CN1937475A - Decoding apparatus and communication system receiver - Google Patents
Decoding apparatus and communication system receiver Download PDFInfo
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Abstract
The invention improves the receiving feature of grouping comm. system of using HARQ method. In the receiver and its decoder of this comm. system, there are receive quality test device (RQT) 6, weighting device (WD) 700 and data generation device (DG) 7. The RQT tests the un-decoded received quality Q1 of the 1st receive data sequence Pr1 and the received quality Q2 of the 2nd receive data sequence Pr2 which is resent based on the mixed auto re-request HARQ. Comparing the tested received qualities Q1 and Q2, the WD adds high weight to the hi-quality while low weight to the low-quality. The DG produces decoding data sequences Pd according to the weighted receive data sequences Pr1 and Pr2.
Description
Technical field
The present invention relates to a kind of decoding device and communication system receiver, more particularly, relate to a kind of decoding device and communication system receiver that is used for the digital communication system packet communication.
Background technology
Mixed automatic repeat request (HARQ) method has been actually used in (for example, referring to the open No.2003-179582 of uncensored Japan Patent) in the packet communication system.If the Cyclic Redundancy Check mistake takes place, then a HARQ is sent to transmitter from receiver, described cyclic redundancy mistake is owing to noise, high frequency (RF) noise or other the noise of radio transmission path, and prevention receiver decoded packet communication data.
After receiving a HARQ, transmitter sends the packet communication data to receiver once more.With with the different data sequence of packet communication data that sends first, send based on HARQ and the packet communication data that send once more.
Actual packet communication data transmission procedure is as follows.At first, by the transmission data sequence as the packet communication data of transmitter preparation such as { P (0), P (1), P (2) }, and initialization first sends data sequence { P (0), P (1) }.At this, it is 0 or 1 transmission data sequence that P (k) is one.If receiver can not be correctly decoded the packet communication data of this transmission, then this receiver just sends a HARQ to transmitter.When receiving HARQ, transmitter just resends second and sends data sequence { P (0), P (2) }.
In this receiver, send data sequence { P (0) based on having received first, P (1) } first receiving data sequence { Pr1 (0), Pr1 (1) } and received the second transmission data sequence { P (0) that resends, P (2) } second receiving data sequence { Pr2 (0), Pr2 (2) } produce decoded data sequence { Pd (0), Pd (1), Pd (2) }, and this decoded data sequence Pd decoded.At this, Pd (k) is a decoded data sequence with likelihood.In the first receiving data sequence Pr1 (0) and the second receiving data sequence Pr2 (0), both transmission data sequences are identical, but the accepting state of receiving data sequence is different, and therefore, both likelihoods are different.Receiver passes through handle from first receiving data sequence { Pr1 (0), Pr1 (1) } and second receiving data sequence { Pr2 (0), Pr2 (2) } in overlapping receiving data sequence Pr1 (0) and Pr2 (0) get and make likelihood addition result { Pr1 (0)+Pr2 (0) } and produce decoded data sequence, described first receiving data sequence { Pr1 (0), Pr1 (1) } initially receive, described second receiving data sequence { Pr2 (0), Pr2 (2) } receive by resending, and this decoded data sequence is decoded.
Yet, in above-mentioned radio communications system receiver and below reckoning without a bit.When sending HARQ from receiver, first receiving data sequence comprises a rank mistake that does not allow correction decoder.Because decoded data sequence is by in conjunction with first receiving data sequence with may not contain mistake and second receiving data sequence that can be corrected produces, so decoded data sequence might be damaged.In other words, might be able to not be correctly decoded based on HARQ and second receiving data sequence that sends once more, and may reduce the receptivity of receiver.
Summary of the invention
The object of the present invention is to provide a kind of decoding device and communication system receiver, they can improve the receptivity of the packet communication system that wherein uses the HARQ method.
According to an aspect of the present invention, decoding device is equipped with: quality of reception measurement component, the quality of reception of the quality of reception of first receiving data sequence that measurement fails to decode and second receiving data sequence that resends based on automatic repetitive requests; The weighting parts, relatively the quality of reception of first receiving data sequence and the quality of reception of second receiving data sequence are carried out high weighting to having higher quality of reception person, carry out low weighting to having low quality of reception person; And data generate parts, according to based on weighting first receiving data sequence and the weighting of second receiving data sequence produce decoded data sequence.
According to another aspect of the present invention, decoding device is equipped with: quality of reception measurement component, measure the quality of reception of first receiving data sequence fail to decode and the quality of reception of second receiving data sequence that resends according to automatic repetitive requests; Data generate parts, produce decoded data sequence based on first receiving data sequence and second receiving data sequence; Therein, data generate parts and have data generation calculating unit, wherein, a plurality of counting circuits are installed according to circumstances, and these counting circuits produce decoded data sequence based on first receiving data sequence and second receiving data sequence; And scheme decision parts, be identified for selecting data to generate one or the scheme of another counting circuit in the calculating unit based on the quality of reception.
Still according to another aspect of the present invention, has a decoding device in the communication system receiver, be equipped with on this decoding device: quality of reception measurement component, the quality of reception of the quality of reception of first receiving data sequence that measurement fails to decode and second receiving data sequence that resends based on automatic repetitive requests; The weighting parts compare the quality of reception of first receiving data sequence and the quality of reception of second receiving data sequence, and carry out high weighting to having higher quality of reception person, carry out low weighting to having low quality of reception person; Also be equipped with data and generate parts, these parts according to based on weighting first receiving data sequence and the weighting of second receiving data sequence produce decoded data sequence.
Description of drawings
By the description of carrying out below in conjunction with the accompanying drawing that an example exemplarily is shown, after this above-mentioned purpose and characteristics with other of the present invention will become apparent, wherein:
Fig. 1 is a block diagram, shows the configuration according to the receiver of the radio communications system of embodiments of the invention 1.
Fig. 2 is the structure chart according to the radio communications system receiver of embodiments of the invention 1.
Fig. 3 shows flowing of packet communication data in radio communications system shown in Figure 2.
Fig. 4 is a sequence chart, shows the method that the packet communication data decode in receiver shown in Figure 1 is handled.
Fig. 5 is a block diagram, shows the configuration according to the receiver of the radio communications system of embodiments of the invention 2.
Embodiment
Main points of the present invention are the quality of reception of measurement data, according to the likelihood of the quality of reception specified data that measures, and according to likelihood generating solution code data.At this, the quality of reception comprises channel quality (signal to noise ratio (snr)), bit error rate (BER) etc. at least.Specifically, for example, measure the channel quality B (SNR (B)) that the first channel quality A (SNR (A)) and second that receives data Pr1 receives data Pr2, if a back channel quality B is higher than previous channel quality A, i.e. (SNR (A)＜SNR (B)), just be set to higher likelihood (Pd=Pr2) by the second reception data Pr2 and generate decoded data (pre decoding data) Pd, at this, second receives data Pr2 has obtained channel quality B and preferential these second reception data Pr2 that uses.Because it is very high to contain the probability of a plurality of mistakes in the channel quality A of the first reception data Pr1, therefore, its likelihood is just lower.In an embodiment of the present invention, in order to improve the degree of freedom, available following equation is expressed decoded data Pd.In the equation below, W1 and W2 are weight coefficients.Wait to determine weight coefficient W according to channel quality, bit error rate.
Pd＝W1
*Pr1+W2
*Pr2
Describe preferred embodiment of the present invention below with reference to accompanying drawings in detail.
(specific embodiment 1)
[being equipped with the configuration of the radio communications system and the receiver of decoding device]
Make up a radio communications system that uses the HARQ method according to an embodiment of the invention, wherein be equipped with as shown in Figure 2 base station 1 and receiver 2.1 transmitting antenna 10 sends the packet communication data from the base station, and receives this data by the reception antenna 20 of receiver 2.
