CN104869526B - A kind of communication of device-to-device and its resource allocation methods, equipment - Google Patents

A kind of communication of device-to-device and its resource allocation methods, equipment Download PDF

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Publication number
CN104869526B
CN104869526B CN201510170486.8A CN201510170486A CN104869526B CN 104869526 B CN104869526 B CN 104869526B CN 201510170486 A CN201510170486 A CN 201510170486A CN 104869526 B CN104869526 B CN 104869526B
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ue
d2d
private resource
information
2nd
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CN201510170486.8A
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CN104869526A (en
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全海洋
张惠英
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电信科学技术研究院
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Abstract

The invention discloses a kind of communication of device-to-device and its resource allocation methods, equipment to have ensured D2D communication quality to realize D2D communication by D2D private resource.A kind of device-to-device D2D communication means provided by the invention, comprising: the first user equipment (UE) receives the D2D private resource that the 2nd UE is sent;First UE, which is used, carries out signal transmission between the D2D private resource and the 2nd UE.The present invention is in D2D communication process, first UE receives the D2D private resource that the 2nd UE is sent, progress signal transmission between the D2D private resource and the 2nd UE can be used in first UE, to when the first UE is in outside the covering of base station, D2D private resource can be obtained by the 2nd UE and carry out D2D communication using the D2D private resource and the 2nd UE, and then ensured D2D communication quality.

Description

A kind of communication of device-to-device and its resource allocation methods, equipment

Technical field

The present invention relates to field of communication technology more particularly to a kind of device-to-device (Device to Device, D2D) are logical Letter and its resource allocation methods, equipment.

Background technique

In mobile communication system future development, in order to better meet user demand, D2D discovery (Device to is introduced Device Discovery) mechanism and D2D communicate (Device to Device Communication) mechanism.Off-grid is used Family equipment (User Equipment, UE), if in order to which it can be communicated with network one can be selected for off-grid UE Neighbouring is its interim data in net UE, and this scene is known as user equipment to the relaying (UE-to-Network of network Relay).In current D2D communication, for being in the UE (also referred to as Remote UE) of off-grid situation, D2D communication can only make With the public resource (public resource for D2D communication) being pre-configured before.In this case, whether the business datum of user can It reaches Successful transmissions not guarantee, that is, without the guarantee of service quality (Quality of Service, QoS).

About long term evolution (Long Term Evolvement, LTE) equipment to network (Device to Network, D2N) communication system is described below:

In LTE system, communicating take is the central controlled mode of network, i.e. the uplink and downlink data of UE are all in network It is sent and received under control.Communication between UE and UE is to be forwarded and controlled by network, does not deposit between UE and UE The transmission of the data of UE and network can be referred to as D2N transmission under direct communication link, this mode, as shown in Figure 1.

The close service of D2D is described below.

D2D technology, i.e. terminal direct connection technology, refer to neighbouring terminal can in short range by direct connected link into The mode of row data transmission, does not need to be forwarded by central node (i.e. base station), not need through traditional honeycomb chain yet Road carries out the information transmission between UE.

In third generation collaborative project (3rd Generation Partnership Project, 3GPP), the close service of D2D Including following two major classes:

D2D discovery: UE uses general land wireless access technology (the Evolved Universal of evolution Terrestrial Radio Access, E-UTRA) confirm another UE in its vicinity.For example, D2D UE can be used The service comes the taxi of finding nearby, the friend of searching in its vicinity etc..

D2D communication: UE close to each other, by directly establishing link between two UE, as shown in Fig. 2, in this way will be former This is converted into local direct communication link by the communication link of network transmission, saves a large amount of bandwidth and network efficiency; Or two UE close to each other, it can use direct point-to-point data link to obtain the cheap communication service of stable high speed.Close to clothes Business communication is usually to carry out under network controls or auxiliary, and evolved base station (evolved Node B, eNB) even can It can be to carry out dynamically distributing resource close to the UE of communication for service.

For ease of description, two kinds of Linktypes can be defined:

D2D link: refer to the link directly communicated between equipment and equipment;

D2N link: the link communicated between equipment and network node.

It is divided in addition, participating in D2D discovery/communication UE for two kinds of roles:

D2D sends UE: i.e. transmission D2D discovery/communication information UE;

D2D receives UE: i.e. reception D2D sends discovery/communication information UE that UE is sent.

Be described below UE to network trunk (UE-to-Network Relay) technology.

On the basis of D2D discovery and the communication technology, UE can carry out data with network by way of relaying (Relay) Transmission.It is two kinds that Relay, which is divided to, in D2D system:

UE is known as UE-to-Network Relay by way of relaying UE (Relay UE) and being communicated with network, such as Shown in Fig. 3, the UE2 outside the network coverage with network in order to be communicated, and using UE1 as Relay node, forward oneself by UE1 Uplink and downlink signals.Wherein, the communication between UE1 and UE2 is communicated by D2D and is realized, passes through cellular communication reality between UE1 and network It is existing.

Wherein, at present for the UE not in coverage areas, the D2D resource pool that can be used is by pre-configuration mode Distribution.Also, current D2D communication interface (i.e. interface between the UE of D2D communication) --- the service quality on PC5 interface is Do not guarantee.

D2D is communicated, there are two types of existing resource distribution modes, and one is networks to provide the D2D resource pool of communication, The terminal of D2D communication is shared to use the resource pool, divides without resource, and terminal is belonged to competition and received using these resources Hair, in fact it could happen that loss of data does not guarantee the communication quality of the PC5 interface.

Another is for the D2D communication between the user under the network coverage, and network can distribute dedicated D2D money Source carries out communication use to correlation UE.Under this mode, network is directly dispatched, allocates resources to the UE to be communicated.

In the case of other non-D2D, resource allocation is all the end that resource to be used directly was dispatched or allocated resources in base station The case where holding, carrying out resource transfer not over terminal.So scheduled resource is all that comparison is real-time, dynamic, terminal is connect Receive to use quickly.

In conclusion Remote UE is in outside the covering of base station at present under UE-to-Network Relay scene, only The D2D resource being pre-configured can be used, communication quality cannot also ensure.

Summary of the invention

The embodiment of the invention provides a kind of communication of device-to-device and its resource allocation methods, equipment, to pass through D2D Private resource realizes D2D communication, has ensured D2D communication quality.

A kind of device-to-device D2D communication means provided in an embodiment of the present invention, comprising:

First user equipment (UE) receives the D2D private resource that the 2nd UE is sent;

First UE, which is used, carries out signal transmission between the D2D private resource and the 2nd UE.

In this way, the first UE receives the D2D private resource that the 2nd UE is sent, and the first UE can in D2D communication process Signal transmission is carried out between the D2D private resource and the 2nd UE to use, thus when the first UE is in outside the covering of base station, it can To obtain D2D private resource by the 2nd UE and carry out D2D communication using the D2D private resource and the 2nd UE, and then ensure D2D communication quality.

Preferably, before the first UE receives the D2D private resource that the 2nd UE is sent, this method further include:

First UE carries out the mass measurement of the PC5 interface between the first UE and the 2nd UE, and reports survey Result is measured to the 2nd UE;Alternatively,

First UE carries out the mass measurement of the PC5 interface between the first UE and the 2nd UE, and according to survey Amount result sends D2D private resource request message when determination needs D2D private resource, to the 2nd UE.

Preferably, when the first UE report measurement results give two UE, while also reporting the first UE's The information of buffer status report BSR;

Alternatively, when the first UE sends D2D private resource request message to the 2nd UE, the D2D private resource The information of the BSR of the first UE is also carried in request message.

A kind of device-to-device D2D communication means provided in an embodiment of the present invention, comprising:

2nd UE sends D2D private resource request message to base station, and receive that base station issues carries D2D private resource The notice of information;

The D2D dedicated resource information that 2nd UE is issued according to the base station issues D2D private resource letter to the first UE Breath.

In this way, the 2nd UE in D2D communication can obtain D2D private resource from base station, and according to the base station The D2D dedicated resource information issued issues D2D dedicated resource information to the first UE, so that the first UE and the 2nd UE can be with D2D communication is realized by the D2D private resource that obtains from base station, and when the first UE is in outside the covering of base station, the first UE can be with D2D private resource is obtained by the 2nd UE and carries out D2D communication using the D2D private resource and the 2nd UE, and then has ensured D2D Communication quality.

Preferably, being connect in the D2D private resource request message including the PC5 between the 2nd UE and the first UE The relevant information of mouth.

It needs to pass between the 2nd UE and the first UE preferably, the relevant information of the PC5 interface includes at least The information of defeated business datum amount.

Preferably, the relevant information of the PC5 interface further include:

The obtained measurement result of mass measurement or described second of the PC5 interface is carried out by the 2nd UE The received obtained measurement result of mass measurement that the PC5 interface is carried out by the first UE of UE.

Preferably, the 2nd UE includes: to the trigger condition that base station sends D2D private resource request message

2nd UE is determined according to the measurement result to be needed to send D2D private resource request message to base station;Alternatively,

2nd UE receives the D2D private resource request message that at least one described first UE is sent.

Preferably, when the 2nd UE receives the D2D private resource request message that multiple first UE are sent, described the The D2D private resource request message that two UE are sent according to the multiple first UE is unified to send the request of D2D private resource to base station Message.

Preferably, needing to send the request of D2D private resource to base station when the 2nd UE is determined according to the measurement result When message, the 2nd UE is determined according to the measurement result and the information of the buffer status report BSR of the first UE It needs to send D2D private resource request message to base station;

Alternatively, when the 2nd UE receives the D2D private resource request message that the first UE is sent, the first UE The information of the BSR of the first UE is also carried in the D2D private resource request message of transmission.

Preferably, to the first UE to issue D2D dedicated for the D2D dedicated resource information that is issued according to the base station of the 2nd UE Resource information, comprising:

When there is only one with the 2nd UE carry out D2D communication a UE when, the 2nd UE is directly by the base The D2D dedicated resource information that station issues is transmitted to the first UE, alternatively, demand of the 2nd UE according to the first UE, And the D2D dedicated resource information that the base station issues, D2D dedicated resource information is redefined, and the D2D redefined is special The first UE is sent to resource information;

Alternatively, when there are multiple with the 2nd UE carry out a UE of D2D communication when, the 2nd UE is according to every 1 the It is dedicated to redefine the corresponding D2D of every one first UE for the D2D dedicated resource information that the demand of one UE and the base station issue Resource information, and each D2D dedicated resource information redefined is sent to corresponding first UE.

Preferably, this method further include:

2nd UE is used to the first UE and is issued D2D dedicated resource information, and signal biography is carried out between the first UE It is defeated.

A kind of resource allocation methods provided in an embodiment of the present invention, comprising:

Receive the D2D private resource request message that the UE of D2D communication is sent;

It is the D2D allocation of communications D2D private resource according to the D2D private resource request message, and this will be carried The notice of D2D dedicated resource information is sent to the UE.

In this way, when the D2D private resource request message that the UE for receiving D2D communication is sent, it is special according to the D2D It is the D2D allocation of communications D2D private resource, and the notice that the D2D dedicated resource information will be carried with resource request message Be sent to the UE, distribute D2D private resource so as to the UE that communicates for D2D so that UE can be used D2D private resource into Row D2D communication, has ensured D2D communication quality.

Preferably, the notice further include: the instruction information of the effective time of the D2D private resource.

A kind of user equipment (UE) provided in an embodiment of the present invention, comprising:

First unit when a UE for communicating as the UE as D2D, receives the dedicated money of D2D that the 2nd UE is sent Source;

Second unit, for using progress signal transmission between the D2D private resource and the 2nd UE.

Preferably, being also used to before the first unit receives the D2D private resource that the 2nd UE is sent:

The mass measurement of the PC5 interface between the first UE and the 2nd UE is carried out, and report measurement results are to institute State the 2nd UE;Alternatively,

The mass measurement of the PC5 interface between the first UE and the 2nd UE is carried out, and according to measurement result when true When needing D2D private resource surely, D2D private resource request message is sent to the 2nd UE.

Preferably, when the first unit report measurement results give two UE, while also reporting the first UE Buffer status report BSR information;

Alternatively, when the first unit sends D2D private resource request message to the 2nd UE, the dedicated money of the D2D The information of the BSR of the first UE is also carried in the request message of source.

Preferably, further include:

Third unit, for sending D2D private resource request message to base station, and receive that base station issues carries D2D The notice of dedicated resource information;

Unit the 4th, the D2D dedicated resource information for being issued according to the base station are logical to D2D is carried out with the equipment Another UE of letter issues D2D dedicated resource information.

A kind of user equipment (UE) provided in an embodiment of the present invention, comprising:

Third unit when two UE for communicating as the UE as D2D, sends the request of D2D private resource to base station Message, and receive the notice for carrying D2D dedicated resource information that base station issues;

Unit the 4th, the D2D dedicated resource information for being issued according to the base station are logical to D2D is carried out with the equipment First UE of letter issues D2D dedicated resource information.

Preferably, being connect in the D2D private resource request message including the PC5 between the 2nd UE and the first UE The relevant information of mouth.

It needs to pass between the 2nd UE and the first UE preferably, the relevant information of the PC5 interface includes at least The information of defeated business datum amount.

Preferably, the relevant information of the PC5 interface further include:

The obtained measurement result of mass measurement or described second of the PC5 interface is carried out by the 2nd UE The received obtained measurement result of mass measurement that the PC5 interface is carried out by the first UE of UE.

Preferably, the third unit includes: to the trigger condition that base station sends D2D private resource request message

It is determined according to the measurement result and needs to send D2D private resource request message to base station;Alternatively,

Receive the D2D private resource request message that at least one described first UE is sent.

Preferably, when the third unit receives the D2D private resource request message that multiple first UE are sent, it is described The D2D private resource request message that third unit is sent according to the multiple first UE is unified to send D2D private resource to base station Request message.

Preferably, the third unit is according to the buffer status report BSR's of the measurement result and the first UE Information determines and needs to send D2D private resource request message to base station;

Alternatively, when the third unit receives the D2D private resource request message that the first UE is sent, also from described The information of the BSR of the first UE is obtained in the D2D private resource request message that first UE is sent.

Preferably, Unit the 4th is specifically used for:

When there is only one with the 2nd UE carries out a UE of D2D communication, the D2D that directly issues the base station Dedicated resource information is transmitted to the first UE, alternatively, the D2D issued according to the demand of the first UE and the base station Dedicated resource information, redefines D2D dedicated resource information, and the D2D dedicated resource information redefined is sent to described First UE;

Alternatively, when there are multiple UE for carrying out D2D communication with the 2nd UE, according to the need of every one first UE It asks and D2D dedicated resource information that the base station issues, redefines the corresponding D2D dedicated resource information of every one first UE, And each D2D dedicated resource information redefined is sent to corresponding first UE.

Preferably, Unit the 4th is also used to: using D2D dedicated resource information is issued to the first UE, with described first Signal transmission is carried out between UE.

A kind of resource allocation apparatus provided in an embodiment of the present invention, comprising:

Receiving unit, the D2D private resource request message that the UE for receiving D2D communication is sent;

Allocation unit, for being the D2D allocation of communications D2D private resource according to the D2D private resource request message, And the notice for carrying the D2D dedicated resource information is sent to the UE.

Preferably, the notice further include: the instruction information of the effective time of the D2D private resource.

Detailed description of the invention

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

Fig. 2 is existing D2D discovery/communication construction schematic diagram;

Fig. 3 is existing UE-to-Network Relay communication construction schematic diagram;

Fig. 4 is a kind of flow diagram of D2D communication means provided in an embodiment of the present invention;

Fig. 5 is the flow diagram of another kind D2D communication means provided in an embodiment of the present invention;

Fig. 6 is a kind of flow diagram of resource allocation methods provided in an embodiment of the present invention;

Fig. 7 is the overall flow schematic diagram of D2D provided in an embodiment of the present invention communication;

Fig. 8 is the D2D communication process in the case that Relay UE provided in an embodiment of the present invention carries out transmission quality monitoring Schematic diagram;

Fig. 9 is the D2D communication process in the case that Remote UE provided in an embodiment of the present invention carries out transmission quality monitoring Schematic diagram;

Figure 10 is that Relay UE provided in an embodiment of the present invention is reassigned (single Remote UE) to D2D private resource In the case where D2D communication process schematic diagram;

Figure 11 is that Relay UE provided in an embodiment of the present invention is reassigned (more Remote UE) to D2D private resource In the case where D2D communication process schematic diagram;

Figure 12 is a kind of structural schematic diagram of user equipment provided in an embodiment of the present invention;

Figure 13 is the structural schematic diagram of another user equipment provided in an embodiment of the present invention;

Figure 14 is a kind of structural schematic diagram of resource allocation apparatus provided in an embodiment of the present invention;

Figure 15 is the structural schematic diagram of the third user equipment provided in an embodiment of the present invention;

Figure 16 is the structural schematic diagram of another resource allocation device provided in an embodiment of the present invention.

Specific embodiment

The embodiment of the invention provides a kind of communication of device-to-device and its resource allocation methods, equipment, to pass through D2D Private resource realizes D2D communication, has ensured D2D communication quality.

The embodiment of the present invention give it is a kind of by Relay UE to network obtain D2D private resource for Relay UE with The scheme communicated between Remote UE, to guarantee that Remote UE obtains the service of high quality.Specifically, Relay UE with After Remote UE establishes D2D connection, when measurement discovery Relay UE is compared with the communication quality of the interface between Remote UE When poor, Relay UE (i.e. carries out the special of D2D communication to network application D2D private resource between Relay UE and the Remote UE With resource), and notify the D2D private resource distributed to give Remote UE, the D2D private resource is used later and is somebody's turn to do Remote UE is communicated, and communication quality is promoted.Wherein, the Relay UE is the UE in the network coverage, and can Think that the data of Remote UE transfer Remote UE to network side, help Remote UE to realize the UE with network-side communication.

Following present invention the first UE as described in the examples, it can be understood as Remote UE, the 2nd UE, it can be with It is interpreted as Relay UE.

Referring to fig. 4, in the side Remote UE, a kind of device-to-device D2D communication means provided in an embodiment of the present invention, packet Include step:

S101, the first user equipment (UE) receive the D2D private resource that the 2nd UE is sent;

S102, the first UE, which are used, carries out signal transmission between the D2D private resource and the 2nd UE.

In this way, the first UE receives the D2D private resource that the 2nd UE is sent, and the first UE can in D2D communication process Signal transmission is carried out between the D2D private resource and the 2nd UE to use, thus when the first UE is in outside the covering of base station, it can To obtain D2D private resource by the 2nd UE and carry out D2D communication using the D2D private resource and the 2nd UE, and then ensure D2D communication quality.

Preferably, before the first UE receives the D2D private resource that the 2nd UE is sent, this method further include:

First UE carries out the mass measurement of the PC5 interface between the first UE and the 2nd UE, and reports survey Result is measured to the 2nd UE, so that the 2nd UE can judge whether to need to send to network side according to the measurement result D2D private resource request message;Alternatively,

First UE carries out the mass measurement of the PC5 interface between the first UE and the 2nd UE, and according to survey Amount result sends D2D private resource request message when determination needs D2D private resource, to the 2nd UE, so as to touch It sends out the 2nd UE and sends D2D private resource request message to network side.

Preferably, when the first UE report measurement results give two UE, while also reporting the first UE's The information of buffer status report (Buffer Status Reports, BSR), the information of the BSR can assist the 2nd UE judgement be It is no to need to send D2D private resource request message to network side;

Alternatively, when the first UE sends D2D private resource request message to the 2nd UE, the D2D private resource The information of the BSR of the first UE is also carried in request message, the information of the BSR can receive the first UE in the 2nd UE and send D2D private resource request message when, auxiliary the 2nd UE further determine whether need to network side send D2D private resource ask Seek message.

Correspondingly, referring to Fig. 5, in the side Relay UE, a kind of device-to-device D2D communication party provided in an embodiment of the present invention Method, comprising steps of

S201, the 2nd UE send D2D private resource request message to base station, and receive that base station issues to carry D2D special With the notice of resource information;

It is dedicated to issue D2D to the first UE for the D2D dedicated resource information that S202, the 2nd UE are issued according to the base station Resource information.

In this way, the 2nd UE in D2D communication can obtain D2D private resource from base station, and according to the base station The D2D dedicated resource information issued issues D2D dedicated resource information to the first UE, so that the first UE and the 2nd UE can be with D2D communication is realized by the D2D private resource that obtains from base station, and when the first UE is in outside the covering of base station, the first UE can be with D2D private resource is obtained by the 2nd UE and carries out D2D communication using the D2D private resource and the 2nd UE, and then has ensured D2D Communication quality.

Preferably, being connect in the D2D private resource request message including the PC5 between the 2nd UE and the first UE The relevant information of mouth, to D2D allocation of communications D2D private resource of the assistant base station between the 2nd UE and the first UE.

It needs to pass between the 2nd UE and the first UE preferably, the relevant information of the PC5 interface includes at least The information of defeated business datum amount, the information for example: the portfolio size information on PC5 interface;One Relay UE correspondence is more It may include the summation information of the portfolio of multiple Remote UE in the case where a Remote UE.

Preferably, the relevant information of the PC5 interface further include:

The obtained measurement result of mass measurement or described second of the PC5 interface is carried out by the 2nd UE The received obtained measurement result of mass measurement that the PC5 interface is carried out by the first UE of UE.

Wherein, the measurement result, for example, received signal power measurement result, Block Error Rate (BLock Error Rate, BLER), and/or the information such as interfering signal power measurement result.

Preferably, the 2nd UE includes: to the trigger condition that base station sends D2D private resource request message

2nd UE is determined according to the measurement result to be needed to send D2D private resource request message to base station;Alternatively,

2nd UE receives the D2D private resource request message that at least one described first UE is sent.

Preferably, when the 2nd UE receives the D2D private resource request message that multiple first UE are sent, described the The D2D private resource request message that two UE are sent according to the multiple first UE is unified to send the request of D2D private resource to base station Message.In this way, can economize on resources.

Preferably, needing to send the request of D2D private resource to base station when the 2nd UE is determined according to the measurement result When message, the 2nd UE is determined according to the measurement result and the information of the buffer status report BSR of the first UE It needs to send D2D private resource request message to base station;

Alternatively, when the 2nd UE receives the D2D private resource request message that the first UE is sent, the first UE The information of the BSR of the first UE is also carried in the D2D private resource request message of transmission.

Preferably, to the first UE to issue D2D dedicated for the D2D dedicated resource information that is issued according to the base station of the 2nd UE Resource information, comprising:

When there is only one with the 2nd UE carry out D2D communication a UE when, the 2nd UE is directly by the base The D2D dedicated resource information that station issues is transmitted to the first UE, alternatively, demand of the 2nd UE according to the first UE, And the D2D dedicated resource information that the base station issues, D2D dedicated resource information is redefined, and the D2D redefined is special The first UE is sent to resource information;

Alternatively, when there are multiple with the 2nd UE carry out a UE of D2D communication when, the 2nd UE is according to every 1 the It is dedicated to redefine the corresponding D2D of every one first UE for the D2D dedicated resource information that the demand of one UE and the base station issue Resource information, and each D2D dedicated resource information redefined is sent to corresponding first UE.

That is, in the embodiment of the present invention, when there are multiple Remote UE by a Relay UE the case where, Relay UE can unify application D2D private resource, and after acquisition, Relay UE redistributes D2D according to the demand of each Remote UE Private resource, and the resource of reassignment is handed down to Remote UE.

Preferably, this method further include:

2nd UE is used to the first UE and is issued D2D dedicated resource information, and signal biography is carried out between the first UE It is defeated.

Referring to Fig. 6, in base station side, correspondingly, a kind of resource allocation methods provided in an embodiment of the present invention, comprising steps of

The D2D private resource request message that S301, the UE for receiving D2D communication are sent;

It may include that the information such as measurement quality, the BSR of PC5 interface (are not limited in the D2D private resource request message These information), it is the D2D allocation of communications D2D private resource of UE that these information, which can assist network side,.

S302, according to the D2D private resource request message be the D2D allocation of communications D2D private resource, and will carry There is the notice of the D2D dedicated resource information to be sent to the UE.

In this way, when the D2D private resource request message that the UE for receiving D2D communication is sent, it is special according to the D2D It is the D2D allocation of communications D2D private resource, and the notice that the D2D dedicated resource information will be carried with resource request message Be sent to the UE, distribute D2D private resource so as to the UE that communicates for D2D so that UE can be used D2D private resource into Row D2D communication, has ensured D2D communication quality.

Preferably, the notice further include: the instruction information of the effective time of the D2D private resource.I.e. the present invention is real Apply in example, network side can be allocated when distributing D2D private resource by semi-static mode, distribution it is resource continuous A period of time recycling, it can the effective period of time of specified resource.

It should be understood that point of D2D private resource and D2D private resource in the prior art in the embodiment of the present invention With mode difference, since it is considered that Relay UE is transmitted to the factors such as the time delay of Remote UE, base station is using semi-static mode point With D2D private resource, and the resource after some specific time can be distributed, such as the resource after 20ms, and needed specified The effective time of resource.Special radio network temporary identifier (Radio Network Temporary can be used in base station Identity, RNTI) (RNTI newly defined) carry out such resource allocation, high-level signaling configuration mode biography also can be used Defeated relevant resource gives Relay UE.Relay UE can reallocate to private resource, specify the transmission money of Remote UE Source and reception resource, and it is sent to Remote UE.

Referring to Fig. 7, the overall flow of D2D communication provided in an embodiment of the present invention includes:

Step S701:Remote UE and Relay UE have built up the connection of D2D communication, and start to carry out business datum Transmission.

Step S702:Remote UE or Relay UE carries out mass measurement to PC5 interface, and by Remote UE or Measurement quality of the Relay UE based on PC5 interface, judges whether that D2D private resource is needed to promote transmission quality.

Step S703: if determination needs D2D private resource in step S702, request distribution D2D dedicated to network side Resource, wherein may include the distribution resource information to be referred to.

Step S704: the D2D private resource request message that network is sent according to Relay UE, distribution D2D private resource are given The Relay UE.

The D2D private resource received is handed down to Remote UE by step S705:Relay UE.Further, Relay UE The D2D private resource received can be reassigned, then issue Remote UE.

The D2D private resource newly configured is begun to use to be communicated between step S706:Relay UE and Remote UE.

The introduction of several specific embodiments is given below.

Embodiment 1:Relay UE monitors the communication quality of PC5 interface, and judges whether to need dedicated to network application D2D Resource.

The process of the embodiment is as shown in figure 8, specifically include:

Step S801:Remote UE and Relay UE have built up the connection of D2D communication, and start to carry out business datum Transmission.

Step S802:Relay UE to PC5 interface carry out mass measurement, obtained measurement result for example including BLER, and/ Or uplink signal receives power and/or uplink interference power etc..

Step S803:Relay UE is counted according to the measurement result in step S802 determines that PC5 interface communication quality compares Difference, then to network side send D2D private resource request message, wherein can carry quality measurements, service related information, And/or the information such as caching (buffer) occupancy situation.

Wherein, Relay UE is counted according to the measurement result in step S802 determines that PC5 interface communication quality is poor, example Such as, Relay UE is compared according to the measurement result in step S802 with preset dependent threshold, is determined according to comparison result PC5 interface communication quality is poor.

Step S804: network is according to the request message of Relay UE, and distribution D2D private resource is to the Relay UE.

The D2D private resource received is handed down to Remote UE by step S805:Relay UE.

The D2D private resource newly configured is begun to use to be communicated between step S806:Relay UE and Remote UE.

Embodiment 2:Remote UE determines that the communication quality of PC5 interface is poor, and is reported to Relay UE triggering Relay UE is to network application D2D private resource.

The process of the embodiment is as shown in Figure 9, comprising:

Step S901: identical as the step S801 in embodiment 1, i.e. Remote UE and Relay UE have built up D2D and lead to The connection of letter, and start to carry out business data transmission.

Step S902:Remote UE carries out mass measurement to PC5 interface, such as progress BLER and/or downlink signal connect Receive power and/or the measurement of downlink jamming power etc..

Step S903: when the measurement result that Remote UE is obtained reaches certain condition, such as measurement of correlation lower than pre- gating Limit, or be higher than pre-determined threshold, then it initiates measurement and reports, measurement event or measurement result are reported to Relay UE.

Step S904:Relay UE knows PC5 interface communication matter according to the measurement message content reported in step S903 Measure it is poor, then to network side request distribution D2D private resource, i.e., to network side send D2D private resource request message, wherein It may include the information such as quality measurements, service related information, and/or buffer occupancy situation.

Step S905: network is according to the request message of Relay UE, and distribution D2D private resource is to the Relay UE.

The D2D private resource received is handed down to Remote UE by step S906:Relay UE.

The D2D private resource newly configured is begun to use to be communicated between step S907:Relay UE and Remote UE.

It should be understood that Remote UE can also give the information reporting of BSR to Relay UE before step S904, The relevant information that Remote UE is reported also is transmitted to base station as D2D private resource in step S904 and distributed by Relay UE Reference use.

Embodiment 3:

In example 2, Remote UE oneself according to measurement result can also judge needs when executing step S902 D2D private resource directly to Relay UE application D2D private resource, i.e., it is special to send D2D to Relay UE in step S903 With resource request message, wherein carry measurement result, Remote UE and Relay UE PC5 interface on the information such as BSR.Afterwards Continuous step is same as Example 2.

Embodiment 4: the explanation of the measurement about PC5 interface.

Currently, the measurement on PC5 interface only has S-RSRP, i.e., the survey of the Reference Signal Received Power carried out to synchronization signal Amount.In addition to S-RSRP is measured, for that, in the quality monitoring process of PC5 interface, can also be defined in embodiment 1 and embodiment 2 The reference signal of BLER measurement (uplink, downlink are separated) and/or PC5 interface in new measurement, such as PC5 interface receives matter Measure (Reference Signal Receiving Quality, RSRQ) measurement etc..

When whithin a period of time, S-RSRP is consistently less than preset S-RSRP thresholding or BLER be persistently higher than it is preset BLER thresholding and/or RSRQ are persistently higher than preset RSRQ thresholding, then can trigger D2D private resource request process.

Embodiment 5:

The D2D resource of distribution is a semi-persistent resource, i.e., will not dynamically change in real time, and being primarily due to base station cannot be straight Scheduling Remote UE is met, the transfer of Relay UE can generate time delay, and dynamic dispatching, which will cause resource failed, leads to the wasting of resources. So the semi-persistent resource method of salary distribution can be used.In view of transfer time delay, the D2D private resource of distribution can be some it is specific when The resource after such as 20ms after length.Base station can be used special RNTI and (for example define new RNTI, SL-Relay RNTI) carry out such resource allocation, also can be used high-level signaling configuration mode transmit relevant D2D private resource to Relay UE.Relay UE can reallocate to D2D private resource, specify the transmission resource of Remote UE and receive money Source, and it is sent to Remote UE.The distribution of resource can specify period or specified period to carry out using and returning for resource It receives.It after private resource recycling, can restore to be communicated using original pre-allocated recourses, and wait point of next private resource Match.If the communication quality of PC5 interface restores or improves after the recycling of D2D private resource, the dedicated money of D2D can also be terminated The request in source, the pre-allocated recourses before use.Can not reallocated the dedicated money of D2D by the specific message informing network of transmission Source.

Embodiment 6:

When thering is multiple Remote UE and the same Relay UE to carry out D2D communication, if wherein have 2 or 2 with On Remote UE require D2D private resource, then Relay UE can apply for D2D private resource together, and again by it Distribute to each Remote UE.But (broadcast is similar to) when being handed down to each Remote UE by same message, in the message It needs to carry the identification information of Remote UE and distributes to the dedicated resource information of the Remote UE, i.e., carried in the message The corresponding relationship of the mark and D2D dedicated resource information of Remote UE.The case where for multiple Remote UE, Relay UE can To use a piece of news to issue, multiple messages also can be used and issue respectively, it, can be with if notify different Remote UE respectively The mark of the Remote UE is not carried, directly notifies the information of the D2D private resource distributed for the Remote UE to this Remote UE。

Embodiment 7:

The embodiment mainly illustrates that Relay UE can reassign the D2D private resource that base station issues, then will weigh The resource of distribution issues Remote UE.

Referring to Figure 10, D2D communication process provided in this embodiment includes:

Step S1001:Remote UE and Relay UE have built up the connection of D2D communication, and start to carry out business datum Transmission.

Step S1002:Remote UE or Relay UE to PC5 interface carry out mass measurement, and Remote UE or Measurement quality of the Relay UE based on PC5 interface, judges whether that D2D private resource is needed to promote transmission quality.

Step S1003: if step S1002, which is determined, needs D2D private resource, Relay UE requests to distribute to network side D2D private resource, wherein may include the distribution D2D private resource information to be referred to.

Step S1004: the D2D private resource request message that network is sent according to Relay UE, distribution D2D private resource are given The Relay UE.

Step S1005:Relay UE redistributes the D2D private resource received, and specifically, Relay UE can be with The case where according to Relay UE and Remote UE two-way BSR, divides the D2D private resource that network distributes, a part Leave Relay UE oneself use for, another part is used to Remote UE, to avoid between Relay UE and Remote UE Send resource contention when signal.

The resource of reassignment is handed down to Remote UE by step S1006:Relay UE.

The D2D private resource newly configured is begun to use (to reassign between step S1007:Relay UE and Remote UE Resource) communicated.

Embodiment 8:

The embodiment mainly illustrates that Relay UE can reassign the D2D private resource that base station issues, then will weigh The resource of distribution issues multiple Remote UE that D2D communication is carried out with the Relay UE.

Referring to Figure 11, D2D communication process provided in this embodiment includes:

Step S111:Remote UE1 and Relay UE have built up the connection of D2D communication, and start to carry out business datum Transmission.

Step S111a:Remote UE2 and Relay UE have built up the connection of D2D communication, and start carry out business number According to transmission.

Above step S111, S111a can carry out simultaneously.

Step S112:Remote UE1 or Relay UE to PC5 interface carry out mass measurement, and Remote UE1 or Measurement quality of the Relay UE based on PC5 interface, judges whether that D2D private resource is needed to promote transmission quality.

S112a:Remote UE2 or Relay UE carry out mass measurement, and Remote UE2 or Relay to PC5 interface Measurement quality of the UE based on PC5 interface, judges whether that D2D private resource is needed to promote transmission quality.

Above step S112, S112a can carry out simultaneously.

Step S113: needing D2D private resource if determined in step S112 and/or S112a, and Relay UE is to network Side request distribution D2D private resource, wherein may include the distribution D2D private resource information to be referred to.

Wherein, in the case where more Remote UE, the information of the PC5 interface of multiple Remote UE can be provided to net Network, as the distribution D2D private resource information to be referred to.

The information of PC5 interface may include the BSR and Relay of the measurement result of PC5 interface, multiple Remote UE The information such as the BSR of UE.

Further Relay UE can be handled the BSR of multiple Remote UE, such as by all Remote's BSR is added together to report summation.

Step S114: the D2D private resource request message that network is sent according to Relay UE, distribution D2D private resource are given The Relay UE.

Step S115:Relay UE redistributes the D2D private resource received, to avoid Relay UE and Conflict is sent between Remote UE.

Preferably, Relay UE is according to the BSR of each Remote UE and to issue the data volume of the Remote UE, come Redistribute D2D private resource.

Again the D2D private resource for Remote UE1 distribution is handed down to Remote UE1 by step S116:Relay UE.

Again the D2D private resource for Remote UE2 distribution is handed down to Remote by step S116a:Relay UE UE2。

Above step S116, S116a can carry out simultaneously.

The D2D private resource newly configured is begun to use to carry out D2D between step S117:Relay UE and Remote UE logical Letter.

Referring to Figure 12, a kind of user equipment (UE) provided in an embodiment of the present invention, when the UE is as Remote UE, comprising:

When a UE for communicating as the UE as D2D, it is dedicated to receive the D2D that the 2nd UE is sent for first unit 11 Resource;

Second unit 12, for using progress signal transmission between the D2D private resource and the 2nd UE.

Preferably, being also used to before the first unit receives the D2D private resource that the 2nd UE is sent:

The mass measurement of the PC5 interface between the first UE and the 2nd UE is carried out, and report measurement results are to institute State the 2nd UE;Alternatively,

The mass measurement of the PC5 interface between the first UE and the 2nd UE is carried out, and according to measurement result when true When needing D2D private resource surely, D2D private resource request message is sent to the 2nd UE.

Preferably, when the first unit report measurement results give two UE, while also reporting the first UE Buffer status report BSR information;

Alternatively, when the first unit sends D2D private resource request message to the 2nd UE, the dedicated money of the D2D The information of the BSR of the first UE is also carried in the request message of source.

Preferably, referring to Figure 13, when the UE is as Relay UE, further includes:

Third unit 21, for sending D2D private resource request message to base station, and receive that base station issues carries The notice of D2D dedicated resource information;

4th unit 22, the D2D dedicated resource information for being issued according to the base station carry out D2D to the equipment Another UE of communication issues D2D dedicated resource information.

Same UE i.e. provided in an embodiment of the present invention, that is, have the function of Remote UE provided in an embodiment of the present invention, also Has the function of Relay UE provided in an embodiment of the present invention.

Referring to Figure 13, a kind of user equipment (UE) provided in an embodiment of the present invention, when the UE is as Relay UE, comprising:

Third unit 21 when two UE for communicating as the UE as D2D, sends D2D private resource to base station and asks Message is sought, and receives the notice for carrying D2D dedicated resource information that base station issues;

4th unit 22, the D2D dedicated resource information for being issued according to the base station carry out D2D to the equipment First UE of communication issues D2D dedicated resource information.

Preferably, being connect in the D2D private resource request message including the PC5 between the 2nd UE and the first UE The relevant information of mouth.

It needs to pass between the 2nd UE and the first UE preferably, the relevant information of the PC5 interface includes at least The information of defeated business datum amount.

Preferably, the relevant information of the PC5 interface further include:

The obtained measurement result of mass measurement or described second of the PC5 interface is carried out by the 2nd UE The received obtained measurement result of mass measurement that the PC5 interface is carried out by the first UE of UE.

Preferably, the third unit includes: to the trigger condition that base station sends D2D private resource request message

It is determined according to the measurement result and needs to send D2D private resource request message to base station;Alternatively,

Receive the D2D private resource request message that at least one described first UE is sent.

Preferably, when the third unit receives the D2D private resource request message that multiple first UE are sent, it is described The D2D private resource request message that third unit is sent according to the multiple first UE is unified to send D2D private resource to base station Request message.

Preferably, the third unit is according to the buffer status report BSR's of the measurement result and the first UE Information determines and needs to send D2D private resource request message to base station;

Alternatively, when the third unit receives the D2D private resource request message that the first UE is sent, also from described The information of the BSR of the first UE is obtained in the D2D private resource request message that first UE is sent.

Preferably, Unit the 4th is specifically used for:

When there is only one with the 2nd UE carries out a UE of D2D communication, the D2D that directly issues the base station Dedicated resource information is transmitted to the first UE, alternatively, the D2D issued according to the demand of the first UE and the base station Dedicated resource information, redefines D2D dedicated resource information, and the D2D dedicated resource information redefined is sent to described First UE;

Alternatively, when there are multiple UE for carrying out D2D communication with the 2nd UE, according to the need of every one first UE It asks and D2D dedicated resource information that the base station issues, redefines the corresponding D2D dedicated resource information of every one first UE, And each D2D dedicated resource information redefined is sent to corresponding first UE.

Preferably, Unit the 4th is also used to: using D2D dedicated resource information is issued to the first UE, with described first Signal transmission is carried out between UE.

Referring to Figure 14, in base station side, a kind of resource allocation apparatus provided in an embodiment of the present invention, comprising:

Receiving unit 31, the D2D private resource request message that the UE for receiving D2D communication is sent;

Allocation unit 32, for being the dedicated money of the D2D allocation of communications D2D according to the D2D private resource request message Source, and the notice for carrying the D2D dedicated resource information is sent to the UE.

Preferably, the notice further include: the instruction information of the effective time of the D2D private resource.

Referring to Figure 15, the third user equipment provided in an embodiment of the present invention, comprising:

Processor 600, when the UE is as Remote UE, executes following mistake for reading the program in memory 620 Journey:

It controls transceiver 610 and receives the D2D private resource that the 2nd UE is sent;

It controls transceiver 610 and uses progress signal transmission between the D2D private resource and the 2nd UE.

Preferably, this method is also before processor 600 controls the D2D private resource that transceiver 610 receives the 2nd UE transmission Include:

The mass measurement of the PC5 interface between the first UE and the 2nd UE is carried out, and controls transceiver 610 and reports Measurement result gives the 2nd UE;Alternatively,

The mass measurement of the PC5 interface between the first UE and the 2nd UE is carried out, and according to measurement result when true When needing D2D private resource surely, control transceiver 610 sends D2D private resource request message to the 2nd UE.

Preferably, processor 600 also reports described simultaneously when 600 report measurement results of processor give two UE The information of the buffer status report BSR of first UE;

Alternatively, the D2D private resource is asked when processor 600 sends D2D private resource request message to the 2nd UE Seek the information that the BSR of the first UE is also carried in message.

In addition, processor 600 is also used to: reading the program in memory 620, when the UE is as Relay UE, execute Following process:

It controls transceiver 610 and sends D2D private resource request message to base station, and control transceiver 610 and receive under base station The notice for carrying D2D dedicated resource information of hair;

The D2D dedicated resource information issued according to the base station controls transceiver 610 to the first UE and issues the dedicated money of D2D Source information.

Preferably, being connect in the D2D private resource request message including the PC5 between the 2nd UE and the first UE The relevant information of mouth.

It needs to pass between the 2nd UE and the first UE preferably, the relevant information of the PC5 interface includes at least The information of defeated business datum amount.

Preferably, the relevant information of the PC5 interface further include:

The obtained measurement result of mass measurement or described second of the PC5 interface is carried out by the 2nd UE The received obtained measurement result of mass measurement that the PC5 interface is carried out by the first UE of UE.

Preferably, the processor 600 controls the triggering that transceiver 610 sends D2D private resource request message to base station Condition includes:

The processor 600 is determined according to the measurement result to be needed to send D2D private resource request message to base station;Or Person,

The control of processor 600 transceiver 610 receives the D2D private resource that at least one described first UE is sent and asks Seek message.

Preferably, when the processor 600 control transceiver 610 receives the D2D private resource that multiple first UE are sent When request message, the D2D private resource request message that the processor 600 is sent according to the multiple first UE, control transmitting-receiving Machine 610 is unified to send D2D private resource request message to base station.

Preferably, being asked when the processor 600 determines to need to send D2D private resource to base station according to the measurement result When seeking message, the processor 600 according to the measurement result and the information of the buffer status report BSR of the first UE, It determines and needs to send D2D private resource request message to base station;

Alternatively, the processor 600, which controls transceiver 610, receives the D2D private resource request that the first UE is sent When message, the information of the BSR of the first UE is also carried in the D2D private resource request message that the first UE is sent.

Preferably, the D2D dedicated resource information that the processor 600 is issued according to the base station control transceiver 610 to First UE issues D2D dedicated resource information, comprising:

When there is only one with the 2nd UE carries out a UE of D2D communication, the processor 600 controls transceiver The D2D dedicated resource information that the base station issues directly is transmitted to the first UE by 610, alternatively, 600 basis of the processor The D2D dedicated resource information that the demand of first UE and the base station issue redefines D2D dedicated resource information, and It controls transceiver 610 and the D2D dedicated resource information redefined is sent to the first UE;

Alternatively, when there are multiple with the 2nd UE carry out a UE of D2D communication when, the processor 600 is according to every The D2D dedicated resource information that the demand of one the oneth UE and the base station issue redefines the corresponding D2D of every one first UE Dedicated resource information, and control transceiver 610 and each D2D dedicated resource information redefined is sent to corresponding first UE。

Preferably, the processor 600 is also used to: control transceiver 610 issues D2D private resource letter using to the first UE Breath carries out signal transmission between the first UE.

Transceiver 610, for sending and receiving data under the control of processor 600.

Wherein, in Figure 15, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 600 one or more processors represented and memory 620 represent link together.Bus architecture Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can also be linked together, these It is all it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 610 It can be multiple element, that is, include transmitter and receiver, provide for over a transmission medium being communicated with various other devices Unit.For different user equipmenies, user interface 630, which can also be, external the interface for needing equipment is inscribed, connection Equipment includes but is not limited to keypad, display, loudspeaker, microphone, control stick etc..

Processor 600, which is responsible for management bus architecture and common processing, memory 620, can store processor 600 and is holding Used data when row operation.

Referring to Figure 16, in network side, another kind resource allocation apparatus provided in an embodiment of the present invention includes:

Processor 500 executes following process for reading the program in memory 520:

It controls transceiver 510 and receives the D2D private resource request message that the UE of D2D communication is sent;

It is the D2D allocation of communications D2D private resource according to the D2D private resource request message, and controls transceiver The notice for carrying the D2D dedicated resource information is sent to the UE by 510.

Preferably, the notice further include: the instruction information of the effective time of the D2D private resource.

Transceiver 510, for sending and receiving signal under control of the processor 500.

Wherein, in Figure 16, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 500 one or more processors represented and memory 520 represent link together.Bus architecture Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can also be linked together, these It is all it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 510 It can be multiple element, that is, include transmitter and transceiver, provide for over a transmission medium being communicated with various other devices Unit.Processor 500, which is responsible for management bus architecture and common processing, memory 520, can store processor 500 and is executing behaviour Used data when making.

Resource allocation apparatus provided in an embodiment of the present invention, such as can be the equipment such as base station.

In conclusion it is the communication matter ensured between Remote UE that the embodiment of the present invention, which gives a kind of Relay UE, Amount requests the scheme of distribution D2D private resource to network side.By this scheme, the communication matter on PC5 interface can be promoted Amount, ensure that the data transmission quality of Remote UE.

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.) Formula.

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims (29)

1. a kind of device-to-device D2D communication means, which is characterized in that this method comprises:
First user equipment (UE) receives the D2D private resource that the 2nd UE is sent;The D2D private resource is the 2nd UE to net The D2D private resource of network application;
First UE, which is used, carries out signal transmission between the D2D private resource and the 2nd UE.
2. the method according to claim 1, wherein the first UE receives the dedicated money of D2D that the 2nd UE is sent Before source, this method further include:
First UE carries out the mass measurement of the PC5 interface between the first UE and the 2nd UE, and reporting measurement knot Fruit gives the 2nd UE;Alternatively,
First UE carries out the mass measurement of the PC5 interface between the first UE and the 2nd UE, and is tied according to measurement Fruit sends D2D private resource request message when determination needs D2D private resource, to the 2nd UE.
3. according to the method described in claim 2, it is characterized in that, when the first UE report measurement results give the 2nd UE When, while also reporting the information of the buffer status report BSR of the first UE;
Alternatively, when the first UE sends D2D private resource request message to the 2nd UE, D2D private resource request The information of the BSR of the first UE is also carried in message.
4. a kind of device-to-device D2D communication means, which is characterized in that this method comprises:
2nd UE sends D2D private resource request message to base station, and receive that base station issues carries D2D dedicated resource information Notice;
The D2D dedicated resource information that 2nd UE is issued according to the base station issues D2D dedicated resource information to the first UE.
5. according to the method described in claim 4, it is characterized in that, including described the in the D2D private resource request message The relevant information of PC5 interface between two UE and the first UE.
6. according to the method described in claim 5, it is characterized in that, the relevant information of the PC5 interface includes at least described the The information for the business datum amount for needing to transmit between two UE and the first UE.
7. according to the method described in claim 6, it is characterized in that, the relevant information of the PC5 interface further include:
The obtained measurement result of mass measurement of the PC5 interface is carried out by the 2nd UE or the 2nd UE connects The obtained measurement result of mass measurement that the PC5 interface is carried out by the first UE received.
8. the method according to the description of claim 7 is characterized in that the 2nd UE sends the request of D2D private resource to base station The trigger condition of message includes:
2nd UE is determined according to the measurement result to be needed to send D2D private resource request message to base station;Alternatively,
2nd UE receives the D2D private resource request message that at least one described first UE is sent.
9. according to the method described in claim 8, it is characterized in that, when the 2nd UE receives what multiple first UE were sent When D2D private resource request message, the D2D private resource request message that the 2nd UE is sent according to the multiple first UE, It is unified to send D2D private resource request message to base station.
10. according to the method described in claim 8, it is characterized in that, when the 2nd UE determines need according to the measurement result When sending D2D private resource request message to base station, the 2nd UE is according to the measurement result and the first UE The information of buffer status report BSR determines and needs to send D2D private resource request message to base station;
Alternatively, the first UE is sent when the 2nd UE receives the D2D private resource request message that the first UE is sent D2D private resource request message in also carry the first UE BSR information.
11. according to the method described in claim 4, it is characterized in that, the D2D that is issued according to the base station of the 2nd UE is dedicated Resource information issues D2D dedicated resource information to the first UE, comprising:
When there is only one with the 2nd UE carry out D2D communication a UE when, the 2nd UE directly will be under the base station The D2D dedicated resource information of hair is transmitted to the first UE, alternatively, demand of the 2nd UE according to the first UE, and The D2D dedicated resource information that the base station issues, redefines D2D dedicated resource information, and by the dedicated money of the D2D redefined Source information is sent to the first UE;
Alternatively, the 2nd UE is according to every one first UE when there are multiple UE for carrying out D2D communication with the 2nd UE Demand and the D2D dedicated resource information that issues of the base station, redefine the corresponding D2D private resource of every one first UE Information, and each D2D dedicated resource information redefined is sent to corresponding first UE.
12. according to method described in any claim of claim 4-11, which is characterized in that this method further include:
2nd UE is used to the first UE and is issued D2D dedicated resource information, and signal transmission is carried out between the first UE.
13. a kind of resource allocation methods, which is characterized in that this method comprises:
It receives the first user equipment (UE) and the 2nd UE carries out the D2D private resource request message that the 2nd UE of D2D communication is sent;
It is the D2D allocation of communications D2D private resource according to the D2D private resource request message, and it is special to carry the D2D It is sent to the 2nd UE with the notice of resource information, so that the 2nd UE is according to the D2D dedicated resource information, to first UE issues D2D dedicated resource information, and the first UE, which is used, carries out signal biography between the D2D private resource and the 2nd UE It is defeated.
14. according to the method for claim 13, which is characterized in that the notice further include: the D2D private resource has Imitate the instruction information of time.
15. a kind of user equipment (UE) characterized by comprising
First unit when a UE for communicating as the UE as D2D, receives the D2D private resource that the 2nd UE is sent;Institute Stating D2D private resource is D2D private resource of the 2nd UE to network application;
Second unit, for using progress signal transmission between the D2D private resource and the 2nd UE.
16. equipment according to claim 15, which is characterized in that it is special that the first unit receives the D2D that the 2nd UE is sent Before resource, it is also used to:
Carry out the mass measurement of the PC5 interface between the first UE and the 2nd UE, and report measurement results are to described the Two UE;Alternatively,
The mass measurement of the PC5 interface between the first UE and the 2nd UE is carried out, and according to measurement result when determining need When wanting D2D private resource, D2D private resource request message is sent to the 2nd UE.
17. equipment according to claim 16, which is characterized in that when the first unit report measurement results are to described the When two UE, while also reporting the information of the buffer status report BSR of the first UE;
Alternatively, the D2D private resource is asked when the first unit sends D2D private resource request message to the 2nd UE Seek the information that the BSR of the first UE is also carried in message.
18. equipment according to claim 15, which is characterized in that further include:
Third unit, for sending D2D private resource request message to base station, and receive that base station issues to carry D2D dedicated The notice of resource information;
Unit the 4th, the D2D dedicated resource information for being issued according to the base station carry out D2D communication to the equipment Another UE issues D2D dedicated resource information.
19. a kind of user equipment (UE) characterized by comprising
Third unit when two UE for communicating as the UE as D2D, sends D2D private resource request message to base station, And receive the notice for carrying D2D dedicated resource information that base station issues;
Unit the 4th, the D2D dedicated resource information for being issued according to the base station carry out D2D communication to the equipment First UE issues D2D dedicated resource information.
20. equipment according to claim 19, which is characterized in that include described in the D2D private resource request message The relevant information of PC5 interface between 2nd UE and the first UE.
21. equipment according to claim 20, which is characterized in that the relevant information of the PC5 interface includes at least described The information for the business datum amount for needing to transmit between 2nd UE and the first UE.
22. equipment according to claim 21, which is characterized in that the relevant information of the PC5 interface further include:
The obtained measurement result of mass measurement of the PC5 interface is carried out by the 2nd UE or the 2nd UE connects The obtained measurement result of mass measurement that the PC5 interface is carried out by the first UE received.
23. equipment according to claim 22, which is characterized in that the third unit sends D2D private resource to base station The trigger condition of request message includes:
It is determined according to the measurement result and needs to send D2D private resource request message to base station;Alternatively,
Receive the D2D private resource request message that at least one described first UE is sent.
24. equipment according to claim 23, which is characterized in that sent when the third unit receives multiple first UE D2D private resource request message when, the request of D2D private resource that the third unit is sent according to the multiple first UE disappears Breath is unified to send D2D private resource request message to base station.
25. equipment according to claim 23, which is characterized in that the third unit according to the measurement result, and The information of the buffer status report BSR of first UE determines and needs to send D2D private resource request message to base station;
Alternatively, when the third unit receives the D2D private resource request message that the first UE is sent, also from described first The information of the BSR of the first UE is obtained in the D2D private resource request message that UE is sent.
26. equipment according to claim 19, which is characterized in that Unit the 4th is specifically used for:
When there is only one with the 2nd UE carry out D2D communication a UE when, the D2D for directly issuing the base station is dedicated Resource information is transmitted to the first UE, alternatively, dedicated according to the D2D that the demand of the first UE and the base station issue Resource information redefines D2D dedicated resource information, and the D2D dedicated resource information redefined is sent to described first UE;
Alternatively, when there are multiple with the 2nd UE carry out a UE of D2D communication when, according to the demand of every one first UE, with And the D2D dedicated resource information that the base station issues, the corresponding D2D dedicated resource information of every one first UE is redefined, and will Each D2D dedicated resource information redefined is sent to corresponding first UE.
27. equipment described in any claim of 9-26 according to claim 1, which is characterized in that Unit the 4th is also used to: using D2D dedicated resource information is issued to the first UE, signal transmission is carried out between the first UE.
28. a kind of resource allocation apparatus characterized by comprising
Receiving unit, the dedicated money of D2D that the 2nd UE for receiving the first user equipment (UE) and the 2nd UE progress D2D communication is sent Source request message;
Allocation unit, for being the D2D allocation of communications D2D private resource according to the D2D private resource request message, and will The notice for carrying the D2D dedicated resource information is sent to the 2nd UE, so that the 2nd UE is according to the dedicated money of the D2D Source information issues D2D dedicated resource information to the first UE, and the first UE uses the D2D private resource and the 2nd UE Between carry out signal transmission.
29. equipment according to claim 28, which is characterized in that the notice further include: the D2D private resource has Imitate the instruction information of time.
CN201510170486.8A 2015-04-10 2015-04-10 A kind of communication of device-to-device and its resource allocation methods, equipment CN104869526B (en)

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