CN104601300A - Data transmitting method and apparatus - Google Patents
Data transmitting method and apparatus Download PDFInfo
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- CN104601300A CN104601300A CN201310533385.3A CN201310533385A CN104601300A CN 104601300 A CN104601300 A CN 104601300A CN 201310533385 A CN201310533385 A CN 201310533385A CN 104601300 A CN104601300 A CN 104601300A
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- time division
- division duplex
- configuration
- downlink
- downgoing reference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1861—Physical mapping arrangements
Abstract
The present invention discloses a data transmitting method and apparatus. The method includes: transmitting cellular downlink data in a downlink subframe indicated by time division duplex uplink and downlink reference configuration, wherein the time division duplex uplink and downlink reference configuration is determined according to a cellular time division duplex uplink and downlink configuration and a D2D subframe configuration; and according to a HARQ feedback timing sequence of cellular downlink data based on the time division duplex uplink and downlink reference configuration, performing an ACK/NACK feedback of the cellular downlink data at an uplink subframe indicated by the time division duplex uplink and downlink reference configuration, wherein in the time division duplex uplink and downlink reference configuration, the subframe having the same serial number as the D2D sub-frame is not used for the ACK/NACK feedback of the cellular downlink data. The method prevents a problem of ACK/NACK feedback conflicts between the D2D linkage and PDSCH of the cellular linkage.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of data transmission method and equipment.
Background technology
Device-to-device (Device-to-Device, D2D), i.e. terminal direct connection technology, refer to that contiguous terminal can carry out the mode of transfer of data in short range by direct connected link, do not need to be forwarded by Centroid (i.e. base station).
In the research of D2D, the main scene considered has four kinds, and each scene can combine appearance, as shown in figs. la-ld.
Wherein, under the scene of Fig. 1 a, subscriber equipment 1(UE1) and subscriber equipment 2(UE2) all at the network coverage outer (Out of Coverage); Under the scene of Fig. 1 b, UE1 is (In Coverage) in the network coverage, and UE2 is outside the network coverage; Under the scene of Fig. 1 c, UE1 and UE2 is in the network coverage of same community; Under the scene of Fig. 1 d, UE1 and UE2 is in the network coverage of different districts.
In the communication of D2D, except the man-to-man communication mode between user, typical application scenarios also comprises between D2D user and carries out group/broadcast communication.
Having in network coverage situation, current third generation partner program (3GPP) standard has determined that D2D communication (comprising D2D discovery and D2D communication) is operated on the ascending resource of honeycomb, such as: in time division duplex (TDD) situation, be operated on sub-frame of uplink.Having in network coverage situation, a terminal with D2D communication capacity, likely there is D2D communication and cellular communication simultaneously, a kind of resource multiplex mode of D2D communication and cellular communication is that TDM is multiplexing.
In TDM is multiplexing, if the subframe that the D2D of a terminal (UE) links (D2D link) place is that it needs to feed back the Physical Downlink Shared Channel (PDSCH) of cellular link (cellular link) subframe at correctly confirmation/error check (ACK/NACK) information place, the conflict of the Physical Uplink Control Channel PUCCH of D2D link and cellular link can be caused like this.For TDD uplink-downlink configuration 1, as shown in Figure 2, subframe 8 in a radio frames is configured to D2D subframe, if be so that a D2D terminal scheduled the PDSCH sending cellular link in subframe 4, so its correspondence in subframe 8, need feeding back ACK/NACK, the transmission of PUCCH and the D2D link of cellular link can be caused to clash.
Summary of the invention
The object of this invention is to provide a kind of data transmission method and equipment, feed back the problem of conflicting to solve D2D link with the ACK/NACK of the PDSCH of cellular link.
The object of the invention is to be achieved through the following technical solutions:
A data transmission method for user equipment side, comprising:
The descending sub frame that subscriber equipment indicates in TDD up-downgoing reference configuration receives cellular downlink data, and this TDD up-downgoing reference configuration determines according to the TDD uplink-downlink configuration of honeycomb and D2D sub-frame configuration;
This subscriber equipment is according to hybrid automatic repeat-request (the Hybrid Automatic Repeat Request of the cellular downlink data based on above-mentioned TDD up-downgoing reference configuration, HARQ) sequential is fed back, carry out the ACK/NACK feedback of above-mentioned cellular downlink data at the sub-frame of uplink of this TDD up-downgoing reference configuration instruction, number the ACK/NACK that identical subframe is not used in these cellular downlink data in this TDD up-downgoing reference configuration, with D2D subframe and feed back.
The method that the embodiment of the present invention provides, subscriber equipment uses TDD up-downgoing reference configuration to carry out reception and the ACK/NACK feedback of cellular downlink data, the ACK/NACK being not used in these cellular downlink data owing to numbering identical subframe in TDD up-downgoing reference configuration with D2D subframe feeds back, and therefore avoids D2D link and feeds back the problem of conflicting with the ACK/NACK of the PDSCH of cellular link.
Preferably, above-mentioned TDD up-downgoing reference configuration can be that network equipment is issued by system broadcast message, can be the exclusive transmitting signaling downwards of network equipment by this subscriber equipment, can also determine according to the mode identical with network equipment by this subscriber equipment.
Preferably, determine above-mentioned TDD up-downgoing reference configuration mode but be not limited only to be:
Identical subframe is numbered as pseudo-descending sub frame using in the TDD uplink-downlink configuration of above-mentioned honeycomb, with D2D subframe;
If the TDD uplink-downlink configuration after change is the TDD uplink-downlink configuration i that standard specifies, i belongs to 0 ~ 6, then determine that TDD uplink-downlink configuration i is TDD up-downgoing reference configuration;
If the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, from the TDD uplink-downlink configuration that standard specifies, then select one as TDD up-downgoing reference configuration, numbering identical subframe in this TDD up-downgoing reference configuration, with D2D subframe is pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame, or, if the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, the TDD uplink-downlink configuration that then definition is different from the TDD uplink-downlink configuration that standard specifies is as TDD up-downgoing reference configuration, and definition is based on the HARQ feedback sequential of the cellular downlink data of this TDD up-downgoing reference configuration, in the TDD uplink-downlink configuration of definition, numbering identical subframe with D2D subframe is pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame.
In the embodiment of the present invention, pseudo-descending sub frame is not used in cellular downlink transmission.
Based on above-mentioned either method embodiment, preferably, D2D sub-frame configuration can be that network equipment is determined and issued by system broadcast message, also can be the exclusive transmitting signaling downwards of network equipment by subscriber equipment.
A data transmission method for network equipment side, comprising:
The descending sub frame that network equipment indicates in TDD up-downgoing reference configuration sends cellular downlink data, and this TDD up-downgoing reference configuration determines according to the TDD uplink-downlink configuration of honeycomb and D2D sub-frame configuration;
This network equipment is according to the HARQ feedback sequential of the cellular downlink data based on above-mentioned TDD up-downgoing reference configuration, receive the ACK/NACK feedback of above-mentioned cellular downlink data at the sub-frame of uplink of this TDD up-downgoing reference configuration instruction, number the ACK/NACK that identical subframe is not used in cellular downlink data in this TDD up-downgoing reference configuration, with D2D subframe and feed back.
The method that the embodiment of the present invention provides, network equipment uses TDD up-downgoing reference configuration to carry out the transmission of cellular downlink data and the reception of ACK/NACK feedback, the ACK/NACK being not used in these cellular downlink data owing to numbering identical subframe in TDD up-downgoing reference configuration with D2D subframe feeds back, and therefore avoids D2D link and feeds back the problem of conflicting with the ACK/NACK of the PDSCH of cellular link.
Preferably, above-mentioned TDD up-downgoing reference configuration can be determined by network equipment and send to subscriber equipment by system broadcast message, also can be determined by network equipment and send to this subscriber equipment by the exclusive signaling of subscriber equipment, can also be that network equipment is determined according to the mode identical with subscriber equipment.
Preferably, determine TDD up-downgoing reference configuration mode but be not limited only to be:
Identical subframe is numbered as pseudo-descending sub frame using in the TDD uplink-downlink configuration of above-mentioned honeycomb, with D2D subframe;
If the TDD uplink-downlink configuration after change is the TDD uplink-downlink configuration i that standard specifies, i belongs to 0 ~ 6, then determine that TDD uplink-downlink configuration i is TDD up-downgoing reference configuration;
If the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, from the TDD uplink-downlink configuration that standard specifies, then select one as TDD up-downgoing reference configuration, numbering identical subframe in this TDD up-downgoing reference configuration, with D2D subframe is pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame, or, if the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, the TDD uplink-downlink configuration that then definition is different from the TDD uplink-downlink configuration that standard specifies is as TDD up-downgoing reference configuration, and definition is based on the HARQ feedback sequential of the cellular downlink data of this TDD up-downgoing reference configuration, in the TDD uplink-downlink configuration of definition, numbering identical subframe with D2D subframe is pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame.
In the embodiment of the present invention, pseudo-descending sub frame is not used in cellular downlink transmission.
Based on above-mentioned arbitrary network equipment method embodiment, preferably, D2D sub-frame configuration can be that network equipment is determined and sends to subscriber equipment by system broadcast message, also can be that network equipment is determined and sends to subscriber equipment by the exclusive signaling of subscriber equipment.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of subscriber equipment, comprising:
Cellular data receiver module, receives cellular downlink data for the descending sub frame that indicates in TDD up-downgoing reference configuration, and described TDD up-downgoing reference configuration determines according to the TDD uplink-downlink configuration of honeycomb and device-to-device D2D sub-frame configuration;
Feedback information sending module, for the HARQ feedback sequential of basis based on the cellular downlink data of described TDD up-downgoing reference configuration, carry out the ACK/NACK feedback of described cellular downlink data at the sub-frame of uplink of described TDD up-downgoing reference configuration instruction, number the ACK/NACK that identical subframe is not used in described cellular downlink data in described TDD up-downgoing reference configuration, with D2D subframe and feed back.
The subscriber equipment that the embodiment of the present invention provides uses TDD up-downgoing reference configuration to carry out reception and the ACK/NACK feedback of cellular downlink data, the ACK/NACK being not used in these cellular downlink data owing to numbering identical subframe in TDD up-downgoing reference configuration with D2D subframe feeds back, and therefore avoids D2D link and feeds back the problem of conflicting with the ACK/NACK of the PDSCH of cellular link.
Preferably, above-mentioned TDD up-downgoing reference configuration can be that network equipment is issued by system broadcast message, can be the exclusive transmitting signaling downwards of network equipment by this subscriber equipment, can also determine according to the mode identical with network equipment by this subscriber equipment.
Preferably, determine above-mentioned TDD up-downgoing reference configuration mode but be not limited only to be:
Identical subframe is numbered as pseudo-descending sub frame using in the TDD uplink-downlink configuration of above-mentioned honeycomb, with D2D subframe;
If the TDD uplink-downlink configuration after change is the TDD uplink-downlink configuration i that standard specifies, i belongs to 0 ~ 6, then determine that TDD uplink-downlink configuration i is TDD up-downgoing reference configuration;
If the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, from the TDD uplink-downlink configuration that standard specifies, then select one as TDD up-downgoing reference configuration, numbering identical subframe in this TDD up-downgoing reference configuration, with D2D subframe is pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame, or, if the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, the TDD uplink-downlink configuration that then definition is different from the TDD uplink-downlink configuration that standard specifies is as TDD up-downgoing reference configuration, and definition is based on the HARQ feedback sequential of the cellular downlink data of this TDD up-downgoing reference configuration, in the TDD uplink-downlink configuration of definition, numbering identical subframe with D2D subframe is pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame.
In the embodiment of the present invention, pseudo-descending sub frame is not used in cellular downlink transmission.
Based on above-mentioned arbitrary subscriber equipment embodiment, preferably, D2D sub-frame configuration can be that network equipment is determined and issued by system broadcast message, also can be the exclusive transmitting signaling downwards of network equipment by subscriber equipment.
Based on the inventive concept same with method, the embodiment of the present invention also provides another kind of subscriber equipment, comprises processor.
Processor is configured to receive cellular downlink data at the descending sub frame of TDD up-downgoing reference configuration instruction, this TDD up-downgoing reference configuration determines according to the TDD uplink-downlink configuration of honeycomb and device-to-device D2D sub-frame configuration, according to the HARQ feedback sequential of the cellular downlink data based on this TDD up-downgoing reference configuration, the ACK/NACK feedback of described cellular downlink data is carried out at the sub-frame of uplink of described TDD up-downgoing reference configuration instruction, in described TDD up-downgoing reference configuration, number with D2D subframe the ACK/NACK that identical subframe is not used in described cellular downlink data to feed back.
