CN105515735B - Method and apparatus for data transmission - Google Patents
Method and apparatus for data transmission Download PDFInfo
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- CN105515735B CN105515735B CN201410504582.7A CN201410504582A CN105515735B CN 105515735 B CN105515735 B CN 105515735B CN 201410504582 A CN201410504582 A CN 201410504582A CN 105515735 B CN105515735 B CN 105515735B
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Abstract
Method and apparatus this disclosure relates to be transmitted for data.In one embodiment, a kind of method for data transmission is provided.This method comprises: repeatedly sending data to user equipment；Determine that multiple predetermined periods, multiple predetermined period are separated by multiple, multiple interval is unequal；The affirmative acknowledgement for data from user equipment is detected during determining multiple predetermined periods；And in response to detecting affirmative acknowledgement, stop sending data.Also disclose the correlation method at user equipment, and the device for realizing these above-mentioned methods.
Description
Technical field
The embodiment of the present invention relates generally to the communication technology, more particularly, to the method and dress transmitted for data
It sets.
Background technique
Machine type communication (MTC) is usually applied in special scenes, such as intelligent metering.MTC user equipment (UE)
One example may include intelligent electric meter, and intelligent electric meter is frequently located in basement.Therefore, such MTC UE may meet with
By serious penetration loss, lead to not be communicated with network.In response to this, third generation cooperative partner program (3GPP)
A kind of concept of coverage enhancement is proposed in specification.Such coverage enhancement is realized by carrying out repeating to transmit to data.Pass through
A large amount of repetition transmission for being for example up to 100 times of data, can for example obtain the up to gain of 15dB in the downlink.
However, a large amount of repetition transmission of data may will be greatly reduced spectrum efficiency.It is in advance terminated for this purpose, having also been proposed
Concept.The generic principles terminated in advance, which are UE, reports acknowledgement/non-acknowledgement (ACK/NACK) to base station (such as eNB),
To notify whether eNB UE is correctly decoded the data received.If eNB receives the ACK from UE, stop
Repetition transmission to data.Since wireless channel conditions are with time change, so in order to guarantee that UE can be successfully received number
According to number of repetition needed for each data transmission is different.Data transmission is without repeating too many time in many cases, UE
The data can be successfully received.For example, in the case where UE1, UE2 and UE3 experienced different wireless channel conditions, for
UE1 may need to repeat 100 data transmission, may need to repeat 80 data transmission for UE2, and may be only for UE3
Need to repeat 60 data transmission.
By the concept terminated in advance as described above, the spectrum efficiency of system can be significantly improved.However, in advance
It terminates, currently only proposes basic principle, also lack concrete implementation scheme.
Summary of the invention
Generally, the embodiment of the present invention proposes a kind of method and apparatus for data transmission.
In one aspect, the embodiment of the present invention provides a kind of method for data transmission.This method comprises: to user
Equipment repeatedly sends data；Determine that multiple predetermined periods, multiple predetermined period are separated by multiple, multiple interval is not
It is equal；The affirmative acknowledgement for data from user equipment is detected during determining multiple predetermined periods；And in response to
It detects affirmative acknowledgement, stops sending the data.
The embodiment of this respect further includes a kind of device for data transmission.The device includes: transmission unit, is configured
Repeatedly to send data to user equipment；Period determination unit is configured to determine that multiple predetermined periods, multiple pre- timing
Section is separated by multiple, and multiple interval is unequal；Detection unit is configured as examining during determining multiple predetermined periods
Survey the affirmative acknowledgement for data from user equipment；And stop unit, it is configured to respond to detect affirmative acknowledgement
And stop sending data.
On the other hand, the embodiment of the present invention provides a kind of method for data transmission.This method comprises: from user
Equipment repeatedly receives data；Determine that multiple predetermined periods, multiple predetermined period are separated by multiple, multiple interval is not
It is equal；And response for data is sent to user equipment during determining multiple predetermined periods.
The embodiment of this respect further includes a kind of device for data transmission.The device includes: receiving unit, is configured
Repeatedly to receive data from base station；Period determination unit, is configured to determine that multiple predetermined periods, multiple predetermined period by
Multiple to separate, multiple interval is unequal；And transmission unit, be configured as during determining multiple predetermined periods to
Base station sends response for data.
It will be understood that by being described below, according to an embodiment of the invention, base station is on the uplink to user equipment weight
Data are sent in recurrence, and user equipment is directed to the response of the data on multiple predetermined periods of unequal interval to base station feedback, so that
The waste of the down-chain resource for Data duplication transmission can be reduced.Other features and advantages of the present invention will be by hereafter
It describes and is easy to understand.
