CN106656259A - Mixed multipath signal receiving method and system in fading environment - Google Patents
Mixed multipath signal receiving method and system in fading environment Download PDFInfo
- Publication number
- CN106656259A CN106656259A CN201610828986.0A CN201610828986A CN106656259A CN 106656259 A CN106656259 A CN 106656259A CN 201610828986 A CN201610828986 A CN 201610828986A CN 106656259 A CN106656259 A CN 106656259A
- Authority
- CN
- China
- Prior art keywords
- sequence
- frequency domain
- multipath
- ray
- domain response
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
- H04B17/3911—Fading models or fading generators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0848—Joint weighting
- H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
Abstract
An embodiment of the invention provides a mixed multipath signal receiving method and system in fading environment. The method comprises the following steps: an MAP algorithm-based Turbo is used for decoding and obtaining frequency domain response of a single path received signal, and an operation method for frequency domain response in mixed multipath conditions is built; signals received via a Rake receiving machine and transmitted in a preset diversity transmitting mode are subjected to a maximal ratio combining operation, an optimal input signal can be obtained and used as an input signal for the operation method for frequency domain response in the mixed multipath conditions, and an output signal can be obtained via operation based on the operation method for frequency domain response in the mixed multipath conditions. Error rates of a system can be effectively reduced, system performance can be improved, system capacity can be further improved, and quality of service QoS provided for users can be ensured effectively.
Description
Technical field
The present invention relates to mix multipath signal reception method under communication technical field, more particularly to a kind of fading environment and be
System.
Background technology
In mobile communications, the factor of various environment will be taken into account, especially Doppler frequency shift and Multipath Transmission
Environment, signal is transmitted under multipath fading environments, it should compensated accordingly or using anti-fading technology in receiving terminal
Improved.It can be seen that, when Technology of Anti Multipath Fading and transmitting power control is studied, it is necessary to using corresponding in each path
Coding strategy, and the joint receiving algorithm of mulitpath is taken, just can ensure that the service quality QoS of user.With regard to multipath ring
As can be seen that for the signal fadeout problem in multipath fading environments in the present Research of transmitting power control in border, typically
Individually go to account for information source, the encoding and decoding of channel and time, the diversity transmission in space and reception, it is difficult to form one effectively
Restrain measurement.Due to the receiver using which kind of complete anti-multipath fading for the service quality QoS of mobile subscriber be to
Close important.Therefore, effective anti-multipath fading is realized in mobile communications, and joint considers that encoding and decoding and diversity reception are one
Individual effective solution.
The content of the invention
The embodiment provides mixing multipath signal reception method and system under a kind of fading environment.The application is carried
For following scheme：
Turbo decodings based on MAP algorithms obtain the frequency domain response that single footpath receives signal, the frequency domain set up under mixing multipath
The operation method of response；
The signal according to default diversity transmission mode received to Rake receivers carries out Maximal ratio combiner process and obtains
Take optimal input signal；
The input signal of the frequency domain response operation method under using the optimal input signal as the mixing multipath, passes through
The computing of the operation method of the frequency domain response under the mixing multipath obtains output signal.
Said method of the invention, the default diversity transmission mode, including：
Systematic code is transmitted by first antenna, parity code is passed through into the second antenna transmission；And/or；
At interval of the First ray group and the First ray of parity code of a sequence after the First ray of systematic code is started
The first queue that is mutually staggered to form successively for starting the second sequence group at interval of a sequence is transmitted by first antenna, its
In, the first queue begins through the first antenna transmission by the First ray of systematic code,
At interval of the 3rd sequence group and the second sequence of parity code of a sequence after second sequence of systematic code is started
Start the 4th sequence group at interval of a sequence is mutually staggered to form successively second queue by the second antenna transmission, its
In, the second queue begins through second antenna transmission by the second sequence of systematic code, and/or；
At interval of the First ray group and the second sequence of parity code of a sequence after the First ray of systematic code is started
The 3rd queue that is mutually staggered to form successively for starting the 4th sequence group at interval of a sequence is transmitted by first antenna, its
In, the 3rd queue begins through the first antenna transmission by the First ray of systematic code,
At interval of the second sequence group and the second sequence of systematic code of a sequence after the First ray of parity code is started
Start the 3rd sequence group at interval of a sequence is mutually staggered to form successively the 4th queue by the second antenna transmission, its
In, the 4th queue begins through second antenna transmission by the First ray of parity code.
