CN107483165A - Merge method, apparatus, base station and the user equipment of feedback - Google Patents

Merge method, apparatus, base station and the user equipment of feedback Download PDF

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Publication number
CN107483165A
CN107483165A CN201610405714.XA CN201610405714A CN107483165A CN 107483165 A CN107483165 A CN 107483165A CN 201610405714 A CN201610405714 A CN 201610405714A CN 107483165 A CN107483165 A CN 107483165A
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subframes
phich
offset
pusch
feedback
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CN107483165B (en
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韩传华
邓云
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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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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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A kind of method, apparatus, base station and user equipment for merging feedback, the described method comprises the following steps：The user equipment offset-lists of all feedbacks to be received are informed, the offset-lists are used to indicate the corresponding relation of difference PUSCH subframes and offset when calculating PHICH resource；For all PUSCH subframes to be feedback, according to offset corresponding to every PUSCH subframes, the PHICH resource used for the HARQ feedback of each PUSCH subframes in PHICH subframes is calculated；PHICH is sent to the user equipment of all feedbacks to be received in the PHICH subframes.The present invention program can make HARQ feedback that user equipment determines to merge different PUSCH subframes in the feedback corresponding PHICH resource in same PHICH subframes, so as to correctly obtaining information.

Description

Merge method, apparatus, base station and the user equipment of feedback
Technical field
The present invention relates to wireless communication technology, more particularly to a kind of method, apparatus, base station and user for merging feedback to set It is standby.
Background technology
Long Term Evolution (Long Term Evolution, LTE) system 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, in December, 2004 in the meeting of 3GPP Toronto Formally set up the project and start.LTE system introduces OFDM (Orthogonal Frequency Division Multiplexing, OFDM) and the key technology such as multiple-input and multiple-output (Multi-Input＆Multi-Output, MIMO), show Work adds spectrum efficiency and message transmission rate, and supports 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 more flexible, is System capacity and covering are also obviously improved.The more flattening of the LTE system network architecture is simplified, and reduces network node and system is answered Miscellaneous degree, so as to reduce Time Delay of Systems, also reduce network design and maintenance cost.LTE system is supported and other 3GPP systems Interoperability.Different according to duplex mode, LTE system is divided into FDD (Frequency Division Duplex, FDD) LTE With time division duplex (Time Division Duplex, TDD) LTE.FDD LTE up-downgoings use paired UHF band reception and transmission Data, and TDD LTE up-downgoings are then transmitted using identical frequency range on different time slots.
In FDD LTE, user equipment (User Equipment, UE) uses the physics of designated spectrum resource in subframe n Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH) carries out transmitting uplink data, and base station parsing is used The upstream data that family equipment is sent, and physical mixed automatic re-transmission indicating channel (Physical is sent on subframe n+4 Hybrid ARQ Indicator Channel, PHICH), instruction hybrid automatic repeat-request (Hybrid Automatic Repeat Request, HARQ) feedback information, that is, confirm (Acknowledgement, ACK) or negative acknowledge (Negative Acknowledgment, NACK).Specifically, if it is possible to accurately receive upstream data, then base station is on subframe n+4 PHICH Instruction confirms；If can not accurately receive upstream data or be not received by upstream data, PHICH of the base station in subframe n+4 Upper instruction negative acknowledge.
In TDD LTE, user equipment carries out transmitting uplink data in subframe n, and base station is needed in subframe n+k (k>=4) PHICH on indicate ACK or NACK, it should be pointed out that there are unique k values to correspond to therewith for specified n values.
PHICH transmission can carry out tissue in the form of PHICH groups, and multiple PHICH channels in 1 PHICH group use The multiplex mode of orthogonal spreading sequence takes identical time-frequency domain physical resource.For example, in normal cyclic prefix (Cyclic Prefix, CP) when, a PHICH group is multiplexed 8 PHICH channels, there is provided 8 PHICH resources, i.e. base station can be to 8 users Equipment indicates the ACK or NACK (it is assumed that a user equipment only transmits a transmission block) of its uplink.PHICH resource by PHICH groups identify and the interior mark of group together decides on.User equipment is by transmitting the Physical Resource Block shared by upstream data Position (the minimum thing of the user equipment in first slot transmission upstream data of (Physical Resource Block, PRB) Manage resource block index) and demodulation reference signal (De-Modulation Reference Signal, DMRS) circulation Displacement (Cyclic Shift, CS) determines to identify in the PHICH groups mark and group of a PHICH resource.
Usual LTE is always deployed in mandate (licensed) frequency spectrum resource that operator possesses, but authorizes frequency spectrum resource non- It is often rare, therefore operator starts consideration and makes full use of unauthorized (unlicensed) frequency spectrum resource, such as 5GHz frequency spectrum resource Carry out data transmission., it is necessary to say (Listen Before afterwards using first listening before base station is using unlicensed spectrum resource Talk, LBT) mechanism, monitoring whether have other users such as WLAN (Wireless Local Area Networks, WLAN the unlicensed spectrum resource) is used, if it is determined that the channel of unlicensed spectrum is in busy condition, then needs Treat；When it is determined that the channel of unlicensed spectrum is in idle condition, then the unlicensed spectrum resource of a period of time can be used.Example Such as, when Japan can at most be used continuously up to 4ms unlicensed spectrum resource, when other countries allow continuous use Between can be with longer.When this unlicensed spectrum resource is using completing, base station needs to discharge the unlicensed spectrum resource, so Monitor the right to use for obtaining unlicensed frequencies resource next time again afterwards.
When base station sends PHICH in the channel of unlicensed spectrum, if the channel of unlicensed spectrum is in busy condition, Then base station needs to wait and sends PHICH after postponing several subframes, it is possible to it is anti-HARQ corresponding to multiple PUSCH subframes occur The situation waiting for transmission such as feedforward information.The base station sends HARQ feedback corresponding to multiple PUSCH subframes in same PHICH subframes Situation is referred to as merging feedback.
In the prior art, when base station is closed in same PHICH subframes to HARQ feedback corresponding to multiple PUSCH subframes And when feeding back, the HARQ feedback of different PUSCH subframes is possible to correspond to same PHICH resource simultaneously, causes user equipment Every PUSCH subframes corresponding PHICH resource in the PHICH subframes can not be determined, also can not be just correctly received anti- Feedforward information.
The content of the invention
Present invention solves the technical problem that it is to provide a kind of method, apparatus, base station and user equipment for merging feedback, can Make HARQ feedback that user equipment determines to merge different PUSCH subframes in the feedback corresponding PHICH money in same PHICH subframes Source, so as to correctly obtain information.
In order to solve the above technical problems, the embodiment of the present invention provide it is a kind of merge feedback method, methods described include with Lower step：The user equipment offset-lists of all feedbacks to be received are informed, the offset-lists are used to indicate calculating PHICH moneys The corresponding relation of difference PUSCH subframes and offset during source；For all PUSCH subframes to be feedback, according to every PUSCH Offset corresponding to frame, calculate the PHICH resource used for the HARQ feedback of each PUSCH subframes in PHICH subframes； The PHICH subframes send PHICH to the user equipment of all feedbacks to be received.
Alternatively, it is corresponding with offset to include the PUSCH subframes with different first time differences for the offset-lists Relation, the first time difference are that the time of PHICH subframes and the PHICH subframes is preset corresponding to the PUSCH subframes Difference, wherein, the default PHICH subframes have default sequential corresponding relation with the PUSCH subframes.
Alternatively, it is corresponding with offset to include the PUSCH subframes with different second time differences for the offset-lists Relation, second time difference are the time difference of the PUSCH subframes and the PHICH subframes.
Alternatively, the offset according to corresponding to every PUSCH subframes, the HARQ for each PUSCH subframes is calculated Feeding back the PHICH resource used in PHICH subframes includes：According to the user equipment on first time slot of PUSCH subframes Minimum PRB indexes, DMRS cyclic shift and offset corresponding to the PUSCH subframes used in row transmission, described in calculating The PHICH resource of HARQ feedback identifies in the group mark and group in the PHICH subframes.
Alternatively, the offset-lists are to inform the user equipment by RRC signaling.
Alternatively, the offset-lists include the maximum number of PUSCH subframes to be feedback corresponding to single PHICH subframes Amount.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of method for merging feedback, methods described includes Following steps：Offset-lists are received from base station, the offset-lists are used to indicate difference PUSCH when calculating PHICH resource The corresponding relation of frame and offset；The PHICH in PHICH sub-frame transmissions is received from base station, the PHICH subframes are for being needed The PUSCH subframes of feedback；According to offset corresponding to user equipment itself every PUSCH subframes to be feedback, it is determined that for each The PHICH resource that the HARQ feedback of individual PUSCH subframes uses in the PHICH subframes.
Alternatively, it is corresponding with offset to include the PUSCH subframes with different first time differences for the offset-lists Relation, the first time difference are that the time of PHICH subframes and the PHICH subframes is preset corresponding to the PUSCH subframes Difference, wherein, the default PHICH subframes have default sequential corresponding relation with the PUSCH subframes.
Alternatively, it is corresponding with offset to include the PUSCH subframes with different second time differences for the offset-lists Relation, second time difference are the time difference of the PUSCH subframes and the PHICH subframes.
Alternatively, the offset according to corresponding to every PUSCH subframes, it is determined that the HARQ feedback for each PUSCH subframes The PHICH resource used in the PHICH subframes includes：Used according in the first time slot uplink of PUSCH subframes Minimum PRB indexes, DMRS cyclic shift and the PUSCH subframes corresponding to offset, calculate the HARQ feedback PHICH resource identifies in the group mark and group in the PHICH subframes.
Alternatively, the offset-lists are received by RRC signaling.
Alternatively, the offset-lists include the maximum number of PUSCH subframes to be feedback corresponding to single PHICH subframes Amount.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of device for merging feedback, described device includes： Informing unit, suitable for informing the user equipment offset-lists of all feedbacks to be received, the offset-lists are used to indicate calculating The corresponding relation of difference PUSCH subframes and offset during PHICH resource；Computing unit, suitable for for all PUSCH to be feedback Subframe, according to offset corresponding to every PUSCH subframes, the HARQ feedback for each PUSCH subframes is calculated in PHICH subframes The PHICH resource inside used；Transmitting element, suitable for sending PHICH to the use of all feedbacks to be received in the PHICH subframes Family equipment.
Alternatively, it is corresponding with offset to include the PUSCH subframes with different first time differences for the offset-lists Relation, the first time difference are that the time of PHICH subframes and the PHICH subframes is preset corresponding to the PUSCH subframes Difference, wherein, the default PHICH subframes have default sequential corresponding relation with the PUSCH subframes.
Alternatively, it is corresponding with offset to include the PUSCH subframes with different second time differences for the offset-lists Relation, second time difference are the time difference of the PUSCH subframes and the PHICH subframes.
Alternatively, the computing unit includes：Computation subunit, suitable for according to the user equipment in PUSCH subframes Offset corresponding to minimum PRB indexes, DMRS cyclic shift and the PUSCH subframes used in one time slot uplink Amount, calculate the PHICH resource of the HARQ feedback and identified in the group mark and group in the PHICH subframes.
Alternatively, the informing unit informs offset-lists described in the user equipment by RRC signaling.
Alternatively, the offset-lists include the maximum number of PUSCH subframes to be feedback corresponding to single PHICH subframes Amount.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of base station, the base station includes above-mentioned merging Feedback device.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of device for merging feedback, described device includes： First receiving unit, suitable for receiving offset-lists from base station, the offset-lists are used to indicate different when calculating PHICH resource The corresponding relation of PUSCH subframes and offset；Second receiving unit, suitable for being received from base station in PHICH sub-frame transmissions PHICH, the PHICH subframes are directed to all PUSCH subframes to be feedback；Determining unit, suitable for being treated according to user equipment itself Offset corresponding to every PUSCH subframes of feedback, it is determined that sub in the PHICH for the HARQ feedback of each PUSCH subframes The PHICH resource used in frame.
Alternatively, it is corresponding with offset to include the PUSCH subframes with different first time differences for the offset-lists Relation, the first time difference are that the time of PHICH subframes and the PHICH subframes is preset corresponding to the PUSCH subframes Difference, wherein, the default PHICH subframes have default sequential corresponding relation with the PUSCH subframes.
Alternatively, it is corresponding with offset to include the PUSCH subframes with different second time differences for the offset-lists Relation, second time difference are the time difference of the PUSCH subframes and the PHICH subframes.
Alternatively, the determining unit includes：Determination subelement, suitable for according to up in first time slot of PUSCH subframes Minimum PRB indexes, DMRS cyclic shift and offset corresponding to the PUSCH subframes used in transmission, described in calculating The PHICH resource of HARQ feedback identifies in the group mark and group in the PHICH subframes.
Alternatively, first receiving unit receives the offset-lists by RRC signaling.
Alternatively, the offset-lists include the maximum number of PUSCH subframes to be feedback corresponding to single PHICH subframes Amount.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of user equipment, the user equipment includes upper The device for the merging feedback stated.
Compared with prior art, the technical scheme of the embodiment of the present invention has the advantages that：
The embodiment of the present invention is based on offset-lists, for all PUSCH subframes to be feedback, according to every PUSCH subframes Corresponding offset, calculate the PHICH resource used for the HARQ feedback of each PUSCH subframes in PHICH subframes.Due to Different PUSCH subframes have clear and definite corresponding relation with the offset in offset-lists, user equipment can be made to pass through offset Table determines offset corresponding to every PUSCH subframes, so as to further determine that the HARQ for merging every PUSCH subframes in feedback is anti- The PHICH resource used in PHICH subframes is presented, so as to correctly obtain information.
Further, the offset-lists according to corresponding to every PUSCH subframes, calculating are anti-for the HARQ of each PUSCH subframes When presenting the PHICH resource used in the PHICH subframes, the embodiment of the present invention uses the input parameter of formula and existing skill Input parameter in art is basically identical, increase only parameter known to numerical value, that is to say, that input parameter is gathered without extra, It can calculate and be identified in PHICH group mark and group, the influence to system complexity is simultaneously little.
Brief description of the drawings
Fig. 1 is a kind of flow chart for the method for merging feedback in the embodiment of the present invention.
Fig. 2 is a kind of DFD for the method for merging feedback in the embodiment of the present invention.
Fig. 3 is the flow chart of another method for merging feedback in the embodiment of the present invention.
Fig. 4 is the DFD of another method for merging feedback in the embodiment of the present invention.
Fig. 5 is a kind of structural representation for the device for merging feedback in the embodiment of the present invention.
Fig. 6 is the structural representation of another device for merging feedback in the embodiment of the present invention.
Embodiment
As described in the background art, due to first listening the mechanism said afterwards, when base station can not preset corresponding to PUSCH subframes PHICH subframe times obtain the right to use of unlicensed spectrum resource, it has to postpone after one or several subframes in a PHICH When subframe sends the merging feedback for multiple PUSCH subframes simultaneously, it is possible to which the HARQ feedback of different PUSCH subframes corresponds to Same PHICH resource, user equipment can not determine every PUSCH subframes corresponding PHICH moneys in the PHICH subframes Source, feedback information also can not just be correctly received.
The present inventor has found that the key of above mentioned problem is the root in existing merging feedback technique by research It is possible to calculate in identical PHICH groups mark and group according to different PUSCH subframes and identifies, due to PHICH groups mark and group Interior mark together decides on a PHICH resource, namely the HARQ feedback of different PUSCH subframes corresponds to same PHICH simultaneously Resource, so as to which PHICH resource collision problem occur.
The embodiment of the present invention is based on offset-lists, to all PUSCH subframes to be feedback, according to every PUSCH subframes pair The offset answered, calculate the PHICH resource used for the HARQ feedback of each PUSCH subframes in PHICH subframes.Due to not There is clear and definite corresponding relation with the offset in PUSCH subframes and offset-lists, user equipment can be made to pass through offset-lists Offset corresponding to every PUSCH subframes is determined, so as to further determine that the HARQ feedback for merging every PUSCH subframes in feedback The PHICH resource used in PHICH subframes, so as to correctly obtain information.
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.
Reference picture 1, Fig. 1 is a kind of flow chart for the method for merging feedback in the embodiment of the present invention, described to merge what is fed back Method can apply to base station side including step S101 to step S103, this method.
Step S101：The user equipment offset-lists of all feedbacks to be received are informed, the offset-lists are used to indicate The corresponding relation of difference PUSCH subframes and offset when calculating PHICH resource.
Step S102：For all PUSCH subframes to be feedback, according to offset corresponding to every PUSCH subframes, calculate The PHICH resource used for the HARQ feedback of each PUSCH subframes in PHICH subframes.
Step S103：PHICH is sent to the user equipment of all feedbacks to be received in the PHICH subframes.
Each step of the merging feedback method is described in detail below.
In step S101 specific implementation, base station indicates calculating PHICH resource by offset-lists to user equipment Shi Butong PUSCH subframes have corresponding relation with offset.Wherein, the PUSCH subframes refer to that user equipment is sent in PUSCH The subframe of data.
In specific implementation, the offset-lists can include with different first time differences PUSCH subframes with partially The corresponding relation of shifting amount, the first time difference are that PHICH subframes and the PHICH are preset corresponding to the PUSCH subframes The time difference of subframe, wherein, the default PHICH subframes have default sequential corresponding relation with the PUSCH subframes. In this case, the first time difference can be referred to as feedback delay time again.
It is understood that PHICH subframes refer to that base station is used to send PHICH to indicate the subframe of HARQ feedback, more For body, PHICH subframes are used for the HARQ feedback for carrying PUSCH subframes.
Optionally, the offset-lists can also include PUSCH subframes to be feedback corresponding to single PHICH subframes most Big quantity.
For example, base station can inform that one PHICH subframe of user equipment may correspond to the maximum quantity of PUSCH subframes, example N, and offset corresponding to the PUSCH subframes with different feedback delay times are such as can be set as, N is positive integer.As One not limiting example, for all PUSCH subframes to be feedback, when feedback delay time is 0 subframe, base station can be with It is 0 to configure offset corresponding to PUSCH subframes.When feedback delay time is 1 subframe, base station can configure PUSCH subframes Corresponding offset is P1.When feedback delay time is 2 subframes, base station can configure offset corresponding to PUSCH subframes For P2.By that analogy, until when feedback delay time is N-1 subframe, base station can configure and be offset corresponding to PUSCH subframes Measure as PN-1。
It is understood that the method for above-mentioned configuration offset is only example, and it is nonrestrictive.Such as it can also use Following manner configures offset：For the PUSCH subframes of all feedbacks to be received, when feedback delay time is N-1 subframe When, base station can configure offset corresponding to PUSCH subframes as 0；When feedback delay is N-2 subframe, base station can configure Offset corresponding to PUSCH subframes is Q1；By that analogy, until when feedback delay time is 0 subframe, base station can configure Offset corresponding to PUSCH subframes is QN-1。
In specific implementation, base station configures more than, specify that different PUSCH subframes and the offset in offset-lists Corresponding relation, user equipment can be made to determine offset corresponding to every PUSCH subframes by offset-lists.
Wherein, the feedback delay time is that PHICH subframes and actual use are preset corresponding to the PUSCH subframes The time difference of PHICH subframes.The default PHICH subframes have default sequential corresponding relation with the PUSCH subframes.
For example, in FDD LTE, user equipment carries out transmitting uplink data, base station in subframe n (namely PUSCH subframes) PHICH is sent in subframe n+4 (namely default PHICH subframes), that is to say, that default PHICH subframes and the PUSCH subframes Send 4 subframes in interval.
But due to first listening the mechanism said afterwards, when base station can not obtain the use of unlicensed spectrum resource on subframe n+4 Power, it has to postpone m subframes (m>=1) it is described when subframe n+4+m (namely PHICH subframes of actual use) sends PHICH First time difference is m, the transmission interval subframe of the default PHICH subframes and the PHICH subframes of the actual use, I.e. feedback delay time is m subframe.
In TDD LTE, user equipment carries out transmitting uplink data in subframe n (namely PUSCH subframes), and base station is in subframe n+k(k>=4) (namely default PHICH subframes) sends PHICH, that is to say, that default PHICH subframes and the PUSCH subframes K, transmission interval subframe.
Due to first listening the mechanism said afterwards, when base station can not obtain the right to use of unlicensed spectrum resource on subframe n+k, no Obtain and do not postpone m subframes (m>=1) when subframe n+k+m (namely PHICH subframes of actual use) sends PHICH, described first Time difference is m, the transmission interval subframe of the default PHICH subframes and the PHICH subframes of the actual use, namely instead Feedback time delay is m subframe.
In another specific example, the offset-lists can include the PUSCH subframes with different second time differences With the corresponding relation of offset, second time difference is the time difference of the PUSCH subframes and PHICH subframes, described PHICH subframes are used for the HARQ feedback for carrying the PUSCH subframes.
For example, in FDD LTE, user equipment carries out transmitting uplink data in subframe n (namely PUSCH subframes).Normal In the case of rule, base station sends PHICH in subframe n+4 (namely PHICH subframes), and the time difference is 4 subframes.And it is being related to First listen in the case of saying mechanism afterwards, when base station can not obtain the right to use of unlicensed spectrum resource on subframe n+4, it has to prolong Slow m subframes (m>=1) when subframe n+4+m (namely PHICH subframes) sends PHICH, in this case, second time Difference is 4+m subframe.
In TDD LTE, user equipment carries out transmitting uplink data in subframe n (namely PUSCH subframes), in regular situation Under, base station is in subframe n+k (k>=4) (namely PHICH subframes) sends PHICH, and the time difference is k subframe.And relating to And in the case of first listening and saying mechanism afterwards, when base station can not obtain the right to use of unlicensed spectrum resource on subframe n+k, it has to Postpone m subframes (m>=1) when subframe n+k+m (namely PHICH subframes) sends PHICH, in this case, when described second Between difference be k+m subframe.
Furthermore, the embodiments of the invention provide two kinds of alternative methods for calculating time difference, in reality In, computational methods can be selected according to actual conditions, be favorably improved the accuracy of information.In addition, above two calculates Method is only example, and nonrestrictive.
Specifically, the offset-lists can be believed by wireless heterogeneous networks (Radio Resource Control, RRC) The user equipment of all feedbacks to be received is informed in order, so as to effectively reduce signaling consumption, saves Radio Resource.
In step S102 specific implementation, according to offset corresponding to every PUSCH subframes, calculate for each The PHICH resource that the HARQ feedback of PUSCH subframes uses in PHICH subframes includes：According to the user equipment in PUSCH Corresponding to minimum PRB indexes, DMRS cyclic shift and the PUSCH subframes used in first time slot uplink of frame partially Shifting amount, calculate the PHICH resource of the HARQ feedback and identified in the group mark and group in the PHICH subframes.
In specific implementation, base station can be directed to all PUSCH subframes to be feedback and carry out above-mentioned calculating, without passing through PHICH subframes carry the HARQ feedback of which PUSCH subframe described in signaled user equipment, contribute to reduction signaling to open Pin, save Radio Resource.
It will be appreciated by those skilled in the art that the HARQ feedback of the PUSCH subframes may belong to different user devices, It may belong to identical user equipment.
Further, it is determined that the formula of mark can be with the group mark and group in the PHICH subframes for PHICH resource For：
Wherein,Represent the group mark of PHICH resource；Identified in expression group；Represent in institute State the number of PHICH groups in PHICH subframes；Offset represents offset corresponding to every PUSCH subframes；Table Show that user equipment indexes in minimal physical resource block used in the first time slot uplink of PUSCH subframes；nDMRSRepresent to use DMRS cyclic shift used in the equipment of family；Represent spreading factor (Spreading Factor during PHICH modulation Size Used For PHICH Modulation) size.
Specifically, in the formula not comprising parameter shift amount, different PUSCH subframes are possible to calculate identical PHICH groups, which identify, and group is interior is identified, but after formula adds parameter shift amount, the new PHICH groups being calculated are marked Know and the interior mark of group will be influenceed by parameter shift amount.Due to being provided with to the PUSCH subframes with different time difference Different offsets, so by being appropriately arranged with to offset, the HARQ feedback for different PUSCH subframes can be avoided to make PHICH resource clashes.That is, the embodiment of the present invention is it is determined that introduce offset during PHICH resource, it is different PUSCH subframes can have different offsets so that obtain do not conflict PHICH resource group mark and group internal standard Knowledge is possibly realized, so as to advantageously account for merging the HARQ feedback of the different PUSCH subframes in feedback while correspond to same The collision problem of PHICH resource.
Further, it can be seen from background technology, the embodiment of the present invention uses the input parameter and prior art of formula In input parameter it is basically identical, increase only parameter shift amount known to numerical value, that is to say, that without extra collection input ginseng Number, you can calculate and identified in the group mark and group of PHICH resource, the influence to system complexity is simultaneously little.
It will be appreciated by those skilled in the art that the HARQ feedback for multiple PUSCH subframes is being calculated described After the PHICH resource used in PHICH subframes, it is anti-corresponding HARQ can be carried using the PHICH resource being calculated Feedback.
In step S103 specific implementation, PHICH is sent to the use of all feedbacks to be received in the PHICH subframes Family equipment.
Reference picture 2, Fig. 2 are a kind of DFDs for the method for merging feedback in the embodiment of the present invention.With reference to Fig. 2 pairs The specific embodiment for merging feedback method is described in detail.
In step S201 specific implementation, offset-lists are informed in base station 21 to user equipment 22.The offset-lists are used The corresponding relation of difference PUSCH subframes and offset when instruction is calculating PHICH resource.
Wherein, user equipment 22 refers to the user equipment of all feedbacks to be received.
In step S202 specific implementation, base station 21 is directed to all PUSCH subframes to be feedback, according to every PUSCH Offset corresponding to subframe, calculate the PHICH resource used for the HARQ feedback of each PUSCH subframes in PHICH subframes.
In step S203 specific implementation, base station 21 is sent out to user equipment 22 with merging feedback system in PHICH subframes Send PHICH.Specifically, PHICH corresponding to multiple PUSCH subframes is sent in a PHICH subframe.
Reference picture 3, Fig. 3 is the flow chart of another method for merging feedback in the embodiment of the present invention, described to merge feedback Method can include step S301 and can apply to user equipment side to step S303, this method.
Step S301：Offset-lists are received from base station, the offset-lists are used to indicate different when calculating PHICH resource The corresponding relation of PUSCH subframes and offset.
Step S302：The PHICH in PHICH sub-frame transmissions is received from base station, the PHICH subframes are for all to be feedback PUSCH subframes；
Step S303：According to offset corresponding to user equipment itself every PUSCH subframes to be feedback, it is determined that for each The PHICH resource that the HARQ feedback of individual PUSCH subframes uses in the PHICH subframes.
Each step of the merging feedback method is described in detail below.
In step S301 specific implementation, it is determined that during PHICH resource, the offset-lists that user equipment receives are used for Instruction corresponding relation of difference PUSCH subframes and offset when calculating PHICH resource.
In specific implementation, the offset-lists can include with different first time differences PUSCH subframes with partially The corresponding relation of shifting amount, the first time difference are that PHICH subframes and the PHICH are preset corresponding to the PUSCH subframes The time difference of subframe, wherein, the default PHICH subframes have default sequential corresponding relation with the PUSCH subframes.
Optionally, the offset-lists can also include PUSCH subframes to be feedback corresponding to single PHICH subframes most Big quantity.
Method about the configuration offset in the embodiment of the present invention, the computational methods of first time difference, and when second Between difference computational methods, refer to previously for merge feedback method associated description, repeat no more here.
In specific implementation, by configuring offset, different PUSCH subframes and the offset in offset-lists are specify that Corresponding relation, user equipment can determine offset corresponding to every PUSCH subframes by offset-lists.
Furthermore, the embodiments of the invention provide two kinds of alternative methods for calculating time difference, in reality In, computational methods can be selected according to actual conditions, be favorably improved the accuracy of information.In addition, above two calculates Method is only example, and nonrestrictive.
Specifically, the offset-lists can be believed by wireless heterogeneous networks (Radio Resource Control, RRC) The user equipment of all feedbacks to be received is informed in order, so as to effectively reduce signaling consumption, saves Radio Resource.
In step S302 specific implementation, the PHICH in PHICH sub-frame transmissions, the PHICH subframes are received from base station For all PUSCH subframes to be feedback.
In step S303 specific implementation, according to corresponding to user equipment itself every PUSCH subframes to be feedback partially Shifting amount, it is determined that the PHICH resource used for the HARQ feedback of each PUSCH subframes in the PHICH subframes.
The formula of mark, refer to and close above in group mark and group about determining PHICH resource in the embodiment of the present invention In the associated description for merging feedback method, repeat no more here.
Specifically, in the formula not comprising parameter shift amount, different PUSCH subframes are possible to calculate identical PHICH groups, which identify, and group is interior is identified, but after formula adds parameter shift amount, the new PHICH groups being calculated are marked Know and the interior mark of group will be influenceed by parameter shift amount.Due to being provided with to the PUSCH subframes with different time difference Different offsets, the new PHICH groups mark and the group sensible different possibility of internal standard are very big.That is, for difference PUSCH subframes, the embodiment of the present invention there is a strong possibility obtain do not conflict PHICH resource group mark and group in identify.This Inventive embodiments largely solve the HARQ feedback for merging the different PUSCH subframes in feedback while corresponded to same The collision problem of individual PHICH resource.
Further, it can be seen from background technology, the embodiment of the present invention uses the input parameter and prior art of formula In input parameter it is basically identical, increase only parameter shift amount known to numerical value, that is to say, that without extra collection input ginseng Number, you can calculate and identified in the group mark and group of PHICH resource, the influence to system complexity is simultaneously little.
Fig. 4 is the DFD of another method for merging feedback in the embodiment of the present invention.With reference to Fig. 4 to the conjunction And the specific embodiment of feedback method is described in detail.
In step S401 specific implementation, the offset-lists that user equipment 41 receives from base station 42 are used to indicate calculating The corresponding relation of difference PUSCH subframes and offset during PHICH resource.
In step S402 specific implementation, user equipment 41 is received in the PHICH sub-frame transmissions from base station 42 PHICH.The PHICH subframes are directed to all PUSCH subframes to be feedback.Specifically, the base station 42 passes through a PHICH Subframe sends PHICH corresponding to multiple PUSCH subframes to merge feedback system.
In step S403 specific implementation, user equipment 41 is according to user equipment itself every PUSCH to be feedback Offset corresponding to frame, it is determined that being provided for the PHICH that the HARQ feedback of each PUSCH subframes uses in the PHICH subframes Source.
Fig. 5 is a kind of structural representation for the device for merging feedback in the embodiment of the present invention, with reference to Fig. 5 to the conjunction And the specific embodiment of the apparatus structure fed back is described in detail.
The device 50 for merging feedback can include informing unit 501, computing unit 502 and transmitting element 503.Its In, the computing unit 502 can include computation subunit 504.
Furthermore, informing unit 501 is suitable to the user equipment offset-lists for informing all feedbacks to be received, described inclined Scale is moved to be used to indicate the corresponding relation of difference PUSCH subframes and offset when calculating PHICH resource.Computing unit 502 is suitable In for all PUSCH subframes to be feedback, according to offset corresponding to every PUSCH subframes, calculate for each PUSCH The PHICH resource that the HARQ feedback of frame uses in PHICH subframes.Transmitting element 503 is suitable to will in the PHICH subframes PHICH is sent to the user equipment of all feedbacks to be received.
In specific implementation, the computation subunit 504 is suitable to according to the user equipment in PUSCH subframes first Minimum PRB indexes, DMRS cyclic shift and offset corresponding to the PUSCH subframes used in gap uplink, calculate The PHICH resource of the HARQ feedback identifies in the group mark and group in the PHICH subframes.
Specifically, the informing unit 501 informs offset-lists described in the user equipment by RRC signaling.
More detailed contents of the device 50 fed back on the merging are incorporated by reference to Fig. 1 to Fig. 2 and with reference to previously for merging The associated description of feedback method, is repeated no more here.
Fig. 6 is the structural representation of another device for merging feedback in the embodiment of the present invention, with reference to Fig. 6 to described The specific embodiment for merging the apparatus structure of feedback is described in detail.
The device 60 for merging feedback can include the first receiving unit 601, the second receiving unit 602 and determining unit 603.Wherein, the determining unit 603 can include determining that subelement 604.
Furthermore, the first receiving unit 601 is suitable to receive offset-lists from base station, and the offset-lists are used to indicate The corresponding relation of difference PUSCH subframes and offset when calculating PHICH resource.Second receiving unit 602 is suitable to connect from base station The PHICH of PHICH sub-frame transmissions is received in, the PHICH subframes are directed to all PUSCH subframes to be feedback.Determining unit 603 is suitable In the offset according to corresponding to user equipment itself every PUSCH subframes to be feedback, it is determined that for each PUSCH subframes The PHICH resource that HARQ feedback uses in the PHICH subframes.
In specific implementation, the determination subelement 604 is suitable to according in first time slot uplink institute of PUSCH subframes Offset corresponding to minimum PRB indexes, DMRS cyclic shift and the PUSCH subframes used, calculates the HARQ feedback PHICH resource in the PHICH subframes group mark and group in identify.
Specifically, first receiving unit 601 receives the offset-lists by RRC signaling.
More detailed contents of the device 60 fed back on the merging are incorporated by reference to Fig. 3 to Fig. 4 and with reference to previously for another Kind merges the associated description of feedback method, repeats no more here.
The embodiment of the present invention additionally provides a kind of base station, and the base station includes merging the device 50 of feedback shown in Fig. 5, described Base station can perform above-mentioned merging feedback method.
The embodiment of the present invention additionally provides a kind of user equipment, and the user equipment includes the dress for merging feedback shown in Fig. 6 60 are put, the user equipment can perform above-mentioned another merging feedback method.
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 computer-readable recording medium, to store 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 (26)

  1. A kind of 1. method for merging feedback, it is characterised in that including：
    The user equipment offset-lists of all feedbacks to be received are informed, the offset-lists are used to indicate calculating PHICH resource The corresponding relation of Shi Butong PUSCH subframes and offset；
    For all PUSCH subframes to be feedback, according to offset corresponding to every PUSCH subframes, calculating is directed to each PUSCH The PHICH resource that the HARQ feedback of subframe uses in PHICH subframes；
    PHICH is sent to the user equipment of all feedbacks to be received in the PHICH subframes.
  2. 2. the method according to claim 1 for merging feedback, it is characterised in that the offset-lists include having different the The PUSCH subframes of one time difference and the corresponding relation of offset,
    The first time difference is that the time difference of PHICH subframes and the PHICH subframes is preset corresponding to the PUSCH subframes Value, wherein, the default PHICH subframes have default sequential corresponding relation with the PUSCH subframes.
  3. 3. the method according to claim 1 for merging feedback, it is characterised in that the offset-lists include having different the The PUSCH subframes of two time differences and the corresponding relation of offset,
    Second time difference is the time difference of the PUSCH subframes and the PHICH subframes.
  4. 4. the method according to claim 1 for merging feedback, it is characterised in that described corresponding according to every PUSCH subframes Offset, the PHICH resource that is used in PHICH subframes of HARQ feedback calculated for each PUSCH subframes includes：
    Minimum PRB indexes, DMRS follow according to used in the user equipment in the first time slot uplink of PUSCH subframes Offset corresponding to ring displacement and the PUSCH subframes, calculates the PHICH resource of the HARQ feedback in the PHICH subframes Identified in interior group mark and group.
  5. 5. the method according to claim 1 for merging feedback, it is characterised in that the offset-lists are to pass through RRC signaling Inform the user equipment.
  6. 6. the method according to claim 1 for merging feedback, it is characterised in that the offset-lists include single PHICH The maximum quantity of PUSCH subframes to be feedback corresponding to subframe.
  7. A kind of 7. method for merging feedback, it is characterised in that including：
    Receive offset-lists from base station, the offset-lists be used to indicate when calculating PHICH resource difference PUSCH subframes with it is inclined The corresponding relation of shifting amount；
    The PHICH in PHICH sub-frame transmissions is received from base station, the PHICH subframes are directed to all PUSCH subframes to be feedback；
    According to offset corresponding to user equipment itself every PUSCH subframes to be feedback, it is determined that for each PUSCH subframes The PHICH resource that HARQ feedback uses in the PHICH subframes.
  8. 8. the method according to claim 7 for merging feedback, it is characterised in that the offset-lists, which include, has different the The PUSCH subframes of one time difference and the corresponding relation of offset,
    The first time difference is that the time difference of PHICH subframes and the PHICH subframes is preset corresponding to the PUSCH subframes Value, wherein, the default PHICH subframes have default sequential corresponding relation with the PUSCH subframes.
  9. 9. the method according to claim 7 for merging feedback, it is characterised in that the offset-lists include having different the The PUSCH subframes of two time differences and the corresponding relation of offset,
    Second time difference is the time difference of the PUSCH subframes and the PHICH subframes.
  10. 10. the method according to claim 7 for merging feedback, it is characterised in that according to corresponding to every PUSCH subframes partially Shifting amount, it is determined that the PHICH resource used for the HARQ feedback of each PUSCH subframes in the PHICH subframes includes：
    Minimum PRB indexes, DMRS cyclic shift and described according to used in the first time slot uplink of PUSCH subframes Offset corresponding to PUSCH subframes, calculate the PHICH resource of the HARQ feedback in the PHICH subframes group mark and Identified in group.
  11. 11. the method according to claim 7 for merging feedback, it is characterised in that the offset-lists are to pass through RRC signaling Receive.
  12. 12. the method according to claim 7 for merging feedback, it is characterised in that the offset-lists include single PHICH The maximum quantity of PUSCH subframes to be feedback corresponding to subframe.
  13. 13. one kind merges feedback device, it is characterised in that including：
    Informing unit, suitable for informing the user equipment offset-lists of all feedbacks to be received, the offset-lists are used to indicate The corresponding relation of difference PUSCH subframes and offset when calculating PHICH resource；
    Computing unit, suitable for for all PUSCH subframes to be feedback, according to offset corresponding to every PUSCH subframes, calculating The PHICH resource used for the HARQ feedback of each PUSCH subframes in PHICH subframes；
    Transmitting element, suitable for sending PHICH to the user equipment of all feedbacks to be received in the PHICH subframes.
  14. 14. merging feedback device according to claim 13, it is characterised in that the offset-lists include having different the The PUSCH subframes of one time difference and the corresponding relation of offset,
    The first time difference is that the time difference of PHICH subframes and the PHICH subframes is preset corresponding to the PUSCH subframes Value, wherein, the default PHICH subframes have default sequential corresponding relation with the PUSCH subframes.
  15. 15. merging feedback device according to claim 13, it is characterised in that the offset-lists include having different the The PUSCH subframes of two time differences and the corresponding relation of offset,
    Second time difference is the time difference of the PUSCH subframes and the PHICH subframes.
  16. 16. merging feedback device according to claim 13, it is characterised in that the computing unit includes：
    Computation subunit, suitable for according to the user equipment in the first time slot uplink of PUSCH subframes used in it is minimum PRB indexes, DMRS cyclic shift and offset corresponding to the PUSCH subframes, calculate the PHICH resource of the HARQ feedback Identified in group mark and group in the PHICH subframes.
  17. 17. merging feedback device according to claim 13, it is characterised in that the informing unit is accused by RRC signaling Know offset-lists described in the user equipment.
  18. 18. merging feedback device according to claim 13, it is characterised in that the offset-lists include single PHICH The maximum quantity of PUSCH subframes to be feedback corresponding to subframe.
  19. 19. one kind merges feedback device, it is characterised in that including：
    First receiving unit, suitable for receiving offset-lists from base station, the offset-lists are used to indicate when calculating PHICH resource The corresponding relation of different PUSCH subframes and offset；
    Second receiving unit, suitable for receiving the PHICH in PHICH sub-frame transmissions from base station, the PHICH subframes are for being needed The PUSCH subframes of feedback；
    Determining unit, suitable for the offset according to corresponding to user equipment itself every PUSCH subframes to be feedback, it is determined that for each The PHICH resource that the HARQ feedback of individual PUSCH subframes uses in the PHICH subframes.
  20. 20. merging feedback device according to claim 19, it is characterised in that the offset-lists, which include, has different the The PUSCH subframes of one time difference and the corresponding relation of offset,
    The first time difference is that the time difference of PHICH subframes and the PHICH subframes is preset corresponding to the PUSCH subframes Value, wherein, the default PHICH subframes have default sequential corresponding relation with the PUSCH subframes.
  21. 21. merging feedback device according to claim 19, it is characterised in that the offset-lists include having different the The PUSCH subframes of two time differences and the corresponding relation of offset,
    Second time difference is the time difference of the PUSCH subframes and the PHICH subframes.
  22. 22. merging feedback device according to claim 19, it is characterised in that the determining unit includes：
    Determination subelement, suitable for according in minimum PRB indexes, DMRS used in the first time slot uplink of PUSCH subframes Cyclic shift and the PUSCH subframes corresponding to offset, calculate the PHICH resource of the HARQ feedback in the PHICH Identified in group mark and group in subframe.
  23. 23. merging feedback device according to claim 19, it is characterised in that first receiving unit is believed by RRC Order receives the offset-lists.
  24. 24. merging feedback device according to claim 19, it is characterised in that the offset-lists include single PHICH The maximum quantity of PUSCH subframes to be feedback corresponding to subframe.
  25. 25. a kind of base station, it is characterised in that including the merging feedback device described in any one of claim 13 to 18.
  26. 26. a kind of user equipment, it is characterised in that including the merging feedback device described in any one of claim 19 to 24.
CN201610405714.XA 2016-06-08 2016-06-08 Method, device, base station and user equipment for combining feedback Active CN107483165B (en)

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Inventor after: Han Chuanhua

Inventor before: Han Chuanhua

Inventor before: Deng Yun