CN1960554A - Device and method capable of detecting and receiving multicarrier jointly - Google Patents
Device and method capable of detecting and receiving multicarrier jointly Download PDFInfo
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- CN1960554A CN1960554A CNA2006101146241A CN200610114624A CN1960554A CN 1960554 A CN1960554 A CN 1960554A CN A2006101146241 A CNA2006101146241 A CN A2006101146241A CN 200610114624 A CN200610114624 A CN 200610114624A CN 1960554 A CN1960554 A CN 1960554A
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Abstract
The apparatus thereof comprises: multicarrier signals receiving module, frequency-mixing processing module, multicarrier signal processing module, jointly-checking module, and decoding and outputting module. The method thereof comprises: receiving multicarrier signals, and mixing the received multicarrier signals; separating the mixed multicarrier signals and converting them to multi-path digital baseband signals; jointly checking the multi-path digital baseband signals, and decoding and outputting the checked data information.
Description
Technical field
The present invention relates to a kind of wireless communication technology, relate in particular to the apparatus and method that the multicarrier joint-detection in a kind of TD-SCDMA (TimeDivision-Synchronous Code Division Multiple Access, TD SDMA) system receives.
Background technology
Along with the following radio multimedium business demand growing to high speed data transfer, require B3G (back three generations) mobile communication system standard must have some characteristics of suitable transmitting high speed data business, for example, high data volume, high sudden, high reliability etc.
For guaranteeing the competitiveness of B3G mobile communication system to other mobile communication system, 3GPP (3G (Third Generation) Moblie affiliate) has proposed the LTE (Long Term Evolution plan) of B3G mobile communication system, at this Long Term Evolution in the works, the TD-SCDMA standard of TDD (time division duplex) MC (multicarrier) is listed in one of candidate standard.The power system capacity that above-mentioned multi-carrier TD-SCDMA system provides in theory is N a times of single carrier TD-SCDMA system, and N described here represents the number of carrier wave.Therefore, multi-carrier TD-SCDMA system can provide higher message transmission rate, and how colourful multimedia service is provided, and higher service quality is provided.
In above-mentioned multi-carrier TD-SCDMA system, have only realization that multi-carrier signal is separated into single-carrier signal, the multiple access in the ability cancellation in communication systems disturbs and multipath disturbs, and reaches the purpose of the soft bit information that detects each user of output.
Summary of the invention
The present invention is directed to the shortcoming of prior art, the apparatus and method that provide a kind of multicarrier joint-detection to receive can realize separation and joint-detection to multi-carrier signal.
Multicarrier joint-detection receiving system of the present invention comprises:
The multi-carrier signal receiver module is used for receiving the multi-carrier signal of multicarrier system;
The Frequency mixing processing module, the multi-carrier signal that is used for the multi-carrier signal receiver module is received carries out mixing;
The multi-carrier signal processing module is used for the multi-carrier signal after the mixing of Frequency mixing processing module being separated and being converted to the multi-path digital baseband signal;
The joint-detection module is used for each way word baseband signal of multi-carrier signal processing module output is carried out joint-detection, obtains user data information;
The decoding output module is used for the user data information of associating detection module output is decoded and exported.
Multicarrier joint-detection method of reseptance of the present invention, its step comprises:
Step 2 is separated the multi-carrier signal after the mixing and is converted to the multi-path digital baseband signal;
Step 3 is carried out joint-detection to the multi-path digital baseband signal, and with the decoding of the data message after joint-detection output.
Among the present invention, at first the multi-carrier signal that antenna end is received separates, obtain the multi-path digital baseband signal of single carrier, respectively the multi-path digital baseband signal is carried out joint-detection again, and according to time sequencing output user data information, at last to the output of decoding of these user data informations, thereby realized utilizing the multi-carrier signal system to finish transfer of data fast and accurately.
Description of drawings
Fig. 1 is the structural representation of multicarrier joint-detection receiving system of the present invention;
Fig. 2 is the flow chart of multicarrier joint-detection method of reseptance of the present invention;
Fig. 3 is the monolateral band spectrum structure of antenna end multi-carrier signal schematic diagram among the present invention;
Fig. 4 is the monolateral band spectrum structure of the multicarrier intermediate-freuqncy signal schematic diagram after the Frequency mixing processing among the present invention;
Fig. 5 is the monolateral band spectrum structure of the multicarrier zero intermediate frequency signals schematic diagram after the Frequency mixing processing among the present invention;
The multi-carrier signal processing module structural representation of Fig. 6 among the present invention the intermediate-freuqncy signal in analog signal territory being separated;
The multi-carrier signal processing module structural representation of Fig. 7 among the present invention the zero intermediate frequency signals in analog signal territory being separated;
The multi-carrier signal processing module structural representation of Fig. 8 among the present invention the intermediate-freuqncy signal of domain digital signal being separated;
The multi-carrier signal processing module structural representation of Fig. 9 among the present invention the zero intermediate frequency signals of domain digital signal being separated;
Figure 10 is for carrying out the joint-detection modular structure schematic diagram of parallel cascade joint-detection to the multichannel carrier baseband signal among the present invention;
Figure 11 is for carrying out the joint-detection modular structure schematic diagram of serially concatenated joint-detection to the multichannel carrier baseband signal among the present invention.
Embodiment
Among the present invention, at first multi-carrier signal is separated, on the basis of each way word baseband signal that separation obtains, carry out joint-detection again, thereby realized utilizing the multi-carrier signal system to finish transfer of data fast and accurately.
The present invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, multicarrier joint-detection receiving system of the present invention comprises multi-carrier signal receiver module, Frequency mixing processing module, multi-carrier signal processing module, joint-detection module and decoding output module.
Wherein, the multi-carrier signal receiver module is used for receiving the multi-carrier signal of multicarrier system.This module can in multicarrier system, receive multi-carrier signal by antenna corresponding to the antenna in the multicarrier system.Provided the monolateral band spectrum structure of the multi-carrier signal that antenna end receives among Fig. 3, by among Fig. 3 as can be seen, each carrier wave has identical bandwidth.
The Frequency mixing processing module, the multi-carrier signal that is used for the multi-carrier signal receiver module is received carries out mixing.This Frequency mixing processing module can obtain the multicarrier intermediate-freuqncy signal after multi-carrier signal is carried out Frequency mixing processing.The monolateral band frequency spectrum of described multicarrier intermediate-freuqncy signal as shown in Figure 4.This Frequency mixing processing module also can obtain the multicarrier zero intermediate frequency signals after multi-carrier signal is carried out Frequency mixing processing.The monolateral band frequency spectrum of described multicarrier zero intermediate frequency signals as shown in Figure 5.
The multi-carrier signal processing module is used for the multi-carrier signal after the mixing of Frequency mixing processing module being separated and being converted to the multi-path digital baseband signal.
This multi-carrier signal processing module comprises multi-carrier signal separation module and mould/number conversion module.
Multi-carrier signal after the mixing of Frequency mixing processing module is an analog signal, and this analog signal changes the multi-path digital baseband signal into after handling through the multi-carrier signal processing module.
The multi-carrier signal processing module multi-carrier signal after the multi-carrier signal separation module is to mixing is earlier separated, and through A/D converter each the road single-carrier signal after separating is changed again.In such cases, what the multi-carrier signal separation module obtained is the multi-carrier signal in analog signal territory.
As shown in Figure 6, when the multi-carrier signal after the mixing is the intermediate-freuqncy signal in analog signal territory, described multi-carrier signal separation module comprises the multichannel band pass filter 1 corresponding with the carrier number N of multi-carrier signal, band pass filter 2 ... band pass filter N is connected with multichannel A/D converter 1, A/D converter 2 at the output of each band pass filter ... A/D converter N.The multicarrier intermediate-freuqncy signal in the analog signal territory after the mixing of Frequency mixing processing module, carrying out filtering by each band pass filter separates, obtain each road single-carrier signal, again each road single-carrier signal is carried out mould/number conversion respectively, obtain each way word baseband signal 1, digital baseband signal 2 ... digital baseband signal N.The centre frequency of each carrier wave in the intermediate frequency multi-carrier signal that the centre frequency of each band pass filter described here is corresponding respectively, and the bandwidth of described each band pass filter is identical with the bandwidth of corresponding carrier wave in the intermediate frequency multi-carrier signal.
As shown in Figure 7, when the multi-carrier signal after the mixing is the zero intermediate frequency signals in analog signal territory, described multi-carrier signal separation module also can comprise multichannel frequency spectrum shift module 1, the frequency spectrum shift module 2 corresponding with the carrier number N of multi-carrier signal ... frequency spectrum shift module N and corresponding multichannel low pass filter 1, low pass filter 2 ... low pass filter N.Described frequency spectrum shift module is used for zero intermediate frequency signals is carried out frequency spectrum shift, and the unit impulse response signal that each frequency spectrum shift module utilization has a corresponding frequencies skew multiplies each other with corresponding zero intermediate frequency signals, thus the moving of realization carrier wave.Export each corresponding road low pass filter to through each the road signal behind the frequency spectrum shift, described each low pass filter has the bandwidth identical with each corresponding carrier wave, therefore, through can the output single carrier signal behind the low pass filter, thereby realize the separation of multi-carrier signal.Each road single-carrier signal after the separation is carried out mould/number conversion by each road A/D converter of correspondence, finally obtains each way word baseband signal 1, digital baseband signal 2 ... digital baseband signal N.
The multi-carrier signal processing module also can be carried out mould/number conversion to the multi-carrier signal after the mixing earlier, obtains digital signal, through the multi-carrier signal separation module multi-carrier signal is separated again.In such cases, what the multi-carrier signal separation module obtained is the multi-carrier signal of domain digital signal.
As shown in Figure 8, when the multi-carrier signal after the mixing was intermediate-freuqncy signal, described multi-carrier signal processing module comprised an A/D converter and multi-carrier signal separation module.Described multi-carrier signal separation module comprises the multi-path digital band pass filter 1 corresponding with the carrier number N of multi-carrier signal, digital band-pass filter 2 ... digital band-pass filter N.Described A/D converter carries out mould/number conversion to intermediate-freuqncy signal earlier, obtains digital signal, by each band pass filter digital signal is separated again, obtains each way word baseband signal 1, digital baseband signal 2 ... digital baseband signal N.
As shown in Figure 9, when the multi-carrier signal after the mixing was zero intermediate frequency signals, described multi-carrier signal processing module also can comprise an A/D converter and multi-carrier signal separation module.Described multi-carrier signal separation module comprises multichannel frequency spectrum shift module 1, the frequency spectrum shift module 2 corresponding with the carrier number N of multi-carrier signal ... frequency spectrum shift module N and corresponding multi-path digital low pass filter 1, wave digital lowpass filter 2 ... wave digital lowpass filter N.Described zero intermediate frequency signals is carried out mould/number conversion through A/D converter earlier, obtains digital signal, carries out frequency spectrum shift by each road frequency spectrum shift module again.The unit impulse response signal that described each frequency spectrum shift module utilization has a corresponding frequencies skew multiplies each other with corresponding zero intermediate frequency signals, thus the moving of realization carrier wave.Afterwards, carry out multi-carrier signal by each road low pass filter of correspondence and separate, thereby obtain each way characters/numerals baseband signal 1, digital baseband signal 2 ... digital baseband signal N.
The joint-detection module is used for each way word baseband signal of multi-carrier signal processing module output is carried out joint-detection, obtains user data information.
As shown in figure 10, described joint-detection module can be digital baseband signal 1, the digital baseband signal 2 of several and multi-carrier signal processing module output ... the corresponding combined detector 1 of digital baseband signal N, combined detector 2 ... combined detector N.Described each road combined detector carries out joint-detection to the corresponding digital baseband signal respectively, obtains user data information, the data sending order of gained user data information according to transmitting terminal is made up successively again, constitutes the information sequence of a serial.
As shown in figure 11, described joint-detection module also can be made of a parallel/serial transducer and a combined detector series connection.Described parallel/serial transducer receives the time sequencing of multi-path digital baseband signal according to it, and the multi-path digital baseband signal is converted to the single channel digital baseband signal.Described combined detector carries out joint-detection to the single channel digital baseband signal of above-mentioned parallel/serial transducer output, obtains user data information.
The decoding output module is used for the user data information of associating detection module output is decoded, exported.
Among the present invention, at first the multi-carrier signal that antenna end is received separates, obtain the multi-path digital baseband signal of single carrier, respectively the multi-path digital baseband signal is carried out joint-detection again, and according to time sequencing output user data information, at last to the output of decoding of these user data informations, thereby realized utilizing the multi-carrier signal system to finish transfer of data fast and accurately.
The present invention also provides a kind of multicarrier joint-detection method of reseptance, and as shown in Figure 2, its step comprises:
Step 101 receives multi-carrier signal, and carries out mixing to the received signal.
In this step, behind the multi-carrier signal of mobile communication system by the antenna end reception, multi-carrier signal is carried out Frequency mixing processing, can obtain the multicarrier intermediate-freuqncy signal through mixing, perhaps the multicarrier zero intermediate frequency signals.
Step 102 is separated the multi-carrier signal after the mixing and is converted to the multi-path digital baseband signal.
For multicarrier intermediate-freuqncy signal or the zero intermediate frequency signals after the mixing, can carry out mould/number conversion earlier, obtain digital signal, again this digital signal is separated, to obtain the multi-path digital baseband signal; Also can separate earlier, obtain the MF Multi-Channel Per Carrier signal, again these single-carrier signal be carried out mould/number conversion, to obtain the multi-path digital baseband signal.
Step 103 is carried out joint-detection to the multi-path digital baseband signal, and with the decoding of the data message after joint-detection output.
In this step, when the multi-path digital baseband signal is carried out joint-detection, both can adopt the multichannel combined detector that each way word baseband signal is carried out joint-detection respectively, user data information after will detecting again makes up successively according to the data sending order of transmitting terminal, constitutes the information sequence of a serial.The time sequencing of the data-signal that also can be earlier sends according to transmitting terminal is carried out parallel/serial conversion to the multi-path digital baseband signal, be about to the multi-path digital baseband signal and synthesize the single channel digital baseband signal, by a combined detector this way word baseband signal is carried out joint-detection again, obtain user data information.
The data message that above-mentioned joint-detection obtains is finally exported through decoder decode.
Although embodiment of the present invention are open as above, but it is not restricted to listed utilization in specification and the execution mode, it can be applied to various suitable the field of the invention fully, for those skilled in the art, can easily realize other modification, therefore under the universal that does not deviate from claim and equivalency range and limited, the legend that the present invention is not limited to specific details and illustrates here and describe.
Claims (14)
1. multicarrier joint-detection receiving system is characterized in that described device comprises:
The multi-carrier signal receiver module is used for receiving the multi-carrier signal of multicarrier system;
The Frequency mixing processing module, the multi-carrier signal that is used for the multi-carrier signal receiver module is received carries out mixing;
The multi-carrier signal processing module is used for the multi-carrier signal after the mixing of Frequency mixing processing module being separated and being converted to the multi-path digital baseband signal;
The joint-detection module is used for each way word baseband signal of multi-carrier signal processing module output is carried out joint-detection, obtains user data information;
The decoding output module is used for the user data information of associating detection module output is decoded and exported.
2. multicarrier joint-detection receiving system as claimed in claim 1, it is characterized in that, described multi-carrier signal processing module comprises multi-carrier signal separation module and multichannel mould/number conversion module, described multi-carrier signal separation module comprises the multichannel band pass filter corresponding with the carrier number of multi-carrier signal, and described band pass filter is used for that intermediate-freuqncy signal is carried out the filtering separation and obtains each road single-carrier signal; Described each road A/D converter is connected in the output of corresponding band pass filter, and described mould/number conversion module is used for each road single-carrier signal is carried out mould/number conversion, obtains each corresponding way word baseband signal.
3. multicarrier joint-detection receiving system as claimed in claim 1, it is characterized in that, described multi-carrier signal processing module comprises an A/D converter and the multi-carrier signal separation module that is connected with its output, this multi-carrier signal separation module comprises the multi-path digital band pass filter corresponding with the carrier number of multi-carrier signal, described A/D converter is used for intermediate-freuqncy signal is converted to digital signal, and described each way word band pass filter is used for that above-mentioned digital signal is carried out the filtering separation and obtains each way word baseband signal.
4. multicarrier joint-detection receiving system as claimed in claim 1, it is characterized in that, described multi-carrier signal processing module comprises multi-carrier signal separation module and multichannel mould/number conversion module, described multi-carrier signal separation module comprises multichannel frequency spectrum shift module corresponding with the carrier number of multi-carrier signal and corresponding multichannel low pass filter, described frequency spectrum shift module is used for zero intermediate frequency signals is carried out frequency spectrum shift, described low pass filter is used for that zero intermediate frequency signals is carried out the filtering separation and obtains each road single-carrier signal, described each road mould/number conversion module is used for above-mentioned each road single-carrier signal is carried out mould/number conversion, obtains each corresponding way word baseband signal.
5. multicarrier joint-detection receiving system as claimed in claim 1, it is characterized in that, described multi-carrier signal processing module comprises an A/D converter and the multi-carrier signal separation module that is connected with its output, this multi-carrier signal separation module comprises multichannel frequency spectrum shift module corresponding with the carrier number of multi-carrier signal and corresponding multi-path digital low pass filter, described A/D converter is used for zero intermediate frequency signals is converted to digital signal, described frequency spectrum shift module is used for zero intermediate frequency signals is carried out frequency spectrum shift, and described wave digital lowpass filter is used for that zero intermediate frequency signals is carried out filtering and separates the digital baseband signal that obtains correspondence.
6. as claim 4 or 5 described multicarrier joint-detection receiving systems, it is characterized in that the unit impulse response signal that the utilization of described frequency spectrum shift module has a corresponding frequencies skew multiplies each other with corresponding zero intermediate frequency signals, thereby finishes moving of carrier wave.
7. multicarrier joint-detection receiving system as claimed in claim 1, it is characterized in that, described joint-detection module comprises the multichannel combined detector corresponding with the carrier number of multi-carrier signal, described each road combined detector carries out joint-detection to the corresponding digital baseband signal respectively, obtain user data information, again the data sending order of gained user data information according to transmitting terminal made up successively, constitute the information sequence of a serial.
8. multicarrier joint-detection receiving system as claimed in claim 1 is characterized in that described parallel/serial transducer receives the time sequencing of multi-path digital baseband signal according to it, and the multi-path digital baseband signal is converted to the single channel digital baseband signal; Described combined detector carries out joint-detection to the single channel digital baseband signal of above-mentioned parallel/serial transducer output, obtains user data information.
9. the method that the multicarrier joint-detection receives is characterized in that, comprises the steps:
Step 1 receives multi-carrier signal, and carries out mixing to the received signal;
Step 2 is separated the multi-carrier signal after the mixing and is converted to the multi-path digital baseband signal;
Step 3 is carried out joint-detection to the multi-path digital baseband signal, and with the decoding of the data message after joint-detection output.
10. the method that multicarrier joint-detection as claimed in claim 9 receives is characterized in that, in the described step 1, and output multicarrier intermediate-freuqncy signal, perhaps multicarrier zero intermediate frequency signals after the mixing.
11. the method that multicarrier joint-detection as claimed in claim 9 receives is characterized in that, in the described step 2, signal after the mixing is carried out mould/number conversion obtain digital signal, this digital signal is separated, to obtain the multi-path digital baseband signal again.
12. the method that multicarrier joint-detection as claimed in claim 9 receives, it is characterized in that, in the described step 2, signal after the mixing is separated acquisition MF Multi-Channel Per Carrier signal, again above-mentioned MF Multi-Channel Per Carrier signal is carried out mould/number conversion, to obtain the multi-path digital baseband signal.
13. the method that multicarrier joint-detection as claimed in claim 9 receives, it is characterized in that, in the described step 3, each way word baseband signal is carried out joint-detection respectively, user data information after will detecting again makes up successively according to the data sending order of transmitting terminal, constitutes the information sequence of a serial.
14. the method that multicarrier joint-detection as claimed in claim 9 receives, it is characterized in that, in the described step 3, the time sequencing of the data-signal that sends according to transmitting terminal with the multi-path digital baseband signal through the parallel/serial single channel digital baseband signal that is converted to, by a combined detector this single channel digital baseband signal is carried out joint-detection again, obtain user data information.
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| CNA2006101146241A CN1960554A (en) | 2006-11-17 | 2006-11-17 | Device and method capable of detecting and receiving multicarrier jointly |
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| CNA2006101146241A CN1960554A (en) | 2006-11-17 | 2006-11-17 | Device and method capable of detecting and receiving multicarrier jointly |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010088809A1 (en) * | 2009-02-04 | 2010-08-12 | 北京天碁科技有限公司 | A multi-carrier separation method and a multi-carrier separation apparatus |
| CN101917361A (en) * | 2010-06-12 | 2010-12-15 | 深圳国人通信有限公司 | Repeater carrier frequency setting method and system and repeater |
| CN102223223A (en) * | 2011-06-27 | 2011-10-19 | 中兴通讯股份有限公司 | Method and device for receiving multi-carrier signal |
| CN103236996A (en) * | 2013-02-25 | 2013-08-07 | 深圳创维数字技术股份有限公 | Signal processing method and related device |
| CN111342854A (en) * | 2020-03-06 | 2020-06-26 | 上海航天测控通信研究所 | Multi-point frequency signal receiving and processing device |
| CN114567353A (en) * | 2022-02-23 | 2022-05-31 | 中国电子科技集团公司第十研究所 | Low-cost digital array antenna receiving system and signal receiving method |
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2006
- 2006-11-17 CN CNA2006101146241A patent/CN1960554A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010088809A1 (en) * | 2009-02-04 | 2010-08-12 | 北京天碁科技有限公司 | A multi-carrier separation method and a multi-carrier separation apparatus |
| CN101917361A (en) * | 2010-06-12 | 2010-12-15 | 深圳国人通信有限公司 | Repeater carrier frequency setting method and system and repeater |
| CN101917361B (en) * | 2010-06-12 | 2016-09-07 | 深圳国人通信有限公司 | Method, system and the repeater of a kind of carrier frequency that repeater is set |
| CN102223223A (en) * | 2011-06-27 | 2011-10-19 | 中兴通讯股份有限公司 | Method and device for receiving multi-carrier signal |
| WO2013000317A1 (en) * | 2011-06-27 | 2013-01-03 | 中兴通讯股份有限公司 | Multicarrier signal reception method and device |
| CN103236996A (en) * | 2013-02-25 | 2013-08-07 | 深圳创维数字技术股份有限公 | Signal processing method and related device |
| CN111342854A (en) * | 2020-03-06 | 2020-06-26 | 上海航天测控通信研究所 | Multi-point frequency signal receiving and processing device |
| CN114567353A (en) * | 2022-02-23 | 2022-05-31 | 中国电子科技集团公司第十研究所 | Low-cost digital array antenna receiving system and signal receiving method |
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