CN104349485B - A kind of communication between devices, dispatching method and device - Google Patents
A kind of communication between devices, dispatching method and device Download PDFInfo
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- CN104349485B CN104349485B CN201310342057.5A CN201310342057A CN104349485B CN 104349485 B CN104349485 B CN 104349485B CN 201310342057 A CN201310342057 A CN 201310342057A CN 104349485 B CN104349485 B CN 104349485B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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Abstract
The invention discloses a kind of communication between devices, dispatching method and device, to realize the direct communication between the UE in D2D regions.A kind of dispatching method of equipment room D2D communications provided by the invention, including：Network side node broadcasts to dispatch the information of D2D resources to user equipment (UE), including for sending the resource information of D2D scheduling informations DSI；Network side node receives the D2D service requests of UE, according to the D2D service requests of UE, when being determined as resource of the UE distribution for carrying out D2D communications, dispatches UE by DSI and carries out D2D communications.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of equipment rooms（Device to Device, D2D）Communication,
Dispatching method and device.
Background technology
In mobile communication system future development, in order to better meet user demand, the efficiency of interactive information is promoted, is introduced
Direct communication mechanism between mobile equipment.But for user equipment adjacent to each other（User Equipment, UE）How
Direct communication is carried out, currently without solution.
Existing mobile communication system is illustrated below.
Referring to Fig. 1, in Long Term Evolution（Long Term Evolvement, LTE）In system, what is taken is that network concentrates control
The uplink and downlink data of the mode of system, i.e. UE are all sent and received under the control of a network.Communication between UE and UE, be by
What network was forwarded to and controlled.There is no direct communication links, UE between UE and UE not to allow voluntarily to send line number yet
According to.
Referring to Fig. 2, allow to carry out certain direct communication in D2D communication patterns, between UE and UE, these direct communications
Link can be set up in the case where network controls or aids in.The basis that D2D communications are carried out between UE and UE is to close
UE found.
In general scene, two UE communicated can be approached due to mutual, will pass through network transmission originally
Communication link be converted into local direct communication link, save substantial amounts of bandwidth and network efficiency.Alternatively, due to two UE
It is close to each other, and generate the demand of communication, can be led between this close distance, UE using direct link
Letter obtains the cheap communication service of stable high speed.
It needs to carry out each other between the scenes such as public safety field, such as public security, fire-fighting, rescue, special specified UE
It was found that and communication process.
In above scene, all inevitably involve how to so that finding and establishing mutually between the UE specified and is logical
The process of letter.
In conclusion in the prior art, traditional device-to-device communication such as similar Wifi and bluetooth, is complete using UE
The mode competed entirely seizes transfer resource, lacks the unified management and management and control of network, and resource utilization is not high.And make
The mode of D2D communications is controlled and dispatched with eNB, is communicated for the D2D being between the UE of different eNB, it is necessary between eNB
Coordinate resource, in the case of D2D business is more, rolls up the interaction between eNB, and increase complexity.
The content of the invention
An embodiment of the present invention provides a kind of communication between devices, dispatching method and device, to realize the UE in D2D regions
Between direct communication.
A kind of dispatching method of equipment room D2D communications provided in an embodiment of the present invention, including：
Network side node broadcasts to dispatch the information of D2D resources to user equipment (UE), including for sending D2D tune
Spend the resource information of information DSI；
Network side node receives the D2D service requests of UE, according to the D2D service requests of UE, is used for when being determined as UE distribution
When carrying out the resource of D2D communications, UE is dispatched by DSI and carries out D2D communications.
So as to which in network side, the direct communication between the UE in realization D2D regions realizes specific scheduling scheme.
It is preferred that communicating for the D2D of mode of unicast, network side node receives the D2D service requests of UE, according to UE's
D2D service requests when being determined as resource of the UE distribution for carrying out D2D communications, dispatch UE by DSI and carry out D2D communications, bag
It includes:
Network side node receives the D2D service requests of the first UE and the 2nd UE respectively, according to the D2D service requests of the first UE
The first UE is authenticated and is obtained by core net the business configured transmission of the D2D business of request, when the authentication is passed
When, D2D marks are distributed for the first UE, the first UE is sent to by D2D response messages；Led to according to the D2D service requests of the 2nd UE
The business configured transmission that core net authenticated and obtained the D2D business of request to the 2nd UE is crossed, when the authentication is passed,
D2D marks are distributed for the 2nd UE, the 2nd UE is sent to by D2D response messages；
Utilize D2D service requests, the business configured transmission of the first UE and the 2nd UE, point for being the first UE and the 2nd UE
The resource for carrying out D2D communications is used in, DSI is generated, and the first UE and the 2nd UE is sent to by the eNB each serviced respectively.
So as to communicate for the D2D of mode of unicast, realize the scheduling of resource for two UE for needing to communicate.
It is preferred that network side node authenticates the first UE by core net according to the D2D service requests of the first UE
The step of, the step of with being authenticated according to the D2D service requests of the 2nd UE by core net to the 2nd UE, perform simultaneously.
In this way, more saving the time, efficiency is improved.
It is preferred that network side node distributes D2D marks for the first UE, it is identical with distributing D2D marks for the 2nd UE.So more
Supernumerary segment saves D2D mark resources.
It is preferred that this method further includes：Network side node distributes communication party when the authentication is passed to the first UE, for the first UE
Should be that the first UE distribution communication direction marks are sent with distributing D2D marks for the first UE by D2D response messages simultaneously to mark
To the first UE；
Network side node distributes communication direction mark when the authentication is passed to the 2nd UE, for the 2nd UE, should be the 2nd UE points
It is identified with communication direction and the 2nd UE is sent to by D2D response messages simultaneously with distributing D2D marks for the 2nd UE.
In this way, it can identify to distinguish the reception or transmission of the first UE and the 2nd UE using communication direction in scheduling.
Preferably, communicate for the D2D of broadcast mode, it is described for dispatching the information of D2D resources, it further includes：For sending out
Send the resource information of D2D control channels D2DCCH；
When the network side node is determined as resource of the UE distribution for carrying out D2D communications, the network side node is also
D2DCCH is sent to UE.
So that receiving terminal UE further can carry out business according to the information carried in D2DCCH receives selection, selection
Oneself interested business is received.
Preferably, network side node receives the D2D service requests of UE, according to the D2D service requests of UE, divide when being determined as UE
When being used in the resource for carrying out D2D communications, DSI and D2DCCH is sent to UE, including:
Network side node receives the D2D service requests of transmitting terminal UE, according to the D2D service requests by core net to the hair
Sending end UE is authenticated and is obtained the business configured transmission of the D2D business of request, is UE points of transmitting terminal when the authentication is passed
It is identified with D2D, transmitting terminal UE is sent to by D2D response messages；
Using the D2D service requests, business configured transmission, distribute to carry out the resource of D2D communications for transmitting terminal UE,
DSI and D2DCCH is generated, and passes through eNB and is sent to transmitting terminal UE and receiving terminal UE.