The subscriber equipment that the embodiment of the present invention provides uses TDD up-downgoing reference configuration to carry out reception and the ACK/NACK feedback of cellular downlink data, the ACK/NACK being not used in these cellular downlink data owing to numbering identical subframe in TDD up-downgoing reference configuration with D2D subframe feeds back, and therefore avoids D2D link and feeds back the problem of conflicting with the ACK/NACK of the PDSCH of cellular link.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of network equipment, comprising:
Cellular data sending module, sends cellular downlink data for the descending sub frame that indicates in TDD up-downgoing reference configuration, and described TDD up-downgoing reference configuration determines according to the TDD uplink-downlink configuration of honeycomb and D2D sub-frame configuration;
Feedback information receiver module, for according to the HARQ feedback sequential based on the cellular downlink data of described TDD up-downgoing reference configuration, receives the ACK/NACK feedback of described cellular downlink data at the sub-frame of uplink of described TDD up-downgoing reference configuration instruction.
The network equipment that the embodiment of the present invention provides uses TDD up-downgoing reference configuration to carry out the transmission of cellular downlink data and the reception of ACK/NACK feedback, the ACK/NACK being not used in these cellular downlink data owing to numbering identical subframe in TDD up-downgoing reference configuration with D2D subframe feeds back, and therefore avoids D2D link and feeds back the problem of conflicting with the ACK/NACK of the PDSCH of cellular link.
Preferably, above-mentioned TDD up-downgoing reference configuration can be determined by network equipment and send to subscriber equipment by system broadcast message, also can be determined by network equipment and send to this subscriber equipment by the exclusive signaling of subscriber equipment, can also be that network equipment is determined according to the mode identical with subscriber equipment.
Preferably, determine TDD up-downgoing reference configuration mode but be not limited only to be:
Identical subframe is numbered as pseudo-descending sub frame using in the TDD uplink-downlink configuration of above-mentioned honeycomb, with D2D subframe;
If the TDD uplink-downlink configuration after change is the TDD uplink-downlink configuration i that standard specifies, i belongs to 0 ~ 6, then determine that TDD uplink-downlink configuration i is TDD up-downgoing reference configuration;
If the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, from the TDD uplink-downlink configuration that standard specifies, then select one as TDD up-downgoing reference configuration, numbering identical subframe in this TDD up-downgoing reference configuration, with D2D subframe is pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame, or, if the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, the TDD uplink-downlink configuration that then definition is different from the TDD uplink-downlink configuration that standard specifies is as TDD up-downgoing reference configuration, and definition is based on the HARQ feedback sequential of the cellular downlink data of this TDD up-downgoing reference configuration, in the TDD uplink-downlink configuration of definition, numbering identical subframe with D2D subframe is pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame.
In the embodiment of the present invention, pseudo-descending sub frame is not used in cellular downlink transmission.
Based on above-mentioned arbitrary network equipment embodiment, preferably, D2D sub-frame configuration can be that network equipment is determined and sends to subscriber equipment by system broadcast message, also can be that network equipment is determined and sends to subscriber equipment by the exclusive signaling of subscriber equipment.
Based on the inventive concept same with method, the embodiment of the present invention also provides another kind of network equipment, comprises processor.
Processor is configured to send cellular downlink data at the descending sub frame of TDD up-downgoing reference configuration instruction, described TDD up-downgoing reference configuration determines according to the TDD uplink-downlink configuration of honeycomb and D2D sub-frame configuration, for according to the HARQ feedback sequential based on the cellular downlink data of described TDD up-downgoing reference configuration, receive the ACK/NACK feedback of described cellular downlink data at the sub-frame of uplink of described TDD up-downgoing reference configuration instruction.
The network equipment that the embodiment of the present invention provides uses TDD up-downgoing reference configuration to carry out the transmission of cellular downlink data and the reception of ACK/NACK feedback, the ACK/NACK being not used in these cellular downlink data owing to numbering identical subframe in TDD up-downgoing reference configuration with D2D subframe feeds back, and therefore avoids D2D link and feeds back the problem of conflicting with the ACK/NACK of the PDSCH of cellular link.
Accompanying drawing explanation
Fig. 1 a ~ Fig. 1 d is D2D scene schematic diagram;
Fig. 2 is the transmission collision schematic diagram that PUCCH and the D2D of honeycomb is linked at same subframe;
The user equipment side method flow diagram that Fig. 3 provides for the embodiment of the present invention;
The network equipment side method flow diagram that Fig. 4 provides for the embodiment of the present invention;
A kind of schematic diagram determining TDD up-downgoing reference configuration that Fig. 5 provides for the embodiment of the present invention;
Fig. 6 determines the schematic diagram of TDD up-downgoing reference configuration for another kind that the embodiment of the present invention provides;
The subscriber equipment schematic diagram that Fig. 7 provides for the embodiment of the present invention;
The network equipment schematic diagram that Fig. 8 provides for the embodiment of the present invention.
Embodiment
How to solve D2D link and feed back the problem of conflicting with the ACK/NACK of the PDSCH of cellular link, the consideration that current mechanism is not correlated with.The mode avoided conflict intuitively has several as follows:
Mode one, to be avoided by scheduling, such as, do not dispatch the transmission of D2D UE at the Physical Downlink Shared Channel (PDSCH) of subframe n-k.The problem caused like this is that the transmission of honeycomb can be restricted, especially in a tdd system, because ascending-descending subframes shares a radio frames, and a sub-frame of uplink needs the ACK/NACK of the PDSCH carried in multiple descending sub frame to feed back in some TDD uplink-downlink configuration, so by avoiding the transmission of the PDSCH dispatching the descending sub frame corresponding with this sub-frame of uplink, larger impact can be caused on the transmission of the PDSCH of the honeycomb of the D2D UE of TDD system.
If mode two clashes, then abandon the PUCCH feedback of cellular link, can impact the transmission of honeycomb equally.
If mode three clashes, then abandon the transmission of D2D link, can impact the transmission of D2D link like this.
Adopt the combination of aforesaid way, such as scheduling avoids, with the combination of the transmission two kinds of modes abandoning D2D link, also there is same problem.
The embodiment of the present invention provides a kind of data transmission method and equipment.Subscriber equipment and network equipment use TDD up-downgoing reference configuration to carry out transmission and the ACK/NACK feedback of cellular downlink data, the ACK/NACK being not used in these cellular downlink data owing to numbering identical subframe in TDD up-downgoing reference configuration with D2D subframe feeds back, and therefore avoids D2D link and feeds back the problem of conflicting with the ACK/NACK of the PDSCH of cellular link.In addition, than the above-mentioned method avoided conflict mentioned, the solution that the embodiment of the present invention provides improves resource utilization.Below in conjunction with accompanying drawing, from user equipment side and network equipment side, the method and apparatus that the embodiment of the present invention provides is described in detail respectively.
