CN104038920A - Data transmission method, system and device - Google Patents

Data transmission method, system and device Download PDF

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Publication number
CN104038920A
CN104038920A CN201310075197.0A CN201310075197A CN104038920A CN 104038920 A CN104038920 A CN 104038920A CN 201310075197 A CN201310075197 A CN 201310075197A CN 104038920 A CN104038920 A CN 104038920A
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China
Prior art keywords
link
rnti
subscriber equipment
dci
indicate
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CN201310075197.0A
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CN104038920B (en
Inventor
赵锐
高秋彬
陈文洪
彭莹
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Priority to CN201310075197.0A priority Critical patent/CN104038920B/en
Priority to PCT/CN2014/072950 priority patent/WO2014135090A1/en
Publication of CN104038920A publication Critical patent/CN104038920A/en
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Publication of CN104038920B publication Critical patent/CN104038920B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals

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  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiments of the invention relate to the technical field of radio communication, and particularly relate to a data transmission method, system and device, for directing D2D communication among multiple user equipment in a cellular mobile communication network so as to achieve D2D transmission. The method provided by one embodiment of the invention comprises: on a N2D link, a network-side device directs the user equipment communicating in the D2D transmission to communicate on a D2D link. Because the network-side device, on the N2D link, according to an information indication domain in an RNTI and/or DCI, directs the user equipment communicating in the D2D transmission to communicate on the D2D link, the network-side device can direct the D2D communication between the multiple the user equipment in the cellular mobile communication network so as to achieve the D2D transmission, thus the system performance is improved.

Description

A kind of method of transfer of data, system and equipment
Technical field
The present invention relates to wireless communication technology field, particularly a kind of method of transfer of data, system and equipment.
Background technology
In traditional cellular telecommunication art, the data communication flow process between two subscriber equipmenies as shown in Figure 1.Two subscriber equipmenies the business such as voice-and-data through resident separately eNB(evolution base station) and core net carry out alternately.
D2D(Device-to-Device), the straight-through technology of subscriber equipment, refers to that contiguous subscriber equipment can carry out the mode of transfer of data in short range by direct connected link, does not need to forward by Centroid (being base station), as shown in Figure 2.Short haul connection feature and the direct communication mode of D2D technology itself make it have following advantage:
Subscriber equipment carrying out direct communication in close range mode can realize higher data rate, lower delay and lower power consumption;
Utilize the subscriber equipment of extensive distribution in network and the short distance feature of D2D communication link, can realize effective utilization of frequency spectrum resource;
The direct communication mode of D2D can adapt to as the local data of the business such as wireless P2P shares demand, and the data, services with flexible adaptation ability is provided;
D2D direct communication can utilize the huge and widely distributed communication user equipment of quantity in network to expand the coverage of network.
LTE D2D technology refers to that being operated in LTE authorizes the D2D that is subject to LTE network control in frequency range to communicate by letter.Can give full play on the one hand the advantage of D2D technology, the control of LTE network simultaneously also can overcome some problems of traditional D2D technology, uncontrollable etc. such as disturbing.The introducing of LTE D2D characteristic will make the direction evolution of (Universal Connectivity Technology) from simple wireless mobile cellular telecommunication art towards " general interconnection technique " of LTE technology.
But also there is no a kind of indication scheme of carrying out D2D communication between two subscriber equipmenies under cellular mobile communication networks at present, thereby cannot realize D2D transmission.
Summary of the invention
The invention provides a kind of method, system and equipment of transfer of data, in order under cellular mobile communication networks to carrying out the indication of D2D communication between a plurality of subscriber equipmenies, to realize D2D transmission.
The method of a kind of transfer of data that the embodiment of the present invention provides, comprising:
Network equipment is that user device configuration is for the information indication territory of radio network temporary identifier RNTI and/or the Downlink Control Information DCI of D2D communication;
Described network equipment is according to the information indication territory in described RNTI and/or DCI, and the subscriber equipment of indicating D2D to communicate in communicating by letter on the straight-through link N2D Link of network and subscriber equipment is leading directly on link D2D Link and communicating by letter between subscriber equipment.
The method of the another kind of transfer of data that the embodiment of the present invention provides, comprising:
Subscriber equipment determines that network equipment is the information indication territory of the RNTI for D2D communication and/or the DCI of described user device configuration;
Described subscriber equipment receives DCI, and the information indication territory in the RNTI of the DCI receiving according to scrambling and/or the DCI that receives, carries out D2D link communication.
The network equipment of a kind of transfer of data that the embodiment of the present invention provides, comprising:
Configuration module, is used to user device configuration for the information indication territory of RNTI and/or the DCI of D2D communication;
Indicating module for according to the information indication territory of described RNTI and/or DCI, indicates the subscriber equipment communicating in D2D communication to communicate by letter on D2D Link on N2D Link.
The subscriber equipment of a kind of transfer of data that the embodiment of the present invention provides, comprising:
The information indication territory of the RNTI for D2D communication that determination module is described user device configuration for definite network equipment and/or DCI;
Processing module, for receiving DCI, and the indication of the information in the RNTI of the DCI receiving according to scrambling and/or the DCI that receives territory, carry out D2D link communication.
The system of a kind of transfer of data that the embodiment of the present invention provides, comprising:
Network equipment, is used to user device configuration for the information indication territory of RNTI and/or the DCI of D2D communication; According to the information indication territory in described RNTI and/or DCI, on N2D Link, indicate the subscriber equipment communicating in D2D communication to communicate by letter on D2D Link;
Subscriber equipment, for receiving DCI, and the indication of the information in the RNTI of the DCI receiving according to scrambling and/or the DCI that receives territory, carry out D2D link communication.
Because network equipment is according to the information indication territory in RNTI and/or DCI, on N2D Link, indicate the subscriber equipment communicating in D2D communication to communicate by letter on D2D Link, can be to carrying out the indication of D2D communication between a plurality of subscriber equipmenies under cellular mobile communication networks, thereby realize D2D transmission, improved systematic function.
Accompanying drawing explanation
Fig. 1 is the data flow schematic diagram of communications of user equipment in background technology cellular network;
Fig. 2 is the data flow schematic diagram of the direct-connected communication of background technology subscriber equipment;
Fig. 3 is the schematic diagram of the direct-connected communication of embodiment of the present invention subscriber equipment;
Fig. 4 is the system configuration schematic diagram of embodiment of the present invention transfer of data;
Fig. 5 is the structural representation of network equipment in the system of embodiment of the present invention transfer of data;
Fig. 6 is the structural representation of subscriber equipment in the system of embodiment of the present invention transfer of data;
Fig. 7 is that embodiment of the present invention network equipment is the method flow schematic diagram of user device configuration transfer of data;
Fig. 8 is the method flow schematic diagram of embodiment of the present invention customer equipment data transmission.
Embodiment
Embodiment of the present invention network equipment is according to the information indication territory in RNTI and/or DCI, on N2DLink, indicate the subscriber equipment communicating in D2D communication to communicate by letter on D2D Link, can be to carrying out the indication of D2D communication between a plurality of subscriber equipmenies under cellular mobile communication networks, thereby realize D2D transmission, improved systematic function.
D2D Link in the embodiment of the present invention is straight-through link between Device-to-Device Link(subscriber equipment); N2D Link is the straight-through link of Network-to-Device Link(network and subscriber equipment), specifically can be referring to Fig. 3.
Take Fig. 3 as example, network side on N2D link equipment for indicating user A in the transmission of the enterprising row data of D2D link; Subscriber equipment A receives after the indication of network equipment the transmission in the enterprising row data of D2D link.
Network side on N2D link equipment for indicating user B in the transmission of the enterprising row data of D2D link; Subscriber equipment B receives after the indication of network equipment the transmission in the enterprising row data of D2D link.
It should be noted that, be that two UE carry out D2D transmission in Fig. 3, can be also that a plurality of UE transmit as required, and such as a UE sends, a plurality of UE receive.
In declarative procedure below, first from the cooperation of network side and user equipment side, implement to describe, finally from the enforcement of network side and user equipment side, describe respectively, but this does not also mean that the two must coordinate enforcement, in fact, when network side and user equipment side, separate while implementing, also solved respectively in network side, the existing problem of user equipment side, when just the two is combined with, can obtain better technique effect.
As shown in Figure 4, the system of embodiment of the present invention transfer of data comprises: network equipment 10 and subscriber equipment 20.
Network equipment 10, be used to user device configuration for the RNTI(Radio Network Temporary Identifier of D2D communication, radio network temporary identifier) and/or DCI(Downlink Control Information, Downlink Control Information) the information indication territory in, according to the information indication territory in RNTI and/or DCI, the subscriber equipment of indicating D2D to communicate in communicating by letter on the straight-through link N2D Link of network and subscriber equipment is leading directly on link D2D Link and is communicating by letter between subscriber equipment;
The information indication territory of the RNTI for D2D communication that subscriber equipment 20 is user device configuration for definite network equipment and/or DCI; Receive DCI, and the information indication territory in the RNTI of the DCI receiving according to scrambling and/or the DCI that receives, carry out D2D link communication.
In force, during network equipment configuration information indication territory, can adopt explicit or implicit configuration.Explicit way is transmission information notice; Implicit is to adopt D2D transmission mode, and notifying user equipment 20 adopts D2D transmission, and subscriber equipment is just known in DCI information indication territory, and in information indication territory, the implication of bit value can preset, and also can have network side notice.
In network equipment configuration, have a variety ofly, be introduced respectively below.
Configuration one, network equipment can be used to indicate the RNTI that subscriber equipment communicates on D2Dlink for one of user device configuration, if network equipment needs notifying user equipment to communicate by letter at D2D, can be with sending to subscriber equipment after a RNTI scrambling DCI, corresponding subscriber equipment is received after the DCI of a RNTI scrambling, just knows on D2D and communicates by letter; Or, network equipment is that one of user device configuration is used to indicate the 2nd RNTI that subscriber equipment sends on D2D link, and/or one be used to indicate the 3rd RNTI that subscriber equipment receives on D2D link, if network equipment needs notifying user equipment to send at D2D, can be with sending to subscriber equipment after the 2nd RNTI scrambling DCI, corresponding subscriber equipment is received after the DCI of the 2nd RNTI scrambling, just know on D2D and send, if need indication to receive, just with the 3rd RNTI scrambling.
Accordingly, subscriber equipment, after receiving the DCI that is used to indicate the RNTI scrambling that subscriber equipment communicates on D2D link, carries out D2D link communication;
Subscriber equipment, after receiving the DCI that is used to indicate the 2nd RNTI scrambling that subscriber equipment sends on D2D link, sends on D2D link;
Subscriber equipment, after receiving the DCI that is used to indicate the 3rd RNTI scrambling that subscriber equipment receives on D2D link, sends on D2D link.
If a network equipment equipment for indicating user communicates on D2D link, subscriber equipment can be consulted to send or receive voluntarily; Also can there is network equipment to adopt other RNTI or information indication territory equipment for indicating user to send or receive.It should be noted that, other modes that can make subscriber equipment determine and send or receive are suitable for the embodiment of the present invention equally.
Configuration two, network equipment can be used to indicate the group RNTI receiving in D2D group communication for one of user device configuration, so that subscriber equipment receives only broadcast or multicast information on D2D link; And/or one be used to indicate the 2nd RNTI that subscriber equipment sends on D2D link.
