CN107734671A - The HARQ feedback method of user equipment and downlink data - Google Patents
The HARQ feedback method of user equipment and downlink data Download PDFInfo
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- CN107734671A CN107734671A CN201610664504.2A CN201610664504A CN107734671A CN 107734671 A CN107734671 A CN 107734671A CN 201610664504 A CN201610664504 A CN 201610664504A CN 107734671 A CN107734671 A CN 107734671A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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Abstract
The HARQ feedback method of user equipment and downlink data, methods described include：Receive the downlink data that base station is sent in subframe n PDSCH；The information of PUCCH resource offset corresponding to acquisition, and corresponding PUCCH resource index is calculated；Using in subframe n+M with the corresponding PUCCH resource of PUCCH resource index being calculated, to the HARQ information of subframe n downlink data described in base station feedback；M is feedback interval number of sub frames corresponding to subframe n downlink data, and 1≤M ＜ 4.Above-mentioned scheme, base station can be allowd to identify the HARQ information sent using the UE for shortening feedback time exactly, improve the quality of the downlink data transmission between user equipment and base station.
Description
Technical field
The present invention relates to wireless communication technology, more particularly to the HARQ feedback method of a kind of user equipment and downlink data.
Background technology
Long Term Evolution (Long Term Evolution, LTE), is by third generation partner program (The 3rd
Generation Partnership Project, 3GPP) UMTS (Universal that organizes to set up
Mobile Telecommunications System, UMTS) technical standard Long Term Evolution, it is more in 3GPP in December, 2004
Formally set up the project and start in the more meetings of human relations.LTE system introduces OFDM (Orthogonal Frequency
Division Multiplexing, OFDM) and multiple-input and multiple-output (Multi-Input＆Multi-Output, MIMO) etc. close
Key technology, spectrum efficiency and message transmission rate are significantly increased, and support various bandwidth to distribute：1.4MHz, 3MHz, 5MHz,
10MHz, 15MHz and 20MHz etc., and global main flow 2G/3G frequency ranges and some newly-increased frequency ranges are supported, thus frequency spectrum distribution is cleverer
Living, power system capacity and covering are also obviously improved.The LTE system network architecture more flattening simplify, reduce network node and
System complexity, so as to reduce Time Delay of Systems, also reduce network design and maintenance cost.LTE system is supported and other
3GPP system interoperates.
For LTE FDDs (Frequency Division Duplexing, FDD), when base station (eNB) is in subframe n
Downlink data biography is carried out to UE in Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH)
Defeated, UE needs to send the downlink data progress HARQ responses for subframe n in subframe n+4.If UE can accurately receive subframe n
Downlink data, then UE need subframe n+4 indicate confirm (ACK) information；If it can not accurately receive subframe n downlink data
Or being not received by subframe n downlink data, then UE indicates not confirm (NACK) information in the subframe.
The project for shortening processing time, the mesh of the project are introduced in 72nd meeting of 3GPP wireless access networks (RAN)
Mark includes：For routine (legacy) 1ms Transmission Time Interval (TTI), reduce between downlink data and HARQ feedback when
Between be spaced, i.e., for the downlink data on subframe n PDSCH, UE is needed in subframe n+M (1≤M<4) HARQ responses are carried out.
But when not only having conventional user devices (legacy UE) in same cell, the UE that feedback time is shortened in application being also present,
Base station can be caused can not to identify the source using the UE for the shortening feedback time HARQ information sent exactly, have impact on shortening
The transmission of the UE of feedback time downlink data.
The content of the invention
Present invention solves the technical problem that it is how to allow base station to identify exactly using shortening feedback time
The HARQ information that UE is sent, improve the quality of the downlink data transmission between user equipment and base station.
In order to solve the above technical problems, the embodiments of the invention provide a kind of HARQ feedback method of downlink data, it is suitable to
User equipment carries out HARQ feedback, and methods described includes：Receive the downlink data that base station is sent in subframe n PDSCH；Acquisition pair
The information for the PUCCH resource offset answered, and corresponding PUCCH resource index is calculated；Using in subframe n+M with calculating
PUCCH resource corresponding to the PUCCH resource index arrived, to the HARQ information of subframe n downlink data described in base station feedback；M is
Feedback interval number of sub frames corresponding to subframe n downlink data, and 1≤M ＜ 4.
Alternatively, the information of PUCCH resource offset corresponding to the acquisition, including：Downlink data pair based on subframe n
The feedback interval number of sub frames answered, by inquiring about PUCCH resource offset corresponding to default PUCCH resource offset-lists acquisition.
Alternatively, the information of PUCCH resource offset corresponding to the acquisition, including：Downlink data pair based on subframe n
The feedback interval number of sub frames answered, by the information for inquiring about correction corresponding to default correction table acquisition；Obtained based on inquiry
Correction, be calculated corresponding to PUCCH resource offset.
Alternatively, the correction obtained based on inquiry, corresponding PUCCH resource offset is calculated, including：Wherein,PUCCH resource offset corresponding to expression,Represent PUCCH moneys
The a reference value that source index calculates, correction corresponding to delta expressions.
Alternatively, when user equipment is configured in port p0It is described that corresponding PUCCH is calculated during upper transmission PUCCH
Resource index, including：Wherein,Represent the antenna port p of the user equipment0It is corresponding
PUCCH resource index, nCCERepresent that the user equipment receives the Downlink Control Information of itself in the subframe n and mapped
Control channel unit minimum index,PUCCH resource offset corresponding to expression.
Alternatively, when user equipment is configured in antenna port p0And p1It is described to be calculated correspondingly during upper transmission PUCCH
PUCCH resource index, including： Wherein,The antenna port p of the user equipment is represented respectively0、p1Corresponding PUCCH resource index, nCCERepresent institute
The minimum index that user equipment receives the control channel unit that the Downlink Control Information of itself is mapped in the subframe n is stated,PUCCH resource offset corresponding to expression.
Alternatively, PUCCH resource corresponding to PUCCH resource index is form 1 in the subframe n+M being calculated
PUCCH resource.
The embodiment of the present invention additionally provides a kind of user equipment, including：Receiving unit, suitable for receiving base station subframe n's
The downlink data that PDSCH is sent；Computing unit, suitable for the information of PUCCH resource offset corresponding to acquisition, and it is calculated pair
The PUCCH resource index answered；HARQ feedback unit, it is adapted in use to corresponding with the PUCCH resource index being calculated in subframe n+M
PUCCH resource, to the HARQ information of subframe n downlink data described in base station feedback；M is corresponding to subframe n downlink data
Feedback interval number of sub frames, and 1≤M ＜ 4.
Alternatively, the computing unit, suitable for feedback interval number of sub frames corresponding to the downlink data based on subframe n, pass through
Inquire about PUCCH resource offset corresponding to default PUCCH resource offset-lists acquisition.
Alternatively, the computing unit, suitable for feedback interval number of sub frames corresponding to the downlink data based on subframe n, pass through
Inquire about the information of correction corresponding to default correction table acquisition；The correction obtained based on inquiry, it is calculated corresponding
PUCCH resource offset.
Alternatively, the computing unit is suitable to corresponding PUCCH resource offset is calculated using formula below：Wherein,PUCCH resource offset corresponding to expression,Represent PUCCH moneys
The a reference value that source index calculates, correction corresponding to delta expressions.
Alternatively, the computing unit, suitable for being configured in port p when user equipment0During upper transmission PUCCH, using such as
Under formula be calculated corresponding to PUCCH resource index：Wherein,Represent the user
The antenna port p of equipment0Corresponding PUCCH resource index, nCCERepresent that the user equipment receives itself in the subframe n
The minimum index of control channel unit that is mapped of Downlink Control Information,PUCCH resource offset corresponding to expression.
In an embodiment of the present invention, the computing unit, suitable for being configured in port p when the user equipment0And p1On
When sending PUCCH, corresponding PUCCH resource index is calculated using formula below, including：Wherein,Antenna port is represented respectively
p0、p1Corresponding PUCCH resource index, nCCERepresent that user equipment receives the Downlink Control Information institute of itself in the subframe n
The minimum index of the control channel unit of mapping,PUCCH resource offset corresponding to expression.
Alternatively, PUCCH resource corresponding to PUCCH resource index is form 1 in the subframe n+M being calculated
PUCCH resource.
Compared with prior art, the technical scheme of the embodiment of the present invention has the advantages that：
Above-mentioned scheme, by PUCCH resource offset corresponding to the HARQ information of the downlink data for subframe n, calculate
Corresponding PUCCH resource index is obtained, and uses the corresponding PUCCH resource of PUCCH resource index in subframe n+M with being calculated
To the HARQ information of base station feedback subframe n downlink data so that base station correctly obtains anti-using the UE for shortening feedback time
The HARQ information of feedback, improves base station and the quality of the downlink data transmission between the UE of feedback time is shortened in application.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the HARQ feedback method of downlink data according to embodiments of the present invention；
Fig. 2 is the flow chart of the HARQ feedback method of another downlink data according to embodiments of the present invention；
Fig. 3 is the flow chart of the HARQ feedback method of another downlink data according to embodiments of the present invention；
Fig. 4 is a kind of HARQ feedback example schematic of downlink data according to embodiments of the present invention；
Fig. 5 is a kind of structural representation of user equipment in the embodiment of the present invention.
Embodiment
As background technology is sayed, for LTE FDDs (Frequency Division Duplexing, FDD), work as base
Stand (eNB) in subframe n in Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) to UE
Downlink data transmission is carried out, UE needs to send the downlink data progress HARQ responses for subframe n in subframe n+4.If UE energy
The enough accurate downlink data for receiving subframe n, then UE needs are in subframe n+4 instruction confirmation (ACK) information；If can not accurately it receive
Subframe n downlink data or the downlink data for being not received by subframe n, then UE indicate not confirm that (NACK) believes in the subframe
Breath.
In the case of FDD and single serving cell, in the carry out HARQ information using PUCCH format 1a or form 1b
During feedback, UE need according to subframe n PDCCH reception to the Downlink Control Information of itself (DCI) mapped control letter
The minimum index n of road unit (Control Channel Element, CCE)CCETo determine PUCCH position, DCI can be with
It is made up of one or more CCE, i.e., a DCI is mapped on one or more CCE.For example, when UE is configured in two ports
When sending PUCCH, formula below can be respectively adopted, the downlink data of subframe n in the case of the Normal Feedback time is calculated
HARQ information corresponding to PUCCH positions：
Wherein,Represent that UE sends two antenna ports of HARQ responses,Represent respectively
Port p0And p1Corresponding PUCCH resource index, nCCERepresent that the user equipment receives the descending control of oneself in the subframe n
The minimum index for the control channel unit that information processed is mapped.
The project for shortening processing time, the mesh of the project are introduced in 72nd meeting of 3GPP wireless access networks (RAN)
Mark includes：For routine (legacy) 1ms Transmission Time Interval (TTI), reduce between downlink data and HARQ feedback when
Between be spaced, i.e., for the downlink data on subframe n PDSCH, UE needs that (M is integer and 1≤M in subframe n+M<4) carry out
HARQ responses.But when not only having conventional user devices (legacy UE) in same cell, when application shortening feedback also be present
Between UE when, can cause base station can not identify exactly using shorten feedback time UE send HARQ information source,
It has impact on the transmission of the downlink data using the UE for shortening feedback time.
It is above-mentioned to solve the problems, such as, HARQ information configuration of the embodiment of the present invention by base station for subframe n downlink data
Corresponding PUCCH resource offset so that the UE that feedback time is shortened in application can be based on corresponding PUCCH resource skew gauge
Calculation obtains corresponding PUCCH resource index, thereby using the corresponding PUCCH of PUCCH resource index in subframe n+M with being calculated
HARQ information of the resource to base station feedback subframe n downlink data so that identify exactly using shortening feedback time base station
UE feedback HARQ information, can improve base station and application shorten feedback time UE between downlink data transmission matter
Amount.
It is understandable to enable above-mentioned purpose, feature and the beneficial effect of the present invention to become apparent, below in conjunction with the accompanying drawings to this
The specific embodiment of invention is described in detail.
Fig. 1 shows a kind of flow chart of the HARQ feedback method of downlink data in the embodiment of the present invention.Specific real
Shi Zhong, the UE that can shorten feedback time by application carry out the HARQ feedback of downlink data.
Below referring to Fig. 1, the HARQ feedback method of the downlink data in the embodiment of the present invention is carried out by specific steps
Describe in detail：
Step S101：Receive the downlink data that base station is sent in subframe n PDSCH.
In specific implementation, base station subframe n PDSCH to application shorten feedback time UE transmit downlink data,
Then this downlink data is received using the UE for shortening feedback time.Wherein, n integers.
Step S102：The information of PUCCH resource offset corresponding to acquisition, and PUCCH resource index is calculated.
In specific implementation, using the UE of shortening feedback time in the case where receiving base station and being transmitted on subframe n PDSCH
During row data, it is necessary in m-th subframe afterwards, i.e. subframe n+M is to HARQ information corresponding to base station feedback.Wherein, M is subframe
Feedback interval number of sub frames corresponding to n downlink data.
Now, the UE and conventional UE for shortening feedback time in order to avoid application use identical PUCCH resource in subframe n+M
To HARQ information corresponding to base station feedback, so that base station can not correctly distinguish the source of received HARQ information, base
It can be to shorten PUCCH resource offset corresponding to the UE configurations of feedback time to stand, to cause using the UE for shortening feedback time
The HARQ information of downlink data corresponding to the PUCCH resource feedback different from conventional UE can be used.
In specific implementation, base station can be matched somebody with somebody by the UE that direct or indirect mode is application shortening feedback time respectively
PUCCH resource offset, particular content refer to Fig. 2 and Fig. 3 corresponding to putting.
In an embodiment of the present invention, corresponding PUCCH resource offset is being got using the UE for shortening feedback time
When, corresponding PUCCH resource index can be calculated using formula below：
Wherein,The antenna port p of the user equipment is represented respectively0、p1Corresponding PUCCH resource
Index, nCCERepresent that the user equipment receives the control channel unit that the Downlink Control Information of itself mapped in subframe n
Minimum index,PUCCH resource offset corresponding to expression.
Step S103：Using in subframe n+M with the corresponding PUCCH resource of PUCCH resource index being calculated, to base station
Feed back the HARQ information of subframe n downlink data.
In specific implementation, when determining that corresponding PUCCH resource indexes using formula (3) or (4), when being fed back using shortening
Between UE can with using in subframe n+M with the corresponding PUCCH resource of PUCCH resource index being calculated, by under subframe n
The HARQ feedback of the information of row data is to base station.
In specific implementation, other schemes can also be used to carry out the HARQ feedback of downlink data.Referring to Fig. 2, this hair
Bright embodiment provides the HARQ feedback method of another downlink data, can specifically include the steps：
Step S201：Receive the downlink data that base station is sent in subframe n PDSCH.
Step S202：Feedback interval number of sub frames corresponding to the downlink data that PDSCH based on subframe n is sent, passes through inquiry
Default PUCCH resource offset-lists obtain the information of corresponding PUCCH resource offset.
In specific implementation, when base station can be that feedback is shortened in application directly by default PUCCH resource offset-lists
Between UE configuration corresponding to PUCCH resource offset, with inform using shorten feedback time UE corresponding to PUCCH resource offset
The information of amount.
In an embodiment of the present invention, in order that the UE for shortening feedback time must be applied to identify what is configured
PUCCH resource offset, base station is the downlink data for being the UE that feedback time is shortened in application by signaling (such as RRC signaling)
Corresponding to HARQ information configurations during PUCCH resource offset, feedback interval number of sub frames M corresponding to the downlink data can be passed through
It is identified.For example, when feedback interval number of sub frames corresponding to UE downlink data is 2 subframes, PUCCH corresponding to configuration is provided
Source offset amount isWhen feedback interval number of sub frames corresponding to UE downlink data is 3 subframes, corresponding to configuration
PUCCH resource offset is
Step S203：The information of the PUCCH resource offset obtained based on inquiry, is calculated the descending of the subframe n
PUCCH resource corresponding to the HARQ information of data indexes.
Step S204：Using in subframe n+M with the corresponding PUCCH resource of PUCCH resource index being calculated, will described in
The HARQ information of subframe n downlink data is sent to the base station.
Step S201, S203~S204 refers to the introduction execution of corresponding steps in the embodiment shown in above-mentioned Fig. 1, herein
Repeat no more.
Fig. 3 shows the flow chart of the HARQ feedback method of another downlink data in the embodiment of the present invention.Referring to figure
3, in specific implementation, the steps can be used：
Step S301：Receive the downlink data that base station is sent in subframe n PDSCH.
Step S302：Feedback interval number of sub frames corresponding to the downlink data that PDSCH based on subframe n is sent, passes through inquiry
Default correction table obtains the information of corresponding correction.
In specific implementation, base station can be the UE configurations that feedback time is shortened in application first by default correction table
Corresponding correction.Wherein, there is the downlink data of different feedback interval number of sub frames, the correction of setting also differs.
In an embodiment of the present invention, in order that the UE for shortening feedback time must be applied to identify configured amendment
Amount, lower line number of the base station in the UE for shortening feedback time for application by signaling (such as RRC signaling or physical down control signaling)
According to HARQ information configurations corresponding to correction when, can be identified by corresponding feedback interval number of sub frames M.For example, base
It can be that feedback interval number of sub frames is 2 to stand, i.e. the downlink data of M=2 sets the correction that size is delta1, is feedback interval
The downlink data that number of sub frames is 3 sets PUCCH resource offset that size is delta2 etc..
Step S303：The information of the correction obtained based on inquiry, the letter of corresponding PUCCH resource offset is calculated
Breath.
In an embodiment of the present invention, can be with using the UE for shortening feedback time corresponding to being obtained in inquiry during correction
The information of corresponding PUCCH resource offset is calculated using formula below：
Wherein,PUCCH resource offset corresponding to expression,Represent the benchmark that PUCCH resource index calculates
Value, correction corresponding to delta expressions.
Step S304：Based on the information for the PUCCH resource offset being calculated, corresponding PUCCH resource is calculated
Index.
Step S305：Using in subframe n+M with the corresponding PUCCH resource of PUCCH resource index being calculated, will described in
The HARQ feedback of the information of subframe n downlink data is to base station.
Step S301, S304~S305 refers to the introduction execution of corresponding steps in the embodiment shown in above-mentioned Fig. 1, herein
Repeat no more, such as need in step s 304 according to formula (3) and (4), believed according to the descending control that transmission downlink data is related
Make the minimum n of mappingCCEObtain the resource that PUCCH is sent on different antennae port.
It should be noted that base station can configure applies different shortening feedback times using the UE for shortening feedback time,
For example UE supports to shorten minimum 1 millisecond of feedback interval, base station can configure the UE, and in a period of time, feedback is shortened in application
Time is 2 milliseconds, and it is 3 milliseconds to shorten feedback time in the application of lower a period of time.In such a scenario, base station can pass through signaling
(such as RRC signaling or physical down control signaling) is the HARQ information configurations pair of the downlink data for the UE that feedback time is shortened in application
During the correction answered, it can be identified by corresponding feedback interval number of sub frames M.If base station is for UE all the time using one kind
Such as 3 milliseconds of feedback interval, now base station only a kind of correction need to be indicated to UE by signaling.If base station passes through under physics
Row control signaling indicates correction, can indicate the correction in the respective impact control signaling of transmission downlink data, generally
When base station sends downlink data, sent in subframe resource that descending control signaling indicates that downlink data uses in same subframe,
Modulation format etc., UE receive descending control signaling and receive downlink data according to the signaling afterwards.
The HARQ information feedback methods of the downlink data in the embodiment of the present invention are carried out below in conjunction with specific example
Introduce.
Referring to Fig. 4, UE1 is conventional UE, and UE2 is the UE that feedback time is shortened in application, and UE2 feedback interval number of sub frames is
3.Base station dispatches UE1 downlink data (downlink data for transmitting UE1) in the PDSCH of subframe 0, and UE1 then needs to enter in subframe 4
HARQ responses corresponding to row；Base station dispatches UE2 downlink data in the PDSCH of subframe 1, and UE2 then needs also exist for sending in subframe 4
Corresponding HARQ response messages.
In order to avoid UE1 and UE2 uses identical PUCCH resource in subframe 4 to carry out HARQ feedback, base station can lead in advance
The mode to PUCCH resource offset-lists corresponding to UE2 transmissions is crossed, informs that UE2 feeds back the downlink data of subframe 1 in subframe 4
Offset is corresponding to PUCCH resourceOr base station can also be beforehand through correction table corresponding to being sent to UE2
Mode, inform that UE2 corresponding correction delta, UE2 when corresponding subframe 4 feeds back the downlink data of subframe 1 use formula again
(5) PUCCH resource offset corresponding to being calculated.
UE2 can use formula (3) or (4) be calculated when getting the information of corresponding PUCCH resource offset
The information of corresponding PUCCH resource index, and based on the corresponding relation between PUCCH resource and PUCCH resource index, it is determined that sub
Corresponding PUCCH resource in frame 4, and PDCCH of the PUCCH resource determined by use to base station feedback base station in subframe 1 is dispatched
Downlink data HARQ information, i.e., the form 1 in dotted line frame 402 PUCCH resource carrying UE2 subframe 1 downlink data
HARQ information.So, the PUCCH resource carrying UE1 of the form 1 in dotted line frame 403 believes in the HARQ of the downlink data of subframe 0
Breath.
Similarly, when UE2 feedback interval number of sub frames is 2, the PUCCH resource carrying UE2 of the form 1 in dotted line frame 401
In the HARQ information of the downlink data of subframe 2.
Base station can determine UE1 and UE2 in the same way when subframe 4 receives the PUCCH that UE1 and UE2 is sent
The used PUCCH resource in the HARQ information that subframe 4 is sent, it is no longer superfluous herein so as to parse corresponding HARQ information
State.
It is to be herein pointed out base station can send one or more conventional UE lower line number in the PDSCH of subframe 0
According to sending one or more UE using n+3 feedbacks downlink data in subframe 1, it is anti-to send one or more n+2 in subframe 2
The UE of feedback downlink data.According to sequential relationship, the UE of above-mentioned conventional UE and the shortening feedback time supported is required for using
The PUCCH resource of subframe 4 carries out HARQ information answers.
Therefore, in Fig. 4, the PUCCH resource in each dotted line frame may carry the HARQ letters of multiple UE downlink data
Breath.
The present invention also has a kind of implementation, i.e., shortens the UE of feedback time for application, base station can be by signaling such as
RRC signaling directly configures the resource of HARQ feedback, i.e., directly indicates the PUCCH resource index in formula (3) and (4), UE is once
Downlink data is received using feedback time is shortened, then sends HARQ feedback in indicated PUCCH resource.
Device corresponding to the HARQ feedback method of the downlink data in the embodiments of the present invention is done below in conjunction with Fig. 5
Further details of introduction.
Referring to Fig. 5, a kind of user equipment 500 in the embodiment of the present invention can include receiving unit 501, computing unit
502 and HARQ feedback unit 503, wherein：
The receiving unit 501, the downlink data sent suitable for receiving base station in subframe n PDSCH.
The computing unit 502, suitable for the information of PUCCH resource offset corresponding to acquisition, and it is calculated corresponding
PUCCH resource indexes.
In an embodiment of the present invention, the computing unit 502, suitable for feedback corresponding to the downlink data based on subframe n
Number of sub frames is spaced, by inquiring about PUCCH resource offset corresponding to default PUCCH resource offset-lists acquisition.
In an embodiment of the present invention, the computing unit 502, suitable for feedback corresponding to the downlink data based on subframe n
Number of sub frames is spaced, by the information for inquiring about correction corresponding to default correction table acquisition；The correction obtained based on inquiry,
PUCCH resource offset corresponding to being calculated.
In an embodiment of the present invention, the computing unit 502 is corresponding suitable for being calculated using formula below
PUCCH resource offset：Wherein,PUCCH resource offset corresponding to expression,Represent a reference value that PUCCH resource index calculates, correction corresponding to delta expressions.
In an embodiment of the present invention, the computing unit 502, suitable for being configured as when user equipment in antenna port p0
When sending PUCCH, corresponding PUCCH resource index is calculated using formula below：Its
In,Represent antenna port p0Corresponding PUCCH resource index, nCCERepresent that user equipment receives certainly in the subframe n
The minimum index for the control channel unit that the Downlink Control Information of body is mapped,PUCCH resource corresponding to expression is offset
Amount.
In an embodiment of the present invention, the computing unit 502, suitable for being configured as when user equipment in antenna port p0
And p1When sending PUCCH, corresponding PUCCH resource index is calculated using formula below, including：Wherein,User equipment is represented respectively
Antenna port p0、p1Corresponding PUCCH resource index, nCCERepresent that user equipment receives the descending of itself in the subframe n
The minimum index for the control channel unit that control information is mapped,PUCCH resource offset corresponding to expression.
In specific implementation, the HARQ feedback unit 503, it is adapted in use to provide with the PUCCH being calculated in subframe n+M
PUCCH resource corresponding to the index of source, to the HARQ information of subframe n downlink data described in base station feedback；M is the descending of subframe n
Feedback interval number of sub frames corresponding to data, and 1≤M ＜ 4.
In specific implementation, PUCCH resource corresponding to PUCCH resource index in the subframe n+M being calculated
For the PUCCH resource of form 1.
Using the such scheme in the embodiment of the present invention, by corresponding to the HARQ information of the downlink data for subframe n
PUCCH resource offset, corresponding PUCCH resource index is calculated, and is provided using in subframe n+M with the PUCCH being calculated
HARQ information of the PUCCH resource to base station feedback subframe n downlink data corresponding to the index of source so that base station correctly obtains should
The HARQ information fed back with the UE for shortening feedback time, improve the downlink data between the UE of base station and application shortening feedback time
The quality of transmission.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
To instruct the hardware of correlation to complete by program, the program can be stored in a computer-readable recording 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, this is not being departed from
In the spirit and scope of invention, it can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
The scope of restriction is defined.
Claims (14)
1. a kind of HARQ feedback method of downlink data, HARQ feedback is carried out suitable for user equipment, it is characterised in that including：
Receive the downlink data that base station is sent in subframe n PDSCH；
The information of PUCCH resource offset corresponding to acquisition, and corresponding PUCCH resource index is calculated；
Using in subframe n+M with the corresponding PUCCH resource of PUCCH resource index being calculated, to subframe n described in base station feedback
Downlink data HARQ information；M is feedback interval number of sub frames corresponding to subframe n downlink data, and 1≤M ＜ 4.
2. the HARQ feedback method of downlink data according to claim 1, it is characterised in that corresponding to the acquisition
The information of PUCCH resource offset, including：
Feedback interval number of sub frames corresponding to downlink data based on subframe n, obtained by inquiring about default PUCCH resource offset-lists
PUCCH resource offset corresponding to taking.
3. the HARQ feedback method of downlink data according to claim 1, it is characterised in that corresponding to the acquisition
PUCCH resource offset, including：
Feedback interval number of sub frames corresponding to downlink data based on subframe n, by inquiring about corresponding to default correction table acquisition
The information of correction；
The correction obtained based on inquiry, corresponding PUCCH resource offset is calculated.
4. the HARQ feedback method of downlink data according to claim 3, it is characterised in that described to be obtained based on inquiry
Correction, corresponding PUCCH resource offset is calculated, including：
<mrow>
<msubsup>
<mi>N</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>*</mo>
<mo>)</mo>
</mrow>
</msubsup>
<mo>=</mo>
<msubsup>
<mi>N</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>)</mo>
</mrow>
</msubsup>
<mo>+</mo>
<mi>d</mi>
<mi>e</mi>
<mi>l</mi>
<mi>t</mi>
<mi>a</mi>
<mo>;</mo>
</mrow>
Wherein,PUCCH resource offset corresponding to expression,The a reference value that PUCCH resource index calculates is represented,
Correction corresponding to delta expressions.
5. the HARQ feedback method of downlink data according to claim 1, it is characterised in that when user equipment is configured in
Port p0During upper transmission PUCCH, it is described be calculated corresponding to PUCCH resource index, including：
<mrow>
<msubsup>
<mi>n</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>,</mo>
<msub>
<mover>
<mi>p</mi>
<mo>~</mo>
</mover>
<mn>0</mn>
</msub>
<mo>)</mo>
</mrow>
</msubsup>
<mo>=</mo>
<msub>
<mi>n</mi>
<mrow>
<mi>C</mi>
<mi>C</mi>
<mi>E</mi>
</mrow>
</msub>
<mo>+</mo>
<msubsup>
<mi>N</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>*</mo>
<mo>)</mo>
</mrow>
</msubsup>
<mo>;</mo>
</mrow>
Wherein,Represent the antenna port p of the user equipment0Corresponding PUCCH resource index, nCCERepresent the user
Equipment receives the minimum index for the control channel unit that the Downlink Control Information of itself is mapped in the subframe n,
PUCCH resource offset corresponding to expression.
6. the HARQ feedback method of downlink data according to claim 1, it is characterised in that when user equipment is configured in
Port p0And p1During upper transmission PUCCH, it is described be calculated corresponding to PUCCH resource index, including：
<mrow>
<msubsup>
<mi>n</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>,</mo>
<msub>
<mover>
<mi>p</mi>
<mo>~</mo>
</mover>
<mn>0</mn>
</msub>
<mo>)</mo>
</mrow>
</msubsup>
<mo>=</mo>
<msub>
<mi>n</mi>
<mrow>
<mi>C</mi>
<mi>C</mi>
<mi>E</mi>
</mrow>
</msub>
<mo>+</mo>
<msubsup>
<mi>N</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>*</mo>
<mo>)</mo>
</mrow>
</msubsup>
<mo>;</mo>
</mrow>
<mrow>
<msubsup>
<mi>n</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>,</mo>
<msub>
<mover>
<mi>p</mi>
<mo>~</mo>
</mover>
<mn>1</mn>
</msub>
<mo>)</mo>
</mrow>
</msubsup>
<mo>=</mo>
<msub>
<mi>n</mi>
<mrow>
<mi>C</mi>
<mi>C</mi>
<mi>E</mi>
</mrow>
</msub>
<mo>+</mo>
<mn>1</mn>
<mo>+</mo>
<msubsup>
<mi>N</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>*</mo>
<mo>)</mo>
</mrow>
</msubsup>
<mo>;</mo>
</mrow>
Wherein,The antenna port p of the user equipment is represented respectively0、p1Corresponding PUCCH resource index,
nCCERepresent that the user equipment receives the control channel unit that the Downlink Control Information of itself mapped in the subframe n
Minimum index,PUCCH resource offset corresponding to expression.
7. the HARQ feedback method of downlink data according to claim 1, it is characterised in that it is described be calculated it is described
PUCCH resource corresponding to PUCCH resource index is the PUCCH resource of form 1 in subframe n+M.
A kind of 8. user equipment, it is characterised in that including：
Receiving unit, the downlink data sent suitable for receiving base station in subframe n PDSCH；
Computing unit, suitable for the information of PUCCH resource offset corresponding to acquisition, and corresponding PUCCH resource rope is calculated
Draw；
HARQ feedback unit, be adapted in use in subframe n+M with the corresponding PUCCH resource of PUCCH resource index being calculated, to
The HARQ information of subframe n downlink data described in base station feedback；M is feedback interval number of sub frames corresponding to subframe n downlink data,
And 1≤M ＜ 4.
9. user equipment according to claim 8, it is characterised in that the computing unit, suitable for based on the descending of subframe n
Feedback interval number of sub frames corresponding to data, it is inclined by inquiring about PUCCH resource corresponding to default PUCCH resource offset-lists acquisition
Shifting amount.
10. user equipment according to claim 8, it is characterised in that the computing unit, suitable for based under subframe n
Feedback interval number of sub frames corresponding to row data, by the information for inquiring about correction corresponding to default correction table acquisition；It is based on
Obtained correction is inquired about, corresponding PUCCH resource offset is calculated.
11. user equipment according to claim 10, it is characterised in that the computing unit is suitable to use formula below
PUCCH resource offset corresponding to being calculated：
<mrow>
<msubsup>
<mi>N</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>*</mo>
<mo>)</mo>
</mrow>
</msubsup>
<mo>=</mo>
<msubsup>
<mi>N</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>)</mo>
</mrow>
</msubsup>
<mo>+</mo>
<mi>d</mi>
<mi>e</mi>
<mi>l</mi>
<mi>t</mi>
<mi>a</mi>
<mo>;</mo>
</mrow>
Wherein,PUCCH resource offset corresponding to expression,The a reference value that PUCCH resource index calculates is represented,
Correction corresponding to delta expressions.
12. user equipment according to claim 8, it is characterised in that the computing unit, suitable for when user equipment by with
Put in port p0During upper transmission PUCCH, corresponding PUCCH resource index is calculated using formula below：
<mrow>
<msubsup>
<mi>n</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>,</mo>
<msub>
<mover>
<mi>p</mi>
<mo>~</mo>
</mover>
<mn>0</mn>
</msub>
<mo>)</mo>
</mrow>
</msubsup>
<mo>=</mo>
<msub>
<mi>n</mi>
<mrow>
<mi>C</mi>
<mi>C</mi>
<mi>E</mi>
</mrow>
</msub>
<mo>+</mo>
<msubsup>
<mi>N</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>*</mo>
<mo>)</mo>
</mrow>
</msubsup>
<mo>;</mo>
</mrow>
Wherein,Represent the antenna port p of the user equipment0Corresponding PUCCH resource index, nCCERepresent the user
Equipment receives the minimum index for the control channel unit that the Downlink Control Information of itself is mapped in the subframe n,
PUCCH resource offset corresponding to expression.
13. user equipment according to claim 8, it is characterised in that the computing unit, suitable for when user equipment by with
Put in port p0And p1During upper transmission PUCCH, corresponding PUCCH resource index is calculated using formula below：
<mrow>
<msubsup>
<mi>n</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>,</mo>
<msub>
<mover>
<mi>p</mi>
<mo>~</mo>
</mover>
<mn>0</mn>
</msub>
<mo>)</mo>
</mrow>
</msubsup>
<mo>=</mo>
<msub>
<mi>n</mi>
<mrow>
<mi>C</mi>
<mi>C</mi>
<mi>E</mi>
</mrow>
</msub>
<mo>+</mo>
<msubsup>
<mi>N</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>*</mo>
<mo>)</mo>
</mrow>
</msubsup>
<mo>;</mo>
</mrow>
<mrow>
<msubsup>
<mi>n</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>,</mo>
<msub>
<mover>
<mi>p</mi>
<mo>~</mo>
</mover>
<mn>1</mn>
</msub>
<mo>)</mo>
</mrow>
</msubsup>
<mo>=</mo>
<msub>
<mi>n</mi>
<mrow>
<mi>C</mi>
<mi>C</mi>
<mi>E</mi>
</mrow>
</msub>
<mo>+</mo>
<mn>1</mn>
<mo>+</mo>
<msubsup>
<mi>N</mi>
<mrow>
<mi>P</mi>
<mi>U</mi>
<mi>C</mi>
<mi>C</mi>
<mi>H</mi>
</mrow>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>*</mo>
<mo>)</mo>
</mrow>
</msubsup>
<mo>;</mo>
</mrow>
Wherein,The antenna port p of the user equipment is represented respectively0、p1Corresponding PUCCH resource index,
nCCERepresent that the user equipment receives the control channel unit that the Downlink Control Information of itself mapped in the subframe n
Minimum index,PUCCH resource offset corresponding to expression.
14. user equipment according to claim 8, it is characterised in that in the subframe n+M being calculated
PUCCH resource corresponding to PUCCH resource index is the PUCCH resource of form 1.
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| CN201610664504.2A CN107734671A (en) | 2016-08-12 | 2016-08-12 | The HARQ feedback method of user equipment and downlink data |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110855401A (en) * | 2018-08-20 | 2020-02-28 | 华为技术有限公司 | HARQ feedback method and device |
| CN111565098A (en) * | 2019-02-13 | 2020-08-21 | 华为技术有限公司 | Method, device and system for determining HARQ feedback resources |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103222224A (en) * | 2010-08-20 | 2013-07-24 | 瑞典爱立信有限公司 | Arrangement and method for identifying PUCCH format 3 resources |
| CN104468030A (en) * | 2014-08-26 | 2015-03-25 | 上海华为技术有限公司 | Data transmission method, user equipment and base station |
| CN104518855A (en) * | 2013-09-30 | 2015-04-15 | 展讯通信（上海）有限公司 | Downlink HARQ (hybrid automatic repeat request) feedback processing method and device for base station and LET (long-term evolution) system |
| US20160135170A1 (en) * | 2014-11-07 | 2016-05-12 | Qualcomm Incorporated | Pucch for mtc devices |
-
2016
- 2016-08-12 CN CN201610664504.2A patent/CN107734671A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103222224A (en) * | 2010-08-20 | 2013-07-24 | 瑞典爱立信有限公司 | Arrangement and method for identifying PUCCH format 3 resources |
| CN104518855A (en) * | 2013-09-30 | 2015-04-15 | 展讯通信（上海）有限公司 | Downlink HARQ (hybrid automatic repeat request) feedback processing method and device for base station and LET (long-term evolution) system |
| CN104468030A (en) * | 2014-08-26 | 2015-03-25 | 上海华为技术有限公司 | Data transmission method, user equipment and base station |
| US20160135170A1 (en) * | 2014-11-07 | 2016-05-12 | Qualcomm Incorporated | Pucch for mtc devices |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110855401A (en) * | 2018-08-20 | 2020-02-28 | 华为技术有限公司 | HARQ feedback method and device |
| CN111565098A (en) * | 2019-02-13 | 2020-08-21 | 华为技术有限公司 | Method, device and system for determining HARQ feedback resources |
| CN111565098B (en) * | 2019-02-13 | 2022-02-11 | 华为技术有限公司 | Method, device and system for determining HARQ feedback resources |
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Application publication date: 20180223 |