So as to communicate for the D2D of broadcast mode, realize the scheduling of resource for the multiple UE for needing to communicate.
It is preferred that the network side node is used for what the D2D communications in D2D regions were managed to be pre-set
D2D coordination entities DCE or evolved base station eNB.
It is preferred that when the network side node is DCE, DCE determines eNB according to the location information of UE, and passes through this really
Fixed eNB broadcasts DSI to UE.
A kind of equipment room D2D communication means provided in an embodiment of the present invention, including：
User equipment (UE) receive evolved base station eNB broadcast for dispatching the information of D2D resources, including for sending out
Send the resource information of D2D scheduling informations DSI；
UE sends D2D service requests to eNB, and receives D2D response messages, therefrom obtains D2D marks；
UE for sending the resource information of DSI, determines to send the resource of DSI according to described, and from for sending DSI
Resource on, receive eNB send DSI；
UE in the DSI that the D2D of this UE is identified and eNB is sent according to, to the scheduling information of this UE, carrying out D2D communications.
It is achieved thereby that the direct communication between UE in D2D regions.
It is preferred that communicating for the D2D of mode of unicast, the UE includes carrying out D2D business data transmissions between each other
First UE and the 2nd UE.
It is achieved thereby that the direct communication of the mode of unicast between UE in D2D regions.
It is preferred that communicating for the D2D of broadcast mode, transmitting terminal UE sends D2D service requests to eNB, and receives D2D sound
Message is answered, therefrom obtains D2D marks；
Transmitting terminal UE according in the DSI that the D2D of this UE is identified and eNB is sent to the scheduling information of transmitting terminal UE, hair
Send D2D business datums；The DSI that receiving terminal UE is broadcasted according to eNB, selection receive D2D business datums.
It is achieved thereby that the direct communication of the broadcast mode between UE in D2D regions.
A kind of dispatching device of equipment room D2D communications provided in an embodiment of the present invention, including：
Scheduling resource notification unit, for broadcasting to dispatch the information of D2D resources to user equipment (UE), including with
In the resource information for sending D2D scheduling informations DSI；
Scheduling unit for receiving the D2D service requests of UE, according to the D2D service requests of UE, is used when being determined as UE distribution
When the resource of D2D communications is carried out, UE is dispatched by DSI and carries out D2D communications.
So as to which in network side, the direct communication between the UE in realization D2D regions realizes specific scheduling scheme.
It is preferred that communicating for the D2D of mode of unicast, the scheduling unit receives the D2D of the first UE and the 2nd UE respectively
Service request authenticates and obtains request to the first UE according to the D2D service requests of the first UE by core net
The business configured transmission of D2D business when the authentication is passed, is distributed D2D marks for the first UE, is sent to by D2D response messages
First UE；The 2nd UE is authenticated and is obtained by core net according to the D2D service requests of the 2nd UE the D2D of request
The business configured transmission of business when the authentication is passed, distributes D2D marks for the 2nd UE, second is sent to by D2D response messages
UE；Using D2D service requests, the business configured transmission of the first UE and the 2nd UE, the distribution for being the first UE and the 2nd UE is used
In the resource for carrying out D2D communications, DSI is generated, and the first UE and the 2nd UE are sent to by the eNB each serviced respectively.
So as to communicate for the D2D of mode of unicast, realize the scheduling of resource for two UE for needing to communicate.
It is preferred that the scheduling unit carries out the first UE by core net in the D2D service requests according to the first UE
While authentication, the 2nd UE is authenticated by core net according to the D2D service requests of the 2nd UE.In this way, it more saves
Time improves efficiency.
It is preferred that the scheduling unit distributes D2D marks for the first UE, it is identical with distributing D2D marks for the 2nd UE.So
More save D2D mark resources.
It is preferred that the scheduling unit is additionally operable to：When the authentication is passed to the first UE, communication direction mark is distributed for the first UE
Know, communication direction mark should be distributed for the first UE with being that the first UE distributes D2D marks and is sent to the by D2D response messages simultaneously
One UE；
When the authentication is passed to the 2nd UE, communication direction mark is distributed for the 2nd UE, communication direction should be distributed for the 2nd UE
Mark is sent to the 2nd UE by D2D response messages simultaneously with distributing D2D marks for the 2nd UE.
In this way, it can identify to distinguish the reception or transmission of the first UE and the 2nd UE using communication direction in scheduling.
It is preferred that communicate for the D2D of broadcast mode, it is described for dispatching the information of D2D resources, it further includes：For sending out
Send the resource information of D2D control channels D2DCCH；
When the scheduling unit is determined as resource of the UE distribution for carrying out D2D communications, the scheduling unit is also to UE
Send D2DCCH.
So that receiving terminal UE further can carry out business according to the information carried in D2DCCH receives selection, selection
Oneself interested business is received.
It is preferred that the scheduling unit receives the D2D service requests of transmitting terminal UE, core is passed through according to the D2D service requests
Heart net authenticates and obtains the business configured transmission of the D2D business of request to transmitting terminal UE, when the authentication is passed, is
Transmitting terminal UE distribution D2D marks, transmitting terminal UE is sent to by D2D response messages；It is passed using the D2D service requests, business
Defeated parameter distributes to carry out the resource of D2D communications for transmitting terminal UE, generates DSI and D2DCCH, and pass through eNB and be sent to
Sending end UE and receiving terminal UE.
So as to communicate for the D2D of broadcast mode, realize the scheduling of resource for the multiple UE for needing to communicate.
It is preferred that described device is used to coordinate the D2D that the D2D communications in D2D regions are managed to be pre-set
Entity DCE or evolved base station eNB.
It is preferred that when described device is DCE, the scheduling unit determines eNB according to the location information of UE, and passes through this
Definite eNB broadcasts DSI to UE.
A kind of equipment room D2D communicators provided in an embodiment of the present invention, including：
Scheduling resource receiving unit, for receiving the information for being used to dispatch D2D resources of evolved base station eNB broadcast,
Include sending the resource information of D2D scheduling informations DSI；
Service request unit for sending D2D service requests to eNB, and receives D2D response messages, therefrom obtains D2D marks
Know；
DSI receiving units for sending the resource information of DSI according to described, determine to send the resource of DSI,
And from for sending the resource of DSI, receive the DSI that eNB is sent；
Communication unit, for according to the scheduling to this UE in the D2D of the affiliated UE of present apparatus marks and the DSI of eNB transmissions
Information carries out D2D communications.
It is achieved thereby that the direct communication between UE in D2D regions.
It is preferred that for mode of unicast D2D communicate, the communication unit according to the D2D of the affiliated UE of the present apparatus identify with
And sending and receiving for D2D business datums is carried out between another UE to the scheduling information of this UE in the DSI of eNB transmissions.
It is achieved thereby that the direct communication of the mode of unicast between UE in D2D regions.
It is preferred that communicate for the D2D of broadcast mode, when the UE belonging to described device is transmitting terminal UE, the communication
Unit in the DSI that the D2D of this UE is identified and eNB is sent according to, to the scheduling information of transmitting terminal UE, sending D2D business numbers
According to；When the UE belonging to described device is receiving terminal UE, DSI that the communication unit broadcast according to eNB, selection reception D2D industry
Business data.