Accordingly, subscriber equipment receives and is used to indicate the DCI of the 2nd RNTI scrambling that subscriber equipment sends on D2D link and is used to indicate after the DCI of the group RNTI scrambling receiving in D2D group communication, on D2D link, sends;
Subscriber equipment receives after the DCI that is used to indicate the group RNTI scrambling receiving in D2D group communication, on D2D link, receives.
Indication information territory in configuration three, DCI is used to indicate subscriber equipment and on D2D link, sends or receive.Bit value corresponding to indication information territory represents different implications, for example: indication information territory can be the information of 2 bits, MSB is for representing for the scheduling of N2D link or for the scheduling of D2D link, 0 represents the communication of N2D link, and 1 represents the communication of D2D link.It is the transmission of D2D link that LSB is used to indicate, or receives, and 0 represents to receive, and 1 represents to send.After corresponding subscriber equipment receives that the indication information territory of DCI is 11, just know on D2D link and send.
It is to send or receive that indication information territory in configuration four, DCI is used to indicate subscriber equipment.Bit value corresponding to indication information territory represents different implications, and such as 1 for sending, 0 for receiving, if network equipment needs notifying user equipment to send at D2D, it is 1 that indication information territory can be set, and after corresponding subscriber equipment receives that the indication information territory of DCI is 1, just knows on D2D and sends.
Accordingly, subscriber equipment, after receiving the DCI in inclusion information indication territory, if information indication territory equipment for indicating user sends on D2D link, sends on D2D link; If information indication territory equipment for indicating user receives on D2D link, on D2D link, receive.
Configuration five, network equipment are that one of user device configuration is used to indicate the RNTI that subscriber equipment communicates on D2D link; Indication information territory in DCI is used to indicate subscriber equipment and sends or receive.Bit value corresponding to indication information territory represents different implications, such as 1 for sending, 0 for receiving, if network equipment needs notifying user equipment to send at D2D, it is 1 that indication information territory can be set, corresponding subscriber equipment is just known on D2D and is sent after receiving that the indication information territory by the DCI of a RNTI scrambling is 1.Increase information indication territory in the DCI that adopts a RNTI scrambling, combines the object of indication thereby reach by RNTI and indication information territory.
Accordingly, subscriber equipment is being received inclusion information indication territory, and by being used to indicate after the DCI of the RNTI scrambling that subscriber equipment communicates on D2Dlink, if information indication territory equipment for indicating user sends, on D2D link, sends;
Subscriber equipment is being received inclusion information indication territory, and by being used to indicate after the DCI of the RNTI scrambling that subscriber equipment communicates on D2D link,, if information indication territory equipment for indicating user receives, on D2D link, receive.
Configuration six, network equipment are that one of user device configuration is used to indicate the group RNTI receiving in D2D group communication, so that subscriber equipment receives only broadcast or multicast information on D2D link; And/or the information in DCI indication territory is used to indicate subscriber equipment and sends on D2D link or receive.
Accordingly, subscriber equipment is being received inclusion information indication territory, and by the DCI that is used to indicate the RNTI scrambling that subscriber equipment communicates on D2Dlink, and information indication territory equipment for indicating user sends, and receive after the DCI of the group RNTI scrambling receiving in being used to indicate D2D group communication, on D2D link, send;
Subscriber equipment is being received inclusion information indication territory, and the DCI by the C-RNTI scrambling of subscriber equipment, and information indication territory equipment for indicating user sends on D2D link, and receive after the DCI of the group RNTI scrambling receiving in being used to indicate D2D group communication, on D2D link, send;
Subscriber equipment, receive the DCI of the group RNTI scrambling receiving in being used to indicate D2D group communication after, receives on D2D link.
Wherein, network equipment, according to the information indication territory in RNTI and/or DCI, indicates the subscriber equipment sending in D2D communication to send on D2D Link on N2D Link; According to the information indication territory in RNTI and/or DCI, on N2D Link, indicate the subscriber equipment receiving in D2D communication to receive on D2D Link.
Wherein, when network equipment indicates the subscriber equipment sending in D2D communication to send data on D2D Link on N2D Link, the subscriber equipment that can send in transmission indication D2D communication in the public search space of PDCCH/EPDCCH and/or the definite exclusive search volume of PDCCH/EPDCCH of subscriber equipment C-RNTI sends the DCI of data on D2D Link.
The RNTI of DCI scrambling can be C-RNTI or a RNTI or the 2nd RNTI.
Accordingly, subscriber equipment in the public search space of PDCCH/EPDCCH and/or the definite exclusive search volume of PDCCH/EPDCCH of subscriber equipment C-RNTI, receive indication D2D communication in DCI.
Wherein, when network equipment indicates the subscriber equipment receiving in D2D communication to send data on D2D Link on N2D Link, the subscriber equipment receiving in transmission indication D2D communication in the exclusive search volume of definite PDCCH/EPDCCH that can determine at public search space and/or the subscriber equipment C-RNTI of PDCCH/EPDCCH receives the DCI of data on D2D Link.
The RNTI of DCI scrambling is C-RNTI or a RNTI or the 3rd RNTI.
Accordingly, in the exclusive search volume of definite PDCCH/EPDCCH that subscriber equipment is determined at public search space and/or the subscriber equipment C-RNTI of PDCCH/EPDCCH, receive DCI.
Wherein, when network equipment indicates the subscriber equipment receiving in D2D communication to send data on D2D Link on N2D Link, in the public search space of PDCCH/EPDCCH, transmit the DCI that D2D link receives; And/or the subscriber equipment receiving in transmission indication D2D communication in the exclusive search volume of the definite PDCCH/EPDCCH of the group RNTI of subscriber equipment receives the DCI of data on D2D Link.
The RNTI of DCI scrambling is group RNTI.
Accordingly, subscriber equipment transmits the DCI that D2D link receives in the public search space of PDCCH/EPDCCH; And/or receive DCI in the exclusive search volume of the definite PDCCH/EPDCCH of the group RNTI of subscriber equipment.
In above-mentioned six, configuration, can select part or all of configuration mode as required, also can indicate in the combination of various configurations kind.Such as being used in combination with the DCI in the RNTI in configuration one and configuration five.
Network equipment is during at D2D Link or at N2D Link transmitting data at equipment for indicating user, can adopt following scheme:
Network equipment is according to the information indication territory in the RNTI of scrambling DCI or DCI, and the subscriber equipment that indication need to be transmitted on D2D Link on N2D Link transmits on D2D Link.
Accordingly, subscriber equipment, according to the information indication territory in the RNTI of scrambling DCI or DCI, is determined on D2D Link and is transmitted.
Scheme 1: distinguish (shortcoming of this scheme is to be equivalent to a UE to have distributed a plurality of RNTI, causes the waste of RNTI resource) by RNTI:
Signaling to the transfer of data of the transfer of data of scheduling N2D link and scheduling D2D link adopts different RNTI signs, for example: the RNTI for N2D link can be C-RNTI(Cell Radio Network Temporary Identifier generally, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI symbol), RNTI for D2D link can be the RNTI of specific RNTI or network side configuration, such as D2D-C-RNTI.Subscriber equipment, by the RNTI in the dispatch receiving, just can judge that current dispatch is the transfer of data of indication N2D link, the transfer of data of still indicating D2D link like this.
In LTE Rel-8/9/10/11 and the follow-up system based on LTE, dispatch can pass through PDCCH(Physical Downlink Control Channel, Physical Downlink Control Channel) Physical Downlink Control Channel that strengthens of/EPDCCH() in public search space and the definite UE(subscriber equipment of the C-RNTI on N2D link) exclusive search volume transmits.
In this scheme, dispatch can be continued to use the bit length of existing DCI form in LTE Rel-8/9/10/11, can not increase like this subscriber equipment blind check number of times.
Concrete, network equipment sends and is used to indicate the DCI in a RNTI scrambling corresponding to the subscriber equipment of D2D Link transmitting data to the subscriber equipment that need to transmit on D2D Link on N2D Link.
Accordingly, subscriber equipment receives and is used to indicate after the DCI of a RNTI scrambling corresponding to the subscriber equipment of D2D Link transmitting data on N2D Link, determines on D2D Link and transmits.
In force, network equipment the Physical Downlink Control Channel EPDCCH public search space of physical downlink control channel PDCCH/enhancing and/or according to the definite PDCCH/EPDCCH exclusive search volume transmission of the C-RNTI of subscriber equipment that needs to transmit data on D2D Link the DCI by a RNTI scrambling corresponding to subscriber equipment.
Accordingly, subscriber equipment receives the DCI by a RNTI scrambling corresponding to subscriber equipment at PDCCH/EPDCCH public search space and/or according to the definite exclusive search volume of PDCCH/EPDCCH of C-RNTI that needs to transmit the subscriber equipment of data on D2DLink.
Scheme 2: the mode by increase information indication territory in existing dispatch is distinguished (this mode is likely to cause the increase of blind check number of times):
If user device configuration be for can carry out the transmission of D2D, fixingly in dispatch increase an information indication territory to be used to indicate current scheduling signaling be for dispatching N2D link, still dispatching D2D link.The size in the territory of information indication here can be 1 bit or 2 bits.LTE Rel-11 and follow-up based in LTE system for the dispatch transmitting by EPDCCH, the information of its increase indication territory can be 1 bit (EPDCCH does not have the filling of DCI vague), for example: 0 represents N2D link, and 1 represents D2Dlink.
For the signaling of dispatching by PDCCH in LTE Rel-8 and the follow-up system based on LTE, the information indication territory of its increase can be 2 bits (PDCCH need to consider 1 bit padding in vague situation), for example: 00 represents N2D link, and 11 represent D2D link.In the mode by increase information indication territory is distinguished in dispatch, to the signaling of the transfer of data of the transfer of data of scheduling N2D link and scheduling D2D link, can adopt identical RNTI sign, be C-RNTI.
In LTE Rel-8/9/10/11 and the follow-up system based on LTE, in the public search space of PDCCH/EPDCCH, due to the DCI length of subscriber equipment (only supporting N2D transmission) and the DCI length different (as shown in schemes 2) of the subscriber equipment of scheduling N2D+D2D transmission of the traditional N2D transmission of scheduling, the mode of so corresponding dispatch transmission has following two kinds:
2.1: in the public search space of EPDCCH/PDCCH, only dispatch the transmission of the N2D of N2D+D2D subscriber equipment, its DCI form is identical with traditional DCI form, the information that does not comprise the increase in scheme 2 is indicated territory.
In the exclusive search volume of the definite subscriber equipment of the C-RNTI of EPDCCH/PDCCH, the DCI form of its transmission has been increase in the scheme 2 DCI form in information indication territory, it both can dispatch the transmission of N2D, also can dispatch the transmission of D2D.(this method can not increase extra blind check number of times, but has reduced the candidate(candidate of blind check) number).
A kind of method 2.2: increase DCI form of blind check in public space, i.e. the DCI form in increase information indication territory in scheme 2.User, establish in exclusive search volume, the DCI form of its transmission has been increase in the scheme 2 DCI form in information indication territory, it both can dispatch the transmission of N2D, also can dispatch the transmission of D2D.(this method can increase the blind check number of times of extra public space, but the number of times increasing is fewer, according to the definition of existing search volume, only increases blind check number of times 6 times).
