CN103607229A - Reconfigurable power synthesizer-based multi-antenna selective-combination diversity method - Google Patents
Reconfigurable power synthesizer-based multi-antenna selective-combination diversity method Download PDFInfo
- Publication number
- CN103607229A CN103607229A CN201310489418.9A CN201310489418A CN103607229A CN 103607229 A CN103607229 A CN 103607229A CN 201310489418 A CN201310489418 A CN 201310489418A CN 103607229 A CN103607229 A CN 103607229A
- Authority
- CN
- China
- Prior art keywords
- antenna
- power combiner
- signal
- restructural power
- restructural
- 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.)
- Granted
Links
Images
Abstract
The invention provides a reconfigurable power synthesizer-based multi-antenna selective-combination diversity method. The reconfigurable power synthesizer-based multi-antenna selective-combination diversity method comprises the following steps that: L independent antennas used for receiving signals are provided, wherein the L> 1; each antenna is respectively connected with different radio frequency input ports of a reconfigurable power synthesizer through radio frequency cables; radio frequency signals received by each antenna are combined into one path of signals inside the reconfigurable power synthesizer according to different weight values; and the one path of signals are outputted from an output port of the reconfigurable power synthesizer. Compared with traditional selective-connection diversity, the diversity method can provide more selection channels, such that signals with better signal to noise ratio can be obtained. The reconfigurable power synthesizer-based multi-antenna selective-connection diversity method of the invention can realize more selection channels, improve signal to noise ratio and reduce error rate with original number of diversity antennas maintained.
Description
Technical field
The present invention relates to for a kind of new deversity scheme of wireless communication field, particularly, relate to a kind of multi-antenna selectivity based on restructural power combiner and merge deversity scheme.
Background technology
Diversity technique is a kind of technology that is used for compensate for channel decline, can just can significantly improve radio link performance with relatively cheap investment.It typically uses the reception antenna of two or more and realizes.It is the simplest diversity that selectivity merges, and it only need to use a receiver.
Traditional selectivity merges, and is to adopt switch to realize the selection of reception antenna at radio-frequency front-end.For L (L>1) reception antenna, owing to adopting radio-frequency (RF) switch, so can only select an independent antenna to receive at every turn.The quantity of receive path equals L.Traditional selectivity merges selects the passage of signal to noise ratio maximum from this L channel.This merging mode does not make full use of the signal of each diversity antenna, if the signal of different antennae can combine mutually, can obtain more receive path number, thereby may obtain better signal to noise ratio, reduces the error rate.
Summary of the invention
For the defect of above-mentioned existence of the prior art, the object of this invention is to provide a kind of multi-antenna selectivity based on restructural power combiner and merge deversity scheme, under identical channel condition, the error rate is starkly lower than traditional selectivity and merges.
For achieving the above object, the technology used in the present invention method is as follows:
A kind of multi-antenna selectivity based on restructural power combiner merges deversity scheme, comprise that L for receiving the stand-alone antenna of signal, L>1, described each antenna is connected respectively to the different rf inputs mouth of restructural power combiner by radio frequency cable, the radiofrequency signal that each antenna is received is combined into a road signal in restructural power combiner inside according to different weights, from restructural power combiner delivery outlet, exports.
Preferably, the weights of the reception signalling channel of described each antenna are 0 or 1.
Preferably, a described L stand-alone antenna provides 2
l-a kind of different weights combined situation.
Preferably, by detector to 2
lthe signal to noise ratio of the composite signal in-a kind of situation detects, and the corresponding weights of each radio frequency signal channels of the situation of the signal to noise ratio maximum of selection composite signal are final weights.
Preferably, the break-make in each radio-frequency channel of the final Weight selected of restructural power combiner internal condition, from the output of restructural power combiner output port, enters receiver by the signal of the synthesis path of selecting.
Multi-antenna selectivity based on restructural power combiner of the present invention merges deversity scheme, and this deversity scheme is at radio-frequency front-end, to adopt restructural power combiner to replace original radio-frequency (RF) switch to realize multi-antenna selectivity to merge diversity.Compare with traditional selectivity merging diversity, this deversity scheme can provide more selector channel, thereby obtains the signal of better signal to noise ratio.The present invention, keeping, on the basis of original diversity antenna quantity, realizing more channel selecting, improves signal to noise ratio, reduces the error rate.
