CN104219023B - Communication means and device in a kind of D2D system - Google Patents
Communication means and device in a kind of D2D system Download PDFInfo
- Publication number
- CN104219023B CN104219023B CN201310216218.6A CN201310216218A CN104219023B CN 104219023 B CN104219023 B CN 104219023B CN 201310216218 A CN201310216218 A CN 201310216218A CN 104219023 B CN104219023 B CN 104219023B
- Authority
- CN
- China
- Prior art keywords
- subframe
- information
- block
- symbol
- timing adjustment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention proposes a kind of methods communicated in D2D system.In one embodiment, this method comprises: UE receives data in the partial symbols of a subframe, remaining in the subframe meets transmission feedback.By using technical solution provided in the present invention, solve the problems, such as that, since efficiency of transmission caused by feeding back reduces in D2D system, furthermore timely sending feedback reduces the memory spending of UE.
Description
Technical field
The present invention relates to devices to the scheme of mobile communication transmission in device (D2D-Device to Device) system, special
It is not to be related to the D2D mobile communication transmission scheme based on long term evolution (LTE-Long Term Evolution) framework.
Background technique
Traditional third generation cooperative partner program (3GPP-3rd Generat ion Partner Project) is drilled for a long time
Into in (LTE-Long Term Evolution) system, two kinds of frame structures, i.e. frequency division duplex (FDD-Frequency are defined
Division Duplex) frame structure 1 of system and the frame structure of time division duplex (TDD-Time Division Duplex) system
2.The difference of the two is that each subframe of FDD frame structure is 1 millisecond (ms-millisecond), and TDD system is in each frame
1~2 special subframe is defined in (10 subframes), special subframe is by downlink synchronization slot, protection interval, uplink synchronous time slot
Three parts are constituted.According to the difference of ascending-descending subframes ratio, 3GPP defines the TDD-LTE system frame structure such as table 1, wherein D
Indicate that downlink subframe, U indicate sub-frame of uplink, S is special subframe:
Table 1:TDD LTE frame structure
In traditional 3GPP version, data transmission occurs between base station and user equipment (UE-User Equipment).
In 3GPP R12, D2D is set up the project and is discussed, the essential characteristic of D2D is that the data between UE is allowed to transmit.For FDD
For TDD system, the Main Viewpoints of 3GPP are: UE in same frequency range realization transmitting-receiving and does not allow UE while receiving in D2D system
Hair.Further, in order to avoid the interference that downlink data communicates D2D, 3GPP current Main Viewpoints are using upstream band
(FDD) or subframe (TDD) is communicated for D2D.
As the important technology in traditional network, hybrid automatic repeat-request (HARQ-Hybrid Automatic
Repeat Request) and Adaptive Modulation and Coding (AMCS-Adaptive Modulation and Coding Scheme) is no
It is evitable to be continued to use in D2D.Therefore, the reception UE in D2D (RUE-Receiving UE) is also required to traditional net
UE in network like that feeds back the data received, such as replys/non-response (ACK/NACK-Acknowledge/Non-
Acknowledge), the information such as channel status instruction (CSI-Channel Status Indicator).In addition, some auxiliary
Information is such as synchronous, and the information such as demodulated reference signal (DMRS-Demodulation Reference Signal) are also possible to need
It is fed back to and sends UE (TUE-Transmitting UE).
In traditional LTE system, the uplink feedback information of UE mainly passes through Physical Uplink Control Channel (PUCCH-
Physical Uplink Control Channel) transmission.PUCCH generally takes up the frequency band at the carrier wave edge in 1 subframe,
The remaining band resource of carrier wave can be used for transmitting physical Uplink Shared Channel (PUSCH-Physical Uplink Shared
Channel), i.e. PUCCH and PUSCH frequency division multiplexing.
Summary of the invention
When the transmission mode of D2D system time division duplex makes UE send feedback information, reciever cannot send data simultaneously
Information.Inventors discovered through research that the feedback information in traditional scheme is full of a subframe, if a data block corresponding one
A feedback information, then overall system capacity will generally be used for transmission feedback information, greatly reduce efficiency of transmission.
The invention discloses the methods communicated in a kind of user equipment (UE) of D2D system, wherein including walking as follows
It is rapid:
First information block is sent in subframe t
Wherein, the subframe t is made of X symbol, and the X is 14 for normal cyclic prefix (CP), for extending CP
It is 12.The duration of the first information block is T1 symbol, and the T1 is the positive integer for being less than the X greater than 0.Described
One block of information includes demodulated reference signal (DMRS), and following at least one information:
A./non-response (ACK/NACK) is replied
B. channel status instruction (CSI)
C. synchronization signal
D. timing adjustment signaling
Specifically, according to an aspect of the present invention, it is characterised in that:
When the first information block includes the ACK/NACK, received data on the ACK/NACK instruction subframe k,
Wherein, the subframe of data block and the subframe k are received in the subframe before the subframe k is the subframe t recently
It is not less than 3 subframes with the interval of the subframe t
Specifically, according to an aspect of the present invention, which is characterized in that the demodulated reference signal (DMRS) is using following
One of pattern:
Discontinuous resource particle (RE) in-one symbol
The part of downlink DMRS second time slot in subframe of existing normal sub-frames
The subframe is 1ms in the duration of LTE system, wherein 1 subframe is by 14 symbols for normal CP
It constitutes, for extending CP, 1 subframe is made of 12 symbols.According to D2D reuse LTE Corticofugal Modulation of Somatosensory mode either on
Row modulation system, the symbol can be orthogonal frequency division multiplexing (OFDM-Orthogonal Frequency Division respectively
Multiplexing) symbol either single-carrier frequency division multiple access symbol (SC-FDMA:Single-Carrier Frequency
Division Multiple Access)。
The CSI includes the CSI type either newly defined defined in LTE, and CSI type defined in LTE includes
ACK/NACK, channel quality indicate (CQI-Channel Quality Indicator), pre-coding matrix instruction (PMI-
Precoding Matrix Indicator), order instruction (RI-Rank Indicator) listens to signal (SRS-Sounding
Reference Signal) etc..The CSI type newly defined may include display channel state information etc., need further to be defined.
The CSI can be a seed type, such as ACK/NACK, can also simultaneously include a variety of CSI, such as CQI and PMI.
Above-mentioned synchronization signal includes the synchronization signal that synchronization signal defined in LTE either newly defines, and LTE is defined same
Walking signal includes Physical Random Access Channel (PRACH-Physical Random Access Channel), the synchronization newly defined
Channel may include the exploration signal (Discovery Signal) that 3GPP is just being discussed in cellulor enhancing project.
The timing adjustment signaling is used to adjust the sending time of opposite end UE, can be the either high-rise letter of dynamic signaling
It enables.
The DMRS is for channel estimation to demodulate above- mentioned information type a~d.The possible pattern of DMRS is as follows:
Discontinuous resource particle (RE) in-one symbol
Continuous resource particle (RE) in-one symbol
The part of downlink DMRS second time slot in subframe of existing normal sub-frames
In the first above-mentioned scheme, others RE can be used for transmitting other in the first information block in the symbol
Information, therefore can be minimized the occupied symbolic number of first information block；Above-mentioned second scheme is more suitable for OFDM modulation
Mode.
As an embodiment of the present invention, in tdd frame structure #1, subframe 2 and subframe 7 are communicated for D2D, UE1 and UE2
The normal CP and SC-FDMA symbol of D2D communication-use is carried out, UE2 has sent a data block to UE1 in subframe 2, and UE1 is in subframe
7 send corresponding feedback information.Subframe 2 be UE1 be most recently received before subframe 7 data subframe and introns between the two
Frame number is not less than 3.Wherein, the half RE in equally spaced first symbol for occupying subframe 7 sends DMRS；Remaining RE hair
ACK/NACK, the ACK/NACK is sent to reflect whether UE1 correctly receives the data block in subframe 2.In attached drawing 1 (a)
First information block illustrate the mapping mode of the present embodiment first information block.
As another embodiment of the invention, in FDD system, the subframe 1 of uplink carrier frequencies is logical for D2D to subframe 10
Letter, UE1 and UE2 carry out D2D communication-normal CP of use and OFDM symbol, UE2 have sent a data block to UE1 in taro frame 1,
UE1 sends corresponding feedback information in subframe 5.Subframe 1 is the subframe and the two that UE1 is most recently received data before subframe 5
Between be spaced 3 subframes.Wherein, the portion subcarriers for occupying the 13rd and the 14th OFDM symbol of subframe 5 send DMRS- weight
With the pattern of existing DMRS port 7 and port 8；Occupy the non-DMRS resource particle (RE) of the 13rd OFDM symbol of subframe 5
Send ACK/NACK and 4 bit CQI of 2 bits；Occupy the non-DMRS resource particle of the 14th OFDM symbol of subframe 5
(RE) PMI is sent；The 12nd OFDM symbol transmission timing for occupying subframe 5 adjusts signaling.The ACK/NACK of 2 bits and
4 bit CQI can be mapped to the 13rd OFDM symbol by the way of frequency division multiplexing or code division multiplexing.Attached drawing 1 (b)
In first information block illustrate the mapping mode of the present embodiment first information block.
