CN107104915A - Handle the device and method of Soft Inform ation - Google Patents
Handle the device and method of Soft Inform ation Download PDFInfo
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- CN107104915A CN107104915A CN201610096190.0A CN201610096190A CN107104915A CN 107104915 A CN107104915 A CN 107104915A CN 201610096190 A CN201610096190 A CN 201610096190A CN 107104915 A CN107104915 A CN 107104915A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2649—Demodulators
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03878—Line equalisers; line build-out devices
- H04L25/03885—Line equalisers; line build-out devices adaptive
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- Computer Networks & Wireless Communication (AREA)
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- Detection And Prevention Of Errors In Transmission (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
A kind of reception device, includes a detecting signal unit, for receiving the symbol of multiple compensation on multiple subcarriers, with the symbol according to the plurality of compensation, produces the multiple Soft Inform ations and the symbol of multiple demodulation of the symbol of the plurality of compensation；One reliability unit, is coupled to the detecting signal unit, for multiple reliability informations according to the plurality of subcarrier, produces multiple weights of the plurality of Soft Inform ation；And a decoding unit, the detecting signal unit and the reliability unit are coupled to, for according to the plurality of Soft Inform ation and the plurality of weight, the symbol of the plurality of demodulation being decoded, to produce the bit of multiple decodings.
Description
Technical field
The present invention is relevant to a kind of device and method for communication system, more particularly to a kind of device for handling Soft Inform ation
And method.
Background technology
Due to OFDM (orthogonal frequency-division multiplexing, OFDM) technology
(or being discrete multi-tone modulation (discrete multi-tone modulation, DMT) technology) there is high spectrum to use effect
Rate and strong decay resistivity, a variety of modern age high-speed communication systems are all transmitted and received using OFDM technology
Signal, to improve the chance that signal is correctly reduced.OFDM technology can match somebody with somebody on each subcarrier (subcarrier)
The bit (bits) of various quantity is put, to make full use of the capacity of channel.
In general, using the communication system of OFDM in running, can be by the subcarrier of part
(subcarriers) channel estimating is used in, receiving terminal is obtained by these subcarriers corresponding to all subcarriers
Channel response (such as channel frequency response (channel frequency response)), is gone back with the channel response using estimation
The symbol (such as data) of transmission on atom carrier wave.Specifically, transmission end can configure reference signal known to receiving terminal in
On partial subcarrier.When transmitting the OFDM signal that all subcarriers are formed in transmission end, reference signal and
Data-signal can be sent to receiving terminal together.In receiving after the OFDM signal, reference not only can be used in receiving terminal
Signal is estimated for transmitting the channel response (response of abbreviation reference channel) corresponding to the subcarrier of reference signal, also can basis
Channel response (the abbreviation data channel sound being used for transmitting corresponding to the subcarrier of data-signal is further estimated in reference channel response
Should).Therefore, in after estimation data channel response, the channel response of estimation can be used in equilibrium by receiving terminal
(equalization), the signal transacting running such as demodulation (demodulation), decoding, with restoring data signal.
However, the configuration of reference signal is generally imperfect, or specific subcarrier can be by larger interference, so that not
Data channel response with subcarrier can have the different degrees of accuracy, and the degree of accuracy of these data channels response even can have phase
When big difference, such as degree of accuracy is especially low, and then influences the efficiency of balanced, demodulation (demodulation) and decoding.How
Improve influence of the channel response to receiving efficiency thus as urgent problem to be solved.
The content of the invention
Therefore, the invention provides a kind of reception device and method, for handling Soft Inform ation, to solve the above problems.
The present invention discloses a kind of reception device, includes a detecting signal unit, many on multiple subcarriers for receiving
The symbol (symbol) of individual compensation, with the symbol according to the plurality of compensation, produces multiple Soft Inform ations of the symbol of the plurality of compensation
(soft information) and multiple demodulation symbol；One reliability unit, is coupled to the detecting signal unit, for root
According to multiple reliability informations of the plurality of subcarrier, multiple weights of the plurality of Soft Inform ation are produced；And a decoding unit, coupling
In the detecting signal unit and the reliability unit, for according to the plurality of Soft Inform ation and the plurality of weight, decoding the plurality of solution
The symbol of modulation, to produce the bit of multiple decodings.
Brief description of the drawings
Fig. 1 is the schematic diagram of the communication system of the embodiment of the present invention one.
Fig. 2 is the schematic diagram of the reception device of the embodiment of the present invention one.
