CN104469961A - Device-to-device communication method, device and system - Google Patents

Device-to-device communication method, device and system Download PDF

Info

Publication number
CN104469961A
CN104469961A CN201310443341.1A CN201310443341A CN104469961A CN 104469961 A CN104469961 A CN 104469961A CN 201310443341 A CN201310443341 A CN 201310443341A CN 104469961 A CN104469961 A CN 104469961A
Authority
CN
China
Prior art keywords
control information
communication
equipment
communication data
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201310443341.1A
Other languages
Chinese (zh)
Inventor
吴栓栓
梁枫
袁弋非
陈琳
杨瑾
袁明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CN201310443341.1A priority Critical patent/CN104469961A/en
Priority to PCT/CN2014/084814 priority patent/WO2015043341A1/en
Publication of CN104469961A publication Critical patent/CN104469961A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Abstract

The invention discloses a device-to-device (D2D) communication method, device and system. A second device sends a dispatching request for D2D communication to a first device, and D2D communication data transmission is carried out based on the dispatching of the second device; the first device responds to the dispatching request and sends control information to dispatch the second device to carry out D2D communication data transmission; a third device detects the control information sent by the first device and receives the D2D communication data sent by the second device based on the control information. By means of the device-to-device communication method, device and system, the communication problem among the devices is solved, and compatibility of device-to-device communication and cellular communication are guaranteed; in addition, the device-to-device communication method, device and system can be suitable for device-to-device communication with a unicasting or broadcasting or multicasting mode or other broadcasting modes.