Detailed description of the invention
Fig. 1 shows the environment that one embodiment of the present of invention can be implemented within；
Fig. 2 shows the flow charts of the method according to an embodiment of the invention for data transmission；
Fig. 3 is shown on PUCCH according to an embodiment of the invention for for the number for repeating transmission on PDSCH
According to feedback period example；
Fig. 4 shows the example according to an embodiment of the invention for UE feedback two predetermined periods of distribution；
Fig. 5 shows the decline distribution of one of cellular cell typical wireless channels；
Fig. 6 shows the downlink transmission according to an embodiment of the invention using time division duplex (TDD) mode
With the timing diagram of uplink transmission；
Fig. 7 shows the exemplary dispatch mode of UE according to an embodiment of the invention；
Fig. 8 shows the flow chart of the method according to an embodiment of the invention for data transmission；
Fig. 9 is shown on PUCCH according to an embodiment of the invention for repeating to send the example of the period of ACK；
Figure 10 shows the block diagram of the device according to an embodiment of the invention for data transmission；And
Figure 11 shows the block diagram of the device according to an embodiment of the invention for data transmission.
Specific embodiment
The principle of the present invention is described referring now to several example embodiments.It should be appreciated that describing these embodiments only
It is to make those skilled in the art can better understand that realizing the present invention in turn, and not limit the invention in any way
Range.
Term " base station " (BS) as used herein can indicate node B (NodeB or NB), evolution node B (eNodeB or
Person eNB), the low power nodes of femto base station, femto base station etc..
Term " user equipment " (UE) as used herein is any terminal device for referring to communicate with BS.As an example,
UE may include that terminal, mobile terminal (MT), subscriber stations (SS), portable subscriber platform (PSS), mobile station (MS) or access are whole
It holds (AT).
Term " includes " as used herein and its deformation are that opening includes, i.e., " including but not limited to ".Term "based"
It is " being based at least partially on ".Term " one embodiment " expression " at least one embodiment "；Term " another embodiment " indicates
" at least one other embodiment ".The related definition of other terms provides in will be described below.
Fig. 1 shows the environment that one embodiment of the present of invention can be implemented within.As shown, system 100 can
To include a base station (BS), such as eNB110, and two UE that can be communicated with eNB110, for example, MTC UE120 and
130.The number of base station shown in FIG. 1 and UE have no intention to limit merely for the sake of illustration purpose.It should be appreciated that in Fig. 1
ENB and MTC UE is only example, and the present invention is suitable for any base station and UE.
Communication between UE and BS can be implemented according to any communication protocol appropriate, including but not limited to, the first generation
(1G), the second generation (2.5G), the third generation (3G), forth generation (4G) communication protocol, and/or times for being currently known or developing in the future
What his agreement.
Any appropriate wireless communication technique can be used in UE and BS, and including but not limited to, CDMA (CDMA), frequency division are more
Location (FDMA), time division multiple acess (TDMA), frequency division duplex (FDD), time division duplex (TDD), multiple-input and multiple-output (MIMO), orthogonal frequency
Any other technology for dividing multiple access (OFDM), and/or being currently known or developing in the future.
In the example depicted in fig. 1, for illustration purposes only, in order to enhance covering, eNB110 can be in physical down chain
Road, which is shared, repeatedly sends data to UE120 on channel (PDSCH).In the side UE, whenever the data have been successfully decoded in UE120, just
Physically to eNB110 feeding back ACK on Uplink Control Channel (PUCCH).ENB110 stops sending out in response to receiving ACK
Data are sent, to improve the spectrum efficiency of system.This Real-time Feedback of UE can be by realizing in reserved PUCCH resource.
A kind of PUCCH resource reservation schemes can be the PUCCH for all remaining for feedback after each data retransmit in advance for UE
Resource.If the repetition that eNB carries out data in each subframe is sent, need to reserve a large amount of PUCCH resource.However,
It is limited to the probability that is successfully decoded of UE, after only repeatedly transmission reaches certain number, data can be just successfully decoded in UE, reserve
Resource in only a small part resource can be used in UE feeding back ACK, which results in the huge wastes of uplink resource.
In addition, eNB is usually required using on downlink control channel (PDCCH) in long term evolution (LTE) system
The PUCCH resource that control channel element (CCE) Lai Tongzhi UE distributes for it.If each data are all continued to employ for UE in advance after retransmitting
In the PUCCH resource of feedback, then also need to remain in advance after each data retransmit to notify that UE is its reserved PUCCH resource
CCE.Since CCE is very limited, on the one hand such scheme causes the unnecessary waste of CCE resource, on the other hand may lead
Cause can not be scheduled certain UE in certain subframes, so that the complexity of scheduling increases.
The reservation schemes of another PUCCH resource can be the PUCCH resource for remaining for feedback in advance at regular intervals.Example
Such as, after data every repetition transmission 10 times, PUCCH resource is reserved.This can reduce the wasting of resources to a certain extent.So
And because the probability that UE can be successfully decoded is bigger as number of repetition is more, so this equally spaced reserve PUCCH money
The scheme in source still results in the unnecessary waste of resource.