Concrete, the different bit values in first information indication territory represent to be used to indicate at D2D Link transmitting data or at N2D Link transmitting data; Network equipment sends and comprises the DCI being used to indicate in the first information indication territory of D2D Link transmitting data to the subscriber equipment that need to transmit on D2DLink on N2D Link.
Accordingly, subscriber equipment receives to comprise and is used to indicate after the DCI in the first information indication territory of D2D Link transmitting data on N2D Link, determines on D2D Link and transmits.
In force, network equipment PDCCH/EPDCCH public search space and/or according to the definite exclusive search volume of the PDCCH/EPDCCH transmission package of the C-RNTI of subscriber equipment that needs to transmit data on D2DLink containing the DCI being used to indicate in the first information indication territory of D2D Link transmitting data.
Accordingly, subscriber equipment receives and comprises the DCI being used to indicate in the first information indication territory of D2DLink transmitting data at PDCCH/EPDCCH public search space and/or according to the exclusive search volume of the definite PDCCH/EPDCCH of the C-RNTI of subscriber equipment.
Network equipment is, while sending data or reception data, can adopt following scheme at equipment for indicating user:
Network equipment is according to the information indication territory in the RNTI of scrambling DCI or DCI, and the subscriber equipment that indication need to send on D2D Link on N2D Link sends data, and the subscriber equipment that indication need to receive on D2D Link on N2D Link receives.
Accordingly, subscriber equipment, according to the information indication territory in the RNTI of scrambling DCI or DCI, is determined and is sent data or receive data.
Scheme 1: distinguish the receipts of subscriber equipment and send out with RNTI.
For example, for D2D subscriber equipment (can carry out the subscriber equipment of D2D and N2D) configures a plurality of RNTI: be that D2D sends with the dispatch of D2D-TX-RNTI sign, the dispatch of D2D-RX-RNTI sign is that D2D receives.A D2D subscriber equipment can configure (or a plurality of) D2D-TX-RNTI and D2D-RX-RNTI simultaneously.
When one group of UE carries out group communication, can be a plurality of RNTI of each user device configuration, for example: one is D2D-TX-RNTI, being used for identifying D2D subscriber equipment sends, one is configured to D2D-group-RX-RNTI, for the UE identifying in group, receive, when the subscriber equipment in group is received the dispatch of D2D-TX-RNTI and D2D-group-RX-RNTI sign simultaneously, the dispatch of D2D-TX-RNTI sign covers the dispatch of D2D-group-RX-RNTI sign.
In this scheme, dispatch can be continued to use existing DCI bit length in LTE Rel-8/9/10/11, can not increase like this subscriber equipment blind check number of times.
Concrete, the DCI of the 2nd RNTI scrambling that network equipment sends on D2D link to the subscriber equipment transmission equipment for indicating user that need to send on D2D Link on N2D Link; On N2DLink, to the subscriber equipment that need to receive, send the DCI that is used to indicate the 3rd RNTI scrambling that subscriber equipment receives on D2Dlink on D2D Link.
Accordingly, if subscriber equipment receives on N2D Link, be used to indicate after the DCI that sends the 2nd RNTI scrambling that the subscriber equipment of data is corresponding, determine and send data;
If subscriber equipment receives on N2D Link, be used to indicate after the DCI that receives the 3rd RNTI scrambling that the subscriber equipment of data is corresponding, determine and receive data.
In force, network equipment sends the DCI of the 2nd RNTI scrambling that subscriber equipment is corresponding, comprising:
Network equipment the Physical Downlink Control Channel EPDCCH public search space of physical downlink control channel PDCCH/enhancing and/or according to the definite PDCCH/EPDCCH exclusive search volume transmission of the C-RNTI of subscriber equipment that needs to send data on D2D Link the DCI by the 2nd RNTI scrambling corresponding to subscriber equipment;
Network equipment sends the DCI of the 3rd RNTI scrambling that subscriber equipment is corresponding, comprising:
Network equipment the Physical Downlink Control Channel EPDCCH public search space of physical downlink control channel PDCCH/enhancing and/or according to the definite PDCCH/EPDCCH exclusive search volume transmission of the C-RNTI of subscriber equipment that needs to receive data on D2D Link the DCI by the 3rd RNTI scrambling corresponding to subscriber equipment.
Accordingly, subscriber equipment receives the DCI of the 2nd RNTI scrambling that subscriber equipment is corresponding, comprising:
Subscriber equipment is at the Physical Downlink Control Channel EPDCCH public search space of physical downlink control channel PDCCH/enhancing and/or receive the DCI by the 2nd RNTI scrambling corresponding to subscriber equipment according to the exclusive search volume of the definite PDCCH/EPDCCH of the C-RNTI of subscriber equipment;
Subscriber equipment receives the DCI of the 3rd RNTI scrambling that subscriber equipment is corresponding, comprising:
Subscriber equipment is at the Physical Downlink Control Channel EPDCCH public search space of physical downlink control channel PDCCH/enhancing and/or transmit the DCI by the 3rd RNTI scrambling corresponding to subscriber equipment according to the exclusive search volume of the definite PDCCH/EPDCCH of the C-RNTI of subscriber equipment.
Scheme 2: be to receive or send by what increase the indication of an information indication territory indication current scheduling signaling in dispatch.The size in the territory of information indication here can be 1 bit or 2 bits.
LTE Rel-11 and the follow-up dispatch based on transmitting by EPDCCH in LTE system, the information indication territory of its increase can be 1 bit (EPDCCH does not have the filling of DCI vague), for example: 0 represents to receive, and 1 represents to send.
For the signaling of dispatching by PDCCH in LTE Rel-8 and the follow-up system based on LTE, the information indication territory of its increase can be 2 bits (PDCCH need to consider 1 bit padding in vague situation), for example: 00 represents to receive, and 11 represent to send.
When one group of subscriber equipment carries out group communication, for dispatching the dispatch that sends subscriber equipment, by being used to indicate, in current signaling, being used to indicate the signaling that receives or send and being set to transmission state, to dispatching in group communication in the dispatch that other subscriber equipment receives, by being used to indicate, in current signaling, being used to indicate the signaling that receives or send and being set to accepting state.
Concrete, the different bit values that are used to indicate the second information indication territory that sends data represent to send data and still receive data; Network equipment sends and comprises the DCI that is used to indicate the second information indication territory that sends data to the subscriber equipment that need to send on D2D Link on N2D Link; On N2D Link, to the subscriber equipment that need to receive on D2D Link, send and comprise the DCI that is used to indicate the second information indication territory that receives data.
Accordingly, if subscriber equipment receives on N2D Link, comprise the DCI that is used to indicate the second information indication territory that sends data, determine and send data;
If subscriber equipment receives on N2D Link, comprise the DCI that is used to indicate the second information indication territory that receives data, determine and receive data.
In force, network equipment sends and comprises the DCI that is used to indicate the second information indication territory that sends data, comprising:
Network equipment PDCCH/EPDCCH public search space and/or according to the definite exclusive search volume of the PDCCH/EPDCCH transmission package of the C-RNTI of subscriber equipment that needs to send data on D2D Link containing the DCI that is used to indicate the second information indication territory that sends data;
Network equipment sends and comprises the DCI that is used to indicate the second information indication territory that receives data, comprising:
Network equipment PDCCH/EPDCCH public search space and/or according to the definite exclusive search volume of the PDCCH/EPDCCH transmission package of the C-RNTI of subscriber equipment that needs to receive data on D2D Link containing the DCI that is used to indicate the second information indication territory that receives data.
Accordingly, subscriber equipment receives and comprises the DCI that is used to indicate the second information indication territory that sends data, comprising:
Subscriber equipment is indicated the DCI in territory at PDCCH/EPDCCH public search space and/or according to the exclusive search volume of the definite PDCCH/EPDCCH of the C-RNTI of subscriber equipment transmission package containing the second information that is used to indicate transmission data;
Subscriber equipment receives and comprises the DCI that is used to indicate the second information indication territory that receives data, comprising:
Subscriber equipment is indicated the DCI in territory at PDCCH/EPDCCH public search space and/or according to the exclusive search volume of the definite PDCCH/EPDCCH of the C-RNTI of subscriber equipment transmission package containing the second information that is used to indicate reception data.
According to foregoing, in force, network equipment has following four kinds of processing modes:
Mode one, network equipment can be according to the RNTI equipment for indicating user of scrambling DCI at D2D Link or at N2D Link transmitting data; And if at D2D Link transmitting data, subscriber equipment is to send data or receive data;
Mode two, network equipment can also be according to the information indication territory equipment for indicating user in DCI at D2DLink or at N2D Link transmitting data; And if at D2D Link transmitting data, subscriber equipment is to send data or receive data;
Mode three, network equipment can also be according to the RNTI equipment for indicating user of scrambling DCI at D2DLink or at N2D Link transmitting data; And be to send data or receive data according to the information indication territory equipment for indicating user in DCI;
Mode four, network equipment can also be according to the information indication territory equipment for indicating user in DCI at D2DLink or at N2D Link transmitting data; And be send data or receive data according to the RNTI equipment for indicating user of scrambling DCI, under certain this mode, in fact by a RNTI, just can complete above-mentioned two kinds of indications, institute can cause the wasting of resources by this way.
For aforesaid way one～mode three, describe in detail below, mode four is similar with aforesaid way one～mode three, repeats no more.
Mode one, network equipment, according to the RNTI of scrambling DCI, indicate the subscriber equipment sending in D2D transmission to send data on D2D Link on N2D Link, and the subscriber equipment receiving in indication D2D transmission receives data on D2D Link.
Concrete, network equipment sends and is used to indicate the DCI that sends the 2nd RNTI scrambling that the subscriber equipment sending of data is corresponding on D2D Link to the subscriber equipment sending in D2D transmission on N2D Link, on N2D Link, to the subscriber equipment receiving in D2D transmission, sends and is used to indicate the DCI that receives the 3rd RNTI scrambling that the subscriber equipment receiving of data is corresponding on D2D Link;
Accordingly, if subscriber equipment receives on N2D Link, be used to indicate the DCI that sends the 2nd RNTI scrambling that the subscriber equipment sending of data is corresponding on D2D Link, on D2D Link, send data;
If subscriber equipment receives on N2D Link, be used to indicate the DCI that receives the 3rd RNTI scrambling that the subscriber equipment receiving of data is corresponding on D2D Link, on D2D Link, receive data.
Wherein, being used to indicate the meaning that sends the 2nd RNTI that the subscriber equipment sending of data is corresponding on D2D Link is: be used to indicate the 2nd RNTI sending that sends data on D2D Link, and the 2nd RNTI is the 2nd RNTI corresponding to subscriber equipment sending.Follow-up similar description is repetition of explanation no longer.
In force, network equipment transmits the DCI by the 2nd RNTI scrambling corresponding to the subscriber equipment sending at PDCCH/EPDCCH public search space and/or according to the definite exclusive search volume of PDCCH/EPDCCH of C-RNTI that sends the subscriber equipment of data; At PDCCH/EPDCCH public search space and/or according to the definite exclusive search volume of PDCCH/EPDCCH of C-RNTI that receives the subscriber equipment of data, transmit the DCI by the 3rd RNTI scrambling corresponding to the subscriber equipment of receiving data;
Accordingly, subscriber equipment receives the DCI by the 2nd RNTI scrambling corresponding to the subscriber equipment sending at PDCCH/EPDCCH public search space and/or according to the definite exclusive search volume of PDCCH/EPDCCH of C-RNTI that sends the subscriber equipment of data;
Subscriber equipment receives the DCI by the 3rd RNTI scrambling corresponding to the subscriber equipment receiving at PDCCH/EPDCCH public search space and/or according to the definite exclusive search volume of PDCCH/EPDCCH of C-RNTI that receives the subscriber equipment of data.
Wherein, by the DCI of the 2nd RNTI scrambling with by the DCI of the 3rd RNTI scrambling, can send simultaneously, also can send respectively.
Preferably, if carry out the D2D of group communication, the subscriber equipment that network equipment sends in D2D transmission in N2D Link Shang Xiang group sends and is used to indicate the DCI that sends the 2nd RNTI scrambling that the subscriber equipment of data is corresponding on D2D Link, to all subscriber equipmenies in group, send and be used to indicate the DCI that receives group RNTI scrambling corresponding to the group of data on D2DLink, so that send the subscriber equipment of data in group, on D2D Link, send data, in group, other subscriber equipment receives data on D2D Link.
Accordingly, if carry out the D2D of group communication, subscriber equipment is received to be used to indicate and on D2D Link, is sent the DCI of the 2nd RNTI scrambling that the subscriber equipment of data is corresponding and be used to indicate after the DCI that receives group RNTI scrambling corresponding to the group of data on D2D Link, on D2D Link, sends data on N2D Link; That is to say, if receive the DCI of the 2nd RNTI scrambling that subscriber equipment is corresponding, only according to the indication of the 2nd RNTI, process;
If carry out the D2D of group communication, on subscriber equipment N2D Link, receive and be used to indicate after the DCI that receives group RNTI scrambling corresponding to the group of data on D2D Link, on D2D Link, receive data.
Wherein, by the DCI of the 2nd RNTI scrambling with by the DCI of group RNTI scrambling, can send simultaneously, also can send respectively.
For carrying out the D2D of group communication, the DCI of the group RNTI scrambling that the DCIHe group of the 2nd RNTI scrambling that network equipment transmission subscriber equipment is corresponding is corresponding, comprising:
Network equipment PDCCH/EPDCCH public search space and/or according to the definite PDCCH/EPDCCH exclusive search volume transmission of the C-RNTI of subscriber equipment that needs to send data on D2D Link the DCI by the 2nd RNTI scrambling corresponding to subscriber equipment; At PDCCH/EPDCCH public search space and/or according to the definite exclusive search volume of PDCCH/EPDCCH of group RNTI corresponding to group, transmit the DCI by group RNTI scrambling corresponding to group.
Accordingly, subscriber equipment receives the DCI of the 2nd RNTI scrambling that subscriber equipment is corresponding, comprising:
Network equipment is the DCI by the 2nd RNTI scrambling corresponding to subscriber equipment in the definite PDCCH/EPDCCH of the C-RNTI of PDCCH/EPDCCH public search space and/or subscriber equipment exclusive search volume transmission;
Subscriber equipment receives the DCI of group RNTI scrambling corresponding to group, comprising:
Network equipment transmits the DCI by group RNTI scrambling corresponding to group at PDCCH/EPDCCH public search space and/or according to the exclusive search volume of the definite PDCCH/EPDCCH of group RNTI.
For mode one, if do not carry out the D2D of group communication, network equipment need to be three RNTI of user device configuration, i.e. N2D transmission is carried out in C-RNTI indication, D2D-TX-RNTI is used to indicate and on D2D, sends data, and D2D-RX-RNTI is used to indicate and on D2D, receives data.
If carry out the D2D of group communication, network equipment need to be three RNTI of user device configuration, be that N2D transmission is carried out in C-RNTI indication, D2D-TX-RNTI is used to indicate and on D2D, sends data, and the subscriber equipment that D2D-group-RX-RNTI is used to indicate in group receives data on D2D.
Mode two, network equipment are according to the information indication territory in DCI, on N2D Link, indicate the subscriber equipment sending in D2D transmission to send data on D2D Link, and the subscriber equipment receiving in indication D2D transmission receive data on D2D Link.
Concrete, network equipment is by N2D Link, sends to comprise be used to indicate in the first information indication territory of D2D Link transmitting data and be used to indicate the DCI in the second information indication territory that sends data to the subscriber equipment sending in D2D transmission; By N2D Link, to the subscriber equipment receiving in D2D transmission, send to comprise and be used to indicate in the first information indication territory of D2D Link transmitting data and be used to indicate the DCI in the second information indication territory that receives data;
Accordingly, if subscriber equipment is received and comprised the first information indication territory and the DCI that is used to indicate the second information indication territory that sends data being used to indicate at D2D Link transmitting data by N2D Link, on D2D Link, send data;
If subscriber equipment is received and comprised the first information indication territory and the DCI that is used to indicate the second information indication territory that receives data being used to indicate at D2D Link transmitting data by N2D Link, on D2D Link, receive data.
In force, network equipment is indicated the DCI in territory containing the first information indication territory being used to indicate at D2D Link transmitting data with the second information that is used to indicate transmission data by EPDCCH transmission package, by PDCCH transmission package, containing the first information indication territory being used to indicate at D2D Link transmitting data, indicates the DCI in territory with the second information that is used to indicate reception data; Or containing the first information indication territory being used to indicate at D2D Link transmitting data, indicate the DCI in territory with the second information that is used to indicate transmission data by PDCCH transmission package, by EPDCCH transmission package, containing the first information indication territory being used to indicate at D2D Link transmitting data, indicate the DCI in territory with the second information that is used to indicate reception data;
Accordingly, subscriber equipment receives to comprise to be used to indicate at the first information of D2D Link transmitting data by EPDCCH and indicates territory and be used to indicate the DCI in the second information indication territory that sends data or received and comprised the first information indication territory and the DCI that is used to indicate the second information indication territory that sends data being used to indicate at D2D Link transmitting data by PDCCH;
Subscriber equipment is received and is comprised the first information indication territory and the DCI that is used to indicate the second information indication territory that receives data being used to indicate at D2D Link transmitting data by EPDCCH; Or receive and comprise first information indication territory and the DCI that is used to indicate the second information indication territory that receives data by PDCCH.
Wherein, network equipment PDCCH/EPDCCH public search space and/or according to the definite exclusive search volume of the PDCCH/EPDCCH transmission package of the C-RNTI of subscriber equipment that needs to send data on D2D Link containing being used to indicate in the first information indication territory of D2D Link transmitting data and being used to indicate the DCI in the second information indication territory that sends data;
Network equipment PDCCH/EPDCCH public search space and/or according to the definite exclusive search volume of the PDCCH/EPDCCH transmission package of the C-RNTI of subscriber equipment that needs to receive data on D2D Link containing being used to indicate in the first information indication territory of D2D Link transmitting data and being used to indicate the DCI in the second information indication territory that receives data;
Accordingly, subscriber equipment receives and comprises the first information indication territory and the DCI that is used to indicate the second information indication territory that sends data being used to indicate at D2D Link transmitting data at PDCCH/EPDCCH public search space and/or according to the exclusive search volume of the definite PDCCH/EPDCCH of the C-RNTI of self;
Subscriber equipment receives and comprises the first information indication territory and the DCI that is used to indicate the second information indication territory that receives data being used to indicate at D2D Link transmitting data at PDCCH/EPDCCH public search space and/or according to the exclusive search volume of the definite PDCCH/EPDCCH of the C-RNTI of self.
Wherein, comprise the first information indication territory being used to indicate at D2D Link transmitting data and can send with the DCI that is used to indicate the second information indication territory that receives data with being used to indicate the DCI in the second information indication territory that sends data and comprising the first information indication territory being used to indicate at D2D Link transmitting data simultaneously, also can send respectively.
Being used to indicate at the first information of D2D Link transmitting data and indicating territory, be used to indicate the second information indication territory that sends the second information indication territory of data and be used to indicate reception data can be that the information newly increasing in DCI is indicated the bit value in territory, can be also that in DCI, the bit value in existing information indication territory is given new implication.
Such as indicating territories for increasing by two information in DCI, first information indicates domain representation at D2D or in N2D transmission, and the transmission of second information indication domain representation still receives.
Suppose that each information indication territory is 1 bit, in first information indication territory, 0 represents D2D, and 1 represents N2D; In second information indication territory, 0 represents to send, 0 represents to receive, if network equipment is given the subscriber equipment sending on D2D indication, in first information indication territory for 0(is first information indication territory), in second information indication territory, for 1(is used to indicate the second information that sends data, indicate territory); If network equipment is given the indication of the subscriber equipment receive on D2D, in first information indication territory for 0(is first information indication territory), in second information indication territory, for 0(is used to indicate the second information that receives data, indicate territory).
Preferably, if carry out the D2D of group communication, the subscriber equipment that network equipment sends in D2D transmission in N2D Link Shang Xiang group sends and comprises the first information indication territory and the DCI that is used to indicate the second information indication territory that sends data being used to indicate at D2D Link transmitting data, all subscriber equipmenies transmissions in group comprise the first information indication territory and the DCI that is used to indicate the second information indication territory that receives data being used to indicate at D2D Link transmitting data, so that send the subscriber equipment of data in group, on D2DLink, send data, in group, other subscriber equipment receives data on D2D Link.
Accordingly, subscriber equipment receives and comprises the first information indication territory and the DCI that is used to indicate the second information indication territory that sends data being used to indicate at D2D Link transmitting data on N2D Link, and receive to comprise and be used to indicate in the first information indication territory of D2D Link transmitting data and be used to indicate after the DCI in the second information indication territory that receives data, on D2D Link, send data; That is to say, if received, comprise the first information indication territory and the DCI that is used to indicate the second information indication territory that sends data being used to indicate at D2D Link transmitting data, only according to first information indication territory and the indication that is used to indicate the second information indication territory that sends data, process;
Subscriber equipment receives to comprise to be used to indicate at the first information of D2D Link transmitting data and indicates territory and be used to indicate after the DCI in the second information indication territory that receives data on N2D Link, on D2D Link, receives data.
In force, network equipment sends and comprises the first information indication territory and the DCI that is used to indicate the second information indication territory that sends data being used to indicate at D2D Link transmitting data, comprising:
Network equipment PDCCH/EPDCCH public search space and/or according to the definite exclusive search volume of the PDCCH/EPDCCH transmission package of the C-RNTI of subscriber equipment that needs to send data on D2D Link containing being used to indicate in the first information indication territory of D2D Link transmitting data and being used to indicate the DCI in the second information indication territory that sends data;
Network equipment sends and comprises the first information indication territory and the DCI that is used to indicate the second information indication territory that receives data being used to indicate at D2D Link transmitting data, comprising:
Network equipment is indicated the DCI in territory at PDCCH/EPDCCH public search space and/or according to the exclusive search volume of the definite PDCCH/EPDCCH of the C-RNTI of group transmission package containing first information indication territory and the second information that is used to indicate reception data.
Accordingly, subscriber equipment receives and comprises the first information indication territory and the DCI that is used to indicate the second information indication territory that sends data being used to indicate at D2D Link transmitting data, comprising:
Subscriber equipment receives and comprises the first information indication territory and the DCI that is used to indicate the second information indication territory that sends data being used to indicate at D2D Link transmitting data at PDCCH/EPDCCH public search space and/or according to the exclusive search volume of the definite PDCCH/EPDCCH of the C-RNTI of subscriber equipment;
Subscriber equipment receives and comprises the first information indication territory and the DCI that is used to indicate the second information indication territory that receives data being used to indicate at D2D Link transmitting data, comprising:
Subscriber equipment receives and comprises the first information indication territory and the DCI that is used to indicate the second information indication territory that receives data being used to indicate at D2D Link transmitting data at PDCCH/EPDCCH public search space and/or according to the exclusive search volume of the definite PDCCH/EPDCCH of the C-RNTI of group.
For mode two, first information indication territory and the second information indication territory also can be combined into an information indication territory, by increase information indication territory bit number, realize at an information indication territory clock and indicate on D2D or N2D and communicate by letter, and indication sends or receives again.Such as dibit, 00 is illustrated in the upper communication of N2D, and 01 is illustrated in the upper transmission of D2D, and 10 are illustrated in D2D above receives.
Mode three, network equipment are according to the information indication territory in the RNTI of scrambling DCI and DCI, on N2D Link, indicate the subscriber equipment sending in D2D transmission to send data on D2D Link, and the subscriber equipment receiving in indication D2D transmission receive data on D2D Link.
Concrete, network equipment is on N2D Link, to the subscriber equipment sending in D2D transmission, send and be used to indicate in a RNTI scrambling corresponding to the subscriber equipment sending of D2D Link transmitting data, and comprise the DCI that is used to indicate the second information indication territory that sends data; And on N2D Link, to the subscriber equipment receiving in D2D transmission, send and be used to indicate in a RNTI scrambling corresponding to the subscriber equipment receiving of D2D Link transmitting data, and comprise the DCI that is used to indicate the second information indication territory that receives data;
Accordingly, if receiving on N2D Link, subscriber equipment is used to indicate in a RNTI scrambling corresponding to the subscriber equipment sending of D2D Link transmitting data, and comprise the DCI that is used to indicate the second information indication territory that sends data, on D2D Link, send data;
If receiving on N2D Link, subscriber equipment is used to indicate in a RNTI scrambling corresponding to the subscriber equipment receiving of D2D Link transmitting data, and comprise the DCI that is used to indicate the second information indication territory that receives data, on D2D Link, receive data.
In force, network equipment is used to indicate in a RNTI scrambling corresponding to the subscriber equipment sending of D2D Link transmitting data at PDCCH/EPDCCH public search space and/or according to the definite PDCCH/EPDCCH exclusive search volume transmission of C-RNTI that sends the subscriber equipment of data, and comprises the DCI that is used to indicate the second information indication territory that sends data;
Network equipment is used to indicate in a RNTI scrambling corresponding to the subscriber equipment receiving of D2DLink transmitting data at PDCCH/EPDCCH public search space and/or according to the definite PDCCH/EPDCCH exclusive search volume transmission of C-RNTI that receives the subscriber equipment of data, and comprises the DCI that is used to indicate the second information indication territory that receives data.
Accordingly, subscriber equipment receives and is used to indicate in a RNTI scrambling corresponding to the subscriber equipment sending of D2D Link transmitting data at PDCCH/EPDCCH public search space and/or according to the definite exclusive search volume of PDCCH/EPDCCH of C-RNTI that sends the subscriber equipment of data, and comprises the DCI that is used to indicate the second information indication territory that sends data;
Subscriber equipment receives and is used to indicate in a RNTI scrambling corresponding to the subscriber equipment receiving of D2D Link transmitting data at PDCCH/EPDCCH public search space and/or according to the definite exclusive search volume of PDCCH/EPDCCH of C-RNTI that receives the subscriber equipment of data, and comprises the DCI that is used to indicate the second information indication territory that receives data.
Wherein, by a RNTI scrambling, and comprise be used to indicate the DCI in the second information indication territory that sends data with by a RNTI scrambling, and comprise the DCI that is used to indicate the second information indication territory that receives data and can send simultaneously, also can send respectively.
Being used to indicate the second information indication territory that sends the second information indication territory of data and be used to indicate reception data can be the bit value in the information indication territory newly increasing in DCI, can be also that in DCI, the bit value in existing information indication territory is given new implication.
Such as indicating territory for increasing by 1 information in DCI, this information indication domain representation sends or receives.
Suppose that this information indication territory is 1 bit, in information indication territory, 0 represents to send, 0 represents to receive, if network equipment is given the subscriber equipment sending on D2D indication, in this information indication territory, for 1(, be used to indicate the second information indication territory of transmission data), and the DCI that comprises this information indication territory by the 4th RNTI scrambling; If network equipment is given the subscriber equipment receiving on D2D indication, in this information indication territory, for 0(, be used to indicate the second information indication territory of reception data), and the DCI that comprises this information indication territory by the 4th RNTI scrambling.
Preferably, if carry out the D2D of group communication, the subscriber equipment that network equipment sends in D2D transmission in N2D Link Shang Xiang group sends and is used to indicate in a RNTI scrambling corresponding to the subscriber equipment of D2D Link transmitting data, and comprises the DCI that is used to indicate the second information indication territory that sends data; Subscriber equipment transmission in group is used to indicate a corresponding RNTI scrambling in the group of D2D Link transmitting data, and comprise the DCI that is used to indicate the second information indication territory that receives data, so that send the subscriber equipment of data in group, on D2D Link, send data, in group, other subscriber equipment receives data on D2DLink.
Accordingly, if carry out the D2D of group communication, subscriber equipment receives and is used to indicate in a RNTI scrambling corresponding to the subscriber equipment of D2D Link transmitting data on N2D Link, and comprise the DCI that is used to indicate the second information indication territory that sends data, and receive and be used to indicate a corresponding RNTI scrambling in the group of D2D Link transmitting data, and comprise after the DCI that is used to indicate the second information indication territory that receives data, on D2D Link, send data; That is to say, if receive a RNTI scrambling, and comprise the DCI that is used to indicate the second information indication territory that sends data, only according to a RNTI, process with the indication that is used to indicate the second information indication territory that sends data;
If carry out the D2D of group communication, subscriber equipment is used to indicate a corresponding RNTI scrambling in the group of D2D Link transmitting data receiving, and comprises after the DCI that is used to indicate the second information indication territory that receives data, on D2D Link, receives data.
In force, network equipment sends a RNTI scrambling corresponding to subscriber equipment, and comprises the DCI that is used to indicate the second information indication territory that sends data, comprising:
Network equipment is at PDCCH/EPDCCH public search space and/or according to a definite RNTI scrambling corresponding to the exclusive search volume of PDCCH/EPDCCH transmission user equipment of C-RNTI that needs to send the subscriber equipment of data on D2D Link, and comprises the DCI that is used to indicate the second information indication territory that sends data;
Network equipment sends a RNTI scrambling corresponding to group, and comprises the DCI that is used to indicate the second information indication territory that receives data, comprising:
Network equipment is at PDCCH/EPDCCH public search space and/or according to a RNTI scrambling corresponding to the definite PDCCH/EPDCCH of a RNTI corresponding to group exclusive search volume transmission group, and the DCI that comprises the second information indication territory that is used to indicate reception data.
Accordingly, subscriber equipment receives a RNTI scrambling, and comprises the DCI that is used to indicate the second information indication territory that sends data, comprising:
Subscriber equipment receives a RNTI scrambling at PDCCH/EPDCCH public search space and/or according to the exclusive search volume of the definite PDCCH/EPDCCH of the C-RNTI of subscriber equipment, and comprises the DCI that is used to indicate the second information indication territory that sends data;
Subscriber equipment receives a RNTI scrambling, and comprises the DCI that is used to indicate the second information indication territory that receives data, comprising:
Subscriber equipment receives a RNTI scrambling at PDCCH/EPDCCH public search space and/or according to the exclusive search volume of the definite PDCCH/EPDCCH of a RNTI corresponding to group, and comprises the DCI that is used to indicate the second information indication territory that receives data.
For mode three, if do not carry out the D2D of group communication, network equipment need to be two RNTI of user device configuration, i.e. N2D transmission is carried out in C-RNTI indication, and D2D-RNTI is used to indicate the transmitting data at D2D.
If carry out the D2D of group communication, network equipment need to be two RNTI of user device configuration, i.e. N2D transmission is carried out in C-RNTI indication, and D2D-group--RNTI is used to indicate subscriber equipment in group at D2D transmitting data.
It should be noted that, an above-mentioned RNTI, the 2nd RNTI, the 3rd RNTI, group RNTI etc., just in order to distinguish the RNTI of different implications, although that is to say it is all a RNTI, but can only represent that all RNTI are used to indicate the transmitting data at D2D Link, but be not all identical RNTI.
The RNTI of take below describes as example.
Such as a RNTI who sends for subscriber equipment A and for a RNTI of subscriber equipment B transmission be exactly not identical RNTI.A RNTI who sends for subscriber equipment A is a RNTI who distributes for subscriber equipment A; A RNTI who sends for subscriber equipment B is a RNTI who distributes for subscriber equipment B.Subscriber equipment A, after receiving the DCI of an own corresponding RNTI scrambling, just knows that this DCI is oneself; Subscriber equipment B, after receiving the DCI of the RNTI scrambling that subscriber equipment A is corresponding, just knows that this DCI is not oneself.
Can also be one group of user equipment allocation the one RNTI, and then for each subscriber equipment in group distributes respectively each self-corresponding RNTI, can make like this subscriber equipment whether need to receive to the DCI of different RNTI scramblings and judge.For receiving after each self-corresponding RNTI, all can process according to the indication of a RNTI.
Row give some instances below, and the solution of the present invention is introduced.
Embodiment 1: by the mode in increase information indication territory in dispatch, combine that to distinguish current be scheduling N2D link or D2D is link, and the dispatch of distinguishing current network side apparatus is the transmission of D2D link, or receives.
As above, network equipment indicates D2D subscriber equipment A in the resource of appointment by dispatch on N2D link, mode or reception according to the transmission property of appointment in the enterprising row data of D2D link, the current network side apparatus of dispatch distinguish to(for) D2D subscriber equipment is for the scheduling of N2D link or for the scheduling of D2D link, and the dispatch of distinguishing current network side apparatus is the transmission of D2D link, or receive, this situation can joint instructions:
The fixing information that increases by 2 bits in PDCCH/EPDCCH, MSB is for representing for the scheduling of N2Dlink or for example, for the scheduling of D2D link: 0 represents the scheduling of N2D link, and 1 represents the scheduling of D2D link.It is the transmission of D2D link that LSB is used to indicate, or receives.For example: 0 represents to receive, and 1 represents to send.(increase here and there will not be after 2 bits vague not know current D2D link or the blooming of N2D link only after filling)
In this case, if MSB value is 0, LSB value is 0 or 1 to be all invalid, and this situation can be 0 or 1 by LSB fixed value, for the consistency detection of PDCCH/EPDCCH, reduces PDCCH/EPDCCH probability of false detection.
Embodiment 2: by being that mode that a UE configures a plurality of RNTI combines that to distinguish current be scheduling N2Dlink or D2D is link, and the dispatch of distinguishing current network side apparatus is the transmission of D2D link, or receives.
Be that a UE configures a plurality of RNTI, for example: C-RNTI is for the scheduling on N2D link, and D2D-TX-RNTI is used for dispatching D2D link and sends, and D2D-RX-RNTI is used for dispatching D2D link and receives.If there is group communication, can configure for the user of group communication a D2D-group-RX-RNTI for dispatching the reception of group user on D2D link.
As above, D2D subscriber equipment receives after the scheduling/indication signaling sending on the N2D link of network equipment after predetermined time skew according to the indication sending/receiving data of network equipment.Wherein subscriber equipment, after receiving the scheduling/indication signaling sending on N2D link, need to comprise the two-part processing time: detect the time of DCI, the time (roughly 20us) of subscriber equipment transceiver conversion.This predetermined time skew can be n+k, and wherein n is the subframe that on N2D link, network side sends scheduling/indication signaling, and k is the number of sub-frames of skew, and D2D subscriber equipment carries out the sending/receiving of D2D link when n+k subframe.
In LTE and the follow-up system based on LTE,
If N2D link is FDD system, k can be fixed as 4.
If N2D link is TDD system, k and TDD UL/DL sub-frame configuration so, and D2D link is relevant in the transmission of UL/DL subframe, if the sub-frame of uplink adopting, identical with the sequential relationship between PUSCH with the UL grant of LTE TDD so (form according to existing 36.213 definition would be determined k value).
Communication on D2D link comprises two kinds of scenes:
Man-to-man communication scenes (for example: D2D subscriber equipment A sends, D2D subscriber equipment B receives), network side sends by the signaling scheduling D2D subscriber equipment A of the special-purpose RNTI indication of D2D subscriber equipment A, and network equipment receives by the signaling indication D2D subscriber equipment B of the special-purpose RNTI indication of D2D subscriber equipment B.Communication scenes for one-to-many can independently be transmitted by the method for One-to-one communication.
The communication scenes of one-to-many (for example: D2D subscriber equipment A sends, D2D subscriber equipment B, C, D receives), network equipment is first by D2D subscriber equipment A, B, C, D forms a group, set up a group-RNTI, wherein network side sends by the signaling scheduling D2D subscriber equipment A of the special-purpose RNTI indication of D2D subscriber equipment A, network equipment is by D2D subscriber equipment A, B, C, the group-RNTI indication D2D subscriber equipment B of D, C, D receives, wherein for D2D subscriber equipment A, the signaling that the scheduling D2D subscriber equipment A of special-purpose RNTI indication sends covers the reception signaling of group-RNTI indication.In LTE and the follow-up system of LTE, for the signaling of group-RNTI indication, can transmit by the public search space of PDCCH/EPDCCH, or also can define the new public search space for D2D scheduling and transmit.
As shown in Figure 5, the network equipment in the system of embodiment of the present invention transfer of data comprises: configuration module 500 and indicating module 510.
Configuration module 500, is used to user device configuration for the information indication territory of RNTI and/or the DCI of D2D communication;
Indicating module 510 for according to the information indication territory of RNTI and/or DCI, indicates the subscriber equipment communicating in D2D communication to communicate by letter on D2D Link on N2D Link.
Preferably, configuration module 500 specifically for:
For one of user device configuration is used to indicate the RNTI that subscriber equipment communicates on D2D link; Or for one of user device configuration is used to indicate the 2nd RNTI that subscriber equipment sends on D2D link, and/or one be used to indicate the 3rd RNTI that subscriber equipment receives on D2D link.
Preferably, configuration module 500 specifically for:
For one of user device configuration is used to indicate the group RNTI receiving in D2D group communication; And/or one be used to indicate the 2nd RNTI that subscriber equipment sends on D2D link.
Preferably, the information in DCI indication territory is used to indicate subscriber equipment and on D2D link, sends or receive.
Preferably, configuration module 500 specifically for:
For one of user device configuration is used to indicate the RNTI that subscriber equipment communicates on D2D link; Information indication territory in DCI is used to indicate subscriber equipment and sends or receive.
Preferably, configuration module 500 specifically for:
For one of user device configuration is used to indicate the group RNTI receiving in D2D group communication; And/or the information in DCI indication territory is used to indicate subscriber equipment and sends on D2D link or receive.
Preferably, indicating module 510 specifically for:
According to the information indication territory in RNTI and/or DCI, on N2D Link, indicate the subscriber equipment sending in D2D communication to send on D2D Link; According to the information indication territory in RNTI and/or DCI, on N2D Link, indicate the subscriber equipment receiving in D2D communication to receive on D2D Link.
Preferably, indicating module 510 specifically for:
The subscriber equipment sending in transmission indication D2D communication in the public search space of PDCCH/EPDCCH and/or the definite exclusive search volume of PDCCH/EPDCCH of subscriber equipment C-RNTI sends the DCI of data on D2D Link.
Preferably, the RNTI of DCI scrambling is C-RNTI or a RNTI or the 2nd RNTI.
Preferably, indicating module 510 specifically for:
The subscriber equipment receiving in transmission indication D2D communication in the exclusive search volume of definite PDCCH/EPDCCH of determining at public search space and/or the subscriber equipment C-RNTI of PDCCH/EPDCCH receives the DCI of data on D2D Link.
Preferably, the RNTI of DCI scrambling is C-RNTI or a RNTI or the 3rd RNTI.
Preferably, indicating module 510 specifically for:
In the public search space of PDCCH/EPDCCH, transmit the DCI that D2D link receives; And/or the subscriber equipment receiving in transmission indication D2D communication in the exclusive search volume of the definite PDCCH/EPDCCH of the group RNTI of subscriber equipment receives the DCI of data on D2D Link.
Preferably, the RNTI of DCI scrambling is group RNTI.
As shown in Figure 6, the subscriber equipment in the system of embodiment of the present invention transfer of data comprises: determination module 600 and processing module 610.
The information indication territory of the RNTI for D2D communication that determination module 600 is user device configuration for definite network equipment and/or DCI;
Processing module 610, for receiving DCI, and the indication of the information in the RNTI of the DCI receiving according to scrambling and/or the DCI that receives territory, carry out D2D link communication.
Preferably, processing module 610 specifically for:
After receiving the DCI that is used to indicate the RNTI scrambling that subscriber equipment communicates on D2D link, carry out D2D link communication; After receiving the DCI that is used to indicate the 2nd RNTI scrambling that subscriber equipment sends on D2D link, on D2D link, send; After receiving the DCI that is used to indicate the 3rd RNTI scrambling that subscriber equipment receives on D2D link, on D2D link, send.
Preferably, processing module 610 specifically for:
Receive and be used to indicate the DCI of the 2nd RNTI scrambling that subscriber equipment sends on D2D link and be used to indicate after the DCI of the group RNTI scrambling receiving in D2D group communication, on D2D link, send; Receive after the DCI that is used to indicate the group RNTI scrambling receiving in D2D group communication, on D2D link, receive.
Preferably, processing module 610 specifically for:
After receiving the DCI in inclusion information indication territory, if information indication territory equipment for indicating user sends on D2D link, on D2D link, send; If information indication territory equipment for indicating user receives on D2D link, on D2D link, receive.
Preferably, processing module 610 specifically for:
Receiving inclusion information indication territory, and by being used to indicate after the DCI of the RNTI scrambling that subscriber equipment communicates on D2D link, if information indication territory equipment for indicating user sends, on D2D link, sending; Receiving inclusion information indication territory, and by being used to indicate after the DCI of the RNTI scrambling that subscriber equipment communicates on D2D link,, if information indication territory equipment for indicating user receives, on D2D link, receive.
Preferably, processing module 610 specifically for:
Receiving inclusion information indication territory, and by the DCI that is used to indicate the RNTI scrambling that subscriber equipment communicates on D2D link, and information indication territory equipment for indicating user sends, and receive after the DCI of the group RNTI scrambling receiving in being used to indicate D2D group communication, on D2D link, send; Receiving inclusion information indication territory, and the DCI by the C-RNTI scrambling of subscriber equipment, and information indication territory equipment for indicating user sends on D2D link, and receives after the DCI of the group RNTI scrambling receiving in being used to indicate D2D group communication, on D2D link, sends; Receive the DCI of the group RNTI scrambling receiving in being used to indicate D2D group communication after, on D2D link, receive.
Preferably, processing module 610 specifically for:
In the public search space of PDCCH/EPDCCH and/or the definite exclusive search volume of PDCCH/EPDCCH of subscriber equipment C-RNTI, receive DCI.
Preferably, the RNTI of DCI scrambling is C-RNTI or a RNTI or the 2nd RNTI or the 3rd RNTI.
Preferably, processing module 610 specifically for:
In the public search space of PDCCH/EPDCCH, transmit the DCI that D2D link receives; And/or the subscriber equipment receiving in reception indication D2D communication in the exclusive search volume of the definite PDCCH/EPDCCH of the group RNTI of subscriber equipment receives the DCI of data on D2D Link.
Preferably, the RNTI of DCI scrambling is group RNTI.
Based on same inventive concept, it is the method for user device configuration transfer of data that a kind of network equipment is also provided in the embodiment of the present invention, because network equipment corresponding to the method is the network equipment in the system of embodiment of the present invention transfer of data, and the principle that the method is dealt with problems is similar to system, therefore the enforcement of the method can, referring to the enforcement of the system of transfer of data, repeat part and repeat no more.
As shown in Figure 7, embodiment of the present invention network equipment is that the method for user device configuration transfer of data comprises the following steps:
Step 701, network equipment are that user device configuration is for the information indication territory of radio network temporary identifier RNTI and/or the Downlink Control Information DCI of D2D communication;
Step 702, network equipment, according to the information indication territory in RNTI and/or DCI, indicate the subscriber equipment communicating in D2D communication to communicate by letter on D2D Link on N2D Link.
In network equipment configuration, have a variety ofly, be introduced respectively below.
Configuration one, network equipment can be used to indicate the RNTI that subscriber equipment communicates on D2Dlink for one of user device configuration, if network equipment needs notifying user equipment to communicate by letter at D2D, can be with sending to subscriber equipment after a RNTI scrambling DCI, corresponding subscriber equipment is received after the DCI of a RNTI scrambling, just knows on D2D and communicates by letter; Or, network equipment is that one of user device configuration is used to indicate the 2nd RNTI that subscriber equipment sends on D2D link, and/or one be used to indicate the 3rd RNTI that subscriber equipment receives on D2D link, if network equipment needs notifying user equipment to send at D2D, can be with sending to subscriber equipment after the 2nd RNTI scrambling DCI, corresponding subscriber equipment is received after the DCI of the 2nd RNTI scrambling, just know on D2D and send, if need indication to receive, just with the 3rd RNTI scrambling.
Configuration two, network equipment can be used to indicate the group RNTI receiving in D2D group communication for one of user device configuration, so that subscriber equipment receives only broadcast or multicast information on D2D link; And/or one be used to indicate the 2nd RNTI that subscriber equipment sends on D2D link.
Information indication territory in configuration three, DCI is used to indicate subscriber equipment and on D2D link, sends or receive.Bit value corresponding to information indication territory represents different implications, such as 1 for to send on D2D link, 0 for to receive on D2D link, if network equipment needs notifying user equipment to send at D2D, can configuration information indication territory be 1, corresponding subscriber equipment is just known on D2D and is sent after receiving that the information indication territory of DCI is 1.
Configuration four, network equipment are that one of user device configuration is used to indicate the RNTI that subscriber equipment communicates on D2D link; Information indication territory in DCI is used to indicate subscriber equipment and sends or receive.This configuration is that RNTI and information indication territory are used in combination.Increase information indication territory in the DCI that adopts a RNTI scrambling, combines the object of indication thereby reach by RNTI and information indication territory.
Configuration five, network equipment are that one of user device configuration is used to indicate the group RNTI receiving in D2D group communication, so that subscriber equipment receives only broadcast or multicast information on D2D link; And/or the information in DCI indication territory is used to indicate subscriber equipment and sends on D2D link or receive.
Wherein, network equipment, according to the information indication territory in RNTI and/or DCI, indicates the subscriber equipment sending in D2D communication to send on D2D Link on N2D Link; According to the information indication territory in RNTI and/or DCI, on N2D Link, indicate the subscriber equipment receiving in D2D communication to receive on D2D Link.
When network equipment indicates the subscriber equipment sending in D2D communication to send data on D2DLink on N2D Link, the subscriber equipment that can send in transmission indication D2D communication in the public search space of PDCCH/EPDCCH and/or the definite exclusive search volume of PDCCH/EPDCCH of subscriber equipment C-RNTI sends the DCI of data on D2D Link.
The RNTI of DCI scrambling can be C-RNTI or a RNTI or the 2nd RNTI.
Wherein, when network equipment indicates the subscriber equipment receiving in D2D communication to send data on D2D Link on N2D Link, the subscriber equipment receiving in transmission indication D2D communication in the exclusive search volume of definite PDCCH/EPDCCH that can determine at public search space and/or the subscriber equipment C-RNTI of PDCCH/EPDCCH receives the DCI of data on D2D Link.
The RNTI of DCI scrambling is C-RNTI or a RNTI or the 3rd RNTI.
Wherein, when network equipment indicates the subscriber equipment receiving in D2D communication to send data on D2D Link on N2D Link, in the public search space of PDCCH/EPDCCH, transmit the DCI that D2D link receives; And/or the subscriber equipment receiving in transmission indication D2D communication in the exclusive search volume of the definite PDCCH/EPDCCH of the group RNTI of subscriber equipment receives the DCI of data on D2D Link.
The RNTI of DCI scrambling is group RNTI.
Based on same inventive concept, a kind of method of customer equipment data transmission is also provided in the embodiment of the present invention, because subscriber equipment corresponding to the method is the subscriber equipment in the system of embodiment of the present invention transfer of data, and the principle that the method is dealt with problems is similar to system, therefore the enforcement of the method can, referring to the enforcement of the system of transfer of data, repeat part and repeat no more.
As shown in Figure 8, the method for embodiment of the present invention customer equipment data transmission comprises the following steps:
Step 801, subscriber equipment determine that network equipment is the information indication territory of the RNTI for D2D communication and/or the DCI of user device configuration;
Step 802, subscriber equipment receive DCI, and the information indication territory in the RNTI of the DCI receiving according to scrambling and/or the DCI that receives, carry out D2D link communication.
Preferably, subscriber equipment carries out D2D link communication, comprising:
Subscriber equipment, after receiving the DCI that is used to indicate the RNTI scrambling that subscriber equipment communicates on D2D link, carries out D2D link communication;
Subscriber equipment, after receiving the DCI that is used to indicate the 2nd RNTI scrambling that subscriber equipment sends on D2D link, sends on D2D link;
Subscriber equipment, after receiving the DCI that is used to indicate the 3rd RNTI scrambling that subscriber equipment receives on D2D link, sends on D2D link.
Preferably, subscriber equipment carries out D2D link communication, comprising:
Subscriber equipment receives and is used to indicate the DCI of the 2nd RNTI scrambling that subscriber equipment sends on D2D link and is used to indicate after the DCI of the group RNTI scrambling receiving in D2D group communication, on D2D link, sends;
Subscriber equipment receives after the DCI that is used to indicate the group RNTI scrambling receiving in D2D group communication, on D2D link, receives.
Preferably, state subscriber equipment and carry out D2D link communication, comprising:
Subscriber equipment, after receiving the DCI in inclusion information indication territory, if information indication territory equipment for indicating user sends on D2D link, sends on D2D link; If information indication territory equipment for indicating user receives on D2D link, on D2D link, receive.
Preferably, subscriber equipment carries out D2D link communication, comprising:
Subscriber equipment is being received inclusion information indication territory, and by being used to indicate after the DCI of the RNTI scrambling that subscriber equipment communicates on D2D link, if information indication territory equipment for indicating user sends, on D2D link, sends;
Subscriber equipment is being received inclusion information indication territory, and by being used to indicate after the DCI of the RNTI scrambling that subscriber equipment communicates on D2D link,, if information indication territory equipment for indicating user receives, on D2D link, receive.
Preferably, subscriber equipment carries out D2D link communication, comprising:
Subscriber equipment is being received inclusion information indication territory, and by the DCI that is used to indicate the RNTI scrambling that subscriber equipment communicates on D2D link, and information indication territory equipment for indicating user sends, and receive after the DCI of the group RNTI scrambling receiving in being used to indicate D2D group communication, on D2D link, send;
Subscriber equipment is being received inclusion information indication territory, and the DCI by the C-RNTI scrambling of subscriber equipment, and information indication territory equipment for indicating user sends on D2D link, and receive after the DCI of the group RNTI scrambling receiving in being used to indicate D2D group communication, on D2D link, send;
Subscriber equipment, receive the DCI of the group RNTI scrambling receiving in being used to indicate D2D group communication after, receives on D2D link.
Preferably, subscriber equipment receives DCI, comprising:
Subscriber equipment receives DCI in the public search space of PDCCH/EPDCCH and/or the definite exclusive search volume of PDCCH/EPDCCH of subscriber equipment C-RNTI.
Preferably, the RNTI of DCI scrambling is C-RNTI or a RNTI or the 2nd RNTI or the 3rd RNTI.
Preferably, subscriber equipment receives DCI, comprising:
Subscriber equipment transmits the DCI that D2D link receives in the public search space of PDCCH/EPDCCH; And/or the subscriber equipment receiving in reception indication D2D communication in the exclusive search volume of the definite PDCCH/EPDCCH of the group RNTI of subscriber equipment receives the DCI of data on D2D Link.
Preferably, the RNTI of DCI scrambling is group RNTI.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing device is produced for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (47)

1. a method for transfer of data, is characterized in that, the method comprises:
Network equipment is that user device configuration is for the information indication territory of radio network temporary identifier RNTI and/or the Downlink Control Information DCI of D2D communication;
Described network equipment is according to the information indication territory in described RNTI and/or DCI, and the subscriber equipment of indicating D2D to communicate in communicating by letter on the straight-through link N2D Link of network and subscriber equipment is leading directly on link D2D Link and communicating by letter between subscriber equipment.
2. the method for claim 1, is characterized in that, described network equipment is that one of described user device configuration is used to indicate the RNTI that subscriber equipment communicates on D2D link;
Or described network equipment is that one of described user device configuration is used to indicate the 2nd RNTI that subscriber equipment sends on D2D link, and/or one is used to indicate the 3rd RNTI that subscriber equipment receives on D2D link.
3. the method for claim 1, is characterized in that, described network equipment is that one of described user device configuration is used to indicate the group RNTI receiving in D2D group communication; And/or one be used to indicate the 2nd RNTI that subscriber equipment sends on D2D link.
4. the method for claim 1, is characterized in that, the information indication territory in described DCI is used to indicate described subscriber equipment and on D2D link, sends or receive.
5. method as described in claim 1, is characterized in that, described network equipment is that one of described user device configuration is used to indicate the RNTI that subscriber equipment communicates on D2D link; Information indication territory in described DCI is used to indicate described subscriber equipment and sends or receive.
6. method as described in claim 1, is characterized in that, described network side is that one of described user device configuration is used to indicate the group RNTI receiving in D2D group communication; And/or the information in described DCI indication territory is used to indicate described subscriber equipment and sends on D2D link or receive.
7. the method as described in as arbitrary in claim 1～6, is characterized in that, described network equipment, according to the information indication territory in described RNTI and/or DCI, indicates the subscriber equipment communicating in D2D communication to communicate by letter on D2D Link on N2D Link, comprising:
Described network equipment, according to the information indication territory in described RNTI and/or DCI, indicates the subscriber equipment sending in D2D communication to send on D2D Link on N2D Link; According to the information indication territory in described RNTI and/or DCI, on N2D Link, indicate the subscriber equipment receiving in D2D communication to receive on D2D Link.
8. method as claimed in claim 7, is characterized in that, described network equipment indicates the subscriber equipment sending in D2D communication to send data on D2D Link on N2D Link, comprising:
The subscriber equipment that described network equipment sends in transmission indication D2D communication in the public search space of PDCCH/EPDCCH and/or the definite exclusive search volume of PDCCH/EPDCCH of described subscriber equipment C-RNTI sends the DCI of data on D2D Link.
9. method as described in claim 8, is characterized in that, the RNTI of described DCI scrambling is C-RNTI or a RNTI or the 2nd RNTI.
10. method as claimed in claim 7, is characterized in that, described network equipment indicates the subscriber equipment receiving in D2D communication to receive data on D2D Link on N2D Link, comprising:
The subscriber equipment receiving in transmission indication D2D communication in the exclusive search volume of definite PDCCH/EPDCCH that described network equipment is determined at public search space and/or the described subscriber equipment C-RNTI of PDCCH/EPDCCH receives the DCI of data on D2D Link.
11. methods as described in claim 10, is characterized in that, the RNTI of described DCI scrambling is C-RNTI or a RNTI or the 3rd RNTI.
12. methods as claimed in claim 7, is characterized in that, described network equipment indicates the subscriber equipment receiving in D2D communication to receive data on D2D Link on N2D Link, comprising:
Described network equipment transmits the DCI that D2D link receives in the public search space of PDCCH/EPDCCH; And/or the subscriber equipment sending in transmission indication D2D communication in the exclusive search volume of the definite PDCCH/EPDCCH of the group RNTI of described subscriber equipment sends the DCI of data on D2D Link.
13. methods as described in claim 12, is characterized in that, the RNTI of described DCI scrambling is group RNTI.
The method of 14. 1 kinds of transfer of data, is characterized in that, the method comprises:
Subscriber equipment determines that network equipment is the information indication territory of the RNTI for D2D communication and/or the DCI of described user device configuration;
Described subscriber equipment receives DCI, and the information indication territory in the RNTI of the DCI receiving according to scrambling and/or the DCI that receives, carries out D2D link communication.
15. methods as claimed in claim 14, is characterized in that, described subscriber equipment carries out D2D link communication, comprising:
Described subscriber equipment, after receiving the DCI that is used to indicate the RNTI scrambling that subscriber equipment communicates on D2D link, carries out D2D link communication;
Described subscriber equipment, after receiving the DCI that is used to indicate the 2nd RNTI scrambling that subscriber equipment sends on D2D link, sends on D2D link;
Described subscriber equipment, after receiving the DCI that is used to indicate the 3rd RNTI scrambling that subscriber equipment receives on D2D link, sends on D2D link.
16. methods as claimed in claim 14, is characterized in that, described subscriber equipment carries out D2D link communication, comprising:
Described subscriber equipment receives and is used to indicate the DCI of the 2nd RNTI scrambling that subscriber equipment sends on D2D link and is used to indicate after the DCI of the group RNTI scrambling receiving in D2D group communication, on D2D link, sends;
Described subscriber equipment receives after the DCI that is used to indicate the group RNTI scrambling receiving in D2D group communication, on D2D link, receives.
17. methods as claimed in claim 14, is characterized in that, described subscriber equipment carries out D2D link communication, comprising:
Described subscriber equipment, after receiving the DCI in inclusion information indication territory, if information indication territory indicates described subscriber equipment to send on D2D link, sends on D2D link; If information indication territory indicates described subscriber equipment to receive on D2D link, on D2D link, receive.
18. methods as described in claim 14, is characterized in that, described subscriber equipment carries out D2D link communication, comprising:
Described subscriber equipment is being received inclusion information indication territory, and by being used to indicate after the DCI of the RNTI scrambling that subscriber equipment communicates on D2D link, if information indication territory indicates described subscriber equipment to send, on D2D link, sends;
Described subscriber equipment is being received inclusion information indication territory, and by being used to indicate after the DCI of the RNTI scrambling that subscriber equipment communicates on D2D link,, if information indication territory indicates described subscriber equipment to receive, on D2D link, receive.
19. methods as described in claim 14, is characterized in that, described subscriber equipment carries out D2D link communication, comprising:
Described subscriber equipment is being received inclusion information indication territory, and by the DCI that is used to indicate the RNTI scrambling that subscriber equipment communicates on D2D link, and described information indication territory indicates described subscriber equipment to send, and receive after the DCI of the group RNTI scrambling receiving in being used to indicate D2D group communication, on D2D link, send;
Described subscriber equipment is being received inclusion information indication territory, and the DCI by the C-RNTI scrambling of described subscriber equipment, and described information indication territory equipment for indicating user sends on D2D link, and receive after the DCI of the group RNTI scrambling receiving in being used to indicate D2D group communication, on D2D link, send;
Described subscriber equipment, receive the DCI of the group RNTI scrambling receiving in being used to indicate D2D group communication after, receives on D2D link.
20. methods as described in as arbitrary in claim 14～19, is characterized in that, described subscriber equipment receives DCI, comprising:
Described subscriber equipment receives DCI in the public search space of PDCCH/EPDCCH and/or the definite exclusive search volume of PDCCH/EPDCCH of described subscriber equipment C-RNTI.
21. methods as described in claim 20, is characterized in that, the RNTI of described DCI scrambling is C-RNTI or a RNTI or the 2nd RNTI or the 3rd RNTI.
22. methods as described in as arbitrary in claim 14～19, is characterized in that, described subscriber equipment receives DCI, comprising:
Described subscriber equipment transmits the DCI that D2D link receives in the public search space of PDCCH/EPDCCH; And/or the subscriber equipment receiving in reception indication D2D communication in the exclusive search volume of the definite PDCCH/EPDCCH of the group RNTI of described subscriber equipment receives the DCI of data on D2D Link.
23. methods described in claim 22, is characterized in that, the RNTI of described DCI scrambling is group RNTI.
The network equipment of 24. 1 kinds of transfer of data, is characterized in that, this network equipment comprises:
Configuration module, is used to user device configuration for the information indication territory of RNTI and/or the DCI of D2D communication;
Indicating module for according to the information indication territory of described RNTI and/or DCI, indicates the subscriber equipment communicating in D2D communication to communicate by letter on D2D Link on N2D Link.
25. network equipments as claimed in claim 24, is characterized in that, described configuration module specifically for:
For one of described user device configuration is used to indicate the RNTI that subscriber equipment communicates on D2D link; Or for one of described user device configuration is used to indicate the 2nd RNTI that subscriber equipment sends on D2D link, and/or one be used to indicate the 3rd RNTI that subscriber equipment receives on D2D link.
26. network equipments as claimed in claim 24, is characterized in that, described configuration module specifically for:
For one of described user device configuration is used to indicate the group RNTI receiving in D2D group communication; And/or one be used to indicate the 2nd RNTI that subscriber equipment sends on D2D link.
27. network equipments as claimed in claim 24, is characterized in that, the information indication territory in described DCI is used to indicate described subscriber equipment and on D2D link, sends or receive.
28. network equipments described in claim 24, is characterized in that, described configuration module specifically for:
For one of described user device configuration is used to indicate the RNTI that subscriber equipment communicates on D2D link; Information indication territory in described DCI is used to indicate described subscriber equipment and sends or receive.
29. network equipments described in claim 24, is characterized in that, described configuration module specifically for:
For one of described user device configuration is used to indicate the group RNTI receiving in D2D group communication; And/or the information in described DCI indication territory is used to indicate described subscriber equipment and sends on D2D link or receive.
30. network equipments as described in as arbitrary in claim 24～29, is characterized in that, described indicating module specifically for:
According to the information indication territory in described RNTI and/or DCI, on N2D Link, indicate the subscriber equipment sending in D2D communication to send on D2D Link; According to the information indication territory in described RNTI and/or DCI, on N2D Link, indicate the subscriber equipment receiving in D2D communication to receive on D2D Link.
31. network equipments as claimed in claim 30, is characterized in that, described indicating module specifically for:
The subscriber equipment sending in transmission indication D2D communication in the public search space of PDCCH/EPDCCH and/or the definite exclusive search volume of PDCCH/EPDCCH of described subscriber equipment C-RNTI sends the DCI of data on D2D Link.
32. network equipments described in claim 31, is characterized in that, the RNTI of described DCI scrambling is C-RNTI or a RNTI or the 2nd RNTI.
33. network equipments as claimed in claim 30, is characterized in that, described indicating module specifically for:
The subscriber equipment receiving in transmission indication D2D communication in the exclusive search volume of definite PDCCH/EPDCCH of determining at public search space and/or the described subscriber equipment C-RNTI of PDCCH/EPDCCH receives the DCI of data on D2D Link.
34. network equipments described in claim 33, is characterized in that, the RNTI of described DCI scrambling is C-RNTI or a RNTI or the 3rd RNTI.
35. network equipments as claimed in claim 30, is characterized in that, described indicating module specifically for:
In the public search space of PDCCH/EPDCCH, transmit the DCI that D2D link receives; And/or the subscriber equipment receiving in transmission indication D2D communication in the exclusive search volume of the definite PDCCH/EPDCCH of the group RNTI of described subscriber equipment receives the DCI of data on D2D Link.
36. network equipments described in claim 35, is characterized in that, the RNTI of described DCI scrambling is group RNTI.
The subscriber equipment of 37. 1 kinds of transfer of data, is characterized in that, this subscriber equipment comprises:
The information indication territory of the RNTI for D2D communication that determination module is described user device configuration for definite network equipment and/or DCI;
Processing module, for receiving DCI, and the indication of the information in the RNTI of the DCI receiving according to scrambling and/or the DCI that receives territory, carry out D2D link communication.
38. subscriber equipmenies as claimed in claim 37, is characterized in that, described processing module specifically for:
After receiving the DCI that is used to indicate the RNTI scrambling that subscriber equipment communicates on D2D link, carry out D2D link communication; After receiving the DCI that is used to indicate the 2nd RNTI scrambling that subscriber equipment sends on D2D link, on D2D link, send; After receiving the DCI that is used to indicate the 3rd RNTI scrambling that subscriber equipment receives on D2D link, on D2D link, send.
39. subscriber equipmenies as claimed in claim 37, is characterized in that, described processing module specifically for:
Receive and be used to indicate the DCI of the 2nd RNTI scrambling that subscriber equipment sends on D2D link and be used to indicate after the DCI of the group RNTI scrambling receiving in D2D group communication, on D2D link, send; Receive after the DCI that is used to indicate the group RNTI scrambling receiving in D2D group communication, on D2D link, receive.
40. subscriber equipmenies as claimed in claim 37, is characterized in that, described processing module specifically for:
After receiving the DCI in inclusion information indication territory, if information indication territory indicates described subscriber equipment to send on D2Dlink, on D2D link, send; If information indication territory indicates described subscriber equipment to receive on D2D link, on D2D link, receive.
41. subscriber equipmenies described in claim 37, is characterized in that, described processing module specifically for:
Receiving inclusion information indication territory, and by being used to indicate after the DCI of the RNTI scrambling that subscriber equipment communicates on D2D link, if information indication territory indicates described subscriber equipment to send, on D2D link, sending; Receiving inclusion information indication territory, and by being used to indicate after the DCI of the RNTI scrambling that subscriber equipment communicates on D2D link,, if information indication territory indicates described subscriber equipment to receive, on D2D link, receive.
42. subscriber equipmenies described in claim 37, is characterized in that, described processing module specifically for:
Receiving inclusion information indication territory, and by the DCI that is used to indicate the RNTI scrambling that subscriber equipment communicates on D2D link, and described information indication territory indicates described subscriber equipment to send, and receive after the DCI of the group RNTI scrambling receiving in being used to indicate D2D group communication, on D2D link, send; Receiving inclusion information indication territory, and the DCI by the C-RNTI scrambling of described subscriber equipment, and described information indication territory equipment for indicating user sends on D2D link, and receive after the DCI of the group RNTI scrambling receiving in being used to indicate D2D group communication, on D2D link, send; Receive the DCI of the group RNTI scrambling receiving in being used to indicate D2D group communication after, on D2D link, receive.
43. subscriber equipmenies as described in as arbitrary in claim 37～42, is characterized in that, described processing module specifically for:
In the public search space of PDCCH/EPDCCH and/or the definite exclusive search volume of PDCCH/EPDCCH of described subscriber equipment C-RNTI, receive DCI.
44. subscriber equipmenies described in claim 43, is characterized in that, the RNTI of described DCI scrambling is C-RNTI or a RNTI or the 2nd RNTI or the 3rd RNTI.
45. subscriber equipmenies as described in as arbitrary in claim 37～42, is characterized in that, described processing module specifically for:
In the public search space of PDCCH/EPDCCH, transmit the DCI that D2D link receives; And/or the subscriber equipment receiving in reception indication D2D communication in the exclusive search volume of the definite PDCCH/EPDCCH of the group RNTI of described subscriber equipment receives the DCI of data on D2D Link.
46. subscriber equipmenies described in claim 45, is characterized in that, the RNTI of described DCI scrambling is group RNTI.
The system of 47. 1 kinds of transfer of data, is characterized in that, this system comprises:
Network equipment, is used to user device configuration for the information indication territory of RNTI and/or the DCI of D2D communication; According to the information indication territory in described RNTI and/or DCI, on N2D Link, indicate the subscriber equipment communicating in D2D communication to communicate by letter on D2D Link;
Subscriber equipment, for receiving DCI, and the indication of the information in the RNTI of the DCI receiving according to scrambling and/or the DCI that receives territory, carry out D2D link communication.
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