Fig. 3 is the schematic diagram of the sub-carrier configuration of the embodiment of the present invention one.
Fig. 4 is the flow chart of the flow of the embodiment of the present invention one.
Description of reference numerals：
20 reception devices
200 channel estimation units
202 channel compensate banks
204 detecting signal units
206 reliability units
208 decoding units
Embodiment
Fig. 1 is the schematic diagram of the communication system 10 of the embodiment of the present invention one.Communication system 10 can be any use orthogonal frequency division
Multiplexing (orthogonal frequency-division multiplexing, OFDM) technology (or be discrete multi-tone modulation
(discrete multi-tone modulation, DMT) technology) communication system, briefly connect by a transmission end TX and one
Receiving end RX is constituted.In Fig. 1, transmission end TX and receiving terminal RX are the frameworks for illustrating communication system 10.For example, lead to
Letter system 10 can be Asymmetric Digital Subscriber Line (asymmetric digital subscriber line, ADSL) system
System, power communication (power line communication, PLC) system, the Ethernet (Ethernet of coaxial cable
Over coax, EOC) etc. wired communication system, or area wireless network (wireless local area network,
WLAN), DVB (Digital Video Broadcasting, DVB) system and advanced Long Term Evolution (Long
Term Evolution-advanced, LTE-A) wireless communication system such as system, wherein digital video broadcast system can include
Terrestrial Digital Video Broadcasting System (DVB-Terrestrial, DVB-T) and new edition Terrestrial Digital Video Broadcasting System (DVB-T2)
System.In addition, transmission end TX and receiving terminal RX may be disposed at mobile phone, notebook computer, tablet personal computer, e-book and portable
In the devices such as formula computer system, not limited to this.
Fig. 2 is refer to, it is the schematic diagram of the reception device 20 of the embodiment of the present invention one, in Fig. 1 receiving terminal RX, using
To compensate the channel of estimation.Reception device 20 includes a channel estimation unit 200, a channel compensate bank 202, signal inspection
Survey unit 204, a reliability unit 206 and a decoding unit 208.Specifically, multiple on multiple subcarriers are obtained connect
After symbol (symbol) sb_rx of receipts, channel estimation unit 200 can be according to multiple references in the symbol sb_rx of multiple receptions
Symbol, produces the channel response ch_est of multiple estimations of multiple subcarriers.Wherein, the symbol of reception can be to pass through nibble phase
Symbol produced by the modulation running such as position offset modulation (quadrature phase-shift keying, QPSK), but be not limited to
This.Channel compensate bank 202 is coupled to channel estimation unit 200 and detecting signal unit 204, can be used to according to multiple estimations
Channel response ch_est, handles the symbol sb_rx of multiple receptions on multiple subcarriers, to produce the symbol sb_ of multiple compensation
cp.That is, channel compensate bank 202 can be used the channel response ch_est of multiple estimations to compensate (such as balanced) channel
Produced effect (for example decaying (fading)).
Detecting signal unit 204 is coupled to channel compensate bank 202, can be used to receive the symbol sb_cp of multiple compensation, with
According to the symbol sb_cp of several compensation, multiple Soft Inform ations (soft information) info_ of the symbol of multiple compensation is produced
Soft and multiple demodulation symbol sb_demod.That is, detecting signal unit 204 can demodulate the symbol after compensation,
And produce the Soft Inform ation for corresponding to these symbols.Wherein, multiple Soft Inform ations can include multiple log-likelihood ratios
(loglikelihood ratio, LLR), but not limited to this.Reliability unit 206 is coupled to detecting signal unit 204, is to use
Carry out multiple reliability informations according to multiple subcarriers, produce multiple Soft Inform ation info_soft multiple weight info_wt.Solution
Code unit 208 is coupled to detecting signal unit 204 and reliability unit 206, can be used to according to multiple Soft Inform ation info_soft and
Multiple weight info_wt, decode the symbol sb_demod of multiple demodulation, to produce the bit bit_decod of multiple decodings.Solution
The coding/decoding rule of the code running institute foundation of unit 208 can have a many kinds, such as convolutional code (convolutional code),
Turbine code (turbo code), low density parity check code (LDPC code) etc., but not limited to this.
In other words, according to the present invention, decoding unit 208 will not be directly using multiple Soft Inform ation info_soft in decoding
The symbol sb_demod of multiple demodulation, and first multiple Soft Inform ation info_soft can be added with multiple weight info_wt
Power, with the efficiency for inaccurate the reduced decoding running for compensating channel estimating.The reason for this is inaccurate is caused to be rung for channel
Subcarrier position that should be corresponding is in band edge, so that the deficiency of the reference symbol quantity available for interpolation, or be only capable of making
With extrapolation etc., but not limited to this.Therefore, the present invention can improve the efficiency of decoding unit 208, the bit of the multiple decodings of reduction solution
Bit_decod error rate.
Fig. 3 is the schematic diagram of the sub-carrier configuration 30 of the embodiment of the present invention one, can be used to combine Fig. 2, following many to illustrate
Individual embodiment.For purposes of illustration only, Fig. 3 only depicts subcarrier sc_1~sc_7 in bandwidth, those skilled in the art works as
Other subcarriers not illustrated can be applied the present invention to according to following explanation.Subcarrier sc_1~sc_7 corresponds respectively to estimate
Channel response ch_1~ch_7 of survey, corresponds respectively to multiple reliability information info_r1~info_r2, and correspond respectively to
Multiple weight wt_1~wt_7.In the present embodiment, subcarrier sc_1~sc_2, sc4, sc_5 and sc_7 is for transmitting data
Symbol (i.e. data-signal), and subcarrier sc_3 and sc_6 are for transmitting with reference to symbol (i.e. reference signal).Channel estimating
Unit 202 in addition to can be according to channel response ch_3 and ch_6 is produced with reference to symbol, can also pass through after receiving with reference to symbol
Extrapolation computing obtains the channel response ch_1 of estimation, or obtains channel response ch_2, ch4, ch_ for estimating by interpolative operation
5 and ch_7, but not limited to this.
The implementation of reliability unit 206 has many kinds, can produce reliability information according to different modes, then according to this
Produce multiple weight info_wt.
In one embodiment, multiple reliability informations can include multiple signal energies of multiple subcarriers.That is,
After multiple signal energies of (or calculating) multiple subcarriers are measured, reliability unit 206 can be produced according to multiple signal energies
Raw multiple weight info_wt.For example, according to multiple signal energies, if (such as son is carried the first subcarrier of multiple subcarriers
Ripple sc_4) signal energy be less than the plurality of subcarrier the second subcarrier (such as subcarrier sc_3) signal energy, first
The weight of subcarrier is less than or equal to the weight of second subcarrier.That is, the subcarrier with higher signal energy, its
Soft Inform ation, which can be set, has higher weight.
In one embodiment, multiple reliability informations can include multiple signal to noise ratio (signal-to- of multiple subcarriers
Noise ratio, SNR).That is, after multiple signal to noise ratio of (or calculating) multiple subcarriers are measured, reliability unit
206 can produce multiple weight info_wt according to multiple signal to noise ratio.For example, according to multiple signal to noise ratio, if multiple subcarriers
The first subcarrier (such as subcarrier sc_4) signal to noise ratio be less than the plurality of subcarrier the second subcarrier (such as subcarrier
Sc_3 signal to noise ratio), the weight of the first subcarrier is less than or equal to the weight of second subcarrier.That is, with higher
The subcarrier of signal to noise ratio, its Soft Inform ation, which can be set, has higher weight.
In one embodiment, multiple reliability informations can include multiple positional informations of multiple subcarriers.That is,
After multiple positional informations of multiple subcarriers are obtained, reliability unit 206 can produce multiple power according to multiple positional informations
Weight info_wt.
For example, according to multiple positional informations, if the first subcarrier (such as subcarrier sc_1) of multiple subcarriers with
Distance between the bandwidth border of multiple subcarriers is less than the second subcarrier (such as subcarrier sc_2) and bandwidth of multiple subcarriers
Distance between border, the weight of the first subcarrier is less than or equal to the weight of the second subcarrier.That is, apart from bandwidth border
Nearer subcarrier, its Soft Inform ation can be set with relatively low weight.The reason for this setting, is attributable to closer bandwidth
The subcarrier on border, is generally only capable of obtaining its channel response using the internal difference of less exponent number, or be only capable of using the degree of accuracy compared with
Low extrapolation obtains its channel response.In the case, the channel response of the subcarrier nearer apart from bandwidth border is accurate
Degree is generally relatively low, therefore should be set with relatively low weight, to reduce the proportion of its Soft Inform ation.
For example, according to multiple positional informations, if the first subcarrier (such as subcarrier sc_1) of multiple subcarriers with
The distance having in multiple subcarriers between noisy second subcarrier (such as subcarrier sc_2) is less than the 3rd of multiple subcarriers
A distance of the subcarrier (such as subcarrier sc_4) between the second subcarrier, the weight of the first subcarrier is less than or equal to the 3rd son
The weight of carrier wave.That is, apart from nearer subcarrier is disturbed, its Soft Inform ation can be set with relatively low weight.Interference
Species have many kinds, such as across subcarrier interference (cross-subcarrier interference), chromatic noise (color
Noise), sideband noise (spur noise) etc. is disturbed, but not limited to this.Judge that the whether noisy method of subcarrier also has very
It is a variety of, whether can be judged according to the size (such as interfering energy) of interference more than a preset value interference whether there is,
Presence of interference etc., but not limited to this can be assumed according to the measurement of previous sub-carrier.
In one embodiment, multiple reliability informations can include multiple wave filters response ginseng corresponding to multiple subcarriers
Number.It is preferred that the subcarrier with compared with high filter response parameter, its Soft Inform ation, which can be set, has higher weight.Also
It is to say, according to multiple wave filter response parameters, if the first wave filter response parameter of multiple wave filter response parameters is less than multiple
Second wave filter response parameter of wave filter response parameter, the weight of the subcarrier corresponding to the first wave filter response parameter is less than
Or equal to the weight of the subcarrier corresponding to the second wave filter response parameter.In one embodiment, multiple Soft Inform ations can be divided
For multigroup Soft Inform ation, multigroup Soft Inform ation corresponds respectively to multiple weights.That is, one group of Soft Inform ation (i.e. one group subcarrier)
With identical weight.
In one embodiment, multiple reliability informations can include multiple mean squares mistake of the channel response of multiple estimations
Poor (mean square error, MSE).That is, measuring the multiple average of the channel response of (or calculating) multiple estimations
After square error, reliability unit 206 can produce multiple weight info_wt according to multiple Mean Square Errors.For example,
According to multiple Mean Square Errors, if the Mean Square Error of the first channel response of multiple channel responses is less than or equal to multiple
The Mean Square Error of the second channel response of channel response, the weight of the subcarrier corresponding to the first channel response is more than second
The weight of subcarrier corresponding to channel response.That is, the channel response with higher Mean Square Error, corresponding to it
The Soft Inform ation of subcarrier can be set with relatively low weight.
Below with an embodiment, further explain how to calculate the weight of Soft Inform ation according to Mean Square Error.According to
The leading informations such as sub-carrier positions, interference, chromatic noise, sideband noise, first define a t easet ofasubcarriers Ω, in gathering herein
Subcarrier meets one or more following conditions：(1) channel response can be obtained with interpolation or extrapolation according to reference to symbol；(2) not by
Influenceed to specific frequency domain interferences such as (or only slightly by) narrow frequency interference, chromatic noise, sideband noises.According to this set,
Mean Square Error (MSE) reference value can be obtained as follows：
MSEavg(SNR)=Σi∈ΩMSE (SNR, i)/| Ω | (formula 1)
Wherein i is subcarrier index.Then using MSE (SNR, i) and MSEavg(SNR) the average MSE ratios of a subcarrier are calculated
Value (this is averagely average for SNR) is as follows：
ρi=∫SNR[MSE(SNR,i)/MSEavg(SNR)] (formula 2)
And obtain ρiAverage value it is as follows：
ρavg=Σi∈Ωρi/ | Ω | (formula 3)
Then, N+1 critical value (threshold) of setting is as follows, and it is expressed as { T (0) ..., T (N) }, wherein T
(0)<T(1)<…<T(N)：
T (n)=2n+1ρavg, 0≤l≤N-1, T (N)=∞ (formula 4)
The Mean Square Error that is wherein averaged falls can be divided into N number of set in these interval subcarriers, and K (0) ...,
K (N-1) }, it can be expressed as：
K (0)=i | T (0)≤ρi<T (1) }, K (1)=i | T (1)≤ρi<T(2)}、…、
K (N-1)=i | T (N-1)≤ρi<T (N) } (formula 5)
In the present embodiment, N number of weight can be set according to { T (0) ..., T (N) }, it is expressed as { W (0) ..., W (N-
1) }, and by it is used for adjusting the log-likelihood ratio (LLR) that detecting signal unit 204 exported as follows：
L'i,j=W (n) * Li,j, wherein i ∈ K (n) (formula 6)
Wherein Li,jIt is expressed as the bit j log-likelihood ratio transmitted on subcarrier i, L'i,jRepresent same bit
Log-likelihood ratio after adjustment, it can be decoded unit 208 and be used in decoding.According to the definition of log-likelihood ratio, L'i,jDefinitely
Value size should be directly proportional to subcarrier i reliability, if only considering the reliability difference caused by the error of channel estimating, by
Gather the average channel estimation error of subcarrier as n is incremented by category K (n).Therefore, W (n) should be set as n decreasing function, i.e.,
The error of channel estimating is bigger, and weight is smaller；Conversely, then weight is bigger.In the present embodiment, setting weight is as follows：
W (n)=2-n, 0≤n≤N-2, W (N-1)=0 (formula 7)
Then, according to (formula 6), the log-likelihood ratio L that adjustment detecting signal unit 204 is producedi,jTo obtain L'i,j, and carry
Supply decoding unit 208 is used in the symbol of decoding demodulation, wherein 0≤i≤P-1,0≤j≤M-1, P are the number of subcarrier
Amount, M is the bit number that a symbol is transmitted on subcarrier.
It can be seen from above-described embodiment, when according to Mean Square Error to calculate weight, it can not only be directed to per height
Carrier wave calculates weight (per subcarrier), can also calculate power by after subcarrier grouping, then for each group subcarrier
Weight (per group), to reduce complexity.
The function mode of foregoing reception device 20 can be summarized as a flow 40, in receiving terminal RX, as shown in Figure 4.Stream
Journey 40 is comprised the steps of：
Step 400：Start.
Step 402：The symbol of multiple compensation on multiple subcarriers is received, with the symbol according to the plurality of compensation, is produced
Multiple Soft Inform ations of the symbol of the plurality of compensation and the symbol of multiple demodulation.
Step 404：According to multiple reliability informations of the plurality of subcarrier, multiple weights of the plurality of Soft Inform ation are produced.
Step 406：According to the plurality of Soft Inform ation and the plurality of weight, the symbol of the plurality of demodulation is decoded, it is many to produce
The bit of individual decoding.
Step 408：Terminate.
Flow 40 is the function mode for illustrating receiving apparatus 20, describe in detail and change refer to it is foregoing, in this
Do not repeat.
It is noted that reception device 20 (and the inspection of channel estimation unit therein 200, channel compensate bank 202, signal
Survey unit 204, reliability unit 206 and decoding unit 208) implementation can have many kinds.For example, can be according to design
Consider or system requirements, by channel estimation unit 200, channel compensate bank 202, detecting signal unit 204, reliability unit
206 and decoding unit 208 be integrated into one or more units.Can be with hardware (such as circuit), soft in addition, receiving configuration device 20
Part, firmware (are hardware unit and computer instruction and the combination of data, and computer instruction belongs to read-only on hardware unit with data
Software), the combination of electronic system or said apparatus realize, not limited to this.
In summary, the invention provides a kind of device and method for handling Soft Inform ation, for according to reliability information, meter
The weight of Soft Inform ation is calculated, for adjusting the proportion of Soft Inform ation.The present invention can compensate for inaccurate the reduced decoding of channel estimating
The efficiency of running, improves the output rating of system.
Presently preferred embodiments of the present invention is the foregoing is only, all equivalent changes done according to the claims in the present invention are with repairing
Decorations, should all belong to the covering scope of the present invention.
【Symbol description】
20 reception devices
200 channel estimation units
202 channel compensate banks
204 detecting signal units
206 reliability units
208 decoding units
40 flows
400th, 402,404,406,408 step
The bit of bit_decod decodings
The channel of ch_est, ch_1~ch_7 estimations
Info_soft Soft Inform ations
Info_wt, wt_1~wt_7 weights
Info_r1~info_r2 reliability informations
The symbol that sb_rx is received
The symbol of sb_cp compensation
The symbol of sb_demod demodulation
Sc_1~sc_7 subcarriers
TX transmission ends
RX receiving terminals
Claims (10)
1. a kind of reception device, includes：
One detecting signal unit, for receiving the symbol of multiple compensation on multiple subcarriers, with the symbol according to the plurality of compensation
Member, produces the multiple Soft Inform ations and the symbol of multiple demodulation of the symbol of the plurality of compensation；
One reliability unit, is coupled to the detecting signal unit, for multiple reliability informations according to the plurality of subcarrier, production
Multiple weights of raw the plurality of Soft Inform ation；And
One decoding unit, is coupled to the detecting signal unit and the reliability unit, for according to the plurality of Soft Inform ation and this is more
Individual weight, decodes the symbol of the plurality of demodulation, to produce the bit of multiple decodings.