It is achieved thereby that the direct communication of the broadcast mode between UE in D2D regions.
Description of the drawings
Fig. 1 is existing mobile communication system schematic diagram；
Fig. 2 is existing D2D communication systems schematic diagram；
Fig. 3 is a kind of D2D communication network architecture schematic diagrames of DCE controls provided in an embodiment of the present invention；
Fig. 4 is a kind of broadcast session process schematic of DCE controls provided in an embodiment of the present invention；
Fig. 5 is a kind of one-to-one unicast session process schematic of DCE controls provided in an embodiment of the present invention；
Fig. 6 is a kind of broadcast session process schematic of eNB controls provided in an embodiment of the present invention；
Fig. 7 controls one-to-one unicast session process schematic for a kind of eNB provided in an embodiment of the present invention；
Fig. 8 is the scheduling schematic diagram of DSI and D2DCCH provided in an embodiment of the present invention a kind of；
Fig. 9 is a kind of DSI MAC CE structure diagrams provided in an embodiment of the present invention；
Figure 10 is a kind of DSI MAC CE structure diagrams provided in an embodiment of the present invention；
Figure 11 is the dispatching method flow diagram that a kind of D2D of network side provided in an embodiment of the present invention communicates；
Figure 12 is the flow diagram that a kind of D2D of end side provided in an embodiment of the present invention communicates；
Figure 13 is the structure diagram for the dispatching device that a kind of D2D of network side provided in an embodiment of the present invention communicates；
Figure 14 is a kind of structure diagram of the D2D communicators of end side provided in an embodiment of the present invention.
Specific embodiment
An embodiment of the present invention provides a kind of communication between devices, dispatching method and device, to realize the UE in D2D regions
Between direct communication.
The embodiment of the present invention proposes a kind of D2D communications based on D2D regions and scheduling scheme, all under the region
Cell provides identical time and frequency resource pond for D2D communications, and uses D2D coordination entities（D2D Coordination
Entity, DCE）D2D communications are managed so that mobile equipment can reduce D2D and lead to flexibly sufficiently using D2D resources
Interference between letter and cellular communication, improves whole handling capacity and user experience.
The wireless money that eNB is used by system information to UE broadcast schedulings and common control information in the embodiment of the present invention
Source.The UE of D2D communications knows the position of D2D scheduling and control information by reading system information, then by reading D2D scheduling
The radio resource of D2D communications is obtained with control information.
Technical solution provided in an embodiment of the present invention can be applied to D2D regions, i.e., a certain region（This region is known as
D2D regions）The interior all cells for participating in D2D can provide identical radio resource for sending D2D scheduling and control information, and
D2D coordination entities can be passed through（D2D Coordination Entity, DCE）D2D communications in D2D regions are managed.
Further, each cell can be identical for carrying out the radio resource of D2D communications between UE in D2D regions, can also
Difference, based on the negotiation of eNB and DCE, DCE is managed and divides to the D2D that each eNB is provided in the D2D regions resources to communicate
Match somebody with somebody.
The central controlled network structures of DCE are as shown in figure 3, including core net（CN, Core Network）, D2D coordinate it is real
Body（DCE, D2D Coordination Entity）With eNode B.
ENB in D2D regions uses system information（SIB）Broadcast is for dispatching the information of D2D resources, including being used to send
D2D scheduling informations（D2D Scheduling Information, DSI）Resource information, can also further include for sending out
Send D2D control channels（D2D Control Channel, D2DCCH）Resource information.
Wherein, include the transmission frequency of DSI for sending the resource information of DSI, repeat sending cycle, offset, subframe
Time slot configuration.Include the repetition sending cycle of D2D control channels, subframe time slot for sending the resource information of D2D control channels
Configuration and MCS.
It is preferred that the repetition sending cycle of D2DCCH configurations repeats the integral multiple of sending cycle for DSI.
The SIB information of each eNB broadcast can be identical in D2D regions, can not also be identical, can be in order to when identical
UE can continuously read the scheduling information of D2D resources when being moved in the D2D regions.
Network node DCE is responsible for being managed the D2D user in entire D2D regions and resource.DCE can be assisted with eNB
Commercialization is in the D2D running time-frequency resources to communicate or the running time-frequency resources of D2D communications is configured to by O＆M to DCE, and notifies eNB.
ENB sends to send the resource information of DSI and resource information for sending D2DCCH except through SIB information
Outside, it is also responsible for sending DSI and D2DCCH.Wherein, in DSI the DSI under eNB is specifically included mainly comprising D2D resource scheduling informations
The D2D marks and D2D of scheduling in cycle identify corresponding D2D data sendings running time-frequency resource.DSI can also include instruction D2DCCH
The information whether changed is used to indicate whether to have updated D2DCCH, upgrade in time convenient for UE.D2DCCH can include common subframe
Distribution pattern（Common Subframe Allocation Pattern, CSAP）Information and D2D session informations.CSAP is eNB
Be supplied to D2D communicate resource pool sequence, D2D session informations include eNB in carry out D2D communications D2D mark and it is corresponding
The information such as business information and the modulating-coding of use.
It communicates for the D2D of broadcast mode, the system information that UE is broadcasted by reading eNB（That is SIB information）It is used for
The resource information of D2D scheduling informations DSI is sent, can also further obtain to send the resource information of D2DCCH.Transmitting terminal
UE needs first to be accessed, to DCE（Or eNB）D2D service requests are sent, and from DCE（Or eNB）Obtain the D2D in D2D regions
Mark（Abbreviation D2D is identified）.Transmitting terminal UE is to DCE（Or eNB）It can the TMSI comprising UE, hair in the D2D service requests of transmission
The information such as business information, UE positions and the UE abilities risen.Wherein, if UE is to send D2D service requests, eNB roots to DCE
It determines the D2D business request informations being directly forwarded to DCE according to type of message.UE location informations can also be determined by network
Position obtains.When DCE is configured according to the size and occupation condition of UE location informations, transmission type of service or data for the UE
Frequency resource, and new DSI and D2DCCH are issued into related eNB and broadcasted.DCE is according to the location determination of transmitting terminal UE at which
Or which eNB sends DSI and D2DCCH to UE.Further, DCE can be multiplexed resource according to the location information of UE,
Improve resource utilization.
Transmitting terminal UE monitors the DSI and D2DCCH that eNB is sent, and obtains the scheduling information of oneself, refers in the scheduling information
D2D data are sent in the resource shown.Receiving terminal UE monitors the DSI and D2DCCH that eNB is sent, and therefrom finds the D2D of oneself care
Then resource where data receives the D2D data in the resource.Receiving terminal UE can be from the D2DCCH in D2D scheduling informations
D2D business present in eNB where middle lookup and the corresponding D2D of the D2D business send the mark of UE, i.e. D2D marks.
It communicates for the D2D of mode of unicast, UE obtains to send the resource information and use of DSI by reading system information
In the resource information for sending D2DCCH.It communicates for the D2D of mode of unicast, UE can only monitor to send the resource letter of DSI
Breath, without the resource information for monitoring to send D2DCCH.Originating end UE needs first to be accessed, to DCE（Or eNB）It sends
D2D service requests, and from DCE（Or eNB）Obtain the D2D marks in D2D regions（Abbreviation D2D is identified）.Originating end UE is to DCE
（Or eNB）In the D2D service requests of transmission can comprising the TMSI of originating end UE, called UE mark, initiate business information,
The information such as UE positions and UE abilities.When needing D2D service requests being sent to DCE, eNB disappears according to D2D service requests
Type is ceased to determine the D2D business request informations being directly forwarded to DCE.The location information of UE can also pass through network positions
It obtains.DCE can also do the D2D communication authentications of calling UE and called UE to core net, and DCE is sent to called UE after the authentication is passed
D2D is paged, and after the D2D page responses for receiving called UE, DCE distributes D2D marks and communication direction mark for calling UE and called UE
Know, and pass through D2D response messages notice calling UE and called UE, DCE is according to the location information of calling UE and called UE, transmission industry
The size and occupation condition of service type or data are that the calling UE and called UE distribute to carry out the resource of D2D communications,
And new DSI is issued into related eNB and is broadcasted.DCE according to the location determination of the calling UE and called UE to the calling UE and
The DSI that called UE is sent needs to be sent by which or which eNB.Further, DCE can be according to calling UE and called
The location information of UE is multiplexed resource, improves resource utilization.Calling UE and called UE monitor DSI and D2DCCH, work as prison
It hears the information identified in DSI comprising the D2D of oneself, is then identified according to the resource location in DSI and D2DCCH and communication direction
Carry out data sending and reception.Wherein, identified on the communication direction, be, for example, the communication direction mark of calling UE distribution
In, it represents to send with 0, represents to receive with 1, and be in the communication direction mark of the distribution of called UE, it represents to send with 1, with 0 table
Show reception, in this way, can identify to distinguish the reception or transmission of calling UE and called UE using communication direction in scheduling.
Technical solution provided in an embodiment of the present invention can also be applied to the D2D communications of eNB controls, for the D2D across eNB
Communication can be realized by the interaction between eNB.It communicates for the D2D of eNB controls, adjacent eNB can also be made by interaction
It is used to send DSI and D2DCCH with identical radio resource.The detailed process of the D2D communications of eNB controls and the D2D of DCE controls
The detailed process of communication is roughly the same, and difference is that DSI and D2DCCH is eNB generations.Due to eNB can only be to eNB in the range of
UE carry out resource management and scheduling, for the UE of across eNB carry out D2D communications, then need to hold consultation between eNB.
Several specific embodiments are given below to illustrate concrete implementation mode.
Following embodiment illustrates the distribution to D2D broadcast communication resources and using process, remaining system mistake with LTE system
Journey is similar.
Embodiment 1：The D2D broadcast communication processes of DCE controls
Referring to Fig. 4, D2D communication means provided in an embodiment of the present invention includes：
Step 0：ENB sends system information to UE, wherein including to send the resource information of DSI and for sending
The resource information of D2DCCH.
Step 1：If the D2D communications of core net triggering, network send to transmitting terminal UE and page.If UE triggerings
D2D communicates, and step 1 is not required.
Step 2：Wireless spread-spectrum technology is established between UE and eNB（RRC）Connection, it can be no signal to establish reason（mo-
Signalling）.If transmitting terminal UE is in connection status, step 2 is not required.
Step 3：UE to DCE send D2D service requests, wherein can carry the TMSI of UE, initiate D2D business information,
The location information of UE（Location information can be report network or network carries out positioning measurement to UE after UE positioning measurements
It obtains）Etc. contents, the message DCE is transmitted to by eNB.
Step 4：After DCE receives the request of UE, the D2D authentications of the UE and business mapping request, business are initiated to core net
Mapping is mainly the parameter that core net provides business transmission to DCE.
Step 5：Core net authenticates UE and is carried out business mapping after receiving request, and will authentication and business mapping hair
Give DCE.
Step 6：DCE is received after the authentication is passed, distributes D2D marks for the UE, and it is sent to by D2D response messages
UE（It is forwarded by eNB）.
Step 7：DCE receives the business information sent according to UE needs after the request of UE, the position of UE and the current position
The factors such as the D2D resource service conditions near putting distribute D2D resources for it, generate new DSI and D2DCCH, and determine by which
Or which eNB is sent, and DSI and D2DCCH is sent to this or these eNB.
Step 7a：Transmitting terminal UE monitors the DSI and D2DCCH that eNB is sent.
Step 7b：Receiving terminal UE monitors the DSI and D2DCCH that eNB is sent.
Step 8：DCE sends DSI and D2DCCH to eNB.DCE can be multiple near it according to the position for sending UE
ENB sends the DSI and D2DCCH to the UE.Different transmitting terminal UE, DCE can be reused identical according to the position of UE
Resource.
Step 9：The DSI positions that eNB is indicated in SIB send DSI and D2DCCH.
Step 10：Transmitting terminal UE receives the information identified in DSI comprising the D2D of oneself, then according to the resource-niche in DSI
Put carry out data sending.
Step 10a：Receiving terminal UE receives the information that the D2D marks oneself being concerned about are included in DSI resource scheduling informations, then
Data receiver is carried out according to the resource location in scheduling information.
Wherein, how UE judges whether to need reception can be there are many mode, such as receiving terminal UE is by reading D2DCCH
In traffic ID judge whether to need to receive or receiving terminal UE receives the D2D of all DSI scheduling and identifies corresponding radio resource
On data, can decode and correctly think within communication range, pay close attention to afterwards, and in real time to other business and new industry
Business constantly monitors whether to fall within communication range or UE can obtain certain recommendation information from network side, such as eNB will
Belong to identical group（Group）D2D mark etc. information inform receive UE, pay close attention to；Again alternatively, UE can be each other by business
Rank interacts, and obtains the information such as the D2D marks of other side.
Step 11：Transmitting terminal UE sends D2D data in the resource of scheduling, and receiving terminal UE is received in the resource of scheduling
D2D data.
It should be noted that the eNB that UE1 and UE2 is serviced may be the same or different, but need in same D2D areas
In domain.
Embodiment 2：The D2D unicast communication processes of DCE controls
Referring to Fig. 5, D2D communication means provided in an embodiment of the present invention includes：
Step 50：ENB sends system information to UE, wherein including to send the resource information of DSI and for sending
The resource information of D2DCCH.
Step 51：If the D2D communications of core net triggering, network send paging to the side UE2 that D2D communicates.If
It is the D2D communications of UE triggerings, step 51. is not required
Step 51a：If the D2D communications of core net triggering, network send paging to the side UE1 that D2D communicates.If
It is the D2D communications of UE triggerings, step 51a. is not required
Step 52：RRC connections are established between UE2 and eNB.If UE2 is in connection status, step 52 is not required.