Fig. 2 shows the flow charts of the method 200 according to an embodiment of the invention for data transmission.Method
200 can be implemented by eNB110.
Method 200 starts from step 210, repeatedly sends data to UE in this eNB110.In one embodiment, the number
According to repetition transmission can periodically carry out, such as every subframe or every several subframes execute.In another embodiment, the number
According to repetition transmission can with unequal interval execute.Specific be spaced for repeating to send can flexible setting according to actual needs.
Then, method 200 proceeds to step 220, multiple predetermined periods is determined in this eNB110, to be directed to for UE
The data that eNB110 is sent carry out response (such as ACK/NACK) feedback.According to an embodiment of the invention, multiple predetermined period
It is separated by multiple, multiple interval is unequal.
As described above, typically, Data duplication transmission times is more, the probability that UE is successfully decoded is higher, correspondingly, in advance
The probability that the PUCCH resource stayed is used for feeding back ACK is also higher.In one embodiment, multiple between multiple predetermined periods
Interval is with generally downward trend arrangement.For example, multiple intervals are strictly arranged with the descending of time span.It means that
The number that eNB110 repeats to send data to UE on the uplink is more, and the interval of the period for response feedback is smaller, i.e.,
Period is more intensive.
Fig. 3 is shown on PUCCH according to an embodiment of the invention for for the number for repeating transmission on PDSCH
According to feedback period an example.In Fig. 3, G1, G2 ... Gm was indicated on the time between two neighboring predetermined period
Vertical interval.As shown in figure 3, the repetition transmission times with data gradually increases, for feedback predetermined period it
Between interval be gradually reduced, i.e. G1 >=G2 >=G3 >=... >=Gm.
Alternatively, multiple intervals between multiple predetermined periods can there are offices in the case where totally keeping downward trend
The backward in portion.For example, G2 >=G1 >=G3 >=... >=Gm.
In order to enable can be realized being correctly decoded for data in the case where wireless channel conditions are very poor, in one embodiment
In, it can will be used to be arranged at the beginning of the last one predetermined period that UE is fed back and had sent maximum transmission in data
After number.
It should be appreciated that the probability that UE is successfully decoded may be lower when Data duplication transmission times is less.In order to avoid upper
The unnecessary waste of downlink resources can will be used for first predetermined period that UE is fed back in one embodiment
Time interval between start time and the sending instant for the first time of data is set greater than predetermined threshold.The predetermined threshold for example may be used
Such as 20 required times are sent several times to be set as data.
Fig. 4 shows the example according to an embodiment of the invention for UE feedback two predetermined periods of distribution.Such as Fig. 4
It is shown, it is arranged after data are had sent maximum times m at the beginning of the latter period in two periods.Assuming that two
It is arranged after data are had sent T times at the beginning of the previous period in period, then total transmission times N is in formula (1)
It provides:
Wherein, k indicates the transmission times actually needed.
Statistically, the data expectation of total transmission times N provides in formula (2):
Wherein G (T) indicates the probability that UE is successfully decoded when k is less than T.
It should be appreciated that the value of G (T) is related with wireless channel conditions.In the case where given T, wireless channel conditions are got over
Good, i.e. channel fading is smaller, then G (T) is bigger；Conversely, wireless channel conditions are poorer, i.e., channel fading is bigger, then G (T) is bigger.
Fig. 5 shows the decline distribution of one of cellular cell typical wireless channels.As shown in figure 5, channel fading is in medium level example
Probability when such as near 0dB is larger, and it is below general to reach preferable level such as 5dB or more and poor level such as -5dB
Rate is smaller.It is also understood that wireless channel conditions can be using as known in the art or exploitation in the future any technology come really
Fixed, the scope of the present invention is not limited in this respect.
Assuming that G (T) is the convex function of monotonic increase in the case where given wireless channel conditions, and there is following property
Matter:
As T=0, G (T)=0；As T=m, G (T)=1.
According to an embodiment of the invention, the target of optimization is made in the case where given wireless channel conditionsMinimum, thus
Reduce the down-chain resource for data transmission.From formula (2) as can be seen that T 0 to m whenValue be less than T=0
With when T=mValue.
Assuming that T > m/2, because G (T) is the convex function of monotonic increase, following formula (3) is set up:
It therefore deduces thatAs shown in figure 4, when two predetermined periods of distribution are used for UE to data
Transmission is repeated when being fed back, at the time of transmission for the first time at the beginning of previous predetermined period with data between interval be greater than
Interval between the latter predetermined period and previous predetermined period.
As described above, Fig. 4 shows a case that predetermined period is two.In one embodiment, the number of predetermined period
It can for example be determined for the amount of the resource of PUCCH based on the resource transmitted for uplink.It should be appreciated that predetermined period
Number it is more, the interval between adjacent predetermined period is smaller, then ACK more can be fed back to eNB in time by UE, enables eNB
Enough data that stop in time being sent, to save more down-chain resources.Therefore, when the amount of the resource for PUCCH is more
When, the predetermined period of greater number can be set.
As described above, the number of predetermined period is more, the down-chain resource of saving is more.It will be appreciated, however, that when pre-
The number of timing section reaches certain level, as the number of predetermined period further increases, down-chain resource it is further
The amplitude of saving can reduce.In another embodiment, it can be determined based on the amount of the resource for downlink transmission predetermined
The number of period.For example, the threshold value of the amount of the resource for downlink transmission can be set, and determine the number of predetermined period
Mesh, so that the amount of resource used in actual downstream link transmission reaches the threshold value.It is alternatively possible to be based on being used for simultaneously
The amount of the amount of the resource of uplink transmission and the resource for downlink transmission determines the number of predetermined period.For example, can
The number of predetermined period to be determined as to meet most numbers of the two conditions simultaneously.
Fig. 6 shows the downlink transmission and uplink according to an embodiment of the invention using TDD mode
The timing diagram of transmission.As shown in fig. 6, for the period of transmission data in the downlink and for feeding back needle in the uplink
To there are predetermined spaces between the period of the response of the data.
Above-described determination is directed to the specific of multiple predetermined periods of the data progress response feedback of eNB transmission for UE
Operation can execute in the enb.At this point, the down link control information (DCI) carried in the CCE on PDCCH can be used in eNB
To notify to UE as its reserved PUCCH resource.
Alternatively, determine that the concrete operations of multiple period can be by the node of other in network such as wireless network control
(RNC) it executes, or is executed by UE, then eNB obtains multiple predetermined period from relevant device.
Still referring to Figure 2, method 200 proceeds to step 230, examines during determining multiple predetermined periods in eNB herein
Survey the ACK for the data repeatedly sent from UE.In one embodiment, ACK is to repeat to send, to increase
ENB is successfully received the probability of ACK.The number of repetition can be equally during each predetermined period.Alternatively, the ACK
Number of repetition can be arranged at any time with ascending order.The sending method of ACK will be described in more detail below in reference to Fig. 8.
Because the number that UE sends ACK is that increase with time, eNB detects the time of the period of the ACK from UE
Length also should be increase with time.Correspondingly, in one embodiment, the length of multiple predetermined periods is arranged by ascending order.It should manage
A possibility that solution, Data duplication transmission times is bigger, and the probability that UE is successfully decoded is higher, and correspondingly UE sends ACK is bigger.This
When, the resource for UE distribution more for feedback can make ACK more effectively be sent to eNB.
Next, method 200 proceeds to step 240, stop sending data in response to detecting ACK in this eNB110.
According to an embodiment of the invention, eNB repeats to send data, multiple predetermined periods of the UE in unequal interval on the uplink to UE
On to eNB feedback be directed to the data response, allow to reduce for Data duplication transmission down-chain resource waste.
According to an embodiment of the invention, maximum number of times of transmission and ACK that Data duplication is sent repeat the maximum hair sent
Send number that can be carried by any suitable parameter, and notify to the equipment in system, the scope of the present invention in this regard not by
Limitation.The example of parameters that carrying ACK repeats the maximum number of times of transmission sent can be the n1PUCCH-AN- in 3GPP specification
Rep。
According to an embodiment of the invention, UE120 is on PUCCH during eNB110 repeats to send data on PDSCH to UE
To eNB feeding back ACK/NACK.If UE120, when being fed back on PUCCH, UE130 is also fed back on PUCCH, then exist
Interference may be generated between the two UE120 and 130.Fig. 7 shows the example of UE according to an embodiment of the invention
Scheduling mode.As shown in fig. 7, being dispatched after coverage enhancement (CE) the MTC UE1 for executing embodiment according to the present invention another
A CE MTC UE2, rather than the conventional UE of coverage enhancement is not supported, it can be to avoid the generation of above-mentioned interference.
Fig. 8 shows the flow chart of the method 800 according to an embodiment of the invention for data transmission.Method
800 can be implemented by UE120 and 130.
Method 800 starts from step 810, repeatedly receives data from eNB110 in this UE.As described above, implementing at one
In example, the repetitions of data reception can be carried out periodically, such as every subframe or be executed every several subframes.In another implementation
In example, the repetition reception of the data can with unequal interval be executed.Repeating received specific interval can be clever according to actual needs
Setting living.
Then, method 800 proceeds to step 820, determines in this UE for sending for from eNB repeatedly received data
Response multiple predetermined periods, multiple predetermined period separates by multiple, and multiple interval is unequal.Implement at one
In example, multiple intervals between multiple predetermined periods are with generally downward trend arrangement.For example, multiple intervals are strictly with the time
The descending of length is arranged.For example, G1 >=G2 >=G3 >=... >=Gm, wherein G1, G2 ... Gm indicate two neighboring predetermined period it
Between time upper vertical interval.Alternatively, multiple intervals between multiple predetermined periods can totally keep decline
There is the backward of part in the case where trend.For example, G2 >=G1 >=G3 >=... >=Gm.
In order to enable can be realized being correctly decoded for data in the case where wireless channel conditions are very poor, in one embodiment
In, maximum reception can be received in data by being arranged at the beginning of the last one predetermined period in multiple predetermined periods
After number.It, in one embodiment, can will be in multiple predetermined periods in order to avoid the unnecessary waste of uplink resource
First predetermined period at the beginning of time interval between the time of reception for the first time of data be set greater than predetermined threshold
Value.
As described above, in one embodiment, the number of predetermined period can be based on the resource transmitted for uplink
Such as the amount of the resource for PUCCH determines.It in another embodiment, can be based on the resource for downlink transmission
Measure the number to determine predetermined period.It is alternatively possible to amount simultaneously based on the resource transmitted for uplink and be used for down
The amount of the resource of uplink transmission determines the number of predetermined period.
In one embodiment, between received first period of data and the second period of the transmission for response
There are predetermined spaces.
It is directed to for UE from eNB above with reference to Fig. 2 to Fig. 7 determination described and repeats received data progress response feedback
The concrete operations of multiple predetermined periods can be applied equally to Fig. 8, and for simplicity, detail repeats no more.
In one embodiment, determine that the concrete operations for multiple predetermined periods can execute in UE.At this point, optional
Ground, multiple predetermined periods that UE can be determined are reported to eNB.
Alternatively, determine that the concrete operations of multiple period can be held by the node of other in network such as RNC or eNB
Row.Then, eNB can be used the DCI carried in the CCE on PDCCH to notify to UE as its reserved PUCCH resource.
Referring still to Fig. 8, method 800 proceeds to step 830, in this UE to eNB during determining multiple predetermined periods
It sends for the response from eNB repeatedly received data.According to an embodiment of the invention, as UE repeats to receive number from eNB
According to number it is more, UE carry out response feedback period interval it is smaller.By this method, UE can notify to dock to eNB in time
The case where data received are correctly decoded, correspondingly, eNB can stop data transmission based on ACK is detected in time,
So as to substantially reduce the waste of the down-chain resource for Data duplication transmission.
In one embodiment, UE is in response to being correctly decoded the data received, determining multiple predetermined
ACK is repeatedly sent during a predetermined period in period, to increase the probability that eNB is successfully received ACK.The number of repetition
It can be equally during each predetermined period.Alternatively, which can be arranged at any time with ascending order.
Fig. 9 is shown on PUCCH according to an embodiment of the invention for repeating to send the example of the period of ACK.
In Fig. 9, R1, R2 ... Rn indicates the transmission times of the ACK in time upper vertical multiple predetermined spaces.Such as Fig. 9 institute
Show, as the repetition transmission times of data gradually increases, the transmission times of ACK also gradually increases, i.e. R1≤R2≤... Rn.
Figure 10 shows the block diagram of the device 1000 according to an embodiment of the invention for data transmission.As shown
Out, equipment 1000 includes transmission unit 1010, is configured as repeatedly sending data to UE；Period determination unit 1020, quilt
It is configured to be configured to determine that multiple predetermined periods, multiple predetermined period are separated by multiple, multiple interval is unequal；
Detection unit 1030 is configured as detecting the ACK for data from UE during determining multiple predetermined periods；And stop
Stop element 1040 is configured to respond to detect ACK and stop sending data.
In one embodiment, multiple intervals between multiple predetermined periods are with generally downward trend arrangement.For example,
Multiple intervals are strictly arranged with the descending of time span.Alternatively, multiple intervals between multiple predetermined periods can be in totality
Keep the backward that there is part in the case where downward trend.
In one embodiment, the last one predetermined period in multiple predetermined periods starts from data by the maximum hair of transmission
After sending number.
In one embodiment, the hair for the first time at the beginning of first predetermined period in multiple predetermined periods with data
The time interval between the moment is sent to be greater than predetermined threshold.
In one embodiment, period determination unit 1020 may include number decision unit, the number decision unit quilt
The amount for the resource transmitted for uplink is configured to determine the number of multiple predetermined periods.In another embodiment,
The number decision unit is configured as determining the number of multiple predetermined periods based on the amount of the resource for downlink transmission.
In one embodiment, exist between the second period for sending the first period of data and for detecting ACK
Predetermined space.
In one embodiment, the time span of multiple predetermined periods is arranged by ascending order.
In one embodiment, transmission unit 1010 can be configured as sends data on PDSCH.
In one embodiment, detection unit 1030 can be configured as detects ACK on PUCCH.
Figure 11 shows the block diagram of the device 1100 according to an embodiment of the invention for data transmission.As shown
Out, device 1100 includes receiving unit 1110, is configured as repeatedly receiving data from base station；Period determination unit 1120,
It is configured to determine that multiple predetermined periods, multiple predetermined period are separated by multiple, multiple interval is unequal；And hair
Unit 1130 is sent, is configured as sending response for data to base station during determining multiple predetermined periods.
In one embodiment, multiple intervals between multiple predetermined periods are with generally downward trend arrangement.For example,
Multiple intervals are strictly arranged with the descending of time span.Alternatively, multiple intervals between multiple predetermined periods can be in totality
Keep the backward that there is part in the case where downward trend.
In one embodiment, the last one predetermined period in multiple predetermined periods starts from data and is received maximum connecing
After receipts number.
In one embodiment, it is connect for the first time with data at the beginning of first predetermined period in multiple predetermined periods
Time interval between quarter in time receiving is greater than predetermined threshold.
In one embodiment, period determination unit 1120 may include number decision unit, the number decision unit quilt
The amount for the resource transmitted for uplink is configured to determine the number of multiple predetermined periods.In another embodiment,
The number decision unit is configured as determining the number of multiple predetermined periods based on the amount of the resource for downlink transmission.
In one embodiment, for receiving data exist between the first period and the second period for sending response
Predetermined space.
In one embodiment, transmission unit 1130 may include the first transmission unit, which is configured
Repeatedly to be sent out during a predetermined period in multiple predetermined periods in response to being correctly decoded to the data received
ACK is sent, transmission times is repeated and is arranged at any time with ascending order.
In one embodiment, receiving unit 1110 can be configured as receives data on PDSCH.
In one embodiment, transmission unit 1130 can be configured as sends response on PUCCH.
Device 1000 and 1100 can be implemented in base station and user equipment respectively.It should be appreciated that in device 900 and 1000
The each unit recorded is corresponding with each step in the method 200 and 800 described with reference to figs. 2 to Fig. 9 respectively.Therefore, on
Text combines the operation of Fig. 2 to Fig. 9 description and feature to be equally applicable to device 1000 and 1100 and unit wherein included, and has
There is same effect, detail repeats no more.
Included unit can use various modes to realize in device 1000 and 1100, including software, hardware, firmware
Or any combination thereof.In one embodiment, software and/or firmware can be used to realize in one or more units, such as deposits
The machine-executable instruction of storage on a storage medium.Other than machine-executable instruction or alternatively, device 1000 and/
Or some or all of unit in 1100 can be realized at least partly by one or more hardware logic components.As showing
Example rather than limit, the hardware logic component for the exemplary type that can be used includes field programmable gate array (FPGA), dedicated collection
At circuit (ASIC), application specific standard product (ASSP), system on chip (SOC), Complex Programmable Logic Devices (CPLD), etc..
In general, various example embodiments of the invention can hardware or special circuit, software, logic or its
What implement in combination.Some aspects can be implemented within hardware, and other aspects can by controller, microprocessor or
Other are calculated implements in the firmware or software that equipment executes.When the various aspects of the embodiment of the present invention are illustrated or described as frame
When figure, flow chart or other certain graphical representations of use, it will be understood that box described herein, device, system, techniques or methods can
Using as unrestricted example in hardware, software, firmware, special circuit or logic, common hardware or controller or other in terms of
It calculates and implements in equipment or its certain combination.
As an example, implementation woods of the invention can be described in the context of machine-executable instruction, machine can be held
Row instruction such as includes in the program module executed in the device on the true or virtual processor of target.In general,
Program module includes routine, program, library, object, class, component, data structure etc., executes specific task or realizes specific
Abstract data structure.In embodiments, the function of program module can merge between described program module or
Segmentation.Machine-executable instruction for program module can execute in local or distributed apparatus.In distributed apparatus
In, program module can be located locally in remote medium storage the two.
It can be write with one or more programming languages for realizing the computer program code of method of the invention.These
Computer program code can be supplied to the processing of general purpose computer, special purpose computer or other programmable data processing units
Device so that program code when being executed by computer or other programmable data processing units, cause flow chart and/
Or function/operation specified in block diagram is carried out.Program code can completely on computers, part on computers, conduct
Independent software package, part are on computers and part is held on a remote computer or server on the remote computer or completely
Row.
In the context of the disclosure, machine readable media can be include or storage be used for or about instruction execution system
Any tangible medium of the program of system, device or equipment.Machine readable media can be machine-readable signal medium or machine can
Read storage medium.Machine readable media can include but is not limited to electronics, magnetic, it is optical, electromagnetism, infrared or partly lead
Body system, device or equipment equipment or its any appropriate combination.The more detailed example of machine readable storage medium includes having one
Or the electrical connection of multiple conducting wires, portable computer diskette, hard disk, random access memories (RAM), read-only memory
(ROM), Erasable Programmable Read Only Memory EPROM (EPROM or flash memory), light storage device, magnetic storage apparatus or its is any appropriate
Combination.
In addition, although operation is depicted with particular order, this simultaneously should not be construed and require this generic operation to show
Particular order is completed with sequential order, or executes the operation of all diagrams to obtain expected result.In some cases, more
Task or parallel processing can be beneficial.Similarly, although discussed above contain certain specific implementation details, this is not
It should be interpreted that any invention of limitation or the scope of the claims, and should be interpreted that the specific embodiment that can be directed to specific invention
Description.Certain features described in the context of separated embodiment can also be with combined implementation single real in this specification
It applies in example.Conversely, the various features described in the context of single embodiment can also discretely multiple embodiments or
Implement in any appropriate sub-portfolio.
Although with specific to the language description of structural features and or methods of action theme, but it is to be understood that institute
The theme limited in attached claim is not limited to above-described special characteristic or movement.On the contrary, above-described specific spy
Movement of seeking peace is disclosed as the exemplary forms for realizing claim.
Claims (44)
1. a kind of method for data transmission, comprising:
Data are repeatedly sent to user equipment；
Determine that multiple predetermined periods, the multiple predetermined period are separated by multiple, the multiple interval is unequal；
The affirmative acknowledgement for the data from the user equipment is detected during determining multiple predetermined periods；And
In response to detecting the affirmative acknowledgement, stop sending the data.
2. according to the method described in claim 1, wherein the multiple interval is arranged with the descending of time span.
3. according to the method described in claim 1, wherein the last one predetermined period in the multiple predetermined period starts from
The data are by after transmission maximum number of times of transmission.
4. according to the method described in claim 1, wherein at the beginning of first predetermined period in the multiple predetermined period
The time interval carved between the sending instant for the first time of the data is greater than predetermined threshold.
5. according to the method described in claim 1, wherein determining that the multiple predetermined period includes:
The number of the multiple predetermined period is determined based on the amount for the resource transmitted for uplink.
6. according to the method described in claim 1, wherein determining that the multiple predetermined period includes:
The number of the multiple predetermined period is determined based on the amount of the resource for downlink transmission.
7. according to claim 1 to method described in any one of 6, wherein the first period and use for sending the data
There are predetermined spaces between the second period for detecting the affirmative acknowledgement.
8. according to claim 1 to method described in any one of 6, wherein the time span of the multiple predetermined period is by liter
Sequence arrangement.
9. according to the method described in claim 1, wherein sending the data and including:
The data are sent on physical down link sharing channel.
10. according to the method described in claim 1, wherein detecting the affirmative acknowledgement and including:
The affirmative acknowledgement is physically detected on Uplink Control Channel.
11. according to the method described in claim 1, wherein the user equipment is machine type communication user equipment.
12. a kind of method for data transmission, comprising:
Data are repeatedly received from user equipment；
Determine that multiple predetermined periods, the multiple predetermined period are separated by multiple, the multiple interval is unequal；And
The response for being directed to the data is sent to the user equipment during determining multiple predetermined periods.
13. according to the method for claim 12, wherein the multiple interval is arranged with the descending of time span.
14. according to the method for claim 12, wherein the last one predetermined period in the multiple predetermined period starts
After the data are received maximum receive number.
15. according to the method for claim 12, wherein the beginning of first predetermined period in the multiple predetermined period
Time interval between moment and the time of reception for the first time of the data is greater than predetermined threshold.
16. according to the method for claim 12, wherein determining that the multiple predetermined period includes:
The multiple predetermined period is determined based on the amount for the resource transmitted for uplink.
17. according to the method for claim 12, wherein determining that the multiple predetermined period includes:
The multiple predetermined period is determined based on the amount of the resource for downlink transmission.
18. method described in any one of 2 to 17 according to claim 1, wherein when being used for received the first of the data
There are predetermined spaces between section and the second period of the transmission for the response.
19. method described in any one of 2 to 17 according to claim 1, wherein being sent during the multiple predetermined period
The response includes:
In response to being correctly decoded to the data received, the weight during a predetermined period in the multiple predetermined period
Affirmative acknowledgement is sent again, is repeated transmission times and is arranged at any time with ascending order.
20. according to the method for claim 12, wherein receiving the data and including:
The data are received on physical down link sharing channel.
21. according to the method for claim 12, wherein sending the response and including:
The response is physically sent on Uplink Control Channel.
22. according to the method for claim 12, wherein the method is executed by machine type communication user equipment.
23. a kind of device for data transmission, comprising:
Transmission unit is configured as repeatedly sending data to user equipment；
Period determination unit is configured to determine that multiple predetermined periods, and the multiple predetermined period is separated by multiple, described
Multiple intervals are unequal；
Detection unit, be configured as during determining multiple predetermined periods detection from the user equipment for the number
According to affirmative acknowledgement；And
Stop unit is configured to respond to detect the affirmative acknowledgement and stop sending the data.
24. device according to claim 23, wherein the multiple interval is arranged with the descending of time span.
25. device according to claim 23, wherein the last one predetermined period in the multiple predetermined period starts
After the data are by transmission maximum number of times of transmission.
26. device according to claim 23, wherein the beginning of first predetermined period in the multiple predetermined period
Time interval between moment and the sending instant for the first time of the data is greater than predetermined threshold.
27. device according to claim 23, wherein the period determination unit includes number decision unit, the number
Determination unit is configured as determining the number of the multiple predetermined period based on the amount for the resource transmitted for uplink.
28. device according to claim 23, wherein the period determination unit includes number decision unit, the number
Determination unit is configured as determining the number of the multiple predetermined period based on the amount of the resource for downlink transmission.
29. the device according to any one of claim 23 to 28, wherein the first period for sending the data
There are predetermined spaces between the second period for detecting the affirmative acknowledgement.
30. the device according to any one of claim 23 to 28, wherein the time span of the multiple predetermined period
It is arranged by ascending order.
31. device according to claim 23, wherein the transmission unit is configured as in the shared letter of physical down link
The data are sent on road.
32. device according to claim 23, wherein the detection unit is configured as physically line link control letter
The affirmative acknowledgement is detected on road.
33. device according to claim 23, wherein the user equipment is machine type communication user equipment.
34. a kind of device for data transmission, comprising:
Receiving unit is configured as repeatedly receiving data from base station；
Period determination unit is configured to determine that multiple predetermined periods, and the multiple predetermined period is separated by multiple, described
Multiple intervals are unequal；And
Transmission unit is configured as sending answering for the data to the base station during determining multiple predetermined periods
It answers.
35. device according to claim 34, wherein the multiple interval is arranged with the descending of time span.
36. device according to claim 34, wherein the last one predetermined period in the multiple predetermined period starts
After the data are received maximum receive number.
37. device according to claim 34, wherein the beginning of first predetermined period in the multiple predetermined period
Time interval between moment and the time of reception for the first time of the data is greater than predetermined threshold.
38. device according to claim 34, wherein the period determination unit includes number decision unit, the number
Determination unit is configured as determining the number of the multiple predetermined period based on the amount for the resource transmitted for uplink.
39. device according to claim 34, wherein the period determination unit includes number decision unit, the number
Determination unit is configured as determining the number of the multiple predetermined period based on the amount of the resource for downlink transmission.
40. the device according to any one of claim 34 to 39, wherein the first period for receiving the data
There are predetermined spaces between the second period for sending the response.
41. the device according to any one of claim 34 to 39, wherein the transmission unit includes that the first transmission is single
Member, first transmission unit are configured to respond to be correctly decoded the data received, the multiple predetermined
Affirmative acknowledgement is repeatedly sent in period during a predetermined period, transmission times is repeated and is arranged at any time with ascending order.
42. device according to claim 34, wherein the receiving unit is configured in physical down link
The data are received on shared channel.
43. device according to claim 34, wherein the transmission unit is configured to physically line link
The response is sent in control channel.
44. device according to claim 34, wherein described device is realized in machine type communication user equipment.
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| CN201410504582.7A CN105515735B (en) | 2014-09-26 | 2014-09-26 | Method and apparatus for data transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110268782B (en) * | 2016-12-23 | 2020-12-22 | 华为技术有限公司 | Enhanced machine type communication eMTC resource scheduling method and device |
| CN108737042B (en) * | 2017-04-18 | 2021-01-22 | 上海诺基亚贝尔股份有限公司 | Method and apparatus for data transmission in a wireless communication network |
| KR102633497B1 (en) | 2018-04-25 | 2024-02-05 | 베이징 시아오미 모바일 소프트웨어 컴퍼니 리미티드 | Information display and interpretation devices and methods, base stations and user equipment |
| CN111356243B (en) * | 2018-12-21 | 2023-08-11 | 中兴通讯股份有限公司 | Data transmission method and device, storage medium and electronic device |
| CN110312315A (en) * | 2019-04-19 | 2019-10-08 | 展讯通信（上海）有限公司 | A kind of information transferring method and device |
| CN113259064B (en) * | 2020-02-13 | 2022-07-15 | 中国移动通信有限公司研究院 | Data transmission method, device, terminal and storage medium |
| CN115175352A (en) * | 2021-04-01 | 2022-10-11 | 中兴通讯股份有限公司 | Feedback information transmission method, device, base station, terminal and storage medium |
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| CN101500259A (en) * | 2008-01-30 | 2009-08-05 | 大唐移动通信设备有限公司 | Method, system and apparatus for retransmitting data on high speed shared data channel |
| CN101651971A (en) * | 2009-09-15 | 2010-02-17 | 新邮通信设备有限公司 | Downlink switching method and system |
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