As shown in Figure 2, receiver 2 is equipped with: quality of reception measurement mechanism (quality of reception measurement component) 6, measure the quality of reception Q1 of the first receiving data sequence Pr1 fail to decode and the quality of reception Q2 of the second receiving data sequence Pr2 that resends based on HARQ; Weighting device (weighting parts) 700 compares the quality of reception Q1 of the first receiving data sequence Pr1 and the quality of reception Q2 of the second receiving data sequence Pr2, and carries out high weighting to having higher quality of reception person, hangs down weighting to having low quality of reception person; Data generating device (data generation parts) 7, according to based on weighting the first receiving data sequence Pr1 and the weighting of the second receiving data sequence Pr2 generate decoded data sequence (pre decoding data sequence) Pd.In addition, as shown in Figure 2, receiver 2 is equipped with reception antenna 20, and it receives the packet communication data from base station 1, and receiver 2 also is equipped with high-frequency model 3, Analog Baseband device (ABB) 4, demodulator 5, viterbi decoder 8 and CRC decoder 9.
In receiver 2, receive k receiving data sequence Prk (wherein based on HARQ is extra, k be one greater than 2 positive integer), quality of reception measurement mechanism (quality of reception measurement component) 6 is measured the quality of reception Qk of k receiving data sequence Prk, weighting device 700 is weighted k receiving data sequence Prk based on measurement result, data generating device 7 based on weighting k receiving data sequence Prk produce decoded data sequence Pd.
After demodulator 5 is digital signal with analog-signal transitions, the first receiving data sequence Pr1, the second receiving data sequence Pr2 and k receiving data sequence Prk are input in quality of reception measurement mechanism 6 and the data generating device 7.
In fact, the quality of reception Q method of measurement that can be used by quality of reception measurement mechanism 6 is so a kind of method: utilize this method, can come estimated channel quality according to a training sequence known signal in each sequence from be included in from first receiving data sequence Pr1 to k receiving data sequence Prk; Utilize this method, can carry out Veterbi decoding processing or quick (turbo) decoding processing to each receiving data sequence from the first receiving data sequence Pr1 to k receiving data sequence Prk, and measure bit error rate according to the data sequence that the signal that receives that is produced by decoding gets.Also can in quality of reception measurement mechanism 6, use the method for measurement of the measurement of the measurement of RXQUAL or MeanBEP as quality of reception Q.
In embodiment 1, weighting device 700 is positioned among the data generating device 7, and is equipped with: coefficient determination device (coefficient decision parts) 701, decide weight coefficient W according to the quality of reception Q that is measured by quality of reception measurement mechanism 6; Multiplier 702 to 704 is weighted the first receiving data sequence Pr1, the second receiving data sequence Pr2 and k receiving data sequence Prk respectively according to weight coefficient W.
More particularly, in weighting device 700, decide weight coefficient W1 by coefficient determination device 701 according to the quality of reception Q1 of the first receiving data sequence Pr1 that measures by quality of reception measurement mechanism 6, and come the first receiving data sequence Pr1 is carried out the corresponding weighting with weight coefficient W1 by multiplier 702 based on the first receiving data sequence Pr1 and weight coefficient W1.Similarly, decide weight coefficient W2 by coefficient determination device 701 according to the quality of reception Q2 of the second receiving data sequence Pr2 that measures by quality of reception measurement mechanism 6, and come second receiving data sequence Pr2 carried out the corresponding weighting with weight coefficient W2 by multiplier 703 according to the second receiving data sequence Pr2 and weight coefficient W2.According to identical mode, decide weight coefficient Wk by coefficient determination device 701 according to the quality of reception Qk of k the receiving data sequence Prk that measures by quality of reception measurement mechanism 6, and come k receiving data sequence Prk carried out the corresponding weighting with weight coefficient Wk by multiplier 704 according to k receiving data sequence Prk and weight coefficient Wk.
In embodiment 1, in weighting device 700, used the multiplier 702 to 704 that weight coefficient is combined with receiving data sequence, still, the present invention is not limited to this, for example, can also use computing element, adder or similar device.
Weighting device 700 and adder 710 are housed in the data generating device 7, described adder by weighting device 700 weightings the first receiving data sequence Pr1, the second receiving data sequence Pr2 add with k receiving data sequence Prk and be in the same place, and generation decoded data sequence Pd.
[operation of radio communications system and receiver]
To utilize Fig. 1 that the operation of radio communications system and receiver is described to Fig. 4 now.
