CN104811280B - A kind of method and apparatus fed back by physical mixed automatic re-transmission indicating channel - Google Patents
A kind of method and apparatus fed back by physical mixed automatic re-transmission indicating channel Download PDFInfo
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- CN104811280B CN104811280B CN201410041341.3A CN201410041341A CN104811280B CN 104811280 B CN104811280 B CN 104811280B CN 201410041341 A CN201410041341 A CN 201410041341A CN 104811280 B CN104811280 B CN 104811280B
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Abstract
The embodiment of the invention provides a kind of method and apparatus fed back by PHICH, for in the cell being made of a complete TDD carrier wave and one or more complete FDD up-link carriers, so that each downlink subframe can transmit PHICH, feeding back ACK/NAK information, this method comprises: base station determines current TDD uplink-downlink configuration；The first downlink subframe is determined according to the TDD uplink-downlink configuration in the base station, does not include the physical resource for being used for transmission PHICH in the Physical Downlink Control Channel region of first downlink subframe；The base station determines in the Physical Downlink Shared Channel PDSCH of first downlink subframe, is used for transmission the PRB of PHICH；The base station receives the first PUSCH being carried on FDD up-link carrier, by the PHICH on the PRB, feeds back the corresponding ACK/NAK information of the first PUSCH to terminal.
Description
Technical field
The present invention relates to fields of communication technology, more particularly to one kind to pass through physical mixed automatic re-transmission indicating channel PHICH
The method and apparatus fed back.
Background technique
In existing long term evolution (Long Term Evolved, LTE) frequency division duplex (Frequency Division
Duplex, FDD) or time division duplex (Time Division Duplex, TDD) cell in, devise physical mixed autonomous retransmission
It indicates channel (Physical H-ARQ Indicator CHannel, PHICH), for carrying physics uplink common control channel
Hybrid automatic repeat-request (the Hybrid-Automatic of (Physical Uplink Share CHannel, PUSCH)
Repeat reQuest, H-ARQ) correct response (ACKnowledge)/wrong responses (Negative AcKnowledge,
NAK) feedback information.The transmission of PHICH carrys out tissue in the form of PHICH group, and a PHICH group occupies 3 resource unit groups
(Resource Element Group, REG), indicates 8 PHICH.PHICH is mapped in Physical Downlink Control Channel
(Physical Downlink Control Channel, PDCCH), specific location are the preceding n orthogonal frequency division multiplexing in subframe
(Orthogonal Frequency Division Multiplex, OFDM) symbol, the value of n is 1 or 2 or 3, such as Fig. 1 institute
Show；In Fig. 1, a square indicates a resource unit (Resource Element, RE).
The time span of PHICH and frequency domain width by Physical Broadcast Channel (Physical Broadcast Channel,
PBCH it) indicates, frequency domain width is indicated by PBCH with PHICH resource number (being denoted as N).The uplink-downlink configuration of TDD system such as table 1
It is shown, sub-frame of uplink is denoted as U in table 1, downlink subframe is denoted as D, and S indicates special subframe；On various uplink-downlink configurations are corresponding
As shown in table 2, digital representation sub-frame of uplink is to PUSCH pairs for carrying the sub-frame of uplink in table for row HARQ timing (timing)
The time delay of the downlink subframe for the ACK/NAK information answered.On the basis of PBCH indicates N, the uplink-downlink configuration of TDD system is different
When, the PHICH resource number in each downlink subframe is different (may be 0, N or 2N).By taking uplink-downlink configuration 0 as an example, uplink
Subframe 3 and 4 is respectively 7 and 6 by the time delay that PHICH carries out ACK/NAK feedback, 3+7=10 and 4+6=10, then sub-frame of uplink 3
Corresponding ACK/NAK information is all fed back in the PHICH of the subframe 0 of next radio frames with 4, and feedback occupies 2 times of resource, i.e.,
PHICH resource number is 2N in the subframe 0 of next radio frames.And the ACK/NAK feedback delay of sub-frame of uplink 2 is 4+2=6,
It needs to feed back in the subframe 6 of current radio frames, it is only necessary to 1 times of resource, i.e., PHICH resource in the subframe 6 of current radio frames
Number is N.