Description

A kind of communication means of device-to-device, equipment and system
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of communication means of device-to-device, equipment and system.
Background technology
In a cellular communication system, as two subscriber equipment (UE, User Equipment) between when having business to transmit, such as, the business datum of UE1 to UE2, first by air interface transmission to the base station of community, UE1 place (Base Station, be called for short NodeB or evolution (evolved) NodeB), this base station by core net by business data transmission to the base station of community, UE2 place, the base station of community, UE2 place again by above-mentioned business datum by air interface transmission to UE2.The business data transmission of UE2 to UE1 adopts similar handling process.As shown in Figure 1a, when UE1 and UE2 is positioned at same cellular cell, although two UE are by the MPS process of same base station, still need by core net transfer during transfer of data, and a data transfer still can consume two parts of radio spectrum resources.
As can be seen here, if UE1 and UE2 is positioned at same community and at a distance of comparatively near, so above-mentioned cellular communication method is not obviously optimum.Such as, and in fact, along with the variation of mobile communication business, the application such as social networks, E-Payment in a wireless communication system universal, makes the business closely between user transmit demand growing.Therefore, the communication pattern of device-to-device (D2D, Device-to-Device) is subject to extensive concern day by day.As shown in Figure 1 b, D2D refers to the forwarding of business datum without base station and core net, directly by source user equipment by air interface transmission to target UE, also can be referred to as adjacent service (ProSe, Proximity Service).For the user of short-range communication, D2D not only saves radio spectrum resources, and reduces the transfer of data pressure of core net.
In D2D communication, the receiving terminal of D2D business datum may be single UE, also may be multiple UE, namely also D2D communication may be clean culture (Unicast) communication, also may be broadcast communication (Broadcast) or multicast (Groupcast or Group Communication) or multicast (Multicast) communication.In the consideration of D2D communication plan, the support for above-mentioned communication pattern all needs to consider, this is also technical problem urgently to be resolved hurrily at present.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of communication means of device-to-device, equipment and system, to solve the communication issue between device-to-device.
For achieving the above object, technical scheme of the present invention is achieved in that
A communication means of device-to-device D2D, be applied to the second equipment, the method comprises:
Dispatch request is sent, the scheduling of described dispatch request for asking D2D to communicate to the first equipment;
Receive the control information from described first equipment, described control information is for dispatching the transmission of D2D communication data;
D2D communication data is sent to the 3rd equipment according to described control information.
Preferably, described control information has specific identifier, and described specific identifier is for marking the transmitting apparatus of D2D radio bearer or D2D business or described D2D communication data;
And, when there is many group control informations, the control information of described many groups is carried out multiplexing at high level, and wherein often organize the scheduling that control information is used for the transmitting apparatus of each D2D radio bearer or D2D business or described D2D communication data, the described specific identifier of different group control information is different.
Preferably, described control information is radio resource control information, and is mapped in Physical Downlink Shared Channel and transmits;
The Physical Downlink Control Channel being used to indicate described Physical Downlink Shared Channel transmits in Catalog Search space or specific search space, and wherein, the cyclic redundancy check bits position of described Physical Downlink Control Channel is by the scrambling of ad Hoc wireless network temporary mark.
Preferably, described control information comprise following parameter one of at least:
For the assignment information of the time-domain resource that described D2D communicates;
For the assignment information of the frequency domain resource that described D2D communicates;
The modulation coding mode of described D2D communication data;
Carry out the Timing Advance of described D2D communication;
Carry out the power contorl parameters of described D2D communication.
Preferably, describedly send D2D communication data according to control information to the 3rd equipment and comprise:
According to the initial sum of the downlink radio frame of correspondence, Timing Advance is determined to send the described radio frames of D2D communication data and/or the initial of subframe, and according to the described radio frames of described initial transmission and/or subframe.
Preferably, before the control information of described reception from the first equipment, the method also comprises:
Receive the D2D configuration information that described first equipment sends, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission.
Preferably, described dispatch request is physical layer signaling, is sent by special Physical Uplink Control Channel, and described special Physical Uplink Control Channel is the channel being exclusively used in the transmission of D2D communication control information; Or,
Described dispatch request is high-level signaling, sends with the form of radio resource control information or medium access control message.
A communication means of device-to-device D2D, the method is applied to the first equipment, and the method comprises:
Receiving scheduling request, described dispatch request is sent by the second equipment, the scheduling of described dispatch request for asking D2D to communicate;
In response to described dispatch request, send control information to described second equipment, described control information is for dispatching the transmission of D2D communication data.
Preferably, described control information has specific identifier, and described specific identifier is for marking the transmitting apparatus of D2D radio bearer or D2D business or described D2D communication data;
And, when there is many group control informations, the control information of described many groups is carried out multiplexing at high level, and wherein often organize the scheduling that control information is used for each D2D radio bearer or D2D business or described D2D communication data transmitting apparatus, the described specific identifier of different group control information is different.
Preferably, described control information is radio resource control information, and is mapped in Physical Downlink Shared Channel and transmits;
The Physical Downlink Control Channel being used to indicate described Physical Downlink Shared Channel transmits in Catalog Search space or specific search space, and wherein, the cyclic redundancy check bits position of described Physical Downlink Control Channel is by the scrambling of ad Hoc wireless network temporary mark.
Preferably, described control information comprise following parameter one of at least:
For the time-domain resource assignment information that described D2D communicates;
For the frequency domain resource assignment information that described D2D communicates;
The modulation coding mode of described D2D communication data;
Carry out the Timing Advance of described D2D communication;
Carry out the power contorl parameters of described D2D communication.
Preferably, described to send control information to the second equipment before, the method also comprises:
Send D2D configuration information;
Wherein, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission; Or, at least comprise D2D parameter channel configuration in described configuration information, described D2D parameter channel configuration be used to indicate following one of at least:
The time-domain of D2D communication data transfer and/or frequency domain Radio Resource position;
The modulation coding mode of D2D communication data transfer;
Carry out the Timing Advance of described D2D communication.
A communication means of device-to-device D2D, the method is applied to the 3rd equipment, and the method comprises:
Detect the Physical Downlink Control Channel marked by ad Hoc wireless network temporary mark that the first equipment sends;
Receive the Physical Downlink Shared Channel of described first equipment transmission according to the instruction of described Physical Downlink Control Channel, described Physical Downlink Shared Channel is used for control information transmission, and described control information is radio resource control information, for dispatching D2D communication;
The D2D communication data of the second equipment transmission is received according to described control information.
Preferably, described control information has specific identifier, and described specific identifier is for marking the transmitting apparatus of D2D radio bearer or D2D business or described D2D communication data;
And, when there is many group control informations, the control information of described many groups is carried out multiplexing at high level, and wherein often organize the scheduling that control information is used for the transmitting apparatus of each D2D radio bearer or D2D business or described D2D communication data, the described specific identifier of different group control information is different.
Preferably, described control information comprise following parameter one of at least:
For the time-domain resource assignment information that described D2D communicates;
For the frequency domain resource assignment information that described D2D communicates;
The modulation coding mode of described D2D communication data;
Carry out the Timing Advance of described D2D communication;
Carry out the power contorl parameters of described D2D communication.
Preferably, described according to control information receive second equipment send D2D communication data comprise:
According to the initial sum of the downlink radio frame of correspondence, Timing Advance is determined to receive the described radio frames of D2D communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe.
Preferably, before the described Physical Downlink Control Channel of detection, the method also comprises:
Receive the D2D configuration information that described first equipment sends, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission.
A communication means of device-to-device D2D, the method is applied to the 3rd equipment, and the method comprises:
Detect the D2D configuration information that the first equipment sends, at least comprise the parameter channel configuration of D2D communication in described configuration information, described parameter channel configuration be used to indicate following one of at least: the time-domain of D2D communication data transfer and/or frequency domain Radio Resource position; The modulation coding mode of D2D communication data, carries out the Timing Advance of described D2D communication;
The D2D communication data of the second equipment transmission is received according to described configuration information.
Preferably, described according to control information receive second equipment send D2D communication data comprise:
According to the initial sum of the downlink radio frame of correspondence, Timing Advance is determined to receive the described radio frames of D2D communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe.
A kind of second equipment, comprising:
First communication module, for the first devices communicating, comprise and send dispatch request to the first equipment, and receive from the control information of described first equipment; Wherein, the scheduling of described dispatch request for asking D2D to communicate, described control information is for dispatching the transmission of D2D communication data;
Second communication module, connects described first communication module, for the 3rd devices communicating, comprise and send D2D communication data according to the control information received from described first equipment to described 3rd equipment.
Preferably, described control information has specific identifier, and described specific identifier is for marking the transmitting apparatus of D2D radio bearer or D2D business or described D2D communication data;
And, when there is many group control informations, the control information of described many groups is carried out multiplexing at high level, and wherein often organize the scheduling that control information is used for the transmitting apparatus of each D2D radio bearer or D2D business or described D2D communication data, the described specific identifier of different group control information is different.
