CN1711720A

CN1711720A - Wireless communication system

Info

Publication number: CN1711720A
Application number: CN 200380103352
Authority: CN
Inventors: 内海邦昭; 山本浩明; 增田浩一; 新保努武; 中曾麻理子; 笹井裕之
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2002-10-17
Filing date: 2003-10-17
Publication date: 2005-12-21

Abstract

A SW (70) receives an Ethernet(R) signal from an outside of areas E and F. The SW (70) selects and outputs the obtained Ethernet(R) signal to any one of APs (91a to 91e) in accordance with a network structure managed by the SW (70). The AP (91 a to 91e) converts the Ethernet(R) signal to an electrical signal type wireless LAN signal, which is in turn output to a main station (10). The main station (10) frequency-multiplexes the signal output from each of the APs (91a to 91e), and converts the signal to an optical signal, which is in turn output to sub-stations (20a and 20b) The sub-station (20a and 20b) transmits the signal transmitted from the main station (10) to a terminal in the form of a wireless radio wave. Thereby, when a plurality of communication areas are present, the accommodation capacity of an AP can be effectively utilized in each communication area.

Description

Wireless communication system

Technical field

The present invention relates to a kind of wireless communication system.More specifically, the present invention relates to a kind of allow the to be present in wireless communication terminal of local zone and the system that the network beyond the local zone communicates.

Background technology

Traditional, general WLAN (wireless local area network) (LAN) system in Nikkei business publication company " the Nikkei communication " of distribution on September 2nd, 2002 (the 89th page discloses in Fig. 1-2).

Figure 39 is a calcspar, shows the exemplary structure of traditional Wireless LAN system.Wireless LAN system has two communication zone A and B, SW70, cable 80a to 80e, access point (hereinafter to be referred as AP) 90a to 90e, and terminal A and B.And Wireless LAN system is connected to SW70, to be connected to the external network (not shown).

SW70 will forward each of AP90a to 90e to from Ethernet (R) signal that external network is input to Wireless LAN system.The cable 80a to 80e that for example is Ethernet (R) twisted-pair cable is connected to AP90a to 90e with SW70.AP90a to 90e utilizes WLAN signal and terminal A or B to communicate.Terminal A and B are personal computer or the PDA (personal digital assistant) with WLAN interface.

Zone A is the zone that AP90a and 90b provide service.Area B is AP90c, and 90d and 90e provide the coverage.Attention: the WLAN signal can not arrive another from one of them of regional A and B.

Below, will the operation of Wireless LAN system be described.

At first, with the communication of describing between the terminal B of the terminal A of regional A and area B.Suppose that terminal A is connected to AP90b, and terminal B is connected to AP90e here.

Terminal A is transmitted into AP90b with the form of radio wave with the WLAN signal.In response to this, AP90b receives the WLAN signal of radio wave type.Next, AP90b is Ethernet (R) signal with the WLAN conversion of signals that receives, and transmits the signal that produced to SW70 by cable 80b.

SW70 stores the network configuration of regional A and B.SW70 sends Ethernet (R) signal of reception to AP90e according to the network configuration of being stored by cable 80e.Ethernet (R) conversion of signals that AP90e will send from SW70 is a radio wave type WLAN signal, and it then is sent to terminal B.So, the radio wave type WLAN signal incoming terminal B that launches by terminal A.Attention: the WLAN signal is to be transmitted into terminal A's with opposite as mentioned above mode from terminal B.

Next, will communicating by letter of terminal A and external network be described.Terminal A is transmitted into AP90b with radio wave type WLAN signal.In response to this, AP90b receives the WLAN signal.Next, AP is Ethernet (R) signal with the radio wave type WLAN conversion of signals that receives, and next it is outputed to SW70.SW70 will output to external network from Ethernet (R) signal that AP90b obtains.Attention: be sent to terminal A with opposite direction from the signal of external network input.

Here, regional A has two AP, and area B has three AP.Can hold ten terminals if suppose single AP, 20 terminals can be carried out above-described communication simultaneously at regional A so, and 30 terminals can be carried out above-described communication simultaneously in area B.Attention: when AP held a plurality of terminal, AP launched/receives signal from each terminal in the mode of time division multiplexing.

Attention: just as used herein, carrying capacity refers to the terminal quantity in the system design.In other words, surpass carrying capacity even be connected to the quantity of the terminal of AP, this does not also mean that terminal no longer can executive communication, but only reduces the quantity that the unit interval can be launched into the signal of each terminal.

Disclosure of the Invention

As mentioned above, in the routine configuration, the terminal accommodating ability of regional A is 20, and the terminal accommodating ability of area B is 30.Therefore, when regional A has 20 terminals and area B and has 30 terminals, be the highest at this regional communication efficiency.

