CN102148644A - WiFi (Wireless Fidelity) RF (Radio Frequency) switch, signal switching method thereof and system adopting switch - Google Patents
WiFi (Wireless Fidelity) RF (Radio Frequency) switch, signal switching method thereof and system adopting switch Download PDFInfo
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- CN102148644A CN102148644A CN2011100281618A CN201110028161A CN102148644A CN 102148644 A CN102148644 A CN 102148644A CN 2011100281618 A CN2011100281618 A CN 2011100281618A CN 201110028161 A CN201110028161 A CN 201110028161A CN 102148644 A CN102148644 A CN 102148644A
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Abstract
The invention discloses a WiFi (Wireless Fidelity) RF (Radio Frequency) switch, a system adopting the same and a signal switching method of the switch. The signal switching method comprises the following steps of: firstly, distributing corresponding transmitting signals into n paths by access end mixers and splitters in an RF switch control unit and respectively distributing the n paths of transmitting signals to n fiber end mixers and splitters through n RF switches of the RF switch control unit, wherein the transmitter signals are transmitted to various fiber port modules by WiFi access points; mixing respective transmitting signal from the WiFi access points by each fiber end mixer, rounding to a subsequent downlink power compensation unit through a circulator connected with the fiber end mixers for power compensation and transmitting to a corresponding fiber port module to output; and transmitting a receiving signal received by each fiber port module back to the WiFi access point in an opposite mode but saving a power compensation link therein. The invention realizes complete-exchange reconfigurable-capacity low-cost far-distance large-range coverage in WiFi signal networking.
Description
[technical field]
The present invention relates to a kind of WiFi radio frequency exchange machine, relate to its signal switching method simultaneously, and relate to a kind of WiFi radio frequency exchange system.
[technical background]
At present, the WiFi WLAN (wireless local area network) is just more and more universal, has become the preferred option of setting up WLAN (wireless local area network), but the signal cover of WiFi access point (Access Point is called for short AP) is narrower, is generally: indoor, and 50～100 meters; Outdoor, 100～150 meters.
In order to enlarge the coverage of WiFi signal, the main method of taking has: the radiant power that strengthens WiFi equipment; Adopt optical fiber or cable transmission WiFi signal, increase the WiFi transmission range.
WiFi adopts ISM band, and its radiant power is restricted, and therefore adopts the radiant power that strengthens WiFi equipment, the method that enlarges the WiFi signal cover to be restricted.
The distance of cable transmission WiFi radiofrequency signal is very short, has only about 200 meters, therefore adopts the coverage of wire cable raising WiFi signal, DeGrain.
At present, because the price of optical fiber is more and more cheap, beginning one's study in the industry increases the WiFi signal cover by Optical Fiber Transmission under the rational prerequisite of cost, and in theory, the method for employing mainly contains:
1,, connects far-end WiFi access point by the Optical Fiber Transmission base band data.The far-end access point receives base band data, by data processing, modulation, frequency conversion, power amplification, goes out by aerial radiation again.The far-end access point function complexity of this scheme is unfavorable for system management and upgrading.
2,, after the far-end access point received signal,, go out by aerial radiation again through frequency conversion, power amplification by Optical Fiber Transmission WiFi intermediate-freuqncy signal.This scheme far-end access point still needs complicated local oscillator, frequency converter and filter.
3, by Optical Fiber Transmission WiFi radiofrequency signal, distant-end node only need pass through power amplification, light/electricity conversion, electricity/light conversion, function and structure are all very simple, and the access of WiFi, authentication and management are all finished in control centre, the management of system and upgrade very convenient.
At present, the technology that the inherent radio frequency domains of row exchanges the WiFi signal is still located the blank stage basically, and corresponding exchange equipment does not occur yet, and the applicant puts forth effort on and fills up this blank.
[summary of the invention]
Primary and foremost purpose of the present invention is to provide a kind of WiFi radio frequency exchange machine, covers so that the radiofrequency signal of a plurality of WiFi access points realizes full exchange, capacity restructural, low-cost long-distance large-range.
Another object of the present invention is to provide a kind of signal switching method of WiFi radio frequency exchange machine, make the signal of this switch be able to orderly exchange.