Preferably, described control information is radio resource control information, and is mapped in Physical Downlink Shared Channel and transmits; The Physical Downlink Control Channel being used to indicate described Physical Downlink Shared Channel transmits in Catalog Search space or specific search space, and wherein, the cyclic redundancy check bits position of described Physical Downlink Control Channel is by the scrambling of ad Hoc wireless network temporary mark.
Preferably, described first communication module is further used for, before receiving the control information from the first equipment, receive the D2D configuration information that described first equipment sends, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission.
A kind of first equipment, comprising:
Third communication module, for receiving the dispatch request that the second equipment sends, and in response to described dispatch request, sends control information to described second equipment; Wherein, the scheduling of described dispatch request for asking D2D to communicate, described control information is for dispatching the transmission of D2D communication data.
Preferably, described third communication module is further used for, and before sending control information to described second equipment, sends D2D configuration information;
Wherein, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission; Or, at least comprise D2D parameter channel configuration in described configuration information, described D2D parameter channel configuration be used to indicate following one of at least:
The time-domain of D2D communication data transfer and/or frequency domain Radio Resource position;
The modulation coding mode of D2D communication data transfer;
Carry out the Timing Advance of described D2D communication.
A kind of 3rd equipment, comprising:
4th communication module, for with the first devices communicating, comprise: detect the Physical Downlink Control Channel marked by ad Hoc wireless network temporary mark that the first equipment sends, the Physical Downlink Shared Channel of described first equipment transmission is received according to the instruction of described Physical Downlink Control Channel, described Physical Downlink Shared Channel is used for control information transmission, described control information is radio resource control information, for dispatching D2D communication;
5th communication module, for the second devices communicating, comprise according to described control information receive second equipment send D2D communication data.
Preferably, described control information comprise following parameter one of at least:
For the time-domain resource assignment information that described D2D communicates;
For the frequency domain resource assignment information that described D2D communicates;
The modulation coding mode of described D2D communication data;
Carry out the Timing Advance of described D2D communication;
Carry out the power contorl parameters of described D2D communication.
Preferably, described 5th communication module is further used for, according to the initial sum of the downlink radio frame of correspondence, Timing Advance is determined to receive the described radio frames of D2D communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe.
Preferably, described 4th communication module is further used for, before the described Physical Downlink Control Channel of detection, receive the D2D configuration information that described first equipment sends, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission.
A kind of 3rd equipment, comprising:
6th communication module, for with the first devices communicating, comprise the D2D configuration information that detection first equipment sends, at least comprise the parameter channel configuration of D2D communication in described configuration information, described parameter channel configuration be used to indicate following one of at least: the time-domain of D2D communication data transfer and/or frequency domain Radio Resource position; The modulation coding mode of D2D communication data, carries out the Timing Advance of described D2D communication;
7th communication module, for the second devices communicating, comprise according to described configuration information receive second equipment send D2D communication data.
Preferably, described 7th communication module is further used for, according to the initial sum of the downlink radio frame of correspondence, Timing Advance is determined to receive the described radio frames of D2D communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe.
A communication system of device-to-device D2D, comprises aforesaid first equipment, the second equipment and the 3rd equipment.
The communication means of a kind of device-to-device provided by the present invention, equipment and system, solve the communication issue between device-to-device, ensure that the compatibility of device-to-device communication and cellular communication; Further, the device-to-device that the embodiment of the present invention can be applicable to clean culture and broadcast and the multicast such as multicast simultaneously communicates, and this harmonized programme contributes to the simplification of system and the complexity of reduction equipment realization.
Accompanying drawing explanation
Fig. 1 a is the cellular communication schematic diagram of the UE being positioned at same base station cell in correlation technique;
Fig. 1 b is the D2D communication scheme of the UE being positioned at same base station cell in correlation technique;
Fig. 2 is the schematic diagram of Radio Resource structure in correlation technique;
Fig. 3 is the flow chart one of the D2D communication means of the embodiment of the present invention;
Fig. 4 is the flowchart 2 of the D2D communication means of the embodiment of the present invention;
Fig. 5 is the flow chart 3 of the D2D communication means of the embodiment of the present invention;
Fig. 6 is the flow chart four of the D2D communication means of the embodiment of the present invention;
Fig. 7 is the structural representation of the second equipment of the embodiment of the present invention;
Fig. 8 is the structural representation of the first equipment of the embodiment of the present invention;
Fig. 9 is the structural representation of the 3rd equipment of the embodiment of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the present invention is further elaborated.
The embodiment of the present invention is applicable to cellular radio Communication system or network, and be also applicable to the scene that cellular network facilities lacks or damages, namely subscriber equipment cannot access cellular network or cannot connect with cellular network simultaneously.
Common cellular radio Communication system can based on code division multiple access (CDMA, Code DivisionMultiplexing Access) technology, frequency division multiple access (FDMA, Frequency Division MultiplexingAccess) technology, OFDM (OFDMA, Orthogonal-FDMA) technology, single-carrier frequency division multiple access (SC-FDMA, Single Carrier-FDMA) technology etc.Such as, third generation partner program (3GPP, 3rd Generation Partnership Project) Long Term Evolution (LTE, Long TermEvolution)/senior Long Term Evolution (LTE-A, LTE-Advanced) cellular communication system down link (or being called forward link) is based on OFDMA technology, and up link (or being called reverse link) is based on SC-FDMA multiple access technology.Following then likely support on a link mix multiple access technology.
In OFDMA/SC-FDMA system, when the Radio Resource (Radio Resource) for communicating is-form of frequency bidimensional.Such as, for LTE/LTE-A system, the communication resource of uplink and downlink link is all for unit divides with radio frames (radio frame) on time orientation, each radio frames (radioframe) length is 10ms, comprise the subframe (sub-frame) that 10 length are 1ms, each subframe comprises two time slots (slot) that length is 0.5ms.And different according to the configuration of Cyclic Prefix (CP, Cyclic Prefix), each time slot can comprise 6 or 7 OFDM or SC-FDM symbols.
In frequency direction, resource with subcarrier (subcarrier) for unit divide, specifically in the communications, the least unit that frequency domain resource is distributed is Resource Block (RB, Resource Block), a Physical Resource Block (PRB, Physical RB) of corresponding physical resource.A PRB comprises 12 subcarriers (sub-carrier) at frequency domain, corresponding to a time slot (slot) of time domain.On each OFDM/SC-FDM symbol, the resource of a corresponding subcarrier is called Resource Unit (RE, Resource Element).As shown in Figure 2.
In LTE/LTE-A cellular communication, the business datum of uplink and downlink link is at shared channel (SharedChannel), Physical Uplink Shared Channel (PUSCH is respectively in physical layer, Physical Uplink SharedChannel) and Physical Downlink Shared Channel (PDSCH, Physical Downlink Shared Channel).Transfer of data in PUSCH and PDSCH all needs the scheduling of control information, control information is carried on Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel) or strengthen PDCCH(Enhanced-PDCCH, EPDCCH) in; The running time-frequency resource position of PDCCH is fixing, concrete size is by Physical Control Format Indicator Channel (PCFICH, Physical Control Format IndicatorChannel) instruction, the running time-frequency resource position of EPDCCH is indicated by wireless heterogeneous networks (RRC, Radio ResourceControl) message.
A kind of D2D communication means that the embodiment of the present invention provides, be applied to the second equipment, as shown in Figure 3, the method comprises:
Step 301, send dispatch request to the first equipment, described dispatch request is for asking the scheduling of D2D communication service.
Dispatch request is can physical layer signaling, is sent, the described special transmission that described Physical Uplink Control Channel is exclusively used in device-to-device communication control information that refers to by special Physical Uplink Control Channel; Or described dispatch request is high-level signaling, send with the form of radio resource control information or medium access control message.
Step 302, receives the control information from described first equipment, and described control information is for dispatching the transmission of D2D communication data.
Preferably, described control information has specific identifier, and described specific identifier is for marking the transmitting apparatus of D2D radio bearer or D2D business or described D2D communication data;
And, when there is many group control informations, the control information of described many groups is carried out multiplexing at high level, and wherein often organize the scheduling that control information is used for the transmitting apparatus of each D2D radio bearer or D2D business or described D2D communication data, the described specific identifier of different group control information is different.Described high level refers to the protocol layer on physical layer in access network protocol stack (PHY), such as MAC layer, or rrc layer etc.Below describe similar, no longer repeat.
Preferably, described control information is radio resource control information, and is mapped in PDSCH and transmits; The control information being used to indicate described PDSCH can be carried by Downlink Control Information (DCI) form, described DCI sends in PDCCH or EPDCCH, and its cyclic redundancy check (CRC) bit is by special Radio Network Temporary Identifier (RNTI, Radio Network Temporary Identifier) scrambling.Specially refer to that it is exclusively used in device-to-device communication, or be exclusively used in the group of user equipments of specific device-to-device communication, or be exclusively used in specific device-to-device communication service.This special RNTI can adopt the mode of agreement to determine, such as, arrange the value of this special RNTI between devices; Or, also can by the first Equipments Setting, such as the first Equipments Setting also indicates the value of this special RNTI by signaling.
Wherein, described control information is transmitted and is referred in PDSCH, described control information is finally mapped in Physical Downlink Shared Channel to be transmitted, and this wherein may comprise the channel mapping between protocol layer, such as carry the mapping logical channels of described control information to transmission channel, this transmission channel is mapped to PDSCH further.Here logic channel can be D2D communication control information Dedicated Control Channel (D2D ControlChannel).Below describe similar, no longer repeat.
Preferably, the specific mark of described control information is for distinguishing the transmitting apparatus of different device-to-device radio bearers (Radio Bearer) or device-to-device communication service or D2D communication.Such as described mark can be Logic Channel Identifier (LCID, Logical Channel ID), or device identification, or service identification, or other identification information, or the combination of above-mentioned mark.Or described specific mark can be the parameter be included in described control information.Described mark can be agreement or obtain from the first equipment.When the specific identifier of the control information that subscriber equipment detects associates with self or self specific transactions or radio bearer, then subscriber equipment according to the instruction transmitting apparatus of this control information to equipment traffic data.