2. reception device as claimed in claim 1, has been additionally comprised：
One channel estimation unit, for according to multiple reference symbols on the plurality of subcarrier, producing many of the plurality of subcarrier
The channel response of individual estimation；And
One channel compensate bank, is coupled to the channel estimation unit and the detecting signal unit, for according to the plurality of estimation
Channel response, handles the symbol of multiple receptions on the plurality of subcarrier, to produce the symbol of the plurality of compensation.
3. reception device as claimed in claim 1, wherein the plurality of reliability information includes the multiple of the plurality of subcarrier
Signal energy, and according to the plurality of signal energy, if a signal energy of one first subcarrier of the plurality of subcarrier is less than
One signal energy of one second subcarrier of the plurality of subcarrier a, weight of first subcarrier is less than or equal to second son
One weight of carrier wave.
4. reception device as claimed in claim 1, wherein the plurality of reliability information includes the multiple of the plurality of subcarrier
Signal to noise ratio, and according to the plurality of signal to noise ratio, if a signal to noise ratio of one first subcarrier of the plurality of subcarrier is less than the plurality of
One signal to noise ratio of one second subcarrier of subcarrier a, weight of first subcarrier is less than or equal to the one of second subcarrier
Weight.
5. reception device as claimed in claim 1, wherein the plurality of reliability information includes the multiple of the plurality of subcarrier
Positional information, and according to the plurality of positional information, if one first subcarrier of the plurality of subcarrier and the plurality of subcarrier
A distance between one bandwidth border is less than the distance between one second subcarrier of the plurality of subcarrier and the bandwidth border, and this
One weight of one subcarrier is less than or equal to a weight of second subcarrier.
6. reception device as claimed in claim 5, wherein according to the plurality of positional information, if the one first of the plurality of subcarrier
There is the distance between one second subcarrier of an interference to be less than the one of the plurality of subcarrier in subcarrier and the plurality of subcarrier
A distance between 3rd subcarrier and second subcarrier a, weight of first subcarrier is less than or equal to the 3rd subcarrier
A weight.
Made an uproar 7. reception device as claimed in claim 6, the wherein interference include in chromatic noise and sideband noise at least one
Sound.
8. reception device as claimed in claim 1, wherein the plurality of reliability information includes corresponding to the plurality of subcarrier
Multiple wave filter response parameters, and according to the plurality of wave filter response parameter, if the one of the plurality of wave filter response parameter
First wave filter response parameter is less than one second wave filter response parameter of the plurality of wave filter response parameter, first wave filter
The son that one weight of the subcarrier corresponding to response parameter is less than or equal to corresponding to the second wave filter response parameter is carried
One weight of ripple.
9. reception device as claimed in claim 1, wherein the channel that the plurality of reliability information includes the plurality of estimation rings
The multiple Mean Square Errors answered, and according to the plurality of Mean Square Error, if one first channel of the plurality of channel response
One Mean Square Error of response is less than or equal to the Mean Square Error that a second channel of the plurality of channel response is responded,
One weight of the subcarrier corresponding to first channel response is more than one that the second channel responds a corresponding subcarrier
Weight.
10. reception device as claimed in claim 1, wherein the plurality of Soft Inform ation includes multiple log-likelihood ratios, or should
Multiple Soft Inform ations are divided into multigroup Soft Inform ation, and multigroup Soft Inform ation corresponds respectively to the plurality of weight.
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| CN201610096190.0A CN107104915B (en) | 2016-02-22 | 2016-02-22 | Receiving apparatus |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101132388A (en) * | 2007-09-18 | 2008-02-27 | 沖电气（新加坡）技术中心 | Receiving method and device for receiving coded signal assisted by signal channel condition information |
| CN101911557A (en) * | 2008-01-25 | 2010-12-08 | 富士通株式会社 | Reception processing method and reception device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101132388A (en) * | 2007-09-18 | 2008-02-27 | 沖电气（新加坡）技术中心 | Receiving method and device for receiving coded signal assisted by signal channel condition information |
| CN101911557A (en) * | 2008-01-25 | 2010-12-08 | 富士通株式会社 | Reception processing method and reception device |
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