As another embodiment of the invention, in FDD system, the subframe 1 of uplink carrier frequencies is logical for D2D to subframe 10
Letter, UE1 and UE2 carry out D2D communication-normal CP of use and OFDM symbol, and first symbol is used for the transmission of DMRS, and second
Symbol is used for the transmission of ACK and CQI.First information block in attached drawing 1 (3) illustrates the mapping side of the present embodiment first information block
Formula.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
The second block of information is received in subframe t
The duration of second block of information is T2 symbol, and the T2 is positive integer, and the T2 and the T1
Be less than or equal to the X.Second block of information includes demodulated reference signal (DMRS), and following at least one information:
A. control instructions (RCI) is received
B. data
C. timing adjustment signaling
Specifically, above-mentioned aspect according to the present invention, which is characterized in that the demodulated reference signal (DMRS) reuses following
One of pattern:
The downlink DMRS pattern of existing normal sub-frames
The downlink DMRS pattern of-TDD special subframe
Uplink DMRS pattern
Above-mentioned reception control instructions (RCI) include information required for solution adjusting data, and possible information includes resource allocation,
MCS, HARQ process number, new data instruction, power control, redundancy versions etc..Above-mentioned timing adjustment signaling is for adjusting opposite end UE
Sending time, can be dynamic signaling either high-level signaling.
As an embodiment of the present invention, the second block of information occupies 2~14 SC-FDMA symbols of normal sub-frames,
DMRS therein reuses existing uplink DMRS pattern.First and second block of informations occupy altogether 14 symbols.Attached drawing 1 (a)
In the second block of information illustrate the mapping mode of the second block of information of the present embodiment.
As another embodiment of the invention, the second block of information occupies 1~11 OFDM symbol of normal sub-frames,
In DMRS reuse the downlink DMRS pattern-of TDD special subframe because of normal sub-frames downlink DMRS second time slot in subframe
Part be used for first information block.First and second block of informations occupy altogether 14 symbols.The second letter in attached drawing 1 (b)
Breath block illustrates the mapping mode of the second block of information of the present embodiment.
As another embodiment of the invention, in FDD system, the second block of information occupies 4~14 of normal sub-frames
OFDM symbol, DMRS therein reuse existing uplink DMRS pattern.First and second block of informations occupy 13 symbols altogether,
3rd symbol is used as protection interval-for accommodating the propagation delay of first information block and the second block of information between D2D UE.
The second block of information in attached drawing 1 (c) illustrates the mapping mode of the second block of information of the present embodiment.
Specifically, according to an aspect of the present invention, which is characterized in that if second block of information includes the timing
Signaling is adjusted, further includes following steps
Sending time is adjusted according to the timing adjustment signaling
Specifically, according to an aspect of the present invention, which is characterized in that for time division duplex (TDD) system, the T2 with
It is described T1's and be equal to the X.
For frequency division duplex (FDD) system, the sum of the T2 and the T1 subtract 1 equal to the X or are equal to X.
The first information block and second block of information are sent by two UE respectively, and are in the same subframe, then are examined
Consider propagation delay caused by the distance between two UE, theoretically need the protection interval of 2r/c, wherein r, c is respectively two
Distance and the light velocity between UE.In view of two UE generally distance of D2D communication is no more than such as 500 meters, the protection interval needed
For 3.3 microseconds (us-microsecond).For TDD system, the protection interval of special subframe can use to receive D2D to communicate
Protection interval, therefore TDD system does not need the protection interval of additionally reserved D2D, i.e., the described T2 and described T1's and is equal to institute
State X.For FDD system, there are two types of select: the protection interval of a symbol is reserved for D2D, or do not reserve protection interval and
Endure certain performance loss.In view of typical D2D communication distance very little, the performance loss is acceptable.
UE in D2D system should can adjust the transmission timing of opposite end UE by signaling to avoid interference.For example, when hair
When the signal for sending UE to send is due to having floated to next subframe of eNB timing when propagation delay reaches and receives UE, receiving UE can
Signal is sent in advance to signal transmission UE by timing adjustment.
The invention discloses the methods communicated in a kind of user equipment (UE) of D2D system, wherein including walking as follows
It is rapid:
First information block is received in subframe t
Wherein, the subframe t is made of X symbol, and the X is 14 for normal CP, is 12 for extension CP.Described
The duration of one block of information is T1 symbol, and the T1 is the positive integer for being less than the X greater than 0.The first information block packet
Containing demodulated reference signal (DMRS), and following at least one information:
A./non-response (ACK/NACK) is replied
B. channel status instruction (CSI)
C. synchronization signal
D. timing adjustment signaling
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps
The second block of information is sent in subframe t
The duration of second block of information is T2 symbol, and the T2 is positive integer, and the T2 and the T1
Be less than or equal to the X.Second block of information includes demodulated reference signal (DMRS), and following at least one information:
A. control instructions (RCI) is received
B. data
C. timing adjustment signaling
Specifically, according to an aspect of the present invention, which is characterized in that if the first information block includes the timing
Signaling is adjusted, further includes following steps
Sending time is adjusted according to the timing adjustment signaling
Specifically, according to an aspect of the present invention, which is characterized in that the first information block includes the ACK/NACK
When, further include following steps:
When the ACK/NACK is NACK, when subframe j retransmits the data of subframe k, and the ACK/NACK is ACK, in son
Frame j sends new data
Wherein, the subframe of data block and the subframe k are sent in the subframe before the subframe k is the subframe t recently
It is not less than 3 subframes with the interval of the subframe t, the subframe j is to send data block recently in subframe after the subframe t
Subframe and the interval of the subframe j and the subframe t be not less than 3 subframes.
Above-mentioned re-transmission data are superfluous including chasing merging (CC-Chase Combining) either increment according to traditional scheme
Remaining (IR-Incremental Redundancy).
Since each subframe can accommodate a first information block and the second block of information, for each data
Block (the second block of information) has an independent feedback instruction, that is, does not need the ACK/NACK binding plan using similar TDD system
Slightly, feedback can be sent more timely to reduce the memory spending of UE.
Specifically, according to an aspect of the present invention, which is characterized in that the demodulated reference signal (DMRS) is using following
One of pattern:
Discontinuous resource particle (RE) in-one symbol
The part of downlink DMRS second time slot in subframe of existing normal sub-frames
Specifically, according to an aspect of the present invention, which is characterized in that the demodulated reference signal (DMRS) reuses following
One of pattern:
The downlink DMRS pattern of existing normal sub-frames
The downlink DMRS pattern of-TDD special subframe
Uplink DMRS pattern
The invention discloses a kind of user equipmenies, comprising:
First module: first information block is sent in subframe t
Wherein, the subframe t is made of X symbol, and the X is 14 for normal cyclic prefix (CP), for extending CP
It is 12.The duration of the first information block is T1 symbol, and the T1 is the positive integer for being less than the X greater than 0.Described
One block of information includes demodulated reference signal (DMRS), and following at least one information:
A./non-response (ACK/NACK) is replied
B. channel status instruction (CSI)
C. synchronization signal
D. timing adjustment signaling
As one embodiment, in above equipment further include:
Second module: the second block of information is received in subframe t
The duration of second block of information is T2 symbol, and the T2 is positive integer, and the T2 and the T1
Be less than or equal to the X.Second block of information includes demodulated reference signal (DMRS), and following at least one information:
A. control instructions (RCI) is received
B. data
C. timing adjustment signaling
It is also wrapped in above equipment as one embodiment if second block of information includes the timing adjustment signaling
It includes:
Third module: sending time is adjusted according to the timing adjustment signaling
The invention also discloses a kind of user equipmenies, comprising:
First module: first information block is received in subframe t
Wherein, the subframe t is made of X symbol, and the X is 14 for normal cyclic prefix (CP), for extending CP
It is 12.The duration of the first information block is T1 symbol, and the T1 is the positive integer for being less than the X greater than O.Described
One block of information includes demodulated reference signal (DMRS), and following at least one information:
A./non-response (ACK/NACK) is replied
B. channel status instruction (CSI)
C. synchronization signal
D. timing adjustment signaling
As one embodiment, above equipment further include:
Second module: the second block of information is sent in subframe t
The duration of second block of information is T2 symbol, and the T2 is positive integer, and the T2 and the T1
Be less than or equal to the X.Second block of information includes demodulated reference signal (DMRS), and following at least one information:
A. control instructions (RCI) is received
B. data
C. timing adjustment signaling
It is also wrapped in above equipment as one embodiment if the first information block includes the timing adjustment signaling
It includes:
