CN107615817A

CN107615817A - The closely communication path switch method of business, apparatus and system

Info

Publication number: CN107615817A
Application number: CN201580080074.3A
Authority: CN
Inventors: 舒林; 周润泽; 朱奋勤
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-05-29
Filing date: 2015-05-29
Publication date: 2018-01-19
Anticipated expiration: 2035-05-29
Also published as: WO2016191951A1; CN107615817B

Abstract

The embodiment of the present invention provides a kind of communication path switch method of closely business, apparatus and system.The communication path switch method of closely business of the invention, including：It is determined that two user equipment (UE)s for carrying out ProSe communications are in default ProSe communication ranges, the ProSe communications are applied by the ProSe on any one UE in described two UE to be initiated in the first communication path；Each UE into described two UE sends communication path switching instruction respectively, and the application layer for the opposite end UE that the communication path switching instruction includes the mark of the ProSe applications and carries out the ProSe communications with receiving the UE of the communication path switching instruction identifies；Communication path handover request is sent to strategy and charging rule functions PCRF equipment, the communication path handover request includes the mark of ProSe applications and described two UE application layer identifies.The embodiment of the present invention lifts the utilization rate of resource, solves the problems, such as the wasting of resources.

Description

The communication path switch method of short distance business, apparatus and system

Technical field

The present embodiments relate to the communication technology more particularly to a kind of communication path switch methods of short distance business, apparatus and system.

Background technique

The extensive use applied with social category, short distance business is more and more important, including short distance discovery and short-range communication, wherein, closely discovery can make people's lives and work become more convenient, and short-range communication can directly to establish communication by close range communication techniques between user.Third generation cooperative partner program (3rd Generation Partnership Project, referred to as: 3GPP) define evolved packet system (the Evolved Packet System of enhancing, referred to as: EPS), for short distance user equipment (User Equipment, short distance business (Proximity Service is provided between referred to as: UE), referred to as: ProSe), ProSe function (ProSe Function) network element is introduced in network side, for relevant action needed for special disposal ProSe and process.

In the EPS system framework that 3GPP is defined, direct communication interface PC5 is defined between UE and UE.After UE discovery is in other UE of close position, the PC5 interface direct communication path between other UE can be established by close range communication techniques, realizes the carrying out direct communication in close range of two UE.Direct communication is carried out except through PC5 interface, evolution block core net (Evolved Packet Core can also be passed through between two short distance UE, referred to as: EPC) path carries out short-range communication, the each UE for participating in communication establishes ProSe packet data network (Packet Data Network respectively, referred to as: PDN) connect, it realizes the communication between UE and ProSe application server, the data between two UE is forwarded by ProSe application server.The demand proposed based on 3GPP for ProSe communication, PC5 interface direct communication path should be better than the path EPC, i.e. when the positional distance between two UE is near field communication range, it should carry out ProSe communication by PC5 interface direct communication path as much as possible.

In the prior art, when two UE can carry out ProSe communication by PC5 interface direct communication path, being switched to PC5 interface direct communication path from the path EPC is initiated by UE.For example, UE A initiates direct communication on PC5 interface requests that UE B, UE B is given to reply on PC5 interface directly when UE A closely directly has found that process finds that UE B is near field communication range by executing It connects letter and responds to UE A, the packet filter that UE A and UE B generates PC5 interface direct communication path respectively is used to subsequent ProSe communication service being filled into PC5 interface, and such UE A can continue ProSe by PC5 interface direct communication path with UE B and communicate.

But, the process of the communication path switching of above-mentioned ProSe communication, after ProSe communication is switched to PC5 interface direct communication path from the path EPC, network side is that the Internet resources of the EPC path allocation of the ProSe connection setup cannot repeat to be utilized by PC5 interface direct communication path, to result in waste of resources.

Summary of the invention

The embodiment of the present invention provides a kind of communication path switch method of short distance business, apparatus and system and solves the problems, such as the wasting of resources to promote the utilization rate of resource.

In a first aspect, the embodiment of the present invention provides the communication path switch method of ProSe a kind of, comprising:

Determine that two user equipment (UE)s for carrying out ProSe communication are in preset ProSe communication range, the ProSe communication is applied by the ProSe on any one UE in described two UE to be initiated in the first communication path；

Each UE into described two UE sends communication path switching instruction respectively, the communication path switching instruction includes the mark of ProSe application and carries out the application layer identification of the opposite end UE of the ProSe communication with the UE for receiving the communication path switching instruction, so that described two UE, which respectively communicate the ProSe from first communication path, switches to the second communication path；

Communication path switching request is sent to strategy and charging rule functions PCRF equipment, the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.

With reference to first aspect, in the first possible implementation of the first aspect, first communication path is the path evolution block core net EPC, and second communication path is PC5 interface direct communication path.

With reference to first aspect or the first possible implementation of first aspect, in the second possible implementation of the first aspect, determining two UE for carrying out ProSe communication be in preset ProSe communication range it is interior before, further includes:

The short distance instruction that ProSe functional network element is sent is received, the short distance instruction is ProSe functional network element transmission after determining that described two UE are in the preset ProSe communication range, The short distance instruction includes the mark of ProSe application and the application layer identification of described two UE；

Determining two UE for carrying out ProSe communication are in preset ProSe communication range, comprising:

Determine that described two UE are in the preset ProSe communication range according to short distance instruction.

With reference to first aspect, the first of first aspect is in a third possible implementation of the first aspect, described to send communication path switching instruction to the UE to any possible implementation in second, comprising:

The communication path switching instruction is sent to ProSe functional network element, so that the ProSe functional network element forwards the communication path switching instruction to the UE；Alternatively,

The communication path switching instruction directly is sent to the UE by application layer messages.

Second aspect, the embodiment of the present invention provide the communication path switch method of ProSe a kind of, comprising:

User equipment (UE) receives the communication path switching that ProSe application server is sent when determining the UE and being in preset ProSe communication range with the UE opposite end UE for carrying out ProSe communication and indicates, the ProSe communication is applied by the ProSe on the UE or the opposite end UE to be initiated in the first communication path, and the communication path switching instruction includes the mark of ProSe application and the application layer identification of the opposite end UE；

The UE is used to carry out the radio resource of the second communication path of the ProSe communication according to communication path switching instruction from serving Base Station requests；

The UE establishes second communication path between the opposite end UE using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path.

In conjunction with second aspect, in the first possible implementation of the second aspect, the UE receives the communication path switching that ProSe application server is sent when determining the UE and being in preset ProSe communication range with the UE opposite end UE for carrying out ProSe communication and indicates, comprising:

The UE receives the communication path switching instruction that the ProSe application server is sent by ProSe functional network element；Alternatively,

The UE receives the communication path switching instruction that the ProSe application server is directly transmitted by application layer messages.

In conjunction with the possible implementation of the first of second aspect or second aspect, in a second possible implementation of the second aspect, the method also includes:

The UE receives the bearing modification instruction that grouped data network gateway PDN GW is sent, and the bearing resource on first communication path is updated according to bearing modification instruction.

The third aspect, the embodiment of the present invention provide the communication path switch method of ProSe a kind of, comprising:

Receive the communication path switching request that ProSe application server is sent when determining that two user equipment (UE)s for carrying out ProSe communication are in preset ProSe communication range, the ProSe communication is applied by the ProSe on any one UE in described two UE to be initiated in the first communication path, and the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE；

The corresponding strategy of Business Stream and charging control PCC strategy for updating the communication of the ProSe on first communication path according to the communication path switching request；

The updated PCC strategy is sent to grouped data network gateway PDN GW, so that the PDN GW distributes to the bearing resource of first communication path according to the updated PCC policy update.

Fourth aspect, the embodiment of the present invention provide the communication path switch method of ProSe a kind of, comprising:

First user equipment (UE) is determined to be in preset ProSe communication range with the 2nd UE for carrying out ProSe communication, and the ProSe communication is applied by the ProSe on 2nd UE of the first UE or described to be initiated in the first communication path；

First UE is used to carry out the radio resource of the second communication path of the ProSe communication from serving Base Station requests；

First UE establishes second communication path between the 2nd UE using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path；

First UE sends the first switching request of communication path to ProSe application server, first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE, so that the ProSe application server sends the second switching request of communication path to strategy and charging rule functions PCRF equipment, the PCRF equipment is made more to be newly assigned to the bearing resource of first communication path.

It is in the first possible implementation of the fourth aspect, described to send the first switching request of communication path to ProSe application server in conjunction with fourth aspect, comprising:

First UE sends first switching request of communication path to ProSe functional network element, so that the ProSe functional network element forwards first switching request of communication path to the ProSe application server；Alternatively,

First UE directly sends first switching request of communication path to the ProSe application server by application layer messages.

In conjunction with fourth aspect, in the second possible implementation of the fourth aspect, described communicate the ProSe from first communication path is switched to after second communication path, further includes:

First UE determines whether to carry out the ProSe communication with the 3rd UE on first communication path；

If it is determined that carrying out the ProSe communication with the 3rd UE on first communication path, then the first UE sends the request of ProSe bearing modification to equipment of the core network, to discharge the bearing resource with the 2nd UE for distributing to first communication path；

If it is determined that not carrying out the ProSe communication with the 3rd UE on first communication path, then the first UE sends ProSe packet data network PDN connection to equipment of the core network and deactivates request, to discharge all bearing resources for distributing to first communication path.

5th aspect, the embodiment of the present invention provide the communication path switch method of ProSe a kind of, comprising:

Receive the first switching request of communication path that the first user equipment (UE) is sent when the 2nd UE for determining with carrying out ProSe communication is in preset ProSe communication range, the ProSe communication is applied by the ProSe on 2nd UE of the first UE or described to be initiated in the first communication path, and first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE；

The second switching request of communication path is sent to strategy and charging rule functions PCRF equipment according to first switching request of communication path, second switching request of communication path includes the mark of the ProSe application, the application layer identification using layer identification and the 2nd UE of first UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.

In conjunction with the 5th aspect, in the first possible implementation of the 5th aspect, first switching request of communication path for receiving the first UE and being sent when the 2nd UE for determining with carrying out ProSe communication is in preset ProSe communication range, comprising:

Receive the first switching request of the communication path that the first UE is sent by ProSe functional network element；Alternatively,

Receive the first switching request of the communication path that the first UE is directly transmitted by application layer messages.

6th aspect, the embodiment of the present invention provide a kind of ProSe application server, comprising:

Determining module, for determining that two user equipment (UE)s for carrying out ProSe communication are in preset In ProSe communication range, the ProSe communication is applied by the ProSe on any one UE in described two UE to be initiated in the first communication path；

Sending module, communication path switching instruction is sent respectively for each UE into described two UE, the communication path switching instruction includes the mark of ProSe application and carries out the application layer identification of the opposite end UE of the ProSe communication with the UE for receiving the communication path switching instruction, so that described two UE, which respectively communicate the ProSe from first communication path, switches to the second communication path；Communication path switching request is sent to strategy and charging rule functions PCRF equipment, the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.

In conjunction with the 6th aspect, in the first possible implementation of the 6th aspect, first communication path is the path evolution block core net EPC, and second communication path is PC5 interface direct communication path.

In conjunction with the first possible implementation of the 6th aspect or the 6th aspect, in second of possible implementation of the 6th aspect, further includes:

Receiving module, for receiving the short distance instruction of ProSe functional network element transmission, the short distance instruction is ProSe functional network element transmission after determining that described two UE are in the preset ProSe communication range, and the short distance instruction includes the mark of ProSe application and the application layer identification of described two UE；

The determining module is specifically used for determining that described two UE are in the preset ProSe communication range according to short distance instruction.

In conjunction with the 6th aspect, the 6th aspect the first to any possible implementation in second, in the third possible implementation of the 6th aspect, the sending module, specifically for sending the communication path switching instruction to ProSe functional network element, so that the ProSe functional network element forwards the communication path switching instruction to the UE；Alternatively, directly sending the communication path switching instruction to the UE by application layer messages.

7th aspect, the embodiment of the present invention provide a kind of UE, comprising:

Receiving module, it is indicated for receiving the communication path switching that ProSe application server is sent when determining the UE and being in preset ProSe communication range with the UE opposite end UE for carrying out ProSe communication, the ProSe communication is applied by the ProSe on the UE or the opposite end UE to be initiated in the first communication path, mark and the opposite end UE of the communication path switching instruction including ProSe application Application layer identification；

Resource request module, for being used to carry out the radio resource of the second communication path of the ProSe communication from serving Base Station requests according to communication path switching instruction；

Path switching module for establishing second communication path between the opposite end UE using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path.

In conjunction with the 7th aspect, in the first possible implementation of the 7th aspect, the receiving module, the communication path switching instruction sent specifically for receiving the ProSe application server by ProSe functional network element；Alternatively, receiving the communication path switching instruction that the ProSe application server is directly transmitted by application layer messages.

In conjunction with the first possible implementation of the 7th aspect or the 7th aspect, in second of possible implementation of the 7th aspect, the receiving module, it is also used to receive the bearing modification instruction of grouped data network gateway PDNGW transmission, the bearing resource on first communication path is updated according to bearing modification instruction.

Eighth aspect, the embodiment of the present invention provide a kind of PCRF equipment, comprising:

Receiving module, the communication path switching request sent for receiving ProSe application server when determining that two user equipment (UE)s for carrying out ProSe communication are in preset ProSe communication range, the ProSe communication is applied by the ProSe on any one UE in described two UE to be initiated in the first communication path, and the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE；

Policy update module, the corresponding strategy of Business Stream and charging control PCC strategy for updating the communication of the ProSe on first communication path according to the communication path switching request；

Sending module, for the updated PCC strategy to be sent to grouped data network gateway PDN GW, so that the PDN GW distributes to the bearing resource of first communication path according to the updated PCC policy update.

9th aspect, the embodiment of the present invention provide a kind of UE, comprising:

Determining module, the 2nd UE for determining and carrying out ProSe communication are in preset ProSe communication range, and the ProSe communication is applied by the ProSe on 2nd UE of the first UE or described to be initiated in the first communication path；

Resource request module is led to for being used to carry out the second of the ProSe communication from serving Base Station requests Believe the radio resource in path；

Path switching module for being established second communication path between the 2nd UE using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path；

Sending module, for sending the first switching request of communication path to ProSe application server, first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE, so that the ProSe application server sends the second switching request of communication path to strategy and charging rule functions PCRF equipment, the PCRF equipment is made more to be newly assigned to the bearing resource of first communication path.

In conjunction with the 9th aspect, in the first possible implementation of the 9th aspect, the sending module, specifically for sending first switching request of communication path to ProSe functional network element, so that the ProSe functional network element forwards first switching request of communication path to the ProSe application server；Alternatively, directly sending first switching request of communication path to the ProSe application server by application layer messages.

In conjunction with the 9th aspect, in second of possible implementation of the 9th aspect, the determining module is also used to determine whether on first communication path to carry out the ProSe communication with the 3rd UE；

The sending module, for carrying out the ProSe communication with the 3rd UE on first communication path when the determining module is determined, the request of ProSe bearing modification is sent to equipment of the core network, to discharge the bearing resource with the 2nd UE for distributing to first communication path；The ProSe communication is not carried out with the 3rd UE on first communication path when the determining module is determined, ProSe packet data network PDN connection is sent to equipment of the core network and deactivates request, to discharge all bearing resources for distributing to first communication path.

Tenth aspect, the embodiment of the present invention provide a kind of ProSe application server, comprising:

Receiving module, the first switching request of communication path sent for receiving the first user equipment (UE) when the 2nd UE for determining with carrying out ProSe communication is in preset ProSe communication range, the ProSe communication is applied by the ProSe on 2nd UE of the first UE or described to be initiated in the first communication path, and first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE；

Sending module, for according to first switching request of communication path to strategy and charging rule functions PCRF equipment sends the second switching request of communication path, second switching request of communication path includes the mark of the ProSe application, the application layer identification using layer identification and the 2nd UE of first UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.

In conjunction with the tenth aspect, in the first possible implementation of the tenth aspect, the receiving module, the first switching request of the communication path sent specifically for receiving the first UE by ProSe functional network element；Alternatively, receiving the first switching request of the communication path that the first UE is directly transmitted by application layer messages.

Tenth on the one hand, and the embodiment of the present invention provides a kind of ProSe application server, comprising:

Processor, for determining that two user equipment (UE)s for carrying out ProSe communication are in preset ProSe communication range, the ProSe communication is applied by the ProSe on any of described two UE UE to be initiated in the first communication path；

Transmitter, communication path switching instruction is sent respectively for each UE into described two UE, the communication path switching instruction includes the mark of ProSe application and carries out the application layer identification of the opposite end UE of the ProSe communication with the UE for receiving the communication path switching instruction, so that described two UE, which respectively communicate the ProSe from first communication path, switches to the second communication path；Communication path switching request is sent to strategy and charging rule functions PCRF equipment, the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.

On the one hand in conjunction with the tenth, in the first possible implementation of the tenth one side, first communication path is the path evolution block core net EPC, and second communication path is PC5 interface direct communication path.

In conjunction with the first possible implementation of the tenth one side or the tenth one side, in second of possible implementation of the tenth one side, further includes:

Receiver, for receiving the short distance instruction of ProSe functional network element transmission, the short distance instruction is ProSe functional network element transmission after determining that described two UE are in the preset ProSe communication range, and the short distance instruction includes the mark of ProSe application and the application layer identification of described two UE；

The processor is specifically used for determining that described two UE are in the preset ProSe communication range according to short distance instruction.

In conjunction with the tenth on the one hand, the tenth one side the first to any possible realization side in second Formula, in the third possible implementation of the tenth one side, the transmitter is specifically used for sending the communication path switching instruction to ProSe functional network element, so that the ProSe functional network element forwards the communication path switching instruction to the UE；Alternatively, directly sending the communication path switching instruction to the UE by application layer messages.

12nd aspect, the embodiment of the present invention provide a kind of UE, comprising:

Receiver, it is indicated for receiving the communication path switching that ProSe application server is sent when determining the UE and being in preset ProSe communication range with the UE opposite end UE for carrying out ProSe communication, the ProSe communication is applied by the ProSe on the UE or the opposite end UE to be initiated in the first communication path, and the communication path switching instruction includes the mark of ProSe application and the application layer identification of the opposite end UE；

Processor, for being used to carry out the radio resource of the second communication path of the ProSe communication from serving Base Station requests according to communication path switching instruction；Second communication path between the opposite end UE is established using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path.

In conjunction with the 12nd aspect, in the first possible implementation of the 12nd aspect, the receiver, the communication path switching instruction sent specifically for receiving the ProSe application server by ProSe functional network element；Alternatively, receiving the communication path switching instruction that the ProSe application server is directly transmitted by application layer messages.

In conjunction with the 12nd aspect, in second of possible implementation of the 12nd aspect, the receiver is also used to receive the bearing modification instruction of grouped data network gateway PDN GW transmission, the bearing resource on first communication path is updated according to bearing modification instruction.

13rd aspect, the embodiment of the present invention provide a kind of PCRF equipment, comprising:

Receiver, the communication path switching request sent for receiving ProSe application server when determining that two user equipment (UE)s for carrying out ProSe communication are in preset ProSe communication range, the ProSe communication is applied by the ProSe on any one UE in described two UE to be initiated in the first communication path, and the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE；

Processor, the corresponding strategy of Business Stream and charging control PCC strategy for updating the communication of the ProSe on first communication path according to the communication path switching request；

Transmitter, for the updated PCC strategy to be sent to grouped data network gateway PDN GW, so that the PDN GW distributes to the bearing resource of first communication path according to the updated PCC policy update.

Fourteenth aspect, the embodiment of the present invention provide a kind of UE, comprising:

Processor, the 2nd UE for determining and carrying out ProSe communication are in preset ProSe communication range, and the ProSe communication is applied by the ProSe on 2nd UE of the first UE or described to be initiated in the first communication path；It is used to carry out the radio resource of the second communication path of the ProSe communication from serving Base Station requests；Second communication path between the 2nd UE is established using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path；

Transmitter, for sending the first switching request of communication path to ProSe application server, first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE, so that the ProSe application server sends the second switching request of communication path to strategy and charging rule functions PCRF equipment, the PCRF equipment is made more to be newly assigned to the bearing resource of first communication path.

In conjunction with fourteenth aspect, in the first possible implementation of fourteenth aspect, the transmitter, specifically for sending first switching request of communication path to ProSe functional network element, so that the ProSe functional network element forwards first switching request of communication path to the ProSe application server；Alternatively, directly sending first switching request of communication path to the ProSe application server by application layer messages.

In conjunction with fourteenth aspect, in second of possible implementation of fourteenth aspect, the processor is also used to determine whether on first communication path to carry out the ProSe communication with the 3rd UE；

The transmitter, for carrying out the ProSe communication with the 3rd UE on first communication path when the processor is determined, the request of ProSe bearing modification is sent to equipment of the core network, to discharge the bearing resource with the 2nd UE for distributing to first communication path；The ProSe communication is not carried out with the 3rd UE on first communication path when the processor is determined, ProSe packet data network PDN connection is sent to equipment of the core network and deactivates request, to discharge all bearing resources for distributing to first communication path.

15th aspect, the embodiment of the present invention provide a kind of ProSe application server, comprising:

Receiver, the first switching request of communication path sent for receiving the first user equipment (UE) when the 2nd UE for determining with carrying out ProSe communication is in preset ProSe communication range, the ProSe Communication is applied by the ProSe on 2nd UE of the first UE or described and is initiated in the first communication path, and first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE；

Transmitter, for sending the second switching request of communication path to strategy and charging rule functions PCRF equipment according to first switching request of communication path, second switching request of communication path includes the mark of the ProSe application, the application layer identification using layer identification and the 2nd UE of first UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.

In conjunction with the 15th aspect, in the first possible implementation of the 15th aspect, the receiver, the first switching request of the communication path sent specifically for receiving the first UE by ProSe functional network element；Alternatively, receiving the first switching request of the communication path that the first UE is directly transmitted by application layer messages.