At first, as shown in Figures 2 and 3, on base station (transmitter) 1, generate and send data sequence (coding data sequences) Pt{P (0), (P1) ..., P (k) }.In fact the 1 transmission data sequence Pt that sends generates by making up a plurality of data sequence P (i) from the base station.At this, first sends data sequence Pt1{P (0), P (1) }, second sends data sequence Pt2{P (0), P (2) } ..., k sends data sequence Ptk{P (0), (k) } generate as sending data sequence Pt.Base station 1 at first sends first by transmitting antenna 10 and sends data sequence Pt1{P (0), P (1) }.
Receive this first transmission data sequence Pt1 by receiver 2 by reception antenna 20.Transmission path noise and receiver 2 The noise continue to exist, and in receiver 2, the first transmission data sequence Pt1 is as the first receiving data sequence Pr1{Pr1 (0), Pr1 (1) } and received.By high-frequency model 3, Analog Baseband device 4 and demodulator 5 the first receiving data sequence Pr1 is input in the data generating device 7.In data generating device 7, produce the first decoded data sequence Pd1{Pr1 (0), Pr1 (1) } based on the first receiving data sequence Pr1.In embodiment 1, data generating device 7 is directly exported the first receiving data sequence Pr1 as the first decoded data sequence Pd1.
By Viterbi decoder shown in Figure 28 this first decoded data sequence Pd1 that decodes, and on these packet communication data of having decoded, carry out Cyclic Redundancy Check by CRC decoder 9.If the result of cyclic redundancy check (CRC) is a decoded packet communication data correctly not as yet, and has mistake to occur, so, receiver 2 is just to HARQ of transmitter 1 transmission.
Based on HARQ, base station 1 sends second from transmitting antenna 10 and sends data sequence Pt2{P (0), P (2) }.
Receive this second transmission data sequence Pt2 by receiver 2 by reception antenna 20.Transmission path noise and receiver 2 The noise continue to exist, and in receiver 2, the second transmission data sequence Pt2 is as the second receiving data sequence Pr2{Pr2 (0), Pr2 (2) } and received.
The second receiving data sequence Pr2 is input in data generating device 7 and the quality of reception measurement mechanism 6.In embodiment 1, though do not illustrate in Fig. 1 and Fig. 2, buffer storage (for example, random access memory) was installed in stage before data generating device 7 and the quality of reception measurement mechanism 6.The first receiving data sequence Pr1 has been stored in this buffer storage.Therefore, the first receiving data sequence Pr1 is also among the second receiving data sequence Pr2 is imported into data generating device 7 and quality of reception measurement mechanism 6.As shown in Figure 1, in quality of reception measurement mechanism 6, measure the quality of reception Q1 of the first receiving data sequence Pr1 and measure the quality of reception Q2 of the second receiving data sequence Pr2.
To output in the coefficient determination device 701 of the weighting device 700 that is installed in the data generating device 7 by quality of reception Q1 and the quality of reception Q2 that quality of reception measurement mechanism 6 is measured.In coefficient determination device 701, relatively quality of reception Q1 and quality of reception Q2 are provided with high weight coefficient to the higher quality of reception, the weight coefficient lower to lower quality of reception setting.Here, suppose that the quality of reception Q1 of the first receiving data sequence Pr1 is higher than the quality of reception Q2 of the second receiving data sequence Pr2, and, for quality of reception Q2 a high weight coefficient W2 is set simultaneously for quality of reception Q1 is provided with a low weight coefficient W1.
As shown in Figure 1, in weighting device 700, the first receiving data sequence Pr1 that utilizes multiplier 702 will be input in the data generating device 7 multiplies each other with the weight coefficient W1 that exports from coefficient determination device 701.Similarly, in weighting device 700, the second receiving data sequence Pr2 that utilizes multiplier 703 will be input in the data generating device 7 multiplies each other with the weight coefficient W2 that exports from coefficient determination device 701.
Utilize the adder 710 in the data generating device 7 shown in Fig. 1, will be by weighting device 700 weightings the first receiving data sequence Pr1 and the second receiving data sequence Pr2 added together.As shown in Figure 3 and Figure 4, in adder 710, according to the first receiving data sequence Pr1{Pr1 (0) } and the second receiving data sequence Pr2{Pr2 (0) weighting, these two data sequences are combined, and directly export the unweighted first receiving data sequence Pr1{Pr1 (1) and the second receiving data sequence Pr2{Pr2 (2).Therefore, adder 710-is that data generating device 7-can be the second receiving data sequence Pr2{Pr2 (0) that multiplies each other with high weight coefficient W2 } add high likelihood, produce the second decoded data sequence Pd2{Pd2 (0), Pr1 (1), Pr2 (2) }, and export this decoded data sequence Pd2.
As the first decoded data sequence Pd1, Pd2 decodes with 8 pairs of these second decoded data sequence of Viterbi decoder shown in Figure 2, and these packet communication data of having decoded are carried out cyclic redundancy check (CRC) with 9 pairs of CRC decoders.If the result of cyclic redundancy check (CRC) is a decoded packet communication data and have mistake to occur correctly not as yet, then receiver 2 sends a HARQ once more to transmitter 1.After this, repeat identical processing till the appearance that is free from mistakes among the result in cyclic redundancy check (CRC).
Like this, according to embodiment 1, measure quality of reception Q1 and the Q2 of the first receiving data sequence Pr1 and the second receiving data sequence Pr2, the quality of reception according to the first receiving data sequence Pr1 and the second receiving data sequence Pr2 is weighted them, and according to weighting the first receiving data sequence Pr1 and the second receiving data sequence Pr2 can produce the second decoded data sequence Pd2, make it possible to produce the second decoded data sequence Pd2 that can be correctly decoded.Therefore can realize receiver 2, described receiver 2 can improve the receptivity in packet communication system that uses the HARQ method and the radio communications system that comprises this receiver 2.
(specific embodiment 2)
In embodiments of the invention 2, an improved example according to the data generating device on the receiver in the radio system of embodiment 127 has been described.
As shown in Figure 5, be equipped with according to the receiver in the radio system of embodiment 22: quality of reception measurement mechanism 6, the quality of reception Q1 of the first receiving data sequence Pr1 that measurement fails to decode, the quality of reception Q2 of the second receiving data sequence Pr2 that resends based on automatic repetitive requests and the quality of reception Qk of k receiving data sequence Prk; Data generating device 7 produces decoded data sequence Pd based on the first receiving data sequence Pr1, the second receiving data sequence Pr2 and k receiving data sequence Prk; Wherein, data generating device 7 has data and generates calculation element (data generation calculating unit) 730, in this device, a plurality of counting circuits 731 to 733 according to circumstances have been installed, and these counting circuits produce decoded data sequence Pd based on the first receiving data sequence Pr1, the second receiving data sequence Pr2 and k receiving data sequence Prk; And scheme (scenario) determination device (scheme decision parts) 720, be used for selecting one from the counting circuit 731 to 733 that data generate calculation element 730 according to quality of reception Q.Except this data generating device 7, be the same with configuration according to the receiver 2 of embodiment 1 according to the configuration of the receiver 2 of embodiment 2.
Now with the operation of the data generating device 7 of the above-mentioned receiver 2 of brief description.For example, when being input to the first receiving data sequence Pr1 in the receiver 2, this first receiving data sequence Pr1 also is imported among data generating device 7 and the quality of reception measurement mechanism 6.
In quality of reception measurement mechanism 6, measure the quality of reception Q1 of the first receiving data sequence Pr1.Quality of reception Q1 is outputed in the scheme determination device 720, described scheme determination device 720 is selected a circuit according to quality of reception Q1 among the counting circuit 731 to 733 of data generation calculation element 730, described data generate calculation element 730 can produce a decoded data sequence Pd that can be correctly decoded.
Be imported into the circuit of the first receiving data sequence Pr1 in the data generating device 7, and can have produced the decoded data sequence Pd that can be correctly decoded by from the counting circuit 731 to 733 of data generation calculation element 730, selecting.