Yet, just in case for example the WLAN service is in the public institute of raising, being different from office, the quantity of the terminal in each zone always changes.Therefore.The quantity that is present in regional A and the B terminal in each seldom equals its carrying capacity.Terminal greater than the quantity of carrying capacity concentrates on a zone probably, and the terminal that is less than the quantity of carrying capacity far away is present in another zone.More particularly, for example, regional A has 40 terminals, and area B only has ten terminals.Therefore in this case, though five AP altogether are provided, total carrying capacity is 50, descends to heavens at the communication quality of regional A.Like this, in the routine configuration, the service efficiency of AP may be reduced.

In addition, in traditional Wireless LAN system, the connection between terminal and the AP is fixed.Therefore, when a terminal when regional A moves to area B, the user of terminal has to whenever terminal moves to another stylish connection of setting up to AP in zone from a zone, unless roaming function is provided between AP.

In addition, in the Wireless LAN system that uses for the public place, AP often is placed on the higher position, such as ceiling or the like.Therefore, in traditional Wireless LAN system, installation and maintenance AP is pretty troublesome.

In addition, in traditional Wireless LAN system, regional A and B are connected to the network switch via cable.Therefore, be separated by hundreds of meters the time when regional A and B and the network switch, the network switch can not transmit signals to each zone.

Therefore, the object of the present invention is to provide a kind of wireless communication system, wherein, when having a plurality of communication zone, the carrying capacity of the AP in each communication zone can be effectively utilized.

Another target of the present invention is to provide a kind of wireless communication system, wherein, even be moved when terminal, and the AP that therefore is connected to the there is when being changed, and the user need not set up the connection between terminal and the AP.

Another object of the present invention is to provide a kind of wireless communication system, wherein is easy to installation and maintenance AP.

Another object of the present invention is to provide a kind of wireless communication system, wherein, even when above-mentioned a plurality of zones when the network switch has a segment distance, the communication between the network switch and each zone can be done.

First invention is a kind of allow the to be present in wireless communication terminal of local zone and system that the network beyond the local zone communicates, this system comprises: a plurality of substations, be used for forming in the local zone respectively wireless-communication-capable area separately, and the radio communication of the wireless communication terminal in execution and each corresponding wireless-communication-capable area; One or more access trunkings, be used for to be input to from the outside, local zone the signal form of conversion of signals for using of inside, local zone, and will output to the signal form of conversion of signals for using of outside, local zone from inside, local zone for the outside, local zone for the local zone; And a main website that between substation and access trunking, is provided with, main website comprises therein: management devices, be used for management under a certain state, and insert the communication route of trunking from each, so that the communication route can be set up to each substation; And choice device, be used to select the signal of outside input and the communication route of managing according to management devices from the local zone, it is outputed to corresponding substation, and wherein the form of this signal inserts in the trunking at each and is converted, and is imported into the local zone.

Second invention is the invention that is subordinated to first invention, and choice device further comprises therein: one or more separators corresponding to each access trunking; And a plurality of switches corresponding to each substation, each separator will be input to the Signal Separation of local zone, and it is outputed to all switches, wherein the form of this signal is converted in inserting trunking, and each switch is exchanged, to determine being output to corresponding substation from which signal of separator output based on the communication route of being managed by management devices.

The 3rd invention is the invention that is subordinated to second invention, therein, each inserts trunking and utilizes different frequency, the signal form of conversion of signals for using for the local zone of local zone will be input to, choice device further comprises a plurality of multiplex machines corresponding to each switch, and each multiplex machine will carry out frequency multiplex from the signal of corresponding device thereof output, be input to the multiplex signal of local zone with generation, and export this multiplex signal to corresponding substation.

In the 4th invention, separator comprises a coupler, be used for individual signals is separated into a plurality of signals, and multiplex machine comprises the coupler that is used for the synthetic individual signals of a plurality of sets of signals.

The 5th invention is first invention that further is included in the network switch that is provided with between the network that inserts trunking and outside, local zone, the network switch is managed each and is inserted trunking and be present in connection status between the wireless communication terminal of local zone therein, specify the wireless communication terminal that is present in the local zone with reference to the signal that is input to the network switch, and, the signal that is input to the network switch is outputed to the access trunking of the wireless communication terminal of appointment based on connection status.

The 6th invention is the 5th invention that signal that the wireless communication terminal that is present in the local zone will be transmitted into another wireless communication terminal that is present in the local zone is transmitted into the substation of the communication zone under the wireless communication terminal, the signal that is transmitted into another wireless communication terminal is imported into the access trunking by substation and main website, in inserting trunking, be converted into the signal that uses for the outside of local zone, and be output to the network switch, and the network switch is specified another wireless communication terminal that is present in the local zone with reference to the signal that its form has been converted in inserting trunking, and, the signal that is input to the network switch is outputed to the access trunking of the wireless communication terminal of appointment based on connection status.

The 7th invention is each substation reception therein outputs to the signal of outside, local zone from inside, local zone first invention, this signal is launched from wireless communication terminal, and export this signal to main website, main website output outputs to the signal of outside, local zone from inside, local zone, this signal is output to the access trunking from the substation, insert the signal that trunking will output to the outside, local zone from inside, local zone, be signal form from the conversion of signals of main website output, and the signal of being changed is outputed to the outside, local zone for the outside use in local zone.

The 8th invention is that main website further comprises the 7th invention with lower member: a plurality of main website signal receiving devices corresponding to each substation are used to receive the signal that outputs to the outside, local zone from inside, local zone, from the signal of each station output; And a main website composite set, being used for and will outputing to the signal of outside, local zone from inside, local zone, the signal that is received by a plurality of main websites signal receiving device makes up, and exports this composite signal to inserting trunking.

The 9th invention is that the access trunking further comprises the 7th invention with lower member: intensity detecting device is used to detect the intensity from the signal of main website emission; And request unit, be used for when the intensity of the signal of launching from main website is lower than predetermined value, the request main website will be transmitted into the handshaking that inserts trunking and be another signal, this intensity is detected by intensity detecting device, when receiving signal from two or more substations with content identical with being transmitted into the access trunking from the request existence of request unit and main website, replace positive output to the signal that inserts trunking, main website will output to from the signal of one of them output of two or more substations and be different from the substation of positive output signal to the substation of inserting trunking.

The tenth invention is that each substation further comprises the 7th invention of a cross-talk cancellation element therein, be used for based on the signal that will import the local zone, generation has and will output to from inside, local zone the signal of outside, local zone owing to will be input to the signal that the signal same intensity of cross-talk appears in the influence of the signal of local zone, and be inverted signal, and inverted signal is added in the cross-talk with this intensity.

The 11 invention is that the cross-talk cancellation element comprises the tenth invention with lower member therein: first coupler section, a part that is used to separate the signal that is input to the local zone; And second coupler section, be used for and make up by first coupler section signal section that is input to the local zone that separates and the signal that outputs to the outside, local zone from inside, local zone, when separation is input to the signal of local zone, first coupler section will output to 90 ° of the phase changes of the signal of second coupler, and when combination during two signals, second coupler section will be input to 90 ° of the phase changes of the signal of local zone from this of first coupler section output.

The 12 invention is wherein in each substation, be used for to output to the signal of outside, local zone from inside, local zone, output to the signal transmitting/receiving system of main website and be used for and will be input to the signal of local zone from the signal of wireless communication terminal output, the signal transmitting/receiving system that is transmitted into wireless communication terminal from the signal of main website output is accommodated in the 7th invention the shell of separation separately.

The 13 invention be therein main website and each substation by first inventing that optical transmission line is connected, main website further comprises optical signal conversion apparatus, the conversion of signals that is used for being selected by choice device is a light signal, each substation will be converted to the signal of telecommunication of the form of using for the local zone from the light signal of main website output, and launch this with the signal of telecommunication of the radio wave form wireless communication terminal in the corresponding wireless-communication-capable area.

The 14 invention is that main website further comprises the 13 invention of main website frequency conversion apparatus therein, the frequency inverted that is used for the signal that will be selected by choice device is an intermediate frequency, and the conversion of signals that optical signal conversion apparatus will carry out frequency inverted by the main website frequency conversion apparatus is a light signal.

The 15 invention is that the substation further comprises the 14 invention of substation frequency conversion apparatus therein, the frequency that is used for the electrical signal converted of the form that will use for the local zone is converted to frequency when inserting trunking and exported the signal of telecommunication from intermediate frequency, and the signal that is carried out frequency inverted by the substation frequency conversion apparatus is launched into wireless communication terminal in the corresponding wireless-communication-capable area with the form of radio wave.

The 16 invention is that main website further comprises the 13 invention of main website frequency conversion apparatus therein, be used for to be input to the signal of local zone, a kind of has been intermediate frequency by each frequency inverted that inserts the signal form of trunking conversion, and its form that choice device is selected to be input to the local zone inserts the signal that trunking has carried out conversion and carried out frequency inverted by the main website frequency conversion apparatus by each.

The 17 invention is that each inserts switching signal that trunking will be input to the local zone outputs to main website as the signal with first intermediate frequency the 13 invention therein, main website further comprises the main website frequency conversion apparatus, be used for to be input to the signal of local zone, to second intermediate frequency, and its form that choice device is selected to be input to the local zone inserts the signal that trunking has carried out conversion and carried out frequency inverted by the main website frequency conversion apparatus by each from each frequency inverted of signal that inserts trunking output.

The 18 invention is to connect the 13 invention that the optical transmission line of each substation and main website has the length that is equal to each other basically therein.

The 19 invention is that main website is invented by optical transmission line connected first with each substation therein, main website further comprises optical signal conversion apparatus, be used for to be input to the signal of local zone, a kind of signal form that inserts the trunking conversion by each, be converted to light signal, and choice device, select and output by the light signal of optical signal conversion apparatus conversion to the substation.

The 20 invention is that wherein main website further comprises first invention of a plurality of signal receiving devices corresponding to each substation, a plurality of signal receiving devices are used to receive all signals from each access trunking output, and choice device comprises: a plurality of separators corresponding to each substation; And a plurality of selection/output devices that between each substation and each separator, are provided with, separator will be inserts all Signal Separation that are input to local zone trunking output and that received by each signal receiving device from each and becomes to be input to be used for the signal that each inserts the local zone of trunking, each selection/output device is based on the communication route of being managed by management devices, will output to corresponding substation being input to the signal that is output to corresponding substation in the middle of the signal that has been separated by corresponding separator of local zone.

The 21 invention is that wherein choice device comprises the first following invention: a plurality of signal receiving devices corresponding to each substation; And a plurality ofly between each substation and each signal receiving device, selection/output device is set, each signal receiving device is based on the communication route of being managed by management devices, only be received in the middle of the signal that is input to the local zone of each access trunking output, the signal that is input to the local zone of corresponding substation will be launched into, and the signal that is input to the local zone that selection/output device will have been received by each signal receiving device is transmitted into each corresponding substation.

The 22 invention is wherein to be present in first invention that the wireless communication terminal of local zone comprises communication beginning request unit, this communication beginning request unit is used to ask to begin to communicate via the access trunking of expectation and the substation of the communication zone under the wireless communication terminal, communication begins request and arrives main website via the substation, main website comprises: the communication request signal receiving system, and the communication that is used to receive from the emission of communication beginning request unit begins request; And the communication starting apparatus, be used for beginning request based on the communication that receives by the communication request signal receiving system, begin communication via access trunking by the substation expectation.

The 23 invention is wherein to work as predetermined a period of time or more time, and the substation does not transmit signals to when inserting trunking, and choice device is not selected to output to first invention of substation by the signal that inserts trunking output or with it.

The 24 invention is to be used to allow to be present in the wireless communication terminal of local zone and the system that the network beyond the local zone communicates, this system comprises: a plurality of substations, be used for forming respectively each wireless-communication-capable area, and carry out radio communication with wireless communication terminal in each corresponding wireless-communication-capable area in the local zone; One or more access trunkings, be used for to be input to from the outside, local zone the signal form of conversion of signals for using of inside, local zone, and inside, local zone outputed to the signal form of conversion of signals for using of outside, local zone for the outside, local zone for the local zone; And the main website that between substation and access trunking, is provided with, therein:

Main website comprises choice device, is used to select to be input to the signal of local zone, from the signal of the outside input in local zone and a kind of signal form of having changed during inserting trunking and export it to all substations.

The 25 invention is the 24 invention that wherein a plurality of access trunkings are connected to main website, main website further comprises multiplex machine, be used for that frequency multiplex is input to the signal of local zone and from inserting the signal of trunking output, and it is selected and output to all substations to carry out the multiplexed signal that is input to the local zone by multiplex machine.

The 26 invention is further to be included in to insert the 24 invention that the network switch is set between trunking and the local zone network in addition, the network switch is managed each and is inserted trunking and be present in connection status between the wireless communication terminal of local zone therein, specify the wireless communication terminal that is present in the zone, ground with reference to the signal that is input to the network switch, and, the signal that is input to the network switch is outputed to the access trunking that is connected with the specific radio communication terminal based on this connection status.

The 27 invention is the 26 invention that signal that the wireless communication terminal that wherein is present in the local zone will be launched into another wireless communication terminal that is present in the local zone is transmitted into the substation of the communication zone under the wireless communication terminal, the signal that is launched into another wireless communication terminal is transfused to the access trunking via substation and main website, in inserting trunking, be converted into for the outside signal that uses in local zone, and be output to the network switch, the network switch is specified another wireless communication terminal that is present in the local zone with reference to the signal that its form has been converted in inserting trunking, and, the signal that is input to the network switch is outputed to the access trunking that is connected with the specific radio communication terminal based on this connection status.

The 28 invention is that wherein each substation receives the signal that outputs to the outside, local zone from inside, local zone, signal from the wireless communication terminal emission, and output signal is to the 24 invention of main website, main website output outputs to the signal of outside, local zone from inside, local zone, the signal of exporting from the substation is to the signal that inserts trunking, insert trunking and will output to the signal of outside, local zone from inside, local zone, be signal form from the conversion of signals of main website output, and the signal of output conversion is to the outside, local zone for the outside use in local zone.

The 29 invention is that wherein main website further comprises the 28 following invention: a plurality of main website signal receiving devices corresponding to each substation, be used to receive the signal that outputs to the outside, local zone from inside, local zone, from the signal of each substation output; And the main website composite set, be used to make up the signal that outputs to the outside, local zone from inside, local zone, by the signal of a plurality of main websites signal receiving device reception, and the output composite signal is to inserting trunking.

The 30 invention is wherein to insert trunking further to comprise the 28 following invention: intensity detecting device is used to detect the intensity from the signal of main website emission; And request unit, be used for intensity when the signal of launching from main website, when the intensity that is detected by intensity detecting device is lower than predetermined value, the request main website will be launched into the handshaking that inserts trunking and arrive another signal, and when receive from the request existence of request unit and main website be transmitted into from two or more substations insert trunking have the signal of identical content the time, replace positive output to the signal that inserts trunking, main website output is from the signal of one of them output of two or more substations, and this substation is different from positive output signal to the substation of inserting trunking.

