CN109104231A - A method of wireless access point and realization multi-frequency radio relaying for relaying - Google Patents
A method of wireless access point and realization multi-frequency radio relaying for relaying Download PDFInfo
- Publication number
- CN109104231A CN109104231A CN201810866141.XA CN201810866141A CN109104231A CN 109104231 A CN109104231 A CN 109104231A CN 201810866141 A CN201810866141 A CN 201810866141A CN 109104231 A CN109104231 A CN 109104231A
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- China
- Prior art keywords
- relaying
- access point
- wireless
- wireless access
- controller
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- 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.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
Abstract
The present invention is suitable for the communications field, provides the method for a kind of wireless access point for relaying and realization multi-frequency radio relaying.The wireless access point for relaying includes controller and at least three difference rf receiver and transmitters connected to the controller, each rf receiver and transmitter connects the antenna of one or more frequency ranges, the described method includes: the controller of the wireless access point for relaying controls the wireless network that at least two rf receiver and transmitters are used to relay other wireless access point, controls remaining rf receiver and transmitter and local wireless service is provided；When the controller judges wherein one or more rf receiver and transmitters of the wireless network for relaying other wireless access point in the presence of interference, remaining rf receiver and transmitter normal communication for relaying the wireless network of other wireless access point is kept.The present invention can not only expand the total bandwidth of Radio Link, but also can guarantee the robustness of wireless relay system.
Description
Technical field
The invention belongs to the communications field more particularly to a kind of wireless access point for relaying and realize multi-frequency radio relaying
Method.
Background technique
Wireless access point (including wireless router and the wireless access points for relaying currently on the market
(WirelessAccessPoint, AP)) it is all made of single-frequency or double-frequency wireless relaying.Assuming that the wireless access point B for relaying is logical
The wireless network for crossing relay wireless access point A provides Local wireless network service to mobile terminal C.There are following several general shapes
Formula:
1, using single-frequency framework, as shown in Figure 1, wireless access point B uses some channel relay wireless of 2.4GHz frequency range
The wireless network of access point A, and network service is provided to mobile terminal C using same channel simultaneously.Wherein Ch indicates channel, x
Indicate channel number, in 2.4GHz frequency range, totally 13 channels, 1 channel indicate that central task frequency point exists in Chinese x=1,2 ... 13
2.412GHz, 6 channels indicate work in 2.437GHz, and 13 channels indicate work in 2.472GHz.
2, using single-frequency framework, as shown in figure 3, wireless access point B is connect using some channel relay wireless of 5GHz frequency range
The wireless network of access point A, and network service is provided to mobile terminal C using same channel simultaneously.Wherein Ch indicates channel, y table
Show channel number, in 5GHz frequency range, Chinese y=36,40,44,52,56,60,64,149,153,157,161,165 totally 13 letters
Road, 48 channels indicate central task frequency point in 5.180GHz, and 52 channels indicate work in 5.260GHz, and 149 channels indicate work
In 5.745GHz.
3, using double frequency framework, as shown in figure 5, wireless access point B is connect using some channel relay wireless of 5GHz frequency range
The wireless network of access point A, and network service is provided to mobile terminal C using some channel of 2.4GHz simultaneously.As shown in fig. 6,
Wireless access point B uses the wireless network of some channel relay wireless access point of 2.4GHz frequency range A, and uses 5GHz simultaneously
One channel provides network service to mobile terminal C.That is wireless relay and Local wireless network service uses different frequency range.
However, the method that the wireless access point for being currently used for relaying realizes wireless relay has the disadvantage in that
1, for the wireless access point B of relaying using single frequency point (the same channel of either 2.4GHz or 5GHz
Frequency point) wireless relay and Local wireless network service are carried out simultaneously, radio throughput performance at least reduces by 50%.Due to 802.11
Wireless network is a half-duplex protocol, same channel must using CSMA/CA (Carrier Sense Multiple Access conflict avoidance) come
Obtain channel competency for operation.Wireless access point B carries out wireless relay and Local wireless network service using the same channel, practical
On be by way of the time-division complete, between wireless access point B and wireless access point A and wireless access point B and mobile terminal C
Communication can not carry out simultaneously, therefore for mobile terminal C, link transmission efficiency directly connects wirelessly compared with mobile terminal C
Access point A throughput performance halves；At the same time, single frequency point cannot achieve multistage wireless relaying, because of wireless relay series
More, radio throughput performance exponentially declines.Level-one wireless relay (such as Fig. 1 and Fig. 3) radio throughput performance at least under
50% (1-1/2) drops, and second level wireless relay (such as Fig. 2 and Fig. 4) radio throughput performance at least declines 75% (1-1/4), three-level
Wireless relay radio throughput at least declines 87.5% (1-1/8), and so on, single frequency point cannot achieve multistage wireless at all
Relaying.
2, wireless relay being carried out using single frequency point channel for the wireless access point B of relaying, anti-air interference ability is poor,
Robustness is inadequate.Having in the environment of air interference, trunk channel is interfered, mobile terminal C just can not normal use network,
Data communication is interrupted.
3, dual-frequency point (1 2.4GHz channel frequency point and 1 5GHz channel frequency point) is used for the wireless access point B of relaying
When carrying out multistage wireless relaying, the wireless access point (the wireless access point B1 in such as Fig. 7) among relay system can not
It realizes and is communicated with previous stage wireless access point and rear stage wireless access point simultaneously, and Local wireless network service is provided.It is local
The frequency point of any wireless network services is bound to and a repetition in the frequency point of front and back stages wireless relay, and performance is caused to halve.
4, wireless relay, each wireless communication link are carried out using dual-frequency point channel for the wireless access point B of relaying
Equal only one frequency point communication, anti-air interference ability is poor, and robustness is inadequate.Having in the environment of air interference, trunk channel
Be interfered, mobile terminal C just can not normal use network, data communication interrupt.
Summary of the invention
The wireless access point that the purpose of the present invention is to provide a kind of for relaying, the method for realizing multi-frequency radio relaying and
Computer readable storage medium, it is intended to solve to carry out wireless relay and Local wireless network service, nothing simultaneously using single frequency point
Line throughput performance is low, using single frequency point channel carry out the anti-air interference ability of wireless relay it is poor, robustness is inadequate, multifrequency without
The unrestricted multistage wireless relaying of relaying hop count and the zero-decrement problem of radio throughput performance may be implemented in line relaying.
In a first aspect, the present invention provides a kind of method that the wireless access point for relaying realizes multi-frequency radio relaying,
The wireless access point for relaying includes that controller and at least three distinguish rf receiver and transmitters connected to the controller,
Each rf receiver and transmitter connects the antenna of one or more frequency ranges, which comprises
The controller of the wireless access point for relaying controls at least two rf receiver and transmitters for relaying it
The wireless network of his wireless access point controls remaining rf receiver and transmitter and provides local wireless service；
When the controller judge the wireless network for relaying other wireless access point wherein one or more are wireless
When RF transceiver has interference, remaining rf receiver and transmitter for relaying the wireless network of other wireless access point is kept
Normal communication.
Second aspect, the present invention provides a kind of computer readable storage medium, the computer readable storage medium is deposited
Computer program is contained, realizes that the wireless access point for relaying as above-mentioned is real when the computer program is executed by processor
The step of method of existing multi-frequency radio relaying.
The third aspect the present invention provides a kind of wireless access point for relaying, including controller, is connect with controller
Memory, at least three difference rf receiver and transmitters connected to the controller and one or more computer programs, often
A rf receiver and transmitter connects the antenna of one or more frequency ranges；Wherein one or more of computer programs are stored in
It in the memory, and is configured to be executed by the controller, the controller is realized when executing the computer program
The step of realizing the method for multi-frequency radio relaying such as the above-mentioned wireless access point for relaying.
Fourth aspect, the present invention provides a kind of multistage wireless relay system, the multistage wireless relay system include according to
Multiple such as above-mentioned wireless access point for relaying of secondary wireless connection.
In the present invention, since the wireless access point for relaying includes that at least three difference are connected to the controller wireless
RF transceiver, controller control the wireless network that at least two rf receiver and transmitters are used to relay other wireless access point,
Therefore the total bandwidth of Radio Link can not only be expanded, but also can by controlling remaining rf receiver and transmitter offer local wireless service
To guarantee the robustness of wireless relay system, and the unrestricted multistage wireless relaying of relaying hop count may be implemented and wirelessly handle up
It is undamped to measure performance.
Detailed description of the invention
Fig. 1 and Fig. 2 is that the prior art realizes wireless using the wireless access point for relaying of single-frequency framework (2.4GHz)
The schematic diagram of relaying.
Fig. 3 and Fig. 4 is that the prior art is realized in wireless using the wireless access point for relaying of single-frequency framework (5GHz)
After schematic diagram.
Fig. 5 to 7 is the signal that the prior art realizes wireless relay using the wireless access point for relaying of double frequency framework
Figure.
Fig. 8 is the method that the wireless access point for relaying that the embodiment of the present invention one provides realizes multi-frequency radio relaying
Flow chart.
Fig. 9 to 11 is that the embodiment of the present invention is realized in multi-frequency radio using the wireless access point for relaying of multifrequency framework
After schematic diagram.
Figure 12 is the specific block diagram for the wireless access point for relaying that the embodiment of the present invention three provides.
Specific embodiment
In order to which the purpose of the present invention, technical solution and beneficial effect is more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain this hair
It is bright, it is not intended to limit the present invention.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
Embodiment one:
It is realized in multi-frequency radio referring to Fig. 8, the embodiment of the present invention one provides a kind of wireless access point for relaying
After method, the wireless access point for relaying includes that controller and at least three connected to the controller respectively wirelessly penetrate
Frequency transceiver, each rf receiver and transmitter connect the antenna of one or more frequency ranges, the described method comprises the following steps: needing to infuse
Meaning, if having substantially the same as a result, the wireless access point for relaying of the invention realizes the side of multi-frequency radio relaying
Method is not limited with process sequence shown in Fig. 8.
S101, the wireless access point for relaying controller control during at least two rf receiver and transmitters are used for
After the wireless network of other wireless access point, controls remaining rf receiver and transmitter and local wireless service is provided；
S102, wherein one or more of the wireless network for relaying other wireless access point are judged when the controller
When rf receiver and transmitter has interference, remaining less radio-frequency of the wireless network for relaying other wireless access point is kept to receive
Send out device normal communication.
In the embodiment of the present invention one, controller can be MCU, CPU, SOC etc..Antenna can be 2.4GHz frequency range day
Line, 5GHz band antenna etc..
In the embodiment of the present invention one, the wireless access point for relaying connects with controller respectively including at least four
The rf receiver and transmitter connect, controller control at least two rf receiver and transmitters and provide local wireless service, control remaining
Rf receiver and transmitter be used to relay the wireless networks of other wireless access point.
The embodiment of the present invention one is exemplified below:
Referring to Fig. 9, for the nothing for relaying including three difference rf receiver and transmitters connected to the controller
Line access point B (possessing 1#, 2# and 3# totally 3 radio frequency links simultaneously, every radio frequency link can be the radio frequency link of 2.4G,
It is also possible to the radio frequency link of 5GHz) for, when realizing multi-frequency radio relaying, controller control 1# and 2# radio frequency link is used for
The wireless network of relay wireless access point A, control 3# radio frequency link provide local wireless service to mobile terminal C.
Advantage is: the total bandwidth of 1. wireless relay is 2 times of single channel relaying；2. due to trunk channel and providing local
The channel of wireless service be it is separated, not use duplicate channel, mobile terminal C using wireless network be not present handling capacity
The problem of reduction can be halved；3. when 2 wireless channels for wireless relay wherein have one there is interference when, another can be with
Continue the robustness that normal communication ensures wireless relay links.4. the unrestricted multistage wireless relaying of relaying hop count may be implemented
And radio throughput performance is undamped.
Referring to Fig. 10, for the nothing for relaying including n difference rf receiver and transmitter connected to the controller
Line access point B (possesses 1#, 2# ... n#, total n radio frequency link simultaneously, every radio frequency link can be the rf chain of 2.4G
Road is also possible to the radio frequency link of 5GHz) for, when realizing multi-frequency radio relaying, controller controls 1#, 2# ... (n-1) #
Radio frequency link is used for the wireless network of relay wireless access point A, and control n# radio frequency link provides local wireless clothes to mobile terminal C
Business.
Advantage is: the total bandwidth of 1. wireless relay is single channel relaying (n-1) times；2. due to trunk channel and offer
The channel of local service be it is separated, not use duplicate channel, mobile terminal C using wireless network be not present handling capacity
The problem of reduction can be halved；3. when (n-1) a wireless channel for being used for wireless relay wherein has 1 or m (wherein m < n-1) to deposit
In interference, at least there are also (n-1-m) a channels can continue the robustness that normal communication ensures wireless relay links.4. can be with
It realizes the unrestricted multistage wireless relaying of relaying hop count and radio throughput performance is undamped.
Figure 11 is please referred to, for including the nothing for relaying of n difference rf receiver and transmitter connected to the controller
Line access point B (possesses 1#, 2# ... n#, total n radio frequency link simultaneously, every radio frequency link can be the rf chain of 2.4G
Road is also possible to the radio frequency link of 5GHz) for, when realizing multi-frequency radio relaying, while realizing that multifrequency locally covers, control
Device controls the wireless network that 1#, 2# ... m# radio frequency link are used for relay wireless access point A, controls (m+1) #, (m+2) # ...
N# radio frequency link provides local wireless service to mobile terminal C.
Advantage: the total bandwidth of 1. wireless relay is m times of single channel relaying；2. due to trunk channel and providing local service
Channel be it is separated, do not use duplicate channel, mobile terminal C halves drop there is no throughput performance using wireless network
Low problem；3. when m wireless channel for being used for wireless relay wherein has 1 or p (wherein p < m-1) there are when interference, until
It is few to continue the robustness that normal communication ensures wireless relay links there are also (m-1-p) a channel.4. wireless access point B possesses
(n-m) a channel can provide local service, and wireless access quantity and concurrent flow are single-channel n-m times.5. can be real
Now the unrestricted multistage wireless of relaying hop count relays and radio throughput performance is undamped.
Embodiment two:
Second embodiment of the present invention provides a kind of computer readable storage medium, the computer-readable recording medium storage
Have computer program, when the computer program is executed by processor realize as the embodiment of the present invention one provides be used for relay
Wireless access point realizes the step of method of multi-frequency radio relaying.
Embodiment three:
Figure 12 shows the specific block diagram of the wireless access point for relaying of the offer of the embodiment of the present invention three, a kind of
Wireless access point for relaying include controller 11, the memory being connect with controller 11 14, at least three respectively with control
The rf receiver and transmitter 12 and one or more computer programs that device 11 connects, each connection of rf receiver and transmitter 12 one
The antenna 13 of a or multiple frequency ranges；Wherein one or more of computer programs are stored in the memory 14, and
It is configured to be executed by the controller 11, the controller 11 realizes such as the embodiment of the present invention when executing the computer program
The step of one wireless access point for relaying provided realizes the method for multi-frequency radio relaying.
Example IV:
The embodiment of the present invention four provides a kind of multistage wireless relay system, and the multistage wireless relay system includes successively
The multiple wireless access point for relaying provided such as the embodiment of the present invention three being wirelessly connected.
In the present invention, since the wireless access point for relaying includes that at least three difference are connected to the controller wireless
RF transceiver, controller control the wireless network that at least two rf receiver and transmitters are used to relay other wireless access point,
Therefore the total bandwidth of Radio Link can not only be expanded, but also can by controlling remaining rf receiver and transmitter offer local wireless service
To guarantee the robustness of wireless relay system, and the unrestricted multistage wireless relaying of relaying hop count may be implemented and wirelessly handle up
It is undamped to measure performance.Again since the wireless access point for relaying includes at least four difference less radio-frequencies connected to the controller
When transceiver, controller controls at least two rf receiver and transmitters and provides local wireless service, controls remaining less radio-frequency
Transceiver is used to relay the wireless network of other wireless access point, therefore is able to satisfy the access demand of multi-mobile-terminal.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random
Access Memory), disk or CD etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
1. a kind of method that the wireless access point for relaying realizes multi-frequency radio relaying, which is characterized in that described for relaying
Wireless access point include controller and at least three difference rf receiver and transmitters connected to the controller, each less radio-frequency
Transceiver connects the antenna of one or more frequency ranges, which comprises
The controller of the wireless access point for relaying controls at least two rf receiver and transmitters for relaying other nothings
The wireless network of line access point controls remaining rf receiver and transmitter and provides local wireless service；
When the controller judges wherein one or more less radio-frequencies of the wireless network for relaying other wireless access point
When transceiver has interference, keep normal for relaying remaining rf receiver and transmitter of the wireless network of other wireless access point
Communication.
2. the method as described in claim 1, which is characterized in that the controller is MCU, CPU or SOC.
3. the method as described in claim 1, which is characterized in that the antenna is 2.4GHz band antenna and/or 5GHz frequency range
Antenna.
4. the method as described in claim 1, which is characterized in that when the wireless access point for relaying includes at least four
Respectively when rf receiver and transmitter connected to the controller, controller controls at least two rf receiver and transmitters and provides local nothing
Line service controls remaining rf receiver and transmitter for relaying the wireless network of other wireless access point.
5. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In realization such as Claims 1-4 described in any item wirelessly connecing for relaying when the computer program is executed by processor
Access point realizes the step of method of multi-frequency radio relaying.
6. a kind of wireless access point for relaying, which is characterized in that including controller, memory connected to the controller, extremely
Few three difference rf receiver and transmitter connected to the controller and one or more computer programs, each less radio-frequency are received
Send out the antenna that device connects one or more frequency ranges；Wherein one or more of computer programs are stored in the memory
In, and be configured to be executed by the controller, the controller realizes such as claim 1 when executing the computer program
The step of realizing the method for multi-frequency radio relaying to 4 described in any item wireless access point for relaying.
7. a kind of multistage wireless relay system, which is characterized in that the multistage wireless relay system includes successively being wirelessly connected
Multiple wireless access point as claimed in claim 6 for relaying.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810866141.XA CN109104231A (en) | 2018-08-01 | 2018-08-01 | A method of wireless access point and realization multi-frequency radio relaying for relaying |
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| CN201810866141.XA CN109104231A (en) | 2018-08-01 | 2018-08-01 | A method of wireless access point and realization multi-frequency radio relaying for relaying |
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