CN109150442A - A kind of pilot frequency mapping method, terminal and the base station of uplink control channel PUCCH - Google Patents
A kind of pilot frequency mapping method, terminal and the base station of uplink control channel PUCCH Download PDFInfo
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- CN109150442A CN109150442A CN201710457496.9A CN201710457496A CN109150442A CN 109150442 A CN109150442 A CN 109150442A CN 201710457496 A CN201710457496 A CN 201710457496A CN 109150442 A CN109150442 A CN 109150442A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
Abstract
The embodiment of the present invention provides pilot frequency mapping method, terminal and the base station of a kind of uplink control channel PUCCH, to solve to exist in the prior art since pilot tone can occupy all frequency domain resources of its place transmission symbol, so as to cause the lower technical problem of channel estimating performance.Wherein, method includes carrying out pilot tone mapping to the first OFDM symbol in two orthogonal frequency division multiplex OFDM symbols in PUCCH, obtains first through mapping OFDM symbol；Pilot tone mapping is carried out to the second OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols, obtains second through mapping OFDM symbol；Wherein, pilot tone is different through mapping the second sub-carrier positions of OFDM symbol described second from the pilot tone in described first the first sub-carrier positions through mapping OFDM symbol.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of pilot frequency mapping method of uplink control channel PUCCH, terminal and
Base station.
Background technique
With the development and change of mobile communication business demand, International Telecommunication Union (International
Telecommunication Union, ITU) etc. multiple tissues all begin one's study to future mobile communication system new channel radio
Letter system (5Generation New RAT, 5G NR).The upload control letter of a variety of distinct symbols number length is proposed in 5G
Road structure, to meet the needs of different scenes, business.And for the demodulation ginseng for the uplink control channel for occupying two transmission symbols
Signal pattern design is examined, there is presently no specific solutions.
In existing long term evolution (Long Term Evolution, LTE) system, with uplink control channel (Physical
Uplink Control CHannel, PUCCH) for format 3.PUCCH can occupy 14 transmission symbols, pilot tone, control letter
Ceasing (Uplink Control Information, UCI) etc. can be with time division multiplexing (Testing Data
Management, TDM) mode transmitted on different transmission symbols respectively, as pilot tone may map to 14 transmission
On the 2nd, 6,9,13 transmission symbol in symbol, all frequency domain resources of transmission symbol where occupying it.
Therefore, when existing pilot tone etc. is transmitted with the mapping mode of TDM, pilot tone transmits symbol where needing to occupy it
On all frequency domain resources, and new wireless communication system can support DFT-S-OFDM, can also support CP-OFDM waveform
It is excessive to will lead to pilot tone accounting using the mapping mode of TDM for the PUCCH structure of two symbols for uplink, so that
Channel estimating performance is lower.
To sum up, all frequency domain resources that transmission symbol where occupying it due to pilot tone exists in the prior art, to lead
The technical problem for causing channel estimating performance lower.
Summary of the invention
The embodiment of the present invention provides pilot frequency mapping method, terminal and the base station of a kind of uplink control channel PUCCH, to solve
All frequency domain resources certainly existing in the prior art that its place transmission symbol can be occupied due to pilot tone, so as to cause channel estimation
The lower technical problem of performance.
First aspect
The embodiment of the present invention provides the pilot frequency mapping method of uplink control channel PUCCH a kind of, comprising:
Pilot tone mapping is carried out to the first OFDM symbol in two orthogonal frequency division multiplex OFDM symbols in PUCCH, is obtained
First through mapping OFDM symbol；
Pilot tone mapping is carried out to the second OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols, obtains the second warp
Map OFDM symbol；Wherein, pilot tone is in described first the first sub-carrier positions through mapping OFDM symbol and the pilot tone in institute
State the second the second sub-carrier positions difference for being mapped OFDM symbol.
Optionally, each OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols includes M subcarrier, described
M is positive integer.
Optionally, the first OFDM symbol in two orthogonal frequency division multiplex OFDM symbols in PUCCH is led
Frequency maps, and obtains first through mapping OFDM symbol, comprising:
Determine that i-th of sub-carrier positions in M subcarrier of first OFDM symbol are the first initial mapping position；
Based on first initial mapping position, pilot tone carries out first OFDM symbol with d, interval subcarrier
Mapping obtains first through mapping OFDM symbol；Wherein, described first institute is mapped in through n-th of pilot tone in mapping OFDM symbol
It states in (i+ (n-1) * d) a sub-carrier positions in M subcarrier, described i, d are positive integer, and the i is not more than institute
State d.
Optionally, the second OFDM symbol progress pilot tone in described two orthogonal frequency division multiplex OFDM symbols is reflected
It penetrates, obtains second through mapping OFDM symbol, comprising:
Determine that j-th of sub-carrier positions in M subcarrier of second OFDM symbol are the second initial mapping position；
Wherein, second initial mapping position is different from first initial mapping position, and the j is just whole not equal to the i
Number, and the j is not more than the d；
Based on second initial mapping position, by pilot tone with d, interval subcarrier to second OFDM symbol
It is mapped, obtains second through mapping OFDM symbol；Wherein, described second maps through n-th of pilot tone in mapping OFDM symbol
In (j+ (n-1) * d) a sub-carrier positions in the M subcarrier.
Optionally, described to be spaced d and the pilot tone resource ratio correlation shared in the OFDM symbol.
Second aspect
The embodiment of the present invention provides a kind of terminal, comprising:
First obtains module, for the first OFDM symbol in two orthogonal frequency division multiplex OFDM symbols in PUCCH
Pilot tone mapping is carried out, obtains first through mapping OFDM symbol；And
Pilot tone mapping is carried out to the second OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols, obtains the second warp
Map OFDM symbol；Wherein, pilot tone is in described first the first sub-carrier positions through mapping OFDM symbol and the pilot tone in institute
State the second the second sub-carrier positions difference for being mapped OFDM symbol.
Optionally, each OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols includes M subcarrier, described
M is positive integer.
Optionally, the first acquisition module is specifically used for:
Determine that i-th of sub-carrier positions in M subcarrier of first OFDM symbol are the first initial mapping position；
Based on first initial mapping position, pilot tone carries out first OFDM symbol with d, interval subcarrier
Mapping obtains first through mapping OFDM symbol；Wherein, described first institute is mapped in through n-th of pilot tone in mapping OFDM symbol
It states in (i+ (n-1) * d) a sub-carrier positions in M subcarrier, described i, d are positive integer, and the i is not more than institute
State d.
Optionally, the first acquisition module is specifically used for:
Determine that j-th of sub-carrier positions in M subcarrier of second OFDM symbol are the second initial mapping position；
Wherein, second initial mapping position is different from first initial mapping position, and the j is just whole not equal to the i
Number, and the j is not more than the d；
Based on second initial mapping position, by pilot tone with d, interval subcarrier to second OFDM symbol
It is mapped, obtains second through mapping OFDM symbol；Wherein, described second maps through n-th of pilot tone in mapping OFDM symbol
In (j+ (n-1) * d) a sub-carrier positions in the M subcarrier.
Optionally, described to be spaced d and the pilot tone resource ratio correlation shared in the OFDM symbol.
The third aspect
The embodiment of the present invention provides a kind of base station, comprising:
Second obtains module, for the first OFDM symbol in two orthogonal frequency division multiplex OFDM symbols in PUCCH
Pilot tone mapping is carried out, obtains first through mapping OFDM symbol；And
Pilot tone mapping is carried out to the second OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols, obtains the second warp
Map OFDM symbol；Wherein, pilot tone is in described first the first sub-carrier positions through mapping OFDM symbol and the pilot tone in institute
State the second the second sub-carrier positions difference for being mapped OFDM symbol.
Optionally, each OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols includes M subcarrier, described
M is positive integer.
Optionally, the second acquisition module is specifically used for:
Determine that i-th of sub-carrier positions in M subcarrier of first OFDM symbol are the first initial mapping position；
Based on first initial mapping position, pilot tone carries out first OFDM symbol with d, interval subcarrier
Mapping obtains first through mapping OFDM symbol；Wherein, described first institute is mapped in through n-th of pilot tone in mapping OFDM symbol
It states in (i+ (n-1) * d) a sub-carrier positions in M subcarrier, described i, d are positive integer, and the i is not more than institute
State d.
Optionally, the second acquisition module is specifically used for:
Determine that j-th of sub-carrier positions in M subcarrier of second OFDM symbol are the second initial mapping position；
Wherein, second initial mapping position is different from first initial mapping position, and the j is just whole not equal to the i
Number, and the j is not more than the d；
Based on second initial mapping position, by pilot tone with d, interval subcarrier to second OFDM symbol
It is mapped, obtains second through mapping OFDM symbol；Wherein, described second maps through n-th of pilot tone in mapping OFDM symbol
In (j+ (n-1) * d) a sub-carrier positions in the M subcarrier.
Optionally, described to be spaced d and the pilot tone resource ratio correlation shared in the OFDM symbol.
Fourth aspect
The embodiment of the present invention provides a kind of computer installation, and the computer installation includes processor, and the processor is used
The step of realizing method as described in relation to the first aspect when executing the computer program stored in memory.
5th aspect
The embodiment of the present invention provides a kind of computer readable storage medium, is stored with computer program, the computer journey
The step of method as described in relation to the first aspect is realized when sequence is executed by processor.
One or more technical solutions in above-mentioned technical proposal, at least have the following technical effects or advantages:
The first, the embodiment of the present invention provides the pilot frequency mapping method of uplink control channel PUCCH a kind of, and this method includes pair
The first OFDM symbol in two orthogonal frequency division multiplex OFDM symbols in PUCCH carries out pilot tone mapping, obtains first through mapping
OFDM symbol；Pilot tone mapping is carried out to the second OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols, obtains second
Through mapping OFDM symbol；Wherein, pilot tone exists in the described first the first sub-carrier positions and the pilot tone through mapping OFDM symbol
Described second is mapped the second sub-carrier positions difference of OFDM symbol.I.e. in the embodiment of the present invention, for two OFDM symbols
PUCCH, by carrying out staggered pilot mappings, i.e. mapped of the pilot tone in two OFDM symbols to two OFDM symbols
Sub-carrier positions are staggered, to improve channel estimating performance.
The second, due in the embodiment of the present invention, either in two orthogonal frequency division multiplex OFDM symbols in PUCCH
First OFDM symbol carries out pilot tone mapping, or maps the second OFDM symbol pilot tone, is to determine initial mapping position
Afterwards, pilot tone maps OFDM symbol with d, interval subcarrier, does not need all frequency domains money for occupying entire OFDM symbol
Source improves the utilization rate of frequency domain resource.
Third, due in the embodiment of the present invention, the interval d and pilot tone of pilot tone mapping in the OFDM symbol where it shared by
Resource ratio it is related, therefore, not can be used for controlling the transmission of information UCI by the subcarrier that pilot tone maps, to improve
Channel estimating performance.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described, it should be apparent that, attached drawing described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the flow diagram of the pilot frequency mapping method of uplink control channel PUCCH in the embodiment of the present invention；
Fig. 2 is the PUCCH pilot tone mapping that pilot tone DMRS resource accounting is 1/3 in the embodiment of the present invention；
Fig. 3 is the PUCCH pilot tone mapping that pilot tone DMRS resource accounting is 1/4 in the embodiment of the present invention；
Fig. 4 is the PUCCH pilot tone mapping that pilot tone DMRS resource accounting is 1/6 in the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of terminal in the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of base station in the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of computer installation in the embodiment of the present invention.
Specific embodiment
In order to keep the purposes, technical schemes and advantages of the embodiment of the present invention clearer, implement below in conjunction with the present invention
Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described.
Firstly, to the general thought of the pilot frequency mapping method of uplink control channel PUCCH provided in an embodiment of the present invention into
Row is introduced.
In the embodiment of the present invention, to the first OFDM symbol in two orthogonal frequency division multiplex OFDM symbols in PUCCH into
The mapping of row pilot tone obtains first through mapping OFDM symbol；To the 2nd OFDM in described two orthogonal frequency division multiplex OFDM symbols
Symbol carries out pilot tone mapping, obtains second through mapping OFDM symbol；Wherein, pilot tone described first through mapping OFDM symbol the
One sub-carrier positions are different through mapping the second sub-carrier positions of OFDM symbol described second from the pilot tone.I.e. the present invention is real
It applies in example, for the PUCCH of two OFDM symbols, by carrying out staggered pilot mapping to two OFDM symbols, i.e. pilot tone exists
Mapped sub-carrier positions in two OFDM symbols are staggered, to improve channel estimating performance.
Furthermore the pilot frequency mapping method of the uplink control channel PUCCH in the embodiment of the present invention can be applied to terminal, base
It the equipment such as stands.For example, terminal can send PUCCH to base station, and the PUCCH can be accounted for when terminal side is communicated with base station side
With two transmission symbols (such as OFDM symbol), and pilot tone may map on the two transmission symbols and be passed to base station side
It is defeated, and base station side can carry out pilot tone mapping to PUCCH in the same way after receiving PUCCH, to PUCCH and data
Channel carries out correlation demodulation.
It should be noted that the printed words such as " first, second, third " in the embodiment of the present invention are only for distinguishing, it is convenient for
Understand, is not used to the limitation to sequencing.
The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing.
Embodiment one
Referring to Figure 1, the embodiment of the present invention provides the pilot frequency mapping method of uplink control channel PUCCH a kind of, this method
Process can be described as follows:
S100: carrying out pilot tone mapping to the first OFDM symbol in two orthogonal frequency division multiplex OFDM symbols in PUCCH,
First is obtained through mapping OFDM symbol；
S200: pilot tone mapping is carried out to the second OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols, is obtained
Second through mapping OFDM symbol；Wherein, pilot tone is led through mapping the first sub-carrier positions of OFDM symbol with described described first
The second sub-carrier positions difference that frequency is mapped OFDM symbol described second.
In S100, OFDM symbol is the occupied transmission symbol of PUCCH, such as DFT-S-OFDM, CP-OFDM.
In the embodiment of the present invention, when sending PUCCH to base station such as terminal, terminal can first two occupied to PUCCH
One of OFDM symbol in OFDM symbol, i.e. the first OFDM symbol carry out pilot tone mapping, and wherein pilot tone, such as DMRS can
With the correlation demodulation for upload control and data channel.Pilot tone mapping, which can be construed to pilot tone, may map on transmission symbol
The process transmitted.
Optionally, each OFDM symbol in two orthogonal frequency division multiplex OFDM symbols includes M subcarrier, and M is positive
Integer.
That is, the first OFDM symbol may include M subcarrier, the second OFDM symbol in the embodiment of the present invention
May include M subcarrier, wherein M can be the positive integers such as 12,24, the specific value of M can according to the actual situation depending on,
It is not limited specifically in the embodiment of the present invention.
Optionally, pilot tone is carried out to the first OFDM symbol in two orthogonal frequency division multiplex OFDM symbols in PUCCH to reflect
It penetrates, obtains first through mapping OFDM symbol, may include:
Determine that i-th of sub-carrier positions in M subcarrier of the first OFDM symbol are the first initial mapping position,
In, the first initial mapping position can be the initial position that pilot tone is mapped on M subcarrier.
Based on the first initial mapping position, pilot tone maps the first OFDM symbol with d, interval subcarrier, obtains
First through mapping OFDM symbol；Wherein, first the in M subcarrier is mapped in through n-th of pilot tone in mapping OFDM symbol
In (i+ (n-1) * d) a sub-carrier positions, i, d are positive integer, and i is not more than d, wherein the d subcarrier at interval can wrap
Include the previous subcarrier mapped by pilot tone, or can not also include, can according to the actual situation depending on, the present invention is real
It applies in example so that d subcarrier includes the previous subcarrier mapped by pilot tone as an example.
For example, Fig. 2 is referred to, it is assumed that M 24, i.e. an OFDM symbol include 24 subcarriers；Taking i is 1, i.e., 24
The position of the 1st subcarrier in a subcarrier is the first initial mapping position, and pilot tone can be from the position of the 1st subcarrier
Start to map；Taking n is 8, i.e. needs to map 8 pilot tones in the first OFDM symbol；Taking d is 3, i.e. pilot tone is from the first initial mapping position
It is that 3 subcarriers are mapped that beginning, which is set, with spacing.
Therefore, the process for carrying out pilot tone mapping to the first OFDM symbol can be described as, firstly, pilot tone can be from first
The 1st sub-carrier positions in 24 subcarriers of OFDM symbol start to map, i.e., the 1st pilot tone is mapped in the 1st subcarrier
On position；Then, pilot tone continues to map with 3, interval subcarrier, wherein includes the 1st in 3 subcarriers at interval and is mapped
Subcarrier afterwards, i.e. the 2nd pilot tone are mapped in the 4th sub-carrier positions；Continue pilot tone mapping, i.e., the 3rd pilot tone is reflected
It penetrates in the 7th sub-carrier positions, the mapping process of the 4-8 pilot tone is with aforementioned, and which is not described herein again.Generally, for
First OFDM symbol, 8 pilot tones are that 3 subcarriers are successively mapped with spacing since the 1st sub-carrier positions, i.e., the
8 pilot tones of one OFDM symbol are sequentially mapped to Isosorbide-5-Nitrae, in 7,10,13,16,19,22 sub-carrier positions.
Due to being to determine when carrying out pilot tone mapping for the first OFDM symbol in PUCCH in the embodiment of the present invention
After initial mapping position, pilot tone maps the first OFDM symbol with d, interval subcarrier, does not need to occupy entire
All frequency domain resources of first OFDM symbol, to improve the utilization rate of frequency domain resource.
Optionally, pilot tone mapping is carried out to the second OFDM symbol in two orthogonal frequency division multiplex OFDM symbols, obtains the
Two through mapping OFDM symbol, may include:
Determine that j-th of sub-carrier positions in M subcarrier of the second OFDM symbol are the second initial mapping position；Its
In, j is the positive integer not equal to i, and j is not more than d；
Based on the second initial mapping position, pilot tone maps the second OFDM symbol with d, interval subcarrier, obtains
Second through mapping OFDM symbol；Wherein, second the in M subcarrier is mapped in through n-th of pilot tone in mapping OFDM symbol
In (j+ (n-1) * d) a sub-carrier positions.
In the embodiment of the present invention, due to needing to carry out staggered pilot mapping to the first OFDM symbol and the second OFDM symbol,
It therefore, can be with the first OFDM symbol at the initial mapping position, i.e. the second initial mapping position for determining the second OFDM symbol
Initial mapping position, i.e. the first initial mapping position as reference.For example, the 1st sub-carrier positions of the first OFDM symbol
For initial mapping position, then the second OFDM symbol can using the 2nd, 3,4 etc. sub-carrier positions as initial mapping position, i.e., second
The initial mapping position of OFDM symbol and the initial mapping position of the first OFDM symbol are different, i.e., pilot tone in the first OFDM symbol and
It is alternative mapping in second OFDM symbol, to improve channel estimating performance.
For example, continuing with referring to fig. 2, it is assumed that M 24, i.e. an OFDM symbol include 24 subcarriers；Taking j is 2,
That is the position of the 2nd subcarrier in 24 subcarriers is the second initial mapping position, and pilot tone can be from the 2nd subcarrier
Position starts to map；Taking n is 8, i.e. needs to map 8 pilot tones in the second OFDM symbol；Taking d is 3, i.e. pilot tone is initially reflected from second
It penetrates position and starts to be that 3 subcarriers are mapped with spacing.
Therefore, the process for carrying out pilot tone mapping to the second OFDM symbol can be described as, firstly, pilot tone can be from second
The 2nd sub-carrier positions in 24 subcarriers of OFDM symbol start to map, i.e., the 2nd pilot tone is mapped in the 2nd subcarrier
On position；Then, pilot tone continues to map with 3, interval subcarrier, wherein includes the 2nd in 3 subcarriers at interval and is mapped
Subcarrier afterwards, i.e. the 2nd pilot tone are mapped in the 5th sub-carrier positions；Continue pilot tone mapping, i.e., the 3rd pilot tone is reflected
It penetrates in the 8th sub-carrier positions, the mapping process of the 4-8 pilot tone is with aforementioned, and which is not described herein again.Generally, for
Second OFDM symbol, 8 pilot tones are that 3 subcarriers are successively mapped with spacing since the 2nd sub-carrier positions, i.e., the
8 pilot tones of two OFDM symbols are sequentially mapped in the 2nd, 5,8,11,14,17,20,23 sub-carrier positions.
Correspondingly, when carrying out pilot tone mapping for the second OFDM symbol in PUCCH, being due in the embodiment of the present invention
After initial mapping position has been determined, pilot tone maps the second OFDM symbol with d, interval subcarrier, does not need
All frequency domain resources of entire second OFDM symbol are occupied, to improve the utilization rate of frequency domain resource.
Optionally, interval d and the pilot tone shared resource ratio correlation on the ofdm symbols.
For example, pilot tone needs to occupy the 1/3 of OFDM symbol resource, then d can take 3, i.e. the spacing of pilot tone mapping can be 3
A subcarrier；Alternatively, pilot tone needs to occupy the 1/4 of OFDM symbol resource, then d can take 4, i.e. the spacing of pilot tone mapping can be
4 subcarriers；Alternatively, pilot tone needs to occupy the 1/6 of OFDM symbol resource, then d can take 6, i.e. the spacing of pilot tone mapping can be with
For 6 subcarriers etc., do not limited specifically in the specific value embodiment of the present invention of d.
Due in the embodiment of the present invention, the interval d and pilot tone of pilot tone mapping in the OFDM symbol where it shared by money
Source ratio is related, therefore, not can be used for data, such as the transmission of control information UCI by the subcarrier that pilot tone maps, to mention
High channel estimating performance.
For the realization of the pilot frequency mapping method of clearer description uplink control channel PUCCH provided in an embodiment of the present invention
Process is enumerated two examples again below and is described further to the method in the embodiment of the present invention.
Fig. 3 is referred to, enabling an OFDM symbol includes 24 subcarriers, and pilot tone DMRS resource accounts for the 1/4 of the OFDM symbol,
Need to map 6 pilot tones.For the first OFDM symbol, pilot tone DMRS is since the 1st sub-carrier positions, with spacing for 4
Subcarrier is mapped, i.e. the pilot tone of the first OFDM symbol is mapped in the 1st, 5,9,13,17,21 sub-carrier positions.
And for the second OFDM symbol, pilot tone DMRS since the 3rd sub-carrier positions, with spacing be 4 subcarriers into
Row mapping, the i.e. pilot tone of the second OFDM symbol are mapped in the 3rd, 7,11,15,19,23 sub-carrier positions.
Fig. 4 is referred to, enabling an OFDM symbol includes 24 subcarriers, and pilot tone DMRS resource accounts for the 1/6 of the OFDM symbol,
Need to map 6 pilot tones.For the first OFDM symbol, pilot tone DMRS is since the 1st sub-carrier positions, with spacing for 6
Subcarrier is mapped, i.e. the pilot tone of the first OFDM symbol is mapped in the 1st, 7,13,19 sub-carrier positions.And for second
OFDM symbol, pilot tone DMRS are that 3 subcarriers are mapped with spacing since the 4th sub-carrier positions, i.e. the 2nd OFDM symbol
Number pilot tone be mapped in the 4th, 10,16,22 sub-carrier positions.
Therefore, the embodiment as corresponding to Fig. 2, Fig. 3 and Fig. 4 is it is found that be directed to the PUCCH of two OFDM symbols, by right
Two OFDM symbols carry out staggered pilot mapping, i.e. the sub-carrier positions of mapping of the pilot tone in two OFDM symbols are to be staggered
, and do not need to occupy all frequency domain resources of entire OFDM symbol, improve channel estimating performance.
Embodiment two
Fig. 5 is referred to, the embodiment of the present invention also provides a kind of terminal, which includes the first acquisition module 10.
Wherein, first module 10 is obtained, for first in two orthogonal frequency division multiplex OFDM symbols in PUCCH
OFDM symbol carries out pilot tone mapping, obtains first through mapping OFDM symbol；And
Pilot tone mapping is carried out to the second OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols, obtains the second warp
Map OFDM symbol；Wherein, pilot tone is in described first the first sub-carrier positions through mapping OFDM symbol and the pilot tone in institute
State the second the second sub-carrier positions difference for being mapped OFDM symbol.
Optionally, each OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols includes M subcarrier, described
M is positive integer.
Optionally, the first acquisition module 10 is specifically used for:
Determine that i-th of sub-carrier positions in M subcarrier of first OFDM symbol are the first initial mapping position；
Based on first initial mapping position, pilot tone carries out first OFDM symbol with d, interval subcarrier
Mapping obtains first through mapping OFDM symbol；Wherein, described first institute is mapped in through n-th of pilot tone in mapping OFDM symbol
It states in (i+ (n-1) * d) a sub-carrier positions in M subcarrier, described i, d are positive integer, and the i is not more than institute
State d.
Optionally, the first acquisition module 10 is specifically used for:
Determine that j-th of sub-carrier positions in M subcarrier of second OFDM symbol are the second initial mapping position；
Wherein, second initial mapping position is different from first initial mapping position, and the j is just whole not equal to the i
Number, and the j is not more than the d；
Based on second initial mapping position, by pilot tone with d, interval subcarrier to second OFDM symbol
It is mapped, obtains second through mapping OFDM symbol；Wherein, described second maps through n-th of pilot tone in mapping OFDM symbol
In (j+ (n-1) * d) a sub-carrier positions in the M subcarrier.
Optionally, described to be spaced d and the pilot tone resource ratio correlation shared in the OFDM symbol.
Embodiment three
Fig. 6 is referred to, the embodiment of the present invention also provides a kind of base station, which includes the second acquisition module 20.
Wherein, second module 20 is obtained, for first in two orthogonal frequency division multiplex OFDM symbols in PUCCH
OFDM symbol carries out pilot tone mapping, obtains first through mapping OFDM symbol；And
Pilot tone mapping is carried out to the second OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols, obtains the second warp
Map OFDM symbol；Wherein, pilot tone is in described first the first sub-carrier positions through mapping OFDM symbol and the pilot tone in institute
State the second the second sub-carrier positions difference for being mapped OFDM symbol.
Optionally, each OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols includes M subcarrier, described
M is positive integer.
Optionally, the second acquisition module 20 is specifically used for:
Determine that i-th of sub-carrier positions in M subcarrier of first OFDM symbol are the first initial mapping position；
Based on first initial mapping position, pilot tone carries out first OFDM symbol with d, interval subcarrier
Mapping obtains first through mapping OFDM symbol；Wherein, described first institute is mapped in through n-th of pilot tone in mapping OFDM symbol
It states in (i+ (n-1) * d) a sub-carrier positions in M subcarrier, described i, d are positive integer, and the i is not more than institute
State d.
Optionally, the second acquisition module 20 is specifically used for:
Determine that j-th of sub-carrier positions in M subcarrier of second OFDM symbol are the second initial mapping position；
Wherein, second initial mapping position is different from first initial mapping position, and the j is just whole not equal to the i
Number, and the j is not more than the d；
Based on second initial mapping position, by pilot tone with d, interval subcarrier to second OFDM symbol
It is mapped, obtains second through mapping OFDM symbol；Wherein, described second maps through n-th of pilot tone in mapping OFDM symbol
In (j+ (n-1) * d) a sub-carrier positions in the M subcarrier.
Optionally, described to be spaced d and the pilot tone resource ratio correlation shared in the OFDM symbol.
Example IV
In the embodiment of the present invention, a kind of computer installation is also provided, as shown in fig. 7, the computer installation includes processor
401, processor 401 is for realizing uplink provided in an embodiment of the present invention when executing the computer program stored in memory 402
The step of pilot frequency mapping method of control channel PUCCH.
Optionally, processor 401 specifically can be central processing unit, application-specific integrated circuit (Application
Specific Integrated Circuit, ASIC), it can be one or more integrated circuits executed for controlling program,
It can be the hardware circuit of use site programmable gate array (Field Programmable Gate Array, FPGA) exploitation,
It can be baseband processor.
Optionally, processor 401 may include at least one processing core.
Optionally, electronic equipment further includes memory 402, and memory 402 may include read-only memory (Read Only
Memory, ROM), random access memory (Random Access Memory, RAM) and magnetic disk storage.Memory 402 is used
Required data when storage processor 401 is run.The quantity of memory 402 is one or more.
Embodiment five
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored thereon with computer program, computer
The step of the pilot frequency mapping method such as uplink control channel PUCCH provided in an embodiment of the present invention is realized when program is executed by processor
Suddenly.
In embodiments of the present invention, it should be understood that the pilot frequency mapping method of disclosed uplink control channel PUCCH,
Terminal and base station, may be implemented in other ways.For example, apparatus embodiments described above are merely indicative,
For example, the division of unit or unit, only a kind of logical function partition, there may be another division manner in actual implementation,
Such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored, or not hold
Row.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces,
The indirect coupling or communication connection of equipment or unit can be electrical or other forms.
Each functional unit in embodiments of the present invention can integrate in one processing unit or each unit can also
To be independent physical module.
It, can if integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product
To be stored in a computer readable storage medium.Based on this understanding, the technical solution of the embodiment of the present invention is complete
Portion or part can be embodied in the form of software products, which is stored in a storage medium, packet
It includes some instructions to use so that a computer equipment, such as can be personal computer, server or the network equipment etc.,
Or processor (Processor) executes all or part of the steps of each embodiment method of the present invention.And storage medium above-mentioned
Include: general serial bus USB (Universal Serial Bus flash drive, USB), mobile hard disk, read-only deposit
Reservoir (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or
The various media that can store program code such as CD.
More than, above embodiments are only to be described in detail technical solution of the present invention, but above embodiments
The method for illustrating to be merely used to help understand the embodiment of the present invention should not be construed as the limitation to the embodiment of the present invention.This technology
Any changes or substitutions that can be easily thought of by the technical staff in field, should all cover within the protection scope of the embodiment of the present invention.
Claims (17)
1. a kind of pilot frequency mapping method of uplink control channel PUCCH, which is characterized in that the described method includes:
Pilot tone mapping is carried out to the first OFDM symbol in two orthogonal frequency division multiplex OFDM symbols in PUCCH, obtains first
Through mapping OFDM symbol；
Pilot tone mapping is carried out to the second OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols, obtains second through mapping
OFDM symbol；Wherein, pilot tone is described first through mapping the first sub-carrier positions of OFDM symbol and the pilot tone described the
Two are mapped the second sub-carrier positions difference of OFDM symbol.
2. the method as described in claim 1, which is characterized in that each of described two orthogonal frequency division multiplex OFDM symbols
OFDM symbol includes M subcarrier, and the M is positive integer.
3. method according to claim 2, which is characterized in that two orthogonal frequency division multiplex OFDMs in PUCCH accord with
The first OFDM symbol in number carries out pilot tone mapping, obtains first through mapping OFDM symbol, comprising:
Determine that i-th of sub-carrier positions in M subcarrier of first OFDM symbol are the first initial mapping position；
Based on first initial mapping position, pilot tone maps first OFDM symbol with d, interval subcarrier,
First is obtained through mapping OFDM symbol；Wherein, described first the M are mapped in through n-th of pilot tone in mapping OFDM symbol
In (i+ (n-1) * d) a sub-carrier positions in subcarrier, described i, d are positive integer, and the i is not more than the d.
4. method as claimed in claim 3, which is characterized in that in described two orthogonal frequency division multiplex OFDM symbols
Two OFDM symbols carry out pilot tone mapping, obtain second through mapping OFDM symbol, comprising:
Determine that j-th of sub-carrier positions in M subcarrier of second OFDM symbol are the second initial mapping position；Its
In, second initial mapping position is different from first initial mapping position, and the j is the positive integer not equal to the i,
And the j is not more than the d；
Based on second initial mapping position, pilot tone carries out second OFDM symbol with d, interval subcarrier
Mapping obtains second through mapping OFDM symbol；Wherein, described second institute is mapped in through n-th of pilot tone in mapping OFDM symbol
It states in (j+ (n-1) * d) a sub-carrier positions in M subcarrier.
5. the method as described in claim any in claim 3-4, which is characterized in that the interval d is with the pilot tone described
Shared resource ratio is related in OFDM symbol.
6. a kind of terminal, which is characterized in that the terminal includes:
First obtains module, for carrying out to the first OFDM symbol in two orthogonal frequency division multiplex OFDM symbols in PUCCH
Pilot tone mapping obtains first through mapping OFDM symbol；And
Pilot tone mapping is carried out to the second OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols, obtains second through mapping
OFDM symbol；Wherein, pilot tone is described first through mapping the first sub-carrier positions of OFDM symbol and the pilot tone described the
Two are mapped the second sub-carrier positions difference of OFDM symbol.
7. terminal as claimed in claim 6, which is characterized in that each of described two orthogonal frequency division multiplex OFDM symbols
OFDM symbol includes M subcarrier, and the M is positive integer.
8. terminal as claimed in claim 7, which is characterized in that the first acquisition module is specifically used for:
Determine that i-th of sub-carrier positions in M subcarrier of first OFDM symbol are the first initial mapping position；
Based on first initial mapping position, pilot tone maps first OFDM symbol with d, interval subcarrier,
First is obtained through mapping OFDM symbol；Wherein, described first the M are mapped in through n-th of pilot tone in mapping OFDM symbol
In (i+ (n-1) * d) a sub-carrier positions in subcarrier, described i, d are positive integer, and the i is not more than the d.
9. terminal as claimed in claim 8, which is characterized in that the first acquisition module is specifically used for:
Determine that j-th of sub-carrier positions in M subcarrier of second OFDM symbol are the second initial mapping position；Its
In, second initial mapping position is different from first initial mapping position, and the j is the positive integer not equal to the i,
And the j is not more than the d；
Based on second initial mapping position, pilot tone carries out second OFDM symbol with d, interval subcarrier
Mapping obtains second through mapping OFDM symbol；Wherein, described second institute is mapped in through n-th of pilot tone in mapping OFDM symbol
It states in (j+ (n-1) * d) a sub-carrier positions in M subcarrier.
10. the terminal as described in claim any in claim 8-9, which is characterized in that the interval d is with the pilot tone described
Shared resource ratio is related in OFDM symbol.
11. a kind of base station, which is characterized in that the base station includes:
Second obtains module, for carrying out to the first OFDM symbol in two orthogonal frequency division multiplex OFDM symbols in PUCCH
Pilot tone mapping obtains first through mapping OFDM symbol；And
Pilot tone mapping is carried out to the second OFDM symbol in described two orthogonal frequency division multiplex OFDM symbols, obtains second through mapping
OFDM symbol；Wherein, pilot tone is described first through mapping the first sub-carrier positions of OFDM symbol and the pilot tone described the
Two are mapped the second sub-carrier positions difference of OFDM symbol.
12. base station as claimed in claim 11, which is characterized in that each of described two orthogonal frequency division multiplex OFDM symbols
OFDM symbol includes M subcarrier, and the M is positive integer.
13. base station as claimed in claim 12, which is characterized in that the second acquisition module is specifically used for:
Determine that i-th of sub-carrier positions in M subcarrier of first OFDM symbol are the first initial mapping position；
Based on first initial mapping position, pilot tone maps first OFDM symbol with d, interval subcarrier,
First is obtained through mapping OFDM symbol；Wherein, described first the M are mapped in through n-th of pilot tone in mapping OFDM symbol
In (i+ (n-1) * d) a sub-carrier positions in subcarrier, described i, d are positive integer, and the i is not more than the d.
14. base station as claimed in claim 13, which is characterized in that the second acquisition module is specifically used for:
Determine that j-th of sub-carrier positions in M subcarrier of second OFDM symbol are the second initial mapping position；Its
In, second initial mapping position is different from first initial mapping position, and the j is the positive integer not equal to the i,
And the j is not more than the d；
Based on second initial mapping position, pilot tone carries out second OFDM symbol with d, interval subcarrier
Mapping obtains second through mapping OFDM symbol；Wherein, described second institute is mapped in through n-th of pilot tone in mapping OFDM symbol
It states in (j+ (n-1) * d) a sub-carrier positions in M subcarrier.
15. the base station as described in claim any in claim 13-14, which is characterized in that the interval d and the pilot tone are in institute
It is related to state resource ratio shared in OFDM symbol.
16. a kind of computer installation, which is characterized in that the computer installation includes processor, and the processor is for executing
It is realized when the computer program stored in memory such as the step of any one of claim 1-5 the method.
17. a kind of computer readable storage medium, is stored with computer program, which is characterized in that the computer program is located
It manages and is realized when device executes such as the step of any one of claim 1-5 the method.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112019462A (en) * | 2020-08-12 | 2020-12-01 | 北京遥感设备研究所 | NR PUCCH optimized receiving method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1925471A (en) * | 2006-05-26 | 2007-03-07 | 上海大学 | MIMO-OFDM channel estimating method for united orthogonal guide frequency design |
| CN101815047A (en) * | 2009-02-25 | 2010-08-25 | 中兴通讯股份有限公司 | Method and device for mapping demodulation pilots and physical resource block |
| CN102111886A (en) * | 2010-07-02 | 2011-06-29 | 电信科学技术研究院 | Method and device for transmitting uplink control information |
| CN102420794A (en) * | 2011-11-29 | 2012-04-18 | 中国空间技术研究院 | 4M transmission method of OFDM structure of satellite CMMB system |
| CN102469059A (en) * | 2010-11-15 | 2012-05-23 | 中兴通讯股份有限公司 | Method and device for carrying demodulation reference signal |
-
2017
- 2017-06-16 CN CN201710457496.9A patent/CN109150442A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1925471A (en) * | 2006-05-26 | 2007-03-07 | 上海大学 | MIMO-OFDM channel estimating method for united orthogonal guide frequency design |
| CN101815047A (en) * | 2009-02-25 | 2010-08-25 | 中兴通讯股份有限公司 | Method and device for mapping demodulation pilots and physical resource block |
| CN102111886A (en) * | 2010-07-02 | 2011-06-29 | 电信科学技术研究院 | Method and device for transmitting uplink control information |
| CN102469059A (en) * | 2010-11-15 | 2012-05-23 | 中兴通讯股份有限公司 | Method and device for carrying demodulation reference signal |
| CN102420794A (en) * | 2011-11-29 | 2012-04-18 | 中国空间技术研究院 | 4M transmission method of OFDM structure of satellite CMMB system |
Non-Patent Citations (2)
| Title |
|---|
| CATT: ""Design for UL DMRS Position"", 《3GPP TSG RAN WG1 MEETING #89，R1-1707428》 * |
| SHARP: ""RS and UCI Multiplexing for NR PUCCH in Short Duration"", 《3GPP TSG RAN WG1 MEETING #88BIS，R1-1705473》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112019462A (en) * | 2020-08-12 | 2020-12-01 | 北京遥感设备研究所 | NR PUCCH optimized receiving method and system |
| CN112019462B (en) * | 2020-08-12 | 2023-05-23 | 北京遥感设备研究所 | NR PUCCH (non-return physical uplink control channel) optimal receiving method and system |
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