CN104244444A

CN104244444A - D2D transmission control method and equipment

Info

Publication number: CN104244444A
Application number: CN201310231564.1A
Authority: CN
Inventors: 赵亚利; 刘佳敏
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2013-06-09
Filing date: 2013-06-09
Publication date: 2014-12-24
Anticipated expiration: 2033-06-09
Also published as: CN104244444B

Abstract

The invention discloses a D2D transmission control method and equipment. According to the method, a D2D dedicated control entity is introduced; the D2D dedicated control entity receives D2D transmission requests sent by a D2D terminal in a management area of the D2D dedicated control entity; according to the received D2D transmission requests, D2D transmission control over the D2D terminal in the management area of the D2D dedicated control entity is achieved, and the D2D transmission control is achieved.

Description

D2D transfer control method and equipment

Technical field

The present invention relates to wireless communication technology field, particularly relate to D2D transfer control method and equipment.

Background technology

At LTE(Long Term Evolution, Long Term Evolution) in system, adopt the central controlled communication mode of network, i.e. UE(User Equipment, subscriber equipment, i.e. terminal) up-downgoing data carry out all under the control of a network sending and receiving.Communication between UE and UE is undertaken forwarding and controlling by network, direct communication link is there is not between UE and UE, under this mode, the transfer of data of UE and network can referred to as D2N(Device to Network, and equipment is to network) transmission, as shown in Figure 1.

In mobile communication system future development, in order to better meet user's request, the efficiency of the information interaction of lifting means, introduce D2D Discovery(Device to Device Discovery, the discovery of device-to-device) and D2D Communication(Device to Device Communication, the communication of device-to-device) mechanism.

In D2D communication pattern, allow between terminal close to each other and terminal directly to carry out D2DCommunication.The UE adopting D2D communication mode to carry out communicating can be at net (there is the network coverage UE position) or off-grid (UE position does not have the network coverage).For in net situation, the UE in D2D communication set can belong to identical or different eNB(evolved NodeB, enode b, i.e. base station), even can across PLMN(Public Land Mobile Network, public land mobile network).

For ease of describing, the link of direct communication between D2D terminal is called D2D link(D2D link), the cellular communication link between network and D2D terminal is referred to as D2N link(D2N link).The schematic diagram of D2D communication as shown in Figure 2.

In D2D transmitting procedure, adopt up-link carrier (for FDD(Frequency Division Duplexing, Frequency Division Duplexing (FDD)) system) or sub-frame of uplink (for TDD(Time Division Duplexing, time division duplex) system), or descending carrier (for FDD system) or descending sub frame (for TDD system) have following consideration: if use descending sub frame or descending carrier, so UE at least needs to receive the control information that base station side N2D connection issues, as PDCCH(Physical Downlink Control Channel, Physical Downlink Control Channel), on D2D connects, send D2D data and/or control information again simultaneously, such UE needs after receiving PDCCH, carry out transmitting-receiving conversion.Consider that PDCCH demodulation performance needs multiple row CRS(Cell-specific Reference Signals, cell special reference) symbol and transmitting-receiving between change-over time, D2D may be caused to connect OFDM(Orthogonal Frequency Division Multiplexing available in an available subframe, OFDM) symbol numbers is little, in order to avoid this situation occurs, tend to the resource adopting sub-frame of uplink or up-link carrier to transmit as D2D at present.

Typical D2D communication scenes comprises following three kinds:

(1) One-to-one communication between D2D UE;

(2) UE send identical data (i.e. group communication) to all UE in a communication group by single transmission;

(3) UE send identical data (i.e. broadcast communication) to all neighbouring UE authorized by single transmission.

Between D2D UE, One-to-one communication is mainly used in social grade for application, and the scene of group or broadcast communication is mainly used in fire-fighting in public safety applications, rescue and anti-terrorism etc.

Summary of the invention

Embodiments provide D2D transfer control method and equipment, by introducing the special controlled entity of D2D, realizing D2D transmission and controlling.

The D2D transfer control method that the embodiment of the present invention provides, comprising:

The special controlled entity of D2D receives the D2D transmission request that the D2D terminal in the special controlled entity management area of described D2D sends;

The special controlled entity of described D2D, according to the D2D transmission request received, carries out D2D transmission to the D2D terminal in the special controlled entity management area of described D2D and controls.

The special controlled entity device of the D2D that the embodiment of the present invention provides, comprising:

Receiver module, the D2D transmission request that the D2D terminal for receiving in the special controlled entity management area of described D2D sends;

Control module, for the D2D transmission request received according to described receiver module, carries out D2D transmission to the D2D terminal in the special controlled entity management area of described D2D and controls.

The embodiment of the present invention additionally provides a kind of network equipment comprising the special controlled entity device of above-mentioned D2D.

The embodiment of the present invention additionally provides a kind of D2D terminal comprising the special controlled entity device of above-mentioned D2D.

In the above embodiment of the present invention, by introducing the special controlled entity of D2D and configuration management region in the special controlled entity of D2D, the D2D that the D2D terminal received in the special controlled entity management area of described D2D by the special controlled entity of D2D sends transmits request, and according to the D2D transmission request received, carry out D2D transmission to the D2D terminal in the special controlled entity management area of described D2D to control, achieve D2D transmission and control.

Accompanying drawing explanation

Fig. 1 is the central controlled communication mode schematic diagram of network in existing LTE system;

Fig. 2 is D2D communication scheme in prior art;

The cellular logic configuration diagram be applied to after the special controlled entity of introducing D2D of net scene that Fig. 3 provides for the embodiment of the present invention;

Fig. 4 carries out authentication and carries out D2D Discovery signal sending the schematic flow sheet controlled to being found UE for the special controlled entity of D2D that realizes based on framework shown in Fig. 3;

Fig. 5 is for the special controlled entity of D2D realized based on framework shown in Fig. 3 is to finding that UE carries out authentication and carries out the schematic flow sheet of D2D Discovery Signal reception control;

Fig. 6 to communicate the assigning process of the resource used and D2D connection building process schematic diagram for the D2D realized based on framework shown in Fig. 3;

The cellular logic configuration diagram be applied to after the special controlled entity of introducing D2D of off-grid scene that Fig. 7 provides for the embodiment of the present invention;

The structural representation of the special controlled entity device of D2D that Fig. 8 provides for the embodiment of the present invention.

Embodiment

The embodiment of the present invention is given the D2D realized by the special controlled entity of D2D and transmits control program.Introduce the special controlled entity of D2D in the embodiment of the present invention, the special controlled entity of D2D can control the D2D transmission in the special controlled entity management area of D2D.Different eNB can be crossed in this management area, during to solve UE ownership different e NB in D2D group, and the problem of bad coordination between multiple eNB.

The D2D of the special controlled entity of D2D transmit that controlling functions includes but not limited in the following aspects one or more:

-authentication, that is, find D2D UE, be found authority identification;

-D2D finds that (D2D Discovery) signal sends and controls, that is, determine the relevant configuration information being found the D2D discovery signal that UE sends.What is called is found UE and refers to and expect to be found by neighbouring UE, further, can also set up the UE that D2D is connected with discovery UE.In other words, being found UE needs to send D2D discovery signal, to make neighbouring UE find that this is found UE, can also set up with it D2D further and connect;

-D2D finds that (D2D Discovery) Signal reception controls, that is, determine to find that UE receives the relevant configuration information of the D2D discovery signal of (detection).Be found UE near the so-called UE of discovery refers to and expects to find, further, D2D can also be set up be connected UE with the neighbouring UE that is found.In other words, find UE need receive D2D find signal, with find send D2D find signal be found UE;

-D2D connection management, comprises D2D establishment of connection, amendment or release etc.;

-D2D communicates (D2D communication) resource management, comprises the distribution or adjustment etc. of the D2D communication resource.

Below in conjunction with accompanying drawing, the embodiment of the present invention is described in detail.

See Fig. 3, it is the cellular logic framework after the special controlled entity of introducing D2D that the embodiment of the present invention provides.This cellular logic framework can increase the special controlled entity of D2D and realize in existing LTE network framework.The special controlled entity of this D2D and eNB and MME(Mobility Management Entity, mobile management entity) there is communication connection.

Introduce in the cellular logic framework after D2D special controlled entity, the special controlled entity of D2D is independently logic entity, and it can be realized by independently hardware device, also can be embedded in other hardware device or logic entity, such as be embedded in MME or eNB.The area size that the special controlled entity of D2D manages can be pre-configured, depend on carrier policy, such as its management area can comprise the coverage of preassigned N number of community, again such as when the special controlled entity of D2D is embedded in MME, the coverage of the community that its management area is administered for this MME, in this case, be configured with the information of the community that it manages in the special controlled entity of D2D, or the special controlled entity of D2D knows its community managed by alternate manner.If the special controlled entity of D2D embeds in eNB, then the D2D transmission under the eNB embedded by only controlling.

The special controlled entity of D2D can by MME from HSS(Home Subscriber Server, home subscriber server) or other node storing UE CAMEL-Subscription-Information obtain the CAMEL-Subscription-Information of D2D UE.Further, can exist between the special controlled entity of D2D and ProSe server (namely close to server) directly or indirect interface, to obtain business and mapping relations between the code that sends of eating dishes without rice or wine.

Based on the framework shown in Fig. 3, the D2D Control on Communication under net scene can be realized.So-called at net scene (i.e. in coverage), refer to that there is the scene of the network coverage UE position.

Control several aspects such as (comprise D2D Discovery signal and send control and the control of D2D Discovery Signal reception), D2D connection management and D2D communication resource management from authentication, D2D Discovery Signal transmissions respectively below, be described in the specific implementation process of the D2D Control on Communication under net scene.UE in following examples, when not special declaration, all refers to the UE with D2D Discovery function (D2D discovery feature) and D2D communication function (D2D communication function).

See Fig. 4, the special controlled entity of D2D provided for the embodiment of the present invention carries out authentication and carries out D2D Discovery signal sending the flow process controlled to being found UE.Be found to be example with the UE1 request under eNB1 below to describe, as shown in the figure, this flow process can comprise:

Step 1:UE1 sends D2D Discovery signal to the special controlled entity of D2D and sends a request message.Following all or part of information can be carried: the business information, the UE positional information that need to adopt the transmission of D2D communication mode in this request message.

Such as, certain business (application in UE1 under eNB1, namely apply) expect to start D2D Discovery function, then UE1 is not illustrated in the drawings by eNB1(eNB1) send a request message to its D2D belonged to special controlled entity transmission D2D Discovery signal, the corresponding relation of the code (Code) used with this business of acquisition request (application) and D2D Discovery signal of eating dishes without rice or wine and D2D Discovery signal correction configuration information.

The special controlled entity of step 2 ~ 3:D2D obtains the CAMEL-Subscription-Information of UE1 from HSS.Wherein, the special controlled entity of D2D can ask all or part of CAMEL-Subscription-Information of UE to HSS, at least comprise in the UE CAMEL-Subscription-Information asked: UE whether allow as D2D be found UE(namely whether allow this UE by other UE by D2D find mode find), further also can comprise UE and allow to be found UE as the D2D of which kind of business.

The special controlled entity of step 4:D2D carries out authentication according to the CAMEL-Subscription-Information of the UE1 obtained from HSS to UE1, namely judges whether UE1 allows to be found UE as D2D according to the CAMEL-Subscription-Information of UE1.

Such as, when not carrying the business information needing to adopt the transmission of D2D communication mode during the D2D Discovery signal sent in step 1 sends a request message, if the CAMEL-Subscription-Information of UE1 shows that UE1 can not be found UE as D2D, then authentication does not pass through; If the CAMEL-Subscription-Information of UE1 shows that UE1 can be found UE as D2D, then authentication is passed through.For another example, when carrying the business information needing to adopt the transmission of D2D communication mode during the D2D Discovery signal sent in step 1 sends a request message, and UE1 needs the business of carrying out D2D Discovery to be interaction service, but UE1 CAMEL-Subscription-Information shows that UE1 can only be found UE as the D2D of downloading business, then authentication does not pass through; If UE1 needs the business of carrying out D2D Discovery to be interaction service in step 1, and UE1 CAMEL-Subscription-Information shows that UE1 can be found UE as the D2D of interaction service, then authentication passes through.

If authentication does not pass through, then this authentication flow process terminates, further, the special controlled entity of D2D can return D2D Discovery signal to UE1 and send response message (i.e. D2D Discovery signal send a request message response message), to notify that authentication unsuccessfully.If authentication passes through, then perform following steps 7.

After the special controlled entity of step 7:D2D passes through UE1 authentication, return D2D Discovery signal to UE1 and send response message (i.e. D2D Discovery signal send a request message response message), to notify authentication success, in this response message, carry D2D Discovery signal correction configuration information.Described D2D Discovery signal correction configuration information can comprise: type, the D2D Discovery signal of D2D Discovery signal send the running time-frequency resource, transmitting power, the MCS(Modulation and Coding Schemes that use, modulating-coding mechanism) etc., the identification code information that the business that also can comprise needs to carry out D2D Discovery uses in air interface transmission.

Concrete, after the special controlled entity of D2D passes through UE1 authentication, and the special controlled entity of D2D judges have enough resources to allow UE1 to send D2D Discovery signal, then the special controlled entity of D2D determines that D2D Discovery signal correction configuration information is (as according to the current available D2D Discovery resource of system, the link-qualities of UE etc. determine D2D Discovery signal correction configuration information), and the D2D Discovery signal correction configuration information determined is carried in D2D Discovery signal transmission response message, the eNB1 belonged to by UE1 sends to UE1.Wherein, D2D Discovery signal correction configuration information can comprise: the type, running time-frequency resource, transmitting power, MCS etc. of D2D Discovery signal.

Further, when also carrying the business information needing to carry out D2D Discovery in the D2D Discovery signal that UE1 sends sends a request message, pass through afterwards in step 4 authentication of above-mentioned flow process, before step 7, also can comprise the following steps the special controlled entity of 5 ~ 6:D2D obtain this identification code needing the business of carrying out D2D Discovery to use in air interface transmission from ProSe server.Accordingly, in step 7, identification code corresponding for this business is carried on D2D Discovery signal and sends in response message by the special controlled entity of D2D, and the eNB1 belonged to by UE1 sends to UE1.

After UE1 receives D2D Discovery signal transmission response from the special controlled entity of D2D, according to the D2D Discovery signal correction configuration information wherein carried, eating dishes without rice or wine to send D2D Discovery signal.Such as, UE1 on the running time-frequency resource indicated by D2D Discovery signal correction configuration information, according to indicated transmitting power, with code corresponding to business that find of request send the D2D Discovery signal of this business.

See Fig. 5, the special controlled entity of D2D provided for the embodiment of the present invention is to finding that UE carries out the flow process of authentication and carries out the flow process that D2D Discovery Signal reception controls.Carry out being found to be example with the UE2 request under eNB2 below to describe, as shown in the figure, this flow process can comprise:

Step 1:UE2 sends D2D Discovery Signal reception request message to the special controlled entity of D2D.Optionally, the indication information that UE2 expects the business found in this request message, can be carried, and/or the positional information etc. of UE2.

Such as, UE2 under eNB2 is to certain business (application, namely apply) interested, expect have the UE of this business to carry out D2D Discovery with neighbouring, then UE2 is not illustrated in the drawings by eNB2(eNB2) send D2D Discovery Signal reception request message to the special controlled entity of its D2D belonged to, carrying out D2D Discovery signal in UE list with being found of allowing of acquisition request UE2 to send and D2D Discovery signal finds signal correction configuration information for UE and the D2D Discovery of this business, to receive the D2D Discovery signal of the UE being found the D2D Discovery signal sending its interested business in UE list.

The special controlled entity of step 2 ~ 3:D2D obtains the CAMEL-Subscription-Information of UE2 from HSS.Wherein, the special controlled entity of D2D can ask all or part of CAMEL-Subscription-Information of UE to HSS, at least comprise in the UE CAMEL-Subscription-Information asked: whether UE allows to find namely whether UE(allow this UE to find that mode finds other UE by D2D as D2D), further also can comprise UE and allow to find UE as the D2D of which kind of business.

The special controlled entity of step 4:D2D carries out authentication according to the CAMEL-Subscription-Information of the UE2 obtained from HSS to UE2, namely judges whether UE2 allows to carry out D2D discovery according to the CAMEL-Subscription-Information of UE2.

Such as, the CAMEL-Subscription-Information of UE2 shows that UE2 can not find UE as D2D, then authentication does not pass through, otherwise authentication is passed through.For another example, if UE2 expects that the business found is interaction service in step 1, but the CAMEL-Subscription-Information of UE2 shows that UE2 can only find UE as the D2D of downloading business, then authentication does not pass through; If UE2 expects that the business found is interaction service in step 1, and the CAMEL-Subscription-Information of UE2 shows that UE2 can find UE as the D2D of interaction service, then authentication is passed through.

If authentication does not pass through, then this authentication flow process terminates, further, the special controlled entity of D2D can return D2D Discovery Signal reception response message (i.e. the response message of D2D Discovery Signal reception request message) to UE2, to notify the failure of UE2 authentication.If authentication passes through, then perform following steps 5.

After the special controlled entity of step 5 ~ 6:D2D passes through UE2 authentication, obtain the D2D Discovery Signal reception configuration information of UE2.Described D2D Discovery Signal reception configuration information can comprise: what UE2 allowed is found the UE list carrying out the transmission of D2D Discovery signal in UE list.Concrete, after the special controlled entity of D2D passes through UE2 authentication, be found UE list according to what obtain from the CAMEL-Subscription-Information of HSS or ProSe server that UE2 allows, and be found UE list, to select to carry out D2D and find from this terminal that signal sends further.There is shown the situation being found UE list obtaining UE2 permission from ProSe server.

The special controlled entity of step 7:D2D returns D2D Discovery Signal reception response message to UE2, to notify authentication success, carries D2D Discovery Signal reception configuration information in this response message.

Concrete, the mark of what UE2 allowed by the special controlled entity of D2D the be found UE carrying out the transmission of D2D Discovery signal in UE list is carried in D2D Discovery Signal reception response message, and the eNB2 belonged to by UE2 sends to UE2.

In above-mentioned flow process, preferably, according to the information of carrying in D2D Discovery Signal reception request message, the special controlled entity of D2D, when carrying out D2D Discovery Signal reception and controlling, can adopt following operation:

(1) if carry the business information that UE2 expects discovery in the D2D Discovery Signal reception request message of UE2 transmission, what then the special controlled entity of D2D judged that UE2 allows be found whether have in UE list UE carrying out D2D Discovery signal send and D2D Discovery signal for this business, if had, then the mark and/or this D2D Discovery signal correction configuration information being found UE that this are found UE send to UE2;

(2) if carry the positional information of UE2 in the D2D Discovery Signal reception request message of UE2 transmission, then the special controlled entity of D2D selects to meet the UE of following condition from being found of allowing of UE2 UE list: be no more than the UE of setting threshold scope with the UE distance sending D2D Discovery Signal reception request message, and the mark of the UE selected and/or the D2D Discovery signal correction configuration information of UE selected are carried on the response of D2D Discovery Signal reception send to UE2.

After UE2 receives D2D Discovery Signal reception response message from the special controlled entity of D2D, according to the D2D Discovery Signal reception configuration information wherein carried, eating dishes without rice or wine to receive D2D Discovery signal.Such as, UE2, according to the mark of the UE received and corresponding D2D Discovery signal correction configuration information, corresponding D2D Discovery signal running time-frequency resource receives the D2DDiscovery signal of corresponding UE.

The UE that is found in management area, D2D special control point sends D2D Discovery signal according to the D2D Discovery signal correction configuration information of the special controlled entity configuration of D2D, and the discovery UE in this management area receives the D2D Discovery signal of other UE according to the D2D Discovery Signal reception configuration information of the special controlled entity configuration of D2D.When find UE be found to expectation be found UE time, optionally, D2D connection establishment process can be initiated, thus connected by the D2D set up and be found UE and carry out D2D and communicate.

See Fig. 6, the assigning process of the resource that the D2D communication provided for the embodiment of the present invention uses and D2D connection building process schematic diagram.By D2D Discovery discovery procedure, flow process below finds that UE1 meets D2D connection establishment condition with aforementioned UE2, thus initiation D2D connection establishment process is that example describes, and as shown in the figure, this flow process can comprise:

Step 601:UE2(expects the discovery UE carrying out D2D communication) find that UE1(is found UE by D2D Discovery discovery procedure) meet D2D connection establishment condition, then send D2D connection establishment request message to the special controlled entity of D2D, be connected to ask setting up D2D with UE1.

Concrete, by D2D Discovery discovery procedure, UE2 finds that UE1 meets D2D connection establishment condition, then do not illustrated in the drawings by the eNB2(eNB2 that UE2 belongs to) send D2D connection establishment request message to the special controlled entity of D2D.The mark of UE2 can be carried in D2D connection establishment request message, the information relevant to the business needing to carry out D2D transmission can also be carried further, such as type of service, QoS(Quality of Service, service quality) etc.Wherein, meet the condition of D2D connection establishment, refer to by D2D Discovery discovery procedure, UE2(finds UE) find that UE1(is found UE) D2D Discovery signal in carry the mark of its interested business, and the radio link conditions between UE2 and UE1 meets D2D transmits demand.

The special controlled entity of step 602:D2D determines whether to allow D2D connection establishment.If allowed, then perform subsequent step 603, otherwise the D2D connection establishment request of refusal UE2.

Concrete, the special controlled entity of D2D can according to current UE(UE2 with UE1 that will set up D2D and connect) mark, D2D is connected to transmit business information, need to set up UE(UE2 with UE1 that D2D connects) resource situation (be limited to D2D and be connected the situation with D2N connection multiplexing same asset) under the eNB that belongs to, D2D be connected private resource service condition (D2D connection is connected the situation of use different resource with D2N), determines whether permission D2D connection establishment.

The special controlled entity of step 603:D2D, after determining to allow D2D connection establishment, is the resource that D2D UE distribution D2D communication uses.

Concrete, D2D communication resource distribution is responsible for by the special controlled entity of D2D.Use independently resource for D2D link and D2N link, the type of service that the special controlled entity of D2D will be able to transmit according to UE2, current D2D connect available surplus resources, in D2D group the duplex mode of UE1 home cell and duplex mode (if TDD system also needs to consider that TDD UL(the is up)/DL(of UE2 home cell descending) configuration) determine the information such as the resource of sending and receiving UE in each subframe of UE in D2D group and transmitting-receiving use.

After the special controlled entity of step 604:D2D distributes the D2D communication resource, resource allocation conditions is notified the base station of the base station that UE1 belongs to and UE2 ownership, the base station that the resource notification of distributing can belong to UE2, UE1 according to the scheduling timing relation of UE2 home cell by the base station of UE2 ownership can according to the scheduling timing relation of UE1 home cell by the resource notification of distribution to UE1.Such as, when dispatching UE2, by descending sub frame, the resource distributing to UE2 being sent to UE2, when dispatching UE1, by descending sub frame, the resource distributing to UE1 being sent to UE1.

The resource that the D2D communication distributing to UE uses, only for the D2D communication after this D2D connection establishment, next time after D2D connection establishment, can need the resource redistributing D2D communication use.The resource that the D2D communication distributing to UE uses also can within a period of time effectively (length of this time period can be set by the special controlled entity of D2D), and within this period, UE carries out D2D communication can use this resource.

The special controlled entity of step 605:D2D, after carrying out Resourse Distribute, sends connection establishment response message to UE1 and UE2, completes to indicate UE2 and UE1D2D connection establishment.Send in the connection establishment response message of UE1 and can comprise: mark, D2D RB(D2D radio bearer as the UE2 of Correspondent Node) content such as relevant information; Send in the connection establishment message of UE2 and can comprise: mark, D2D RB(D2D radio bearer as the UE1 of Correspondent Node) content such as relevant information.In addition, D2D connection establishment response message can also carry the resource of the D2D transmission use distributed in step 603.Certainly, the resource that D2D connection establishment response message and D2D transmission use also can be sent by two message respectively.

In above-mentioned flow process, the special controlled entity of D2D determines whether that the step allowing D2D connection establishment is optional step, namely, the special controlled entity of D2D can after receiving the D2D connection establishment request message of UE2 be directly UE1 with UE2 distribute D2D communicate use resource, after UE receives the indication information of the resource that D2D communication uses, namely can confirm the success of D2D connection establishment.

Further, if there is UE will add D2D group, expect that carrying out D2D with the member in D2D group communicates, then can to the special controlled entity request of D2D set up D2D connect, its D2D connection establishment process and above-mentioned flow process similar, be not described in detail in this.

Further, if there is UE will leave D2D group, namely no longer carries out D2D with the member in D2D group and communicate, then can send D2D Connection Release request message to the special controlled entity of D2D.The D2D that such as above-mentioned UE2 will discharge between UE1 is connected, then send D2D Connection Release request message to the special controlled entity of D2D, wherein carry the mark of UE1, is connected with the D2D between UE1 to ask release; After the special controlled entity of D2D receives this D2D Connection Release request message, according to ask discharge D2D connect carry out respective handling, such as delete local this D2D link information of preserving, and send D2D Connection Release request message to UE1, wherein carry the mark of UE2, instruction release is connected with the D2D of UE2; After UE1 receives this D2D Connection Release request message, release is connected with the D2D between UE2.

Further, if D2D RB(Radio Bearer will be revised in D2D group, radio bearer) etc. operation, modification process can be connected by D2D and complete.The amendment realizing D2DRB is connected as by reprovision D2D.

Further, the special controlled entity of D2D also can initiate D2D Connection Release process.When the special controlled entity of D2D finds there is UE(herein for above-mentioned UE2 in D2D group) be no longer applicable to carrying out D2D transmission (such as D2D resource-constrained or UE indicate D2D quality of connection to be deteriorated), then can connect for the D2D being no longer applicable to carrying out D2D transmission (connecting for the D2D between above-mentioned UE2 and UE1), UE1 with UE2 that in notice D2D group, this D2D connection is corresponding discharges this D2D and is connected herein.

Optionally, dispatch more accurately in order to the special controlled entity of D2D can be allowed to perform, eNB can also to D2D special controlled entity feedback D2D link information, the channel quality information of such as UE D2D link, the BSR(Buffer Status Reporting of UE D2D link, buffer region state reporting) information etc.Accordingly, the special controlled entity of D2D according to the D2D link information of eNB feedback, can carry out the D2D communication resource and reshuffles, to dispatch the D2D communication resource.

Optionally, dispatch more accurately in order to the special controlled entity of D2D can be allowed to perform, the UE carrying out D2D communication also can ask the special controlled entity of D2D to carry out resource reconfiguration, such as sends D2D communication resource reconfiguration request message when the D2D connecting channel Quality Down of UE to the special controlled entity of D2D.Accordingly, the special controlled entity of D2D can carry out the D2D communication resource according to the request of UE and reshuffle, to dispatch the resource that D2D communication uses.Certainly, the special controlled entity of D2D also can initiatively carry out the D2D communication resource according to the channel quality information of D2D link of UE feedback and reshuffles.

Optionally, the information that the D2D that the special controlled entity of D2D also can be safeguarded according to it connects, carries out the D2D communication resource and reshuffles, to dispatch the D2D communication resource.Such as, when the special controlled entity of D2D has D2D Connection Release according to the INFORMATION DISCOVERY that its D2D safeguarded connects, the D2D communication resource can be carried out and reshuffle.

It should be noted that, the D2D across PLMN is transmitted, can at H-PLMN(Home PLMN, local plmn) and V-PLMN(Visited PLMN, access PLMN) in introduce the special controlled entity of D2D respectively.When D2D UE be communicate across PLMN time, carry out D2D transmission control by mutually consulting to select a special controlled entity of D2D between the special controlled entity of D2D in the special controlled entity of D2D in H-PLMN and V-PLMN, preferably, control by mutually consulting to select the special controlled entity of D2D of HPLMN to do D2D transmission.Or, also can make an appointment by find or be found UE belong to PLMN in the special controlled entity of D2D carry out D2D transmit control.

See Fig. 7, be the logical architecture after the special controlled entity of introducing D2D that the embodiment of the present invention provides, under off-grid scene, apply this framework and can realize controlling based on the D2D transmission of the special controlled entity of D2D.

So-called off-grid scene (i.e. out of coverage), refers to that UE position does not have the scene of the network coverage.For off-grid scene, introduce in the logical architecture after D2D special controlled entity, the special controlled entity of D2D can be independently logic entity, and it can be realized by independently hardware device, also can embed in the main UE in D2D communication group.D2D group communication under off-grid scene, generally uses private resource, and under this scene, the special controlled entity of D2D can embed the main UE of group leader UE() in.

When the special controlled entity of D2D is separate hardware, the relevant specialized configuration of scheduling in UE list in the pre-configured group of the special controlled entity of D2D, available D2D resource information, D2D group, such as, resource, MCS, power, group RNTI(group RNTI that schedule information sends, RNTI:Radio Network Temporary Identifier, Radio Network Temporary Identifier) etc.The special controlled entity mark of the pre-configured D2D of UE, the D2D control information that participate in group communication in group receive relevant configuration, group RNTI etc.Consider that off-grid scene is mainly applicable to public safety, most probable information configuration mode is: carry out pre-configured in main UE, such as fire alarm disaster relief group, the terminal that this group director uses is preconfigured to main UE, this main UE configures this group member list, and the configuration information such as available D2D resource information, the relevant specialized configuration of the interior scheduling of D2D group.

When the special controlled entity of D2D is embedded in main UE, the relevant specialized configuration of scheduling in UE list in the pre-configured group of the special controlled entity of D2D in main UE, available D2D resource information, D2D group, such as, the resource, MCS, power, group RNTI etc. of schedule information transmission.The pre-configured main UE mark of other UE, the D2D control information that participate in group communication in group receive relevant configuration, group RNTI etc.

The special controlled entity of D2D is responsible for sending group scheduling information based on group RNTI, and schedule information comprises following information:

-dispatch for subframe in which UE send, which UE receives;

-send or/and receive relevant configuration (such as resource, MCS etc.).

In group, UE is according to pre-configured D2D control information, receives D2D dispatch, and the schedule information based on the special controlled entity of D2D determines its behavior in each subframe, and performs relevant transmitting-receiving operation.

Under off-grid scene, the scheme that the special controlled entity of D2D controls D2D transmission is similar with the scheme under net scene.Be positioned at main UE for the special controlled entity of D2D, when after the D2D transmission request that other member D2D UE in group belonging to main UE receives sends, D2D transmission carried out to the member D2D UE in affiliated group and controls.Wherein, D2D transmit request can comprise as front D2D Discovery signal send request, the request of D2D Discovery Signal reception, the request of D2D connection establishment, the request of D2D Connection Release or the request of D2D resource reconfiguration etc., the special controlled entity of D2D in main UE carries out transmission according to the D2D transmission request received to D2D UE and controls, its transmission control program is basic similar, different with the transmission control program of the special controlled entity of D2D under net scene:

Information mutual between other UE in the special controlled entity of D2D in main UE and place group is not transmitted by eNB, but is transmitted by the wireless link between other UE in main UE and place group.The special controlled entity of D2D carries out the relevant information that D2D transmission controls, the relevant specialized configuration of scheduling etc. in UE list in such as group, available D2D resource information, D2D group, be pre-stored within the special controlled entity of D2D, and obtain from network side without the need to the special controlled entity of D2D.

Based on identical technical conceive, the embodiment of the present invention additionally provides the special controlled entity device of a kind of D2D.

See Fig. 8, for the structural representation of the special controlled entity device of D2D that the embodiment of the present invention provides, this terminal equipment can comprise: receiver module 81, control module 82, wherein, control module 82 can comprise further with one of lower unit or from closing: D2D finds that signal sending controling unit 821, D2D find Signal reception control unit 822, D2D connection management unit 823, D2D resource reconfiguration unit 824.The following detailed description of the major function of each module and unit.Management area information is configured with in the special controlled entity device of this D2D.

The D2D transmission request that receiver module 81 sends for the D2D terminal received in the special controlled entity management area of described D2D; Control module 82, for the D2D transmission request received according to receiver module 81, is carried out D2D transmission to the D2D terminal in the special controlled entity management area of described D2D and is controlled.

Concrete, when described D2D transmission request for D2D be found D2D discovery signal that terminal sends send request, D2D finds that signal sending controling unit 821 is found terminal to the D2D that transmission described D2D discovery signal sends request and carries out authentication, after authentication is passed through, determine that D2D finds signal correction configuration information for described D2D is found terminal, and the D2D determined is found that signal correction configuration information sends to described D2D to be found terminal.

Wherein, D2D find signal sending controling unit 821 specifically for: if the CAMEL-Subscription-Information that described D2D is found terminal shows that described D2D is found terminal and allows to be found terminal as D2D, then authentication is passed through.

Further, if D2D finds that signal carries the business indication information needing to carry out D2D discovery in sending request, then D2D find signal sending controling unit 821 specifically for: if the CAMEL-Subscription-Information that described D2D is found terminal shows that described D2D is found terminal and allows to be found terminal as the D2D of the business corresponding to the described business indication information needing to carry out D2D discovery, then authentication is passed through.D2D find signal sending controling unit 821 also for: after authentication is passed through, the business indication information carrying out D2D discovery is needed according to described, obtain the identification code that corresponding business uses in air interface transmission, and send to described D2D to be found terminal the identification code got.

Concrete, when for D2D, D2D transmission request finds that the D2D that terminal sends finds Signal reception request, D2D finds to sending described D2D, Signal reception control unit 822 finds that the D2D of Signal reception request finds that terminal carries out authentication, after authentication is passed through, obtain described D2D and find that the D2D of terminal permission is found to carry out D2D in terminal list and finds the terminal list that signal sends, the D2D of D2D terminal in the terminal list got and/or the terminal list got is found signal correction configuration information, send to and send the D2D discovery terminal that described D2D finds Signal reception request.

Wherein, D2D find Signal reception control unit 822 specifically for: if described D2D finds that the CAMEL-Subscription-Information of terminal shows that described D2D finds that terminal allows to find terminal as D2D, then authentication is passed through.After authentication is passed through, D2D finds that the terminal list that Signal reception control unit 822 gets is: described D2D finds that the D2D of terminal unit contractual is found the terminal being found carrying out in terminal list the transmission of D2D discovery signal allowed in terminal list.

Further, described D2D finds that carrying described D2D in Signal reception request finds that terminal expects the business indication information found.Accordingly, D2D find Signal reception control unit 822 specifically for: if described D2D finds that the CAMEL-Subscription-Information of terminal shows that described D2D finds that terminal allows to find terminal as the D2D of the business corresponding to the described business indication information expecting to find, then authentication is passed through.After authentication is passed through, D2D finds that the terminal list that Signal reception control unit 822 gets is: described D2D finds that the D2D that terminal allows is found in terminal list, is carrying out D2D and is finding that signal sends and the D2D sent finds that signal is the terminal for business corresponding to the described business indication information expecting to find.

Further, described D2D finds to carry the positional information that described D2D finds terminal in Signal reception request.Accordingly, D2D finds that the terminal list that Signal reception control unit 822 gets after authentication is passed through is: described D2D finds that the D2D that terminal allows is found in terminal list, is carrying out D2D and is finding that signal sends and finds that the D2D of Signal reception request finds that the distance of terminal is no more than the terminal of setting threshold with the described D2D of transmission.

Described D2D finds that signal correction configuration information comprises one of following or combination: D2D finds the type of signal, D2D finds that signal sends running time-frequency resource, transmitting power, the modulating-coding mechanism MCS used.

In the D2D connection establishment request that described D2D transmission request sends for D2D terminal, when wherein carrying the identification information of target D2D terminal, D2D connection management unit 823 is send the D2D terminal of described D2D connection establishment request and the resource of described target D2D terminal distribution D2D communication use; Wherein, the resource that the D2D communication distributed uses, for the D2D communication after this D2D connection establishment, or for the D2D communication in setting-up time section.

In the D2D Connection Release request that described D2D transmission request sends for D2D terminal, when wherein carrying the identification information of target D2D terminal, D2D connection management unit 823 indicates the release of described D2D target terminal to be connected with the D2D between the D2D terminal sending the request of described D2D Connection Release.

When the D2D communication resource reconfiguration request that described D2D transmission request sends for D2D terminal, D2D resource reconfiguration module 824 to ask the D2D carrying out resource reconfiguration to connect, redistribute D2D and to communicate the resource of use.

Further, D2D resource reconfiguration module 824 receives the channel quality feedback information that D2D connects, according to the resource reconfiguration process of the channel quality feedback information initiation D2D communication that D2D connects.

The special controlled entity device of above-mentioned D2D can be the independently network equipment, also can be embedded in other network equipment, is such as embedded in base station or is embedded in MME, thus the D2D transmission that can realize under net scene controls.The special controlled entity device of above-mentioned D2D also can be independently equipment, also can be embedded in D2D terminal (the D2D terminal being embedded with the special controlled entity device of D2D is called master terminal), thus the D2D transmission realized under off-grid scene controls.

Based on identical technical conceive, the embodiment of the present invention additionally provides the network equipment being embedded with the special controlled entity device of above-mentioned D2D, such as base station or MME etc.Preferably, the management area, D2D special control point configured in embedded D2D special controlled entity device at least comprises the coverage of two base stations.

Based on identical technical conceive, the embodiment of the present invention additionally provides the D2D terminal being embedded with the special controlled entity device of above-mentioned D2D.Wherein, the D2D end member list of group belonging to described D2D terminal is configured with in embedded D2D special controlled entity device, the control module of this D2D special controlled entity device receives the D2D transmission request of other member D2D terminal transmission in affiliated group according to described D2D terminal, carry out D2D transmission control to the member D2D terminal in affiliated group.

The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims

1. equipment and an equipment D2D transfer control method, is characterized in that, comprising:

2. the method for claim 1, is characterized in that, the D2D that described D2D transmission request is found terminal transmission for D2D finds that signal sends request;

The described D2D that carries out transmits control, specifically comprise: the special controlled entity of described D2D is found terminal to the D2D that transmission described D2D discovery signal sends request and carries out authentication, after authentication is passed through, determine that D2D finds signal correction configuration information for described D2D is found terminal, and the D2D determined is found that signal correction configuration information sends to described D2D to be found terminal.

3. method as claimed in claim 2, is characterized in that, described in carry out authentication, specifically comprise:

If the CAMEL-Subscription-Information that described D2D is found terminal shows that described D2D is found terminal and allows to be found terminal as D2D, then authentication is passed through.

4. method as claimed in claim 2, is characterized in that, described D2D finds that signal carries the business indication information needing to carry out D2D discovery in sending request;

Described authentication of carrying out specifically comprises: if the CAMEL-Subscription-Information that described D2D is found terminal shows that described D2D is found terminal and allows to be found terminal as the D2D of the business corresponding to the described business indication information needing to carry out D2D discovery, then authentication is passed through;

Also comprised by rear in authentication: the special controlled entity of described D2D, according to the described business indication information needing to carry out D2D discovery, obtains the identification code that corresponding business uses in air interface transmission, and sends to described D2D to be found terminal the identification code got.

5. the method for claim 1, is characterized in that, the D2D that described D2D transmission request sends for D2D discovery terminal finds Signal reception request;

The described D2D that carries out transmits control, specifically comprise: to sending described D2D, the special controlled entity of described D2D finds that the D2D of Signal reception request finds that terminal carries out authentication, after authentication is passed through, obtain described D2D and find that the D2D of terminal permission is found to carry out D2D in terminal list and finds the terminal list that signal sends, the D2D of D2D terminal in the terminal list got and/or the terminal list got is found signal correction configuration information, sends to and send the D2D discovery terminal that described D2D finds Signal reception request.

6. method as claimed in claim 5, is characterized in that, described in carry out authentication, specifically comprise:

If described D2D finds that the CAMEL-Subscription-Information of terminal shows that described D2D finds that terminal allows to find terminal as D2D, then authentication is passed through;

The terminal list that authentication gets after passing through is: described D2D finds that the D2D of terminal unit contractual is found the terminal being found carrying out in terminal list the transmission of D2D discovery signal allowed in terminal list.

7. method as claimed in claim 5, is characterized in that, described D2D finds that carrying described D2D in Signal reception request finds that terminal expects the business indication information found;

Described authentication of carrying out specifically comprises: if described D2D finds that the CAMEL-Subscription-Information of terminal shows that described D2D finds that terminal allows to find terminal as the D2D of the business corresponding to the described business indication information expecting to find, then authentication is passed through;

The terminal list that authentication gets after passing through is: described D2D finds that the D2D that terminal allows is found in terminal list, is carrying out D2D and is finding that signal sends and the D2D sent finds that signal is the terminal for business corresponding to the described business indication information expecting to find.

8. method as claimed in claim 5, is characterized in that, described D2D finds to carry the positional information that described D2D finds terminal in Signal reception request;

The terminal list that authentication gets after passing through is: described D2D finds that the D2D that terminal allows is found in terminal list, is carrying out D2D and is finding that signal sends and finds that the D2D of Signal reception request finds that the distance of terminal is no more than the terminal of setting threshold with the described D2D of transmission.

9. the method as described in claim 2 or 5, it is characterized in that, described D2D finds that signal correction configuration information comprises one of following or combination: D2D finds the type of signal, D2D finds that signal sends running time-frequency resource, transmitting power, the modulating-coding mechanism MCS used.

10. the method for claim 1, is characterized in that, the D2D connection establishment request that described D2D transmission request sends for D2D terminal, wherein carries the identification information of target D2D terminal;

The described D2D of carrying out transmits and controls specifically to comprise: the special controlled entity of described D2D is send the D2D terminal of described D2D connection establishment request and the resource of described target D2D terminal distribution D2D communication use; Wherein, the resource that the D2D communication distributed uses, for the D2D communication after this D2D connection establishment, or for the D2D communication in setting-up time section.

11. the method for claim 1, is characterized in that, the D2D Connection Release request that described D2D transmission request sends for D2D terminal, wherein carry the identification information of target D2D terminal;

Described carry out D2D transmission control specifically comprise: the special controlled entity of described D2D indicate described D2D target terminal discharge be connected with the D2D between the D2D terminal sending the request of described D2D Connection Release.

12. the method for claim 1, is characterized in that, the D2D communication resource reconfiguration request that described D2D transmission request sends for D2D terminal;

The described D2D of carrying out transmits and controls specifically to comprise: the special controlled entity of described D2D to ask to carry out resource reconfiguration D2D connect, redistribute the resource of D2D communication use.

13. the method for claim 1, is characterized in that, also comprise:

The special controlled entity of described D2D receives the channel quality feedback information that D2D connects, according to the resource reconfiguration process of the channel quality feedback information initiation D2D communication that D2D connects.

14. the method for claim 1, is characterized in that, the special controlled entity of described D2D is positioned at the main D2D terminal of group, described main D2D terminal are configured with the D2D end member list of group belonging to described main D2D terminal;

The special controlled entity of described D2D receives the D2D transmission request that the D2D terminal in management area, described D2D special control point sends, and is specially:

The D2D transmission request that other member D2D terminal in group belonging to described main D2D terminal receives sends;

The special controlled entity of described D2D carries out D2D transmission to the D2D terminal in the special controlled entity management area of described D2D and controls, and is specially:

Described main D2D terminal is carried out D2D transmission to the member D2D terminal in affiliated group and is controlled.

15. the method for claim 1, is characterized in that, management area, described D2D special control point at least comprises the coverage of two base stations.

16. 1 kinds of special controlled entity devices of D2D, is characterized in that, comprising:

17. devices as claimed in claim 16, is characterized in that, the D2D that described D2D transmission request is found terminal transmission for D2D finds that signal sends request;

Described control module comprises:

D2D finds signal sending controling unit, D2D for sending request transmission described D2D discovery signal is found terminal and carries out authentication, after authentication is passed through, determine that D2D finds signal correction configuration information for described D2D is found terminal, and the D2D determined is found that signal correction configuration information sends to described D2D to be found terminal.

18. devices as claimed in claim 17, is characterized in that, described D2D find signal sending controling unit specifically for, if the CAMEL-Subscription-Information that described D2D is found terminal shows that described D2D is found terminal and allows to be found terminal as D2D, then authentication is passed through.

19. devices as claimed in claim 17, is characterized in that, described D2D finds that signal carries the business indication information needing to carry out D2D discovery in sending request;

Described D2D find signal sending controling unit specifically for, if the CAMEL-Subscription-Information that described D2D is found terminal shows that described D2D is found terminal and allows to be found terminal as the D2D of the business corresponding to the described business indication information needing to carry out D2D discovery, then authentication is passed through;

Described D2D find signal sending controling unit also for, after authentication is passed through, need according to described the business indication information carrying out D2D discovery, obtain the identification code that corresponding business uses in air interface transmission, and send to described D2D to be found terminal the identification code got.

20. devices as claimed in claim 16, is characterized in that, the D2D that described D2D transmission request sends for D2D discovery terminal finds Signal reception request;

Described control module comprises:

D2D finds Signal reception control unit, for finding that the D2D of Signal reception request finds that terminal carries out authentication to sending described D2D, after authentication is passed through, obtain described D2D and find that the D2D of terminal permission is found to carry out D2D in terminal list and finds the terminal list that signal sends, the D2D of D2D terminal in the terminal list got and/or the terminal list got is found signal correction configuration information, sends to and send the D2D discovery terminal that described D2D finds Signal reception request.

21. devices as claimed in claim 20, is characterized in that, described D2D find Signal reception control unit specifically for, if described D2D finds that the CAMEL-Subscription-Information of terminal shows that described D2D finds that terminal allows to find terminal as D2D, then authentication is passed through;

After authentication is passed through, described D2D finds that the terminal list that Signal reception control unit gets is: described D2D finds that the D2D of terminal unit contractual is found the terminal being found carrying out in terminal list the transmission of D2D discovery signal allowed in terminal list.

22. devices as claimed in claim 20, is characterized in that, described D2D finds that carrying described D2D in Signal reception request finds that terminal expects the business indication information found;

Described D2D find Signal reception control unit specifically for, if described D2D finds that the CAMEL-Subscription-Information of terminal shows that described D2D finds that terminal allows to find terminal as the D2D of the business corresponding to the described business indication information expecting to find, then authentication is passed through;

After authentication is passed through, described D2D finds that the terminal list that Signal reception control unit gets is: described D2D finds that the D2D that terminal allows is found in terminal list, is carrying out D2D and is finding that signal sends and the D2D sent finds that signal is the terminal for business corresponding to the described business indication information expecting to find.

23. devices as claimed in claim 20, is characterized in that, described D2D finds to carry the positional information that described D2D finds terminal in Signal reception request;

Described D2D finds that the terminal list that Signal reception control unit gets after authentication is passed through is: described D2D finds that the D2D that terminal allows is found in terminal list, is carrying out D2D and is finding that signal sends and finds that the D2D of Signal reception request finds that the distance of terminal is no more than the terminal of setting threshold with the described D2D of transmission.

24. devices as described in claim 17 or 20, it is characterized in that, described D2D finds that signal correction configuration information comprises one of following or combination: D2D finds the type of signal, D2D finds that signal sends running time-frequency resource, transmitting power, the modulating-coding mechanism MCS used.

25. devices as claimed in claim 16, is characterized in that, the D2D connection establishment request that described D2D transmission request sends for D2D terminal, wherein carry the identification information of target D2D terminal;

Described control module comprises:

D2D connection management unit, the resource of the use that communicates for the D2D terminal for sending the request of described D2D connection establishment and described target D2D terminal distribution D2D; Wherein, the resource that the D2D communication distributed uses, for the D2D communication after this D2D connection establishment, or for the D2D communication in setting-up time section.

26. devices as claimed in claim 16, is characterized in that, the D2D Connection Release request that described D2D transmission request sends for D2D terminal, wherein carry the identification information of target D2D terminal;

Described control module comprises:

D2D connection management unit, is used to indicate the release of described D2D target terminal and is connected with the D2D between the D2D terminal sending the request of described D2D Connection Release.

27. devices as claimed in claim 16, is characterized in that, the D2D communication resource reconfiguration request that described D2D transmission request sends for D2D terminal;

Described control module comprises:

D2D resource reconfiguration module, for ask to carry out resource reconfiguration D2D connect, redistribute the resource that D2D communication uses.

28. devices as claimed in claim 16, is characterized in that, also comprise:

D2D resource reconfiguration module, for receiving the channel quality feedback information that D2D connects, according to the resource reconfiguration process of the channel quality feedback information initiation D2D communication that D2D connects.

29. 1 kinds of network equipments comprising the special controlled entity device of D2D as described in any one of claim 16-28.

30. network equipments as claimed in claim 29, is characterized in that, management area, described D2D special control point at least comprises the coverage of two base stations.

31. 1 kinds of D2D terminals comprising the special controlled entity device of D2D as described in any one of claim 16-29.

32. D2D terminals as claimed in claim 31, is characterized in that, are configured with the D2D end member list of group belonging to described D2D terminal in the D2D special controlled entity device in described D2D terminal;

The control module of the special controlled entity device of the D2D in described D2D terminal specifically for, the D2D transmission request that other member D2D terminal in group belonging to receiving according to described main D2D terminal sends, carries out D2D transmission to the member D2D terminal in affiliated group and controls.