Figure 3 shows that the data transmission method of a kind of user equipment side that the embodiment of the present invention provides, specifically comprise following operation:
The descending sub frame that step 300, subscriber equipment indicate in TDD up-downgoing reference configuration receives cellular downlink data, and this TDD up-downgoing reference configuration determines according to the TDD uplink-downlink configuration of honeycomb and D2D sub-frame configuration.
In the embodiment of the present invention, subscriber equipment refers to the D2D UE in the network coverage.
In the embodiment of the present invention, cellular downlink data refer to the downlink data of cellular link, such as, by the data of PDSCH transmission.
In the embodiment of the present invention, the TDD uplink-downlink configuration of honeycomb refers to the TDD uplink-downlink configuration that the cellular network that subscriber equipment accesses uses.
Step 310, this subscriber equipment are according to the HARQ feedback sequential of the cellular downlink data based on above-mentioned TDD up-downgoing reference configuration, carry out the ACK/NACK feedback of above-mentioned cellular downlink data at the sub-frame of uplink of this TDD up-downgoing reference configuration instruction, number the ACK/NACK that identical subframe is not used in these cellular downlink data in this TDD up-downgoing reference configuration, with D2D subframe and feed back.
In the embodiment of the present invention, as mentioned above, TDD up-downgoing reference configuration determines according to the TDD uplink-downlink configuration of honeycomb and D2D sub-frame configuration.In TDD up-downgoing reference configuration, numbering identical subframe with D2D subframe, and number identical but that transmission direction is contrary descending sub frame with the subframe of the TDD uplink-downlink configuration of honeycomb, is pseudo-descending sub frame.
Preferably, above-mentioned TDD up-downgoing reference configuration can be that network equipment is issued by system broadcast message, can be the exclusive transmitting signaling downwards of network equipment by this subscriber equipment, can also determine according to the mode identical with network equipment by this subscriber equipment.
Wherein, if TDD up-downgoing reference configuration is the exclusive transmitting signaling downwards of network equipment by subscriber equipment, specifically can by TDD up-downgoing reference configuration by radio resource control (RadioResourceControl, RRC) transmission of messages, also can by TDD up-downgoing reference configuration by media into control channel unit (MAC CE) information transmission.To the subscriber equipment being in RRC connected state, preferably, TDD up-downgoing reference configuration is transmitted by RRC information.
Preferably, determine above-mentioned TDD up-downgoing reference configuration mode but be not limited only to be:
Identical subframe is numbered as pseudo-descending sub frame using in the TDD uplink-downlink configuration of above-mentioned honeycomb, with D2D subframe;
If the TDD uplink-downlink configuration after change is the TDD uplink-downlink configuration i that standard specifies, i belongs to 0 ~ 6, then determine that TDD uplink-downlink configuration i is TDD up-downgoing reference configuration;
If the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, the following two kinds processing mode can be had:
One, select from the TDD uplink-downlink configuration that standard specifies one with change after the most close TDD uplink-downlink configuration of TDD uplink-downlink configuration as TDD up-downgoing reference configuration, numbering identical subframe in this TDD up-downgoing reference configuration, with D2D subframe is pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame.
The TDD uplink-downlink configuration that two, definition is different from the TDD uplink-downlink configuration that standard specifies is as TDD up-downgoing reference configuration, and definition is based on the HARQ feedback sequential of the cellular downlink data of this TDD up-downgoing reference configuration, in the TDD uplink-downlink configuration of definition, to number identical subframe with D2D subframe be pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame.
In the embodiment of the present invention, pseudo-descending sub frame represents this subframe in fact for the operation of D2D link, is not used in cellular downlink transmission (comprising the downstream signal such as downlink data, reference signal detection).
If the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, the TDD ascending-descending subframes determined for avoiding subscriber equipment and network equipment configures different, preferably, determined in the manner described above by network equipment and send to subscriber equipment by the exclusive signaling of system broadcast message or subscriber equipment.
In the embodiment of the present invention, the one in the TDD uplink-downlink configuration that if the TDD up-downgoing reference configuration determined is standard to be specified, be then exactly HARQ feedback sequential corresponding to the TDD uplink-downlink configuration that specifies of standard based on the HARQ feedback sequential of the cellular downlink data of TDD up-downgoing reference configuration in above-mentioned steps 310.The HARQ feedback sequential that each TDD uplink-downlink configuration of standard regulation is corresponding can see table 1.
The value of k in table 1:TDD uplink-downlink configuration
Wherein, what sub-frame of uplink n needed feedback is the ACK/NACK information that the PDSCH that transmits in n-k subframe is corresponding.In a tdd system, k is a set, namely shown in table 1.
Based on above-mentioned arbitrary user equipment method embodiment, preferably, D2D sub-frame configuration can be that network equipment is determined and issued by system broadcast message, also can be the exclusive transmitting signaling downwards of network equipment by subscriber equipment.
If D2D sub-frame configuration is the exclusive transmitting signaling downwards of network equipment by subscriber equipment.Concrete, D2D sub-frame configuration can be transmitted by RRC information, also can pass through MAC CE information transmission D2D sub-frame configuration.If subscriber equipment is in RRC connected state, preferably, by RRC information transmission D2D sub-frame configuration.
In the embodiment of the present invention, in D2D sub-frame configuration, at least comprise following information: the cycle (such as 5ms, 10ms, 20ms etc.) of D2D subframe, the numbering of D2D subframe or sub-frame offset.Specifically can indicate D2D sub-frame configuration by the mode of pattern.
Be illustrated in figure 4 the data transmission method of a kind of network equipment side that the embodiment of the present invention provides, specifically comprise following operation:
The descending sub frame that step 400, network equipment indicate in TDD up-downgoing reference configuration sends cellular downlink data, and this TDD up-downgoing reference configuration determines according to the TDD uplink-downlink configuration of honeycomb and D2D sub-frame configuration.
Step 410, this network equipment are according to the HARQ feedback sequential of the cellular downlink data based on above-mentioned TDD up-downgoing reference configuration, receive the ACK/NACK feedback of above-mentioned cellular downlink data at the sub-frame of uplink of this TDD up-downgoing reference configuration instruction, number the ACK/NACK that identical subframe is not used in cellular downlink data in this TDD up-downgoing reference configuration, with D2D subframe and feed back.