As the explanation that do according to the operation of 1 pair of receiver 2 of embodiment the front, Pd decodes by 8 pairs of these decoded data sequence of Viterbi decoder shown in Figure 2, and these packet communication data of having decoded are carried out cyclic redundancy check (CRC) with 9 pairs of CRC decoders.If the result of cyclic redundancy check (CRC) is not correctly decoded the packet communication data as yet, and have mistake to occur, then receiver 2 sends a HARQ to transmitter 1.After this, repeat identical processing, till occurring up to being free from mistakes among the result in cyclic redundancy check (CRC).
Like this, according to embodiment 2, determined to put on the scheme of the quality of reception Q1 of the first receiving data sequence Pr1, the second receiving data sequence Pr2 and k receiving data sequence Prk respectively to Qk, and by carrying out computing, thereby make it possible to generate the decoded data sequence Pd that can be correctly decoded through a circuit that meets in the counting circuit 731 to 733 of this scheme.
As mentioned above, according to the present invention, can provide the decoding device and the communication system receiver that improve receptivity in the packet communication system that can use the HARQ method therein.
In other words, decoding device of the present invention has a such configuration: quality of reception measurement component, measure the quality of reception of first receiving data sequence fail to decode and the quality of reception of second receiving data sequence that resends based on HARQ; The weighting parts, the quality of reception of first receiving data sequence and second receiving data sequence relatively, and carry out high weighting to having higher quality of reception person, hang down weighting to having low quality of reception person; And data generate parts, these parts according to based on weighting the first receiving data sequence Pr1 and the weighting of the second receiving data sequence Pr2 produce decoded data sequence.
According to this configuration, measure the quality of reception of first receiving data sequence and second receiving data sequence, the quality of reception according to them is weighted first receiving data sequence and second receiving data sequence, and can be according to weighting first receiving data sequence and second receiving data sequence produce decoded data sequence, thereby can generate the decoded data sequence that can be correctly decoded.
Decoding device of the present invention has a such configuration, and wherein, above-mentioned quality of reception measurement component comes estimated channel quality (SNR) according to the training sequence known signal that is contained in first receiving data sequence and second receiving data sequence.
According to this configuration, quality of reception measurement component can rely on measures the quality of reception about the channel quality of first receiving data sequence and second receiving data sequence.
Decoding device of the present invention has a such configuration, wherein, above-mentioned quality of reception measurement component is to first receiving data sequence and second receiving data sequence is carried out the Veterbi decoding processing or fast decoding is handled, and measures bit error rate (BER) according to the data sequence that the signal that receives that is generated by decoding produces.
According to this configuration, quality of reception measurement component can rely on measures the quality of reception about the bit error rate of first receiving data sequence and second receiving data sequence.
Decoding device of the present invention has a such configuration, wherein, and above-mentioned quality of reception measurement component measure R XQUAL (quality of reception) or measurement MeanBEP (average bit error probability).
According to this configuration, this quality of reception measurement component can rely on RXQUAL or MeanBEP about first receiving data sequence and second receiving data sequence to measure the quality of reception.
Decoding device of the present invention has a such configuration, and wherein, above-mentioned data generate parts based on the quality of reception of being measured by quality of reception measurement component, generate a decoded data sequence according to first receiving data sequence and second receiving data sequence.
According to this configuration, making in first receiving data sequence and second receiving data sequence has higher quality of reception person to have high likelihood, making has low quality of reception person to have low likelihood in first receiving data sequence and second receiving data sequence, and can prevent the data corruption that the receiving data sequence owing to the low quality of reception causes, make it possible to produce the decoded data sequence that can be correctly decoded.
Decoding device of the present invention has a such configuration, and wherein, above-mentioned data generate parts and are equipped with: the coefficient determination device, and described coefficient determination device decides weight coefficient according to the quality of reception of being measured by quality of reception measurement component; Produce the parts of decoded data sequence based on first receiving data sequence, second receiving data sequence and weight coefficient.
According to this configuration, the quality of reception based on first receiving data sequence and second receiving data sequence decides weight coefficient, and weight is applied on the likelihood of first receiving data sequence and second receiving data sequence, makes it possible to produce the decoded data sequence that can be correctly decoded.