Third module: sending time is adjusted according to the timing adjustment signaling
The present invention is solved the problems, such as since efficiency of transmission caused by feeding back reduces in D2D system, by designing less than 1
Primary interaction occurs for the feedback information of subframe and the UE for allowing D2D to communicate in each subframe, and the present invention substantially increases
The efficiency of transmission of D2D system, while passing through the memory spending for more timely feeding back and reducing UE.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent:
Fig. 1 shows the mapping schematic diagram of first information block and the second block of information；
Fig. 2 shows the protection interval receivings that special subframe is utilized in TDD system according to an embodiment of the invention
The schematic diagram of D2D propagation delay；
Fig. 3 shows the device that the reception Data Concurrent according to an embodiment of the invention in UE send feedback
Structural block diagram；
Fig. 4 shows the device according to an embodiment of the invention for feeding back for receiving in UE and sending data
Structural block diagram；
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with attached drawing, it should be noted that do not rushing
In the case where prominent, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
Embodiment 1
Embodiment 1 is to accommodate D2D propagation delay schematic diagram using the protection interval of special subframe in TDD system.Such as attached drawing 2
Shown, wherein Dw, G, Up respectively indicate downlink synchronization slot, protection interval, uplink synchronous time slot.In TDD system, macrocell
(eNB-eNodeB) frame structure #0 and only sub-frame of uplink be used for D2D communication.Assuming that the propagation delay of eNB to UE1 is d1, eNB
Propagation delay to UE2 is d2, and the propagation delay of UE1 to UE2 is d12, d1 and d12's and is equal to d2.UE1 is relative to eNB's
The timing of subframe 2 shifts to an earlier date g/2 and sends first information block U1 to UE2, and wherein g is that protection interval G continues in special subframe
Time, U1 reach the time delay of UE2 d12.UE2 sends the second block of information U2 to UE1, U2 arrival UE1 after receiving U1 immediately
Time delay d12 again.Therefore, when UE1 and UE2 transmits first information block and the practical occupancy of the second block of information in subframe 2
Between be that 1ms adds 2 times of d12.In view of 2 times of d12 are much smaller than g/2, the protection interval G of special subframe can accommodate enough
D2D protection interval.
Embodiment 2
Embodiment 2 is that the structural block diagram of the device of feedback is sent for the reception Data Concurrent in UE, as shown in Fig. 3.?
In device 100, data sink 101 receives data (while including signaling, i.e. the second block of information) in subframe t.If described
It include timing adjustment signaling in the data that device 101 receives, then timing adjusting apparatus 102 is according to the timing adjustment signaling tune
Whole sending time.It feeds back sending device 103 and sends the feedback information for being directed to the data in subframe k, wherein the subframe k is in son
After frame t and interval is not less than 3 subframes, the feedback information, that is, first information block.
Above-mentioned timing adjusting apparatus 102 be can screening device, indicated in fig. 3 with dotted line.
Embodiment 3
Embodiment 3 is to feed back and send the structural block diagram of the device of data for the reception in UE, as shown in Fig. 4.?
In device 200, feedback reception device 201 receives feedback (i.e. first information block) in subframe t.If described device 201 receives
Feedback in include timing adjustment signaling, then timing adjusting apparatus 202 according to the timing adjustment signaling adjust sending time.Number
Data are sent in subframe t according to sending device 203.
Above-mentioned timing adjusting apparatus 202 be can screening device, indicated in figure 4 with dotted line.
Embodiment 4
Embodiment 4 is to feed back and send the structural block diagram of the device of data for the reception in UE, as shown in Fig. 4.?
In device 200, feedback reception device 201 receives feedback (i.e. first information block) in subframe t.If described device 201 receives
Feedback in include timing adjustment signaling, then timing adjusting apparatus 202 according to the timing adjustment signaling adjust sending time.Such as
It include ACK in feedback described in fruit, then data sending device 203 sends new data in subframe k, if including in the feedback
NACK, then data sending device 203 sends in subframe k and retransmits data, wherein the subframe k is after subframe t and interval is not small
In 3 subframes.
Above-mentioned timing adjusting apparatus 202 be can screening device, indicated in figure 4 with dotted line.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be referred to by program
Related hardware is enabled to complete, described program can store in computer readable storage medium, such as read-only memory, hard disk or light
Disk etc..Optionally, one or more integrated circuit can be used also to realize in all or part of the steps of above-described embodiment.Phase
It answers, each modular unit in above-described embodiment, can be realized using example, in hardware, it can also be by the form of software function module
It realizes, the application is not limited to the combination of the software and hardware of any particular form.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification made, equivalent replacement, improve etc., it should be included in protection of the invention
Within the scope of.
Claims (15)
1. a kind of method that user is communicated into the user equipment (UE) of custom system, wherein include the following steps:
First information block is sent in subframe t；
The second block of information is received in subframe t；
Wherein, the subframe t is made of X symbol, and the X is 14 for normal cyclic prefix CP, is 12 for extension CP；Institute
The duration for stating first information block is T1 symbol, and the T1 is the positive integer for being less than the X greater than 0；The first information
Block includes demodulated reference signal DMRS, and following at least one information:
A./non-response ACK/NACK is replied；
B. channel status indicates CSI；
C. synchronization signal；
D. timing adjustment signaling；
The duration of second block of information is T2 symbol, and the T2 is positive integer, and the T2 with it is described T1's and small
In equal to the X；Second block of information includes demodulated reference signal DMRS, and following at least one information:
A. control instructions RCI is received；
B. data；
C. timing adjustment signaling.
2. the method according to claim 1, wherein if second block of information is believed comprising the timing adjustment
It enables, further includes following steps:
Sending time is adjusted according to the timing adjustment signaling.
3. according to the method described in claim 1, it is characterized by:
When the first information block includes the ACK/NACK, received data on the ACK/NACK instruction subframe k,
Wherein, the subframe of data block is received in the subframe before the subframe k is the subframe t recently and the subframe k and institute
The interval of subframe t is stated not less than 3 subframes.
4. the method according to claim 1, wherein the demodulated reference signal DMRS using following pattern it
One:
Discontinuous resource particle RE in-one symbol；
Continuous resource particle RE in-one symbol；
The part of downlink DMRS second time slot in subframe of existing normal sub-frames.
5. the method according to claim 1, wherein the demodulated reference signal DMRS reuse following pattern it
One:
The downlink DMRS pattern of existing normal sub-frames；
The downlink DMRS pattern of-TDD special subframe；
Uplink DMRS pattern.
6. the method according to claim 1, wherein for TDD system, the T2 and the T1's
Be equal to the X.
7. a kind of method that user is communicated into the user equipment (UE) of custom system, wherein include the following steps:
First information block is received in subframe t；
The second block of information is sent in subframe t；
Wherein, the subframe t is made of X symbol, and the X is 14 for normal CP, is 12 for extension CP；First letter
The duration for ceasing block is T1 symbol, and the T1 is the positive integer for being less than the X greater than 0；The first information block includes solution
Adjust reference signal DMRS, and following at least one information:
A./non-response ACK/NACK is replied；
B. channel status indicates CSI；
C. synchronization signal；
D. timing adjustment signaling；
The duration of second block of information is T2 symbol, and the T2 is positive integer, and the T2 with it is described T1's and small
In equal to the X；Second block of information includes demodulated reference signal DMRS, and following at least one information:
A. control instructions RCI is received；
B. data；
C. timing adjustment signaling.
8. the method according to the description of claim 7 is characterized in that if the first information block is believed comprising the timing adjustment
It enables, further includes following steps:
Sending time is adjusted according to the timing adjustment signaling.
9. the method according to the description of claim 7 is characterized in that further including when the first information block includes ACK/NACK
Following steps:
When the ACK/NACK is NACK, when subframe j retransmits the data of subframe k, and the ACK/NACK is ACK, in subframe j
Send new data；
Wherein, the subframe of data block is sent in the subframe before the subframe k is the subframe t recently and the subframe k and institute
The interval of subframe t is stated not less than 3 subframes, the subframe j is the son for sending data block in subframe after the subframe t recently
Frame and the interval of the subframe j and the subframe t are not less than 3 subframes.
10. the method according to the description of claim 7 is characterized in that the demodulated reference signal DMRS using following pattern it
One:
Discontinuous resource particle RE in-one symbol；
Continuous resource particle RE in-one symbol；
The part of downlink DMRS second time slot in subframe of existing normal sub-frames.
11. the method according to the description of claim 7 is characterized in that the demodulated reference signal DMRS reuse following pattern it
One:
The downlink DMRS pattern of existing normal sub-frames；
The downlink DMRS pattern of-TDD special subframe；
Uplink DMRS pattern.
12. a kind of user equipment, which is characterized in that the equipment includes:
First module: first information block is sent in subframe t；
Second module: the second block of information is received in subframe t；
Wherein, the subframe t is made of X symbol, and the X is 14 for normal cyclic prefix CP, is 12 for extension CP；Institute
The duration for stating first information block is T1 symbol, and the T1 is the positive integer for being less than the X greater than 0；The first information
Block includes demodulated reference signal DMRS, and following at least one information:
A./non-response ACK/NACK is replied；
B. channel status indicates CSI；
C. synchronization signal；
D. timing adjustment signaling；
The duration of second block of information is T2 symbol, and the T2 is positive integer, and the T2 with it is described T1's and small
In equal to the X；Second block of information includes demodulated reference signal DMRS, and following at least one information:
A. control instructions RCI is received；
B. data；
C. timing adjustment signaling.
13. equipment according to claim 12, which is characterized in that if second block of information includes the timing adjustment
Signaling, the equipment further include:
Third module: sending time is adjusted according to the timing adjustment signaling.
14. a kind of user equipment, which is characterized in that the equipment includes:
First module: first information block is received in subframe t；
Second module: the second block of information is sent in subframe t；
Wherein, the subframe t is made of X symbol, and the X is 14 for normal cyclic prefix CP, is 12 for extension CP；Institute
The duration for stating first information block is T1 symbol, and the T1 is the positive integer for being less than the X greater than 0；The first information
Block includes demodulated reference signal DMRS, and following at least one information:
A./non-response ACK/NACK is replied；
B. channel status indicates CSI；
C. synchronization signal；
D. timing adjustment signaling；
The duration of second block of information is T2 symbol, and the T2 is positive integer, and the T2 with it is described T1's and small
In equal to the X；Second block of information includes demodulated reference signal DMRS, and following at least one information:
A. control instructions RCI is received；
B. data；
C. timing adjustment signaling.
15. equipment according to claim 14, which is characterized in that if the first information block includes the timing adjustment
Signaling, the equipment further include:
Third module: sending time is adjusted according to the timing adjustment signaling.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910382304.1A CN110190940B (en) | 2013-05-31 | 2013-05-31 | Communication method and device in D2D system |
| CN201310216218.6A CN104219023B (en) | 2013-05-31 | 2013-05-31 | Communication means and device in a kind of D2D system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310216218.6A CN104219023B (en) | 2013-05-31 | 2013-05-31 | Communication means and device in a kind of D2D system |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910382304.1A Division CN110190940B (en) | 2013-05-31 | 2013-05-31 | Communication method and device in D2D system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104219023A CN104219023A (en) | 2014-12-17 |
| CN104219023B true CN104219023B (en) | 2019-05-31 |
Family
ID=52100193
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310216218.6A Active CN104219023B (en) | 2013-05-31 | 2013-05-31 | Communication means and device in a kind of D2D system |
| CN201910382304.1A Active CN110190940B (en) | 2013-05-31 | 2013-05-31 | Communication method and device in D2D system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910382304.1A Active CN110190940B (en) | 2013-05-31 | 2013-05-31 | Communication method and device in D2D system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN104219023B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104486049A (en) * | 2014-12-30 | 2015-04-01 | 宇龙计算机通信科技(深圳)有限公司 | Data receiving state feedback method, data retransmission method and device and terminal |
| CN107528616B (en) * | 2016-06-22 | 2020-11-06 | 上海朗帛通信技术有限公司 | Large-scale MIMO transmission method and device |
| CN109982290B (en) * | 2017-12-28 | 2021-03-30 | 华为技术有限公司 | Method for sending and receiving response information, communication equipment and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036399A (en) * | 2009-09-29 | 2011-04-27 | 中兴通讯股份有限公司 | Method for sending uplink control information on back haul link |
| CN102300234A (en) * | 2010-06-25 | 2011-12-28 | 上海无线通信研究中心 | Novel multi-hop routing transmission system and method |
| CN103270710A (en) * | 2010-12-21 | 2013-08-28 | 株式会社泛泰 | Method and apparatus for transmitting and receiving signals in wireless communication system |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1965513B (en) * | 2004-05-01 | 2014-11-26 | 桥扬科技有限公司 | Methods and apparatus for communication with time-division duplexing |
| CN101286792A (en) * | 2007-04-11 | 2008-10-15 | 北京三星通信技术研究有限公司 | Device and method for intensifying synchronous HARQ |
| ES2377540T5 (en) * | 2008-02-06 | 2018-09-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and devices related to downlink assignments |
| US8160018B2 (en) * | 2008-03-14 | 2012-04-17 | Samsung Electronics Co., Ltd. | Methods of uplink channelization in LTE |
| US8995559B2 (en) * | 2008-03-28 | 2015-03-31 | Qualcomm Incorporated | Signaling message transmission in a wireless communication network |
| CN101267284B (en) * | 2008-04-25 | 2013-01-16 | 中兴通讯股份有限公司 | Method for confirmation information feedback in physical uplink share channel |
| JP5016138B2 (en) * | 2008-06-30 | 2012-09-05 | テレフオンアクチーボラゲット エル エム エリクソン（パブル） | Method and apparatus in communication system |
| US8971241B2 (en) * | 2008-09-30 | 2015-03-03 | Qualcolmm Incorporated | Techniques for supporting relay operation in wireless communication systems |
| CN101478383B (en) * | 2009-02-03 | 2014-03-19 | 中兴通讯股份有限公司 | Feedback method for downlink sub-frame response information in long-term evolution system |
| KR101600486B1 (en) * | 2009-05-29 | 2016-03-07 | 엘지전자 주식회사 | Method and apparatus for transmitting control information from relay node on backhaul uplink |
| KR101227520B1 (en) * | 2010-07-09 | 2013-01-31 | 엘지전자 주식회사 | Method for transmitting uplink reference signal in multiple antenna wireless communication system and apparatus therefor |
| CN102136896A (en) * | 2011-02-22 | 2011-07-27 | 电信科学技术研究院 | Method and equipment for transmitting ACK (acknowledgement)/NACK (Negative Acknowledgement) information |
| US9125135B2 (en) * | 2011-05-09 | 2015-09-01 | Telefonaktiebolaget L M Ericsson (Publ) | Independent configuration identities in a heterogeneous cellular communication network |
| CN102843732B (en) * | 2011-06-20 | 2015-11-25 | 华为技术有限公司 | A kind of TDD communication means, base station and subscriber equipment |
| US20130100949A1 (en) * | 2011-10-25 | 2013-04-25 | Qualcomm Incorporated | Dual physical layer transceivers for high speed synchronous interface (hsi) frame interleaving |
-
2013
- 2013-05-31 CN CN201310216218.6A patent/CN104219023B/en active Active
- 2013-05-31 CN CN201910382304.1A patent/CN110190940B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036399A (en) * | 2009-09-29 | 2011-04-27 | 中兴通讯股份有限公司 | Method for sending uplink control information on back haul link |
| CN102300234A (en) * | 2010-06-25 | 2011-12-28 | 上海无线通信研究中心 | Novel multi-hop routing transmission system and method |
| CN103270710A (en) * | 2010-12-21 | 2013-08-28 | 株式会社泛泰 | Method and apparatus for transmitting and receiving signals in wireless communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110190940A (en) | 2019-08-30 |
| CN104219023A (en) | 2014-12-17 |
| CN110190940B (en) | 2021-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20230370208A1 (en) | Method, user equipment and base station for transmitting harq-ack information | |
| CN109478979B (en) | Method and apparatus for setting multiple DMRS structures in a wireless cellular communication system | |
| CN103733586B (en) | The method and its user equipment of Downlink Control Information are sent/are received in wireless access system | |
| CN105981454B (en) | The method and device thereof of synchronization signal and synchronizing channel are sent in the wireless communication system that holding equipment to equipment communicates | |
| CN106068668B (en) | The method and apparatus of device-to-device communication are executed in a wireless communication system | |
| CN106537821B (en) | The method and its equipment of the channel state information about unauthorized band are reported in a wireless communication system | |
| KR102110214B1 (en) | Method for device to device communication based on partial operation control of device | |
| US10177959B2 (en) | Method and apparatus for operating transmission/reception terminal through resource allocation of D2D communication in wireless communication system | |
| US8155023B2 (en) | MIMO with reserved subframes in primary and secondary base stations | |
| CN103283276B (en) | Radio base station apparatus, user terminal and wireless communications method | |
| CN110199491A (en) | The method and device thereof of HARQ-ACK signal are sent in a wireless communication system | |
| CN104348591B (en) | A kind of sending method and user equipment, base station of ascending control information | |
| CN109219937A (en) | Downlink slot structure, channel arrangement and processing timeline option | |
| CN109417448A (en) | Support physics (PHY) layered scheme configured in same channel using hybrid parameter | |
| US20110110262A1 (en) | Downlink receiving status feedback method | |
| CN104521309B (en) | The method and its device of uplink signal are sent and received based on interference measurement | |
| CN109997381A (en) | Base station apparatus, terminal installation, communication means and integrated circuit | |
| CN108476494A (en) | Transmission method, the device of ascending control information | |
| CN103684705A (en) | Method, device and system for transmitting HARQ (hybrid automatic repeat request) response message and CSI (channel state information) | |
| CN109845170B (en) | Sounding feedback with shortened frame structure | |
| CN115134062A (en) | Method and apparatus for setting multiple DMRS structures in a wireless cellular communication system | |
| KR20170091604A (en) | Method for feeding back partial csis from user equipment in wireless communication system and an apparatus for the same | |
| WO2015099511A1 (en) | Method for feeding back channel quality indicator in wireless communication system and apparatus therefor | |
| CN105992361A (en) | Scheduling methods applied to enhanced CA (carrier aggregation) and devices | |
| CN110832802A (en) | Selection of waveforms for uplink communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |