CN107295664A - The feedback method and system of uplink, base station and user equipment - Google Patents
The feedback method and system of uplink, base station and user equipment Download PDFInfo
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- CN107295664A CN107295664A CN201610205657.0A CN201610205657A CN107295664A CN 107295664 A CN107295664 A CN 107295664A CN 201610205657 A CN201610205657 A CN 201610205657A CN 107295664 A CN107295664 A CN 107295664A
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- control signaling
- user equipment
- descending control
- itself
- automatic repeat
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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
- 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
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1864—ARQ related signaling
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of feedback method and system, base station and user equipment of uplink.Methods described includes：User equipment sends upstream data in unlicensed spectrum to base station；The user equipment is obtained feeds back the position in descending control signaling or Physical HARQ Indicator Channel for the hybrid automatic repeat-request of itself；The user equipment receives the descending control signaling or Physical HARQ Indicator Channel that base station is sent after the upstream data is received, and the descending control signaling or Physical HARQ Indicator Channel include feeding back for the hybrid automatic repeat-request of at least one user equipment；The user equipment feeds back the position in the descending control signaling or Physical HARQ Indicator Channel according to the hybrid automatic repeat-request for itself, and the hybrid automatic repeat-request feedback for itself is parsed from the descending control signaling or Physical HARQ Indicator Channel.The present invention can feed back to transmission of the user equipment in unlicensed spectrum exactly.
Description
Technical field
The present invention relates to feedback method and system, the base station and use of communication technical field, more particularly to a kind of uplink
Family equipment.
Background technology
In existing LTE (Long Term Evolution, Long Term Evolution) system, base station passes through DCI (Downlink
Control Information, descending control signaling) dispatching downlink data transmission and the transmission of upstream data.For upper
The transmission of row data, base station sends the mandate (Grant) that UE carries out transmitting uplink data by DCI format 0.
In FDD (Frequency Division Duplexing, FDD) LTE, UE is received in subframe n to be belonged to
The DCI 0 of oneself, knows the mandate of uplink, and UE carries out data according to the information in authorizing in subframe n+4 in specified resource
Transmission.The upstream data that base station parsing UE is sent, if it is possible to accurately receive upstream data, then PHICH of the base station in subframe n+8
ACK is indicated on (Physical Hybrid ARQ Indicator Channel, Physical HARQ Indicator Channel)；If can not be accurate
Really receive upstream data or be not received by upstream data, then base station indicates NACK on subframe n+8 PHICH.
In TDD (Time Division Duplexing, time division duplex) LTE, UE is received to one's name in subframe n
DCI 0, UE is in subframe n+k (k>=4) carry out data transmission, UE is in subframe n+k+l (l>=4) on receive PHICH.
Wherein, multiple PHICH channel occupancies that PHICH transmission is come in the form of PHICH groups in tissue, 1 PHICH group
Identical time-frequency domain physical resource, using the multiplex mode of orthogonal spreading sequence.One PHICH channel by PHICH groups mark
Together decided on mark in group.(UE is at first by oneself transmitting the position of the Physical Resource Block shared by upstream data by UE
The index of the minimal physical resource block of slot transmission upstream data) and DMRS (Demodulation reference
Signal, demodulated reference signal) index the mark for determining PHICH groups and identified in group.
Usual LTE is always deployed in the mandate frequency spectrum that operator possesses, but frequency spectrum resource is very rare, therefore operator opens
Beginning consideration makes full use of unlicensed spectrum, using before unlicensed spectrum, it is necessary to using LBT (Listen Before Talk,
Listen Before Talk) mechanism, whether monitoring has other users such as WLAN to use, if channel busy, needs to wait；If letter
Road is idle, then can use a period of time.When this is using completing, it is necessary to discharge the frequency spectrum, then monitors again and obtain next
The right to use of secondary frequency spectrum.
When up channel also uses unlicensed spectrum, can UE needs to use LBT mechanism, the frequency spectrum is used to know
The transmission of upstream data is carried out, once can transmit, then base station needs to send ACK/NACK to UE so that UE is able to know whether
Transmission success.UE, generally with authorizing frequency spectrum to be used in combination, carries out carrier aggregation when using unlicensed spectrum.Therefore UE can be with
PHICH is received on PCell (main plot, positioned at some frequency spectrum of mandate) on frequency spectrum is authorized to know that UE non-is awarded up
Whether the transmission on power frequency spectrum succeeds, and feedback can also be received on unlicensed spectrum.Usual base station carries out up in scheduling UE
, it is necessary to which whether check different UE PHICH resource can conflict during transmission, in the case where not conflicting, descending control could be sent
Signaling (i.e. DCI).
During the present invention is realized, inventor has found at least there is following technical problem in the prior art：
When UE carries out uplink using unlicensed spectrum, base station is not aware that when UE can be enterprising in unlicensed spectrum
Row transmission, if using current mechanism, being identified in the mark and group of oneself PHICH group on PHICH that UE is obtained may be with
Mark conflict in the mark and group of other UE PHICH groups, base station is directed to HARQ (the Hybrid Automatic of the UE
Repeat Request, hybrid automatic repeat-request) feedback resources may be with other UE HARQ feedback resource contention, cause base
Stand to feed back to transmission of the UE in unlicensed spectrum exactly.
The content of the invention
The feedback method and system of the uplink that the present invention is provided, base station and user equipment, can be exactly to user
Transmission of the equipment in unlicensed spectrum is fed back.
In a first aspect, the present invention provides a kind of feedback method of uplink, including：
User equipment sends upstream data in unlicensed spectrum to base station；
The user equipment is obtained to be fed back in descending control signaling or physics for the hybrid automatic repeat-request of itself
HARQ indicates the position in channel；
The user equipment receives the descending control signaling or physics that base station is sent after the upstream data is received
HARQ indicates channel, and the descending control signaling or Physical HARQ Indicator Channel are included for the mixed of at least one user equipment
Close HARQ feedback；
The user equipment is fed back in the descending control signaling according to the hybrid automatic repeat-request for itself
Or the position in Physical HARQ Indicator Channel, parsed from the descending control signaling or Physical HARQ Indicator Channel for certainly
The hybrid automatic repeat-request feedback of body.
Optionally, the descending control signaling includes feeding back for the hybrid automatic repeat-request of multiple user equipmenies；
The user equipment is obtained to be fed back in the descending control signaling for the hybrid automatic repeat-request of itself
Position includes：The user equipment is received in the radio resource control signaling that base station is sent, the radio resource control signaling and wrapped
Include shared Radio Network Temporary Identifier and the hybrid automatic repeat-request for the user equipment is fed back in the descending control
Position in signaling processed；
The descending control signaling that the user equipment reception base station is sent after the upstream data is received includes：Institute
State user equipment and receive the process shared Radio Network Temporary Identifier that base station is sent after the upstream data is received
The descending control signaling of scrambling；
The user equipment is fed back in the descending control signaling according to the hybrid automatic repeat-request for itself
In position, parsed from the descending control signaling for itself hybrid automatic repeat-request feedback include：It is described to use
Family equipment feeds back the position in the descending control signaling according to the hybrid automatic repeat-request for itself, uses institute
State shared Radio Network Temporary Identifier parsed from the descending control signaling for itself hybrid automatic repeat-request it is anti-
Feedback.
Optionally, the descending control signaling includes the hybrid automatic repeat-request feedback for a user equipment；
The user equipment is obtained feeds back the position in descending control signaling for the hybrid automatic repeat-request of itself
Including：The mixed automatic retransfer for a user equipment that the user equipment obtains the descending control signaling and included is asked
Ask and be fed back to feed back for the hybrid automatic repeat-request of itself；
The descending control signaling that the user equipment reception base station is sent after the upstream data is received includes：Institute
State user equipment and receive the proprietary Radio Network Temporary Identifier scrambling of process that base station is sent after the upstream data is received
Descending control signaling；
The user equipment is fed back in the descending control signaling according to the hybrid automatic repeat-request for itself
In position, parsed from the descending control signaling for itself hybrid automatic repeat-request feedback include：It is described to use
Family equipment is parsed using the proprietary Radio Network Temporary Identifier to the descending control signaling, is obtained for the mixed of itself
Close HARQ feedback.
Optionally, the user equipment is obtained for the hybrid automatic repeat-request feedback of itself in the descending control letter
Position in order includes：Mark or the user equipment uplink when institute of the user equipment according to the user equipment
The minimal physical resource block index used is calculated to be fed back in the descending control signaling for the hybrid automatic repeat-request of itself
In position.
Optionally, the user equipment is obtained indicates to believe for the hybrid automatic repeat-request feedback of itself in physics HARQ
Position in road includes：The user equipment receives the radio resource control signaling that base station is sent, the wireless heterogeneous networks letter
Order includes the position for the Physical HARQ Indicator Channel resource reserved for the user equipment, wherein, the physics HARQ is indicated
The position of channel resource includes identifying in Physical HARQ Indicator Channel group mark and group on Physical HARQ Indicator Channel；
The user equipment is indicated according to the hybrid automatic repeat-request feedback for itself in the physics HARQ
Position in channel, parses from the Physical HARQ Indicator Channel and feeds back bag for the hybrid automatic repeat-request of itself
Include：The user equipment indicates to believe according to the position of the reserved Physical HARQ Indicator Channel resource from the physics HARQ
The hybrid automatic repeat-request feedback for itself is parsed in road.
Second aspect, the present invention provides a kind of user equipment, including：
First transmitting element, for sending upstream data to base station in unlicensed spectrum；
Acquiring unit, feeds back in descending control signaling or physics for obtaining for the hybrid automatic repeat-request of itself
HARQ indicates the position in channel；First receiving unit, sends for receiving base station after the upstream data is received
Descending control signaling or Physical HARQ Indicator Channel, the descending control signaling or Physical HARQ Indicator Channel are included for extremely
The hybrid automatic repeat-request feedback of a few user equipment；
Resolution unit, for being fed back according to the hybrid automatic repeat-request for itself in the descending control signaling
Or the position in Physical HARQ Indicator Channel, parsed from the descending control signaling or Physical HARQ Indicator Channel for certainly
The hybrid automatic repeat-request feedback of body.
Optionally, the descending control signaling includes feeding back for the hybrid automatic repeat-request of multiple user equipmenies；
The acquiring unit, the radio resource control signaling for receiving base station transmission, the radio resource control signaling
Include shared Radio Network Temporary Identifier and the hybrid automatic repeat-request for the user equipment is fed back under described
Position in row control signaling；
First receiving unit, it is described common for receiving the process that base station sends after the upstream data is received
Enjoy the descending control signaling of Radio Network Temporary Identifier scrambling；
The resolution unit, for being fed back according to the hybrid automatic repeat-request for itself in the descending control
Position in signaling, using the shared Radio Network Temporary Identifier parsed from the descending control signaling for itself
Hybrid automatic repeat-request feeds back.
Optionally, the descending control signaling includes the hybrid automatic repeat-request feedback for a user equipment；
The acquiring unit, for obtain the mixing for a user equipment that the descending control signaling includes from
Dynamic repeat requests are fed back to feed back for the hybrid automatic repeat-request of itself；
First receiving unit, for receiving the proprietary nothing of process that base station is sent after the upstream data is received
The descending control signaling of line Network Temporary Identifier scrambling；
The resolution unit, for being solved using the proprietary Radio Network Temporary Identifier to the descending control signaling
Analysis, obtains feeding back for the hybrid automatic repeat-request of itself.
Optionally, the acquiring unit, for the up biography of the mark according to the user equipment or the user equipment
Used minimal physical resource block index is calculated when defeated feeds back in the descending control for the hybrid automatic repeat-request of itself
Position in signaling processed.
Optionally, the acquiring unit, the radio resource control signaling for receiving base station transmission, the Radio Resource control
Signaling processed includes the position for the Physical HARQ Indicator Channel resource reserved for the user equipment, wherein, the physics HARQ
The position of indicating channel resource includes identifying in Physical HARQ Indicator Channel group mark and group on Physical HARQ Indicator Channel；
The resolution unit, for the position according to the reserved Physical HARQ Indicator Channel resource, from the physics
HARQ indicates to parse the hybrid automatic repeat-request feedback for itself in channel.
The third aspect, the present invention provides a kind of base station, including：
Second receiving unit, for receiving the upstream data that user equipment is sent in unlicensed spectrum；
Second transmitting element, sends out for receiving the rear of the upstream data in second receiving unit to user equipment
Descending control signaling or Physical HARQ Indicator Channel are sent, the descending control signaling or Physical HARQ Indicator Channel include being directed to
The hybrid automatic repeat-request feedback of at least one user equipment.
Optionally, the descending control signaling includes feeding back for the hybrid automatic repeat-request of multiple user equipmenies；
The base station also includes：
3rd transmitting element, for sending radio resource control signaling, the radio resource control signaling to user equipment
Include shared Radio Network Temporary Identifier and the hybrid automatic repeat-request for the user equipment is fed back under described
Position in row control signaling；
Second transmitting element, the rear line for receiving the upstream data in second receiving unit is set
The descending control signaling of the excessively described shared Radio Network Temporary Identifier scrambling of the preparation warp let-off.
Optionally, the descending control signaling includes the hybrid automatic repeat-request feedback for a user equipment；
Second transmitting element, the rear line for receiving the upstream data in second receiving unit is set
The descending control signaling of the excessively proprietary Radio Network Temporary Identifier scrambling of the preparation warp let-off.
Optionally, the base station also includes：
4th transmitting element, for sending radio resource control signaling, the radio resource control signaling to user equipment
Include the position of Physical HARQ Indicator Channel resource reserved for the user equipment, wherein, the physics HARQ indicates letter
The position of road resource includes identifying in Physical HARQ Indicator Channel group mark and group on Physical HARQ Indicator Channel.
Fourth aspect, the present invention provides a kind of reponse system of uplink, including user equipment and base station；
The user equipment, for sending upstream data to base station in unlicensed spectrum, obtains and is directed to the mixing of itself
HARQ feeds back position in descending control signaling or Physical HARQ Indicator Channel, receive base station receive it is described
The descending control signaling or Physical HARQ Indicator Channel sent after upstream data, descending control signaling or the physics HARQ refers to
Show that channel includes feeding back for the hybrid automatic repeat-request of at least one user equipment, according to the mixing for itself
HARQ feeds back the position in the descending control signaling or Physical HARQ Indicator Channel, from the descending control letter
The hybrid automatic repeat-request feedback for itself is parsed in order or Physical HARQ Indicator Channel；
The base station, for receiving the upstream data that user equipment is sent in unlicensed spectrum, is being received on described
The rear of row data sends descending control signaling or Physical HARQ Indicator Channel, the descending control signaling or physics to user equipment
HARQ indicates that channel includes feeding back for the hybrid automatic repeat-request of at least one user equipment.
The feedback method and system of uplink provided in an embodiment of the present invention, base station and user equipment, user equipment exist
Upstream data is sent to base station in unlicensed spectrum, and obtains the hybrid automatic repeat-request feedback for itself in descending control
Position in signaling or Physical HARQ Indicator Channel, base station is received after the upstream data, and being sent to user equipment includes
For the descending control signaling or Physical HARQ Indicator Channel of the hybrid automatic repeat-request feedback of at least one user equipment, use
Family equipment is indicated according to the hybrid automatic repeat-request feedback for itself in the descending control signaling or physics HARQ
Position in channel, parses from the descending control signaling or Physical HARQ Indicator Channel and is weighed automatically for the mixing of itself
Pass request feedback.Compared with prior art, the present invention can be carried out to transmission of the user equipment in unlicensed spectrum exactly
Feedback, while avoiding obtaining other users equipment hybrid automatic repeat-request feedback generation interference.
Brief description of the drawings
Fig. 1 is the flow chart of the feedback method of uplink provided in an embodiment of the present invention；
Fig. 2 is the structural representation of user equipment provided in an embodiment of the present invention；
The structural representation for the base station that Fig. 3 provides for one embodiment of the invention；
The structural representation for the base station that Fig. 4 provides for another embodiment of the present invention；
The structural representation for the base station that Fig. 5 provides for further embodiment of this invention；
Fig. 6 is the structural representation of the reponse system of uplink provided in an embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
Only it is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The present invention provides a kind of feedback method of uplink, as shown in figure 1, methods described includes：
S11, user equipment send upstream data in unlicensed spectrum to base station；
S12, the user equipment, which are obtained, is directed to position of the HARQ feedback of itself in descending control signaling or PHICH；
S13, the user equipment receive the descending control signaling that is sent after the upstream data is received of base station or
PHICH, the descending control signaling or PHICH include the HARQ feedback at least one user equipment；
S14, the user equipment are according to the HARQ feedback of itself that is directed in the descending control signaling or PHICH
Position, the HARQ feedback for itself is parsed from the descending control signaling or PHICH.
The feedback method of uplink provided in an embodiment of the present invention, user equipment is sent in unlicensed spectrum to base station
Upstream data, obtains and is directed to position of the HARQ feedback of itself in descending control signaling or PHICH, base station is received on described
After row data, to user equipment send include at least one user equipment HARQ feedback descending control signaling or
PHICH, user equipment is directed to position of the HARQ feedback of itself in the descending control signaling or PHICH according to described, from
The HARQ feedback for itself is parsed in the descending control signaling or PHICH.Compared with prior art, the present invention can be accurate
Really transmission of the user equipment in unlicensed spectrum is fed back, while avoiding obtaining HARQ feedback to other users equipment
Produce interference.
Wherein, the above-mentioned HARQ feedback for itself refers to the HARQ feedback of the upstream data for self transmission.
Optionally, the HARQ feedback for multiple user equipmenies can be included in the descending control signaling；
The user equipment receives RRC (Radio Resource Control, the wireless heterogeneous networks) letters that base station is sent
Order, the RRC signaling includes shared RNTI, and (Radio Network Temporary Identity, wireless network is marked temporarily
Know) and for the user equipment HARQ feedback (HARQ feedback of the upstream data of i.e. described user device transmissions) in institute
The position in descending control signaling is stated, so as to obtain the position for the HARQ feedback of itself in the descending control signaling；
The process shared RNTI that the user equipment reception base station is sent after the upstream data is received adds
The descending control signaling disturbed；
Then the user equipment is directed to position of the HARQ feedback of itself in the descending control signaling according to described, makes
The HARQ feedback for itself is parsed from the descending control signaling with the shared RNTI.
Wherein, UE supports unlicensed frequencies and authorizes frequency to carry out carrier aggregation, and supports LBT, unauthorized to obtain
The right to use of frequency for a period of time.The continuous use time that country variant is set to unlicensed frequencies is incomplete same, such as day
This, continuous use time is 4ms on unlicensed frequencies, and other countries can be 8ms or 10ms.
UE sets up RRC connections by authorizing frequency F1 access networks.Due to business demand, serving BS configures for the UE
Unlicensed frequencies, so that UE can carry out transmitting uplink data using unlicensed frequencies.
UE is needed by LBT, and when UE is detected when unlicensed frequencies are in idle condition, (signal intensity of detection is less than pre-
Fixed thresholding, the thresholding can be configured by base station), it could be transmitted on unlicensed frequencies.Because UE results in up
The limited time of transmission, it is herein assumed that the scheduling decision of uplink is still made by base station and is sent to UE, and UE when can
Decision according to uplink scheduling, which performs uplink, to be needed to see LBT result.
Specifically, when UE carries out data transmission in unlicensed spectrum in subframe n, UE will subframe n+k (k=4,
FDD；K>=4, TDD) connect by PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel)
Receive HARQ feedback.If now base station sends HARQ feedback on frequency spectrum is authorized to the UE, UE exists according to above-mentioned sequential relationship
Subframe n+k receives HARQ feedback；If base station sends HARQ feedback in unlicensed spectrum to the UE, UE in subframe n+k or
Subframe afterwards receives HARQ feedback, because base station needs to perform the right to use that LBT obtains unlicensed spectrum, UE passes through base station
Configuration, which can be known from mandate frequency spectrum or unlicensed spectrum, obtains HARQ feedback.Base station receives the upstream data of UE transmissions
Afterwards, if it is possible to be correctly decoded, then feeding back ACK is needed；If can not be successfully decoded, need to feed back NACK.
If descending control signaling can include the feedback for 4 UE uplink, the feedback of each UE uplink is accounted for
With different bits.For example：Descending control signaling includes 20 bits, and every 5 bits are used for the HARQ feedback for indicating a UE,
Base station can indicate the position of UE HARQ feedbacks in descending control signaling by RRC signaling to each UE, and indicate to be somebody's turn to do
Shared RNTI.Base station indicates that the position of UE HARQ feedbacks in descending control signaling can be set in step S11 user to UE
It is standby send upstream data to base station in unlicensed spectrum before, it is or parallel with step S11, it is only necessary to ensure UE in reception
UE is notified before HARQ feedback.Wherein, base station can be being sent comprising described on the serving cell for authorizing frequency spectrum
The descending control signaling of HARQ feedback；Serving cell that can also be in unlicensed spectrum is sent comprising the HARQ feedback to UE
Descending control signaling.The serving cell for sending HARQ feedback is that base station is the serving cell that UE is configured.
Optionally, the HARQ feedback for a user equipment can be only included in the descending control signaling；
The HARQ feedback for a user equipment that the user equipment obtains the descending control signaling and included is
For the HARQ feedback of itself, so as to obtain the position for the HARQ feedback of itself in the descending control signaling, under this
The cell of ad-hoc location in row control signaling is used to indicate HARQ feedback, such as indicates ACK/ using 1 bit in a certain position
NACK；
The user equipment receives the proprietary RNTI scramblings of process that base station is sent after the upstream data is received
Descending control signaling；Wherein, the proprietary RNTI by each UE the proprietary RNTI that distributes of base station when accessing cell, such as
Cell RNTI；
The user equipment is parsed using the proprietary RNTI to the descending control signaling, obtains being directed to itself
HARQ feedback.
Due to only including the HARQ feedback for the user equipment in the descending control signaling, therefore, when UE is received
The descending control signaling that base station is sent, directly can be parsed described using the proprietary RNTI from the descending control signaling
For the HARQ feedback of itself.
Optionally, the user equipment obtains the position bag in the descending control signaling for the HARQ feedback of itself
Include：The user equipment is according to used minimum thing when mark or the user equipment uplink of the user equipment
Resource block index is managed to calculate for position of the HARQ feedback of itself in the descending control signaling.When base station uses what is shared
When the descending control signaling of RNTI scramblings indicates HARQ feedback, UE is it needs to be determined that the HARQ feedback of itself is in the descending control signaling
In position, now, using user equipment mark or the user equipment uplink when used minimal physical provide
Source block index, which is calculated, is directed to position of the HARQ feedback of itself in the descending control signaling.
Specifically, calculated according to the mark of the user equipment for the HARQ feedback of itself in the descending control signaling
In position can be：UE_ID mod 4；Used minimal physical resource block rope during according to the user equipment uplink
Drawing calculating can be for position of the HARQ feedback of itself in the descending control signaling：PRB index mod 4.
Now, the specific DMRS of UE included in the upstream data that base station is sent according to received UE, it may be determined that be
The upstream data which UE is sent, then can send HARQ in corresponding position in DCI according to the result of reception to the UE
Feed back (ACK or NACK).
Optionally, the user equipment is obtained includes for position of the HARQ feedback of itself in PHICH：The user
Equipment receives the RRC signaling that base station is sent, and the RRC signaling includes the position for the PHICH resource reserved for the user equipment
Put, wherein, the position of the PHICH resource includes identifying in PHICH groups mark and group on PHICH；
The user equipment is directed to position of the HARQ feedback of itself in PHICH according to described, is solved from the PHICH
Separate out includes for the HARQ feedback of itself：The user equipment is according to the position of the reserved PHICH resource, from described
The HARQ feedback for itself is parsed in PHICH.Base station indicates that the position of UE HARQ feedbacks in PHICH can be to UE
Before step S11 user equipmenies send upstream data in unlicensed spectrum to base station, or it is parallel with step S11, it is only necessary to
Ensure that UE notifies UE before HARQ feedback is received.
Specifically, base station is reserved in PHICH in advance when selecting some UE to carry out uplink using unlicensed frequencies
Some resource is used for the HARQ feedback of the UE, such as positioned at the 4th PHICH group, and 2 PHICH resource is designated in group and is used for
Feedbacks of the UE in unlicensed frequencies transmitting data.Base station indicates to be located at the 4th PHICH group, group internal standard by signaling to UE
Know the PHICH resource for 2, so that UE is after upstream data is transmitted, HARQ feedback is received in specified location.Base station is reserved
After the PHICH resource of (4,2), (the minimum PRB of the uplink of distribution) when other UE carry out uplink is being dispatched, is being needed
The PHICH resource for avoiding other UE from being calculated according to current mechanism is (4,2).
Wherein, base station can be in the PHICH on the serving cell or the serving cell of unlicensed spectrum for authorizing frequency spectrum
HARQ feedback resources of the upper reserved UE in unlicensed frequencies uplink.
It should be noted that if UE receives the mandate transmitted in unlicensed spectrum in subframe n, UE perform LBT it
Afterwards, if UE can carry out uplink in subframe n+4, the UE is obtained in the mark and group of PHICH groups according to following algorithm
Identify, and the mark according to the PHICH groups obtains oneself corresponding ACK/NACK with mark in group in PHICH；Or UE is such as
Fruit (such as subframe n+4, n+5, n+6) can carry out uplink within a period of time that subframe n+4 starts, then the UE is according to as follows
Algorithm obtains oneself corresponding ACK/NACK in specified PHICH.Herein a period of time can be preset by agreement or by
Base station is set by signaling.
If UE can not carry out in subframe n+4 or within a period of time that subframe n+4 starts uplink, i.e. UE is performed
LBT result does not allow carry out uplink a period of times of UE in subframe 4 or afterwards, and UE could carry out up biography after this
When defeated, UE needs the feedback of the method acquisition uplink provided according to above-described embodiment.
Specifically, multiple PHICH channels that PHICH transmission is come in the form of PHICH groups in tissue, 1 PHICH group are accounted for
With identical time-frequency domain physical resource, using the multiplex mode of orthogonal spreading sequence.Such as in normal CP, (Cyclic Prefix, are followed
Ring prefix) when, a PHICH group is multiplexed 8 PHICH channels, you can to indicate the ACK/NACK of its uplink to 8 UE
(it is assumed that a UE only transmits a transmission block).One PHICH channel is identified in the mark and group of PHICH groupsTogether decide on.(UE is first by oneself transmitting the position of the Physical Resource Block shared by upstream data by UE
The index of the minimal physical resource block of individual slot transmission upstream data) and DMRS (Demodulation Reference
Signal, demodulated reference signal) index the mark for determining PHICH groups and identified in group.The formula of face two specific as follows：
Wherein, IlowestIt is UE in minimum PRB indexes, n used in first time slot uplinkDMRSUsed by UE
DMRS cyclic shift (Cyclic Shift), formula (1) last represent PHICH groups number, formula (2) last
Item represents the size of spreading factor during PHICH modulation.
The embodiment of the present invention also provides a kind of user equipment, as shown in Fig. 2 the user equipment includes：
First transmitting element 21, for sending upstream data to base station in unlicensed spectrum；
Acquiring unit 22, position of the HARQ feedback of itself in descending control signaling or PHICH is directed to for obtaining；The
One receiving unit 23, for receiving descending control signaling or PHICH that base station is sent after the upstream data is received, institute
Stating descending control signaling or PHICH includes the HARQ feedback at least one user equipment；
Resolution unit 24, for being directed to the HARQ feedback of itself according in the descending control signaling or PHICH
Position, the HARQ feedback for itself is parsed from the descending control signaling or PHICH.
User equipment provided in an embodiment of the present invention, sends upstream data, and obtain pin in unlicensed spectrum to base station
To position of the HARQ feedback of itself in descending control signaling or PHICH, and receive base station and receiving the upstream data
What is sent afterwards includes the descending control signaling or PHICH of the HARQ feedback at least one user equipment, according to the pin
To position of the HARQ feedback of itself in the descending control signaling or PHICH, from the descending control signaling or PHICH
Parse for the HARQ feedback of itself.Compared with prior art, the present invention can be exactly to user equipment in unauthorized frequency
Transmission in spectrum is fed back, while avoiding obtaining other users equipment HARQ feedback generation interference.
Optionally, the descending control signaling includes the HARQ feedback for multiple user equipmenies；
The acquiring unit 22, for receive base station transmission RRC signaling, the RRC signaling include share RNTI with
And for position of the HARQ feedback in the descending control signaling of the user equipment；
First receiving unit 23, for receiving described in the process that base station is sent after the upstream data is received
The descending control signaling of shared RNTI scramblings；
The resolution unit 24, for being directed to position of the HARQ feedback of itself in the descending control signaling according to described
Put, parse the HARQ feedback for itself from the descending control signaling using the shared RNTI.
Optionally, the descending control signaling includes the HARQ feedback for a user equipment；
The acquiring unit 22, for obtaining the HARQ for a user equipment that the descending control signaling includes
It is fed back to be directed to the HARQ feedback of itself；
First receiving unit 23, it is proprietary for receiving the process that base station sends after the upstream data is received
The descending control signaling of RNTI scramblings；
The resolution unit 24, for being parsed using the proprietary RNTI to the descending control signaling, obtains pin
To the HARQ feedback of itself.
Optionally, the acquiring unit 22, it is up for the mark according to the user equipment or the user equipment
Used minimal physical resource block index is calculated for the HARQ feedback of itself in the descending control signaling during transmission
Position.
Optionally, the acquiring unit 22, the RRC signaling for receiving base station transmission, the RRC signaling is included for institute
The position of the reserved PHICH resource of user equipment is stated, wherein, the position of the PHICH resource includes the PHICH groups on PHICH
Identified in mark and group；
The resolution unit 24, for the position according to the reserved PHICH resource, is parsed from the PHICH
For the HARQ feedback of itself.
The embodiment of the present invention also provides a kind of base station, as shown in figure 3, the base station includes：
Second receiving unit 31, for receiving the upstream data that user equipment is sent in unlicensed spectrum；
Second transmitting element 32, for receiving the rear to user equipment of the upstream data in second receiving unit
Descending control signaling or PHICH are sent, the descending control signaling or PHICH are included at least one user equipment
HARQ feedback.
Base station provided in an embodiment of the present invention, receive upstream data that user equipment sends in unlicensed spectrum it
Afterwards, being sent to user equipment includes the descending control signaling or PHICH of the HARQ feedback at least one user equipment, so that
User equipment is according to for position of the HARQ feedback of itself in the descending control signaling or PHICH, from the descending control
The HARQ feedback for itself is parsed in signaling processed or PHICH.Compared with prior art, the present invention can be exactly to user
Transmission of the equipment in unlicensed spectrum is fed back, while avoiding obtaining other users equipment HARQ feedback generation interference.
Optionally, the descending control signaling includes the HARQ feedback for multiple user equipmenies.
As shown in figure 4, the base station also includes：
3rd transmitting element 33, for user equipment send RRC signaling, the RRC signaling include share RNTI with
And for position of the HARQ feedback in the descending control signaling of the user equipment；
Second transmitting element 32, for second receiving unit 31 receive the upstream data it is rear to
Family equipment sends the descending control signaling by the shared RNTI scramblings.
Optionally, the descending control signaling includes the HARQ feedback for a user equipment；
Second transmitting element 32, for second receiving unit 31 receive the upstream data it is rear to
Family equipment sends the descending control signaling scrambled by proprietary RNTI.
Optionally, as shown in figure 5, the base station also includes：
4th transmitting element 34, for sending RRC signaling to user equipment, the RRC signaling includes being the user
The position of the reserved PHICH resource of equipment, wherein, the position of the PHICH resource include PHICH groups mark on PHICH with
Identified in group.
The embodiment of the present invention also provides a kind of reponse system of uplink, as shown in fig. 6, the system is set including user
Standby 61 and base station 62；
The user equipment 61, for sending upstream data to base station 62 in unlicensed spectrum, obtains and is directed to itself
Position of the HARQ feedback in descending control signaling or PHICH, receives base station 62 and is sent after the upstream data is received
Descending control signaling or PHICH, the descending control signaling or PHICH include the HARQ at least one user equipment
Feedback, according to position of the HARQ feedback for itself in the descending control signaling or PHICH, from the descending control
The HARQ feedback for itself is parsed in signaling processed or PHICH；
The base station 62, for receiving the upstream data that user equipment 61 is sent in unlicensed spectrum, receiving
Rear sent to user equipment 61 in descending control signaling or PHICH, the descending control signaling or PHICH for stating upstream data is wrapped
Include the HARQ feedback at least one user equipment.
The reponse system of uplink provided in an embodiment of the present invention, user equipment is sent in unlicensed spectrum to base station
Upstream data, and obtain for position of the HARQ feedback of itself in descending control signaling or PHICH, base station receives described
After upstream data, to user equipment send include at least one user equipment HARQ feedback descending control signaling or
PHICH, user equipment is directed to position of the HARQ feedback of itself in the descending control signaling or PHICH according to described, from
The HARQ feedback for itself is parsed in the descending control signaling or PHICH.Compared with prior art, the present invention can be accurate
Really transmission of the user equipment in unlicensed spectrum is fed back, while avoiding obtaining HARQ feedback to other users equipment
Produce interference.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (15)
1. a kind of feedback method of uplink, it is characterised in that including：
User equipment sends upstream data in unlicensed spectrum to base station；
The user equipment is obtained to be referred to for the hybrid automatic repeat-request feedback of itself in descending control signaling or physics HARQ
Show the position in channel；
The user equipment receives the descending control signaling or physics HARQ that base station is sent after the upstream data is received
Indicate channel, the descending control signaling or Physical HARQ Indicator Channel include at least one user equipment mixing oneself
Dynamic repeat requests feedback；
The user equipment is fed back in the descending control signaling or thing according to the hybrid automatic repeat-request for itself
Manage HARQ indicate channel in position, parsed from the descending control signaling or Physical HARQ Indicator Channel for itself
Hybrid automatic repeat-request feeds back.
2. according to the method described in claim 1, it is characterised in that the descending control signaling includes setting for multiple users
Standby hybrid automatic repeat-request feedback；
The user equipment is obtained feeds back the position in the descending control signaling for the hybrid automatic repeat-request of itself
Including：The user equipment receives the radio resource control signaling that base station is sent, and the radio resource control signaling is included altogether
Enjoy Radio Network Temporary Identifier and the hybrid automatic repeat-request feedback for the user equipment is believed in the descending control
Position in order；
The descending control signaling that the user equipment reception base station is sent after the upstream data is received includes：It is described to use
Family equipment receives the process shared Radio Network Temporary Identifier scrambling that base station is sent after the upstream data is received
Descending control signaling；
The user equipment is fed back in the descending control signaling according to the hybrid automatic repeat-request for itself
Position, parsed from the descending control signaling includes for the hybrid automatic repeat-request feedback of itself：The user sets
It is standby that the position in the descending control signaling is fed back according to the hybrid automatic repeat-request for itself, using described common
Enjoy Radio Network Temporary Identifier and parsed from the descending control signaling and fed back for the hybrid automatic repeat-request of itself.
3. according to the method described in claim 1, it is characterised in that the descending control signaling includes setting for a user
Standby hybrid automatic repeat-request feedback；
The user equipment is obtained to be included for position of the hybrid automatic repeat-request feedback of itself in descending control signaling：
The hybrid automatic repeat-request for a user equipment that the user equipment acquisition descending control signaling includes is anti-
Present to feed back for the hybrid automatic repeat-request of itself；
The descending control signaling that the user equipment reception base station is sent after the upstream data is received includes：It is described to use
Family equipment receives base station under the proprietary Radio Network Temporary Identifier scrambling of process sent after receiving the upstream data
Row control signaling；
The user equipment is fed back in the descending control signaling according to the hybrid automatic repeat-request for itself
Position, parsed from the descending control signaling includes for the hybrid automatic repeat-request feedback of itself：The user sets
It is standby that the descending control signaling is parsed using the proprietary Radio Network Temporary Identifier, obtain for the mixing of itself certainly
Dynamic repeat requests feedback.
4. according to the method described in claim 1, it is characterised in that the user equipment is obtained and weighed automatically for the mixing of itself
Passing position of the request feedback in the descending control signaling includes：The user equipment according to the mark of the user equipment or
Used minimal physical resource block index calculates and is directed to the mixed automatic retransfer of itself during user equipment uplink described in person
Position of the request feedback in the descending control signaling.
5. according to the method described in claim 1, it is characterised in that the user equipment is obtained and weighed automatically for the mixing of itself
Passing position of the request feedback in Physical HARQ Indicator Channel includes：The user equipment receives the Radio Resource control that base station is sent
Signaling processed, the radio resource control signaling includes the position for the Physical HARQ Indicator Channel resource reserved for the user equipment
Put, wherein, the physics HARQ that the position of the Physical HARQ Indicator Channel resource is included on Physical HARQ Indicator Channel indicates letter
Identified in road group mark and group；
The user equipment is fed back in the physics according to the hybrid automatic repeat-request for itself
HARQ indicates the position in channel, and the mixed automatic retransfer for itself is parsed from the Physical HARQ Indicator Channel
Request feedback includes：The user equipment is according to the position of the reserved Physical HARQ Indicator Channel resource, from the physics
HARQ indicates to parse the hybrid automatic repeat-request feedback for itself in channel.
6. a kind of user equipment, it is characterised in that including：
First transmitting element, for sending upstream data to base station in unlicensed spectrum；
Acquiring unit, the hybrid automatic repeat-request feedback for obtaining for itself refers in descending control signaling or physics HARQ
Show the position in channel；First receiving unit, for receiving the descending control that base station is sent after the upstream data is received
Signaling processed or Physical HARQ Indicator Channel, the descending control signaling or Physical HARQ Indicator Channel include being directed at least one
The hybrid automatic repeat-request feedback of user equipment；
Resolution unit, for being fed back according to the hybrid automatic repeat-request for itself in the descending control signaling or thing
Manage HARQ indicate channel in position, parsed from the descending control signaling or Physical HARQ Indicator Channel for itself
Hybrid automatic repeat-request feeds back.
7. user equipment according to claim 6, it is characterised in that the descending control signaling includes using for multiple
The hybrid automatic repeat-request feedback of family equipment；
Wrapped in the acquiring unit, the radio resource control signaling for receiving base station transmission, the radio resource control signaling
Include shared Radio Network Temporary Identifier and the hybrid automatic repeat-request for the user equipment is fed back in the descending control
Position in signaling processed；
First receiving unit, for receiving the process shared nothing that base station is sent after the upstream data is received
The descending control signaling of line Network Temporary Identifier scrambling；
The resolution unit, for being fed back according to the hybrid automatic repeat-request for itself in the descending control signaling
In position, the mixing for itself is parsed from the descending control signaling using the shared Radio Network Temporary Identifier
HARQ feeds back.
8. user equipment according to claim 6, it is characterised in that the descending control signaling is included for a use
The hybrid automatic repeat-request feedback of family equipment；
The acquiring unit, the mixing for a user equipment included for obtaining the descending control signaling is weighed automatically
Request is passed to be fed back to feed back for the hybrid automatic repeat-request of itself；
First receiving unit, for receiving the proprietary wireless network of process that base station is sent after the upstream data is received
The descending control signaling of network temporary mark scrambling；
The resolution unit, for being parsed using the proprietary Radio Network Temporary Identifier to the descending control signaling,
Obtain feeding back for the hybrid automatic repeat-request of itself.
9. user equipment according to claim 6, it is characterised in that the acquiring unit, for being set according to the user
Used minimal physical resource block index is calculated for the mixed of itself when standby mark or the user equipment uplink
Close HARQ and feed back the position in the descending control signaling.
10. user equipment according to claim 6, it is characterised in that the acquiring unit, for receiving base station transmission
Radio resource control signaling, the physics HARQ that the radio resource control signaling includes reserving for the user equipment indicates letter
The position of road resource, wherein, the position of the Physical HARQ Indicator Channel resource includes the physics on Physical HARQ Indicator Channel
HARQ indicates to identify in channel group mark and group；
The resolution unit, for the position according to the reserved Physical HARQ Indicator Channel resource, from the physics HARQ
Indicate to parse the hybrid automatic repeat-request feedback for itself in channel.
11. a kind of base station, it is characterised in that including：
Second receiving unit, for receiving the upstream data that user equipment is sent in unlicensed spectrum；
Second transmitting element, for second receiving unit receive the upstream data it is rear sent to user equipment under
Row control signaling or Physical HARQ Indicator Channel, the descending control signaling or physics
HARQ indicates that channel includes feeding back for the hybrid automatic repeat-request of at least one user equipment.
12. base station according to claim 11, it is characterised in that the descending control signaling includes being directed to multiple users
The hybrid automatic repeat-request feedback of equipment；
The base station also includes：
3rd transmitting element, is wrapped for being sent to user equipment in radio resource control signaling, the radio resource control signaling
Include shared Radio Network Temporary Identifier and the hybrid automatic repeat-request for the user equipment is fed back in the descending control
Position in signaling processed；
Second transmitting element, sends out for receiving the rear of the upstream data in second receiving unit to user equipment
The descending control signaling of the excessively described shared Radio Network Temporary Identifier scrambling of the warp let-off.
13. base station according to claim 11, it is characterised in that the descending control signaling is included for a user
The hybrid automatic repeat-request feedback of equipment；
Second transmitting element, sends out for receiving the rear of the upstream data in second receiving unit to user equipment
The descending control signaling of the excessively proprietary Radio Network Temporary Identifier scrambling of the warp let-off.
14. base station according to claim 11, it is characterised in that the base station also includes：
4th transmitting element, is wrapped for being sent to user equipment in radio resource control signaling, the radio resource control signaling
The position for the Physical HARQ Indicator Channel resource reserved for the user equipment is included, wherein, the Physical HARQ Indicator Channel money
The position in source includes identifying in Physical HARQ Indicator Channel group mark and group on Physical HARQ Indicator Channel.
15. a kind of reponse system of uplink, it is characterised in that including user equipment and base station；
The user equipment, for sending upstream data to base station in unlicensed spectrum, the mixing that acquisition is directed to itself is automatic
Repeat requests feed back position in descending control signaling or Physical HARQ Indicator Channel, receive base station receive it is described up
The descending control signaling or Physical HARQ Indicator Channel sent after data, descending control signaling or the physics HARQ indicates letter
Road includes feeding back for the hybrid automatic repeat-request of at least one user equipment, automatic according to the mixing for itself
Repeat requests feed back position in the descending control signaling or Physical HARQ Indicator Channel, from the descending control signaling or
The hybrid automatic repeat-request feedback for itself is parsed in Physical HARQ Indicator Channel；
The base station, for receiving the upstream data that user equipment is sent in unlicensed spectrum, is receiving line number on described
It after descending control signaling or Physical HARQ Indicator Channel, descending control signaling or the physics HARQ are sent to user equipment
Indicate that channel includes feeding back for the hybrid automatic repeat-request of at least one user equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911343821.4A CN111050408B (en) | 2016-04-01 | 2016-04-01 | Feedback method and system for uplink transmission, base station and user equipment |
| CN201610205657.0A CN107295664A (en) | 2016-04-01 | 2016-04-01 | The feedback method and system of uplink, base station and user equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610205657.0A CN107295664A (en) | 2016-04-01 | 2016-04-01 | The feedback method and system of uplink, base station and user equipment |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911343821.4A Division CN111050408B (en) | 2016-04-01 | 2016-04-01 | Feedback method and system for uplink transmission, base station and user equipment |
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| CN107295664A true CN107295664A (en) | 2017-10-24 |
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| CN201610205657.0A Pending CN107295664A (en) | 2016-04-01 | 2016-04-01 | The feedback method and system of uplink, base station and user equipment |
| CN201911343821.4A Active CN111050408B (en) | 2016-04-01 | 2016-04-01 | Feedback method and system for uplink transmission, base station and user equipment |
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| Application Number | Title | Priority Date | Filing Date |
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| CN109451800A (en) * | 2017-12-29 | 2019-03-08 | 北京小米移动软件有限公司 | Hybrid automatic repeat-request feedback method and device and data receiver |
| CN109475009A (en) * | 2017-09-08 | 2019-03-15 | 华为技术有限公司 | Exempt from the method and apparatus of authorized transmissions |
| CN109565381A (en) * | 2018-10-31 | 2019-04-02 | 北京小米移动软件有限公司 | Information feedback method and device |
| CN110199495A (en) * | 2019-04-16 | 2019-09-03 | 北京小米移动软件有限公司 | Feedback method, repeating method, device, terminal and the storage medium of uplink |
| CN111211880A (en) * | 2018-11-21 | 2020-05-29 | 中国信息通信研究院 | Uplink non-orthogonal multiple access transmission feedback method, device and system |
| CN111937476A (en) * | 2018-03-28 | 2020-11-13 | 诺基亚技术有限公司 | Feedback indication for persistent transmission for wireless networks |
| CN112136284A (en) * | 2018-03-27 | 2020-12-25 | 高通股份有限公司 | Acknowledgement feedback in unlicensed new radios |
| CN112703809A (en) * | 2018-10-31 | 2021-04-23 | 富士通株式会社 | Method and device for sending and configuring side link data |
| US11765758B2 (en) | 2019-05-09 | 2023-09-19 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Resource configuration method and apparatus, computer device and storage medium |
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| CN111211880B (en) * | 2018-11-21 | 2022-04-22 | 中国信息通信研究院 | Uplink non-orthogonal multiple access transmission feedback method, device and system |
| CN111211880A (en) * | 2018-11-21 | 2020-05-29 | 中国信息通信研究院 | Uplink non-orthogonal multiple access transmission feedback method, device and system |
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| CN110199495A (en) * | 2019-04-16 | 2019-09-03 | 北京小米移动软件有限公司 | Feedback method, repeating method, device, terminal and the storage medium of uplink |
| US11765758B2 (en) | 2019-05-09 | 2023-09-19 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Resource configuration method and apparatus, computer device and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111050408A (en) | 2020-04-21 |
| CN111050408B (en) | 2022-07-29 |
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Application publication date: 20171024 |