Preferably, above-mentioned TDD up-downgoing reference configuration can be determined by network equipment and send to subscriber equipment by system broadcast message, also can be determined by network equipment and send to this subscriber equipment by the exclusive signaling of subscriber equipment, can also be that network equipment is determined according to the mode identical with subscriber equipment.
Preferably, determine TDD up-downgoing reference configuration mode but be not limited only to be:
Identical subframe is numbered as pseudo-descending sub frame using in the TDD uplink-downlink configuration of above-mentioned honeycomb, with D2D subframe;
If the TDD uplink-downlink configuration after change is the TDD uplink-downlink configuration i that standard specifies, i belongs to 0 ~ 6, then determine that TDD uplink-downlink configuration i is TDD up-downgoing reference configuration;
If the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, from the TDD uplink-downlink configuration that standard specifies, then select one as TDD up-downgoing reference configuration, numbering identical subframe in this TDD up-downgoing reference configuration, with D2D subframe is pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame, or, if the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, the TDD uplink-downlink configuration that then definition is different from the TDD uplink-downlink configuration that standard specifies is as TDD up-downgoing reference configuration, and definition is based on the HARQ feedback sequential of the cellular downlink data of this TDD up-downgoing reference configuration, in the TDD uplink-downlink configuration of definition, numbering identical subframe with D2D subframe is pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame.
In the embodiment of the present invention, pseudo-descending sub frame is not used in cellular downlink transmission.
Based on above-mentioned arbitrary network equipment method embodiment, preferably, D2D sub-frame configuration can be that network equipment is determined and sends to subscriber equipment by system broadcast message, also can be that network equipment is determined and sends to subscriber equipment by the exclusive signaling of subscriber equipment.
In network equipment embodiment of the present invention, with reference to the description of user equipment side embodiment of the method, can repeat no more here with the specific descriptions of the same or similar technical characteristic of user equipment side.
As shown in Figure 5, be that 1, D2D sub-frame configuration 10ms cycle, subframe 3 and subframe 8 are for D2D subframe is for example with the TDD uplink-downlink configuration of honeycomb.According to the TDD uplink-downlink configuration 1 of honeycomb and the configuration of D2D subframe, using the subframe 3 in the TDD uplink-downlink configuration 1 of honeycomb and subframe 8 as pseudo-descending sub frame (pseudo-DL subframe).TDD uplink-downlink configuration after change is TDD uplink-downlink configuration 2, then determine that TDD uplink-downlink configuration 2 is for TDD up-downgoing reference configuration.For the PDSCH of transmission in subframe 4, according to the HARQ feedback sequential of original TDD uplink-downlink configuration 1 correspondence, need at subframe 8 feeding back ACKs/nack message, the conflict of potential PUCCH and D2D link can occur.
Adopt the technical scheme that the embodiment of the present invention provides, network equipment, according to TDD up-downgoing reference configuration (i.e. TDD uplink-downlink configuration 2), subframe 4 sends PDSCH; Subscriber equipment, according to TDD up-downgoing reference configuration, subframe 4 receives PDSCH; For equipment according to HARQ feedback sequential corresponding to TDD up-downgoing reference configuration, carry out ACK/NACK feedback in the subframe 2 of the next radio frames of TDD up-downgoing reference configuration instruction; Network equipment, according to HARQ feedback sequential corresponding to TDD up-downgoing reference configuration, receives AKC/NACK feedback in the subframe 2 of the next radio frames of TDD up-downgoing reference configuration instruction, doing so avoids the conflict of potential PUCCH and D2D link.
As shown in Figure 6, be that 1, D2D sub-frame configuration 10ms cycle, subframe 8 are for D2D subframe is for example with the TDD uplink-downlink configuration of honeycomb.According to the TDD uplink-downlink configuration of honeycomb and the configuration of D2D subframe, using the subframe 8 in the TDD uplink-downlink configuration 1 of honeycomb as pseudo-descending sub frame.TDD uplink-downlink configuration after change is all different from TDD uplink-downlink configuration 0 ~ 6.Can using TDD uplink-downlink configuration 2 as TDD up-downgoing reference configuration, in this TDD up-downgoing reference configuration, subframe 3 is contrary with the transmission direction of TDD uplink-downlink configuration, also as pseudo-descending sub frame.For the PDSCH of transmission in subframe 4, according to the HARQ feedback sequential of original TDD uplink-downlink configuration 1 correspondence, need at subframe 8 feeding back ACKs/nack message, the conflict of potential PUCCH and D2D link can occur.
Adopt the technical scheme that the embodiment of the present invention provides, network equipment, according to TDD up-downgoing reference configuration (i.e. TDD uplink-downlink configuration 2), subframe 4 sends PDSCH; Subscriber equipment, according to TDD up-downgoing reference configuration, subframe 4 receives PDSCH; For equipment according to HARQ feedback sequential corresponding to TDD up-downgoing reference configuration, carry out ACK/NACK feedback in the subframe 2 of the next radio frames of TDD up-downgoing reference configuration instruction; Network equipment, according to HARQ feedback sequential corresponding to TDD up-downgoing reference configuration, receives AKC/NACK feedback in the subframe 2 of the next radio frames of TDD up-downgoing reference configuration instruction, doing so avoids the conflict of potential PUCCH and D2D link.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of subscriber equipment, as shown in Figure 7, comprising:
Cellular data receiver module 701, receives cellular downlink data for the descending sub frame that indicates in TDD up-downgoing reference configuration, and described TDD up-downgoing reference configuration determines according to the TDD uplink-downlink configuration of honeycomb and device-to-device D2D sub-frame configuration;
Feedback information sending module 702, for the HARQ feedback sequential of basis based on the cellular downlink data of described TDD up-downgoing reference configuration, carry out the ACK/NACK feedback of described cellular downlink data at the sub-frame of uplink of described TDD up-downgoing reference configuration instruction, number the ACK/NACK that identical subframe is not used in described cellular downlink data in described TDD up-downgoing reference configuration, with D2D subframe and feed back.
The subscriber equipment that the embodiment of the present invention provides uses TDD up-downgoing reference configuration to carry out reception and the ACK/NACK feedback of cellular downlink data, the ACK/NACK being not used in these cellular downlink data owing to numbering identical subframe in TDD up-downgoing reference configuration with D2D subframe feeds back, and therefore avoids D2D link and feeds back the problem of conflicting with the ACK/NACK of the PDSCH of cellular link.
Preferably, above-mentioned TDD up-downgoing reference configuration can be that network equipment is issued by system broadcast message, can be the exclusive transmitting signaling downwards of network equipment by this subscriber equipment, can also determine according to the mode identical with network equipment by this subscriber equipment.
