CN110198208A - A kind of the ascending pilot frequency design method and transmitting terminal, receiving end of narrow-band communication system - Google Patents
A kind of the ascending pilot frequency design method and transmitting terminal, receiving end of narrow-band communication system Download PDFInfo
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- CN110198208A CN110198208A CN201810162239.7A CN201810162239A CN110198208A CN 110198208 A CN110198208 A CN 110198208A CN 201810162239 A CN201810162239 A CN 201810162239A CN 110198208 A CN110198208 A CN 110198208A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0024—Carrier regulation at the receiver end
- H04L2027/0026—Correction of carrier offset
Abstract
The embodiment of the present invention provides the ascending pilot frequency design method and transmitting terminal, receiving end of a kind of narrow-band communication system.The method includes the information of at least one time/frequency source block is obtained from receiving end；Corresponding reference signal sequence is obtained according to the information of each time/frequency source block；Wherein, the reference signal sequence includes the reference signal of preset quantity；In the reference signal sequence, since second reference signal, corresponding reference signal is reset to 0 at interval of a sequential element, to obtain new reference signal sequence；The new reference signal sequence is sent to the receiving end in the time/frequency source block, so that the receiving end obtains frequency deviation according to the new reference signal sequence, transmitting terminal provided in an embodiment of the present invention obtains new reference signal sequence by being updated to the reference signal sequence being calculated and the time/frequency source block by distributing is sent to receiving end, so that receiving end is passed through new reference signal sequence must calculate frequency deviation to more accurate.
Description
Technical field
The present embodiments relate to wireless communication technology fields more particularly to a kind of ascending pilot frequency of narrow-band communication system to set
Meter method and transmitting terminal, receiving end.
Background technique
Former 230 narrow-band communication systems are single sub-band system, and each sub-frame of uplink only has 1 column reference signal, 3 sub-frame of uplink
Binding scheduling, can there is 3 column reference signals, and each user has three column reference signals can use in a radio frames 25ms,
While obtaining 3 column channel estimation results, receiving end can use the accumulation of RELATED APPLICATIONS sequence while channel estimation
Phase difference carrys out estimating frequency offset.After introducing multi-subband technology, it is desirable that sub-frame of uplink can support single sub-frame independently to dispatch, and need
The multi-subframe integrated scheduling of original list band transmission is supported simultaneously.
It is changed to after supporting multi-subband scene, user may only be dispatched in a sub-frame of uplink, available with reference to letter
Number only 1 column, at this time using single-row reference signal estimation frequency difference be unable to get accurate frequency deviation.
Summary of the invention
The embodiment of the present invention provides the ascending pilot frequency design method and transmitting terminal, receiving end of a kind of narrow-band communication system, uses
To solve to be unable to get accurate frequency difference using single-row reference signal estimation frequency difference in the prior art.
In a first aspect, the embodiment of the invention provides a kind of ascending pilot frequency design methods of narrow-band communication system, comprising:
The information of at least one time/frequency source block is obtained from receiving end；
Corresponding reference signal sequence is obtained according to the information of each time/frequency source block；Wherein, the reference signal sequence
Reference signal including preset quantity；
It, will be corresponding at interval of a sequential element since second reference signal in the reference signal sequence
Reference signal resets to 0, to obtain new reference signal sequence；
The new reference signal sequence is sent to the receiving end in the time/frequency source block, so that the receiving end
Frequency deviation is obtained according to the new reference signal sequence.
Second aspect, the embodiment of the invention provides a kind of ascending pilot frequency design method of narrow-band communication system, features
It is, comprising:
The information of at least one running time-frequency resource is sent to transmitting terminal；So that the transmitting terminal is according to each time/frequency source block
Information obtain corresponding reference signal sequence, the reference signal sequence includes the reference signal of preset quantity, then in institute
It states in reference signal sequence, since second reference signal, resets corresponding reference signal at interval of a sequential element
It is 0, to obtain new reference signal sequence；
The new reference signal sequence sent in the time/frequency source block by transmitting terminal is received, and obtains corresponding frequency deviation.
The third aspect, this hair are that embodiment provides a kind of hair of ascending pilot frequency design method for narrow-band communication system
Sending end, comprising:
Receiving module, for obtaining the information of at least one time/frequency source block from receiving end；
Computing module, for obtaining corresponding reference signal sequence according to the information of each time/frequency source block；Wherein, described
Reference signal sequence includes the reference signal of preset quantity；
Module is reset, is used in the reference signal sequence, since second reference signal, at interval of a sequence
Corresponding reference signal is reset to 0 by element, to obtain new reference signal sequence；
First sending module, for the new reference signal sequence to be sent to the reception in the time/frequency source block
End, so that the receiving end obtains frequency deviation according to the new reference signal sequence.
Fourth aspect, this hair are that embodiment provides a kind of connecing for ascending pilot frequency design method for narrow-band communication system
Receiving end characterized by comprising
Second sending module, for sending the information of at least one running time-frequency resource to transmitting terminal；So that the transmitting terminal root
Corresponding reference signal sequence is obtained according to the information of each time/frequency source block, the reference signal sequence includes the ginseng of preset quantity
Signal is examined, then in the reference signal sequence, since second reference signal, will be corresponded at interval of a sequential element
Reference signal reset to 0, to obtain new reference signal sequence；
Parsing module for receiving the new reference signal sequence sent in the time/frequency source block by transmitting terminal, and obtains
To corresponding frequency deviation.
5th aspect, the embodiment of the invention also provides a kind of electronic equipment, comprising:
Processor, memory, communication interface and bus；Wherein,
The processor, memory, communication interface complete mutual communication by the bus；
The communication interface is for the information transmission between the communication equipment of the electronic equipment；
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to refer to
Order is able to carry out following method:
The information of at least one time/frequency source block is obtained from receiving end；
Corresponding reference signal sequence is obtained according to the information of each time/frequency source block；Wherein, the reference signal sequence
Reference signal including preset quantity；
It, will be corresponding at interval of a sequential element since second reference signal in the reference signal sequence
Reference signal resets to 0, to obtain new reference signal sequence；
The new reference signal sequence is sent to the receiving end in the time/frequency source block, so that the receiving end
Frequency deviation is obtained according to the new reference signal sequence.
6th aspect, the embodiment of the invention also provides a kind of storage mediums, are stored thereon with computer program, the calculating
Machine program realizes following method when being executed by processor:
The information of at least one time/frequency source block is obtained from receiving end；
Corresponding reference signal sequence is obtained according to the information of each time/frequency source block；Wherein, the reference signal sequence
Reference signal including preset quantity；
It, will be corresponding at interval of a sequential element since second reference signal in the reference signal sequence
Reference signal resets to 0, to obtain new reference signal sequence；
The new reference signal sequence is sent to the receiving end in the time/frequency source block, so that the receiving end
Frequency deviation is obtained according to the new reference signal sequence.
The ascending pilot frequency design method and transmitting terminal of narrow-band communication system provided in an embodiment of the present invention, receiving end are sent
It holds by being updated to the reference signal sequence being calculated to obtain new reference signal sequence and by the time-frequency of distribution money
Source block is sent to receiving end, so that receiving end is passed through new reference signal sequence must calculate frequency deviation to more accurate.
Detailed description of the invention
Fig. 1 is the ascending pilot frequency design method flow chart of the narrow-band communication system of the embodiment of the present invention；
Fig. 2 is the time/frequency source block structural schematic diagram of the embodiment of the present invention；
Fig. 3 is the ascending pilot frequency design method flow chart of another narrow-band communication system of the embodiment of the present invention；
Fig. 4 is that the structure of the transmitting terminal of the ascending pilot frequency design method for narrow-band communication system of the embodiment of the present invention is shown
It is intended to；
Fig. 5 is that the structure of the receiving end of the ascending pilot frequency design method for narrow-band communication system of the embodiment of the present invention is shown
It is intended to；
Fig. 6 is the electronic devices structure schematic diagram of the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is the ascending pilot frequency design method flow chart of the narrow-band communication system of the embodiment of the present invention, and Fig. 2 is that the present invention is real
The time/frequency source block structural schematic diagram of example is applied, as shown in Figure 1, which comprises
Step S01, the information of at least one time/frequency source block is obtained from receiving end.
In narrow-band communication system, when user terminal is needed as transmitting terminal to receiving end, i.e. base station sends upstream data
When, upstream data can be mapped in the time/frequency source block (Resource Block, RB) of distribution and be sent.The time-frequency
Resource block is the running time-frequency resource on frequency domain in a subband, in time domain in a subframe.With common 230 narrow band communication system
Unite agreement for, as shown in Fig. 2, each subband include 11 bandwidth be 2KHz subcarrier, each subframe include 9 just
Hand over frequency division multiplex OFDM symbol.Each time/frequency source block is combined by 11*9 resource element (Resource Element, RE), often
A resource element corresponds to a subcarrier and an OFDM symbol.
Since transmitting terminal can generate frequency deviation due to displacement etc. when sending signal to receiving end, in order to guarantee receiving end
Upstream data can be accurately parsed, needs to include the corresponding column of an OFDM symbol in each uplink time/frequency source block
RE, which is used to transmission of reference signals (Reference Signal, RS) sequence, enables the receiving end to pass through the reference signal sequence
Frequency deviation is calculated, reference signal quantity which includes on frequency domain and the number of subcarriers that each subband includes
It is identical, for example, 11.The time/frequency source block of every sub-distribution is all on the same subband in single sub-band system, and multi-subband system
The time/frequency source block distributed in system can appear on multiple and different subbands.
The quantity for the time/frequency source block specifically distributed for the transmitting terminal and the time domain and frequency domain of each time/frequency source block
Data volume and data type of the upstream data that range is needed to send according to the transmitting terminal in advance by receiving end etc. are come specific point
Match.Then the information for distributing at least one time/frequency source block of transmitting terminal can be sent to the transmitting terminal by receiving end, such as
The information of the time/frequency source block described in 230 narrow-band communication system agreements is included in Downlink Control Information (Downlink
Control Information, DCI) in transmitting terminal is sent to by receiving end, can also include in the Downlink Control Information
The information such as coding, modulation.
Step S02, corresponding reference signal sequence is obtained according to the information of each time/frequency source block；Wherein, the reference
Signal sequence includes the reference signal of preset quantity.
In order to enable more accurate obtain in receiving end to carry out data parsing, the hair according to current channel status
The reference signal sequence with receiving end agreement can be added in sending end in upstream data, so that receiving end passes through to reference signal sequence
Parsing to carry out channel estimation and offset estimation to uplink physical channel.
The reference signal sequence in order to obtain, transmitting terminal needs solve the information of the time/frequency source block received
Analysis, with the time domain and the information such as frequency domain and subsequent coding, modulation of each time/frequency source block distributed.And root
The information obtained according to parsing obtains reference signal sequence corresponding with each time/frequency source block according to preset calculation method,
The sequential element that wherein reference signal sequence includes is the reference signal of preset quantity, and the preset quantity is each subband
The number of subcarriers for being included, each reference signal are corresponding in turn to the reference signal that is used for transmission in the time/frequency source block
One RE.
Step S03, in the reference signal sequence, since second reference signal, at interval of a sequential element
Corresponding reference signal is reset to 0, to obtain new reference signal sequence.
It needs in order to make receiving end pass through one group of reference signal sequence receiving and accurately calculate frequency deviation to obtaining
Reference signal sequence in reference signal carry out part update.Arrangement by reference signal in the reference signal sequence is suitable
Corresponding reference signal is reset to 0 at interval of a sequential element since second reference signal by sequence, to obtain new
Reference signal sequence.Specifically, it can first be numbered in order from 0 to each reference signal in reference signal sequence, example
Such as { RS (0), RS (1) ... ..., RS (10) }, then the reference signal reservation for even number will be numbered, the reference for odd number will be numbered
Signal resets to 0, thus obtain new reference signal sequence be RS (0), 0, RS (2), 0, RS (4), 0, RS (6), 0, RS (8), 0,
RS(10)}。
Step S04, the new reference signal sequence is sent to the receiving end in the time/frequency source block, so that institute
It states receiving end and frequency deviation is calculated according to the new reference signal sequence.
Transmitting terminal is mapped to corresponding time-frequency by the new reference signal sequence, by modes such as subsequent coding, modulation
In resource block, it is then sent to the receiving end.At this time since the reference signal in the reference signal sequence is decreased by almost
The frequency domain components of half, thus can by the transmission power of the corresponding RE of each reference signal compared to originally doubling, from
And receiving end can be enable more accurate to the reference signal received differentiated and parsed, to improve reference signal
Reliability.