Table 1
Table 2
As technology develops, novel cell can be by a complete TDD carrier wave and one or more complete uplinks
Carrier wave is constituted, wherein the TDD frequency range that TDD carrier operation is planned in existing frequency spectrum, and complete up-link carrier can be from existing frequency
The FDD frequency range of spectrum planning obtains.Specifically, this scheme is to configure the up-link carrier bandwidth of FDD cell less than under FDD cell
Remaining FDD up-link carrier bandwidth is constituted the complete up-link carrier of one or more of this scheme by row carrier bandwidths.It should
In scheme, the ACK/NAK feedback delay for setting each subframe in the PUSCH of FDD up-link carrier is same size, when the feedback
The setting prolonged is only related with the processing speed of base station, such as: PUSCH of the setting subframe 0 to subframe 9 in FDD up-link carrier
ACK/NAK feedback delay is 4 subframes.
Above scheme has following defects that
In existing TDD system, part downlink subframe does not need to carry out ACK/NAK feedback, and this kind of downlink subframe cannot be
PHICH configures physical resource, and in above scheme, this kind of downlink subframe may need to feed back PUSCH pairs on FDD up-link carrier
The ACK/NAK information answered.For example, with reference to Fig. 2, the corresponding subframe 6 of uplink-downlink configuration 3 does not need to carry out ACK/ in a tdd system
NAK feedback, subframe 6 cannot configure physical resource for PHICH, but FDD up-link carrier is needed in the PUSCH that subframe 2 uploads
ACK/NAK feedback is carried out in subframe 6.Therefore, in above scheme, part downlink subframe can not be to the PUSCH on FDD up-link carrier
Carry out ACK/NAK feedback.
Summary of the invention
The embodiment of the invention provides a kind of method and apparatus fed back by PHICH, to solve by one
In the cell that complete TDD carrier wave and one or more complete FDD up-link carriers are constituted, part downlink subframe can not be to FDD
The problem of PUSCH on up-link carrier carries out ACK/NAK feedback.
It is provided in an embodiment of the present invention to include: by the method that PHICH is fed back
Base station determines current TDD uplink-downlink configuration；
The base station the first downlink subframe, the object of first downlink subframe are determined according to the TDD uplink-downlink configuration
Managing in down control channel region does not include the physical resource for being used for transmission PHICH；
The base station determines in the Physical Downlink Shared Channel PDSCH of first downlink subframe, is used for transmission PHICH's
Physical Resource Block PRB；
The base station receives the first Physical Uplink Shared Channel PUSCH being carried on FDD up-link carrier, by described
PHICH on PRB feeds back the corresponding ACK/NAK information of the first PUSCH to terminal.
Base station equipment provided in an embodiment of the present invention, comprising:
Uplink-downlink configuration determination unit, for determining current TDD uplink-downlink configuration；
Downlink subframe determination unit, for according to the TDD uplink-downlink configuration, determining the first downlink subframe, described the
It does not include the physical resource for being used for transmission PHICH in the Physical Downlink Control Channel region of one downlink subframe；
Physical Resource Block PRB determination unit, for determining the Physical Downlink Shared Channel PDSCH of first downlink subframe
In, it is used for transmission the PRB of PHICH；
Feedback unit passes through for receiving the first Physical Uplink Shared Channel PUSCH being carried on FDD up-link carrier
PHICH on the PRB feeds back the corresponding ACK/NAK information of the first PUSCH to terminal.
In the embodiment of the present invention, base station determines current TDD uplink-downlink configuration, and the base station is according to the TDD or more
Row configuration, determines the first downlink subframe, does not include being used in the Physical Downlink Control Channel region of first downlink subframe
The physical resource of PHICH is transmitted, the base station determines in the Physical Downlink Shared Channel PDSCH of first downlink subframe, uses
In the Physical Resource Block PRB of transmission PHICH, it is shared that the base station receives the first physical uplink being carried on FDD up-link carrier
Channel PUSCH feeds back the corresponding ACK/NAK information of the first PUSCH to terminal by the PHICH on the PRB；Pass through
PHICH is transmitted using the Physical Resource Block in PDSCH, so that complete by a complete TDD carrier wave and one or more
In the cell that FDD up-link carrier is constituted, each downlink subframe can transmit PHICH, and feeding back ACK/NAK information ensure that net
The quality of network transmission, also, the PHICH mapping mechanism in existing PDCCH is had no need to change, e-learning quality is met to backward
The requirement of compatibility.
Detailed description of the invention
Fig. 1 is the schematic diagram of the physical resource mapping area of PHICH in the prior art；
Fig. 2~Fig. 4 is the flow diagram of the method provided in an embodiment of the present invention fed back by PHICH；
Fig. 5 is the schematic diagram of the physical resource mapping area of PHICH provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of base station equipment provided in an embodiment of the present invention.
Specific embodiment
The embodiment of the invention provides a kind of method and apparatus fed back by PHICH, for complete by one
TDD carrier wave and the cells that constitute of one or more complete FDD up-link carriers in so that each downlink subframe can be fed back
PHICH, guarantees the quality of network transmission, also, haves no need to change the PHICH mapping mechanism in existing PDCCH, meets network
Requirement of the evolution to backwards compatibility.
Referring to fig. 2, provided in an embodiment of the present invention a kind of to include: by the method that PHICH is fed back
S201: base station determines current TDD uplink-downlink configuration.
The base station is the base station in the cell being made of TDD carrier wave and FDD up-link carrier；The FDD up-link carrier packet
Include one or more complete FDD up-link carriers.Also, base station can inquire current TDD uplink-downlink configuration in local cache.
S202: the base station the first downlink subframe, the first downlink are determined according to the TDD uplink-downlink configuration
It does not include the physical resource for being used for transmission PHICH in the Physical Downlink Control Channel region of frame.
As shown in figure 3, step S202 is specifically included:
S301: the base station determines the corresponding TDD sub-frame of uplink of the TDD uplink-downlink configuration.
Table 1 is specifically referred to determine；For example, the index of current TDD uplink-downlink configuration is 3, then subframe 2,3,4 is uplink
Subframe.
S302: the base station determines the ACK/NAK feedback delay of the TDD sub-frame of uplink.
Table 2 is specifically referred to determine；Still by taking TDD uplink-downlink configuration 3 as an example, the ACK/NAK feedback delay of subframe 2,3,4
It is 6.
S303: the base station the second downlink is determined according to the TDD sub-frame of uplink and the ACK/NAK feedback delay
Frame；It include the physical resource for being used for transmission PHICH in the Physical Downlink Control Channel region of second downlink subframe.
In known TDD uplink-downlink configuration 3, subframe 2,3,4 is sub-frame of uplink, and the ACK/NAK feedback delay of subframe 2,3,4 is equal
It is 6, then needing the downlink subframe that ACK/NAK feedback is carried out to TDD sub-frame of uplink is the subframe 8,9, Xia Yiwu of current radio frames
The subframe 0 of line frame.
S304: the base station is using the downlink subframe other than second downlink subframe as first downlink subframe.
In TDD uplink-downlink configuration 3, subframe 0,5,6,7,8,9 is downlink subframe, and subframe 1 is special subframe, it is also possible to be transmitted
PHICH is equally used as downlink subframe, then the second downlink subframe includes subframe 0,8,9, the first downlink subframe include subframe 1,5,6,
7。
Due in TDD system the first downlink subframe do not need transmission PHICH fed back, reflected according to existing physical resource
Mechanism is penetrated, PHICH can not be mapped to the PDCCH of the first downlink subframe.
S203: the base station determines in the Physical Downlink Shared Channel PDSCH of first downlink subframe, is used for transmission
The Physical Resource Block of PHICH.
Since according to existing PHICH mapping mechanism, the PDCCH in the subframe of part is unable to map PHICH, therefore, for
PHICH is mapped to PDSCH by this kind of subframe, as long as base station and terminal both sides can appoint the physical resource of mapping, base station is just
ACK/NAK information can be sent to terminal by PHICH.
The coding and mapping scheme of PHICH in current standard are continued to use, primary mapping, which occupies, to be needed using 3 REG i.e. 12
RE, and a Physical Resource Block (Physical Resource Block, PRB) just occupies 12 subcarriers, each OFDM symbol
12 RE are divided between number, therefore, the PHICH mapping area in PDSCH can be allocated as unit of PRB.
The embodiment of the present invention is with the allocation unit of PRB to be in PDSCH be PHICH carries out resource allocation, compared to OFDM
Scheme of the symbol as allocation unit can be avoided using the terminal of original agreement and signaling the PHICH in PDSCH as use
User data is handled, and has preferably compatibility.
Specifically, step S203 includes: the base station by the PRB of predeterminated position in the PDSCH of first downlink subframe
As the physical resource for being used for transmission PHICH, the PRB of the predeterminated position is pre-configured in the base station and terminal；Or
Person, the base station voluntarily select PRB as the physical resource for being used for transmission PHICH from the PDSCH of first downlink subframe,
The PRB of selection is indicated to terminal by signaling；The PRB that PHICH is used for transmission in PDSCH has one or more.
When using base station by signaling instruction terminal by the way of when, need in R12 release protocol increase newly corresponding contents.Tool
Body, increase e (extended, extension in shared radio-resource-configuration (Radio Resource Config Common)
)-PHICH indicates information, content is as follows:
S204, the base station receive the first Physical Uplink Shared Channel PUSCH being carried on FDD up-link carrier, pass through
PHICH on the PRB feeds back the corresponding ACK/NAK information of the first PUSCH to terminal.
Specifically, base station described in step S204 receives the first PUSCH being carried on FDD up-link carrier, comprising:
The base station receives the first PUSCH being carried on FDD up-link carrier by given sub-frame；Wherein, described specified
The subframe number of subframe is carried on FDD up-link carrier according to the subframe number of first downlink subframe with preset
The corresponding ACK/NAK feedback delay of PUSCH determines.Specifically, the subframe number of the first downlink subframe feedback delay is subtracted to obtain
The absolute value of the number arrived, the subframe number of the as described given sub-frame.
For example, the ACK/NAK feedback delay of PUSCH that setting is carried on FDD up-link carrier is 4, then uplink-downlink configuration 3
In, subframe 6 needs to feed back the ACK/NAK information of the PUSCH being carried on FDD up-link carrier on subframe 2 (6-4=2), needs
The PRB of PHICH is configured in the PDSCH of subframe 6.
In addition, method provided in an embodiment of the present invention further include: the base station receives the be carried on FDD up-link carrier
Two PUSCH, and receive the PUSCH being carried on TDD carrier wave；The downlink physical that the base station passes through second downlink subframe
Physical resource in control channel region feeds back the corresponding ACK/NAK information of the 2nd PUSCH, Yi Jicheng to terminal simultaneously
The corresponding ACK/NAK information of the PUSCH being loaded on TDD carrier wave.
For example, the ACK/NAK feedback delay of subframe 2 is 6 in TDD uplink-downlink configuration 3, subframe 2 is carried out by subframe 8
ACK/NAK feedback, feedback is the corresponding ACK/NAK information of the PUSCH being carried on TDD carrier wave in subframe 2.Meanwhile son
The feedback delay for the PUSCH of frame 4 being carried on FDD up-link carrier is 4, it is also desirable to ACK/NAK feedback is carried out in subframe 8.
Due to the PHICH mapping mechanism according to existing TDD, the PDCCH of subframe 8 can map PHICH, therefore, the TDD carrier wave of subframe 2
On PUSCH and subframe 4 FDD up-link carrier on PUSCH, ACK/NAK information is carried out by the PDCCH of subframe 8, is not required to
To remain for the physical resource of PHICH mapping in advance in PDSCH.
In short, for originally there is the downlink subframe of PHICH resource, on PUSCH the and TDD carrier wave on FDD up-link carrier
PUSCH shares original PHICH resource, and for the downlink subframe of not PHICH, PHICH, which is configured to, in PDSCH region matches
Set PRB；So that each downlink subframe can transmit PHICH, also, do not need modification PHICH in the mapping scheme of PDCCH,
It will not influence the use of existing net equipment.
Referring to fig. 4, the method for terminal reception PHICH provided in an embodiment of the present invention includes:
S401: terminal determines current TDD uplink-downlink configuration.
S402: the terminal determines downlink subframe, the PDCCH of the downlink subframe according to the TDD uplink-downlink configuration
It does not include the physical resource for being used for transmission PHICH in region.
S403: the terminal determines the PRB that PHICH is used for transmission in the PDSCH of the downlink subframe.
S404: the terminal detects PHICH on the physical resource of the PDSCH and receives ACK/NAK information.
Wherein, terminal according to the message that main carrier SIB-1 is carried determines TDD uplink-downlink configuration in step S401.
In step S403, the terminal determines the PRB that PHICH is used for transmission in the PDSCH of the downlink subframe, comprising:
The terminal receives base station instruction, determines the PRB for being used for transmission PHICH in the PDSCH of the downlink subframe；Alternatively, described
Terminal is using the PRB of predeterminated position in the PDSCH of the downlink subframe as the PRB for being used for transmission PHICH.
It should be noted that due to also including descending time slot in special subframe, and descending time slot can be used in transmitting
PHICH, the downlink subframe mentioned in the embodiment of the present invention includes special subframe.
Specific embodiments of the present invention are given below.
Assuming that system bandwidth is 20MHz, available resources 18MHz, corresponding 1200 subcarriers, 100 PRB, to 100
PRB number 0 to 99.For that cannot map the downlink subframe of PHICH in PDCCH, base station and terminal are pre-configured with 0 in subframe
Number PRB is that additional PHICH mapping area or base station determine that No. 0 PRB in each subframe is additional PHICH map section
Domain is simultaneously indicated to terminal.When PDCCH occupies three OFDM symbols, there are 11 OFDM symbols to be used in the PDSCH of each subframe
PHICH transmission, as shown in dash area in Fig. 5.The corresponding 8 PHICH channels of each OFDM symbol, then one share 88 PHICH
Indicate channel.
Referring to Fig. 6, base station equipment provided in an embodiment of the present invention includes:
Uplink-downlink configuration determination unit 601, for determining current TDD uplink-downlink configuration；
Downlink subframe determination unit 602, it is described for determining the first downlink subframe according to the TDD uplink-downlink configuration
It does not include the physical resource for being used for transmission PHICH in the Physical Downlink Control Channel region of first downlink subframe；
Physical Resource Block determination unit 603, for determining the Physical Downlink Shared Channel PDSCH of first downlink subframe
In, it is used for transmission the PRB of PHICH；
Feedback unit 604 leads to for receiving the first Physical Uplink Shared Channel PUSCH being carried on FDD up-link carrier
The PHICH on the PRB is crossed, feeds back the corresponding ACK/NAK information of the first PUSCH to terminal.
The downlink subframe determination unit 602 is specifically used for:
Determine the corresponding TDD sub-frame of uplink of the TDD uplink-downlink configuration；
Determine the ACK/NAK feedback delay of the TDD sub-frame of uplink；
The second downlink subframe is determined according to the TDD sub-frame of uplink and the ACK/NAK feedback delay；Under described second
It include the physical resource for being used for transmission PHICH in the Physical Downlink Control Channel region of row subframe；
Using the downlink subframe other than second downlink subframe as first downlink subframe.
Optionally, the feedback unit 604 is also used to:
The 2nd PUSCH being carried on FDD up-link carrier is received, and receives the PUSCH being carried on TDD carrier wave；
By the physical resource in the downlink physical control channel region of second downlink subframe, fed back simultaneously to terminal
The corresponding ACK/NAK information of 2nd PUSCH, and the corresponding ACK/NAK information of PUSCH being carried on TDD carrier wave.
The Physical Resource Block determination unit 603 is specifically used for:
Using the PRB of predeterminated position in the PDSCH of first downlink subframe as the physical resource for being used for transmission PHICH,
The PRB of the predeterminated position is pre-configured in the base station and terminal；Alternatively,
It voluntarily selects PRB as the physical resource for being used for transmission PHICH from the PDSCH of first downlink subframe, leads to
It crosses signaling and the PRB of selection is indicated to terminal.
The feedback unit 604 is for specifically including when receiving the PUSCH being carried on FDD up-link carrier:
The first PUSCH being carried on FDD up-link carrier is received by given sub-frame；Wherein, the son of the given sub-frame
Frame number, it is corresponding with the preset PUSCH being carried on FDD up-link carrier according to the subframe number of first downlink subframe
ACK/NAK feedback delay determines.
In conclusion method and base station equipment that the embodiment of the invention provides a kind of to be fed back by PHICH, so that
In the cell being made of a complete TDD carrier wave and one or more complete FDD up-link carriers, each downlink subframe
PHICH can be transmitted, feeding back ACK/NAK information ensure that the quality of network transmission, also, due to being expanded in PDSCH
Certain region is mapped for PHICH, and the PHICH mapping mechanism in PDCCH simultaneously has not been changed, and will not cause shadow to existing net equipment
It rings, ensure that backwards compatibility.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of method fed back by physical mixed automatic re-transmission indicating channel PHICH characterized by comprising
Base station determines current TDD uplink-downlink configuration；
The first downlink subframe is determined according to the TDD uplink-downlink configuration in the base station, under the physics of first downlink subframe
It does not include the physical resource for being used for transmission PHICH in row control channel region；
The base station determines in the Physical Downlink Shared Channel PDSCH of first downlink subframe, is used for transmission the physics of PHICH
Resource block PRB；
The base station receives the first Physical Uplink Shared Channel PUSCH being carried on FDD up-link carrier, by the PRB
PHICH, feed back the corresponding ACK/NAK information of the first PUSCH to terminal.
2. the method as described in claim 1, which is characterized in that determine according to the TDD uplink-downlink configuration in the base station
One downlink subframe, comprising:
The base station determines the corresponding TDD sub-frame of uplink of the TDD uplink-downlink configuration；
The base station determines the ACK/NAK feedback delay of the TDD sub-frame of uplink；
The base station the second downlink subframe is determined according to the TDD sub-frame of uplink and the ACK/NAK feedback delay；Described
It include the physical resource for being used for transmission PHICH in the Physical Downlink Control Channel region of two downlink subframes；
The base station is using the downlink subframe other than second downlink subframe as first downlink subframe.
3. method according to claim 2, which is characterized in that further include:
The base station receives the 2nd PUSCH being carried on FDD up-link carrier, and receives and be carried on TDD carrier wave
PUSCH；
The physical resource in downlink physical control channel region that the base station passes through second downlink subframe, simultaneously to terminal
The corresponding ACK/NAK information of the 2nd PUSCH is fed back, and the corresponding ACK/ of PUSCH being carried on the TDD carrier wave
NAK information.
4. the method as described in claim 1, which is characterized in that the base station determines the physical down of first downlink subframe
In shared channel PDSCH, it is used for transmission the physical resource of PHICH, comprising:
The base station is provided the PRB of predeterminated position in the PDSCH of first downlink subframe as the physics for being used for transmission PHICH
Source, the PRB of the predeterminated position are pre-configured in the base station and terminal；Alternatively,
The base station voluntarily selects PRB to provide as the physics for being used for transmission PHICH from the PDSCH of first downlink subframe
The PRB of selection is indicated to terminal by signaling by source.
5. the method as described in claim 1, which is characterized in that the base station receives first be carried on FDD up-link carrier
Physical Uplink Shared Channel PUSCH, comprising:
The base station receives the first PUSCH being carried on FDD up-link carrier by given sub-frame；Wherein, the given sub-frame
Subframe number, according to the subframe number of first downlink subframe and preset PUSCH pairs be carried on FDD up-link carrier
The ACK/NAK feedback delay answered determines.
6. a kind of base station equipment characterized by comprising
Uplink-downlink configuration determination unit, for determining current TDD uplink-downlink configuration；
Downlink subframe determination unit, for according to the TDD uplink-downlink configuration, determining the first downlink subframe, under described first
It does not include the physical resource for being used for transmission PHICH in the Physical Downlink Control Channel region of row subframe；
Physical Resource Block PRB determination unit, in the Physical Downlink Shared Channel PDSCH for determining first downlink subframe,
It is used for transmission the PRB of PHICH；
Feedback unit, for receiving the first Physical Uplink Shared Channel PUSCH being carried on FDD up-link carrier, by described
PHICH on PRB feeds back the corresponding ACK/NAK information of the first PUSCH to terminal.
7. equipment as claimed in claim 6, which is characterized in that the downlink subframe determination unit is specifically used for:
Determine the corresponding TDD sub-frame of uplink of the TDD uplink-downlink configuration；
Determine the ACK/NAK feedback delay of the TDD sub-frame of uplink；
The second downlink subframe is determined according to the TDD sub-frame of uplink and the ACK/NAK feedback delay；Second downlink
It include the physical resource for being used for transmission PHICH in the Physical Downlink Control Channel region of frame；
Using the downlink subframe other than second downlink subframe as first downlink subframe.
8. equipment as claimed in claim 7, which is characterized in that the feedback unit is also used to:
The 2nd PUSCH being carried on FDD up-link carrier is received, and receives the PUSCH being carried on TDD carrier wave；
By the physical resource in the downlink physical control channel region of second downlink subframe, to described in terminal simultaneously feedback
The corresponding ACK/NAK information of 2nd PUSCH, and the corresponding ACK/NAK information of PUSCH being carried on the TDD carrier wave.
9. equipment as claimed in claim 6, which is characterized in that the Physical Resource Block determination unit is specifically used for:
It is described using the PRB of predeterminated position in the PDSCH of first downlink subframe as the physical resource for being used for transmission PHICH
The PRB of predeterminated position is pre-configured in the base station and terminal；Alternatively,
It voluntarily selects PRB as the physical resource for being used for transmission PHICH from the PDSCH of first downlink subframe, passes through letter
It enables and the PRB of selection is indicated to terminal.
10. equipment as claimed in claim 6, which is characterized in that the feedback unit is carried on FDD up-link carrier for receiving
On a PUSCH when, specifically include:
The first PUSCH being carried on FDD up-link carrier is received by given sub-frame；Wherein, the subframe of the given sub-frame is compiled
Number, according to the subframe number of first downlink subframe ACK/ corresponding with the preset PUSCH being carried on FDD up-link carrier
NAK feedback delay determines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN106850163B (en) * | 2015-12-03 | 2020-08-07 | 华为技术有限公司 | Transmission method of PHICH feedback information and related equipment |
| CN107769896B (en) * | 2016-08-18 | 2020-10-16 | 上海诺基亚贝尔股份有限公司 | Method, device and base station for providing receiving feedback to user equipment in wireless network |
| WO2018233694A1 (en) * | 2017-06-22 | 2018-12-27 | 华为技术有限公司 | Method and device for signal transmission and reception |
| CN109120381B (en) | 2017-06-22 | 2022-09-02 | 华为技术有限公司 | Signal transmitting and receiving method and device |
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