Preferably, described control information comprise following parameter one of at least:
For the assignment information of the time-domain resource that described D2D communicates;
For the assignment information of the frequency domain resource that described D2D communicates;
The modulation coding mode (MCS, Modulation and CodingScheme) of described D2D communication data;
Carry out the Timing Advance of described D2D communication;
Carry out the power contorl parameters of described D2D communication.
Step 303, sends D2D communication data according to described control information to the 3rd equipment.
Describedly send D2D communication data according to control information to the 3rd equipment and comprise:
The initial of downlink radio frame according to correspondence is determined to send the described radio frames of device-to-device communication data and/or the initial of subframe, and according to the described radio frames of described initial transmission and/or subframe;
Or the Timing Advance according to this transmitting apparatus of initial sum self of the downlink radio frame of correspondence is determined to send the described radio frames of D2D communication data and/or the initial of subframe, and according to the described radio frames of described initial transmission and/or subframe;
Or the Timing Advance indicated in control information according to the initial sum of the downlink radio frame of correspondence is determined to send the described radio frames of device-to-device communication data and/or the initial of subframe, and according to the described radio frames of described initial transmission and/or subframe.
Preferably, before the control information of described reception from the first equipment, the method also comprises: receive the D2D configuration information that described first equipment sends, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission.Described D2D configuration information can be included in RRC information, is sent by the form of broadcast.
It should be noted that, the first equipment described in the embodiment of the present invention can be to provide the network equipment of access function.In cellular radio Communication system, the network equipment of access function is provided to be commonly referred to as base station (basestation, or be called equipment B or NodeB), or the equipment B of evolution (evolved Node B, eNB), or strengthen equipment B (enhanced Node B, eNB)).Base station mentioned here also comprises the low-power equipment (LPN, Low Power Node) in network, such as Femto cell or Home eNodeB (pico, Relay, femto, HeNB and Home eNB etc.).First equipment also can be temporal deployment for the communication supervisory network equipment of D2D, such as, when access network damages.First equipment can also be subscriber equipment (UE), such as, during the such as access network damage of some specific scene.Second equipment is the business transmitting terminal UE of D2D communication, and the 3rd equipment is the business receiving terminal UE of D2D communication.
The embodiment of the present invention also provides the communication means of a kind of D2D, is applied to the first equipment, and as shown in Figure 4, the method comprises:
Step 401, receiving scheduling request, described dispatch request is sent by the second equipment, the scheduling of described dispatch request for asking D2D to communicate.
Described control information has specific identifier, and described specific identifier is for marking the transmitting apparatus of D2D radio bearer or D2D business or described D2D communication data;
And, when there is many group control informations, the control information of described many groups is carried out multiplexing at high level, and wherein often organize the scheduling that control information is used for each D2D radio bearer or D2D business or described D2D communication data transmitting apparatus, the described specific identifier of different group control information is different.
Step 402, in response to described dispatch request, send control information to described second equipment, described control information is for dispatching the transmission of D2D communication data.
Described control information is radio resource control information, and is mapped in Physical Downlink Shared Channel and transmits; The Physical Downlink Control Channel being used to indicate described Physical Downlink Shared Channel transmits in Catalog Search space or specific search space, and wherein, the cyclic redundancy check bits position of described Physical Downlink Control Channel is by the scrambling of ad Hoc wireless network temporary mark.
Described control information comprise following parameter one of at least:
For the time-domain resource assignment information that described D2D communicates;
For the frequency domain resource assignment information that described D2D communicates;
The modulation coding mode of described D2D communication data;
Carry out the Timing Advance of described D2D communication;
Carry out the power contorl parameters of described D2D communication.
Preferably, described to send control information to the second equipment before, the method also comprises:
Send D2D configuration information;
Wherein, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission; Or, at least comprise D2D parameter channel configuration in described configuration information, described D2D parameter channel configuration be used to indicate following one of at least:
The time-domain of D2D communication data transfer and/or frequency domain Radio Resource position;
The modulation coding mode of D2D communication data transfer;
Carry out the Timing Advance that described D2D communicates.
Described D2D configuration information can be included in RRC information, is sent by the form of broadcast.
The embodiment of the present invention also provides the communication means of a kind of D2D, and be applied to the 3rd equipment, as shown in Figure 5, the method comprises:
Step 501, detects the Physical Downlink Control Channel marked by ad Hoc wireless network temporary mark that the first equipment sends.
Described control information has specific identifier, and described specific identifier is for marking the transmitting apparatus of D2D radio bearer or D2D business or described D2D communication data;
And, when there is many group control informations, the control information of described many groups is carried out multiplexing at high level, and wherein often organize the scheduling that control information is used for the transmitting apparatus of each D2D radio bearer or D2D business or described D2D communication data, the described specific identifier of different group control information is different.
Step 502, the Physical Downlink Shared Channel of described first equipment transmission is received according to the instruction of described Physical Downlink Control Channel, described Physical Downlink Shared Channel is used for control information transmission, and described control information is radio resource control information, for dispatching D2D communication.
Described control information comprise following parameter one of at least:
For the time-domain resource assignment information that described D2D communicates;
For the frequency domain resource assignment information that described D2D communicates;
The modulation coding mode of described D2D communication data;
Carry out the Timing Advance of described D2D communication;
Carry out the power contorl parameters of described D2D communication.
Step 503, receives the D2D communication data of the second equipment transmission according to described control information.
Described according to control information receive second equipment send D2D communication data comprise:
The initial of downlink radio frame according to correspondence is determined to receive the described radio frames of device-to-device communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe;
Or the Timing Advance according to this transmitting apparatus of initial sum self of the downlink radio frame of correspondence is determined to receive the described radio frames of D2D communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe;
Or the Timing Advance indicated in control information according to the initial sum of the downlink radio frame of correspondence is determined to receive the described radio frames of device-to-device communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe.
Preferably, before the described Physical Downlink Control Channel of detection, the method also comprises: receive the D2D configuration information that described first equipment sends, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission.Accordingly, Physical Downlink Control Channel described in the time-domain transmitted in described control information of the 3rd equipment and/or frequency domain Radio Resource position probing.
The embodiment of the present invention also provides the communication means of a kind of D2D, and be applied to the 3rd equipment, as shown in Figure 6, the method comprises:
Step 601, detect the D2D configuration information that the first equipment sends, at least comprise the parameter channel configuration of D2D communication in described configuration information, described parameter channel configuration be used to indicate following one of at least: the time-domain of D2D communication data transfer and/or frequency domain Radio Resource position; The modulation coding mode of D2D communication data, carries out the Timing Advance of described D2D communication.
Step 602, receives the D2D communication data of the second equipment transmission according to described configuration information.
Described according to control information receive second equipment send D2D communication data comprise:
The initial of downlink radio frame according to correspondence is determined to receive the described radio frames of device-to-device communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe;
Or the Timing Advance according to this transmitting apparatus of initial sum self of the downlink radio frame of correspondence is determined to receive the described radio frames of D2D communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe;
Or the Timing Advance indicated in control information according to the initial sum of the downlink radio frame of correspondence is determined to receive the described radio frames of device-to-device communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe.
It should be noted that, in the embodiment of the invention described above, the dispatch request that the second equipment sends can be physical layer signaling.This physical layer signaling is sent to the first equipment by PUCCH.Such as, this dispatch request is sent by special PUCCH resource, specially refer to the transmission that this PUCCH resource is exclusively used in the relevant dispatch request of D2D communication, can be that an agreement part is as described special PUCCH resource in the PUCCH resource of cellular communication, or the special PUCCH resource that configuration is different from the PUCCH resource of cellular communication communicates for D2D.
The dispatch request that second equipment sends, also can be high-level signaling, such as, be the RRC information being carried on Dedicated Control Channel; First equipment is dispatched the second equipment according to this dispatch request and is sent D2D data.
It also may be the mutual process of a multi-step that second device request carries out D2D scheduling.Such as, the second equipment sends the dispatch request of physical layer to the first equipment, and is carried out the scheduling of D2D communication after this to the first device request by high-level signaling.
First equipment sends control information to dispatch the second equipment and sends D2D communication data; This control information is also used to indicate the 3rd equipment and receives D2D communication data.This control information can be transmitted in PDSCH, namely carries this control information by the packet of included by PDSCH.And a channel mapping process that may have before this between different agreement layer, such as: control information is RRC information, be carried on logic channel D2D control channel, this D2D control channel is mapped to DSCH Downlink Shared Channel or D2D channel, and this DSCH Downlink Shared Channel or D2D channel mapping are to Physical Downlink Shared Channel.
When the second equipment dispatched or D2D business or D2D radio bearer have multiple simultaneously, each second equipment or each business or the corresponding one group of control information of each radio bearer, transmit after the control information of many groups is multiplexing, describedly multiplexingly can to perform at high level, such as MAC layer or more top.Wherein, often organize control information and there is a specifically mark, this specifically mark to communicate transmitting terminal for distinguishing different D2D radio bearers or different D2D communication services or different D2D; Second equipment according to the specific transactions of this specific identifier identification oneself or oneself or control information corresponding to radio bearer, and carries out the transmission of D2D communication according to the scheduling of this control information.Described mark can be Logic Channel Identifier (LCID, Logical Channel ID), or device identification, or service identification, or other identification information, or the combination partly or completely of above-mentioned mark.Or described specific mark can be the parameter be included in described control information.Described mark can be agreement or obtain from the first equipment.