A further object of the present invention is to provide a kind of switching system that uses this WiFi radio frequency exchange machine, realizes networking to utilize this switch.
For realizing this purpose, the present invention adopts following technical scheme:
WiFi radio frequency exchange machine of the present invention, be used for the signal allocation of m WiFi access point is used for the fiber port module that is connected with capping unit by optical fiber to n, make the handled signal of each fiber port module all comprise the signal of described m WiFi access point, m, n are the positive integer more than or equal to 2, each WiFi access point works in different channel respectively, and this switch comprises:
M radio frequency exchange control unit, corresponding with a WiFi access point respectively, each radio frequency exchange control unit is used for penetrating signal allocation to n optical fiber end combiner-divider with riches all the way from corresponding WiFi access point, and is used for transferring to this corresponding WiFi access point with closing the Lu Chengyi road from each one tunnel received signal of n optical fiber end combiner-divider;
Described n optical fiber end combiner-divider, corresponding with a circulator respectively, each optical fiber end combiner-divider is used for will come being dispensed to m radio frequency exchange control unit from the received signal of corresponding circulator, and be used for from m radio frequency exchange control unit respectively riches all the way penetrates signal and close the Lu Chengyi road and transfer to corresponding circulator;
N described circulator, be respectively applied for and realize transmitting of each WiFi access point and separating of received signal, so that described transmitting gone in ring that a power compensating unit that is attached thereto is carried out power back-off after a fiber port module output that is equipped with for this circulator separately, and the received signal that this fiber port module is received gone in ring arrive corresponding optical fiber end combiner-divider.
Described each radio frequency exchange control unit comprises incoming end combiner-divider and n radio-frequency (RF) switch, this incoming end combiner-divider is used for being separated into from transmitting of corresponding WiFi access point the n road respectively through this n radio-frequency (RF) switch output, and is used for transferring to corresponding WiFi access point with closing the Lu Chengyi road from each one tunnel received signal of passing through n radio-frequency (RF) switch respectively of described n optical fiber end combiner-divider; Described radio-frequency (RF) switch is used to control the break-make that transmits with received signal.
Described each radio frequency exchange control unit all is connected with a control interface, and this control interface is used for being connected with a control unit, and this control unit is used to send the on off operating mode of each radio-frequency (RF) switch of each radio frequency exchange control unit of signal controlling.
Described control unit is built in this switch.Perhaps, described control unit is a personal computer, places this switch outside to be connected with this control interface.
It is characterized in that, described fiber port module comprises that being used for electrical signal conversion is the electric light module of light signal and the optical-electric module that is used for light signal is converted to the signal of telecommunication, the electric light module is used to handle described transmitting, and the electric light module is used to handle described received signal.
The signal switching method of WiFi radio frequency exchange machine of the present invention, it comprises the steps:
Send to transmitting of each fiber port module for each WiFi access point, earlier by the incoming end combiner-divider in the radio frequency exchange control unit will transmit accordingly be distributed into the n road after, n radio-frequency (RF) switch through this radio frequency exchange control unit is assigned to n optical fiber end combiner-divider respectively, each optical fiber end mixer will riches all the way penetrates signal and close the road from each of each WiFi access point, then after the circulator through being attached thereto goes in ring and carries out power back-off for follow-up descending power compensating unit, send to corresponding fiber port module output;
Received signal for each WiFi access point reception from each fiber port module, described circulator through being connected with each fiber port module is with it described optical fiber end combiner-divider that goes in ring earlier, by each optical fiber end combiner-divider the received signal that it received is assigned in m the radio frequency exchange control unit again, in each radio frequency exchange control unit, received signal enters the incoming end combiner-divider through m radio-frequency (RF) switch respectively, will be entered by this incoming end combiner-divider and be sent to the WiFi access point after wherein each road received signal is closed the road.
This signal switching method also comprises a step, in this step, is controlled the on off operating mode of at least one radio-frequency (RF) switch at least one radio frequency exchange control unit by a control unit aut sign.
WiFi radio frequency exchange of the present invention system, comprise m WiFi access point and n capping unit that works in different channel, this system also comprises aforesaid WiFi radio frequency exchange machine, described m WiFi access point is connected with the incoming end combiner-divider of m radio frequency exchange control unit in the WiFi radio frequency exchange machine respectively, n fiber port module is connected with n capping unit through optical fiber in the described WiFi radio frequency exchange machine, and each capping unit all is used for the signal that includes the described different channel that is not more than m is covered.The channel number that signal comprised that described capping unit covered is less than m.
Compared with prior art, the present invention possesses following advantage:
1, the present invention has realized the function of the full exchange of signal between a plurality of WiFi access points and a plurality of capping unit, the signal that is any one WiFi access point can be by one or more fiber port module distribution to far-end, and any one WiFi access point all can be from any one capping unit received signal, the handled multiple signal of each distant-end node takies different working channels respectively, and each WiFi access point still works in a working channel of monopolizing.
2, exchange capacity of the present invention is reconfigurable, particularly, by control the path of transmitting of WiFi access point and received signal by radio-frequency (RF) switch, the quantity of the WiFi access point of feasible access far-end is variable, the number of WiFi access point can be set as required, realize the variable of exchange capacity.
3, owing to realized the function of exchange of WiFi radiofrequency signal, and adopt optical fiber as transmission medium, capping unit can be zoomed out greatly, transfer of data has been expanded the covering power of WiFi networking at a distance, the hardware device of radio-frequency stage has guaranteed the controlled of equipment cost again, therefore, can be from family, the simple networking of office to the complicated networking development in sub-district, for solid foundation is established in the WiFi networking.
4, WiFi radio frequency exchange machine provided by the invention provides as a separate equipment first, meets the principle of modularized design, also helps large-scale production, and is convenient to assembling and maintenance, more easily popularizes, and has stronger versatility.
[description of drawings]
Fig. 1 is for WiFi radio frequency exchange machine in the WiFi radio frequency exchange of the present invention system and be attached thereto the theory diagram of the WiFi access point that connects;
Fig. 2 is the more detailed theory diagram of radio frequency exchange control unit in the WiFi radio frequency exchange machine of the present invention;
Fig. 3 is the theory diagram of an embodiment of capping unit in the WiFi radio frequency exchange of the present invention system.
[embodiment]
Below in conjunction with accompanying drawing and exemplary embodiment the present invention is done to describe further, wherein identical label all refers to identical parts in the accompanying drawing.In addition, if the detailed description of known technology is unnecessary for feature of the present invention is shown, then with its omission.
Fig. 1 and Fig. 2 are the structured flowchart of the exemplary embodiment of a kind of WiFi radio frequency exchange of the present invention system, and wherein Fig. 1 comprises WiFi access point 101 and WiFi radio frequency exchange machine part, and Fig. 2 discloses the capping unit part.
Consult Fig. 1, WiFi radio frequency exchange machine of the present invention comprises control interface 102, radio frequency exchange control unit (103,104,105), optical fiber end combiner-divider 106, circulator 107, descending power compensating unit 108, fiber port module 109, fiber port (110,111,112).
Three WiFi access points have different working channels in the exemplary embodiment of the present invention, has different network name (SSID), mode of operation is 802.11b/g, and working channel is respectively, and: AP1 is operated in that 1 channel, AP2 are operated in 6 channels, AP3 is operated in 11 channels.
Each radio frequency exchange control unit 103,104,105 has identical structure.The radio frequency exchange control unit is made of incoming end combiner-divider 202 (see figure 2)s, three tunnel radio-frequency (RF) switch A, B, C, and the signal that enters through incoming end combiner-divider 202 is by along separate routes, and each road is respectively through a radio-frequency (RF) switch output.Therefore, by disconnection or the closure of switch A, B, C, the analog radio-frequency signal of any one road WiFi access point can be shunted to one the tunnel, two-way or three tunnel outputs, also can not transmit the signal of this WiFi access point (AP).
Riches all the way penetrates (descending) signal and close the Lu Chengyi road with each of three radio frequency exchange control units (103,104,105) output for each optical fiber end combiner-divider 106, and after circulator 107 and 108 power amplifications of descending power compensating unit, modulation optical fiber port module 109 is realized the output of one or more downstream signal at a fiber port; Up analog radio-frequency signal (received signal) directly is shunted to three the tunnel through optical fiber end combiner-divider 106, export three radio frequency exchange control units (103,104,105) to, in each radio frequency exchange control unit inside, coming enters the incoming end combiner-divider from the signal of optical fiber end combiner-divider through corresponding radio-frequency (RF) switch, and the optical fiber end combiner-divider just receives it each road and closes the road from the received signal of different fiber end combiner-divider and export corresponding WiFi access point to.
In the present embodiment, the incoming end combiner-divider 202 in the radio frequency exchange control unit has identical 26S Proteasome Structure and Function with optical fiber end combiner-divider 106.
Descending power compensating unit 108 is used for the down transmitting power of compensate for emission signal, amplifies transmitting.
Electricity in the fiber port module 109/light conversion portion (electric light module) converts the analog radio-frequency signal of circulator 107 downstream end output to light signal; Light in the fiber port module 109/electric conversion portion (optical-electric module) converts the light signal that receives to uplink port that the analog radio frequency signal of telecommunication exports circulator 107 to.
Every group of fiber port in each fiber port module 109 constitutes by receiving and launching two fibre circuits.Fiber port is by the monomode fiber remote node of the connection, i.e. the alleged capping unit of the present invention, capping unit are used to realize the covering on a large scale of WiFi radiofrequency signal.
In the embodiments of the invention, for avoiding 101 of a plurality of WiFi access points because the isolation between optical fiber end combiner-divider 106 ports is not enough, and making the mutual interference of signal phase, each WiFi access point 101 output (descending) to the transmit signal power of radio frequency exchange control unit (103,104,105) is defined less than-5dBm.Like this after the sending and receiving of circulator 107 separate, the analog radio-frequency signal power that is added to the downstream end (electric light module) of fiber port module 109 will influence the wireless coverage of far-end capping unit less than-10dBm.Be compensating emission power, between the downstream end of the downstream end of circulator 107 and fiber port module 109, adopt descending power compensating unit 108 to carry out descending (emission) power back-off.
In the embodiments of the invention, descending power compensating unit 108 adopts 5-15dBm tunable radio frequency power amplifier.
The signal switching method of following elaboration WiFi radio frequency exchange of the present invention machine is as follows:
The radio frequency exchange control unit that links to each other with WiFi access point 101 (103,104,105) is made of incoming end combiner-divider 202 and three radio-frequency (RF) switch, and the output of each radio-frequency (RF) switch all links to each other with an optical fiber end combiner-divider 106.The control of the control signal of the condition controlled system interface 102 of three radio-frequency (RF) switch, and three switches independently receive the control of control signal.As the switch A closure in the radio frequency exchange control unit 103, when other two switch B, C disconnect, then the signal allocation of WiFi access point AP1 is distributed to far-end to the fiber port 110 that links to each other with Closing Switch A by fibre circuit; When the switch A in the radio frequency exchange control unit 103, B closure, switch C disconnection, then the signal allocation of WiFi access point AP1 is distributed to the far-end capping unit to the fiber port 110 and 111 that links to each other with Closing Switch A, B by fibre circuit; When three switch A, B, C were closed, then the signal allocation of WiFi access point AP1 was distributed to far-end to the fiber port 110,111,112 that links to each other with three Closing Switch A, B, C by fibre circuit; As three switch A, B, when C disconnects, then the signal of WiFi access point is not dispensed to any fiber port, just is not distributed to far-end yet; The signal of any one WiFi access point (AP) can be distributed to the far-end capping unit by one or more fiber ports like this, perhaps is not distributed to the far-end capping unit;
In like manner, any one fiber port can WiFi access point of sending and receiving or the signal of a plurality of WiFi access point (AP), and the perhaps signal of not sending and receiving WiFi access point specifically describes as follows:
When the switch A closure of having only the radio frequency exchange control unit 103 that links to each other with AP1, when the switch A of the radio frequency exchange control unit 104,105 that links to each other with AP2, AP3 disconnects, only transmit the radiofrequency signal of AP1 in the fiber port 110, i.e. the far-end capping unit that links to each other with fiber port 110 signal of AP1 that only distributes; When with radio frequency exchange control unit 103,104 that AP1 links to each other with AP2 in switch A closure, when the switch A in the radio frequency exchange control unit 105 that links to each other with AP3 disconnects, the radiofrequency signal of transmission AP1 and AP2, i.e. distant-end node distribution AP1 that links to each other with fiber port 110 and the signal of AP2 in the fiber port 110; When with radio frequency exchange control unit 103,104,105 that AP1, AP2 link to each other with AP3 in switch A when all closed, transmit the radiofrequency signal of AP1, AP2 and AP3 in the fiber port 110, far-end access point distribution AP1, AP2 that promptly links to each other and the signal of AP3 with fiber port 110; When with radio frequency exchange control unit 103,104,105 that AP1, AP2 link to each other with AP3 in switch A when all disconnecting, do not transmit the signal that AP is ordered in the fiber port 110; In like manner, fiber port 111,112 has identical characteristic.
In the WiFi radio frequency exchange machine of the present invention, the number of WiFi access point is identical with the number of incoming end combiner-divider in the radio frequency exchange control unit, the number of fiber port number of modules and circulator number, optical fiber end combiner-divider, and the number of radio-frequency (RF) switch is identical in every radio frequency exchange control unit, but needn't be identical between these two groups of quantity.Represent that in the algebraically mode establish the former and be m, the latter is n, herein, m, n are the positive integer more than or equal to 2, and m both can equate also can not wait with n.
Fig. 2 is the more detailed theory diagram of radio frequency exchange control unit of the present invention (103,104,105)
Radio frequency exchange control unit (103,104,105) is made of incoming end combiner-divider 202, drive circuit (204,205,206) and three groups of switching tubes (Q1, Q2, Q3), (Q4, Q5, Q6), (Q7, Q8, Q9) and auxiliary circuit thereof.
Incoming end combiner-divider 202 is realized the demultiplex of one tunnel descending (emission) signals, multichannel up (reception) signal close the road.
Drive circuit (204,205,206) is used for the control signal of control interface 102 input is handled, the anti-phase control signal of output two-way, the conducting of control switch pipe and ending.
The conducting of drive circuit 204 control switch pipe Q1, Q2, Q3 and ending; The conducting of drive circuit 205 control switch pipe Q4, Q5, Q6 and ending; The conducting of drive circuit 206 control switch pipe Q7, Q8, Q9 and ending.Three groups of switches independently receive the control of drive circuit separately.
Drive circuit 204 produces the two-way reverse control signal, disconnection or the closure of control switch pipe Q1, Q3 and Q2, thus control Cx is to the signalling channel of ChA.When the Q2 closure, when Q1, Q3 disconnect, form path between Cx and ChA, corresponding WiFi access point (AP) signal is distributed to far-end by the fiber port corresponding with ChA; When the Q2 disconnection, when Q1, Q3 were closed, Cx and ChA were separated, do not have signal path, and corresponding WiFi access point (AP) signal is not distributed to the fiber port corresponding with ChA;
In like manner, Cx is controlled by drive circuit 205 and switching tube Q4, Q5, Q6 to the signalling channel between ChB; Cx is controlled by drive circuit 206 and switching tube Q7, Q8, Q9 to the signalling channel between ChC;
No. three drive circuits (204,205,206) are controlled three bars passages (Cx to ChA, Cx to ChB, Cx to ChC) independently, thereby realize that WiFi access point (AP) signal is distributed to corresponding distant-end node by one or more fiber ports, perhaps is not distributed to far-end;
The capping unit of Fig. 3 only is an an example of the present invention, the number of capping unit of the present invention is corresponding with fiber port module 109 numbers of switch, each capping unit comprises a fiber port module 90 that is connected through optical fiber with switch fiber port module 109, what be connected with capping unit fiber port module 90 is used for the power amplifier 91 that transmits and carry out power amplification to being received, be used for amplified signal is carried out the transmitting antenna 93 of descending covering, be used for the reception antenna 94 of the up WiFi radiofrequency signal of receiving terminal and the low noise amplifier 92 that is used for the received signal of this reception antenna is carried out power amplification, after low noise amplifier 92 amplified received signal, the fiber port module 90 that is transferred to capping unit sent to switch.
Top description clearly show that a kind of WiFi radio frequency exchange system of the present invention and switch thereof, adopt Optical Fiber Transmission WiFi radiofrequency signal, realize that full exchange, capacity restructural, the low-cost long-distance large-range of the radiofrequency signal of a plurality of WiFi access points covers.
Fiber port 110,111,112 adopts two optical signal transmission fibers in the exemplary embodiment of the present invention, and transmission transmits (descending) and received signal (up) respectively.When adopting wavelength-division multiplex technique, fiber port module 109 inside also can realize single fiber transmission uplink and downlink two-way signaling.
The signal bandwidth of photoelectricity port module 109 is 1600MHz-2700MHz in the exemplary embodiment of the present invention, also can be used for the radiofrequency signal fiber distribution of other mobile communication system.
In the exemplary embodiment of the present invention, the radio-frequency signal source of three WiFi access point AP1, AP2, AP3 is adopted in the analog radio-frequency signal source.Because radio frequency exchange control unit of the present invention does not have frequency selectivity, in signal bandwidth (1600MHz-2700MHz) scope of photoelectricity port module, can work, therefore the WiFi analog radio-frequency signal not only can be transmitted in a kind of light-carried wireless radio frequency exchange of the present invention system, also can transmit 2G/3G mobile communication signals such as 1800MHz, 1900MHz, 2100MHz.
Though shown exemplary embodiments more of the present invention above, but it should be appreciated by those skilled in the art that, under the situation that does not break away from principle of the present invention or spirit, can make a change these exemplary embodiments, scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. WiFi radio frequency exchange machine, be used for the signal allocation of m WiFi access point is used for the fiber port module that is connected with capping unit by optical fiber to n, make the handled signal of each fiber port module all comprise the signal of described m WiFi access point, m, n are the positive integer more than or equal to 2, it is characterized in that, each WiFi access point works in different channel respectively, and this switch comprises:
M radio frequency exchange control unit, corresponding with a WiFi access point respectively, each radio frequency exchange control unit is used for penetrating signal allocation to n optical fiber end combiner-divider with riches all the way from corresponding WiFi access point, and is used for transferring to this corresponding WiFi access point with closing the Lu Chengyi road from each one tunnel received signal of n optical fiber end combiner-divider;
Described n optical fiber end combiner-divider, corresponding with a circulator respectively, each optical fiber end combiner-divider is used for will come being dispensed to m radio frequency exchange control unit from the received signal of corresponding circulator, and be used for from m radio frequency exchange control unit respectively riches all the way penetrates signal and close the Lu Chengyi road and transfer to corresponding circulator;
N described circulator, be respectively applied for and realize transmitting of each WiFi access point and separating of received signal, so that described transmitting gone in ring that a power compensating unit that is attached thereto is carried out power back-off after a fiber port module output that is equipped with for this circulator separately, and the received signal that this fiber port module is received gone in ring arrive corresponding optical fiber end combiner-divider.
2. WiFi radio frequency exchange machine according to claim 1, it is characterized in that, described each radio frequency exchange control unit comprises incoming end combiner-divider and n radio-frequency (RF) switch, this incoming end combiner-divider is used for being separated into from transmitting of corresponding WiFi access point the n road respectively through this n radio-frequency (RF) switch output, and is used for transferring to corresponding WiFi access point with closing the Lu Chengyi road from each one tunnel received signal of passing through n radio-frequency (RF) switch respectively of described n optical fiber end combiner-divider; Described radio-frequency (RF) switch is used to control the break-make that transmits with received signal.
3. WiFi radio frequency exchange machine according to claim 2, it is characterized in that, described each radio frequency exchange control unit all is connected with a control interface, this control interface is used for being connected with a control unit, and this control unit is used to send the on off operating mode of each radio-frequency (RF) switch of each radio frequency exchange control unit of signal controlling.
4. WiFi radio frequency exchange machine according to claim 3 is characterized in that described control unit is built in this switch.
5. WiFi radio frequency exchange machine according to claim 3 is characterized in that described control unit is a personal computer, places this switch outside to be connected with this control interface.
6. according to any described WiFi radio frequency exchange machine in the claim 1 to 4, it is characterized in that, described fiber port module comprises that being used for electrical signal conversion is the electric light module of light signal and the optical-electric module that is used for light signal is converted to the signal of telecommunication, the electric light module is used to handle described transmitting, and the electric light module is used to handle described received signal.
7. the signal switching method of a WiFi radio frequency exchange machine according to claim 4 is characterized in that it comprises the steps:
Send to transmitting of each fiber port module for each WiFi access point, earlier by the incoming end combiner-divider in the radio frequency exchange control unit will transmit accordingly be distributed into the n road after, n radio-frequency (RF) switch through this radio frequency exchange control unit is assigned to n optical fiber end combiner-divider respectively, each optical fiber end mixer will riches all the way penetrates signal and close the road from each of each WiFi access point, then after the circulator through being attached thereto goes in ring and carries out power back-off for follow-up descending power compensating unit, send to corresponding fiber port module output;
Received signal for each WiFi access point reception from each fiber port module, described circulator through being connected with each fiber port module is with it described optical fiber end combiner-divider that goes in ring earlier, by each optical fiber end combiner-divider the received signal that it received is assigned in m the radio frequency exchange control unit again, in each radio frequency exchange control unit, received signal enters the incoming end combiner-divider through m radio-frequency (RF) switch respectively, will be entered by this incoming end combiner-divider and be sent to the WiFi access point after wherein each road received signal is closed the road.
8. signal switching method according to claim 7 is characterized in that, it comprises a step, in this step, is controlled the on off operating mode of at least one radio-frequency (RF) switch at least one radio frequency exchange control unit by a control unit aut sign.
9. WiFi radio frequency exchange system, comprise m WiFi access point and n capping unit that works in different channel, it is characterized in that, this system also comprises as any described WiFi radio frequency exchange machine in the claim 1 to 6, described m WiFi access point is connected with the incoming end combiner-divider of m radio frequency exchange control unit in the WiFi radio frequency exchange machine respectively, n fiber port module is connected with n capping unit through optical fiber in the described WiFi radio frequency exchange machine, and each capping unit all is used for the signal that includes the described different channel that is not more than m is covered.
10. WiFi radio frequency exchange according to claim 9 system, it is characterized in that: the channel number that signal comprised that described capping unit covered is less than m.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664681A (en) * | 2012-04-16 | 2012-09-12 | 广州飞瑞敖电子科技有限公司 | Radio-over-fiber switching system |
| CN104320783A (en) * | 2014-06-16 | 2015-01-28 | 深圳海联讯科技股份有限公司 | ROF radio frequency switching system and radio frequency switching method |
| CN114448884A (en) * | 2022-03-02 | 2022-05-06 | 深圳市友华通信技术有限公司 | Routing device, power calibration method of routing device and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101272296A (en) * | 2007-03-20 | 2008-09-24 | 友劲科技股份有限公司 | Multi-module wireless network device, system and method |
| WO2009014710A1 (en) * | 2007-07-24 | 2009-01-29 | Corning Cable Systems Llc | Multi-port accumulator for radio-over-fiber (rof) wireless picocellular systems |
| CN101814957A (en) * | 2010-03-09 | 2010-08-25 | 庞文凤 | WiFi (Wireless Fidelity) optical fiber radio central control system |
-
2011
- 2011-01-26 CN CN2011100281618A patent/CN102148644A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101272296A (en) * | 2007-03-20 | 2008-09-24 | 友劲科技股份有限公司 | Multi-module wireless network device, system and method |
| WO2009014710A1 (en) * | 2007-07-24 | 2009-01-29 | Corning Cable Systems Llc | Multi-port accumulator for radio-over-fiber (rof) wireless picocellular systems |
| CN101814957A (en) * | 2010-03-09 | 2010-08-25 | 庞文凤 | WiFi (Wireless Fidelity) optical fiber radio central control system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664681A (en) * | 2012-04-16 | 2012-09-12 | 广州飞瑞敖电子科技有限公司 | Radio-over-fiber switching system |
| CN104320783A (en) * | 2014-06-16 | 2015-01-28 | 深圳海联讯科技股份有限公司 | ROF radio frequency switching system and radio frequency switching method |
| CN114448884A (en) * | 2022-03-02 | 2022-05-06 | 深圳市友华通信技术有限公司 | Routing device, power calibration method of routing device and storage medium |
| CN114448884B (en) * | 2022-03-02 | 2023-10-20 | 深圳市友华通信技术有限公司 | Routing equipment, power calibration method of routing equipment and storage medium |
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Application publication date: 20110810 |