Step 52a：RRC connections are established between UE1 and eNB.If UE1 is in connection status, step 52a is not required.
Step 53：UE2 sends D2D service requests to DCE, wherein the TMSI of UE2, the D2D business initiated letter can be carried
Breath, the location information of UE（Location information can be report network or network carries out positioning survey to UE after UE positioning measurements
Amount obtains）, contents, the message such as other side's UE1 information DCE is transmitted to by eNB.
Step 53a：UE1 sends D2D service requests to DCE, wherein the TMSI of UE1, the D2D business initiated letter can be carried
Breath, the location information of UE（Location information can be report network or network carries out positioning survey to UE after UE positioning measurements
Amount obtains）, contents, the message such as other side's UE2 information DCE is transmitted to by eNB.
Step 54：After DCE receives the request of UE, the D2D authentications of UE2 and UE1 and business mapping request are initiated to core net,
Business mapping is mainly the parameter that core net provides business transmission to DCE.
Progress can be separated by carrying out the authentication of 2 UE of D2D communications, can also merge progress.
Step 55：Core net authenticates UE and is carried out business mapping after receiving request.It and will authentication and business mapping
It is sent to DCE.
Step 56：DCE is received after the authentication is passed, and D2D responses, distribution D2D marks and D2D communication direction marks are sent to UE2
Know, and it is sent to UE2 by D2D response messages（It is forwarded by eNB）.
Step 56a：DCE sends D2D response messages, distribution D2D marks and D2D communication directions mark to UE1, and is led to
It crosses D2D response messages and is sent to UE1（It is forwarded by eNB）.
D2D marks to carry out 2 UE of D2D communications distribution may be different, it is also possible to identical.
Step 57：D2D moneys near the business information that DCE is sent according to UE needs, the position of UE and the current position
The factors such as source service condition distribute D2D resources for it, generate new DSI and D2DCCH, and determine to be sent out by which or which eNB
It send, DSI and D2DCCH is sent to this or these eNB.
Step 57a：UE1 and UE2 monitors the DSI and D2DCCH that eNB is sent.
Step 58：DCE sends DSI and D2DCCH to eNB.DCE can be multiple near it according to the position for sending UE
ENB sends the resource scheduling information to the UE.Different transmission UE, DCE can be reused identical according to the position of UE
Resource.
Step 59：The DSI positions that eNB is indicated in SIB send DSI and D2DCCH.
Step 510：UE1 and UE2 receives the information identified in DSI scheduling informations comprising the D2D of oneself, then according to scheduling
Resource location in information carries out data sending and reception.
Step 511：D2D communications are carried out on the radio resource that UE1 and UE2 is specified in DSI.
It should be noted that the eNB that UE1 and UE2 is serviced may be the same or different, but need in same D2D areas
In domain.
Embodiment 3：The D2D broadcast communication processes of eNB controls
Referring to Fig. 6, D2D communication means provided in an embodiment of the present invention includes：
Step 60：ENB sends system information to UE, wherein including to send the resource information of DSI and for sending
The resource information of D2DCCH.
Step 61：If the D2D communications of core net triggering, network send to transmitting terminal UE and page.If UE is triggered
D2D communication, be not required step 61.
Step 62：RRC connections are established between UE and eNB, reason is established and can be, but not limited to as mo-Signalling.Such as
Fruit sends UE and is in connection status, and step 62 is not required.
Step 63：UE to eNB send D2D service requests, wherein can carry the TMSI of UE, initiate D2D business information,
The location information of UE（Location information can be report network or network carries out positioning measurement to UE after UE positioning measurements
It obtains）Etc. contents.
Step 64：After eNB receives the D2D service requests of UE, initiate the D2D authentications of the UE to core net and business mapping please
It asks, business mapping is mainly the parameter that core net provides business transmission to eNB.
Step 65：Core net authenticates UE and is carried out business after receiving the D2D authentications of the UE and business mapping request
Mapping.And authentication and business mapping result are sent to eNB.
Step 66：ENB is received after the authentication is passed, distributes D2D marks for the UE, and it is sent by D2D response messages
To UE.
Step 67：ENB receives the business information sent according to UE needs after the D2D service requests of the UE of UE, the position of UE
And the factors such as D2D resource service conditions near the current position distribute D2D resources for it, and determine the need for other
ENB coordinates to send resource and sends the information of transmission UE, generates new DSI and D2DCCH, is also sent if necessary to other eNB
Its relevant information is then sent to corresponding eNB by the information of the UE.
Step 67a：Transmitting terminal UE monitors the DSI and D2DCCH that eNB is sent.
Step 67b：Receiving terminal UE monitors the DSI and D2DCCH that eNB is sent.
Step 68：The DSI positions that eNB is indicated in SIB send DSI and D2DCCH.
Step 69：Transmitting terminal UE receives the information identified in DSI comprising the D2D of oneself, then according to the resource-niche in DSI
Put carry out data sending.
Step 69a：Receiving terminal UE receives the information that the D2D marks oneself being concerned about are included in DSI resource scheduling informations, then
Data receiver is carried out according to the resource location in DSI.
Wherein, how UE judges whether to need reception can be there are many mode, such as receiving terminal UE is by reading D2DCCH
In traffic ID judge whether to need to receive or receiving terminal UE receives the D2D of all DSI scheduling and identifies corresponding radio resource
On data, can decode and correctly think within communication range, pay close attention to afterwards, and in real time to other business and new industry
Business constantly monitors whether to fall within communication range or UE can obtain certain recommendation information from network side, such as eNB will
Belong to the information such as the D2D marks of identical Group and inform reception UE, pay close attention to；Again alternatively, UE can be each other by business-level
It interacts, obtains the information such as the D2D marks of other side.
Step 610：Transmitting terminal UE sends D2D data in the resource of scheduling, and receiving terminal UE is received in the resource of scheduling
D2D data.
Embodiment 4：The D2D unicast communication processes of eNB controls
Referring to Fig. 7, D2D communication means provided in an embodiment of the present invention includes：
Step 70：ENB sends system information to UE, wherein including to send the resource information of DSI and for sending
The resource information of D2DCCH.The service eNB of UE1 is eNB1, and the service eNB of UE2 is eNB2.
Step 71：If the D2D communications of core net triggering, network send paging to the side UE2 that D2D communicates.If
It is the D2D communications of UE2 triggerings, step 71. is not required
Step 71a：If the D2D communications of core net triggering, network send paging to the opposing party UE1 that D2D communicates.Such as
Fruit is the D2D communications of UE1 triggerings, and step 71a. is not required
Step 72：RRC connections are established between UE2 and eNB2.If UE2 is in connection status, step 72 is not required.
Step 72a：RRC connections are established between UE1 and eNB1.If UE1 is in connection status, step 72a is not required.
Step 73：UE2 sends D2D service requests to eNB2, wherein the TMSI of UE2 can be carried, the D2D business letter of initiation
Breath, the location information of UE2（Location information can be report network or network positions UE after UE positioning measurements
Measurement obtains）, the contents such as other side's UE1 information.
Step 73a：UE1 sends D2D service requests to eNB1, wherein the TMSI of UE1, the D2D business initiated can be carried
The location information of information, UE1（Location information can be report network or network determines UE after UE positioning measurements
Position measurement obtains）And the contents such as other side's UE2 information.
Step 74：After eNB2 receives the D2D service requests of UE2, the D2D authentications and business of UE2 and UE1 are initiated to core net
Mapping request, business mapping are mainly the parameter that core net provides business transmission to eNB.
Step 74a：After eNB1 receives the D2D service requests of UE1, the D2D authentications and industry of UE1 and UE2 are initiated to core net
Business mapping request, business mapping are mainly the parameter that core net provides business transmission to eNB.
Step 75：Core net is authenticated and is carried out business mapping after receiving D2D service requests to UE1 and UE2.It and will mirror
Power and business mapping result are sent to eNB2.The mark of the eNB1 of UE1 ownership is sent to eNB2 simultaneously.
Step 75a：Core net is authenticated and is carried out business mapping after receiving request to UE1 and UE2.It and will authentication and industry
Business mapping result is sent to eNB1.The mark of the eNB2 of UE2 ownership is sent to eNB1 simultaneously.
Step 76：ENB1 and eNB2 consult UE1 and UE2 and carry out D2D to communicate the radio resource used, the D2D of distribution identifies,
The information such as UE transmitting-receiving configurations.ENB1 and eNB2 generates respective DSI and D2DCCH according to negotiation result.
Step 77：The D2D of distribution is identified, received and sent messages etc. by eNB2 notifies UE2 by D2D response messages.
Step 77a：The D2D of distribution is identified, received and sent messages etc. by eNB1 notifies UE1 by D2D response messages.
Step 78：ENB2 generates scheduling DSI and D2DCCH according to negotiation result.
Step 78a：UE1 and UE2 monitors the DSI and D2DCCH that eNB1 and eNB2 is sent.
Step 79：ENB2 sends DSI and D2DCCH（The radio resource that DSI and D2DCCH transmissions use notifies in SIB
UE）.
Step 79a：ENB1 sends DSI and D2DCCH（The radio resource that DSI and D2DCCH transmissions use notifies in SIB
UE）.
Step 710：UE1 and UE2 receives the information identified in DSI scheduling informations comprising the D2D of oneself, then according to scheduling
Resource location in information carries out data sending and reception.
Step 711：UE1 and UE2 carries out D2D communications on the resource location of the scheduling received.
The scheduling of more than DSI and D2DCCH, referring to Fig. 8, the repetition sending cycle of D2DCCH is that the repetition of DSI sends week
The integral multiple of phase can so ensure the continuous reception of UE.
DSI in the embodiment of the present invention can pass through medium education（MAC）The DSI MAC units of layer（CE）In take
Band, DSI MAC CE structures can be therein respectively as shown in Figure 9 and Figure 10.Pass through D2D mark for marking in DSI MAC CE
DSI dispatching cycles（DSP, DSI Scheduling Period）The D2DUE of middle transmission, by providing each D2D marks in DSP
Middle starting and ending subframe number provides corresponding D2D communication occupied sub-frame information in the DSP.
It is sent in the DSI subframes that DSI MAC CE are indicated in SIB.The UE of scheduled D2D marks is in corresponding resource-niche
Put transmission data.The bit number that each domain occupies in figure is example.Wherein change notification（D2DCCH Notification
D2DCCH, DN）Domain is used to refer to whether D2DCCH changes.Transmission direction（Direction, D）Domain is used to refer to 2 D2D
UE data transfer directions.
The resource of wherein D2D marks can be the public sons of the D2D notified in actual physical resource or D2DCCH
Frame distribution pattern（CSAP, Common Subframe Allocation Pattern）The corresponding resource index of information（index）.
To sum up, in network side, referring to Figure 11, a kind of dispatching method of equipment room D2D communications provided in an embodiment of the present invention,
Including：
S101, network side node broadcast to dispatch the information of D2D resources to user equipment (UE), including for sending
The resource information of D2D scheduling informations DSI；
S102, network side node receive the D2D service requests of UE, according to the D2D service requests of UE, are distributed when being determined as UE
During for carrying out the resource of D2D communications, UE being dispatched by DSI and carries out D2D communications
Correspondingly, in UE sides, referring to Figure 12, a kind of equipment room D2D communication means provided in an embodiment of the present invention, including：
S201, user equipment (UE) receive the information for being used to dispatch D2D resources of evolved base station eNB broadcast, including
For sending the resource information of D2D scheduling informations DSI；
S202, UE send D2D service requests to eNB, and receive D2D response messages, therefrom obtain D2D marks；
S203, UE for sending the resource information of DSI, determine to send the resource of DSI according to described, and from for sending out
It send in the resource of DSI, receives the DSI that eNB is sent；
S204, UE lead to the scheduling information of this UE, progress D2D according in the DSI that the D2D of this UE is identified and eNB is sent
Letter.
Referring to Figure 13, in network side, a kind of dispatching device of equipment room D2D communications provided in an embodiment of the present invention, including：
Scheduling resource notification unit 131, for being broadcasted to user equipment (UE) for dispatching the information of D2D resources, wherein wrapping
Include to send the resource information of D2D scheduling informations DSI；
Scheduling unit 132 for receiving the D2D service requests of UE, according to the D2D service requests of UE, divides when being determined as UE
When being used in the resource for carrying out D2D communications, UE is dispatched by DSI and carries out D2D communications.
Wherein, the scheduling resource notification unit 131 can be the transmission equipment for having transmission-receiving function.
The scheduling unit 132 can jointly be realized by processor and the transmission equipment with transmission-receiving function.
Referring to Figure 14, in UE sides, a kind of equipment room D2D communicators provided in an embodiment of the present invention, including：
Scheduling resource receiving unit 141, for receiving the information for being used to dispatch D2D resources of evolved base station eNB broadcast,
Including for sending the resource information of D2D scheduling informations DSI；
Service request unit 142 for sending D2D service requests to eNB, and receives D2D response messages, therefrom obtains
D2D is identified；
DSI receiving units 143, for, for sending the resource information of DSI, determining to send the money of DSI according to described
Source, and from for sending the resource of DSI, receive the DSI that eNB is sent；
Communication unit 144, in the DSI that is sent according to the D2D of the affiliated UE of present apparatus marks and eNB to the tune of this UE
Information is spent, carries out D2D communications.
Wherein, the scheduling resource receiving unit 141, service request unit 142 can be the transmission for having transmission-receiving function
Equipment.
DSI receiving units 143 and communication unit 144 can be by processors and the transmission equipment with transmission-receiving function is common
It realizes.
In conclusion in technical solution provided in an embodiment of the present invention, eNB is by system information to UE broadcast schedulings and public affairs
The radio resource that control information uses altogether.The UE of D2D communications knows the position of D2D scheduling and control information by reading system information
It puts, then obtains the radio resource of D2D communications by reading D2D scheduling and control information.
The embodiment of the present invention gives scheduling and the resource allocation methods of a kind of D2D communications, and gives transmitting terminal and connect
The operating process of receiving end UE, can the mode based on D2D regions, D2D in region can be managed by DCE is unified,
Can Resource Distribution and Schedule be carried out based on the mode consulted between eNB, realize the D2D communications across eNB, simplify mobile D2D
Communication is realized, and can enable D2D resources completely under network-based control, is conducive to that overall interference reduces and handling capacity carries
It rises, and the quantity for sending data between D2D UE can be taken into account there is certain uncertainty, improve the flexibility of the utilization of resources.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware can be used in the present invention
Apply the form of example.Moreover, the computer for wherein including computer usable program code in one or more can be used in the present invention
Usable storage medium（Including but not limited to magnetic disk storage and optical memory etc.）The shape of the computer program product of upper implementation
Formula.
The present invention be with reference to according to the method for the embodiment of the present invention, equipment（System）And the flow of computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
The processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction generation being stored in the computer-readable memory includes referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to generate computer implemented processing, so as in computer or
The instruction offer performed on other programmable devices is used to implement in one flow of flow chart or multiple flows 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
God and scope.In this way, if these modifications and changes of the present invention belongs to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these modification and variations.
Claims (24)
1. a kind of dispatching method of equipment room D2D communications, which is characterized in that this method includes：
Network side node broadcasts to dispatch the information of D2D resources to user equipment (UE), believes including for sending D2D scheduling
Cease the resource information of DSI；
Network side node receives the D2D service requests of UE, according to the D2D service requests of UE, distributes to carry out when being determined as UE
During the resource of D2D communications, UE is dispatched by DSI and carries out D2D communications；
It communicating for the D2D of mode of unicast, network side node receives the D2D service requests of UE, according to the D2D service requests of UE,
When being determined as resource of the UE distribution for carrying out D2D communications, UE is dispatched by DSI and carries out D2D communications, including:
Network side node receives the D2D service requests of the first UE and the 2nd UE respectively, is passed through according to the D2D service requests of the first UE
Core net authenticates and obtains the business configured transmission of the D2D business of request to the first UE, when the authentication is passed, is
First UE distribution D2D marks, the first UE is sent to by D2D response messages；Core is passed through according to the D2D service requests of the 2nd UE
Net authenticates and obtains the business configured transmission of the D2D business of request to the 2nd UE, is second when the authentication is passed
UE distribution D2D marks, the 2nd UE is sent to by D2D response messages.
2. it according to the method described in claim 1, it is characterized in that, communicates for the D2D of mode of unicast, network side node receives
The D2D service requests of UE according to the D2D service requests of UE, when being determined as resource of the UE distribution for carrying out D2D communications, are led to
It crosses DSI scheduling UE and carries out D2D communications, further include:
Using D2D service requests, the business configured transmission of the first UE and the 2nd UE, the distribution for being the first UE and the 2nd UE is used
In the resource for carrying out D2D communications, DSI is generated, and the first UE and the 2nd UE are sent to by the eNB each serviced respectively.
3. according to the method described in claim 1, it is characterized in that, network side node leads to according to the D2D service requests of the first UE
Cross the step of core net authenticates the first UE, with the D2D service requests according to the 2nd UE by core net to this second
The step of UE is authenticated performs simultaneously.
4. according to the method described in claim 1, it is characterized in that, network side node distributes D2D marks for the first UE, and for the
Two UE distribution D2D marks are identical.
5. according to the method described in claim 1, it is characterized in that, this method further includes：Network side node reflects when to the first UE
When power passes through, communication direction mark is distributed for the first UE, communication direction mark should be distributed for the first UE with being that the first UE distributes D2D
Mark is sent to the first UE by D2D response messages simultaneously；
Network side node distributes communication direction mark when the authentication is passed to the 2nd UE, for the 2nd UE, should be logical for the 2nd UE distribution
Letter direction signs are sent to the 2nd UE by D2D response messages simultaneously with distributing D2D marks for the 2nd UE.
It is 6. described for dispatching according to the method described in claim 1, it is characterized in that, communicate for the D2D of broadcast mode
The information of D2D resources, further includes：For sending the resource information of D2D control channels D2DCCH；
When the network side node is determined as resource of the UE distribution for carrying out D2D communications, the network side node is also to UE
Send D2DCCH.
7. according to the method described in claim 6, it is characterized in that, network side node receives the D2D service requests of UE, according to UE
D2D service requests, when being determined as UE resources of the distribution for carrying out D2D communications, DSI and D2DCCH is sent to UE, including:
Network side node receives the D2D service requests of transmitting terminal UE, according to the D2D service requests by core net to the transmitting terminal
UE is authenticated and is obtained the business configured transmission of the D2D business of request, and when the authentication is passed, D2D is distributed for transmitting terminal UE
Mark, transmitting terminal UE is sent to by D2D response messages；
Using the D2D service requests, business configured transmission, distribute to carry out the resource of D2D communications, generation for transmitting terminal UE
DSI and D2DCCH, and pass through eNB and be sent to transmitting terminal UE and receiving terminal UE.
8. according to the method described in any claims of claim 1-7, which is characterized in that the network side node is pre-set
For the D2D coordination entities DCE or evolved base station eNB being managed to the D2D communications in D2D regions.
9. according to the method described in claim 8, it is characterized in that, when the network side node is DCE, DCE is according to UE's
Location information determines eNB, and passes through the definite eNB and broadcast DSI to UE.
10. a kind of equipment room D2D communication means, which is characterized in that this method includes：
User equipment (UE) receive evolved base station eNB broadcast for dispatching the information of D2D resources, including for sending
The resource information of D2D scheduling informations DSI；
UE sends D2D service requests to eNB, and receives D2D response messages, therefrom obtains D2D marks；
UE for sending the resource information of DSI, determines to send the resource of DSI according to described, and from for sending the money of DSI
On source, the DSI that eNB is sent is received；
UE in the DSI that the D2D of this UE is identified and eNB is sent according to, to the scheduling information of this UE, carrying out D2D communications.
11. it according to the method described in claim 10, it is characterized in that, communicates for the D2D of mode of unicast, the UE includes phase
The first UE and the 2nd UE of D2D business data transmissions are carried out between mutually.
12. according to the method described in claim 10, it is characterized in that, for broadcast mode D2D communicate, transmitting terminal UE to
ENB sends D2D service requests, and receives D2D response messages, therefrom obtains D2D marks；
Transmitting terminal UE in the DSI that the D2D of this UE is identified and eNB is sent according to, to the scheduling information of transmitting terminal UE, sending D2D
Business datum；The DSI that receiving terminal UE is broadcasted according to eNB, selection receive D2D business datums.
13. a kind of dispatching device of equipment room D2D communications, which is characterized in that the device includes：
Scheduling resource notification unit, for broadcasting to dispatch the information of D2D resources to user equipment (UE), including for sending out
Send the resource information of D2D scheduling informations DSI；
Scheduling unit, for receiving the D2D service requests of UE, according to the D2D service requests of UE, when be determined as UE distribution for into
During the resource of row D2D communications, UE is dispatched by DSI and carries out D2D communications；
It communicates for the D2D of mode of unicast, the scheduling unit receives the D2D service requests of the first UE and the 2nd UE, root respectively
The first UE is authenticated and is obtained by core net according to the D2D service requests of the first UE the business of the D2D business of request
Configured transmission when the authentication is passed, distributes D2D marks for the first UE, the first UE is sent to by D2D response messages；According to
The business that the D2D service requests of two UE were authenticated and obtained the D2D business of request to the 2nd UE by core net is transmitted
Parameter when the authentication is passed, distributes D2D marks for the 2nd UE, the 2nd UE is sent to by D2D response messages.
14. device according to claim 13, which is characterized in that it communicates for the D2D of mode of unicast, the scheduling unit
D2D service requests, the business configured transmission using the first UE and the 2nd UE are additionally operable to, is the distribution of the first UE and the 2nd UE
For carrying out the resource of D2D communications, DSI is generated, and the first UE and the 2nd UE are sent to by the eNB each serviced respectively.
15. device according to claim 13, which is characterized in that the scheduling unit is in the D2D business according to the first UE
While request authenticates the first UE by core net, according to the D2D service requests of the 2nd UE by core net to this
2nd UE is authenticated.
16. device according to claim 13, which is characterized in that the scheduling unit distributes D2D marks for the first UE, with
It is identical that D2D marks are distributed for the 2nd UE.
17. device according to claim 13, which is characterized in that the scheduling unit is additionally operable to：It is authenticated when to the first UE
By when, for the first UE distribute communication direction mark, should for the first UE distribute communication direction mark be the first UE distribute D2D mark
Know and the first UE is sent to by D2D response messages simultaneously；
When the authentication is passed to the 2nd UE, communication direction mark is distributed for the 2nd UE, communication direction mark should be distributed for the 2nd UE
The 2nd UE is sent to by D2D response messages simultaneously with distributing D2D marks for the 2nd UE.
18. device according to claim 13, which is characterized in that it communicates for the D2D of broadcast mode, it is described to be used to dispatch
The information of D2D resources, further includes：For sending the resource information of D2D control channels D2DCCH；
When the scheduling unit is determined as resource of the UE distribution for carrying out D2D communications, the scheduling unit is also sent to UE
D2DCCH。
19. device according to claim 18, which is characterized in that the scheduling unit receives the D2D business of transmitting terminal UE
Request is authenticated and obtained the D2D business of request to transmitting terminal UE by core net according to the D2D service requests
Business configured transmission when the authentication is passed, distributes D2D marks for transmitting terminal UE, transmitting terminal is sent to by D2D response messages
UE；Using the D2D service requests, business configured transmission, distribute to carry out the resource of D2D communications, generation for transmitting terminal UE
DSI and D2DCCH, and pass through eNB and be sent to transmitting terminal UE and receiving terminal UE.
20. according to the device described in any claims of claim 13-19, which is characterized in that described device is pre-set use
In the D2D coordination entities DCE or evolved base station eNB that are managed to the D2D communications in D2D regions.
21. device according to claim 20, which is characterized in that when described device be DCE when, the scheduling unit according to
The location information of UE determines eNB, and passes through the definite eNB and broadcast DSI to UE.
22. a kind of equipment room D2D communicators, which is characterized in that the device includes：
Scheduling resource receiving unit, for receiving the information for being used to dispatch D2D resources of evolved base station eNB broadcast, wherein wrapping
Include to send the resource information of D2D scheduling informations DSI；
Service request unit for sending D2D service requests to eNB, and receives D2D response messages, therefrom obtains D2D marks；
DSI receiving units for sending the resource information of DSI according to described, determine to send the resource of DSI, and from
For sending the resource of DSI, the DSI that eNB is sent is received；
Communication unit, in the DSI that is sent according to the D2D of the affiliated UE of present apparatus marks and eNB to the scheduling information of this UE,
Carry out D2D communications.
23. device according to claim 22, which is characterized in that it communicates for the D2D of mode of unicast, the communication unit
To the scheduling information of this UE in the DSI sent according to the D2D of the affiliated UE of present apparatus marks and eNB, carried out between another UE
D2D business datums send and receive.
24. device according to claim 22, which is characterized in that communicate for the D2D of broadcast mode, when described device institute
When the UE of category is transmitting terminal UE, to the transmitting terminal in the DSI that the communication unit is sent according to the D2D of this UE marks and eNB
The scheduling information of UE sends D2D business datums；When the UE belonging to described device be receiving terminal UE when, the communication unit according to
The DSI of eNB broadcast, selection receive D2D business datums.
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| CN104661177B (en) * | 2015-03-12 | 2018-05-15 | 深圳酷派技术有限公司 | A kind of method, system and equipment for realizing D2D communications |
| WO2016154857A1 (en) * | 2015-03-30 | 2016-10-06 | 华为技术有限公司 | D2d unicast communication method, device and system |
| JP6639673B2 (en) | 2016-02-05 | 2020-02-05 | オッポ広東移動通信有限公司 | Peer-to-peer data transmission method, apparatus and system |
| JP6709291B2 (en) * | 2016-03-25 | 2020-06-10 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ | Improved radio resource allocation for vehicular communications |
| CN106793109B (en) * | 2016-11-11 | 2020-03-24 | 工业和信息化部电信研究院 | Terminal direct connection unicast control method for mobile communication |
| CN110971354B (en) * | 2018-09-28 | 2022-07-15 | 大唐移动通信设备有限公司 | Unicast transmission method, configuration method, terminal and network side equipment |
| CN111278165B (en) * | 2019-01-11 | 2022-01-28 | 维沃移动通信有限公司 | Connection establishing method, terminal equipment and network equipment |
| CN112118542B (en) * | 2019-06-21 | 2022-03-29 | 中国移动通信有限公司研究院 | Multicast processing method, device and communication equipment |
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| WO2010139847A1 (en) * | 2009-06-04 | 2010-12-09 | Nokia Corporation | Effective labeling of subframes based on device-to-device transmission in cellular downlink spectrums |
| CN102792745B (en) * | 2009-12-11 | 2015-05-13 | 诺基亚公司 | Method, apparatus and computer program product for allocating resources in wireless communication network |
| CN102647801A (en) * | 2011-02-18 | 2012-08-22 | 华为技术有限公司 | Communication method and equipment on common control channel (CCCH) |
| US8848700B2 (en) * | 2011-09-30 | 2014-09-30 | Electronics And Telecommunications Research Institute | Method for device-to-device communication based on cellular telecommunication system |
| CN102638893B (en) * | 2012-03-31 | 2014-09-10 | 南京邮电大学 | Base-station (BS)-combined direct-through terminal optimized resource allocation method in direct-through cellular system |
| CN103024911A (en) * | 2012-11-30 | 2013-04-03 | 北京邮电大学 | Data transmission method of terminal direct communication in cellular and D2D hybrid network |
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