherein the short-distance service request message comprises information of a service requested to be monitored by the UE of the listener;

the short-distance service functional entity determines that broadcaster UE requesting to broadcast the service exists according to the service information, and distributes a broadcast code corresponding to the service to the broadcaster UE;

the short-distance service functional entity sends a short-distance service request response message to the listener UE or a HPLMN short-distance service functional entity of the listener UE, wherein the short-distance service request response message comprises the broadcast code;

if the proximity service request message further includes location information of the listener UE, and before the proximity service functional entity acquires the broadcast code corresponding to the service, the method further includes:

25. The method of claim 24, wherein before the short-range service functional entity obtains the broadcast code corresponding to the service, the method further comprises:

26. The method of claim 24, wherein the proximity service request response message further comprises location information of the broadcaster UE.

27. The method of claim 26, wherein the proximity service request message further includes identification information of the UE, and after the proximity service functional entity receives the proximity service request message sent by the user equipment UE of the listener or the proximity service functional entity of the home public land mobile network HPLMN of the UE of the listener, the method further comprises:

28. The method according to any of claims 24-27, wherein the determining, by the short-range service functional entity, that there is a broadcaster UE requesting to broadcast the service according to the information of the service specifically comprises:

29. A method for proximity service implementation, the method comprising:

user Equipment (UE) sends a near field service request message to a near field service functional entity, wherein the near field service functional entity serves a Home Public Land Mobile Network (HPLMN) of the UE, and the near field service request message comprises position information of the UE and information of a service requested to be broadcasted by the UE; or the short-distance service request message contains the position information of the UE and the information of the service which the UE requests to monitor;

after the UE sends the proximity service request message to the proximity service functional entity, the method further includes:

the UE receives a near field service request response message sent by the near field service functional entity, wherein the near field service request response message contains a broadcast code corresponding to the service, and the broadcast code is distributed to the near field service functional entity;

the UE performs the short-distance service through the broadcast code;

the short-distance service request response message also comprises the position information of the listener UE;

30. The method of claim 29, wherein the proximity service request response message further includes location information of a broadcaster UE;

31. A method for proximity service implementation, the method comprising:

the method comprises the steps that a broadcaster User Equipment (UE) sends a near field service request message to a near field service functional entity, wherein the near field service request message comprises information of a service requested to be broadcasted by the broadcaster UE;

the broadcaster UE receives a near field service request response message from the near field service functional entity, wherein the near field service request response message comprises the broadcast code;

32. The method of claim 31, wherein the proximity service request message further includes location information of the broadcaster UE, and wherein the proximity service request response message further includes location information of the listener UE.

33. The method of claim 32, wherein the proximity service request message further includes identification information of the broadcaster UE, and wherein the proximity service request response message further includes valid duration information of the broadcast code.

34. A method for realizing short-range service is applied to listener User Equipment (UE) or a short-range service functional entity of a Home Public Land Mobile Network (HPLMN) of the listener UE, and is characterized by comprising the following steps:

sending a near field service request message to a near field service functional entity, wherein the near field service request message comprises information of a service requested to be monitored by the monitoring party UE;

receiving a near field service request response message from the near field service functional entity, wherein the near field service request response message contains a broadcast code;

35. A method for proximity service implementation, the method comprising:

a near field service functional entity receives a near field service request message from User Equipment (UE), wherein the near field service functional entity serves a Home Public Land Mobile Network (HPLMN) of the UE, and the near field service request message comprises position information of the UE and information of a service requested to be broadcasted by the UE; or the short-distance service request message contains the position information of the UE and the information of the service which the UE requests to monitor; the proximity service request response message also comprises the position information of the listener UE.

36. The method of claim 35, further comprising:

and responding to the short-distance service request message, the short-distance service functional entity sends a short-distance service request response message to the UE, wherein the short-distance service request response message contains a broadcast code corresponding to the service.

37. The method of claim 36, wherein the proximity service request response message further comprises location information of a broadcaster UE.

38. A communications apparatus, comprising: a processor coupled with a memory, the memory for storing a program or instructions that, when executed by the processor, cause the apparatus to perform the method of any of claims 19 to 23; or the like, or, alternatively,

the program or instructions, when executed by the processor, cause the apparatus to perform the method of any of claims 24 to 28; or the like, or, alternatively,

the program or instructions, when executed by the processor, cause the apparatus to perform the method of any of claims 29 to 30; or the like, or, alternatively,

the program or instructions, when executed by the processor, cause the apparatus to perform the method of any of claims 31 to 33; or the like, or, alternatively,

the program or instructions, when executed by the processor, cause the apparatus to perform the method of claim 34; or the like, or, alternatively,

the program or instructions, when executed by the processor, cause the apparatus to perform the method of any of claims 35 to 37.

39. A storage medium having stored thereon a computer program or instructions which, when executed, cause a computer to perform the method of any one of claims 19 to 23; or the like, or, alternatively,

the computer program or instructions, when executed, cause a computer to perform the method of any of claims 24 to 28; or the like, or, alternatively,

the computer program or instructions, when executed, cause a computer to perform the method of any of claims 29 to 30; or the like, or, alternatively,

the computer program or instructions, when executed, cause a computer to perform the method of any of claims 31 to 33; or the like, or, alternatively,

the computer program or instructions, when executed, cause a computer to perform the method of claim 34; or the like, or, alternatively,

the computer program or instructions, when executed, cause a computer to perform the method of any of claims 35 to 37.

40. A communication system, comprising: -a proximity services functional entity according to any of claims 1 to 5 and-a communication device according to any of claims 13 to 15.

41. A communication system, comprising: -a proximity services functional entity according to any of claims 6 to 10 and-a communication device according to claim 16.

42. A communication system, comprising: the user equipment, UE, according to any of claims 11 to 12 and the proximity services functionality according to any of claims 17 to 18.