The time-domain resource assignment information of one: D2D communication service of following parameter is at least comprised in each group control information, the frequency domain resource assignment information of D2D communication service, transmit the modulation coding mode (MCS of described D2D communication service, Modulation and Coding Scheme), transmit the Timing Advance of described D2D communication service, transmit the power contorl parameters of described D2D communication service.
Wherein, the instruction of time-domain resource assignment information is used for the time-domain resource position of the second device transmission D2D business datum, such as, can indicate the subframe position of concrete transmission.Here the subframe position indicated can be sub-frame of uplink.Such as, the time domain Radio Resource of this time-domain resource assignment information assignment period is used for the second device transmission D2D communication data.Like this, this assignment information can comprise the parameter in the cycle of being used to indicate, and is used to indicate the parameter of skew, and indicates the parameter of concrete subframe position.Wherein, be used to indicate parameter configuration cycle in units of 10ms or radio frames in cycle, the parameter being used to indicate skew is used to indicate in this cycle the radio frames position including D2D traffic transmission resource, and concrete subframe position indicates the subframe position specifically for transmission D2D communication service in this radio frames position.
Or this assignment information can comprise the parameter in the cycle of being used to indicate, be used to indicate the parameter of concrete subframe position.Wherein, be used to indicate parameter configuration cycle in units of 10ms or radio frames in cycle, the parameter being used to indicate concrete subframe position indicates this cycle interior concrete subframe position for D2D traffic transmission.
Wherein, the instruction of frequency domain resource assignment information is used for the frequency domain resource position of the second device transmission device-to-device business datum, and the frequency domain resource indicated here can be arranged in the above-mentioned subframe for D2D communication data transfer.Such as, this frequency domain resource assignment information divides the frequency domain resource block being used in the transmission of D2D business with the resource distribution mode of LTE system, the resource distribution mode of LTE system refers to the type0/type1/type2 resource distribution mode defined in LTE specification.
Or this frequency domain resource assignment information divides the frequency domain subchannel being used in the transmission of device-to-device business.Such as, for the available resources of D2D, subchannel can be divided at frequency domain, the subchannel number for the transmission of device-to-device business that the instruction of this frequency domain resource assignment information is dispatched or index.The dividing mode of subchannel can follow following principle: dividing subchannel take Physical Resource Block as least unit, i.e. frequency domain 12 subcarriers; The frequency domain bandwidth M of subchannel rBmeet wherein, N rBfor frequency domain available bandwidth, such as during D2D communication use upstream band, it is the RB number of upstream band, α 2, α 3and α 5for nonnegative integer.According to above principle, subchannel can be divided into the different amount of bandwidth such as 1,2,3,4,5,6,10 RB.Subchannel bandwidth size can be fixed, and also can change along with system bandwidth size, the larger subchannel bandwidth of bandwidth is larger.Instruction subchannel number or index refer to subchannel to should have numbering or index, by instruction numbering or index determine distributed subchannel.Frequency domain subchannel also can pass through bitmap (bitmap) instruction, and each in bitmap represents a sub-channels.
Wherein, modulation coding mode instruction is used for the MCS grade of D2D transfer of data.The MCS that LTE system defines can be continued to use, or, the subset of the MCS class set that the MCS that also can limit D2D communication defines for LTE system.
Wherein, Timing Advance instruction transmission and/or timing adjustment when receiving this D2D business datum.When control information comprises this parameter, it is identical with the transmitting terminal UE i.e. uplink timing advance of the second equipment of D2D business datum to arrange this Timing Advance, or also can be different, determines this Timing Advance by the first equipment.
Wherein, power contorl parameters is used for carrying out power control to the transmission of described D2D business datum.The mode that power controls can continue to use the power control mode of LTE system PUSCH.
First equipment may send D2D configuration information, at least comprises control channel resource configuration parameter in this configuration information.
Can comprise in this configuration parameter and be used to indicate the time-domain of control information transmission and/or the parameter of frequency domain Radio Resource position.Such as, described parameter indicates the subframe that control information as herein described is transmitted.First equipment and the second equipment, before detection control information, can first receive this configuration parameter, and detection control information in the subframe indicated at this configuration parameter.Contribute to subscriber equipment economize on electricity like this.Time domain Radio Resource can periodically configure.
RNTI indication information can be comprised, used special RNTI during the detection control information that the instruction of this indication information is aforementioned to be mentioned in this configuration parameter.
This device-to-device communication configuration information can be included in RRC information, is sent by the mode of broadcast.
The communication means of corresponding above-mentioned D2D, the embodiment of the present invention also provides a kind of second equipment, as shown in Figure 7, comprising:
First communication module 10, for the first devices communicating, comprise and send dispatch request to the first equipment, and receive from the control information of described first equipment; Wherein, the scheduling of described dispatch request for asking D2D to communicate, described control information is for dispatching the transmission of D2D communication data;
Second communication module 20, connects described first communication module 10, for the 3rd devices communicating, comprise and send D2D communication data according to the control information received from described first equipment to described 3rd equipment.
Wherein, described control information has specific identifier, and described specific identifier is for marking the transmitting apparatus of D2D radio bearer or D2D business or described D2D communication data;
And, when there is many group control informations, the control information of described many groups is carried out multiplexing at high level, and wherein often organize the scheduling that control information is used for the transmitting apparatus of each D2D radio bearer or D2D business or described D2D communication data, the described specific identifier of different group control information is different.
Described control information is radio resource control information, and is mapped in Physical Downlink Shared Channel and transmits; The Physical Downlink Control Channel being used to indicate described Physical Downlink Shared Channel transmits in Catalog Search space or specific search space, and wherein, the cyclic redundancy check bits position of described Physical Downlink Control Channel is by the scrambling of ad Hoc wireless network temporary mark.
Described first communication module 10 is further used for, before receiving the control information from the first equipment, receive the D2D configuration information that described first equipment sends, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission.
The embodiment of the present invention also provides a kind of first equipment, comprising: third communication module, for receiving the dispatch request that the second equipment sends, and in response to described dispatch request, sends control information to described second equipment; Wherein, the scheduling of described dispatch request for asking D2D to communicate, described control information is for dispatching the transmission of D2D communication data.
Preferably, described third communication module is further used for, and before sending control information to described second equipment, sends D2D configuration information;
Wherein, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission; Or, at least comprise D2D parameter channel configuration in described configuration information, described D2D parameter channel configuration be used to indicate following one of at least:
The time-domain of D2D communication data transfer and/or frequency domain Radio Resource position;
The modulation coding mode of D2D communication data transfer;
Carry out the Timing Advance of described D2D communication.
The embodiment of the present invention also provides a kind of 3rd equipment, as shown in Figure 8, comprising:
4th communication module 40, for with the first devices communicating, comprise: detect the Physical Downlink Control Channel marked by ad Hoc wireless network temporary mark that the first equipment sends, the Physical Downlink Shared Channel of described first equipment transmission is received according to the instruction of described Physical Downlink Control Channel, described Physical Downlink Shared Channel is used for control information transmission, described control information is radio resource control information, for dispatching D2D communication service data;
5th communication module 50, for the second devices communicating, comprise according to described control information receive second equipment send D2D communication data.
Described control information comprise following parameter one of at least:
For the time-domain resource assignment information that described D2D communicates;
For the frequency domain resource assignment information that described D2D communicates;
The modulation coding mode of described D2D communication data;
Carry out the Timing Advance of described D2D communication;
Carry out the power contorl parameters of described D2D communication.
Described 5th communication module 50 is further used for, and according to the initial sum of the downlink radio frame of correspondence, Timing Advance is determined to receive the described radio frames of D2D communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe.
Described 4th communication module 40 is further used for, before the described Physical Downlink Control Channel of detection, receive the D2D configuration information that described first equipment sends, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission.
The embodiment of the present invention also provides a kind of 3rd equipment, as shown in Figure 9, comprising:
6th communication module 60, for with the first devices communicating, comprise the D2D configuration information that detection first equipment sends, at least comprise the parameter channel configuration of D2D communication in described configuration information, described parameter channel configuration be used to indicate following one of at least: the time-domain of D2D communication data transfer and/or frequency domain Radio Resource position; The modulation coding mode of D2D communication data, carries out the Timing Advance of described D2D communication;
7th communication module 70, for the second devices communicating, comprise according to described configuration information receive second equipment send D2D communication data.
Preferably, 7th communication module 70 is further used for, according to the initial sum of the downlink radio frame of correspondence, Timing Advance is determined to receive the described radio frames of D2D communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe.
The embodiment of the present invention also provides the communication system of a kind of D2D, comprises the first above-mentioned equipment, the second equipment and the 3rd equipment.
By the embodiment of the present invention, solve the communication issue between device-to-device, ensure that the compatibility of device-to-device communication and cellular communication; Further, the device-to-device that the embodiment of the present invention can be applicable to clean culture and broadcast and the multicast such as multicast simultaneously communicates, and this harmonized programme contributes to the simplification of system and the complexity of reduction equipment realization.In addition, the embodiment of the present invention is also easy to be applied in the scene without the network coverage.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.