Accompanying drawing explanation
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 is the system construction drawing of one embodiment of the invention;
Fig. 2 is the structure chart of restructural power combiner one embodiment of the present invention;
Fig. 3 is that embodiments of the invention merge with traditional selectivity the performance of comparing.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art further to understand the present invention, but not limit in any form the present invention.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
Refer to Fig. 1, the multi-antenna selectivity based on restructural power combiner merges deversity scheme and implements illustration.
4 stand-alone antennas are used for receiving signal, described each antenna is connected respectively to the different rf inputs mouth of restructural power combiner by radio frequency cable, the implementation method of restructural power combiner can be referring to people such as Y.Chung and R.Song the article " power path of two kinds of mode of operations: the Wilkinson power divider of two passages and the passage on an independent road (Power routing scheme with dual operating modes:two-way Wilkinson divider and one-way signal path at International Periodicals electronics wall bulletin (Electronics Letters), ISSN0013-5194, on January 22nd, 2004 " a restructural power combiner proposed.The structure of this restructural power combiner as shown in Figure 2, by two microstrip coupled lines and 6 radio-frequency (RF) switch, realizes restructural power combiner on traditional Wilkinson power combiner.When S1-S5 is all closed, realize port one and port 2 conductings simultaneously, corresponding to " 11 ".Work as S1, S2, S3, S5 disconnects, and S4 is closed, realizes port one conducting, and port 2 isolation, corresponding to " 10 ".Work as S1, S3, S4, S5 disconnects, and S2 is closed, realizes port 2 conductings, and port one isolation, corresponding to " 01 ".If realize 4 road restructural power combiners, can carry out the cascade of two-stage restructural power combiner, three two-way restructural power combiners are realized 4 road restructural power combiners.
The radiofrequency signal that each antenna is received is combined into a road signal in restructural power combiner inside according to different weights, the numbering of 4 antennas is respectively antenna 1, antenna 2, antenna 3 and antenna 4, be connected with input port 1, input port 2, input port 3 and the input port 4 use radio frequency electrical cables of restructural power combiner respectively, the weights combination of restructural power combiner is described as follows:
The output radiofrequency signal of the output port of restructural power combiner comes from the situation of an independent antenna: the weights of separate antenna 1 are designated as 1000, the weights of separate antenna 2 are designated as 0100, the weights of separate antenna 3 are designated as 0010, and the passage of separate antenna 4 is designated as 0001;
The output radiofrequency signal of the output port of restructural power combiner comes from two situations that antenna is synthetic: the synthetic weights of antenna 1 and antenna 2 are designated as 1100, the synthetic weights of antenna 1 and antenna 3 are designated as 1010, the synthetic weights of antenna 1 and antenna 4 are designated as 1001, the synthetic weights of antenna 2 and antenna 3 are designated as 0110, the synthetic weights of antenna 2 and antenna 4 are designated as 0101, and the synthetic weights of antenna 3 and antenna 4 are designated as 0011;
The output radiofrequency signal of the output port of restructural power combiner comes from three situations that antenna is synthetic: antenna 1, antenna 2 and the synthetic weights of antenna 3 are designated as 1110, antenna 1, antenna 2 and the synthetic weights of antenna 4 are designated as 1101, and antenna 2, antenna 3 and the synthetic weights of antenna 4 are designated as 0111;
The output radiofrequency signal of the output port of restructural power combiner comes from four situations that antenna is synthetic: antenna 1, antenna 2, antenna 3 and the synthetic weights of antenna 3 are designated as 1111.
So corresponding to 4 reception antennas, number of channels is 15, corresponding weights be combined as 15.
By detector, the signal to noise ratio of the composite signal in 15 kinds of situations is detected, the corresponding weights of each radio frequency signal channels of the situation of the signal to noise ratio maximum of selection composite signal are final weights.
Break-make in final each radio-frequency channel of Weight selected of restructural power combiner internal condition, from the output of restructural power combiner output port, enters receiver by the signal of the synthesis path of selecting.
The average signal-to-noise ratio that obtains of the emulation of the present embodiment and the graph of a relation of the error rate as shown in Figure 3.The present embodiment is to adopt BPSK modulation, and under smooth rayleigh fading channel model, each reception antenna is incoherent, and the probability of hypothesis transmission " 0 " and " 1 " is equal, and the number L of antenna is respectively 2,4,6, and simulation sample quantity is 108.The average signal-to-noise ratio when signal to noise ratio of abscissa represents an independent antenna reception.As can be seen from the figure, the multi-antenna selectivity based on restructural power combiner merges deversity scheme under identical channel condition, and the error rate is starkly lower than traditional selectivity and merges.
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (5)
1. the multi-antenna selectivity based on restructural power combiner merges deversity scheme, it is characterized in that: comprise that L for receiving the stand-alone antenna of signal, L>1, described each antenna is connected respectively to the different rf inputs mouth of restructural power combiner by radio frequency cable, the radiofrequency signal that each antenna is received is combined into a road signal in restructural power combiner inside according to different weights, from restructural power combiner delivery outlet, exports.
2. the multi-antenna selectivity based on restructural power combiner according to claim 1 merges deversity scheme, it is characterized in that: the weights of the reception signalling channel of described each antenna are 0 or 1.
3. the multi-antenna selectivity based on restructural power combiner according to claim 2 merges deversity scheme, it is characterized in that: a described L stand-alone antenna provides 2
l-a kind of different weights combined situation.
4. multi-antenna selectivity based on restructural power combiner according to claim 3 merges deversity scheme, it is characterized in that: by detector to 2
lthe signal to noise ratio of the composite signal under-a kind of different weights combined situation detects, and the corresponding weights of each radio frequency signal channels of the situation of the signal to noise ratio maximum of selection composite signal are final weights.
5. the multi-antenna selectivity based on restructural power combiner according to claim 4 merges deversity scheme, it is characterized in that: the break-make in each radio-frequency channel of the final Weight selected of restructural power combiner internal condition, the signal of the synthesis path of selecting, from the output of restructural power combiner output port, is entered to receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310489418.9A CN103607229B (en) | 2013-10-17 | 2013-10-17 | Multi-antenna selectivity based on restructural power combiner merges deversity scheme |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310489418.9A CN103607229B (en) | 2013-10-17 | 2013-10-17 | Multi-antenna selectivity based on restructural power combiner merges deversity scheme |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103607229A true CN103607229A (en) | 2014-02-26 |
| CN103607229B CN103607229B (en) | 2017-06-09 |
Family
ID=50125431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310489418.9A Active CN103607229B (en) | 2013-10-17 | 2013-10-17 | Multi-antenna selectivity based on restructural power combiner merges deversity scheme |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103607229B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787723A (en) * | 2019-01-04 | 2019-05-21 | 武汉邮电科学研究院有限公司 | A kind of detection method of the bit error rate, detection system and high order modulation communication system |
| CN111201717A (en) * | 2017-10-12 | 2020-05-26 | 阿维科斯天线股份有限公司 | RF signal aggregator and antenna system implementing the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1258139A (en) * | 1998-12-14 | 2000-06-28 | 松下电器产业株式会社 | Receiving device and receiving method |
| CN1550075A (en) * | 2001-08-28 | 2004-11-24 | 三菱电机株式会社 | Radio communication system, terminal station and base station of radio communication system, and transmission power control method of radio communication system |
| US20060050773A1 (en) * | 2004-09-09 | 2006-03-09 | Kabushiki Kaisha Toshiba | Receiving apparatus and method for receiving and processing spread spectrum radio signals |
| CN101227215A (en) * | 2007-01-16 | 2008-07-23 | 上海贝尔阿尔卡特股份有限公司 | Apparatus and method for transferring multipath signal by non-equilibrium power in MIMO system |
| CN101836370A (en) * | 2007-10-23 | 2010-09-15 | 京瓷株式会社 | Radio communication device and radio reception method |
-
2013
- 2013-10-17 CN CN201310489418.9A patent/CN103607229B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1258139A (en) * | 1998-12-14 | 2000-06-28 | 松下电器产业株式会社 | Receiving device and receiving method |
| CN1550075A (en) * | 2001-08-28 | 2004-11-24 | 三菱电机株式会社 | Radio communication system, terminal station and base station of radio communication system, and transmission power control method of radio communication system |
| US20060050773A1 (en) * | 2004-09-09 | 2006-03-09 | Kabushiki Kaisha Toshiba | Receiving apparatus and method for receiving and processing spread spectrum radio signals |
| CN101227215A (en) * | 2007-01-16 | 2008-07-23 | 上海贝尔阿尔卡特股份有限公司 | Apparatus and method for transferring multipath signal by non-equilibrium power in MIMO system |
| CN101836370A (en) * | 2007-10-23 | 2010-09-15 | 京瓷株式会社 | Radio communication device and radio reception method |
Non-Patent Citations (1)
| Title |
|---|
| 芮贤义等，: ""相关MIMO信道下空间分集系统中多用户分集性能"", 《电波科学学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111201717A (en) * | 2017-10-12 | 2020-05-26 | 阿维科斯天线股份有限公司 | RF signal aggregator and antenna system implementing the same |
| US11671069B2 (en) | 2017-10-12 | 2023-06-06 | KYOCERA AVX Components (San Diego), Inc. | RF signal aggregator and antenna system implementing the same |
| CN109787723A (en) * | 2019-01-04 | 2019-05-21 | 武汉邮电科学研究院有限公司 | A kind of detection method of the bit error rate, detection system and high order modulation communication system |
| CN109787723B (en) * | 2019-01-04 | 2021-08-24 | 武汉邮电科学研究院有限公司 | Detection method and detection system for bit error rate and high-order modulation communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103607229B (en) | 2017-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107123863B (en) | Antenna system and mobile terminal | |
| CN105471557B (en) | A kind of carrier wave polyplant | |
| CN105634569B (en) | Realize control circuit, the terminal of carrier wave polymerization and WIFI double frequency MIMO | |
| CN103368718B (en) | A kind of Full-duplex wireless communications device, method and system | |
| TW200731695A (en) | Switching diversity in broadcast OFDM systems based on multiple receive antennas | |
| CN202424728U (en) | Multi-antenna measuring system based on network analysis instrument and radio-frequency switch | |
| CN105633554B (en) | A kind of antenna circuit, electronic equipment | |
| CN102412917A (en) | Multiple-antenna measurement system and method based on network analyzer and RF (radio frequency) switch | |
| CN106209154A (en) | Antenna assembly and major-minor collection antenna-switching device thereof and method | |
| CN210986100U (en) | Radio frequency front-end circuit and electronic equipment for NR and EN-DC (noise, noise and noise) communication of 5G | |
| CN109039367B (en) | Multi-way selector switch and related products | |
| CN102185619A (en) | Anti-interference RF (radio frequency) reconfigurable transceiver | |
| CN104935371A (en) | High-speed orthogonal frequency division multiplexing (OFDM) wireless relay transmission system | |
| CN103607229B (en) | Multi-antenna selectivity based on restructural power combiner merges deversity scheme | |
| CN104954059A (en) | Method for receiving multiple channel signals and device thereof | |
| CN101771447B (en) | Device and system for emitting and receiving multi-carrier frequency signals | |
| CN205901715U (en) | Dual -band dual antenna receiving and dispatching front end circuit system | |
| KR101045760B1 (en) | An active radio antenna divider for vhf using a directional coupler | |
| CN103516379A (en) | Wireless communication module | |
| CN105871443B (en) | A kind of instruction Information revision method and system | |
| CN210609159U (en) | 5G terminal signal transmitting and receiving device and terminal | |
| US9667329B2 (en) | Method and apparatus for removing coupling between antennas in multi-antenna based wireless communication system | |
| CN101510788A (en) | Radio frequency receiving device and method capable of supporting multi-input and multi-output | |
| CN101022302B (en) | Radio frequency module | |
| CN205828616U (en) | A kind of LTE multisystem mixing platform for mimo system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |