CN107294663A - HARQ feedback method, device and the method for reseptance of uplink - Google Patents
HARQ feedback method, device and the method for reseptance of uplink Download PDFInfo
- Publication number
- CN107294663A CN107294663A CN201610200831.2A CN201610200831A CN107294663A CN 107294663 A CN107294663 A CN 107294663A CN 201610200831 A CN201610200831 A CN 201610200831A CN 107294663 A CN107294663 A CN 107294663A
- Authority
- CN
- China
- Prior art keywords
- feedback
- subframe
- harq feedback
- user equipment
- current
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
Abstract
A kind of HARQ feedback method of uplink, device and method of reseptance, for base station, the HARQ feedback method of uplink includes：The data sent by current unauthorized cell monitoring users equipment；HARQ feedback is determined according to the result of monitoring；When failing to obtain the right to use of the current unauthorized cell in specified feedback subframe, in the feedback subframe, by other workable unauthorized cells the HARQ feedback is sent to the user equipment, or, after obtaining the right to use of the current unauthorized cell in the preset time period after the feedback subframe, the HARQ feedback is sent to the user equipment by the current unauthorized cell；Wherein, the feedback subframe represents that the user equipment sends the subframe of fixed time sequence position after the corresponding subframe of the data.The technical program realizes the HARQ feedback that uplink is carried out in unauthorized cell.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly to a kind of HARQ feedback method of uplink,
Device and method of reseptance.
Background technology
In existing Long Term Evolution (Long Term Evolution, LTE), evolved base station (evolved
Node B, eNB) by under Downlink Control Information (Downlink Control Information, DCI) scheduling
The transmission of row data and the transmission of upstream data.For the transmission of upstream data, base station can be under
Row control information form 0 (abbreviation DCI 0) sends uplink scheduling authorization (Uplink Grant).
In the prior art, in FDD (Frequency Division Duplex, FDD) LTE, user
Equipment (User Equipment, UE) is received in subframe n belongs to the DCI 0 of itself, knows uplink
Uplink scheduling authorization, information of the UE in subframe n+4 is according to uplink scheduling authorization enters line number in specified resource
According to transmission.The upstream data that base station parsing UE is sent, if it is possible to accurately receive upstream data, then base station
In physical mixed automatic re-transmission indicating channel (the Physical Hybrid ARQ Indicator of n+8 subframes
Channel, PHICH) on indicate confirm (Acknowledgement, ACK)；If can not accurately receive
Row data are not received by upstream data, then base station is indicated in the physical mixed autonomous retransmission of n+8 subframes
Negative acknowledge (Negative Acknowledgment, NACK) is indicated on channel.In time division duplex (Time
Division Duplex, TDD) in LTE, UE receives DCI 0 in subframe n, in subframe n+k (k>=4)
Carry out data transmission, in subframe n+k+i (i>=4) on receive PHICH.Usual LTE is deployed in operation
Mandate (Licensed) frequency spectrum that business possesses, but frequency spectrum resource is very rare, therefore start consideration and make full use of
Unauthorized (unlicensed) frequency spectrum, such as 5GHz frequency spectrum, it is necessary to adopt before using unlicensed spectrum
(Listen Before Talk, LBT) mechanism is said afterwards with first listening, and whether monitor there are other users to use unauthorized
Frequency spectrum, for example, wireless network WLAN uses unlicensed spectrum, represents channel busy, then needs
Treat；If channel idle, a period of time (such as most 4ms, in Japan can be used；Other countries
Allow the time used can be with longer)., it is necessary to discharge the frequency spectrum, Ran Houchong after the completion of this use
It is new to monitor the right to use for obtaining frequency spectrum next time.In unauthorized cell, (unlicensed SCell, that is, be located at UE
Serving cell on unlicensed frequency) Physical Uplink Shared Channel (Physical Uplink Shared
Channel, PUSCH) on send data after, base station need send PHICH, indicate mixed automatic retransfer
It is ACK/NACK to ask (Hybrid Automatic Repeat Request, HARQ) feedback information.If
Unauthorized cell is self scheduling (i.e. non-cross-carrier scheduling), and base station needs to send up in same cell
In the HARQ feedback information and PUSCH of transmission on scheduling authorization and PHICH, and PHICH
Data transfer has fixed sequential relationship.
But, the mechanism said afterwards due to first listening, base station possibly can not obtain unauthorized in specified feedback resources
The right to use of cell, it is impossible to be normally carried out downlink transfer in specified subframe using mandate cell, thus,
Base station will be unable to carry out HARQ feedback to UE transmitting uplink data in this case, to base station and
Communication between user equipment brings inconvenience.
The content of the invention
Present invention solves the technical problem that being how to realize the HARQ that uplink is carried out in unauthorized cell
Feedback.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of HARQ feedback side of uplink
Method, the HARQ feedback method of the uplink is used for base station, the HARQ feedback of the uplink
Method includes：The data sent by current unauthorized cell monitoring users equipment；According to the result of monitoring
Determine HARQ feedback；When failing to obtain the use of the current unauthorized cell in specified feedback subframe
Temporary, in the feedback subframe, sent by other workable unauthorized cells to the user equipment
The HARQ feedback, or, obtain in the preset time period after the feedback subframe it is described it is current not
After the right to use for authorizing cell, send described to the user equipment by the current unauthorized cell
HARQ feedback；Wherein, the feedback subframe represents that the user equipment sends the corresponding son of the data
The subframe of fixed time sequence position after frame.
Optionally, the current unauthorized cell is obtained in the preset time period after the feedback subframe
The right to use after, the HARQ feedback is sent to the user equipment by the current unauthorized cell
Including：The current unauthorized cell is obtained in the preset time period after the feedback subframe
After the right to use, the order of the multiple data sent according to the user equipment in multiple subframes, by described
Current unauthorized cell sends the HARQ feedback in response to the multiple data successively.
Optionally, the current unauthorized cell is obtained in the preset time period after the feedback subframe
The right to use after, the HARQ feedback is sent to the user equipment by the current unauthorized cell
Including：The current unauthorized cell is obtained in the preset time period after the feedback subframe
After the right to use, the order of the multiple data sent according to the user equipment passes through the current unauthorized
Cell sends the HARQ feedback by the way of feedback is merged, and the mode of the merging feedback is referred to
It will be responsive to send after at least one of HARQ feedback in the multiple data merges.
Optionally, when at least a portion in the multiple data is all received successfully, the HARQ is anti-
Present to confirm feedback.
Optionally, in the feedback subframe, set by other workable unauthorized cells to the user
Preparation send the HARQ feedback to include：When being communicated by the way of carrier aggregation with the user equipment,
It is determined that other workable described unauthorized cells, other described unauthorized cells and the current unauthorized
Cell is configured to give the user equipment；In the feedback subframe, by other described unauthorized cells to
The user equipment sends the HARQ feedback.
In order to solve the above technical problems, the embodiment of the invention also discloses a kind of HARQ of uplink is anti-
Device is presented, the HARQ feedback device of the uplink is used for base station, the HARQ of the uplink
Feedback device includes：Monitoring unit, suitable for the number sent by current unauthorized cell monitoring users equipment
According to；Determining unit, HARQ feedback is determined suitable for the result according to monitoring；Feedback unit, suitable for referring to
When fixed feedback subframe fails to obtain the right to use of the current unauthorized cell, in the feedback subframe,
By other workable unauthorized cells the HARQ feedback, Huo, are sent to the user equipment
After the right to use that the current unauthorized cell is obtained in preset time period after the feedback subframe, lead to
Cross the current unauthorized cell and send the HARQ feedback to the user equipment；Wherein, it is described anti-
Feedback subframe represents that the user equipment sends the subframe of fixed time sequence position after the corresponding subframe of the data.
Optionally, the feedback unit includes：First feedback subelement, suitable for it is described feedback subframe it
After the right to use that the current unauthorized cell is obtained in the preset time period afterwards, according to the user
The order for multiple data that equipment is sent in multiple subframes, is sent successively by the current unauthorized cell
In response to the HARQ feedback of the multiple data.
Optionally, the feedback unit includes：Second feedback subelement, suitable for it is described feedback subframe it
After the right to use that the current unauthorized cell is obtained in the preset time period afterwards, according to the user
The order for multiple data that equipment is sent, by way of the current unauthorized cell is using feedback is merged
The HARQ feedback is sent, the mode of the merging feedback refers to will be responsive in the multiple data
At least one of HARQ feedback merge after send.
Optionally, when at least a portion in the multiple data is all received successfully, the HARQ is anti-
Present to confirm feedback.
Optionally, the feedback unit includes：Unauthorized cell determination subelement, suitable for using carrier wave
When the mode of polymerization communicates with the user equipment, it is determined that other workable described unauthorized cells, institute
State other unauthorized cells configured to the user equipment with the current unauthorized cell；3rd feedback
Subelement, suitable in the feedback subframe, being sent out by other described unauthorized cells to the user equipment
Send the HARQ feedback.
The HARQ feedback method of reseptance of a kind of uplink, for user equipment, the HARQ of uplink
Feedback reception method includes：After sending data to base station by current unauthorized cell, worked as by described
Preceding unauthorized cell monitors HARQ feedback of the base station transmission in response to the data；When specified
When reception subframe fails to obtain the HARQ feedback from the base station by the current unauthorized cell,
In the reception subframe, the HARQ feedback is received by other unauthorized cells, or, connect described
Obtain described from the base station by the current unauthorized cell in preset time period after receipts subframe
HARQ feedback；Wherein, the subframe that receives sends the subframe of data in the presence of fixation with the user equipment
The subframe of timing position.
Optionally, the current unauthorized cell is passed through in the preset time period after the reception subframe
Obtaining the HARQ feedback from the base station includes：When the user equipment multiple subframes send it is many
When individual data do not receive the corresponding HARQ feedback, the user equipment is in reception
Frame receives the base station in response in the HARQ feedback of the multiple data.
Compared with prior art, the technical scheme of the embodiment of the present invention has the advantages that：
The data that the base station of the present embodiment is sent by current unauthorized cell monitoring users equipment；According to prison
The result listened determines HARQ feedback；It is small when failing the acquisition current unauthorized in specified feedback subframe
During the right to use in area, in the feedback subframe, by other workable unauthorized cells to the user
Equipment sends the HARQ feedback, or, obtains institute in the preset time period after the feedback subframe
After the right to use for stating current unauthorized cell, sent out by the current unauthorized cell to the user equipment
Send the HARQ feedback；Wherein, the feedback subframe represents that the user equipment sends the data pair
The subframe of fixed time sequence position after the subframe answered.Used by other workable unauthorized cells to described
Family equipment sends the HARQ feedback, or, is obtained in the preset time period after the feedback subframe
The HARQ feedback is sent after the right to use of the current unauthorized cell, base station is realized in unauthorized
Cell carries out the HARQ feedback of normal upstream transmission, so as to ensure that between base station and user equipment not
Intermittently communicating.
Further, base station obtained in the preset time period after the feedback subframe it is described it is current not
After the right to use for authorizing cell, the order of the multiple data sent according to the user equipment in multiple subframes,
Send the HARQ feedback in response to the multiple data successively by the current unauthorized cell；
Base station obtains making for the current unauthorized cell in the preset time period after the feedback subframe
After power, the order of the multiple data sent according to the user equipment is small by the current unauthorized
Area sends the HARQ feedback by the way of feedback is merged, the mode of the merging feedback refer to by
Sent after merging in response at least one of HARQ feedback in the multiple data.It is pre- by configuring
If the period, once obtain in the right to use of current unauthorized cell, the data sent according to user equipment
Multiple orders for sending subframes, successively or merge and send the HARQ feedback, further ensure base station
Uninterrupted communication between user equipment.
Further, when being communicated by the way of carrier aggregation with the user equipment, it is determined that workable
Other described unauthorized cells, other described unauthorized cells with the current unauthorized cell is configured gives
The user equipment.Different unauthorized carrier waves sends the HARQ feedback during by using carrier aggregation,
The HARQ feedback that base station carries out normal upstream transmission in unauthorized cell is realized, base is further ensured
The uninterrupted communication stood between user equipment.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the HARQ feedback method of uplink of the embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of the HARQ feedback method of uplink of the embodiment of the present invention；
Fig. 3 is the schematic diagram of the HARQ feedback method of another uplink of the embodiment of the present invention；
Fig. 4 is a kind of structural representation of the HARQ feedback device of uplink of the embodiment of the present invention.
Embodiment
As described in the background art, in the prior art due to first listening the mechanism said afterwards, base station possibly can not be
Feedback resources are specified to obtain the right to use of unauthorized cell, it is impossible to using unauthorized cell in specified subframe
Downlink transfer is normally carried out, thus, base station will be unable to enter UE transmitting uplink data in this case
Row HARQ feedback, brings inconvenience to the communication between base station and user equipment.
Physical mixed automatic re-transmission indicating channel (the Physical Hybrid ARQ of the embodiment of the present invention
Indicator Channel, PHICH) transmission can come tissue, 1 PHICH in the form of PHICH groups
Multiple PHICH channel occupancies identical time-frequency domain physical resources in group, using answering for orthogonal spreading sequence
Identical time-frequency domain physical resource is taken with mode.For example, at normal cyclic prefix (Cyclic Prefix, CP)
When, the multiplexing of PHICH groups 8 PHICH channels, i.e. a base station can indicate that its is up to 8 UE
The ACK/NACK (it is assumed that a UE only transmits a transmission block) of transmission.PHICH channels are by PHICH
Mark is together decided in the mark and group of group.UE is by transmitting the Physical Resource Block shared by upstream data
Position (the minimums of the UE in first slot transmission upstream data of (Physical Resource Block, PRB)
The index of Physical Resource Block) and demodulation reference signal (DeModulation Reference Signal,
DMRS) index determines to identify in the mark and group of PHICH groups.
Specifically, it is determined that the formula of mark can be in the mark and group of PHICH groups：
Wherein,Represent the mark of PHICH groups；Represent to identify in PHICH groups；
IlowestRepresent that UE is indexed in minimal physical resource block used in first time slot uplink；nDMRSTable
Show the cyclic shift (Cyclic Shift) of DMRS used in UE；Represent the number of PHICH groups
Mesh；Represent spreading factor (spreading factor size used for PHICH during PHICH modulation
Modulation size).
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings
The specific embodiment of the present invention is described in detail.
Fig. 1 is a kind of flow chart of the HARQ feedback method of uplink of the embodiment of the present invention, this method
In the communication system that such as LTE system can be used in.With reference to Fig. 1 to the uplink
The specific embodiment of HARQ feedback method is described in detail.
Step S101：The data that base station is sent by current unauthorized cell monitoring users equipment.
In specific implementation, user equipment (User Equipment, UE) is according to the descending of current unauthorized cell
Control information (Downlink Control Information, DCI) obtains the up tune in the unauthorized cell
After degree is authorized, pass through current unauthorized cell physically ink Shared Channel (Physical Uplink
Shared Channel, PUSCH) on send data, the data of transmission can include control information and to be transmitted
Upstream data.According to existing protocol, mixed automatic re-transmission indicating channel (Physical Hybrid ARQ
Indicator Channel, PHICH) the transmission for sending carrier wave and the corresponding DCI information of transmission uplink authorization
Carrier wave must be same.Therefore the data that base station is sent by current unauthorized cell monitoring users equipment.
Before step S101, UE is in connection status by mandate (Licensed) frequency access base station,
UE has a main plot in Licensed frequencies, UE from the main plot reception system message, beep-page message with
And wireless heterogeneous networks (Radio Resource Control, RRC) message.Due to there is a large number of services transmission
Demand, base station by RRC information be UE be configured with unauthorized cell, base station passes through carrier aggregation
Mode is communicated with UE, it is herein assumed that base station is configured with multiple unauthorized cells for UE and (is located at
Cell in unlicensed frequencies), each unauthorized cell includes upstream frequency and downstream frequency.
It is understood that in carrier aggregation in LTE, serving cell (SCell) correspondence one
Individual component carrier (Component Carrier), thus, current unauthorized cell is unauthorized carrier frequency
On one-component carrier wave.
Step S102：HARQ feedback is determined according to the result of monitoring.
In specific implementation, snoop results are obtained through step S101, the result based on monitoring determines that HARQ is anti-
Feedback.Specifically, HARQ feedback includes validating that feedback (Acknowledgement, ACK) and negative feedback
(Negative Acknowledgment,NACK).If the upstream data of UE transmissions can be received accurately,
HARQ feedback is determined to confirm to feed back；If can not accurately receive the upstream data of UE transmissions or not have
The upstream data of UE transmissions is received, it is negative feedback to determine HARQ feedback.
In specific implementation, when in specified feedback subframe, (feedback subframe represents that the user equipment sends institute
State the subframe of fixed time sequence position after the corresponding subframe of data) the current unauthorized cell can be obtained
The right to use when, then in specified feedback subframe can send what is determined by the current unauthorized cell
HARQ feedback, feedback subframe represents user equipment fixed time sequence position after the data are sent
Subframe.For example, UE subframe n send data, then FDD (Frequency Division Duplex,
FDD) in LTE, subframe n+4 is feedback subframe；Time division duplex (Time Division Duplex,
TDD) in LTE, subframe n+i (i>=4) for feedback subframe.
When failing to obtain the right to use of the current unauthorized cell in specified feedback subframe, under
State the mode that step S103 determines HARQ feedback.
Step S103：When failing to obtain the right to use of the current unauthorized cell in specified feedback subframe
When, in the feedback subframe, institute is sent to the user equipment by other workable unauthorized cells
State HARQ feedback, or, obtain in the preset time period after the feedback subframe and described not award currently
After the right to use for weighing cell, send described to the user equipment by the current unauthorized cell
HARQ feedback.
In specific implementation, when being communicated by the way of carrier aggregation with the user equipment, pass through LBT
It is determined that other workable described unauthorized cells, other described unauthorized cells and the current unauthorized
Cell has been allocated to the user equipment by RRC signaling.In the feedback subframe, by that can make
Other unauthorized cells send the HARQ feedback to the user equipment.
For example, can refer to Fig. 2, Fig. 2 is a kind of HARQ feedback side of uplink of the embodiment of the present invention
The schematic diagram of method.
As shown in Fig. 2 UE can configure multiple descending unauthorized cell LAA SCell1 and LAA SCell
2, in this case, base station can be communicated with UE by the way of carrier aggregation.Using not awarding
Power frequency spectrum (or frequency) is referred to as authorizing frequency spectrum auxiliary access (Licensed Assisted Access, LAA) skill
Art, unauthorized frequency range, i.e. UE can be used first by awarding by the technology LTE network for UE configurations
Frequency spectrum access network is weighed, network configures unlicensed spectrum by way of carrier aggregation for UE.Based on carrier wave
The framework of polymerization, some authorizes frequency range carrier wave as main plot (PCell), and unauthorized frequency range carrier wave is as auxiliary
Cell (SCell), while in order to ensure the technology co-existence with other in unauthorized band operation, can use
The channel competition access mechanism of listem-before-talk (Listen-Before-Talk).
In specific implementation, UE by current unauthorized cell LAASCell1 receive uplink (uplink,
UL mandate scheduling), after transmission subframe 1 have sent upstream data, wherein, UE sends data
Subframe is referred to as sending subframe, then UE expects to pass through current unauthorized cell LAA SCell1 in feedback subframe 5
Receive HARQ feedback.Due to the channel competition access mechanism using LBT, current unauthorized cell LAA
When SCell1 is taken by other equipment, base station can not obtain current unauthorized cell LAA in feedback subframe 5
The SCell1 right to use, but can obtain other unauthorizeds cell LAA SCell2 institutes in feedback subframe 5
The right to use of respective frequencies, thus, base station is by other unauthorizeds cell LAA SCell2 in feedback subframe
5 couples of UE uplink carries out HARQ feedback.
With continued reference to Fig. 2, UE is have sent in transmission subframe 1 after upstream data, is expected in feedback subframe
5 receive feedback signal.UE monitors do not have in current unauthorized cell LAA SCell1 feedback subframe 5
Downstream signal is sent, and has transmission downstream signal in other unauthorizeds cell LAA SCell2 subframe 5,
Then base station is carried out by other unauthorizeds cell LAA SCell2 in subframe 5 to UE uplink
HARQ feedback, UE receives it by other unauthorizeds cell LAA SCell2 and sent in transmission subframe 1
The HARQ feedback of data.Now UE needs to detect the PHICH channels on LAA SCell2, then
Determine that oneself reception HARQ is anti-in the physical resource block message that subframe 1 is transmitted shared by data according to oneself
The PHICH channels (being identified in the mark and group of PHICH groups) of feedback.
With continued reference to step S103, in specific implementation, when failing in specified feedback subframe, acquisition is described to work as
During the right to use of preceding unauthorized cell, institute is obtained in the preset time period after the feedback subframe
After the right to use for stating current unauthorized cell, according to the user equipment in the current many height of unauthorized cell
Frame sends the order of multiple data, is sent successively in response to the multiple by the current unauthorized cell
The HARQ feedback of data.
For example, when being communicated by the way of carrier aggregation with the user equipment, UE passes through in subframe n
Current unauthorized cell is sent on PUSCH after data, and base station needs to exist by current unauthorized cell
Subframe n+4 sends the HARQ feedback determined.Due to using LBT channel competition access mechanism, currently
When unauthorized cell is taken by other equipment, base station can not obtain current unauthorized cell pair in subframe n+4
The right to use of frequency is answered, then can not send HARQ feedback in subframe n+4.Thus, base station can be pre-
If in the delayed scope of period, the data transfer to the UE is fed back.Specifically, in preset time
In section, current unauthorized cell is persistently monitored, once the right to use of the current unauthorized cell is obtained,
The order of multiple data is sent in the multiple subframes of current unauthorized cell according to the user equipment, passes through institute
State current unauthorized cell and send HARQ feedback in response to the multiple data successively.And UE can be with
Since continuing to monitor the downstream signal that base station may be sent in the preset time period subframe n+4, so as to
Therefrom obtain HARQ feedback.
It is understood that after the preset time period after the feedback subframe, base station still can not be obtained
The right to use of current unauthorized cell respective frequencies is obtained, then acquiescence HARQ feedback can be set.Acquiescence
HARQ feedback can confirm feedback or negative feedback.That is, in feedback
After preset time period after frame, UE does not receive the HARQ feedback of base station transmission, and UE then gives tacit consent to
HARQ feedback is fed back for confirmation, or UE then gives tacit consent to HARQ feedback for negative feedback.
It should be noted that the preset time period can be preset by agreement, it can also be led to by base station
Cross radio resource control signaling (Radio Resource Control, RRC) and notify UE.
With continued reference to step S103, in specific implementation, (need to send and feed back when in specified feedback subframe
Subframe) when failing to obtain the right to use of the current unauthorized cell, after the feedback subframe
After the right to use that the current unauthorized cell is obtained in the preset time period, according to the user equipment
The order of data is sent, it is described using being sent by way of merging feedback the current unauthorized cell
HARQ feedback, the mode of the merging feedback refers to that will be responsive to UE sends number in multiple subframes
According at least one of HARQ feedback merge after sent in a sub- frame in UE.Specifically,
, can be with the PHICH of same subframe when the HARQ feedback is sent by the way of merging feedback
UE is fed back in the upstream data that multiple subframes are sent.
In specific implementation, in response at least a portion of the UE upstream datas sent in multiple subframes
The HARQ feedback can be determined in the following way：If UE is sent in multiple subframes
Upstream data by base station all receives successfully, then the HARQ feedback be ACK, that is, employ "AND"
Mechanism determine HARQ feedback；If wherein there is a data not receive success, the HARQ
It is fed back to NACK.By this method, UE can be fed back using less feedback resources in many height
The data transfer that frame is carried out.When merging feedback, other feedback systems can also be taken, i.e., in feedback,
Base station can be that UE divides multiple PHICH channels in the uplink of multiple subframes on PHICH,
UE determines the PHICH channels (mark of PHICH groups corresponding to first uplink according to current mechanism
Know and the interior mark of group), for the feedback of follow-up uplink, what UE can Jia 1 according to mark in group
Mode determines PHICH channels successively, if without remaining PHICH channels, UE and under in group
One PHICH group determines PHICH resource；Corresponding base station also determines PHICH using similar method
The corresponding relation of feedback, such UE can correctly receive merging feedback.
For example, can refer to Fig. 3, Fig. 3 is the HARQ feedback of another uplink of the embodiment of the present invention
The schematic diagram of method.The mode for merging feedback is described in detail referring to Fig. 3.
As shown in figure 3, UE receives uplink (uplink, UL) scheduling by current unauthorized cell,
After transmission subframe 1, transmission subframe 2 and transmission subframe 3 have sent upstream data, base station is needed anti-
Subframe 5, feedback subframe 6 and feedback subframe 7 is presented UE is being sent subframe 1, sending the and of subframe 2 respectively
Send the transmission data of subframe 3 and send HARQ feedback.Due to the channel competition access mechanism using LBT,
Current unauthorized cell is when feedback subframe 5 is taken by other equipment, and base station can not obtain current unauthorized
The right to use of cell.If base station obtains the right to use of current unauthorized cell in subframe 6, now base station
One subframe of feedback delay is may determine that, therefore, it can sending subframe 1 to UE in feedback subframe 6
Data progress HARQ feedback is sent with subframe 2 is sent；Subframe 3 is being sent to UE in feedback subframe 7
Data carry out HARQ feedback.
In specific implementation, UE is desirable to receive the HARQ feedback that base station is sent, UE in feedback subframe 5
Specific reference signal of cell etc. whether can be sent by base station to judge whether base station sends downstream signal.
If UE is not received by the downstream signal of base station transmission in feedback subframe 5, UE is in feedback subframe 6
Continue to detect whether base station sends downstream signal, once detecting downstream signal, UE can be determined that base station meeting
The HARQ feedback of formula is merged in the data that subframe 1 and subframe 2 are sent to it in the subframe.
It is understood that will be responsive at least one of HARQ that UE sends data in multiple subframes
Feedback merges, and can postpone minimum principle based on feedback time.That is, base station is in present sub-frame
When obtaining the right to use of current unauthorized cell, except being carried out in response to UE in the transmission data of correspondence subframe
HARQ feedback, it is if there is the HARQ feedback do not fed back, then in present sub-frame that multiple HARQ are anti-
Feedback is merged, and is sent in the lump to UE.
In the present embodiment, the PHICH resource sent corresponding to upstream data is also predefined in UE, so as to just
Really know ACK or nack message.For example, UE is by transmitting the physical resource shared by upstream data
The position (indexes of the UE in the minimal physical resource block of first slot transmission upstream data) of block and solution
The reference signal index of tune determines to identify in the mark and group of PHICH groups, and then determines PHICH channels.
Specifically, can be by determining UE for sending the HARQ feedback by the way of feedback is merged
It is right in the PHICH channels (being identified in the marks of PHICH groups and group) corresponding to first uplink
In the feedback of follow-up uplink, UE can determine PHICH successively in the way of mark in group Jia 1
Channel, if determining PHICH without remaining PHICH, UE and in next PHICH groups in group
Resource；Corresponding base station also determines the corresponding relation of PHICH feedbacks, such UE using similar method
Merging feedback can correctly be received.
Fig. 4 is a kind of structural representation of the HARQ feedback device of uplink of the embodiment of the present invention.Under
Face is described in detail with reference to Fig. 4 to the specific embodiment of the HARQ feedback device of the uplink.
Fig. 4 is refer to, the HARQ feedback device of the uplink includes：Monitoring unit 401, determination
Unit 402 and feedback unit 403.Wherein, feedback unit 403 includes the first feedback subelement 404, the
Two feedback subelements 405, the feedback subelement 407 of unauthorized cell determination subelement 406 and the 3rd.
Wherein, monitoring unit 401 is suitable to the data sent by current unauthorized cell monitoring users equipment；
Determining unit 402 is suitable to determine HARQ feedback according to the result of monitoring；Feedback unit 403 is suitable to referring to
When fixed feedback subframe fails to obtain the right to use of the current unauthorized cell, in the feedback subframe,
By other workable unauthorized cells the HARQ feedback, Huo, are sent to the user equipment
After the right to use that the current unauthorized cell is obtained in preset time period after the feedback subframe, lead to
Cross the current unauthorized cell and send the HARQ feedback to the user equipment.Specifically, it is described
Feedback subframe represents that the user equipment sends the son of fixed time sequence position after the corresponding subframe of the data
Frame.
In specific implementation, the first feedback subelement 404 is suitable to described default after the feedback subframe
After the right to use that the current unauthorized cell is obtained in period, according to the user equipment in many height
The order for multiple data that frame is sent, is sent in response to described many successively by the current unauthorized cell
The HARQ feedback of individual data.
It is understood that after the preset time period after the feedback subframe, base station still can not be obtained
The right to use of current unauthorized cell respective frequencies is obtained, then acquiescence HARQ feedback can be set.Acquiescence
HARQ feedback can confirm feedback or negative feedback.That is, in feedback
After preset time period after frame, UE does not receive the HARQ feedback of base station transmission, and UE then gives tacit consent to
HARQ feedback is fed back for confirmation, or UE then gives tacit consent to HARQ feedback for negative feedback.
In specific implementation, the second feedback subelement 405 is suitable to described default after the feedback subframe
After the right to use that the current unauthorized cell is obtained in period, at least one in the multiple data
Divide the order of the multiple data sent according to the user equipment, pass through the current unauthorized cell and use
The mode for merging feedback sends the HARQ feedback, and the mode of the merging feedback refers to will be responsive to
At least one of HARQ feedback in the multiple data is sent after merging.Specifically, it is the multiple
When at least a portion in data is all received successfully, the HARQ feedback is fed back for confirmation.Specifically,
It can enter in the following way in response at least one of HARQ feedback in the multiple data
Row is determined：The data that at least a portion in multiple transmission subframes sends subframe transmission are all received successfully,
Then the HARQ feedback is ACK；At least a portion in multiple transmission subframes is sent in subframe, as long as
The data for having the transmission of a transmission subframe do not receive success, then the HARQ feedback is NACK.
It should be noted that multiple at least a portion sent in subframe are corresponding to send subframe in time
It is continuous.
It should be noted that the preset time period can be preset by agreement, it can also be led to by base station
Cross radio resource control signaling (Radio Resource Control, RRC) and notify UE.
In specific implementation, unauthorized cell determination subelement 406 be suitable to using carrier aggregation by the way of and
During the user equipment communication, it is determined that other workable described unauthorized cells, other described unauthorizeds
Cell is configured to the user equipment with the current unauthorized cell；3rd feedback subelement 407 exists
The feedback subframe, it is anti-to the user equipment transmission HARQ by other described unauthorized cells
Feedback.
The embodiment of the embodiment of the present invention can refer to foregoing corresponding embodiment, and here is omitted.
The embodiment of the invention also discloses a kind of HARQ feedback method of reseptance of uplink, for user
Equipment, the HARQ feedback method of reseptance of uplink includes：Sent out by current unauthorized cell to base station
Send after data, the base station is monitored by the current unauthorized cell and sent in response to the data
HARQ feedback；Fail when in specified reception subframe by the current unauthorized cell from the base station
When obtaining the HARQ feedback, in the reception subframe, receive described by other unauthorized cells
HARQ feedback, or, pass through the current unauthorized in the preset time period after the reception subframe
Cell obtains the HARQ feedback from the base station；Wherein, the reception subframe and the user equipment
There is the subframe of fixed time sequence position in the subframe for sending data.
In specific implementation, the current unauthorized is passed through in the preset time period after the reception subframe
Cell obtains the HARQ feedback from the base station to be included：When the user equipment is sent in multiple subframes
Multiple data when not receiving the corresponding HARQ feedback, the user equipment connects described in one
Receive subframe and receive the base station in response in the HARQ feedback of the multiple data.
The embodiment of the embodiment of the present invention can refer to foregoing corresponding embodiment, and here is omitted.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment
Rapid to can be by program to instruct the hardware of correlation to complete, the program can be stored in can with computer
Read in storage medium, storage medium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, it can make various changes or modifications, therefore the guarantor of the present invention
Shield scope should be defined by claim limited range.
Claims (12)
1. a kind of HARQ feedback method of uplink, for base station, it is characterised in that including：
The data sent by current unauthorized cell monitoring users equipment；
HARQ feedback is determined according to the result of monitoring；
When failing to obtain the right to use of the current unauthorized cell in specified feedback subframe, described anti-
Subframe is presented, it is anti-to the user equipment transmission HARQ by other workable unauthorized cells
Feedback, or, obtain the current unauthorized cell in the preset time period after the feedback subframe
After the right to use, the HARQ feedback is sent to the user equipment by the current unauthorized cell；
Wherein, the feedback subframe represents that the user equipment is fixed after sending the corresponding subframe of the data
The subframe of timing position.
2. HARQ feedback method according to claim 1, it is characterised in that the feedback subframe it
After the right to use that the current unauthorized cell is obtained in rear preset time period, by it is described it is current not
Authorizing cell to send the HARQ feedback to the user equipment includes：
The use of the current unauthorized cell is obtained in the preset time period after the feedback subframe
Quan Hou, the order of the multiple data sent according to the user equipment in multiple subframes is worked as by described
Preceding unauthorized cell sends the HARQ feedback in response to the multiple data successively.
3. HARQ feedback method according to claim 1, it is characterised in that the feedback subframe it
After the right to use that the current unauthorized cell is obtained in rear preset time period, by it is described it is current not
Authorizing cell to send the HARQ feedback to the user equipment includes：
The use of the current unauthorized cell is obtained in the preset time period after the feedback subframe
Quan Hou, the order of the multiple data sent according to the user equipment is small by the current unauthorized
Area sends the HARQ feedback by the way of feedback is merged, and the mode of the merging feedback is referred to
It will be responsive to send after at least one of HARQ feedback in the multiple data merges.
4. HARQ feedback method according to claim 3, it is characterised in that in the multiple data
When at least a portion is all received successfully, the HARQ feedback is fed back for confirmation.
5. HARQ feedback method according to claim 1, it is characterised in that in the feedback subframe,
Sending the HARQ feedback to the user equipment by other workable unauthorized cells includes：
When being communicated by the way of carrier aggregation with the user equipment, it is determined that workable described other are not awarded
Weigh cell, other described unauthorized cells with the current unauthorized cell is configured is set to the user
It is standby；
In the feedback subframe, send described to the user equipment by other described unauthorized cells
HARQ feedback.
6. the HARQ feedback device of a kind of uplink, for base station, it is characterised in that including：
Monitoring unit, suitable for the data sent by current unauthorized cell monitoring users equipment；
Determining unit, HARQ feedback is determined suitable for the result according to monitoring；
Feedback unit, suitable for failing to obtain the right to use of the current unauthorized cell in specified feedback subframe
When, in the feedback subframe, sent by other workable unauthorized cells to the user equipment
The HARQ feedback, or, obtain described current in the preset time period after the feedback subframe
After the right to use of unauthorized cell, institute is sent to the user equipment by the current unauthorized cell
State HARQ feedback；
Wherein, the feedback subframe represents that the user equipment is fixed after sending the corresponding subframe of the data
The subframe of timing position.
7. HARQ feedback device according to claim 6, it is characterised in that the feedback unit includes：
First feedback subelement, suitable for obtaining described in the preset time period after the feedback subframe
After the right to use of current unauthorized cell, many numbers sent according to the user equipment in multiple subframes
According to order, sent successively in response to described in the multiple data by the current unauthorized cell
HARQ feedback.
8. HARQ feedback device according to claim 6, it is characterised in that the feedback unit includes：
Second feedback subelement, suitable for obtaining described in the preset time period after the feedback subframe
After the right to use of current unauthorized cell, at least a portion in the multiple data is according to the user
The order for multiple data that equipment is sent, by the current unauthorized cell using the side for merging feedback
Formula sends the HARQ feedback, and the mode of the merging feedback refers to will be responsive to the multiple number
At least one of HARQ feedback in is sent after merging.
9. HARQ feedback device according to claim 8, it is characterised in that in the multiple data
When at least a portion is all received successfully, the HARQ feedback is fed back for confirmation.
10. HARQ feedback device according to claim 6, it is characterised in that the feedback unit includes：
Unauthorized cell determination subelement, suitable for being communicated by the way of carrier aggregation with the user equipment
When, it is determined that other workable described unauthorized cells, other described unauthorized cells with it is described current
Unauthorized cell is configured to give the user equipment；
3rd feedback subelement, suitable in the feedback subframe, by other described unauthorized cells to described
User equipment sends the HARQ feedback.
11. the HARQ feedback method of reseptance of a kind of uplink, for user equipment, it is characterised in that including：
After sending data to base station by current unauthorized cell, monitored by the current unauthorized cell
The base station sends the HARQ feedback in response to the data；
When failing to obtain described from the base station by the current unauthorized cell in specified reception subframe
During HARQ feedback, in the reception subframe, the HARQ is received by other unauthorized cells anti-
Feedback, or, it is described reception subframe after preset time period in by the current unauthorized cell from
The base station obtains the HARQ feedback；
Wherein, there is fixed time sequence position in the subframe for receiving subframe and user equipment transmission data
Subframe.
12. the HARQ feedback method of reseptance of uplink according to claim 11, it is characterised in that
By the current unauthorized cell from the base station in the preset time period after the reception subframe
Obtaining the HARQ feedback includes：
When the user equipment, in multiple data that multiple subframes are sent not receive the corresponding HARQ anti-
During feedback, the user equipment receives the base station in response in the multiple number in a subframe that receives
According to the HARQ feedback.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610200831.2A CN107294663B (en) | 2016-03-31 | 2016-03-31 | HARQ feedback method, device and receiving method for uplink transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610200831.2A CN107294663B (en) | 2016-03-31 | 2016-03-31 | HARQ feedback method, device and receiving method for uplink transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107294663A true CN107294663A (en) | 2017-10-24 |
| CN107294663B CN107294663B (en) | 2020-07-21 |
Family
ID=60087448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610200831.2A Active CN107294663B (en) | 2016-03-31 | 2016-03-31 | HARQ feedback method, device and receiving method for uplink transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107294663B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635868A (en) * | 2018-06-21 | 2019-12-31 | 维沃移动通信有限公司 | HARQ-ACK processing method and device for hybrid automatic repeat request feedback information |
| CN110650536A (en) * | 2018-06-26 | 2020-01-03 | 珠海市魅族科技有限公司 | Method for indicating reception of acknowledgement message frame and method for receiving acknowledgement message frame |
| CN111262670A (en) * | 2019-01-11 | 2020-06-09 | 维沃移动通信有限公司 | Hybrid automatic repeat acknowledgement feedback information transmission method and terminal equipment |
| CN111316587A (en) * | 2018-03-28 | 2020-06-19 | 华为技术有限公司 | Hybrid automatic repeat request method, network equipment and terminal |
| CN111757392A (en) * | 2018-01-24 | 2020-10-09 | Oppo广东移动通信有限公司 | Data transmission method, apparatus, computer program and carrier therefor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101657986A (en) * | 2007-04-13 | 2010-02-24 | 高通股份有限公司 | adaptive synchronous harq transmission |
| CN102281131A (en) * | 2010-06-13 | 2011-12-14 | 电信科学技术研究院 | Information configuration and feedback method in a multicarrier system, system thereof and equipment thereof |
| CN102870366A (en) * | 2010-04-30 | 2013-01-09 | 捷讯研究有限公司 | System and method for uplink control information transmission in carrier aggregation |
| CN104283653A (en) * | 2013-07-11 | 2015-01-14 | 普天信息技术研究院有限公司 | Transmission feedback method |
| US20150049708A1 (en) * | 2013-08-13 | 2015-02-19 | Qualcomm Incorporated | Harq design for lte in unlicensed spectrum utilizing individual ack/nack |
| CN104812032A (en) * | 2015-04-10 | 2015-07-29 | 宇龙计算机通信科技(深圳)有限公司 | Method and device for using DRX in non-authorized frequency band |
| CN104901775A (en) * | 2014-03-09 | 2015-09-09 | 上海朗帛通信技术有限公司 | Method and device for communicating on unauthorized frequency spectrum |
-
2016
- 2016-03-31 CN CN201610200831.2A patent/CN107294663B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101657986A (en) * | 2007-04-13 | 2010-02-24 | 高通股份有限公司 | adaptive synchronous harq transmission |
| CN102870366A (en) * | 2010-04-30 | 2013-01-09 | 捷讯研究有限公司 | System and method for uplink control information transmission in carrier aggregation |
| CN102281131A (en) * | 2010-06-13 | 2011-12-14 | 电信科学技术研究院 | Information configuration and feedback method in a multicarrier system, system thereof and equipment thereof |
| CN104283653A (en) * | 2013-07-11 | 2015-01-14 | 普天信息技术研究院有限公司 | Transmission feedback method |
| US20150049708A1 (en) * | 2013-08-13 | 2015-02-19 | Qualcomm Incorporated | Harq design for lte in unlicensed spectrum utilizing individual ack/nack |
| CN104901775A (en) * | 2014-03-09 | 2015-09-09 | 上海朗帛通信技术有限公司 | Method and device for communicating on unauthorized frequency spectrum |
| CN104812032A (en) * | 2015-04-10 | 2015-07-29 | 宇龙计算机通信科技(深圳)有限公司 | Method and device for using DRX in non-authorized frequency band |
Non-Patent Citations (1)
| Title |
|---|
| CMCC: "Discussion on HARQ transmission for LAA", 《3GPP》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111757392A (en) * | 2018-01-24 | 2020-10-09 | Oppo广东移动通信有限公司 | Data transmission method, apparatus, computer program and carrier therefor |
| CN111757392B (en) * | 2018-01-24 | 2023-09-26 | Oppo广东移动通信有限公司 | Data transmission method, device, computer program and carrier thereof |
| US11812441B2 (en) | 2018-01-24 | 2023-11-07 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Data transmission method, device, computer program and carrier thereof |
| CN111316587A (en) * | 2018-03-28 | 2020-06-19 | 华为技术有限公司 | Hybrid automatic repeat request method, network equipment and terminal |
| CN110635868A (en) * | 2018-06-21 | 2019-12-31 | 维沃移动通信有限公司 | HARQ-ACK processing method and device for hybrid automatic repeat request feedback information |
| CN110650536A (en) * | 2018-06-26 | 2020-01-03 | 珠海市魅族科技有限公司 | Method for indicating reception of acknowledgement message frame and method for receiving acknowledgement message frame |
| CN111262670A (en) * | 2019-01-11 | 2020-06-09 | 维沃移动通信有限公司 | Hybrid automatic repeat acknowledgement feedback information transmission method and terminal equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107294663B (en) | 2020-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11234237B2 (en) | Method and apparatus of handling time gap for sidelink hybrid automatic request (HARQ) in network scheduling mode in a wireless communication system | |
| US11729843B2 (en) | Method and apparatus of handling device-to-device resource selection with consideration on discontinuous reception operation in a wireless communication system | |
| JP6940914B2 (en) | Uplink Control Signaling for FDD-TDD Joint Carrier Aggregation | |
| CN107567718B (en) | Method and apparatus for performing and reporting measurement by user equipment configured with multiple carriers in mobile communication system | |
| WO2018202032A1 (en) | Data transmission method and apparatus, storage medium and processor | |
| US20220159435A1 (en) | Communication system | |
| US9537616B2 (en) | Systems and methods for subframe offset | |
| US9749094B2 (en) | Devices for sending and receiving feedback information | |
| US20220086803A1 (en) | Method and apparatus of handling inter-device coordination for sidelink communication in a wireless communication system | |
| US20150326354A1 (en) | Method for processing feedback information, base station, and user equipment | |
| EP3745630B1 (en) | Method and apparatus | |
| EP2688237A2 (en) | Method and device for transmitting ack/nack in wireless communication system | |
| CN104010368B (en) | TDD configures update method, apparatus and system | |
| WO2014067140A1 (en) | Information transmission method, user equipment and base station | |
| WO2014179958A1 (en) | Method, apparatus and computer program for wireless communications | |
| TW201412166A (en) | Method and apparatus | |
| CN107294663A (en) | HARQ feedback method, device and the method for reseptance of uplink | |
| WO2016065620A1 (en) | Method and apparatus for acquiring hybrid automatic retransmission feedback, and communication system | |
| CN107295677B (en) | Feedback method and device for performing idle channel assessment | |
| US11924876B2 (en) | Method and apparatus of handling partial sensing and discontinuous reception for sidelink communication in a wireless communication system | |
| US20220400469A1 (en) | Method and apparatus of handling partial sensing for sidelink communication in a wireless communication system | |
| CN105207757A (en) | Carrier aggregation method and apparatus of communication system | |
| JP2017501594A (en) | Inter-system carrier aggregation method in advanced wireless communication system | |
| WO2018058679A1 (en) | Multi-carrier data transmission method and apparatus | |
| CN107483164B (en) | Merge method, apparatus, base station and the user equipment of feedback |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Han Chuanhua Inventor before: Han Chuanhua Inventor before: Deng Yun |