Claims (32)

1. a communication means of device-to-device D2D, be applied to the second equipment, it is characterized in that, the method comprises:
Dispatch request is sent, the scheduling of described dispatch request for asking D2D to communicate to the first equipment;
Receive the control information from described first equipment, described control information is for dispatching the transmission of D2D communication data;
D2D communication data is sent to the 3rd equipment according to described control information.
2. the communication means of D2D according to claim 1, it is characterized in that, described control information has specific identifier, and described specific identifier is for marking the transmitting apparatus of D2D radio bearer or D2D business or described D2D communication data;
And, when there is many group control informations, the control information of described many groups is carried out multiplexing at high level, and wherein often organize the scheduling that control information is used for the transmitting apparatus of each D2D radio bearer or D2D business or described D2D communication data, the described specific identifier of different group control information is different.
3. the communication means of D2D according to claim 1 or 2, is characterized in that,
Described control information is radio resource control information, and is mapped in Physical Downlink Shared Channel and transmits;
The Physical Downlink Control Channel being used to indicate described Physical Downlink Shared Channel transmits in Catalog Search space or specific search space, and wherein, the cyclic redundancy check bits position of described Physical Downlink Control Channel is by the scrambling of ad Hoc wireless network temporary mark.
4. the communication means of D2D according to claim 1 or 2, is characterized in that, described control information comprise following parameter one of at least:
For the assignment information of the time-domain resource that described D2D communicates;
For the assignment information of the frequency domain resource that described D2D communicates;
The modulation coding mode of described D2D communication data;
Carry out the Timing Advance of described D2D communication;
Carry out the power contorl parameters of described D2D communication.
5. the communication means of D2D according to claim 4, is characterized in that, describedly sends D2D communication data according to control information to the 3rd equipment and comprises:
According to the initial sum of the downlink radio frame of correspondence, Timing Advance is determined to send the described radio frames of D2D communication data and/or the initial of subframe, and according to the described radio frames of described initial transmission and/or subframe.
6. the communication means of D2D according to claim 1 or 2, is characterized in that, before the control information of described reception from the first equipment, the method also comprises:
Receive the D2D configuration information that described first equipment sends, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission.
7. the communication means of D2D according to claim 1 or 2, is characterized in that,
Described dispatch request is physical layer signaling, is sent by special Physical Uplink Control Channel, and described special Physical Uplink Control Channel is the channel being exclusively used in the transmission of D2D communication control information; Or,
Described dispatch request is high-level signaling, sends with the form of radio resource control information or medium access control message.
8. a communication means of device-to-device D2D, the method is applied to the first equipment, it is characterized in that, the method comprises:
Receiving scheduling request, described dispatch request is sent by the second equipment, the scheduling of described dispatch request for asking D2D to communicate;
In response to described dispatch request, send control information to described second equipment, described control information is for dispatching the transmission of D2D communication data.
9. the communication means of D2D according to claim 8, it is characterized in that, described control information has specific identifier, and described specific identifier is for marking the transmitting apparatus of D2D radio bearer or D2D business or described D2D communication data;
And, when there is many group control informations, the control information of described many groups is carried out multiplexing at high level, and wherein often organize the scheduling that control information is used for each D2D radio bearer or D2D business or described D2D communication data transmitting apparatus, the described specific identifier of different group control information is different.
10. the communication means of D2D according to claim 8 or claim 9, is characterized in that,
Described control information is radio resource control information, and is mapped in Physical Downlink Shared Channel and transmits;
The Physical Downlink Control Channel being used to indicate described Physical Downlink Shared Channel transmits in Catalog Search space or specific search space, and wherein, the cyclic redundancy check bits position of described Physical Downlink Control Channel is by the scrambling of ad Hoc wireless network temporary mark.
The communication means of 11. D2D according to claim 8 or claim 9, is characterized in that, described control information comprise following parameter one of at least:
For the time-domain resource assignment information that described D2D communicates;
For the frequency domain resource assignment information that described D2D communicates;
The modulation coding mode of described D2D communication data;
Carry out the Timing Advance of described D2D communication;
Carry out the power contorl parameters of described D2D communication.
The communication means of 12. D2D according to claim 8 or claim 9, is characterized in that, described to send control information to the second equipment before, the method also comprises:
Send D2D configuration information;
Wherein, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission; Or, at least comprise D2D parameter channel configuration in described configuration information, described D2D parameter channel configuration be used to indicate following one of at least:
The time-domain of D2D communication data transfer and/or frequency domain Radio Resource position;
The modulation coding mode of D2D communication data transfer;
Carry out the Timing Advance of described D2D communication.
The communication means of 13. 1 kinds of device-to-device D2D, the method is applied to the 3rd equipment, and it is characterized in that, the method comprises:
Detect the Physical Downlink Control Channel marked by ad Hoc wireless network temporary mark that the first equipment sends;
Receive the Physical Downlink Shared Channel of described first equipment transmission according to the instruction of described Physical Downlink Control Channel, described Physical Downlink Shared Channel is used for control information transmission, and described control information is radio resource control information, for dispatching D2D communication;
The D2D communication data of the second equipment transmission is received according to described control information.
14. according to the communication means of D2D described in claim 13, and it is characterized in that, described control information has specific identifier, and described specific identifier is for marking the transmitting apparatus of D2D radio bearer or D2D business or described D2D communication data;
And, when there is many group control informations, the control information of described many groups is carried out multiplexing at high level, and wherein often organize the scheduling that control information is used for the transmitting apparatus of each D2D radio bearer or D2D business or described D2D communication data, the described specific identifier of different group control information is different.
15. according to claim 13 or 14 communication means of D2D, it is characterized in that, described control information comprise following parameter one of at least:
For the time-domain resource assignment information that described D2D communicates;
For the frequency domain resource assignment information that described D2D communicates;
The modulation coding mode of described D2D communication data;
Carry out the Timing Advance of described D2D communication;
Carry out the power contorl parameters of described D2D communication.
16., according to the communication means of D2D described in claim 15, is characterized in that, describedly receive according to control information the D2D communication data that the second equipment sends and comprise:
According to the initial sum of the downlink radio frame of correspondence, Timing Advance is determined to receive the described radio frames of D2D communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe.
17. according to claim 13 or 14 communication means of D2D, it is characterized in that, before the described Physical Downlink Control Channel of detection, the method also comprises:
Receive the D2D configuration information that described first equipment sends, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission.
The communication means of 18. 1 kinds of device-to-device D2D, the method is applied to the 3rd equipment, and it is characterized in that, the method comprises:
Detect the D2D configuration information that the first equipment sends, at least comprise the parameter channel configuration of D2D communication in described configuration information, described parameter channel configuration be used to indicate following one of at least: the time-domain of D2D communication data transfer and/or frequency domain Radio Resource position; The modulation coding mode of D2D communication data, carries out the Timing Advance of described D2D communication;
The D2D communication data of the second equipment transmission is received according to described configuration information.
19., according to the communication means of D2D described in claim 18, is characterized in that, describedly receive according to control information the D2D communication data that the second equipment sends and comprise:
According to the initial sum of the downlink radio frame of correspondence, Timing Advance is determined to receive the described radio frames of D2D communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe.
20. a kind of second equipment, is characterized in that, comprising:
First communication module, for the first devices communicating, comprise and send dispatch request to the first equipment, and receive from the control information of described first equipment; Wherein, the scheduling of described dispatch request for asking D2D to communicate, described control information is for dispatching the transmission of D2D communication data;
Second communication module, connects described first communication module, for the 3rd devices communicating, comprise and send D2D communication data according to the control information received from described first equipment to described 3rd equipment.
21., according to the second equipment described in claim 20, is characterized in that, described control information has specific identifier, and described specific identifier is for marking the transmitting apparatus of D2D radio bearer or D2D business or described D2D communication data;
And, when there is many group control informations, the control information of described many groups is carried out multiplexing at high level, and wherein often organize the scheduling that control information is used for the transmitting apparatus of each D2D radio bearer or D2D business or described D2D communication data, the described specific identifier of different group control information is different.
22. according to claim 20 or 21 second equipment, it is characterized in that, described control information is radio resource control information, and is mapped in Physical Downlink Shared Channel and transmits; The Physical Downlink Control Channel being used to indicate described Physical Downlink Shared Channel transmits in Catalog Search space or specific search space, and wherein, the cyclic redundancy check bits position of described Physical Downlink Control Channel is by the scrambling of ad Hoc wireless network temporary mark.
23. according to claim 20 or 21 second equipment, it is characterized in that, described first communication module is further used for, before receiving the control information from the first equipment, receive the D2D configuration information that described first equipment sends, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission.
24. a kind of first equipment, is characterized in that, comprising:
Third communication module, for receiving the dispatch request that the second equipment sends, and in response to described dispatch request, sends control information to described second equipment; Wherein, the scheduling of described dispatch request for asking D2D to communicate, described control information is for dispatching the transmission of D2D communication data.
25., according to the first equipment described in claim 24, is characterized in that, described third communication module is further used for, and before sending control information to described second equipment, send D2D configuration information;
Wherein, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission; Or, at least comprise D2D parameter channel configuration in described configuration information, described D2D parameter channel configuration be used to indicate following one of at least:
The time-domain of D2D communication data transfer and/or frequency domain Radio Resource position;
The modulation coding mode of D2D communication data transfer;
Carry out the Timing Advance of described D2D communication.
26. a kind of the 3rd equipment, is characterized in that, comprising:
4th communication module, for with the first devices communicating, comprise: detect the Physical Downlink Control Channel marked by ad Hoc wireless network temporary mark that the first equipment sends, the Physical Downlink Shared Channel of described first equipment transmission is received according to the instruction of described Physical Downlink Control Channel, described Physical Downlink Shared Channel is used for control information transmission, described control information is radio resource control information, for dispatching D2D communication;
5th communication module, for the second devices communicating, comprise according to described control information receive second equipment send D2D communication data.
27., according to the 3rd equipment described in claim 26, is characterized in that, described control information comprise following parameter one of at least:
For the time-domain resource assignment information that described D2D communicates;
For the frequency domain resource assignment information that described D2D communicates;
The modulation coding mode of described D2D communication data;
Carry out the Timing Advance of described D2D communication;
Carry out the power contorl parameters of described D2D communication.
28. according to the 3rd equipment described in claim 27, it is characterized in that, described 5th communication module is further used for, according to the initial sum of the downlink radio frame of correspondence, Timing Advance is determined to receive the described radio frames of D2D communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe.
29. according to claim 26,27 or 28 the 3rd equipment, it is characterized in that, described 4th communication module is further used for, before the described Physical Downlink Control Channel of detection, receive the D2D configuration information that described first equipment sends, at least comprise control channel resource configuration parameter in described configuration information, described configuration parameter is used to indicate time-domain and/or the frequency domain Radio Resource position of described control information transmission.
30. a kind of the 3rd equipment, is characterized in that, comprising:
6th communication module, for with the first devices communicating, comprise the D2D configuration information that detection first equipment sends, at least comprise the parameter channel configuration of D2D communication in described configuration information, described parameter channel configuration be used to indicate following one of at least: the time-domain of D2D communication data transfer and/or frequency domain Radio Resource position; The modulation coding mode of D2D communication data, carries out the Timing Advance of described D2D communication;
7th communication module, for the second devices communicating, comprise according to described configuration information receive second equipment send D2D communication data.
31. according to the 3rd equipment described in claim 30, it is characterized in that, described 7th communication module is further used for, according to the initial sum of the downlink radio frame of correspondence, Timing Advance is determined to receive the described radio frames of D2D communication data and/or the initial of subframe, and according to the described radio frames of described initial reception and/or subframe.
The communication system of 32. 1 kinds of device-to-device D2D, is characterized in that, comprises the first equipment described in any one of claim 24-25, the second equipment described in any one of claim 20-23 and the 3rd equipment described in any one of claim 26-29.
CN201310443341.1A 2013-09-25 2013-09-25 Device-to-device communication method, device and system Withdrawn CN104469961A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201310443341.1A CN104469961A (en) 2013-09-25 2013-09-25 Device-to-device communication method, device and system
PCT/CN2014/084814 WO2015043341A1 (en) 2013-09-25 2014-08-20 D2d communication method, device, and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310443341.1A CN104469961A (en) 2013-09-25 2013-09-25 Device-to-device communication method, device and system

Publications (1)

Publication Number Publication Date
CN104469961A true CN104469961A (en) 2015-03-25

Family

ID=52742009

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310443341.1A Withdrawn CN104469961A (en) 2013-09-25 2013-09-25 Device-to-device communication method, device and system

Country Status (2)

Country Link
CN (1) CN104469961A (en)
WO (1) WO2015043341A1 (en)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106162929A (en) * 2015-04-07 2016-11-23 中兴通讯股份有限公司 The communication means of user terminal and via node and device in equipment direct communication system
CN106162512A (en) * 2015-04-09 2016-11-23 中兴通讯股份有限公司 A kind of relaying bear control method and device
CN106303918A (en) * 2015-11-24 2017-01-04 北京智谷睿拓技术服务有限公司 Communication between devices method, communication between devices resource allocation methods and device thereof
CN106304257A (en) * 2015-05-15 2017-01-04 上海贝尔股份有限公司 Select UE to the method for the relaying of network with for relaying the synchronous method of discovery
CN106341772A (en) * 2015-07-07 2017-01-18 索尼公司 Wireless communication equipment and wireless communication method
WO2017024546A1 (en) * 2015-08-12 2017-02-16 华为技术有限公司 Data transmission method and apparatus
CN106464663A (en) * 2015-03-31 2017-02-22 华为技术有限公司 Data processing method, device and equipment
WO2017028679A1 (en) * 2015-08-14 2017-02-23 电信科学技术研究院 Data receiving, sending and relay method, device and communication system
CN106507491A (en) * 2015-09-08 2017-03-15 华为技术有限公司 The website dispatching method of transmitted in parallel data, device, equipment and system
WO2017049432A1 (en) * 2015-09-21 2017-03-30 华为技术有限公司 Data transmission method and apparatus
WO2017054545A1 (en) * 2015-09-30 2017-04-06 电信科学技术研究院 Data transmission method and device
WO2017133292A1 (en) * 2016-02-04 2017-08-10 中兴通讯股份有限公司 Method and device for indicating subchannel configuration
WO2017133202A1 (en) * 2016-02-03 2017-08-10 中兴通讯股份有限公司 Method and device for implementing resource allocation
WO2017133417A1 (en) * 2016-02-04 2017-08-10 中兴通讯股份有限公司 Data channel subframe indication method and device
CN107071916A (en) * 2017-05-05 2017-08-18 宇龙计算机通信科技(深圳)有限公司 A kind of resource regulating method and relevant device
CN107079480A (en) * 2015-09-18 2017-08-18 华为技术有限公司 A kind of transmission method of control information, transmitting terminal and receiving terminal
WO2017167148A1 (en) * 2016-03-31 2017-10-05 中兴通讯股份有限公司 Information transmission method, receiving method, and device
CN107295671A (en) * 2016-03-31 2017-10-24 中兴通讯股份有限公司 The communication means and device of a kind of Downlink Control Information
WO2017185295A1 (en) * 2016-04-28 2017-11-02 华为技术有限公司 Communication method, network side device, and vehicle terminal device
CN107360533A (en) * 2016-05-09 2017-11-17 北京信威通信技术股份有限公司 A kind of method and device of communication resource distribution
CN107852296A (en) * 2015-07-01 2018-03-27 高通股份有限公司 Scheduling assignment optimization for device-to-device communication
CN107925995A (en) * 2015-08-12 2018-04-17 华为技术有限公司 A kind of user equipment, the network equipment and data transmission method
WO2018082055A1 (en) * 2016-11-04 2018-05-11 华为技术有限公司 Wireless network data transmission method, apparatus and system
WO2018103703A1 (en) * 2016-12-09 2018-06-14 华为技术有限公司 Information transmission method and access network device
CN110191504A (en) * 2019-04-16 2019-08-30 王聪语 A kind of Poewr control method
CN110972329A (en) * 2018-09-28 2020-04-07 中国电信股份有限公司 Communication method and system, base station, and computer-readable storage medium
WO2020078232A1 (en) * 2018-10-17 2020-04-23 电信科学技术研究院有限公司 Resource scheduling method and terminal for direct communication link and network side device
CN111132371A (en) * 2018-11-01 2020-05-08 维沃移动通信有限公司 Method for establishing sub-link connection and resource allocation, terminal and network side equipment
WO2021082163A1 (en) * 2019-10-30 2021-05-06 云南宾飞科技有限公司 Short-distance high-precision positioning method and positioning system
CN108353386B (en) * 2015-11-05 2023-04-07 松下电器（美国）知识产权公司 Wireless device and wireless communication method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111491275B (en) * 2019-01-28 2023-08-15 北京小米松果电子有限公司 Power control method and device, storage medium and electronic equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013091229A1 (en) * 2011-12-23 2013-06-27 Renesas Mobile Corporation Transparent d2d communications
US20130178221A1 (en) * 2006-07-31 2013-07-11 Motorola Mobility Llc Method and Apparatus for Managing Transmit Power for Device-To-Device Communication
CN103209487A (en) * 2012-01-17 2013-07-17 中兴通讯股份有限公司 Wireless communication method, device and system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130178221A1 (en) * 2006-07-31 2013-07-11 Motorola Mobility Llc Method and Apparatus for Managing Transmit Power for Device-To-Device Communication
WO2013091229A1 (en) * 2011-12-23 2013-06-27 Renesas Mobile Corporation Transparent d2d communications
CN103209487A (en) * 2012-01-17 2013-07-17 中兴通讯股份有限公司 Wireless communication method, device and system