The receiving end after receiving the new reference signal sequence can by various frequency offset calculation methods come
To corresponding frequency deviation, the computer capacity of the frequency deviation is a subcarrier bandwidth, i.e. within 2KHz, to facilitate to upstream data
Accurate reception.
Transmitting terminal of the embodiment of the present invention is obtained newly by being updated to the reference signal sequence being calculated with reference to letter
Number sequence and time/frequency source block by distributing is sent to receiving end, enables receiving end by new reference signal sequence come to more
Adding accurate must calculate frequency deviation.
Based on the above embodiment, further, the step S04 specifically:
The new reference signal sequence is obtained into demodulated reference signal after inverse fast Fourier transform, then will be before circulation
It is sent to receiving end after sewing benefit to front end, so that the receiving end obtains frequency deviation according to the demodulated reference signal.
During the new reference signal sequence is mapped to corresponding time/frequency source block, specific needs first will be described
New reference signal sequence obtains the demodulated reference signal (Demodulation of time domain after inverse fast Fourier transform iFFT
Reference Signal, DMRS).The demodulated reference signal is that front and back is full symmetric in an OFDM symbol.Then again
The cyclic prefix being previously obtained is mended to the front end of the demodulated reference signal and is sent to receiving end.
Receiving end is by the available demodulated reference signal of parsing to transmitting terminal transmission signal, then again by demodulation
Frequency deviation is calculated in reference signal.The calculation method of specific frequency deviation has very much, such as can be by demodulated reference signal
The symmetrical two halves in front and back make correlation, the phase rotation accumulated within the corresponding time are then calculated, to obtain frequency deviation.
Transmitting terminal of the embodiment of the present invention is obtained newly by being updated to the reference signal sequence being calculated with reference to letter
Number sequence and time/frequency source block by distributing is sent to receiving end, enables receiving end by new reference signal sequence come to more
Adding accurate must calculate frequency deviation.
Fig. 3 is the ascending pilot frequency design method flow chart of another narrow-band communication system of the embodiment of the present invention, such as Fig. 3 institute
Show, which comprises
Step S10, the information of at least one running time-frequency resource is sent to transmitting terminal；So that the transmitting terminal according to it is each when
The information of frequency resource block obtains corresponding reference signal sequence, and the reference signal sequence includes the reference signal of preset quantity,
Then in the reference signal sequence, since second reference signal, at interval of a sequential element by corresponding reference
Signal resets to 0, to obtain new reference signal sequence.
In narrow-band communication system, when transmitting terminal needs to send upstream data to receiving end, receiving end can prior basis
The transmitting terminal needs data volume and data type of the upstream data sent etc. specifically to distribute to the transmitting terminal time-frequency money
Source, and the information for distributing at least one time/frequency source block of transmitting terminal is sent to the transmitting terminal.
Transmitting terminal parses the information of the time/frequency source block received, with each time/frequency source block for being distributed
The information such as time domain and frequency domain and subsequent coding, modulation.And the information obtained according to parsing is according to preset calculating side
Method obtains reference signal sequence corresponding with each time/frequency source block, wherein the sequent that the reference signal sequence includes
Element is the reference signal of preset quantity.
The one group of reference signal sequence received in order to pass through receiving end accurately calculates frequency deviation transmitting terminal needs
Part update is carried out to the reference signal in obtained reference signal sequence.By the row of reference signal in the reference signal sequence
Column sequence, since second reference signal, resets to 0 for corresponding reference signal at interval of a sequential element, thus
To new reference signal sequence.
Step S11, the new reference signal sequence sent in the time/frequency source block by transmitting terminal is received, and is corresponded to
Frequency deviation.
Transmitting terminal is mapped to corresponding time-frequency by the new reference signal sequence, by modes such as subsequent coding, modulation
In resource block, it is then sent to the receiving end.
The receiving end after receiving the new reference signal sequence can by various frequency offset calculation methods come
To corresponding frequency deviation, to facilitate the accurate reception to upstream data.
Transmitting terminal of the embodiment of the present invention is obtained newly by being updated to the reference signal sequence being calculated with reference to letter
Number sequence and time/frequency source block by distributing is sent to receiving end, enables receiving end by new reference signal sequence come to more
Adding accurate must calculate frequency deviation.
Based on the above embodiment, further, the step S11 specifically:
The corresponding new reference signal sequence that is sent in each time/frequency source block by transmitting terminal is received, and is respectively obtained pair
The frequency deviation answered is averaging to obtain averaged frequency offset the corresponding frequency deviation of each time/frequency source block.
If being configured with multi-subband, according to the data volume for the upstream data that transmitting terminal needs to transmit, the transmitting terminal may
The multiple time/frequency source blocks that can be assigned on different sub-band.Each time/frequency source block is respectively processed, that is, is calculated separately pair
The reference signal sequence answered, and obtain respective new reference signal sequence, then receiving end also can be to each of receiving new ginseng
Signal sequence is examined to be calculated to respectively obtain corresponding frequency deviation.
Since its frequency deviation is identical to same transmitting terminal on different sub-band, it is possible to by obtain all frequency deviations into
Row is average, and obtained averaged frequency offset is carried out the processes such as subsequent demodulation as the frequency deviation value of most terminal.
Transmitting terminal of the embodiment of the present invention is obtained newly by being updated to the reference signal sequence being calculated with reference to letter
Number sequence and time/frequency source block by distributing is sent to receiving end, enables receiving end by new reference signal sequence come to more
Adding accurate must calculate frequency deviation.
Fig. 4 is that the structure of the transmitting terminal of the ascending pilot frequency design method for narrow-band communication system of the embodiment of the present invention is shown
It is intended to, as shown in figure 4, the transmitting terminal includes: receiving module 10, computing module 11, resetting module 12 and the first sending module
13, in which:
The receiving module 10 is used to obtain the information of at least one time/frequency source block from receiving end；The computing module 11
For obtaining corresponding reference signal sequence according to the information of each time/frequency source block；Wherein, the reference signal sequence includes
The reference signal of preset quantity；The resetting module 12 is used in the reference signal sequence, is opened from second reference signal
Begin, corresponding reference signal is reset to 0 at interval of a sequential element, to obtain new reference signal sequence；First hair
Send module 13 for the new reference signal sequence to be sent to the receiving end in the time/frequency source block, so that described connect
Receiving end obtains frequency deviation according to the new reference signal sequence.Specifically:
In narrow-band communication system, when needing to send upstream data to receiving end, receiving end can be in advance according to the need
Data volume and data type of the upstream data to be sent etc. specifically distribute running time-frequency resource, and will distribute to transmitting terminal at least
The information of one time/frequency source block is sent to the receiving module 10.
Receiving module 10 parses the information of the time/frequency source block received, with each running time-frequency resource distributed
The information such as the time domain and frequency domain of block and subsequent coding, modulation, and send these signals to computing module 11.Institute
Computing module 11 is stated according to the information and preset calculation method that receive, obtains reference corresponding with each time/frequency source block
Signal sequence, wherein the reference signal sequence includes the reference signal of preset quantity.Then by computing module 11 by the ginseng
It examines signal sequence and is sent to resetting module 12.
The one group of reference signal sequence received in order to pass through receiving end, which accurately calculates, resets mould described in frequency deviation
Block 12 needs to carry out part update to the reference signal in obtained reference signal sequence.By being referred in the reference signal sequence
Signal puts in order, and since second reference signal, resets to corresponding reference signal at interval of a sequential element
0, to obtain new reference signal sequence, and it is sent to first sending module 13.
First sending module 13 maps the new reference signal sequence by modes such as subsequent coding, modulation
Into corresponding time/frequency source block, it is then sent to the receiving end.
The receiving end after receiving the new reference signal sequence can by various frequency offset calculation methods come
To corresponding frequency deviation, to facilitate the accurate reception to upstream data.
Device provided in an embodiment of the present invention for executing the above method, function with specific reference to above method embodiment,
Its specific method process repeats no more here.
Transmitting terminal of the embodiment of the present invention is obtained newly by being updated to the reference signal sequence being calculated with reference to letter
Number sequence and time/frequency source block by distributing is sent to receiving end, enables receiving end by new reference signal sequence come to more
Adding accurate must calculate frequency deviation.
Based on the above embodiment, further, first sending module is specifically used for, by the new reference signal sequence
Demodulated reference signal is obtained after inverse fast Fourier transform, then is sent to receiving end after cyclic prefix is mended to front end, with
The receiving end is set to obtain frequency deviation according to the demodulated reference signal.
During the new reference signal sequence is mapped to corresponding time/frequency source block, specific needs first will be described
New reference signal sequence obtains the demodulated reference signal (Demodulation of time domain after inverse fast Fourier transform iFFT
Reference Signal, DMRS).The demodulated reference signal is that front and back is full symmetric in an OFDM symbol.Then again
The cyclic prefix being previously obtained is mended to the front end of the demodulated reference signal and is sent to receiving end.
Receiving end is by the available demodulated reference signal of parsing to transmitting terminal transmission signal, then again by demodulation
Frequency deviation is calculated in reference signal.The calculation method of specific frequency deviation has very much, such as can be by demodulated reference signal
The symmetrical two halves in front and back make correlation, the phase rotation accumulated within the corresponding time are then calculated, to obtain frequency deviation.
Device provided in an embodiment of the present invention for executing the above method, function with specific reference to above method embodiment,
Its specific method process repeats no more here.
Transmitting terminal of the embodiment of the present invention is obtained newly by being updated to the reference signal sequence being calculated with reference to letter
Number sequence and time/frequency source block by distributing is sent to receiving end, enables receiving end by new reference signal sequence come to more
Adding accurate must calculate frequency deviation.
Fig. 5 is that the structure of the receiving end of the ascending pilot frequency design method for narrow-band communication system of the embodiment of the present invention is shown
It is intended to, as shown in figure 5, the receiving end includes the second sending module 20 and parsing module 21, wherein
Second sending module 20 is used to send the information of at least one running time-frequency resource to transmitting terminal；So that the hair
Sending end obtains corresponding reference signal sequence according to the information of each time/frequency source block, and the reference signal sequence includes present count
The reference signal of amount, then in the reference signal sequence, since second reference signal, at interval of a sequential element
Corresponding reference signal is reset to 0, to obtain new reference signal sequence；The parsing module 21 is existed for receiving by transmitting terminal
The new reference signal sequence sent in the time/frequency source block, and obtain corresponding frequency deviation.Specifically:
In narrow-band communication system, when transmitting terminal needs to send upstream data to receiving end, 20 meeting of the second sending module
Data volume and data type of the upstream data sent etc. is needed specifically to distribute to the transmission according to the transmitting terminal in advance
Time/frequency source block is held, and the information for distributing at least one time/frequency source block of transmitting terminal is sent to the transmitting terminal.
Transmitting terminal parses the information of the time/frequency source block received, with each time/frequency source block for being distributed
The information such as time domain and frequency domain and subsequent coding, modulation.And the information obtained according to parsing is according to preset calculating side
Method obtains reference signal sequence corresponding with each time/frequency source block, wherein the reference signal sequence includes preset quantity
Reference signal.
The one group of reference signal sequence received in order to pass through the parsing module 21 accurately calculates frequency deviation hair
Sending end needs to carry out part update to the reference signal in obtained reference signal sequence.By being referred in the reference signal sequence
Signal puts in order, and since second reference signal, resets to corresponding reference signal at interval of a sequential element
0, to obtain new reference signal sequence.
Transmitting terminal is mapped to corresponding time-frequency by the new reference signal sequence, by modes such as subsequent coding, modulation
In resource block, it is then sent to the parsing module 21.
The parsing module 21 can pass through various frequency offset calculation methods after receiving the new reference signal sequence
Corresponding frequency deviation is obtained, to facilitate the accurate reception to upstream data.
Device provided in an embodiment of the present invention for executing the above method, function with specific reference to above method embodiment,
Its specific method process repeats no more here.
Transmitting terminal of the embodiment of the present invention is obtained newly by being updated to the reference signal sequence being calculated with reference to letter
Number sequence and time/frequency source block by distributing is sent to receiving end, enables receiving end by new reference signal sequence come to more
Adding accurate must calculate frequency deviation.
Based on the above embodiment, further, the parsing module is specifically used for, and reception is provided by transmitting terminal in each time-frequency
The corresponding new reference signal sequence sent in source block, and corresponding frequency deviation is respectively obtained, it is corresponding to each time/frequency source block
Frequency deviation is averaging to obtain averaged frequency offset.
If being configured with multi-subband, according to the data volume for the upstream data that transmitting terminal needs to transmit, the transmitting terminal may
The multiple time/frequency source blocks that can be assigned on different sub-band.Each time/frequency source block is respectively processed, that is, is calculated separately pair
The reference signal sequence answered, and respective new reference signal sequence is obtained, then the parsing module also can be every to what is received
A new reference signal sequence is calculated to respectively obtain corresponding frequency deviation.
Since its frequency deviation is identical to same transmitting terminal on different sub-band, it is possible to by obtain all frequency deviations into
Row is average, and obtained averaged frequency offset is carried out the processes such as subsequent demodulation as the frequency deviation value of most terminal.
Device provided in an embodiment of the present invention for executing the above method, function with specific reference to above method embodiment,
Its specific method process repeats no more here.
Transmitting terminal of the embodiment of the present invention is obtained newly by being updated to the reference signal sequence being calculated with reference to letter
Number sequence and time/frequency source block by distributing is sent to receiving end, enables receiving end by new reference signal sequence come to more
Adding accurate must calculate frequency deviation.
Fig. 6 is the electronic devices structure schematic diagram of the embodiment of the present invention.As shown in fig. 6, the electronic equipment, comprising: place
Manage device (processor) 601, memory (memory) 602 and bus 603；
Wherein, the processor 601 and the memory 602 complete mutual communication by the bus 603；
The processor 601 is used to call the program instruction in the memory 602, to execute above-mentioned each method embodiment
Provided method, for example, the information of at least one time/frequency source block is obtained from receiving end；According to each time/frequency source block
Information obtain corresponding reference signal sequence；Wherein, the reference signal sequence includes the reference signal of preset quantity；Institute
It states in reference signal sequence, since second reference signal, resets corresponding reference signal at interval of a sequential element
It is 0, to obtain new reference signal sequence；The new reference signal sequence is sent to the reception in the time/frequency source block
End, so that the receiving end obtains frequency deviation according to the new reference signal sequence.
Further, the embodiment of the present invention discloses a kind of computer program product, and the computer program product includes depositing
The computer program in non-transient computer readable storage medium is stored up, the computer program includes program instruction, when described
When program instruction is computer-executed, computer is able to carry out method provided by above-mentioned each method embodiment, for example, from
Receiving end obtains the information of at least one time/frequency source block；Corresponding reference signal is obtained according to the information of each time/frequency source block
Sequence；Wherein, the reference signal sequence includes the reference signal of preset quantity；In the reference signal sequence, from second
A reference signal starts, and corresponding reference signal is reset to 0 at interval of a sequential element, to obtain new reference signal sequence
Column；The new reference signal sequence is sent to the receiving end in the time/frequency source block so that the receiving end according to
The new reference signal sequence obtains frequency deviation.
Further, the embodiment of the present invention provides a kind of non-transient computer readable storage medium, the non-transient calculating
Machine readable storage medium storing program for executing stores computer instruction, and the computer instruction makes the computer execute above-mentioned each method embodiment institute
The method of offer, for example, the information of at least one time/frequency source block is obtained from receiving end；According to each time/frequency source block
Information obtains corresponding reference signal sequence；Wherein, the reference signal sequence includes the reference signal of preset quantity；Described
In reference signal sequence, since second reference signal, corresponding reference signal is reset at interval of a sequential element
0, to obtain new reference signal sequence；The new reference signal sequence is sent to the reception in the time/frequency source block
End, so that the receiving end obtains frequency deviation according to the new reference signal sequence.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
The embodiments such as electronic equipment described above are only schematical, wherein it is described as illustrated by the separation member
Unit may or may not be physically separated, and component shown as a unit may or may not be object
Manage unit, it can it is in one place, or may be distributed over multiple network units.It can select according to the actual needs
Some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying wound
In the case where the labour for the property made, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of ascending pilot frequency design method of narrow-band communication system characterized by comprising
The information of at least one time/frequency source block is obtained from receiving end；
Corresponding reference signal sequence is obtained according to the information of each time/frequency source block；Wherein, the reference signal sequence includes
The reference signal of preset quantity；
In the reference signal sequence, since second reference signal, at interval of a sequential element by corresponding reference
Signal resets to 0, to obtain new reference signal sequence；
The new reference signal sequence is sent to the receiving end in the time/frequency source block so that the receiving end according to
The new reference signal sequence obtains frequency deviation.
2. the method according to claim 1, wherein described provide the new reference signal sequence in the time-frequency
The receiving end is sent in source block, so that the receiving end obtains frequency deviation according to the new reference signal sequence, specifically:
The new reference signal sequence is obtained into demodulated reference signal after inverse fast Fourier transform, then cyclic prefix is mended
It is sent to receiving end after to front end, so that the receiving end obtains frequency deviation according to the demodulated reference signal.
3. a kind of ascending pilot frequency design method of narrow-band communication system characterized by comprising
The information of at least one running time-frequency resource is sent to transmitting terminal；So that letter of the transmitting terminal according to each time/frequency source block
Breath obtains corresponding reference signal sequence, and the reference signal sequence includes the reference signal of preset quantity, then in the ginseng
It examines in signal sequence, since second reference signal, corresponding reference signal is reset to 0 at interval of a sequential element,
To obtain new reference signal sequence；
The new reference signal sequence sent in the time/frequency source block by transmitting terminal is received, and obtains corresponding frequency deviation.
4. according to the method described in claim 5, it is characterized in that, the reception is sent out in the time/frequency source block by transmitting terminal
The new reference signal sequence sent, and obtain corresponding frequency deviation；Specifically:
The corresponding new reference signal sequence sent in each time/frequency source block by transmitting terminal is received, and is respectively obtained corresponding
Frequency deviation is averaging to obtain averaged frequency offset the corresponding frequency deviation of each time/frequency source block.
5. a kind of transmitting terminal of the ascending pilot frequency design method for narrow-band communication system characterized by comprising
Receiving module, for obtaining the information of at least one time/frequency source block from receiving end；
Computing module, for obtaining corresponding reference signal sequence according to the information of each time/frequency source block；Wherein, the reference
Signal sequence includes the reference signal of preset quantity；
Module is reset, is used in the reference signal sequence, since second reference signal, at interval of a sequential element
Corresponding reference signal is reset to 0, to obtain new reference signal sequence；
First sending module, for the new reference signal sequence to be sent to the receiving end in the time/frequency source block,
So that the receiving end obtains frequency deviation according to the new reference signal sequence.
6. transmitting terminal according to claim 5, which is characterized in that first sending module is specifically used for, will be described new
Reference signal sequence obtains demodulated reference signal after inverse fast Fourier transform, then sends after cyclic prefix is mended to front end
To receiving end, so that the receiving end obtains frequency deviation according to the demodulated reference signal.
7. a kind of receiving end of the ascending pilot frequency design method for narrow-band communication system characterized by comprising
Second sending module, for sending the information of at least one running time-frequency resource to transmitting terminal；So that the transmitting terminal is according to every
The information of a time/frequency source block obtains corresponding reference signal sequence, and the reference signal sequence includes the reference letter of preset quantity
Number, then in the reference signal sequence, since second reference signal, at interval of a sequential element by corresponding ginseng
It examines signal and resets to 0, to obtain new reference signal sequence；
Parsing module for receiving the new reference signal sequence sent in the time/frequency source block by transmitting terminal, and obtains pair
The frequency deviation answered.
8. receiving end according to claim 7, which is characterized in that the parsing module is specifically used for, and receives by transmitting terminal
The corresponding new reference signal sequence sent in each time/frequency source block, and corresponding frequency deviation is respectively obtained, to each time-frequency
The corresponding frequency deviation of resource block is averaging to obtain averaged frequency offset.
9. a kind of electronic equipment, which is characterized in that including memory and processor, the processor and the memory pass through always
Line completes mutual communication；The memory is stored with the program instruction that can be executed by the processor, the processor tune
The method as described in Claims 1-4 is any is able to carry out with described program instruction.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
The method as described in Claims 1-4 is any is realized when processor executes.
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