Decoding device of the present invention disposes: quality of reception measurement component, the quality of reception of the quality of reception of first receiving data sequence that measurement fails to decode and second receiving data sequence that resends based on automatic repetitive requests; Data generate parts, produce a decoded data sequence based on first receiving data sequence and second receiving data sequence; Wherein, data generate parts and have a data generation calculating unit, wherein, described data generate in the calculating unit a plurality of counting circuits according to circumstances have been installed, and these counting circuits produce a decoded data sequence based on first receiving data sequence and second receiving data sequence; And scheme decision parts, decide or the scheme of another counting circuit that is used for selecting data generation calculating unit based on the quality of reception.
According to this configuration, determine to put on the scheme of the quality of reception of first receiving data sequence and second receiving data sequence respectively, and carry out computing, thereby make it possible to produce the decoded data sequence that can be correctly decoded by passing the counting circuit that is consistent with this scheme.
Communication system receiver of the present invention has a configuration of assembling above-mentioned arbitrary decoding device.
According to this configuration, decoding device can produce a decoded data sequence that can be correctly decoded based on the quality of reception of first receiving data sequence and second receiving data sequence; Thereby make it possible to improve the quality of reception of receiver.In addition, as the result that can improve the receiver quality of reception, can improve the throughput of whole communication system.
Therefore, has the effect that to improve the quality of reception according to decoding device of the present invention and communication system receiver, and as decoding device and communication system receiver is that effectively described decoding device and communication system receiver can be carried out the generation of decoded data in mobile communication terminal, mobile communication base station, bluetooth (Bluetooth) or optical communication system and similar system.
The invention is not restricted to the foregoing description, in the case without departing from the scope of the present invention, can carry out variations and modifications.
The Japanese patent application No.2004-125949 that the application submitted to based on April 21st, 2004, its full content is contained in this by reference.
Claims (7)
1. decoding device comprises:
Quality of reception measurement component is measured the quality of reception of first receiving data sequence fail to decode and the quality of reception of second receiving data sequence that resends according to automatic repetitive requests;
The weighting parts, the quality of reception of the quality of reception of more described first receiving data sequence and described second receiving data sequence, and carry out high weighting to having higher quality of reception person, carry out low weighting to having low quality of reception person; And
Data generate parts, according to based on weighting described first receiving data sequence and the weighting of described second receiving data sequence produce decoded data sequence.
2. according to the decoding device of claim 1, wherein, described quality of reception measurement component comes estimated channel quality according to the training sequence known signal that is included in described first receiving data sequence and described second receiving data sequence.
3. according to the decoding device of claim 1, wherein, described quality of reception measurement component is to described first receiving data sequence and described second receiving data sequence carries out the Veterbi decoding processing or fast decoding is handled, and measures bit error rate according to the data sequence that the signal decoding that receives that is produced is generated.
4. according to the decoding device of claim 1, wherein, described quality of reception measurement component is measured the quality of reception or average bit error probability.
5. according to the decoding device of claim 1, wherein, described data generate parts and comprise:
The coefficient determination device decides weight coefficient according to the quality of reception that is measured by described quality of reception measurement mechanism; And
Produce the parts of decoded data sequence based on described first receiving data sequence, described second receiving data sequence and described weight coefficient.
6. decoding device comprises:
Quality of reception measurement component is measured the quality of reception of first receiving data sequence fail to decode and the quality of reception of second receiving data sequence that resends according to automatic repetitive requests; And
Data generate parts, produce decoded data sequence based on described first receiving data sequence and described second receiving data sequence;
Wherein, described data generation parts have:
Data generate calculating unit, wherein, a plurality of counting circuits have been installed according to circumstances, and these counting circuits produce decoded data sequence based on described first receiving data sequence and described second receiving data sequence; And
Scheme decision parts decide one or the scheme of selecting in the described data generation calculating unit of another counting circuit based on the described quality of reception.
7. a communication system receiver comprises the decoding device according to claim 1.
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| CN103190110A (en) * | 2010-11-05 | 2013-07-03 | 捷讯研究有限公司 | HARQ soft bit buffer partitioning for carrier aggregation |
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| CN103190110A (en) * | 2010-11-05 | 2013-07-03 | 捷讯研究有限公司 | HARQ soft bit buffer partitioning for carrier aggregation |
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