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106464663A (en) * 2015-03-31 2017-02-22 华为技术有限公司 Data processing method, device and equipment
US10383160B2 (en) 2015-03-31 2019-08-13 Huawei Technologies Co., Ltd. Data processing method, apparatus, and device
CN106162929A (en) * 2015-04-07 2016-11-23 中兴通讯股份有限公司 The communication means of user terminal and via node and device in equipment direct communication system
CN106162512A (en) * 2015-04-09 2016-11-23 中兴通讯股份有限公司 A kind of relaying bear control method and device
CN106304257A (en) * 2015-05-15 2017-01-04 上海贝尔股份有限公司 Select UE to the method for the relaying of network with for relaying the synchronous method of discovery
CN107852296A (en) * 2015-07-01 2018-03-27 高通股份有限公司 Scheduling assignment optimization for device-to-device communication
CN106341772A (en) * 2015-07-07 2017-01-18 索尼公司 Wireless communication equipment and wireless communication method
WO2017024546A1 (en) * 2015-08-12 2017-02-16 华为技术有限公司 Data transmission method and apparatus
US11659532B2 (en) 2015-08-12 2023-05-23 Huawei Technologies Co., Ltd. User equipment, network device, and data transmission method
CN107211405B (en) * 2015-08-12 2020-06-02 华为技术有限公司 Data transmission method and device
CN107925995A (en) * 2015-08-12 2018-04-17 华为技术有限公司 A kind of user equipment, the network equipment and data transmission method
US10595316B2 (en) 2015-08-12 2020-03-17 Huawei Technologies Co., Ltd. User equipment, network device, and data transmission method
CN107925995B (en) * 2015-08-12 2020-10-16 华为技术有限公司 User equipment, network equipment and data transmission method
CN107211405A (en) * 2015-08-12 2017-09-26 华为技术有限公司 A kind of data transmission method and device
WO2017028679A1 (en) * 2015-08-14 2017-02-23 电信科学技术研究院 Data receiving, sending and relay method, device and communication system
CN106507491A (en) * 2015-09-08 2017-03-15 华为技术有限公司 The website dispatching method of transmitted in parallel data, device, equipment and system
CN106507491B (en) * 2015-09-08 2019-11-12 华为技术有限公司 Website dispatching method, device, equipment and the system of transmitted in parallel data
WO2017041592A1 (en) * 2015-09-08 2017-03-16 华为技术有限公司 Parallel data sending station scheduling method, apparatus, device and system
CN107079480A (en) * 2015-09-18 2017-08-18 华为技术有限公司 A kind of transmission method of control information, transmitting terminal and receiving terminal
US11357032B2 (en) 2015-09-18 2022-06-07 Huawei Technologies Co., Ltd. Control information transmission method, transmit end, and receive end
CN107079480B (en) * 2015-09-18 2020-12-01 华为技术有限公司 Control information transmission method, sending end and receiving end
WO2017049432A1 (en) * 2015-09-21 2017-03-30 华为技术有限公司 Data transmission method and apparatus
WO2017054545A1 (en) * 2015-09-30 2017-04-06 电信科学技术研究院 Data transmission method and device
CN108353386B (en) * 2015-11-05 2023-04-07 松下电器（美国）知识产权公司 Wireless device and wireless communication method
CN106303918B (en) * 2015-11-24 2020-06-02 北京智谷睿拓技术服务有限公司 Inter-device communication method, inter-device communication resource allocation method, and device thereof
CN106303918A (en) * 2015-11-24 2017-01-04 北京智谷睿拓技术服务有限公司 Communication between devices method, communication between devices resource allocation methods and device thereof
US10448229B2 (en) 2015-11-24 2019-10-15 Beijing Zhigu Rui Tuo Tech Co., Ltd. Device-to-device communication method, method for assigning device-to-device communication resource, and apparatuses thereof
WO2017133202A1 (en) * 2016-02-03 2017-08-10 中兴通讯股份有限公司 Method and device for implementing resource allocation
CN107040997A (en) * 2016-02-03 2017-08-11 中兴通讯股份有限公司 The method and device of resource distribution
US10813090B2 (en) 2016-02-03 2020-10-20 Zte Corporation Resource configuration method and device
CN107040997B (en) * 2016-02-03 2023-07-14 中兴通讯股份有限公司 Resource allocation method and device
JP2019510396A (en) * 2016-02-03 2019-04-11 中興通訊股▲ふん▼有限公司Ｚｔｅ Ｃｏｒｐｏｒａｔｉｏｎ Method and apparatus for realizing resource setting
WO2017133292A1 (en) * 2016-02-04 2017-08-10 中兴通讯股份有限公司 Method and device for indicating subchannel configuration
WO2017133417A1 (en) * 2016-02-04 2017-08-10 中兴通讯股份有限公司 Data channel subframe indication method and device
CN107040353A (en) * 2016-02-04 2017-08-11 中兴通讯股份有限公司 The indicating means and device of subchannel arrangements
WO2017167148A1 (en) * 2016-03-31 2017-10-05 中兴通讯股份有限公司 Information transmission method, receiving method, and device
CN107295671A (en) * 2016-03-31 2017-10-24 中兴通讯股份有限公司 The communication means and device of a kind of Downlink Control Information
WO2017185295A1 (en) * 2016-04-28 2017-11-02 华为技术有限公司 Communication method, network side device, and vehicle terminal device
CN107360533A (en) * 2016-05-09 2017-11-17 北京信威通信技术股份有限公司 A kind of method and device of communication resource distribution
WO2018082055A1 (en) * 2016-11-04 2018-05-11 华为技术有限公司 Wireless network data transmission method, apparatus and system
US10798708B2 (en) 2016-11-04 2020-10-06 Huawei Technologies Co., Ltd. Method for data transmission in wireless network, apparatus, and system
WO2018103703A1 (en) * 2016-12-09 2018-06-14 华为技术有限公司 Information transmission method and access network device
US11147048B2 (en) 2017-05-05 2021-10-12 Yulong Computer Telecommunication Scientific (Shenzhen) Co., Ltd. Method for resource scheduling and related devices
CN107071916A (en) * 2017-05-05 2017-08-18 宇龙计算机通信科技(深圳)有限公司 A kind of resource regulating method and relevant device
CN110972329B (en) * 2018-09-28 2022-03-01 中国电信股份有限公司 Communication method and system, base station, and computer-readable storage medium
CN110972329A (en) * 2018-09-28 2020-04-07 中国电信股份有限公司 Communication method and system, base station, and computer-readable storage medium
WO2020078232A1 (en) * 2018-10-17 2020-04-23 电信科学技术研究院有限公司 Resource scheduling method and terminal for direct communication link and network side device
CN111132371B (en) * 2018-11-01 2022-03-11 维沃移动通信有限公司 Method for establishing sub-link connection and resource allocation, terminal and network side equipment
CN111132371A (en) * 2018-11-01 2020-05-08 维沃移动通信有限公司 Method for establishing sub-link connection and resource allocation, terminal and network side equipment
CN110191504A (en) * 2019-04-16 2019-08-30 王聪语 A kind of Poewr control method
CN110191504B (en) * 2019-04-16 2022-06-14 王聪语 Power control method
WO2021082163A1 (en) * 2019-10-30 2021-05-06 云南宾飞科技有限公司 Short-distance high-precision positioning method and positioning system

Also Published As

Publication number Publication date
WO2015043341A1 (en) 2015-04-02

Similar Documents

Publication Publication Date Title
CN104469961A (en) Device-to-device communication method, device and system
EP2957121B1 (en) Apparatus and method of transmitting/receiving signals in mobile communication system supporting carrier aggregation
WO2016019734A1 (en) D2d communication method and device
WO2018074068A1 (en) Base station device, terminal device and communication method
EP3100374B1 (en) Method for handling an id collision for d2d communication system and device therefor
WO2016045409A1 (en) Method and device for indicating bit number
WO2015020108A1 (en) Terminal, base station, integrated circuit, and communications method
EP3177092B1 (en) Terminal device, base station device, communication method and integrated circuit
CN104854949A (en) System and method for random access in heterogeneous communications systems
WO2016045442A1 (en) Method, device, and system for device-to-device communication
WO2014124608A1 (en) Device-to-device communication device discovery method, user equipment and network-side device
EP3179822B1 (en) Terminal device and method for device-to-device communication
US20160338082A1 (en) Method for notifying for d2d communication system and device therefor
CN106416390B (en) Terminal device, base station device, and communication method
EP3179801B1 (en) Interference mitigation between device-to-device communication and cellular communication
EP3010302B1 (en) Subframe configuration instruction method and system in d2d communication
EP3360379A1 (en) Communications device, infrastructure equipment, communications system and methods
EP3177084B1 (en) Terminal device, base station device, communications method and integrated circuit
WO2014124610A1 (en) Device discovery method and apparatus
CN105228248A (en) Resource allocation methods in a kind of D2D transmission and device
CN105450358A (en) Indication method and indication device of the quantity of MAC (Medium Access Control) PDU (Protocol Data Unit)
CN103493559A (en) Method for sending and receiving signals for alleviating inter-cell interference in a wireless communication system and a device therefor
CN104618985B (en) Sending method, device, equipment and the system of equipment discovery signal
US20140161014A1 (en) Mobile communication system, radio base station, mobile station, data transmission method, data reception method, and computer readable medium
JP2015070342A (en) Base station, terminal, and communication method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication

Application publication date: 20150325

WW01 Invention patent application withdrawn after publication