Said method of the invention, obtains the optimal input signal, including：
It is minimum of a value by the deviation adjusting of the power of first antenna and the power of the second antenna.
Said method of the invention, the Turbo decodings based on MAP algorithms obtain the frequency domain that single footpath receives signal
Response, the operation method of the frequency domain response set up under mixing multipath, including：
The frequency domain response of signal is received based on single footpath, the frequency domain response sequence under L paths is obtained respectively, wherein, L
It is the integer more than 1；
In setting L paths, each path attenuation is independent of each other, the operation method of the frequency domain response set up under mixing multipath.
According to the another aspect of the application, mixing multipath signal reception system under a kind of fading environment is also provided, including：
Set up module：It is used for the decodings of the Turbo based on MAP algorithms and obtains the frequency domain response that single footpath receives signal, sets up
The operation method of the frequency domain response under mixing multipath；
Acquisition module：Its signal according to default diversity transmission mode for being used to receive Rake receivers carries out maximum
Ratio merging treatment obtains optimal input signal；
Output module：The input of the frequency domain response operation method under using the optimal input signal as the mixing multipath
Signal, by the computing of the operation method of the frequency domain response under the mixing multipath output signal is obtained.
According to the another aspect of the application, the acquisition module specifically for：
Systematic code is transmitted by first antenna, parity code is passed through into the second antenna transmission；And/or；
At interval of the First ray group and the First ray of parity code of a sequence after the First ray of systematic code is started
The first queue that is mutually staggered to form successively for starting the second sequence group at interval of a sequence is transmitted by first antenna, its
In, the first queue begins through the first antenna transmission by the First ray of systematic code,
At interval of the 3rd sequence group and the second sequence of parity code of a sequence after second sequence of systematic code is started
Start the 4th sequence group at interval of a sequence is mutually staggered to form successively second queue by the second antenna transmission, its
In, the second queue begins through second antenna transmission by the second sequence of systematic code, and/or；
At interval of the First ray group and the second sequence of parity code of a sequence after the First ray of systematic code is started
The 3rd queue that is mutually staggered to form successively for starting the 4th sequence group at interval of a sequence is transmitted by first antenna, its
In, the 3rd queue begins through the first antenna transmission by the First ray of systematic code,
At interval of the 4th sequence group and the second sequence of systematic code of a sequence after the First ray of parity code is started
Start the 3rd sequence group at interval of a sequence is mutually staggered to form successively the 4th queue by the second antenna transmission, its
In, the 4th queue begins through second antenna transmission by the First ray of parity code.
According to the another aspect of the application, the acquisition module, also particularly useful for：
It is minimum of a value by the deviation adjusting of the power of first antenna and the power of the second antenna.
According to the another aspect of the application, it is described set up module specifically for：
The frequency domain response of signal is received based on single footpath, the frequency domain response sequence under L paths is obtained respectively, wherein, L
It is the integer more than 1；
In setting L paths, each path attenuation is independent of each other, the operation method of the frequency domain response set up under mixing multipath.
The technical scheme provided by embodiments of the invention described above can be seen that Turbo of the embodiment of the present invention based on MAP algorithms and decode
Obtain the frequency domain response that single footpath receives signal, the operation method of the frequency domain response set up under mixing multipath；To Rake receivers institute
The signal according to default diversity transmission mode for receiving carries out Maximal ratio combiner and processes acquisition optimal input signal；With it is described most
Excellent input signal is mixed under multipath as the input signal of the frequency domain response operation method under the mixing multipath by described
The computing of the operation method of frequency domain response obtains output signal；Error rate of system can be effectively reduced, systematic function is improved, so as to
The capacity of system is further improved, the service quality QoS of user is effectively ensured.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to use needed for embodiment description
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill of field, without having to pay creative labor, can be obtaining other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the handling process for mixing multipath signal reception method under a kind of fading environment that the embodiment of the present invention one is provided
Figure；
Fig. 2 is the first transmission means of first embodiment of the invention；
Fig. 3 is the second transmission means of first embodiment of the invention；
Fig. 4 is the 3rd transmission means of first embodiment of the invention；
Fig. 5 is the system module for mixing multipath signal reception system under a kind of fading environment that the embodiment of the present invention one is provided
Figure.
Specific embodiment
For ease of the understanding to the embodiment of the present invention, do by taking several specific embodiments as an example further below in conjunction with accompanying drawing
Explanation, and each embodiment does not constitute the restriction to the embodiment of the present invention.
Embodiment one
This embodiment offers under a kind of fading environment mix multipath signal reception method handling process as shown in figure 1,
Including following process step：
Step 11, the Turbo decodings based on MAP algorithms obtain the frequency domain response that single footpath receives signal, set up mixing multipath
Under frequency domain response operation method；
Those skilled in the art will be understood that the MAP algorithms involved by the application are a kind of broad concepts, refer mainly to be suitable for
A kind of algorithm of decoding is decoded in turbo, including standard MAP algorithm, Log-MAP algorithms, MAX-Log-MAP algorithms, amendment
MAP algorithms etc. are arbitrarily.
Specifically, the Turbo decodings based on MAP algorithms obtain the frequency domain response that single footpath receives signal, set up mixing
The operation method of the frequency domain response under multipath, including：
The frequency domain response of signal is received based on single footpath, the frequency domain response sequence under L paths is obtained respectively, wherein, L
It is the integer more than 1；
In setting L paths, each path attenuation is independent of each other, the operation method of the frequency domain response set up under mixing multipath.
Further, the Turbo decodings based on MAP algorithms obtain the frequency domain response that single footpath receives signal：
The lowpass response of signal is received based on single footpath, the frequency domain response sequence under L paths is obtained respectively：
In setting L paths, each path attenuation is independent of each other, and the frequency domain response sequence is deformed：
Specific to the fading channel of L statistical iteration, mixing the signal for receiving can be write as：
Step 12, the signal according to default diversity transmission mode received to Rake receivers carry out Maximal ratio combiner
Process and obtain optimal input signal；
Specifically, the default diversity transmission mode, including：
First transmission means and/or the second transmission means and/or the 3rd transmission means；In the present embodiment, systematic code u sequences
Row represent that parity code is represented with p sequences.Described systematic code is the coding of transmission information, and described parity code is check bit
Coding.
Wherein, the first transmission means：Systematic code is transmitted by first antenna, parity code is passed through into the second antenna transmission；
Specifically, as shown in Figure 2；
Second transmission means：At interval of the First ray group and odd even of a sequence after the First ray of systematic code is started
The First ray of code starts the first queue that is mutually staggered to form successively of the second sequence group at interval of a sequence and passes through first
Antenna transmission, wherein, the first queue begins through the first antenna transmission by the First ray of systematic code,
At interval of the 3rd sequence group and the second sequence of parity code of a sequence after second sequence of systematic code is started
Start the 4th sequence group at interval of a sequence is mutually staggered to form successively second queue by the second antenna transmission, its
In, the second queue begins through second antenna transmission by the second sequence of systematic code, specifically as shown in Figure 3；
3rd transmission means：At interval of the First ray group and odd even of a sequence after the First ray of systematic code is started
Second sequence of code starts the 3rd queue that is mutually staggered to form successively of the 4th sequence group at interval of a sequence and passes through first
Antenna transmission, wherein, the 3rd queue begins through the first antenna transmission by the First ray of systematic code,
At interval of the 4th sequence group and the second sequence of systematic code of a sequence after the First ray of parity code is started
Start the 3rd sequence group at interval of a sequence is mutually staggered to form successively the 4th queue by the second antenna transmission, its
In, the 4th queue begins through second antenna transmission by the First ray of parity code, specifically as shown in Figure 4；
For the signal of three of the above transmission means carries out Maximal ratio combiner process, it is preferable that in receiving terminal by multiple
Diversity branch, after phase adjustment, according to appropriate gain coefficient, homophase is added, is re-fed into detector and is detected.Connecing
Each incoherent diversity branch is received through phasing, and detector is sent into after being added again by appropriate variable gain weighting
The relevant detection of row.The signal width of the variable gain weight coefficient of i-th branch road as the road of the diversity can be set when doing
The ratio of degree and noise power.