Preferably, determine above-mentioned TDD up-downgoing reference configuration mode but be not limited only to be:
Identical subframe is numbered as pseudo-descending sub frame using in the TDD uplink-downlink configuration of above-mentioned honeycomb, with D2D subframe;
If the TDD uplink-downlink configuration after change is the TDD uplink-downlink configuration i that standard specifies, i belongs to 0 ~ 6, then determine that TDD uplink-downlink configuration i is TDD up-downgoing reference configuration;
If the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, from the TDD uplink-downlink configuration that standard specifies, then select one as TDD up-downgoing reference configuration, numbering identical subframe in this TDD up-downgoing reference configuration, with D2D subframe is pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame, or, if the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, the TDD uplink-downlink configuration that then definition is different from the TDD uplink-downlink configuration that standard specifies is as TDD up-downgoing reference configuration, and definition is based on the HARQ feedback sequential of the cellular downlink data of this TDD up-downgoing reference configuration, in the TDD uplink-downlink configuration of definition, numbering identical subframe with D2D subframe is pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame.
In the embodiment of the present invention, pseudo-descending sub frame is not used in cellular downlink transmission.
Based on above-mentioned arbitrary subscriber equipment embodiment, preferably, D2D sub-frame configuration can be that network equipment is determined and issued by system broadcast message, also can be the exclusive transmitting signaling downwards of network equipment by subscriber equipment.
Based on the inventive concept same with method, the embodiment of the present invention also provides another kind of subscriber equipment, comprises processor.
Processor is configured to receive cellular downlink data at the descending sub frame of TDD up-downgoing reference configuration instruction, this TDD up-downgoing reference configuration determines according to the TDD uplink-downlink configuration of honeycomb and device-to-device D2D sub-frame configuration, according to the HARQ feedback sequential of the cellular downlink data based on this TDD up-downgoing reference configuration, the ACK/NACK feedback of described cellular downlink data is carried out at the sub-frame of uplink of described TDD up-downgoing reference configuration instruction, in described TDD up-downgoing reference configuration, number with D2D subframe the ACK/NACK that identical subframe is not used in described cellular downlink data to feed back.
The subscriber equipment that the embodiment of the present invention provides uses TDD up-downgoing reference configuration to carry out reception and the ACK/NACK feedback of cellular downlink data, the ACK/NACK being not used in these cellular downlink data owing to numbering identical subframe in TDD up-downgoing reference configuration with D2D subframe feeds back, and therefore avoids D2D link and feeds back the problem of conflicting with the ACK/NACK of the PDSCH of cellular link.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of network equipment, as shown in Figure 8, comprising:
Cellular data sending module 801, sends cellular downlink data for the descending sub frame that indicates in TDD up-downgoing reference configuration, and described TDD up-downgoing reference configuration determines according to the TDD uplink-downlink configuration of honeycomb and D2D sub-frame configuration;
Feedback information receiver module 802, for according to the HARQ feedback sequential based on the cellular downlink data of described TDD up-downgoing reference configuration, receives the ACK/NACK feedback of described cellular downlink data at the sub-frame of uplink of described TDD up-downgoing reference configuration instruction.
The network equipment that the embodiment of the present invention provides uses TDD up-downgoing reference configuration to carry out the transmission of cellular downlink data and the reception of ACK/NACK feedback, the ACK/NACK being not used in these cellular downlink data owing to numbering identical subframe in TDD up-downgoing reference configuration with D2D subframe feeds back, and therefore avoids D2D link and feeds back the problem of conflicting with the ACK/NACK of the PDSCH of cellular link.
Preferably, above-mentioned TDD up-downgoing reference configuration can be determined by network equipment and send to subscriber equipment by system broadcast message, also can be determined by network equipment and send to this subscriber equipment by the exclusive signaling of subscriber equipment, can also be that network equipment is determined according to the mode identical with subscriber equipment.
Preferably, determine TDD up-downgoing reference configuration mode but be not limited only to be:
Identical subframe is numbered as pseudo-descending sub frame using in the TDD uplink-downlink configuration of above-mentioned honeycomb, with D2D subframe;
If the TDD uplink-downlink configuration after change is the TDD uplink-downlink configuration i that standard specifies, i belongs to 0 ~ 6, then determine that TDD uplink-downlink configuration i is TDD up-downgoing reference configuration;
If the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, from the TDD uplink-downlink configuration that standard specifies, then select one as TDD up-downgoing reference configuration, numbering identical subframe in this TDD up-downgoing reference configuration, with D2D subframe is pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame, or, if the TDD uplink-downlink configuration after change is all different from the TDD uplink-downlink configuration that standard specifies, the TDD uplink-downlink configuration that then definition is different from the TDD uplink-downlink configuration that standard specifies is as TDD up-downgoing reference configuration, and definition is based on the HARQ feedback sequential of the cellular downlink data of this TDD up-downgoing reference configuration, in the TDD uplink-downlink configuration of definition, numbering identical subframe with D2D subframe is pseudo-descending sub frame, and in this TDD up-downgoing reference configuration, number identical with the subframe in the TDD uplink-downlink configuration of honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame.
In the embodiment of the present invention, pseudo-descending sub frame is not used in cellular downlink transmission.
Based on above-mentioned arbitrary network equipment embodiment, preferably, D2D sub-frame configuration can be that network equipment is determined and sends to subscriber equipment by system broadcast message, also can be that network equipment is determined and sends to subscriber equipment by the exclusive signaling of subscriber equipment.
Based on the inventive concept same with method, the embodiment of the present invention also provides another kind of network equipment, comprises processor.
Processor is configured to send cellular downlink data at the descending sub frame of TDD up-downgoing reference configuration instruction, described TDD up-downgoing reference configuration determines according to the TDD uplink-downlink configuration of honeycomb and D2D sub-frame configuration, for according to the HARQ feedback sequential based on the cellular downlink data of described TDD up-downgoing reference configuration, receive the ACK/NACK feedback of described cellular downlink data at the sub-frame of uplink of described TDD up-downgoing reference configuration instruction.
The network equipment that the embodiment of the present invention provides uses TDD up-downgoing reference configuration to carry out the transmission of cellular downlink data and the reception of ACK/NACK feedback, the ACK/NACK being not used in these cellular downlink data owing to numbering identical subframe in TDD up-downgoing reference configuration with D2D subframe feeds back, and therefore avoids D2D link and feeds back the problem of conflicting with the ACK/NACK of the PDSCH of cellular link.