16th aspect, the embodiment of the present invention provide a kind of communication system, comprising: short distance business ProSe application server, user equipment (UE), strategy and charging rule functions PCRF equipment and equipment of the core network；Wherein, the ProSe application server using the 6th aspect, the 6th aspect the first to the third, the tenth aspect, the tenth aspect the first in ProSe application server described in any possible implementation；The UE is using the first in terms of the first in terms of the 7th aspect, the 7th to second, the 9th aspect, the 9th to UE described in any possible implementation in second；The PCRF equipment is using PCRF equipment described in the possible implementation of eighth aspect.

17th aspect, the embodiment of the present invention provide a kind of communication system, comprising: short distance business ProSe application server, user equipment (UE), strategy and charging rule functions PCRF equipment and equipment of the core network；Wherein, the ProSe application server using the tenth on the one hand, the tenth one side the first to the third, the 15th aspect, the 15th aspect the first in ProSe application server described in any possible implementation；The UE using the 12nd aspect, the 12nd aspect the first to second, fourteenth aspect, fourteenth aspect the first to UE described in any possible implementation in second；The PCRF equipment is using PCRF equipment described in the 13rd possible implementation of aspect.

The communication path switch method of short distance business of the embodiment of the present invention, apparatus and system, by when determining that two UE for carrying out ProSe communication are in preset ProSe communication range, indicate UE by the first current communication path switch between UE can direct communication the second communication path, and more it is newly assigned to the bearing resource of first communication path, in the case where not needing UE participation, realize by network side The switching of communication path between initiation UE, while discharging and promoting the utilization rate of resource while guaranteeing ProSe continuity in the bearing resource that 3GPP network side is the distribution of the first communication path, solve the problems, such as the wasting of resources.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, a brief description of the drawings needed to be used in the description of the embodiments or the prior art will be given below, apparently, drawings in the following description are some embodiments of the invention, for those of ordinary skill in the art, without any creative labor, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the communication system architecture under non-roaming scene；

Fig. 2 is the communication system architecture under non-roaming across a network scene；

Fig. 3 is the communication system architecture under roaming scence；

Fig. 4 is the flow chart of one embodiment of the communication path switch method of ProSe of the present invention；

Fig. 5 is the flow chart of another embodiment of the communication path switch method of ProSe of the present invention；

Fig. 6 is the flow chart of another embodiment of the communication path switch method of ProSe of the present invention；

Fig. 7 is the flow chart of the 4th embodiment of the communication path switch method of ProSe of the present invention；

Fig. 8 is the flow chart of the 5th embodiment of the communication path switch method of ProSe of the present invention；

Fig. 9 is the flow chart of the 6th embodiment of the communication path switch method of ProSe of the present invention；

Figure 10 is the flow chart of the 7th embodiment of the communication path switch method of ProSe of the present invention；

Figure 11 is the flow chart of the 8th embodiment of the communication path switch method of ProSe of the present invention；

Figure 12 is the flow chart of the 9th embodiment of the communication path switch method of ProSe of the present invention；

Figure 13 is the structural schematic diagram of one embodiment of ProSe application server of the present invention；

Figure 14 is the structural schematic diagram of another embodiment of ProSe application server of the present invention；

Figure 15 is the structural schematic diagram of one embodiment of UE of the present invention；

Figure 16 is the structural schematic diagram of one embodiment of PCRF equipment of the present invention；

Figure 17 is the structural schematic diagram of another embodiment of UE of the present invention；

Figure 18 is the structural schematic diagram of another embodiment of ProSe application server of the present invention；

Figure 19 is the structural schematic diagram of the 4th embodiment of ProSe application server of the present invention；

Figure 20 is the structural schematic diagram of the 5th embodiment of ProSe application server of the present invention；

Figure 21 is the structural schematic diagram of another embodiment of UE of the present invention；

Figure 22 is the structural schematic diagram of another embodiment of PCRF equipment of the present invention；

Figure 23 is the structural schematic diagram of the 4th embodiment of UE of the present invention；

Figure 24 is the structural schematic diagram of the 6th embodiment of ProSe application server of the present invention；

Figure 25 is the structural schematic diagram of one embodiment of communication system of the present invention.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, following will be combined with the drawings in the embodiments of the present invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, shall fall within the protection scope of the present invention.

The UE that the embodiment of the present invention refers to may be people to people (Human to Human, referred to as: H2H) UE, it is also possible to machine to machine (Machine to Machine, referred to as: M2M) UE or other types of UE.Wherein, M2M UE can claim machine type communication device (Machine Type Communications Device, referred to as: MTC Device).For convenience of description, two UE for ProSe communication being carried out in the embodiment of the present invention are referred to as UE A and UE B.

The home network and visited network that the embodiment of the present invention refers to, non-roaming state and roaming state, are for UE.The home network of UE is IMSI International Mobile Subscriber Identity (the International Mobile Subscriber Identity of UE, public land mobile network (the Public Land Mobile Network for including in referred to as: IMSI), referred to as: PLMN) identity (Identity, the network referred to as: ID) identified, if UE is in its home network, then the UE is in non-roaming state, if UE is not in its home network, which is in roaming state.The visited network of UE is the network accessed when UE is in roaming state.

The path EPC for the ProSe communication that the embodiment of the present invention refers to, refer to: ProSe communication is initiated in the ProSe application carried out on any one UE in two UE of ProSe communication, two UE establish ProSe PDN connection in the 3GPP system currently registered, it realizes the communication between UE and ProSe application server, then realizes the ProSe communication between two UE by ProSe application server.The PC5 interface direct communication path for the ProSe communication that the embodiment of the present invention refers to, refer to: two UE for carrying out ProSe communication realize that the direct ProSe between two UE is communicated by establishing the connection of PC5 interface, the communication path needs not move through any equipment of the core network, ProSe functional network element and ProSe application server The communication path is usually that could establish when two UE for carrying out ProSe communication are in preset ProSe communication range, PC5 interface direct communication path is also referred to as Universal Mobile Communication System land wireless access (Evolved Universal Mobile Telecommunications System Territorial Radio Access Network, referred to as: E-UTRA) communication path of ProSe evolution.

The communication path switch method of ProSe of the invention can be adapted for three typical scenes, different scenes corresponds to different communication system architectures, Fig. 1 is the communication system architecture under non-roaming scene, Fig. 2 is the communication system architecture under non-roaming across a network scene, and Fig. 3 is the communication system architecture under roaming scence.

As shown in Figure 1, under non-roaming scene, UE A and the UE B for carrying out ProSe communication are resided in the same home network, it includes E-UTRAN, equipment of the core network (such as mobile management entity (Mobility Management Entity, referred to as: MME), gateway (Serving Gateway, referred to as: S-GW), PDN-GW), ProSe application server, ProSe functional network element, home signature user server (Home Subscriber Server, referred to as: HSS) and Service Location Protocol (Service Location Protocol, referred to as: SLP) server.UE A and UE B can carry out direct communication by the ProSe functional network element of PC3 interface and its home network.It should be noted that PC3 interface is the counterpart interface between UE and ProSe functional network element, the communication on PC3 interface is realized by the user face of EPS.The evolved node B (Evolved Node B, referred to as: eNodeB) in EPS is omitted in Fig. 1, and has also carried out identical omission in following Fig. 2 and Fig. 3.

As shown in Figure 2, under non-roaming across a network scene, the UE for carrying out ProSe communication is resided in its respective home network, ProSe functional network element in heterogeneous networks is known as local (Local) ProSe functional network element, for example, the ProSe functional network element in PLMN B is exactly local ProSe functional network element for UE A.Under the scene, UE needs to be communicated with local ProSe functional network element to obtain the authorization for carrying out ProSe communication, the communication is realized by the ownership ProSe functional network element in the home network where UE, such as, UE A first carries out direct communication with the ownership ProSe functional network element in PLMN A, then the communication of the local ProSe functional network element in UE A and PLMN B is realized by the ownership ProSe functional network element in PLMN A.The communication interface between ProSe functional network element in ProSe functional network element in PLMN A and PLMN B is PC6.

As shown in Figure 3, under roaming scence, the UE for carrying out ProSe communication is resided in the visited network of roaming place, ProSe functional network element in visited network is known as visiting (Visited) ProSe functional network element, such as, UE A is roamed into PLMN C, and the ProSe functional network element in PLMN C carrys out UE A Say to be exactly to visit ProSe functional network element.UE A needs to be communicated with the visit ProSe functional network element in PLMN C to obtain the authorization for carrying out ProSe communication, the communication is realized by the ownership ProSe functional network element in the home network where UE, such as, UE A first carries out direct communication with the ownership ProSe functional network element in PLMN A, then passes through the communication for belonging to the visit ProSe functional network element that ProSe functional network element is realized in UE A and PLMN C in PLMN A.The communication interface between visit ProSe functional network element in ownership ProSe functional network element in PLMN A and PLMN C is PC7.

Fig. 4 is the flow chart of one embodiment of the communication path switch method of ProSe of the present invention, as shown in figure 4, the method for the present embodiment may include:

Step 101 determines that two UE for carrying out ProSe communication are in preset ProSe communication range, and the ProSe communication is applied by the ProSe on any one UE in described two UE to be initiated in the first communication path；

The first communication path can be the path EPC in the present embodiment, second communication path can be PC5 interface direct communication path, the PC5 interface direct communication path can be interface specified in Institute of Electrical and Electric Engineers (Institute of Electrical and Electronics Engineers, referred to as: IEEE) 802 serial protocols.The executing subject of the present embodiment can be the ProSe application server in communication system, and management and the business function of application layer are realized for ProSe communication.Carry out two UE of ProSe communication, such as UE A and UE B, when UE A and UE B are not in preset ProSe communication range, the ProSe communication that ProSe application on UE A or UE B is initiated can only be realized by the first communication path, after ProSe communication is initiated in ProSe application, UE A and UE B establish ProSe PDN with 3GPP equipment of the core network respectively and connect, and realize the ProSe communication on the first communication path.Here ProSe application can be mounted in the application program (Application on UE A and UE B, referred to as: APP), it is also possible to the function itself having on UE A and UE B, the ProSe communication between UE A and UE B can be initiated by ProSe application.The preset ProSe communication range can be preconfigured by network side equipment, for example a region for being similar to cellular cell meets the condition of communication path of the present invention switching when two UE are in the region simultaneously.In the present embodiment, ProSe application server can determine that two UE for carrying out ProSe communication are in preset ProSe communication range according to existing position location technology or by ProSe functional network element, and whether ProSe functional network element finds UE A and UE B in preset ProSe communication range by executing the discovery process based on EPC network.

Step 102, each UE into described two UE send communication path switching instruction respectively, and the communication path switching instruction includes the mark of ProSe application and switches with the communication path is received The UE of instruction carries out the application layer identification of the opposite end UE of the ProSe communication, so that described two UE, which respectively communicate the ProSe from first communication path, switches to the second communication path；

ProSe application server is after determining that UE A and UE B are in preset ProSe communication range, indicate that the two UE meet the condition that direct communication is realized by the second communication path, therefore communication path switching instruction is sent to UE A and UE B respectively, the communication path switching instruction for being sent to UE A includes the mark of ProSe application and the application layer identification of UE B, and the communication path switching instruction for being sent to UE B includes the mark of ProSe application and the application layer identification of UE A.UE is an identity that ProSe application server distributes to UE using layer identification, for going out the UE in application layer unique identification.UE A and UE B can switch instruction according to communication path and ProSe communication switched to the second communication path from the first communication path.

Step 103 sends communication path switching request to PCRF equipment, the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.

ProSe application server can by strategy with charging rule functions (Policy and Charging Rules Function, referred to as: PCRF) equipment sends communication path switching request, the corresponding strategy of the Business Stream that the mark for making PCRF equipment update ProSe application based on the feature that ProSe is communicated is identified and charging control (Policy and Charging Control, referred to as: PCC) tactful (Policy).

The present embodiment, by when determining that two UE for carrying out ProSe communication are in preset ProSe communication range, indicate UE by the first current communication path switch between UE can direct communication the second communication path, and more it is newly assigned to the bearing resource of first communication path, in the case where not needing UE participation, realize the switching that communication path between UE is initiated by network side, release simultaneously is in the bearing resource that 3GPP network side is the distribution of the first communication path, while guaranteeing ProSe continuity, the utilization rate for promoting resource, solves the problems, such as the wasting of resources.

Further, it can also include: the short distance instruction for receiving ProSe functional network element and sending before above-mentioned steps 101, the short distance instruction is ProSe functional network element transmission after determining that described two UE are in the preset ProSe communication range, and the short distance instruction includes the mark of ProSe application and the application layer identification of described two UE；Step 101 concrete implementation method, which may is that, determines that described two UE are in the preset ProSe communication range according to short distance instruction.

Further, 102 concrete implementation method of above-mentioned steps may is that sends out to ProSe functional network element The communication path switching instruction is sent, so that the ProSe functional network element forwards the communication path switching instruction to the UE；Alternatively, directly sending the communication path switching instruction to the UE by application layer messages.

Specifically, communication path switching instruction is first sent to ProSe functional network element by ProSe application server, carry the mark of ProSe application, the application layer identification of UE A and UE B, ProSe functional network element is after receiving communication path switching instruction, know that the ProSe between UE A and UE B communicates needs and is switched to the second communication path from the first communication path, then it sends communication path switching and is indicated to UE A, carry the mark of ProSe application and the application layer identification of UE B, it should be noted that, ProSe functional network element sends communication path switching and is indicated to UE A, existing ProSe signaling message can be reused, such as: closely warning (Proximity Alert) message, and increase within the message One new instruction information is used to refer to the switching that UE carries out ProSe communication path, can also define a new ProSe signaling message, which is not limited by the present invention.Optionally, communication path switching instruction directly can also be sent to UE A by application layer messages by ProSe application server.Likewise, communication path switching instruction can also be sent to UE B by the above process by ProSe application server, details are not described herein again.

Fig. 5 is the flow chart of another embodiment of the communication path switch method of ProSe of the present invention, as shown in figure 5, the method for the present embodiment may include:

Step 201, UE receive the communication path switching that ProSe application server is sent when determining the UE and being in preset ProSe communication range with the UE opposite end UE for carrying out ProSe communication and indicate, the ProSe communication is applied by the ProSe on the UE or the opposite end UE to be initiated in the first communication path, and the communication path switching instruction includes the mark of ProSe application and the application layer identification of the opposite end UE；

The first communication path can be the path EPC in the present embodiment, and the second communication path can be PC5 interface direct communication path.The executing subject of the present embodiment can be one of UE that two UE of ProSe communication are carried out in communication system, such as UE A.Here it is illustrated by taking UE A as an example, equally can also be in another UE for two UE for carrying out ProSe communication as the embodiment of the side UE, such as executed on UE B.The present embodiment is corresponding with embodiment of the method shown in Fig. 4, and UE A receives the communication path that ProSe application server is sent and switches instruction, and ProSe application server has determined that UE A and UE B are in preset ProSe communication range at this time.The communication path switching instruction for being sent to UE A includes the mark of ProSe application and the application layer identification of UE B.

Step 202, the UE are according to communication path switching instruction from serving Base Station requests for carrying out The radio resource of second communication path of the ProSe communication；

UE A is used for the radio resource of the second communication path to be resident serving Base Station requests after receiving communication path switching instruction, which includes the resource of frequency range of eating dishes without rice or wine.According to the request of UE A, radio resource needed for serving BS can establish the second communication path to UE A distribution according to resource allocation strategy.

Step 203, the UE establish second communication path between the UE of the Correspondent Node using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path.

The radio resource for the second communication path that UE A is distributed using serving BS establishes the second communication path between UE B, UE A and UE B can directly carry out ProSe communication by the second communication path, the two can continue to use Internet protocol (the Internet Protocol obtained in the first communication path from 3GPP network side, referred to as: the IP) direct communication of the second communication path of address progress, IP address negotiation can also be re-started, the direct communication of the second communication path is carried out using new IP address.

Further, 201 concrete implementation method of above-mentioned steps, which may is that, receives the communication path switching instruction that the ProSe application server is sent by ProSe functional network element；Alternatively, receiving the communication path switching instruction that the ProSe application server is directly transmitted by application layer messages.

Further, the method of the present embodiment can also include: the bearing modification instruction for receiving PDN GW and sending, the bearing resource on first communication path is updated according to bearing modification instruction, it is bearing resource needed for the path EPC of the ProSe connection setup in 3GPP network side including updating service quality (Quality of Service, referred to as: the QoS) parameter of EPS carrying and carrying the resources such as packet filter to discharge.

Fig. 6 is the flow chart of another embodiment of the communication path switch method of ProSe of the present invention, as shown in fig. 6, the method for the present embodiment may include:

Step 301, reception ProSe application server are in determining two UE for carrying out ProSe communication The communication path switching request sent when in preset ProSe communication range, the ProSe communication is applied by the ProSe on any one UE in described two UE to be initiated in the first communication path, and the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE；

The first communication path can be the path EPC in the present embodiment, and the second communication path can be PC5 interface direct communication path.The executing subject of the present embodiment can be the PCRF equipment in communication system, and the present embodiment is corresponding with embodiment of the method shown in Fig. 4, Fig. 5.PCRF equipment receives the communication path switching request that ProSe application server is sent.

The corresponding PCC strategy of step 302, the Business Stream that the communication of the ProSe on first communication path is updated according to the communication path switching request；

The corresponding PCC strategy of the Business Stream that the mark that PCRF equipment updates the ProSe application on the first communication path based on the feature that ProSe is communicated is identified.

The updated PCC strategy is sent to PDN GW by step 303, so that the PDNGW distributes to the bearing resource of first communication path according to the updated PCC policy update.

PCRF equipment is by initiating IP connected reference network (IP Connectivity Access Network, referred to as: IP-CAN) updated PCC strategy is sent to PDN GW by session modification process, PDNGW is according to PCC strategy, initiate EPS bearing modification process, including updating the qos parameter of EPS carrying and carrying the resources such as packet filter, to update in the bearing resource that 3GPP network side is the distribution of the first communication path.

Fig. 7 is the flow chart of the 4th embodiment of the communication path switch method of ProSe of the present invention, as shown in fig. 7, the method for the present embodiment may include:

Step 401, UE A and UE B are connect by establishing ProSe PDN with equipment of the core network, carry out the ProSe communication on the path EPC, and the ProSe communication is applied by the ProSe on UE A or UE B to be initiated in the path EPC；

UE A establishes ProSe PDN with 3GPP equipment of the core network respectively with UE B and connect, and realizes and is communicated by the ProSe in the path EPC.Because current UE A and UE B, not in preset ProSe communication range, the ProSe communication that ProSe application is initiated can only be realized by the path EPC.Since ProSe communication is that the EPS user face defined by 3GPP is realized, then UE A needs to initiate ProSe PDN establishment of connection process respectively with UE B and connect to establish ProSe PDN, transmits the Business Stream that the ProSe between UE A and UE B is communicated by the ProSe PDN connection.In ProSe PDN establishment of connection process, PDN GW can give UE A IP address corresponding with UE B distribution.

Step 402, ProSe functional network element determine that UE A and UE B are in preset ProSe communication range by executing EPC network discovery process；

Whether ProSe functional network element finds UE A and UE B in preset ProSe communication range by executing EPC network discovery process.The step is the prior art, and details are not described herein for specific implementation details.

Step 403, ProSe functional network element send to ProSe application server and closely indicate, the short distance instruction includes the mark of ProSe application, the application layer identification of UE A and UE B；

ProSe functional network element, which is sent, is closely indicated to ProSe application server, existing ProSe signaling message can be reused, such as closely alert (Proximity Alert) message, increase a new instruction information within the message to be used to refer to UE A and UE B and be in preset ProSe communication range, a new ProSe signaling message can also be defined, which is not limited by the present invention.It should be noted that ProSe application server is to be known in advance currently to have which UE carrying out ProSe communication.

Step 404, ProSe application server indicate to determine that UE A and UE B are in the preset ProSe communication range according to the short distance；

The step is similar with above-mentioned steps 101, and details are not described herein again.

Step 405a, ProSe application server sends communication path switching instruction to UE A by ProSe functional network element, and the communication path switching instruction includes the mark of ProSe application and the application layer identification of UE B；

Step 405b, ProSe application server directly sends communication path switching instruction to UE A by application layer messages, and the communication path switching instruction includes the mark of ProSe application and the application layer identification of UE B；

Step 405a and step 405b can be alternative, are also possible to the two and are all performed, if the two is all performed, the side UE need to only respond alternative one.

Step 406, UE A are used to carry out the radio resource of the PC5 interface direct communication path of the ProSe communication according to communication path switching instruction from serving Base Station requests；

The step is similar with above-mentioned steps 202, and details are not described herein again.

Step 407, UE A establish the PC5 interface direct communication path between UE B using the radio resource, and the ProSe is communicated from the path EPC and switches to the PC5 interface direct communication path；

The step is similar with above-mentioned steps 203, and details are not described herein again.

Step 408, ProSe application server send communication path switching request to PCRF equipment, and the communication path switching request includes mark, the application layer identification of UE A and UE B of the ProSe application；

The step is similar with above-mentioned steps 103, and details are not described herein again.

The corresponding PCC strategy of Business Stream that step 409, PCRF equipment update the communication of the ProSe on the path EPC according to the communication path switching request；

The step is similar with above-mentioned steps 302, and details are not described herein again.

The updated PCC strategy is sent to PDN GW by step 410, PCRF equipment；

Step 411, PDN GW are according to the updated PCC strategy modification EPS carrying and qos parameter, to be more newly assigned to the bearing resource in the path EPC.

Step step 410- step 411 is similar with above-mentioned steps 303, and details are not described herein again.

Step 405~step 411 is also required to execute in UE B parallel, is not shown in the figure.ProSe functional network element, PCRF equipment, PDN GW if UE B service and the difference for UE A service are then to execute above-mentioned similar step for the ProSe functional network element, PCRF equipment, PDN GW of UE B service.In addition, step 405~step 407 and step 408~step 411 execution sequence are in no particular order, can also execute parallel.

Fig. 8 is the flow chart of the 5th embodiment of the communication path switch method of ProSe of the present invention, as shown in figure 8, the method for the present embodiment may include:

Step 501, UE A and UE B are connect by establishing ProSe PDN with equipment of the core network, carry out the ProSe communication on the path EPC, and the ProSe communication is applied by ProSe on UE A or UE B to be initiated in the path EPC；

Step 502, ProSe application server determine that UE A and UE B are in preset ProSe communication range according to position location technology；

Position location technology for example can be the location technology based on cellular cell, location technology based on global positioning system (Global Position System, referred to as: GPS) etc..

Step 503a, ProSe application server sends communication path switching instruction to UE A by ProSe functional network element, and the communication path switching instruction includes the mark of ProSe application and the application layer identification of UE B；

Step 503b, ProSe application server directly sends communication path switching instruction to UE A by application layer messages, and the communication path switching instruction includes the mark of ProSe application and the application layer identification of UE B；

Step 503a and step 503b can be alternative, are also possible to the two and are all performed, if the two is all performed, the side UE need to only respond alternative one.

Step 504, UE A are used to carry out the radio resource of the PC5 interface direct communication path of the ProSe communication according to communication path switching instruction from serving Base Station requests；

Step 505, UE A establish the PC5 interface direct communication path between UE B using the radio resource, and the ProSe is communicated from the path EPC and switches to the PC5 interface direct communication path；

Step 506, ProSe application server send communication path switching request to PCRF equipment, and the communication path switching request includes mark, the application layer identification of UE A and UE B of the ProSe application；

The corresponding PCC strategy of Business Stream that step 507, PCRF equipment update the communication of the ProSe on the path EPC according to the communication path switching request；

The updated PCC strategy is sent to PDN GW by step 508, PCRF equipment；

Step 509, PDN GW are according to the updated PCC strategy modification EPS carrying and qos parameter, to be more newly assigned to the bearing resource in the path EPC.

Step step 508- step 509 is similar with above-mentioned steps 303, and details are not described herein again.

Step 503~step 509 is also required to execute in UE B parallel, is not shown in the figure.ProSe functional network element, PCRF equipment, PDN GW if UE B service and the difference for UE A service are then Above-mentioned similar step is executed for the ProSe functional network element, PCRF equipment, PDN GW of UE B service.In addition, step 503~step 505 and step 506~step 509 execution sequence are in no particular order, can also execute parallel.

Fig. 9 is the flow chart of the 6th embodiment of the communication path switch method of ProSe of the present invention, as shown in figure 9, the method for the present embodiment may include:

Step 601, the first UE are determined to be in preset ProSe communication range with the 2nd UE for carrying out ProSe communication, and the ProSe communication is applied by the ProSe on 2nd UE of the first UE or described to be initiated in the first communication path；

The first communication path can be the path EPC in the present embodiment, and the second communication path can be PC5 interface direct communication path.The executing subject of the present embodiment can be one of UE that two UE of ProSe communication are carried out in communication system, such as UE A.UE A has found UE B in preset ProSe communication range by executing directly discovery (DirectDiscovery) process, directly finds that process is the prior art, is not repeating herein.

Step 602, the first UE are used to carry out the radio resource of the second communication path of the ProSe communication from serving Base Station requests；

The radio resource includes the resource of frequency range of eating dishes without rice or wine.According to the request of UE A, radio resource needed for serving BS can establish the second communication path to UE A distribution according to resource allocation strategy.

Step 603, the first UE establish second communication path between the 2nd UE using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path；

Step 604, the first UE send the first switching request of communication path to ProSe application server, first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE, so that the ProSe application server sends the second switching request of communication path to strategy and charging rule functions PCRF equipment, the PCRF equipment is made more to be newly assigned to the bearing resource of first communication path.

The present embodiment, a UE in two UE of ProSe communication is carried out when determining that described two UE are in preset ProSe communication range, by the first current communication path switch between UE can direct communication the second communication path, and request PCRF equipment initiation bearing resource to update by sending the first switching request of communication path triggering ProSe application server, it realizes by communication path between UE initiation UE Switching, while discharging and promoting the utilization rate of resource while guaranteeing ProSe continuity in the bearing resource that 3GPP network side is the distribution of the first communication path, solve the problems, such as the wasting of resources.

Further, 602 concrete implementation method of above-mentioned steps, which may is that ProSe functional network element, sends first switching request of communication path, so that the ProSe functional network element forwards first switching request of communication path to the ProSe application server；Alternatively, directly sending first switching request of communication path to the ProSe application server by application layer messages.

Further, it can also comprise determining whether to carry out the ProSe communication with the 3rd UE on first communication path after above-mentioned steps 603；If it is determined that carrying out the ProSe communication with the 3rd UE on first communication path, then the request of ProSe bearing modification is sent to equipment of the core network, to discharge the bearing resource with the 2nd UE for distributing to first communication path；If it is determined that not carrying out the ProSe communication with other 3rd UE on first communication path, ProSe packet data network PDN connection then, which is sent, to equipment of the core network deactivates request, to discharge all bearing resources for distributing to first communication path, it should be noted that the 3rd UE is any one in other all UE other than participating in two UE of ProSe communication (i.e. UE A and UE B) here.

Figure 10 is the flow chart of the 7th embodiment of the communication path switch method of ProSe of the present invention, and as shown in Figure 10, the method for the present embodiment may include:

Step 701 receives the first switching request of communication path that the first UE is sent when the 2nd UE for determining with carrying out ProSe communication is in preset ProSe communication range, the ProSe communication is applied by the ProSe on 2nd UE of the first UE or described to be initiated in the first communication path, and first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE；

The first communication path can be the path EPC in the present embodiment, and the second communication path can be PC5 interface direct communication path.The executing subject of the present embodiment can be the ProSe application server in communication system.The present embodiment is corresponding with embodiment of the method shown in Fig. 9, and the present embodiment is to be determined to be in preset ProSe communication range with the 2nd UE for carrying out ProSe communication by the first UE, and the first UE initiates the first switching request of communication path to ProSe application server at this time.

Step 702 sends the second switching request of communication path to PCRF equipment according to first switching request of communication path, second switching request of communication path includes the mark of the ProSe application, the application layer identification using layer identification and the 2nd UE of first UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.

The present embodiment carries out the first UE in two UE of ProSe communication and is determining at described two UE When in preset ProSe communication range, by the first current communication path switch between UE can direct communication the second communication path, and PCRF equipment initiation bearing resource is requested to update by sending the first switching request of communication path triggering ProSe application server, realize the switching that communication path between UE is initiated by UE, release simultaneously is in the bearing resource that 3GPP network side is the distribution of the first communication path, while guaranteeing ProSe continuity, the utilization rate for promoting resource, solves the problems, such as the wasting of resources.

Further, 701 concrete implementation method of above-mentioned steps, which may is that, receives the first switching request of the communication path that the first UE is sent by ProSe functional network element；Alternatively, receiving the first switching request of the communication path that the first UE is directly transmitted by application layer messages.

Figure 11 is the flow chart of the 8th embodiment of the communication path switch method of ProSe of the present invention, and as shown in figure 11, the method for the present embodiment may include:

Step 801, UE A and UE B are connect by establishing ProSe PDN with equipment of the core network, carry out the ProSe communication on the path EPC, and the ProSe communication is applied by the ProSe on UE A or UE B to be initiated in the path EPC；

The step is similar with above-mentioned steps step 401, and details are not described herein again.

Step 802, UE A are determining to be in preset ProSe communication range with UE B；

The step is similar with above-mentioned steps 601, and details are not described herein again.

Step 803, UE A are used to carry out the radio resource of the PC5 interface direct communication path of the ProSe communication from serving Base Station requests；

The step is similar with above-mentioned steps 602, and details are not described herein again.

Step 804, UE A establish the PC5 interface direct communication path between UE B using the radio resource, and the ProSe is communicated from the path EPC and switches to the PC5 interface direct communication path；

The step is similar with above-mentioned steps 603, and details are not described herein again.

Step 805a, UE A sends the first switching request of communication path to ProSe application server by ProSe functional network element, and first switching request of communication path includes the mark of the ProSe application and the application layer identification of UEB；

Step 805b, UE A directly sends the first switching request of communication path to ProSe application server by application layer messages, and first switching request of communication path includes the mark of the ProSe application and the application layer identification of UEB；

Step 805a and step 805b can be alternative, are also possible to the two and are all performed, if the two It is all performed, then ProSe application server need to only respond alternative one.After UE-A determination is in preset ProSe communication range with UE B, determines the switching request for initiating ProSe communication path, that is, request network side to communicate the ProSe between current UE A and UE B, be switched to PC5 interface direct communication path from the path EPC.The first switching request of communication path can be sent to ProSe application server by two kinds of approach by UE A.UE A can reuse existing ProSe signaling message, increase the switching that a new instruction information is used to that network side is requested to initiate ProSe communication path within the message, can also define a new ProSe signaling message, which is not limited by the present invention.

Step 806, ProSe application server send the second switching request of communication path to PCRF equipment according to first switching request of communication path, second switching request of communication path includes the mark of the ProSe application, the application layer identification using layer identification and UE B of UE A；

The corresponding PCC strategy of Business Stream that step 807, PCRF equipment update the communication of the ProSe on the path EPC according to second switching request of communication path；

The updated PCC strategy is sent to PDN GW by step 808, PCRF equipment；

Step 809, PDN GW are according to the updated PCC strategy modification EPS carrying and qos parameter, to be more newly assigned to the bearing resource in the path EPC.

Step step 808- step 809 is similar with above-mentioned steps 303, and details are not described herein again.

Step 803~step 809 is also required to execute in UE B parallel, is not shown in the figure.ProSe functional network element, PCRF equipment, PDN GW if UE B service and the difference for UE A service are then to execute above-mentioned similar step for the ProSe functional network element, PCRF equipment, PDN GW of UE B service.In addition, step 803~step 804 and step 805~step 809 execution sequence are in no particular order, can also execute parallel.

Figure 12 is the flow chart of the 9th embodiment of the communication path switch method of ProSe of the present invention, and as shown in figure 12, the method for the present embodiment may include:

Step 901, UE A and UE B are connect by establishing ProSe PDN with equipment of the core network, carry out the ProSe communication on the path EPC, and the ProSe communication is applied by the ProSe on UE A or UE B to be initiated in the path EPC；

Step 902, UE A are determining to be in preset ProSe communication range with UE B；

Step 903, UE A are used to carry out the radio resource of the PC5 interface direct communication path of the ProSe communication from serving Base Station requests；

Step 904, UE A establish the PC5 interface direct communication path between UE B using the radio resource, and the ProSe is communicated from the path EPC and switches to the PC5 interface direct communication path.

Step 905, UE A determine whether to carry out the ProSe communication with UE C on the path EPC；

If step 906, UE A, which are determined, carries out the ProSe communication with UE C on the path EPC, the request of ProSe bearing modification is sent to equipment of the core network, to discharge the bearing resource with UE B for distributing to the path EPC；

If current UE A carries out ProSe communication by the path EPC with UE C, UE A initiates ProSe bearing modification process, including updating the qos parameter of EPS carrying and carrying the resources such as packet filter, bearing resource needed for the path EPC to discharge the ProSe connection setup in 3GPP network side between UE A and UE B, the bearing resource are the bearing resources for the Business Stream that the mark of the ProSe application is identified.

If step 907, UE A, which are determined, does not carry out the ProSe communication with UE C on the path EPC, ProSe PDN connection is sent to equipment of the core network and deactivates request, to discharge all bearing resources for distributing to the path EPC.

If current UE A carries out ProSe communication by the path EPC not with UE C namely UE B is the UE that the last one carries out ProSe communication with UE A by the path EPC, UE A initiates ProSe PDN connection and deactivates process.The ProSe PDN connection is exactly to communicate the PDN connection established by ProSe in s901, and the bearing resource that the side 3GPP is the EPC path allocation can farthest be discharged by deleting entire ProSe PDN connection.

Step 906 and step 907 are optional steps.Step 903~step 907 is also required to execute in UE B parallel, is not shown in the figure.ProSe functional network element, PCRF equipment, PDN GW if UE B service and the difference for UE A service are then to execute above-mentioned similar step for the ProSe functional network element, PCRF equipment, PDN GW of UE B service.

Figure 13 is the structural schematic diagram of one embodiment of ProSe application server of the present invention, such as Figure 13 It is shown, the device of the present embodiment may include: determining module 11 and sending module 12, wherein, determining module, for determining that two user equipment (UE)s for carrying out ProSe communication are in preset ProSe communication range, the ProSe communication is applied by the ProSe on any one UE in described two UE to be initiated in the first communication path；

The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 4, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Further, first communication path is the path evolution block core net EPC, and second communication path is PC5 interface direct communication path.

Figure 14 is the structural schematic diagram of another embodiment of ProSe application server of the present invention, as shown in figure 14, the device of the present embodiment is on the basis of Figure 13 shown device structure, further, it can also include: receiving module 13, the receiving module 13 is used to receive the short distance instruction of ProSe functional network element transmission, the short distance instruction is ProSe functional network element transmission after determining that described two UE are in the preset ProSe communication range, and the short distance instruction includes the mark of ProSe application and the application layer identification of described two UE；The determining module 11 is specifically used for determining that described two UE are in the preset ProSe communication range according to short distance instruction.

Further, the sending module 12 is specifically used for sending the communication path switching instruction to ProSe functional network element, so that the ProSe functional network element forwards the communication path switching instruction to the UE；Alternatively, directly sending the communication path switching instruction to the UE by application layer messages.

Figure 15 is the structural schematic diagram of one embodiment of UE of the present invention, as shown in figure 15, the device of the present embodiment may include: receiving module 21, resource request module 22 and path switching module 23, wherein, receiving module 21, for receive ProSe application server determine the UE and with the UE The communication path switching instruction that the opposite end UE of progress ProSe communication is sent when being in preset ProSe communication range, the ProSe communication is applied by the ProSe on the UE and the opposite end UE to be initiated in the first communication path, and the communication path switching instruction includes the mark of ProSe application and the application layer identification of the opposite end UE；Resource request module 22, for being used to carry out the radio resource of the second communication path of the ProSe communication from serving Base Station requests according to communication path switching instruction；Path switching module 23 for establishing second communication path between the opposite end UE using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path.

The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 5, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Further, the receiving module 21, the communication path switching instruction sent specifically for receiving the ProSe application server by ProSe functional network element；Alternatively, receiving the communication path switching instruction that the ProSe application server is directly transmitted by application layer messages.

Further, the receiving module 21 is also used to receive the bearing modification instruction of grouped data network gateway PDN GW transmission, the bearing resource on first communication path is updated according to bearing modification instruction.

Figure 16 is the structural schematic diagram of one embodiment of PCRF equipment of the present invention, as shown in figure 16, the device of the present embodiment may include: receiving module 31, policy update module 32 and sending module 33, wherein, receiving module 31, the communication path switching request sent for receiving ProSe application server when determining that two user equipment (UE)s for carrying out ProSe communication are in preset ProSe communication range, the ProSe communication is applied by the ProSe on described two UE to be initiated in the first communication path, the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE；Policy update module 32, the corresponding strategy of Business Stream and charging control PCC strategy for updating the communication of the ProSe on first communication path according to the communication path switching request；Sending module 33, for the updated PCC strategy to be sent to grouped data network gateway PDN GW, so that the PDN GW distributes to the bearing resource of first communication path according to the updated PCC policy update.

The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 6, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Figure 17 be UE of the present invention another embodiment structural schematic diagram, as shown in figure 17, the device of the present embodiment may include: determining module 41, resource request module 42, path switching module 43 with And sending module 44, wherein determining module 41, the 2nd UE for determining and carrying out ProSe communication are in preset ProSe communication range, and the ProSe communication is applied by the ProSe on the first UE and the 2nd UE to be initiated in the first communication path；Resource request module 42, for being used to carry out the radio resource of the second communication path of the ProSe communication from serving Base Station requests；Path switching module 43 for being established second communication path between the 2nd UE using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path；Sending module 44, for sending the first switching request of communication path to ProSe application server, first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE, so that the ProSe application server sends the second switching request of communication path to strategy and charging rule functions PCRF equipment, the PCRF equipment is made more to be newly assigned to the bearing resource of first communication path.

The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 9, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Further, the sending module 44 is specifically used for sending first switching request of communication path to ProSe functional network element, so that the ProSe functional network element forwards first switching request of communication path to the ProSe application server；Alternatively, directly sending first switching request of communication path to the ProSe application server by application layer messages.

Further, the determining module 41 is also used to determine whether on first communication path to carry out the ProSe communication with the 3rd UE；The sending module 44, for carrying out the ProSe communication with the 3rd UE on first communication path when the determining module 41 is determined, the request of ProSe bearing modification is sent to equipment of the core network, to discharge the bearing resource with the 2nd UE for distributing to first communication path；The ProSe communication is not carried out with the 3rd UE on first communication path when the determining module 41 is determined, ProSe packet data network PDN connection is sent to equipment of the core network and deactivates request, to discharge all bearing resources for distributing to first communication path.

Figure 18 is the structural schematic diagram of another embodiment of ProSe application server of the present invention, as shown in figure 18, the device of the present embodiment may include: receiving module 51 and sending module 52, wherein, receiving module 51, the first switching request of communication path sent for receiving the first user equipment (UE) when the 2nd UE for determining with carrying out ProSe communication is in preset ProSe communication range, the ProSe communication is applied by the ProSe on the first UE and the 2nd UE to be initiated in the first communication path, first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE；Sending module 52, for according to first switching request of communication path to strategy and charging regulation Function PCRF equipment sends the second switching request of communication path, second switching request of communication path includes the mark of the ProSe application, the application layer identification using layer identification and the 2nd UE of first UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.

The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Figure 10, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Further, the receiving module 51, the first switching request of the communication path sent specifically for receiving the first UE by ProSe functional network element；Alternatively, receiving the first switching request of the communication path that the first UE is directly transmitted by application layer messages.

Figure 19 is the structural schematic diagram of the 4th embodiment of ProSe application server of the present invention, as shown in figure 19, the equipment of the present embodiment may include: processor 61 and transmitter 62, wherein, processor 61, for determining that two user equipment (UE)s for carrying out ProSe communication are in preset ProSe communication range, the ProSe communication is applied by the ProSe on any one UE in described two UE to be initiated in the first communication path；Transmitter 62, communication path switching instruction is sent respectively for each UE into described two UE, the communication path switching instruction includes the mark of ProSe application and carries out the application layer identification of the opposite end UE of the ProSe communication with the UE for receiving the communication path switching instruction, so that described two UE, which communicate the ProSe from first communication path, switches to the second communication path；Communication path switching request is sent to strategy and charging rule functions PCRF equipment, the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.

The equipment of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 4, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Figure 20 is the structural schematic diagram of the 5th embodiment of ProSe application server of the present invention, as shown in figure 20, on the basis of the equipment of the present embodiment device structure shown in Figure 19, further, it can also include: receiver 63, the receiver 63 is used to receive the short distance instruction of ProSe functional network element transmission, the short distance instruction is ProSe functional network element transmission after determining that described two UE are in the preset ProSe communication range, and the short distance instruction includes the mark of ProSe application and the application layer identification of described two UE；The processor 61 is specifically used for determining that described two UE are in the preset ProSe communication range according to short distance instruction.

Further, the transmitter 62 is specifically used for sending the communication path switching instruction to ProSe functional network element, so that the ProSe functional network element forwards the communication path switching instruction to the UE；Alternatively, directly sending the communication path switching instruction to the UE by application layer messages.

Figure 21 is the structural schematic diagram of another embodiment of UE of the present invention, as shown in figure 21, the equipment of the present embodiment may include: receiver 71 and processor 72, wherein, receiver 71, it is indicated for receiving the communication path switching that ProSe application server is sent when determining the UE and being in preset ProSe communication range with the UE opposite end UE for carrying out ProSe communication, the ProSe communication is applied by the ProSe on the UE and the opposite end UE to be initiated in the first communication path, the communication path switching instruction includes the mark of ProSe application and the application layer identification of the opposite end UE；Processor 72, for being used to carry out the radio resource of the second communication path of the ProSe communication from serving Base Station requests according to communication path switching instruction；Second communication path between the opposite end UE is established using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path.

The equipment of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 5, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Further, the receiver 71, the communication path switching instruction sent specifically for receiving the ProSe application server by ProSe functional network element；Alternatively, receiving the communication path switching instruction that the ProSe application server is directly transmitted by application layer messages.

Further, the receiver 71 is also used to receive the bearing modification instruction of grouped data network gateway PDN GW transmission, the bearing resource on first communication path is updated according to bearing modification instruction.

Figure 22 is the structural schematic diagram of another embodiment of PCRF equipment of the present invention, as shown in figure 22, the equipment of the present embodiment may include: receiver 81, processor 82 and transmitter 83, wherein, receiver 81, the communication path switching request sent for receiving ProSe application server when determining that two user equipment (UE)s for carrying out ProSe communication are in preset ProSe communication range, the ProSe communication is applied by the ProSe on described two UE to be initiated in the first communication path, the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE；Processor 82, for updating the communication of the ProSe on first communication path according to the communication path switching request Business Stream it is corresponding strategy with charging control PCC strategy；Transmitter 83, for the updated PCC strategy to be sent to grouped data network gateway PDN GW, so that the PDN GW distributes to the bearing resource of first communication path according to the updated PCC policy update.

The equipment of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 6, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Figure 23 is the structural schematic diagram of the 4th embodiment of UE of the present invention, as shown in figure 23, the equipment of the present embodiment may include: processor 91 and transmitter 92, wherein, processor 91, the 2nd UE for determining and carrying out ProSe communication is in preset ProSe communication range, and the ProSe communication is applied by the ProSe on the first UE and the 2nd UE to be initiated in the first communication path；It is used to carry out the radio resource of the second communication path of the ProSe communication from serving Base Station requests；Second communication path between the 2nd UE is established using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path；Transmitter 92, for sending the first switching request of communication path to ProSe application server, first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE, so that the ProSe application server sends the second switching request of communication path to strategy and charging rule functions PCRF equipment, the PCRF equipment is made more to be newly assigned to the bearing resource of first communication path.

The equipment of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 9, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Further, the transmitter 92 is specifically used for sending first switching request of communication path to ProSe functional network element, so that the ProSe functional network element forwards first switching request of communication path to the ProSe application server；Alternatively, directly sending first switching request of communication path to the ProSe application server by application layer messages.

Further, the processor 91 is also used to determine whether on first communication path to carry out the ProSe communication with the 3rd UE；The transmitter 92, for carrying out the ProSe communication with the 3rd UE on first communication path when the processor 91 is determined, the request of ProSe bearing modification is sent to equipment of the core network, to discharge the bearing resource with the 2nd UE for distributing to first communication path；The ProSe communication is not carried out with the 3rd UE on first communication path when the processor 91 is determined, ProSe packet data network PDN connection is sent to equipment of the core network and deactivates request, to discharge all bearing resources for distributing to first communication path.

Figure 24 is the structural schematic diagram of the 6th embodiment of ProSe application server of the present invention, such as Figure 24 It is shown, the equipment of the present embodiment may include: receiver 1001 and transmitter 1002, wherein, receiver 1001, the first switching request of communication path sent for receiving the first user equipment (UE) when the 2nd UE for determining with carrying out ProSe communication is in preset ProSe communication range, the ProSe communication is applied by the ProSe on the first UE and the 2nd UE to be initiated in the first communication path, and first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE；Transmitter 1002, for sending the second switching request of communication path to strategy and charging rule functions PCRF equipment according to first switching request of communication path, second switching request of communication path includes the mark of the ProSe application, the application layer identification using layer identification and the 2nd UE of first UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.

The equipment of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Figure 10, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.

Further, the receiver 1001, the first switching request of the communication path sent specifically for receiving the first UE by ProSe functional network element；Alternatively, receiving the first switching request of the communication path that the first UE is directly transmitted by application layer messages.

Figure 25 is the structural schematic diagram of one embodiment of communication system of the present invention, and as shown in figure 25, the system of the present embodiment includes: ProSe application server 1101, UE1102, PCRF equipment 1103 and equipment of the core network 1104；Wherein, the ProSe application server 1101 accordingly can execute the technical solution of embodiment of the method shown in 4 or Figure 10 using the structure of Figure 13~Figure 14, Figure 18~Figure 20 any device embodiment, that the realization principle and technical effect are similar is similar for it, and details are not described herein again；The UE1102 accordingly can execute the technical solution of embodiment of the method shown in Fig. 5 or Fig. 9 using the structure of Figure 15, Figure 17, Figure 21, Figure 23 any device embodiment, and it is similar that the realization principle and technical effect are similar, and details are not described herein again；The PCRF equipment 1103 accordingly can execute the technical solution of embodiment of the method shown in Fig. 6 using the structure of Figure 16 or Figure 22 shown device embodiment, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.

It is appreciated that receiver described in the embodiment of the present invention and transmitter can be replaced by a transceiver, the transmission of various information is carried out by the transceiver；It can also be replaced by one or more communication interfaces, the transmission of corresponding information is carried out by one or more communications.

In several embodiments provided by the present invention, it should be understood that disclosed device and method may be implemented in other ways.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only a kind of logical function partition, can have in actual implementation Other division mode, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit, can be electrical property, mechanical or other forms.

It is described this unit may or may not be physically separated as illustrated by the separation member, component shown as a unit may or may not be physical unit, it can in one place, or may be distributed over multiple network units.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.

In addition, the functional units in various embodiments of the present invention may be integrated into one processing unit, it is also possible to each unit and physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated unit both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.

The above-mentioned integrated unit being realized in the form of SFU software functional unit, can store in a computer readable storage medium.Above-mentioned SFU software functional unit is stored in a storage medium, it uses including some instructions so that a computer equipment (can be personal computer, server or the network equipment etc.) or processor (processor) execute the part steps of each embodiment the method for the present invention.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), the various media that can store program code such as random access memory (Random Access Memory, RAM), magnetic or disk.

Those skilled in the art can be understood that, for convenience and simplicity of description, only the example of the division of the above functional modules, in practical application, it can according to need and be completed by different functional modules above-mentioned function distribution, the internal structure of device is divided into different functional modules, to complete all or part of the functions described above.The specific work process of the device of foregoing description, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；Although present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it is still possible to modify the technical solutions described in the foregoing embodiments, or equivalent substitution of some or all of the technical features；And these are modified or replaceed, the range for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.

Claims

A kind of communication path switch method of short distance business ProSe characterized by comprising

Determine that two user equipment (UE)s for carrying out ProSe communication are in preset ProSe communication range, the ProSe communication is applied by the ProSe on any one UE in described two UE to be initiated in the first communication path；

Each UE into described two UE sends communication path switching instruction respectively, the communication path switching instruction includes the mark of ProSe application and carries out the application layer identification of the opposite end UE of the ProSe communication with the UE for receiving the communication path switching instruction, so that described two UE, which respectively communicate the ProSe from first communication path, switches to the second communication path；

Communication path switching request is sent to strategy and charging rule functions PCRF equipment, the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.
The method according to claim 1, wherein first communication path is the path evolution block core net EPC, second communication path is PC5 interface direct communication path.
Method according to claim 1 or 2, which is characterized in that before determining two UE for carrying out ProSe communication are in preset ProSe communication range, further includes:

Receive the short distance instruction that ProSe functional network element is sent, the short distance instruction is ProSe functional network element transmission after determining that described two UE are in the preset ProSe communication range, and the short distance instruction includes the mark of ProSe application and the application layer identification of described two UE；

Determining two UE for carrying out ProSe communication are in preset ProSe communication range, comprising:

Determine that described two UE are in the preset ProSe communication range according to short distance instruction.
Method described in any one of claim 1 to 3, which is characterized in that described to send communication path switching instruction to the UE, comprising:

The communication path switching instruction is sent to ProSe functional network element, so that the ProSe functional network element forwards the communication path switching instruction to the UE；Alternatively,

The communication path switching instruction directly is sent to the UE by application layer messages.
A kind of communication path switch method of short distance business ProSe characterized by comprising

User equipment (UE) receives ProSe application server and is determining the UE and carrying out with the UE The communication path switching instruction that the opposite end UE of ProSe communication is sent when being in preset ProSe communication range, the ProSe communication is applied by the ProSe on the UE or the opposite end UE to be initiated in the first communication path, and the communication path switching instruction includes the mark of ProSe application and the application layer identification of the opposite end UE；

The UE is used to carry out the radio resource of the second communication path of the ProSe communication according to communication path switching instruction from serving Base Station requests；

The UE establishes second communication path between the opposite end UE using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path.
According to the method described in claim 5, it is characterized in that, the UE receives the communication path switching instruction that ProSe application server is sent when determining the UE and being in preset ProSe communication range with the UE opposite end UE for carrying out ProSe communication, comprising:

The UE receives the communication path switching instruction that the ProSe application server is sent by ProSe functional network element；Alternatively,

The UE receives the communication path switching instruction that the ProSe application server is directly transmitted by application layer messages.
Method according to claim 5 or 6, which is characterized in that the method also includes:

The UE receives the bearing modification instruction that grouped data network gateway PDN GW is sent, and the bearing resource on first communication path is updated according to bearing modification instruction.
A kind of communication path switch method of short distance business ProSe characterized by comprising

Receive the communication path switching request that ProSe application server is sent when determining that two user equipment (UE)s for carrying out ProSe communication are in preset ProSe communication range, the ProSe communication is applied by the ProSe on any one UE in described two UE to be initiated in the first communication path, and the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE；

The corresponding strategy of Business Stream and charging control PCC strategy for updating the communication of the ProSe on first communication path according to the communication path switching request；

The updated PCC strategy is sent to grouped data network gateway PDN GW, so that the PDN GW distributes to the bearing resource of first communication path according to the updated PCC policy update.
A kind of communication path switch method of short distance business ProSe characterized by comprising

First user equipment (UE) determines that being in preset ProSe with the 2nd UE for carrying out ProSe communication leads to Believe in range, the ProSe communication is applied by the ProSe on 2nd UE of the first UE or described to be initiated in the first communication path；

First UE is used to carry out the radio resource of the second communication path of the ProSe communication from serving Base Station requests；

First UE establishes second communication path between the 2nd UE using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path；

First UE sends the first switching request of communication path to ProSe application server, first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE, so that the ProSe application server sends the second switching request of communication path to strategy and charging rule functions PCRF equipment, the PCRF equipment is made more to be newly assigned to the bearing resource of first communication path.
According to the method described in claim 9, it is characterized in that, described send the first switching request of communication path to ProSe application server, comprising:

First UE sends first switching request of communication path to ProSe functional network element, so that the ProSe functional network element forwards first switching request of communication path to the ProSe application server；Alternatively,

First UE directly sends first switching request of communication path to the ProSe application server by application layer messages.
According to the method described in claim 9, it is characterized in that, described communicate the ProSe from first communication path switches to after second communication path, further includes:

First UE determines whether to carry out the ProSe communication with the 3rd UE on first communication path；

If it is determined that carrying out the ProSe communication with the 3rd UE on first communication path, then the first UE sends the request of ProSe bearing modification to equipment of the core network, to discharge the bearing resource with the 2nd UE for distributing to first communication path；

If it is determined that not carrying out the ProSe communication with the 3rd UE on first communication path, then the first UE sends ProSe packet data network PDN connection to equipment of the core network and deactivates request, to discharge all bearing resources for distributing to first communication path.
A kind of communication path switch method of short distance business ProSe characterized by comprising

It receives the first user equipment (UE) and is in preset in the 2nd UE for determining with carrying out ProSe communication The first switching request of communication path sent when in ProSe communication range, the ProSe communication is applied by the ProSe on 2nd UE of the first UE or described to be initiated in the first communication path, and first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE；

The second switching request of communication path is sent to strategy and charging rule functions PCRF equipment according to first switching request of communication path, second switching request of communication path includes the mark of the ProSe application, the application layer identification using layer identification and the 2nd UE of first UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.
According to the method for claim 12, which is characterized in that first switching request of communication path for receiving the first UE and being sent when the 2nd UE for determining with carrying out ProSe communication is in preset ProSe communication range, comprising:

Receive the first switching request of the communication path that the first UE is sent by ProSe functional network element；Alternatively,

Receive the first switching request of the communication path that the first UE is directly transmitted by application layer messages.
A kind of short distance business ProSe application server characterized by comprising

Determining module, for determining that two user equipment (UE)s for carrying out ProSe communication are in preset ProSe communication range, the ProSe communication is applied by the ProSe on any one UE in described two UE to be initiated in the first communication path；

Sending module, communication path switching instruction is sent respectively for each UE into described two UE, the communication path switching instruction includes the mark of ProSe application and carries out the application layer identification of the opposite end UE of the ProSe communication with the UE for receiving the communication path switching instruction, so that described two UE, which respectively communicate the ProSe from first communication path, switches to the second communication path；Communication path switching request is sent to strategy and charging rule functions PCRF equipment, the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.
ProSe application server according to claim 14, which is characterized in that first communication path is the path evolution block core net EPC, and second communication path is PC5 interface direct communication path.
ProSe application server according to claim 14 or 15, which is characterized in that further include:

Receiving module, for receiving the short distance instruction of ProSe functional network element transmission, the short distance instruction is ProSe functional network element transmission after determining that described two UE are in the preset ProSe communication range, and the short distance instruction includes the mark of ProSe application and the application layer identification of described two UE；

The determining module is specifically used for determining that described two UE are in the preset ProSe communication range according to short distance instruction.
ProSe application server according to any one of claims 14-16, it is characterized in that, the sending module is specifically used for sending the communication path switching instruction to ProSe functional network element, so that the ProSe functional network element forwards the communication path switching instruction to the UE；Alternatively, directly sending the communication path switching instruction to the UE by application layer messages.
A kind of user equipment (UE) characterized by comprising

Receiving module, it is indicated for receiving the communication path switching that ProSe application server is sent when determining the UE and being in preset ProSe communication range with the UE opposite end UE for carrying out ProSe communication, the ProSe communication is applied by the ProSe on the UE or the opposite end UE to be initiated in the first communication path, and the communication path switching instruction includes the mark of ProSe application and the application layer identification of the opposite end UE；

Resource request module, for being used to carry out the radio resource of the second communication path of the ProSe communication from serving Base Station requests according to communication path switching instruction；

Path switching module for establishing second communication path between the opposite end UE using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path.
UE according to claim 18, which is characterized in that the receiving module, the communication path switching instruction sent specifically for receiving the ProSe application server by ProSe functional network element；Alternatively, receiving the communication path switching instruction that the ProSe application server is directly transmitted by application layer messages.
UE described in 8 or 19 according to claim 1, which is characterized in that the receiving module is also used to receive the bearing modification instruction of grouped data network gateway PDN GW transmission, the bearing resource on first communication path is updated according to bearing modification instruction.
A kind of tactful and charging rule functions PCRF equipment characterized by comprising

Receiving module is determining two use for carrying out ProSe communication for receiving ProSe application server The communication path switching request that family equipment UE is sent when being in preset ProSe communication range, the ProSe communication is applied by the ProSe on any one UE in described two UE to be initiated in the first communication path, and the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE；

Policy update module, the corresponding strategy of Business Stream and charging control PCC strategy for updating the communication of the ProSe on first communication path according to the communication path switching request；

Sending module, for the updated PCC strategy to be sent to grouped data network gateway PDN GW, so that the PDN GW distributes to the bearing resource of first communication path according to the updated PCC policy update.
A kind of user equipment (UE) characterized by comprising

Determining module, the 2nd UE for determining and carrying out ProSe communication are in preset ProSe communication range, and the ProSe communication is applied by the ProSe on 2nd UE of the first UE or described to be initiated in the first communication path；

Resource request module, for being used to carry out the radio resource of the second communication path of the ProSe communication from serving Base Station requests；

Path switching module for being established second communication path between the 2nd UE using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path；

Sending module, for sending the first switching request of communication path to ProSe application server, first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE, so that the ProSe application server sends the second switching request of communication path to strategy and charging rule functions PCRF equipment, the PCRF equipment is made more to be newly assigned to the bearing resource of first communication path.
UE according to claim 22, it is characterized in that, the sending module is specifically used for sending first switching request of communication path to ProSe functional network element, so that the ProSe functional network element forwards first switching request of communication path to the ProSe application server；Alternatively, directly sending first switching request of communication path to the ProSe application server by application layer messages.
UE according to claim 22, which is characterized in that the determining module is also used to determine whether on first communication path to carry out the ProSe communication with the 3rd UE；

The sending module, for when the determining module determine on first communication path with it is described 3rd UE carries out the ProSe communication, sends the request of ProSe bearing modification to equipment of the core network, to discharge the bearing resource with the 2nd UE for distributing to first communication path；The ProSe communication is not carried out with the 3rd UE on first communication path when the determining module is determined, ProSe packet data network PDN connection is sent to equipment of the core network and deactivates request, to discharge all bearing resources for distributing to first communication path.
A kind of short distance business ProSe application server characterized by comprising

Receiving module, the first switching request of communication path sent for receiving the first user equipment (UE) when the 2nd UE for determining with carrying out ProSe communication is in preset ProSe communication range, the ProSe communication is applied by the ProSe on 2nd UE of the first UE or described to be initiated in the first communication path, and first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE；

Sending module, for sending the second switching request of communication path to strategy and charging rule functions PCRF equipment according to first switching request of communication path, second switching request of communication path includes the mark of the ProSe application, the application layer identification using layer identification and the 2nd UE of first UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.
ProSe application server according to claim 25, which is characterized in that the receiving module, the first switching request of the communication path sent specifically for receiving the first UE by ProSe functional network element；Alternatively, receiving the first switching request of the communication path that the first UE is directly transmitted by application layer messages.
A kind of short distance business ProSe application server characterized by comprising

Processor, for determining that two user equipment (UE)s for carrying out ProSe communication are in preset ProSe communication range, the ProSe communication is applied by the ProSe on any of described two UE UE to be initiated in the first communication path；

Transmitter, communication path switching instruction is sent respectively for each UE into described two UE, the communication path switching instruction includes the mark of ProSe application and carries out the application layer identification of the opposite end UE of the ProSe communication with the UE for receiving the communication path switching instruction, so that described two UE, which respectively communicate the ProSe from first communication path, switches to the second communication path；Communication path switching request is sent to strategy and charging rule functions PCRF equipment, the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.
ProSe application server according to claim 27, which is characterized in that first communication path is the path evolution block core net EPC, and second communication path is PC5 interface direct communication path.
The ProSe application server according to claim 27 or 28, which is characterized in that further include:

Receiver, for receiving the short distance instruction of ProSe functional network element transmission, the short distance instruction is ProSe functional network element transmission after determining that described two UE are in the preset ProSe communication range, and the short distance instruction includes the mark of ProSe application and the application layer identification of described two UE；

The processor is specifically used for determining that described two UE are in the preset ProSe communication range according to short distance instruction.
The ProSe application server according to any one of claim 27~29, it is characterized in that, the transmitter is specifically used for sending the communication path switching instruction to ProSe functional network element, so that the ProSe functional network element forwards the communication path switching instruction to the UE；Alternatively, directly sending the communication path switching instruction to the UE by application layer messages.
A kind of user equipment (UE) characterized by comprising

Receiver, it is indicated for receiving the communication path switching that ProSe application server is sent when determining the UE and being in preset ProSe communication range with the UE opposite end UE for carrying out ProSe communication, the ProSe communication is applied by the ProSe on the UE or the opposite end UE to be initiated in the first communication path, and the communication path switching instruction includes the mark of ProSe application and the application layer identification of the opposite end UE；

Processor, for being used to carry out the radio resource of the second communication path of the ProSe communication from serving Base Station requests according to communication path switching instruction；Second communication path between the opposite end UE is established using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path.
UE according to claim 31, which is characterized in that the receiver, the communication path switching instruction sent specifically for receiving the ProSe application server by ProSe functional network element；Alternatively, receiving the communication path switching instruction that the ProSe application server is directly transmitted by application layer messages.
The UE according to claim 31 or 32, which is characterized in that the receiver is also used It is indicated in receiving the bearing modification that grouped data network gateway PDN GW is sent, the bearing resource on first communication path is updated according to bearing modification instruction.
A kind of tactful and charging rule functions PCRF equipment characterized by comprising

Receiver, the communication path switching request sent for receiving ProSe application server when determining that two user equipment (UE)s for carrying out ProSe communication are in preset ProSe communication range, the ProSe communication is applied by the ProSe on any one UE in described two UE to be initiated in the first communication path, and the communication path switching request includes the mark of the ProSe application and the application layer identification of described two UE；

Processor, the corresponding strategy of Business Stream and charging control PCC strategy for updating the communication of the ProSe on first communication path according to the communication path switching request；

Transmitter, for the updated PCC strategy to be sent to grouped data network gateway PDN GW, so that the PDN GW distributes to the bearing resource of first communication path according to the updated PCC policy update.
A kind of user equipment (UE) characterized by comprising

Processor, the 2nd UE for determining and carrying out ProSe communication are in preset ProSe communication range, and the ProSe communication is applied by the ProSe on 2nd UE of the first UE or described to be initiated in the first communication path；It is used to carry out the radio resource of the second communication path of the ProSe communication from serving Base Station requests；Second communication path between the 2nd UE is established using the radio resource, and the ProSe is communicated from first communication path and switches to second communication path；

Transmitter, for sending the first switching request of communication path to ProSe application server, first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE, so that the ProSe application server sends the second switching request of communication path to strategy and charging rule functions PCRF equipment, the PCRF equipment is made more to be newly assigned to the bearing resource of first communication path.
UE according to claim 35, it is characterized in that, the transmitter is specifically used for sending first switching request of communication path to ProSe functional network element, so that the ProSe functional network element forwards first switching request of communication path to the ProSe application server；Alternatively, directly sending first switching request of communication path to the ProSe application server by application layer messages.
UE according to claim 35, which is characterized in that the processor is also used to determine whether on first communication path to carry out the ProSe communication with the 3rd UE；

The transmitter, for carrying out the ProSe communication with the 3rd UE on first communication path when the processor is determined, the request of ProSe bearing modification is sent to equipment of the core network, to discharge the bearing resource with the 2nd UE for distributing to first communication path；The ProSe communication is not carried out with the 3rd UE on first communication path when the processor is determined, ProSe packet data network PDN connection is sent to equipment of the core network and deactivates request, to discharge all bearing resources for distributing to first communication path.
A kind of short distance business ProSe application server characterized by comprising

Receiver, the first switching request of communication path sent for receiving the first user equipment (UE) when the 2nd UE for determining with carrying out ProSe communication is in preset ProSe communication range, the ProSe communication is applied by the ProSe on 2nd UE of the first UE or described to be initiated in the first communication path, and first switching request of communication path includes the mark of the ProSe application and the application layer identification of the 2nd UE；

Transmitter, for sending the second switching request of communication path to strategy and charging rule functions PCRF equipment according to first switching request of communication path, second switching request of communication path includes the mark of the ProSe application, the application layer identification using layer identification and the 2nd UE of first UE, so that the PCRF equipment is more newly assigned to the bearing resource of first communication path.
The ProSe application server according to claim 38, which is characterized in that the receiver, the first switching request of the communication path sent specifically for receiving the first UE by ProSe functional network element；Alternatively, receiving the first switching request of the communication path that the first UE is directly transmitted by application layer messages.
A kind of communication system characterized by comprising short distance business ProSe application server, user equipment (UE), strategy and charging rule functions PCRF equipment and equipment of the core network；Wherein, the ProSe application server is using ProSe application server described in any one of claim 14~17 or claim 25~26；The UE is using UE described in any one of claim 18~20 or claim 22~24；The PCRF equipment is using PCRF equipment described in claim 21.
A kind of communication system characterized by comprising short distance business ProSe application server, user equipment (UE), strategy and charging rule functions PCRF equipment and equipment of the core network；Wherein, the ProSe application server is using ProSe application server described in any one of claim 27~30 or claim 38~39；The UE is using UE described in any one of claim 31~33 or claim 35~37；The PCRF equipment is using PCRF equipment described in claim 34.