Preferably, it is minimum of a value by the deviation adjusting of the power of first antenna and the power of the second antenna, can be preferably
Obtain optimal input signal.
Step 13, using the optimal input signal as it is described mixing multipath under frequency domain response operation method input letter
Number, output signal is obtained by the computing of the operation method of the frequency domain response under the mixing multipath.
Embodiment two
This embodiment offers the system module figure such as Fig. 5 institutes for mixing multipath signal reception system under a kind of fading environment
Show, including：
Set up module 51：It is used for the decodings of the Turbo based on MAP algorithms and obtains the frequency domain response that single footpath receives signal, builds
The operation method of the frequency domain response under vertical mixing multipath；
It is described set up module 51 specifically for：
The frequency domain response of signal is received based on single footpath, the frequency domain response sequence under L paths is obtained respectively, wherein, L
It is the integer more than 1；
In setting L paths, each path attenuation is independent of each other, the operation method of the frequency domain response set up under mixing multipath.
Specifically, the Turbo decodings based on MAP algorithms obtain the frequency domain response that single footpath receives signal, set up mixing
The operation method of the frequency domain response under multipath, including：
The frequency domain response of signal is received based on single footpath, the frequency domain response sequence under L paths is obtained respectively, wherein, L
It is the integer more than 1；
In setting L paths, each path attenuation is independent of each other, the operation method of the frequency domain response set up under mixing multipath.
Further, the Turbo decodings based on MAP algorithms obtain the frequency domain response that single footpath receives signal：
The lowpass response of signal is received based on single footpath, the frequency domain response sequence under L paths is obtained respectively：
In setting L paths, each path attenuation is independent of each other, and the frequency domain response sequence is deformed：
Specific to the fading channel of L statistical iteration, mixing the signal for receiving can be write as：
Acquisition module 52：Its signal according to default diversity transmission mode for being used to receive Rake receivers is carried out most
Big ratio merging treatment obtains optimal input signal；
Output module 53：The defeated of frequency domain response operation method under multipath is mixed as described using the optimal input signal
Enter signal, output signal is obtained by the computing of the operation method of the frequency domain response under the mixing multipath.
The acquisition module 52 specifically for：
Systematic code is transmitted by first antenna, parity code is passed through into the second antenna transmission；And/or；
At interval of the First ray group and the First ray of parity code of a sequence after the First ray of systematic code is started
The first queue that is mutually staggered to form successively for starting the second sequence group at interval of a sequence is transmitted by first antenna, its
In, the first queue begins through the first antenna transmission by the First ray of systematic code,
At interval of the 3rd sequence group and the second sequence of parity code of a sequence after second sequence of systematic code is started
Start the 4th sequence group at interval of a sequence is mutually staggered to form successively second queue by the second antenna transmission, its
In, the second queue begins through second antenna transmission by the second sequence of systematic code, and/or；
At interval of the First ray group and the second sequence of parity code of a sequence after the First ray of systematic code is started
The 3rd queue that is mutually staggered to form successively for starting the 4th sequence group at interval of a sequence is transmitted by first antenna, its
In, the 3rd queue begins through the first antenna transmission by the First ray of systematic code,
At interval of the 4th sequence group and the second sequence of systematic code of a sequence after the First ray of parity code is started
Start the 3rd sequence group at interval of a sequence is mutually staggered to form successively the 4th queue by the second antenna transmission, its
In, the 4th queue begins through second antenna transmission by the First ray of parity code.
The acquisition module 52, also particularly useful for：
It is minimum of a value by the deviation adjusting of the power of first antenna and the power of the second antenna.
Carried out mixing the detailed process of multipath signal reception and aforementioned side under fading environment with the system of the embodiment of the present invention
Method embodiment is similar to, and here is omitted.In sum, Turbo decoding of the embodiment of the present invention based on MAP algorithms obtains single footpath
The frequency domain response of signal is received, the operation method of the frequency domain response set up under mixing multipath；To pressing that Rake receivers are received
Maximal ratio combiner process acquisition optimal input signal is carried out according to the signal of default diversity transmission mode；With the optimum input letter
Number as it is described mixing multipath under frequency domain response operation method input signal, by it is described mixing multipath under frequency domain response
Operation method computing obtain output signal；Error rate of system can be effectively reduced, systematic function is improved, so as to further carry
The capacity of high system, is effectively ensured the service quality QoS of user.
One of ordinary skill in the art will appreciate that：Accompanying drawing is the schematic diagram of one embodiment, module in accompanying drawing or
Flow process is not necessarily implemented necessary to the present invention.
As seen through the above description of the embodiments, those skilled in the art can be understood that the present invention can
Realize by the mode of software plus required general hardware platform.Based on such understanding, technical scheme essence
On prior art is contributed part in other words can be embodied in the form of software product, the computer software product
Can be stored in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are used so that a computer equipment
(can be personal computer, server, either network equipment etc.) performs some of each embodiment of the invention or embodiment
Method described in part.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.Especially for device or
For system embodiment, because it is substantially similar to embodiment of the method, so describing fairly simple, related part is referring to method
The part explanation of embodiment.Apparatus and system embodiment described above is only schematic, wherein the conduct
Separating component explanation unit can be or may not be it is physically separate, can be as the part that unit shows or
Person may not be physical location, you can be located at a place, or can also be distributed on multiple NEs.Can be with root
The factually purpose for needing to select some or all of module therein to realize this embodiment scheme on border.Ordinary skill
Personnel are not in the case where creative work is paid, you can to understand and implement.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
All should be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (8)
1. multipath signal reception method is mixed under a kind of fading environment, it is characterised in that included：
Turbo decodings based on MAP algorithms obtain the frequency domain response that single footpath receives signal, the frequency domain response set up under mixing multipath
Operation method；
The signal according to default diversity transmission mode received to Rake receivers carries out Maximal ratio combiner and processes acquisition most
Excellent input signal；
The input signal of the frequency domain response operation method under using the optimal input signal as the mixing multipath, by described
The computing of the operation method of the frequency domain response under mixing multipath obtains output signal.
2. multipath signal reception method is mixed under a kind of fading environment according to claim 1, it is characterised in that described pre-
If diversity transmission mode, including：
Systematic code is transmitted by first antenna, parity code is passed through into the second antenna transmission；And/or；
Start at interval of the First ray group of a sequence and the First ray of parity code after the First ray of systematic code is started
Transmitted by first antenna at interval of the first queue that is mutually staggered to form successively of the second sequence group of a sequence, wherein, institute
State first queue and the first antenna transmission begun through by the First ray of systematic code,
Start at interval of the 3rd sequence group of a sequence and the second sequence of parity code after second sequence of systematic code is started
Pass through the second antenna transmission at interval of the second queue that is mutually staggered to form successively of the 4th sequence group of a sequence, wherein, institute
State second queue and second antenna transmission is begun through by the second sequence of systematic code, and/or；
Start at interval of the First ray group of a sequence and the second sequence of parity code after the First ray of systematic code is started
The 3rd queue that is mutually staggered to form successively at interval of the 4th sequence group of a sequence is transmitted by first antenna, wherein, institute
State the 3rd queue and the first antenna transmission begun through by the First ray of systematic code,
Start at interval of the second sequence group of a sequence and the second sequence of systematic code after the First ray of parity code is started
The 4th queue that is mutually staggered to form successively at interval of the 3rd sequence group of a sequence passes through the second antenna transmission, wherein, institute
State the 4th queue and second antenna transmission is begun through by the First ray of parity code.
3. multipath signal reception method is mixed under a kind of fading environment according to claim 2, it is characterised in that obtain institute
Optimal input signal is stated, including：
It is minimum of a value by the deviation adjusting of the power of first antenna and the power of the second antenna.
4. multipath signal reception method is mixed under a kind of fading environment according to any one of claims 1 to 3, and its feature exists
In the Turbo decodings based on MAP algorithms obtain the frequency domain response that single footpath receives signal, the frequency domain set up under mixing multipath
The operation method of response, including：
The frequency domain response of signal is received based on single footpath, the frequency domain response sequence under L paths is obtained respectively, wherein, L is big
In 1 integer；
In setting L paths, each path attenuation is independent of each other, the operation method of the frequency domain response set up under mixing multipath.
5. multipath signal reception system is mixed under a kind of fading environment, it is characterised in that included：
Set up module：It is used for the decodings of the Turbo based on MAP algorithms and obtains the frequency domain response that single footpath receives signal, sets up mixing
The operation method of the frequency domain response under multipath；
Acquisition module：Its signal according to default diversity transmission mode for being used to receive Rake receivers carries out maximum ratio
Merging treatment obtains optimal input signal；
Output module：The input letter of the frequency domain response operation method under using the optimal input signal as the mixing multipath
Number, output signal is obtained by the computing of the operation method of the frequency domain response under the mixing multipath.
6. multipath signal reception system is mixed under a kind of fading environment according to claim 5, it is characterised in that described to obtain
Delivery block specifically for：
Systematic code is transmitted by first antenna, parity code is passed through into the second antenna transmission；And/or；
Start at interval of the First ray group of a sequence and the First ray of parity code after the First ray of systematic code is started
Transmitted by first antenna at interval of the first queue that is mutually staggered to form successively of the second sequence group of a sequence, wherein, institute
State first queue and the first antenna transmission begun through by the First ray of systematic code,
Start at interval of the 3rd sequence group of a sequence and the second sequence of parity code after second sequence of systematic code is started
Pass through the second antenna transmission at interval of the second queue that is mutually staggered to form successively of the 4th sequence group of a sequence, wherein, institute
State second queue and second antenna transmission is begun through by the second sequence of systematic code, and/or；
Start at interval of the First ray group of a sequence and the second sequence of parity code after the First ray of systematic code is started
The 3rd queue that is mutually staggered to form successively at interval of the 4th sequence group of a sequence is transmitted by first antenna, wherein, institute
State the 3rd queue and the first antenna transmission begun through by the First ray of systematic code,
Start at interval of the 4th sequence group of a sequence and the second sequence of systematic code after the First ray of parity code is started
The 4th queue that is mutually staggered to form successively at interval of the 3rd sequence group of a sequence passes through the second antenna transmission, wherein, institute
State the 4th queue and second antenna transmission is begun through by the First ray of parity code.
7. multipath signal reception system is mixed under a kind of fading environment according to claim 6, it is characterised in that described to obtain
Delivery block, also particularly useful for：
It is minimum of a value by the deviation adjusting of the power of first antenna and the power of the second antenna.
8. multipath signal reception system is mixed under a kind of fading environment according to any one of claim 5 to 7, and its feature exists
In, it is described set up module specifically for：
The frequency domain response of signal is received based on single footpath, the frequency domain response sequence under L paths is obtained respectively, wherein, L is big
In 1 integer；
In setting L paths, each path attenuation is independent of each other, the operation method of the frequency domain response set up under mixing multipath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610828986.0A CN106656259A (en) | 2016-09-19 | 2016-09-19 | Mixed multipath signal receiving method and system in fading environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610828986.0A CN106656259A (en) | 2016-09-19 | 2016-09-19 | Mixed multipath signal receiving method and system in fading environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106656259A true CN106656259A (en) | 2017-05-10 |
Family
ID=58851944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610828986.0A Pending CN106656259A (en) | 2016-09-19 | 2016-09-19 | Mixed multipath signal receiving method and system in fading environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106656259A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040131109A1 (en) * | 2002-10-25 | 2004-07-08 | Gct Semiconductor, Inc. | Bidirectional turbo ISI canceller-based DSSS receiver for high-speed wireless LAN |
| US20060068714A1 (en) * | 2004-09-27 | 2006-03-30 | Naresh Sharma | Method and apparatus for generating a channel estimate using a non-pilot portion of a signal |
| CN101383791A (en) * | 2008-09-26 | 2009-03-11 | 中国科学技术大学 | Ultra wide band linear equalizing method based on single bit quantization sampling |
| CN102238726A (en) * | 2011-06-21 | 2011-11-09 | 北京理工大学 | Nonlinear least square TOA (Time of Arrival) estimation method used for LTE-A (Long Term Evolution-Advanced) |
-
2016
- 2016-09-19 CN CN201610828986.0A patent/CN106656259A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040131109A1 (en) * | 2002-10-25 | 2004-07-08 | Gct Semiconductor, Inc. | Bidirectional turbo ISI canceller-based DSSS receiver for high-speed wireless LAN |
| US20060068714A1 (en) * | 2004-09-27 | 2006-03-30 | Naresh Sharma | Method and apparatus for generating a channel estimate using a non-pilot portion of a signal |
| CN101383791A (en) * | 2008-09-26 | 2009-03-11 | 中国科学技术大学 | Ultra wide band linear equalizing method based on single bit quantization sampling |
| CN102238726A (en) * | 2011-06-21 | 2011-11-09 | 北京理工大学 | Nonlinear least square TOA (Time of Arrival) estimation method used for LTE-A (Long Term Evolution-Advanced) |
Non-Patent Citations (1)
| Title |
|---|
| 王金鹏: "移动通信系统中无线资源管理及其性能研究", 《中国博士学位论文全文数据库》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7116722B2 (en) | Wireless communication system using multi-element antenna having a space-time architecture | |
| CN101911528B (en) | wireless receiver with receive diversity | |
| EP1575203A1 (en) | Method for deciding signal detection order in mobile communication system | |
| US7782972B2 (en) | Apparatus and method for selecting antennas in MIMO multi-carrier system | |
| US20030076787A1 (en) | Data transfer method | |
| EP1158695A2 (en) | Space multiplex radio communication method and apparatus | |
| KR20110014644A (en) | Spread-spectrum coding of data blocks using repetition | |
| EP1587223A1 (en) | Detection process in a V-BLAST system | |
| US20120200459A1 (en) | Beam forming method and multiple antenna system using the same | |
| US7342970B2 (en) | Array processing using an aggregate channel matrix generated using a block code structure | |
| CN106464337B (en) | Method, device and equipment for transmitting data | |
| CN100471084C (en) | Data communication and radio system | |
| CN101459495A (en) | Multi-user MIMO communication system, method and apparatus for transmitting signal | |
| US20060034399A1 (en) | Decoding apparatus and communication system receiver | |
| US20060093056A1 (en) | Signal reception in mobile communication network | |
| Ng et al. | Minimum expected distortion in Gaussian layered broadcast coding with successive refinement | |
| JP6685462B2 (en) | Receiver and wireless communication system | |
| KR20020020970A (en) | Receiving device and transmitting device | |
| CN101483467B (en) | Method for MIMO multiple access channel throughput maximization | |
| US7684525B2 (en) | Method and receiver for reception of a composite signal | |
| CN106656259A (en) | Mixed multipath signal receiving method and system in fading environment | |
| US7251469B2 (en) | CDMA transmitting apparatus and CDMA transmitting method | |
| CN1294805A (en) | Method for digital equalisation, and radio communication receiver implementing said method | |
| US7738843B2 (en) | Apparatus and method for transmitting data in multi-input multi-output system | |
| KR102631277B1 (en) | Systems and methods for de-correlating coded signals in dual port transmissions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |
|
| WD01 | Invention patent application deemed withdrawn after publication |