In the embodiment of the present invention, the network equipment can be evolved node (eNB), node (NB), relaying etc.
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 the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (16)
1. a data transmission method, is characterized in that, comprising:
The descending sub frame that subscriber equipment indicates in time division duplex up-downgoing reference configuration receives cellular downlink data, and described time division duplex up-downgoing reference configuration determines according to the time division duplex uplink-downlink configuration of honeycomb and device-to-device D2D sub-frame configuration;
Described subscriber equipment is according to the hybrid automatic repeat-request HARQ feedback sequential of the cellular downlink data based on described time division duplex up-downgoing reference configuration, correct confirmation/error check the ACK/NACK carrying out described cellular downlink data at the sub-frame of uplink of described time division duplex up-downgoing reference configuration instruction feeds back, and numbers the ACK/NACK that identical subframe is not used in described cellular downlink data and feed back in described time division duplex up-downgoing reference configuration, with D2D subframe.
2. method according to claim 1, is characterized in that, described time division duplex up-downgoing reference configuration is that network equipment is issued by system broadcast message; Or,
Described time division duplex up-downgoing reference configuration is the exclusive transmitting signaling downwards of network equipment by described subscriber equipment; Or,
Described time division duplex up-downgoing reference configuration is that described subscriber equipment is determined according to the mode identical with network equipment.
3. method according to claim 1, is characterized in that, determines that the mode of described time division duplex up-downgoing reference configuration comprises:
Number identical subframe as pseudo-descending sub frame using in the time division duplex uplink-downlink configuration of described honeycomb, with D2D subframe, pseudo-descending sub frame is not used in cellular downlink transmission;
If the time division duplex uplink-downlink configuration after change is the time division duplex uplink-downlink configuration i that standard specifies, i belongs to 0 ~ 6, then determine that time division duplex uplink-downlink configuration i is described time division duplex up-downgoing reference configuration;
If the time division duplex uplink-downlink configuration after change is all different from the time division duplex uplink-downlink configuration that standard specifies, from the time division duplex uplink-downlink configuration that standard specifies, then select one as described time division duplex up-downgoing reference configuration, numbering identical subframe in described time division duplex up-downgoing reference configuration, with D2D subframe is pseudo-descending sub frame, and in described time division duplex up-downgoing reference configuration, number identical with the subframe in the time division duplex uplink-downlink configuration of described honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame, or, if the time division duplex uplink-downlink configuration after change is all different from the time division duplex uplink-downlink configuration that standard specifies, the time division duplex uplink-downlink configuration that then definition is different from the time division duplex uplink-downlink configuration that standard specifies is as described time division duplex up-downgoing reference configuration, and definition is based on the HARQ feedback sequential of the cellular downlink data of described time division duplex up-downgoing reference configuration, in the time division duplex uplink-downlink configuration of definition, numbering identical subframe with D2D subframe is pseudo-descending sub frame, and in described time division duplex up-downgoing reference configuration, number identical with the subframe in the time division duplex uplink-downlink configuration of described honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame.
4. the method according to any one of claims 1 to 3, is characterized in that, described D2D sub-frame configuration is that network equipment is issued by system broadcast message; Or,
Described D2D sub-frame configuration is the exclusive transmitting signaling downwards of network equipment by described subscriber equipment.
5. a data transmission method, is characterized in that, comprising:
The descending sub frame that network equipment indicates in time division duplex up-downgoing reference configuration sends cellular downlink data, and described time division duplex up-downgoing reference configuration determines according to the time division duplex uplink-downlink configuration of honeycomb and D2D sub-frame configuration;
Described network equipment is according to the HARQ feedback sequential of the cellular downlink data based on described time division duplex up-downgoing reference configuration, receive the ACK/NACK feedback of described cellular downlink data at the sub-frame of uplink of described time division duplex up-downgoing reference configuration instruction, number the ACK/NACK that identical subframe is not used in described cellular downlink data in described time division duplex up-downgoing reference configuration, with D2D subframe and feed back.
6. method according to claim 5, is characterized in that, described time division duplex up-downgoing reference configuration is determined by described network equipment and sends to subscriber equipment by system broadcast message; Or,
Described time division duplex up-downgoing reference configuration is determined by described network equipment and sends to described subscriber equipment by the exclusive signaling of subscriber equipment; Or,
Described time division duplex up-downgoing reference configuration is that described network equipment is determined according to the mode identical with subscriber equipment.
7. method according to claim 5, is characterized in that, determines that the mode of described time division duplex up-downgoing reference configuration comprises:
Number identical subframe as pseudo-descending sub frame using in the time division duplex uplink-downlink configuration of described honeycomb, with D2D subframe, pseudo-descending sub frame is not used in cellular downlink transmission;
If the time division duplex uplink-downlink configuration after change is the time division duplex uplink-downlink configuration i that standard specifies, i belongs to 0 ~ 6, then determine that time division duplex uplink-downlink configuration i is described time division duplex up-downgoing reference configuration;
If the time division duplex uplink-downlink configuration after change is all different from the time division duplex uplink-downlink configuration that standard specifies, from the time division duplex uplink-downlink configuration that standard specifies, then select one as described time division duplex up-downgoing reference configuration, numbering identical subframe in described time division duplex up-downgoing reference configuration, with D2D subframe is pseudo-descending sub frame, and in described time division duplex up-downgoing reference configuration, number identical with the subframe in the time division duplex uplink-downlink configuration of described honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame, or, if the time division duplex uplink-downlink configuration after change is all different from the time division duplex uplink-downlink configuration that standard specifies, the time division duplex uplink-downlink configuration that then definition is different from the time division duplex uplink-downlink configuration that standard specifies is as described time division duplex up-downgoing reference configuration, and definition is based on the HARQ feedback sequential of the cellular downlink data of described time division duplex up-downgoing reference configuration, in the time division duplex uplink-downlink configuration of definition, numbering identical subframe with D2D subframe is pseudo-descending sub frame, and in described time division duplex up-downgoing reference configuration, number identical with the subframe in the time division duplex uplink-downlink configuration of described honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame.
8. the method according to any one of claim 5 ~ 7, is characterized in that, described D2D sub-frame configuration is determined by network equipment and sent to described subscriber equipment by system broadcast message; Or,
Described D2D sub-frame configuration is determined by network equipment and sends to described subscriber equipment by the exclusive signaling of described subscriber equipment.
9. a subscriber equipment, is characterized in that, comprising:
Cellular data receiver module, receives cellular downlink data for the descending sub frame that indicates in time division duplex up-downgoing reference configuration, and described time division duplex up-downgoing reference configuration determines according to the time division duplex uplink-downlink configuration of honeycomb and D2D sub-frame configuration;
Feedback information sending module, for the HARQ feedback sequential of basis based on the cellular downlink data of described time division duplex up-downgoing reference configuration, carry out the ACK/NACK feedback of described cellular downlink data at the sub-frame of uplink of described time division duplex up-downgoing reference configuration instruction, number the ACK/NACK that identical subframe is not used in described cellular downlink data in described time division duplex up-downgoing reference configuration, with D2D subframe and feed back.
10. subscriber equipment according to claim 9, is characterized in that, described time division duplex up-downgoing reference configuration is that network equipment is issued by system broadcast message; Or,
Described time division duplex up-downgoing reference configuration is the exclusive transmitting signaling downwards of network equipment by described subscriber equipment; Or,
Described time division duplex up-downgoing reference configuration is that described subscriber equipment is determined according to the mode identical with network equipment.
11. subscriber equipmenies according to claim 9, is characterized in that, determine that the mode of described time division duplex up-downgoing reference configuration comprises:
Number identical subframe as pseudo-descending sub frame using in the time division duplex uplink-downlink configuration of described honeycomb, with D2D subframe, pseudo-descending sub frame is not used in cellular downlink transmission;
If the time division duplex uplink-downlink configuration after change is the time division duplex uplink-downlink configuration i that standard specifies, i belongs to 0 ~ 6, then determine that time division duplex uplink-downlink configuration i is described time division duplex up-downgoing reference configuration;
If the time division duplex uplink-downlink configuration after change is all different from the time division duplex uplink-downlink configuration that standard specifies, from the time division duplex uplink-downlink configuration that standard specifies, then select one as described time division duplex up-downgoing reference configuration, numbering identical subframe in described time division duplex up-downgoing reference configuration, with D2D subframe is pseudo-descending sub frame, and in described time division duplex up-downgoing reference configuration, number identical with the subframe in the time division duplex uplink-downlink configuration of described honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame, or, if the time division duplex uplink-downlink configuration after change is all different from the time division duplex uplink-downlink configuration that standard specifies, the time division duplex uplink-downlink configuration that then definition is different from the time division duplex uplink-downlink configuration that standard specifies is as described time division duplex up-downgoing reference configuration, and definition is based on the HARQ feedback sequential of the cellular downlink data of described time division duplex up-downgoing reference configuration, in the time division duplex uplink-downlink configuration of definition, numbering identical subframe with D2D subframe is pseudo-descending sub frame, and in described time division duplex up-downgoing reference configuration, number identical with the subframe in the time division duplex uplink-downlink configuration of described honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame.
12. subscriber equipmenies according to any one of claim 9 ~ 11, it is characterized in that, described D2D sub-frame configuration is that network equipment is issued by system broadcast message; Or,
Described D2D sub-frame configuration is the exclusive transmitting signaling downwards of network equipment by described subscriber equipment.
13. 1 kinds of network equipments, is characterized in that, comprising:
Cellular data sending module, sends cellular downlink data for the descending sub frame that indicates in time division duplex up-downgoing reference configuration, and described time division duplex up-downgoing reference configuration determines according to the time division duplex uplink-downlink configuration of honeycomb and D2D sub-frame configuration;
Feedback information receiver module, for according to the HARQ feedback sequential based on the cellular downlink data of described time division duplex up-downgoing reference configuration, receive the ACK/NACK feedback of described cellular downlink data at the sub-frame of uplink of described time division duplex up-downgoing reference configuration instruction.
14. network equipments according to claim 13, is characterized in that, described time division duplex up-downgoing reference configuration is determined by described network equipment and sends to subscriber equipment by system broadcast message; Or,
Described time division duplex up-downgoing reference configuration is determined by described network equipment and sends to described subscriber equipment by the exclusive signaling of subscriber equipment; Or,
Described time division duplex up-downgoing reference configuration is that described network equipment is determined according to the mode identical with subscriber equipment.
15. network equipments according to claim 13, is characterized in that, determine that the mode of described time division duplex up-downgoing reference configuration comprises:
Number identical subframe as pseudo-descending sub frame using in the time division duplex uplink-downlink configuration of described honeycomb, with D2D subframe, pseudo-descending sub frame is not used in cellular downlink transmission;
If the time division duplex uplink-downlink configuration after change is the time division duplex uplink-downlink configuration i that standard specifies, i belongs to 0 ~ 6, then determine that time division duplex uplink-downlink configuration i is described time division duplex up-downgoing reference configuration;
If the time division duplex uplink-downlink configuration after change is all different from the time division duplex uplink-downlink configuration that standard specifies, from the time division duplex uplink-downlink configuration that standard specifies, then select one as described time division duplex up-downgoing reference configuration, numbering identical subframe in described time division duplex up-downgoing reference configuration, with D2D subframe is pseudo-descending sub frame, and in described time division duplex up-downgoing reference configuration, number identical with the subframe in the time division duplex uplink-downlink configuration of described honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame, or, if the time division duplex uplink-downlink configuration after change is all different from the time division duplex uplink-downlink configuration that standard specifies, the time division duplex uplink-downlink configuration that then definition is different from the time division duplex uplink-downlink configuration that standard specifies is as described time division duplex up-downgoing reference configuration, and definition is based on the HARQ feedback sequential of the cellular downlink data of described time division duplex up-downgoing reference configuration, in the time division duplex uplink-downlink configuration of definition, numbering identical subframe with D2D subframe is pseudo-descending sub frame, and in described time division duplex up-downgoing reference configuration, number identical with the subframe in the time division duplex uplink-downlink configuration of described honeycomb but the descending sub frame that transmission direction is contrary is pseudo-descending sub frame.
16. network equipments according to any one of claim 13 ~ 15, it is characterized in that, described D2D sub-frame configuration is determined by network equipment and is sent to described subscriber equipment by system broadcast message; Or,
Described D2D sub-frame configuration is determined by network equipment and sends to described subscriber equipment by the exclusive signaling of described subscriber equipment.
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| PCT/CN2014/089691 WO2015062477A1 (en) | 2013-10-31 | 2014-10-28 | Data transmission method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017120803A1 (en) * | 2016-01-13 | 2017-07-20 | Lenovo Innovations Limited (Hong Kong) | Bidirectional subframe communication |
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| WO2015062477A1 (en) | 2015-05-07 |
| CN104601300B (en) | 2018-03-16 |
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