The 31 invention is that wherein each substation further comprises the 28 invention of cross-talk cancellation element, the cross-talk cancellation element is used for based on the signal that is input to the local zone, generation have with owing to be input to the effect of signals of local zone at the signal that outputs to the cross-talk same intensity that exists the signal of outside, local zone from inside, local zone, and inversion has the signal of this intensity, and adds this inverted signal to cross-talk.

The 32 invention is that wherein the cross-talk cancellation element comprises the 31 following invention, first coupler section, the part that is used to separate the signal that is input to the local zone; And second coupler section, the part that is used for the signal that is input to the local zone that will be separated by first coupler section makes up with the signal that outputs to the outside, local zone from inside, local zone, when separation is input to the signal of local zone, first coupler section will output to 90 ° of the phase changes of the signal of second coupler, and when combination during two signals, second coupler section will be from 90 ° of the phase changes of the signal that is input to the local zone of first coupler section output.

The 33 invention is wherein in each substation, be used to export the signal that outputs to the outside, local zone from inside, local zone, the signal transmitting/receiving system from the signal of wireless communication terminal output to main website and be used to launch the signal that is input to the local zone, the signal transmitting/receiving system from the signal of main website output to wireless communication terminal are accommodated in the 28 invention the shell of each self-separation.

The 34 invention be wherein main website and each substation via connected the 24 invention of optical transmission line, main website comprises that further being used for to be the optical signal conversion apparatus of light signal by the selected conversion of signals of choice device, each substation will be converted to the signal of telecommunication that has for the form of local zone use from the light signal of main website output, and launch this with the signal of telecommunication of the radio wave form wireless communication terminal in the corresponding wireless-communication-capable area.

The 35 invention is that wherein main website comprises that further the frequency inverted that is used for the signal that will be selected by choice device is that the main website frequency conversion apparatus of intermediate frequency and the conversion of signals that will carry out frequency inverted by the main website frequency conversion apparatus are the 34 invention of the optical signal conversion apparatus of light signal.

The 36 invention is that wherein the substation further comprises the 35 invention of substation frequency conversion apparatus, the frequency that is used for the electrical signal converted of the form that will use for the local zone is converted to frequency when inserting trunking and having exported the signal of telecommunication from intermediate frequency, and the signal that is carried out frequency inverted by the substation frequency conversion apparatus is transmitted into wireless communication terminal in the corresponding wireless-communication-capable area with the form ripple of radio wave.

The 37 invention is that wherein main website further comprises the 34 invention of main website frequency conversion apparatus, be used for to be input to the signal of local zone, a kind of has been intermediate frequency by each frequency inverted that inserts the signal form of trunking conversion, choice device selects to be imported into the signal of local zone, and its form inserts trunking by each and carried out conversion and carried out frequency inverted by the main website frequency conversion apparatus.

The 38 invention is that wherein each inserts switching signal that trunking will be input to the local zone outputs to main website as the signal with first intermediate frequency the 34 invention, main website further comprises the main website frequency conversion apparatus, be used for to be input to the signal of local zone, the frequency inverted that inserts the signal of trunking output from each is second intermediate frequency, and choice device selects to be imported into the signal of local zone, and its form inserts trunking by each and carried out conversion and carried out frequency inverted by the main website frequency conversion apparatus.

The 39 invention is wherein to connect the 34 invention that the optical transmission line of each substation and main website has the length that is substantially equal to one another.

The 40 invention is wherein the 24 invention that is connected via optical transmission line of main website and each substation, main website further comprises optical signal conversion apparatus, be used for to be input to the signal of local zone, a kind of has been light signal by each formal transformation that inserts the signal of trunking conversion, and choice device, select and output by the light signal of optical signal conversion apparatus conversion to the substation.

The 41 invention is that wherein main website further comprises the 24 following invention: a plurality of signal receiving devices corresponding to each substation, and all that are used to receive from each access trunking output are input to the signal of local zone; And the sender unit that between each substation and each signal receiving device, is provided with, be used to launch insert trunking output from each and be imported into the signal of local zone to corresponding substation by each suitable all that signal receiving device received.

The 42 invention is arranged on the main website between a plurality of substations, be used for forming respectively each wireless-communication-capable area in the local zone, and in the radio communication of each wireless-communication-capable area execution with wireless communication terminal, and one or more access trunkings, be used to export the signal that will be input to inside, local zone from the outside, local zone, this main website comprises: management devices, the communication route is used to manage at a state and inserts the communication route of trunking, so that can be set to each substation from each; And choice device, be used for the communication route that basis is managed by management devices, select and export the signal that will be input to the local zone that has received by the access trunking.

The 43 invention is that a main website between a plurality of substations is set, be used for forming respectively each wireless-communication-capable area in the local zone, and in the radio communication of each wireless-communication-capable area execution with wireless communication terminal, and one or more access trunkings, be used to export the signal that will be input to inside, local zone from the outside, local zone, this main website comprises: signal receiving device is used to receive by inserting the signal that will be input to the local zone that trunking receives; And choice device, be used to select and export by inserting the signal that will be input to the local zone that trunking receives to all substations.

The 44 invention is the substation of using for wireless communication system, the substation forms wireless-communication-capable area in the local zone therein, and communicate with the wireless communication terminal that is present in the wireless-communication-capable area that forms by the substation, in this wireless communication system, the signal that is input to inside, local zone from the outside, local zone is converted into the signal form that uses for the local zone, and it is selected and output to corresponding substation, this substation comprises: signal receiving device, be used to be received in the central corresponding signal of the signal of selecting and exporting, the radio wave signal emitter, the signal that is used for being received by signal receiving device with the emission of the form of radio wave is to the corresponding wireless communication terminal that is present in wireless-communication-capable area.

The 45 invention is that the signal that wherein is input to inside, local zone from the outside, local zone is converted into the signal with the light signal form, and this light signal is selected and output, signal receiving device receives this 44 invention that is converted to the signal of light signal form, the substation comprises that further being used for received the conversion of signals that is received by signal is the electrical switching device of electrical signal form, the radio wave signal emitter with the emission of the form of radio wave by the signal of electrical switching device conversion to wireless communication terminal.

The 46 invention is that wherein wireless communication terminal is launched the 44 invention that outputs to the signal of outside, local zone from inside, local zone with the form of radio wave, this substation further comprises: the radio wave signal receiving system is used to receive the signal by the wireless communication terminal emission; And sender unit, be used to launch the signal that receives by the radio wave signal receiving system outside to the wireless-communication-capable area that forms by the substation.

The 47 invention is to comprise that further being used to change the signal that is received by the radio wave signal receiving system is the 46 invention of the light conversion device of light signal form, and sender unit emission therein is by the light signal of the optical signal conversion apparatus conversion outside to the wireless-communication-capable area that is formed by the substation.

The 48 invention is the 46 invention that further comprises the cross-talk cancellation element, the cross-talk cancellation element is used for based on the signal that is input to the local zone, generation have with owing to be input to the effect of signals of local zone at the signal that outputs to the cross-talk same intensity that exists the signal of outside, local zone from inside, local zone, and inversion has the signal of this intensity, and adds this inverted signal to cross-talk.

The 49 invention is that wherein the cross-talk cancellation element comprises the 48 following invention: first coupler section is used to separate the signal that a part is input to the local zone; And second coupler section, the part that is used for the signal that is input to the local zone that will be separated by first coupler section makes up with the signal that outputs to the outside, local zone from inside, local zone, when separation is input to the signal of local zone, first coupler section will output to 90 ° of the phase changes of the signal of second coupler section, and second coupler section, when combination during two signals, with from 90 ° of the phase changes of the signal that is input to the local zone of first coupler section output.

The 50 invention is that wherein signal receiving device and radio wave signal emitter are accommodated in first shell, and sender unit and radio wave signal receiving system are accommodated in the 46 invention in second shell.

According to the present invention, main website is based on the communication route of being managed by management devices, and output inserts the signal that trunking outputs to one or more substations from each.Therefore, each that the user's communications terminal can be from one or more zones inserts trunking received signal.

In addition, the main website frequency multiplex is from the signal of access trunking output, and the signal that transmission is produced is to each substation.Therefore, side by side be input to main website, also can transmit signal to the substation from inserting trunking even work as a plurality of signals.

In addition, each inserts the signal that trunking utilization frequency conversion each other is input to the local zone.Therefore, main website can need not the signal that frequency inverted comes frequency multiplex to obtain.

In addition, provide the network switch.Therefore, the signal of outside input can be selected and be outputed to each AP from the local zone.In other words, wireless communication system can be used to WLAN.

In addition, the network switch has and returns from the signal of inside, the local zone function to the local zone.Therefore, might finish communication between each communication terminal in the local zone.

In addition, in the present invention, the wireless communication terminal in the local zone can transmit signals to the network beyond the local zone.

In addition, main website has been equipped with the main website signal receiving device corresponding to each substation.Therefore, main website can be so that each received signal stands various processes respectively.Various processes comprise, for example diversity reception of carrying out in main website when from two or more substation emission same signals.

In addition, if main website receives and to have predetermined level or more during the signal of high level, insert trunking and can receive continuously and have the predetermined level or the signal of high level more.Therefore, the data delivery quality of wireless communication system is enhanced.

In addition, the cross-talk cancellation element extracts from the signal that will be input to the local zone of choice device output, and adjust the intensity and the phase place of the signal will be input to the local zone, add the signal that produced to the signal that outputs to the outside, local zone from inside, local zone that will launch from wireless communication terminal.Therefore, be input to the signal of local zone and the cross-talk that outputs to from inside, local zone between the signal of outside, local zone is reduced.

In addition, the cross-talk cancellation element utilizes coupler section to realize.Coupler section is need not the passive circuit that power supply is operated.Therefore, the power consumption of cross-talk cancellation element can be reduced.

In addition, the signal transmitting/receiving system is accommodated in the shell of each separation.Therefore, the cross-talk between each signal transmitting/receiving system can be reduced.

In addition, main website and substation are connected via optical transmission line.Therefore, main website and the substation distance about can the separation number km.

In addition, signal is launched into the substation with intermediate frequency from main website.Therefore, and when being launched with high frequency, signal compares, the transmission system part, and for example the frequency limitation of main website etc. is relaxed.As a result, wireless communication system can be with low-cost production.In addition, according to above-mentioned the 12 invention, signal is converted into intermediate frequency between choice device and optical signal conversion apparatus.Therefore, a plurality of signals can carry out frequency inverted together.

In addition, the signal with the intermediate frequency emission is converted into original frequency.Therefore, the substation can transmit signals to signal and receives eventually and carry.

In addition, signal is launched into the substation with intermediate frequency from main website.Therefore, and compare when signal is launched with high frequency, to the transmission system part, for example the frequency limitation of main website etc. is relaxed.As a result, wireless communication system can be produced with low cost.

In addition, signal is launched into the substation with intermediate frequency from main website.Therefore, and compare when signal is launched with high frequency, to the transmission system part, for example the frequency limitation of main website etc. is relaxed.As a result, wireless communication system can be produced with low cost.In addition, according to the 15 invention, insert trunking and main website and utilize intermediate-freuqncy signal to communicate.Therefore, the structure of cable or realization can be simplified.

In addition, optical transmission line has the length that is equal to each other basically.Therefore, the loss between main website and the substation is by equalization.

In addition, choice device selective light signal.Therefore, and compare when utilizing the signal of telecommunication carry out to select, cross-talk properties can be good.

In addition, separating transposition and selection/output device is provided with for each substation.Therefore, need not to revise another separator and choice device,, can provide additional substation by providing another component in addition from device and choice device.In addition, in main website, might avoid outputing to the interference between signals of substation.

In addition, there is not signal separated in main website.Therefore, can prevent signal intensity attenuation when signal is separated.

In addition, terminal comprises communication beginning request unit.Therefore, in response to the request of terminal, can make main website that the communication route is set.

In addition, not that the signal that is used predetermined a period of time or more time is automatically checked from what insert trunking.Therefore, do not have unnecessary signal to be output to the communication zone of substation, thereby make and to improve fail safe and reduce power consumption.

In addition, the main website emission inserts the signal of trunking reception to all substations from each.The user's communications terminal can be in all communication zone received signals.

In addition, the main website frequency multiplex is from the signal that inserts trunking, and the signal that output is produced is to each substation.Therefore, even when when inserting trunking and receive a plurality of signal simultaneously, main website can launch this signal to each substation.

According to another aspect of the present invention, provide the network switch.Therefore, might select and export the signal of outside input to each AP from the local zone.In other words, wireless communication system can be used to WLAN.

In addition, the network switch has and returns from the signal of inside, the local zone function to the local zone.Therefore, might realize communication between each communication terminal in the local zone.

In addition, main website is equipped with the main website signal receiving device corresponding to each substation.Therefore, main website can be so that each received signal stands various processes respectively.Various processes comprise, for example diversity reception of carrying out in main website when from two or more substation emission same signals.

In addition, the cross-talk cancellation element extracts from the signal that is input to the local zone of choice device output, and adjust the intensity and the phase place of the signal that is input to the local zone, the signal that interpolation is produced is to the signal that outputs to the outside, local zone from inside, local zone from the wireless communication terminal emission.Therefore, be input to the signal of local zone and the cross-talk that outputs to from inside, local zone between the signal of outside, local zone is reduced.

In addition, main website and substation are connected via optical transmission line.Therefore, the distance of km magnitude can be separated in main website and substation.

In addition, signal is launched into the substation with intermediate frequency from main website.Therefore, and compare when signal is launched with high frequency, to the transmission system part, for example the frequency limitation of main website etc. is relaxed.As a result, wireless communication system can be produced with low cost.In addition, according to above-mentioned the 28 invention, signal is converted into intermediate frequency between choice device and optical signal conversion apparatus.Therefore, a plurality of signals can carry out frequency inverted together.

In addition, the signal with the intermediate frequency emission is converted into original frequency.Therefore, the substation can transmit signals to reception signal terminal.

In addition, signal is launched into the substation with intermediate frequency from main website.Therefore, and compare when signal is launched with high frequency, to the transmission system part, for example the frequency limitation of main website etc. is relaxed.As a result, wireless communication system can be produced with low cost.In addition, according to the 31 invention, insert trunking and main website and utilize intermediate-freuqncy signal to communicate.Therefore, the structure of cable or realization can be simplified.

In addition, signal receiving device and selection/output device are provided with for each substation.Therefore, need not to revise another signal receiving device and choice device,, can provide additional substation by another group of signal receiving device and choice device are provided in addition.In addition, in main website, might avoid outputing to the interference between signals of substation.

In addition, main website is based on the communication route of being managed by management devices, and output inserts the signal that trunking outputs to one or more substations from each.Therefore, each that the user's communications terminal can be from one or more zones inserts trunking received signal.

According to another aspect of the present invention, main website is based on the communication route of being managed by management devices, and output inserts the signal that trunking outputs to one or more substations from each.Therefore, each that the user's communications terminal can be from one or more zones inserts trunking received signal.

In addition, the wireless communication terminal in the local zone can transmit signals to local zone network in addition.

The accompanying drawing summary

Fig. 1 is a block diagram, and the exemplary configured in one piece according to wireless communication system of the present invention is shown.

Fig. 2 is a block diagram, and the exemplary configuration of main website 10 is shown according to embodiments of the invention 1.

Fig. 3 is a block diagram, and the exemplary configuration of substation 20 is shown according to embodiments of the invention 1.

Fig. 4 is a block diagram, and another exemplary configuration of main website 10 is shown according to embodiments of the invention 1.

Fig. 5 is a block diagram, and another exemplary configuration of substation 20 is shown according to embodiments of the invention 1.

Fig. 6 (a) is a block diagram, and another exemplary configuration of substation 20 is shown according to embodiments of the invention 1.

Fig. 6 (b) is a block diagram, and another exemplary configuration of substation 20 is shown according to embodiments of the invention 1.

Fig. 6 (c) is a block diagram, and another exemplary configuration of substation 20 is shown according to embodiments of the invention 1.

Fig. 7 is a block diagram, and another exemplary configuration of substation 20 is shown according to embodiments of the invention 1.

Fig. 8 is a block diagram, and another exemplary configuration of substation 20 is shown according to embodiments of the invention 1.

Fig. 9 is a block diagram, and another exemplary configuration of substation 20 is shown according to embodiments of the invention 1.

Figure 10 is a block diagram, and another exemplary configuration of substation 20 is shown according to example 1 of the present invention.

Figure 11 is a block diagram, and another exemplary configuration of substation 20 is shown according to embodiments of the invention 1.

Figure 12 is a block diagram, and another exemplary configuration of substation 20 is shown according to embodiments of the invention 1.

Figure 13 is a block diagram, and the exemplary configuration of main website 10 is shown according to embodiments of the invention 2.

Figure 14 (a) is a block diagram, and the configuration of the processing section 121 that transmits that provides in main website 10 is shown according to embodiments of the invention 2.

Figure 14 (b) is a block diagram, and another exemplary configuration of main website 10 is shown according to embodiments of the invention 2.

Figure 14 (c) is a figure, and the exemplary configuration of the transmitting/receiving signal processing section of Figure 14 (b) is shown.

Figure 15 is a block diagram, and another exemplary configuration of main website 10 is shown according to embodiments of the invention 2.

Figure 16 is a block diagram, and the detailed configuration of optical transmission signal processing section 805 of the main website of Figure 15 is shown.

Figure 17 is a block diagram, and the exemplary configured in one piece according to a wireless communication system of embodiments of the invention 3 is shown.

Figure 18 is a block diagram, and the exemplary configuration of main website 10 is shown according to embodiments of the invention 3.

Figure 19 is a block diagram, and another exemplary configuration of main website 10 is shown according to embodiments of the invention 3.

Figure 20 is a block diagram, and another exemplary configuration of main website 10 is shown according to embodiments of the invention 3.

Figure 21 is a block diagram, and the exemplary configured in one piece according to a wireless communication system of embodiments of the invention 4 is shown.

Figure 22 is a block diagram, and the exemplary configuration of main website 35 is shown according to embodiments of the invention 4.

Figure 23 is a block diagram, and the exemplary configuration of main website 35 is shown according to embodiments of the invention 5.

Figure 24 is a figure, illustrates according to embodiments of the invention 5, and signal selecting part divides 155 configuration.

Figure 25 is a block diagram, and another exemplary configuration of main website 35 is shown according to embodiments of the invention 5.

Figure 26 is a block diagram, and another exemplary configuration of main website 35 is shown according to embodiments of the invention 5.

Figure 27 is a figure, and giving an example of area information is shown.

Figure 28 is a stream Cheng figure, illustrates according to the main website 35 of embodiments of the invention 5 and the operation of terminal.

Figure 29 is a block diagram, and the configuration of wireless signal optical transmission heart equipment is shown, and wherein AP and main website integrate, and uses for wireless communication system of the present invention.

Figure 30 is a block diagram, and the configuration of wireless signal optical transmission central apparatus is shown, and wherein the network switch, AP and main website integrate, and uses for wireless communication system of the present invention.

Figure 31 (a) is a block diagram, and the detailed configuration of wireless signal optical transmission central apparatus is shown, and wherein the network switch, AP and main website integrate, and uses for wireless communication system of the present invention.

Figure 31 (b) is a block diagram, and the detailed configuration of wireless signal optical transmission central apparatus is shown, the network switch wherein, and AP and main website integrate, and use for wireless communication system of the present invention.

Figure 32 is a block diagram, is illustrated in the wireless communication system of the present invention, and when main website 10 and substation 20 utilizes the light signal of the frequency band with IF signal to communicate, the configuration of main station optical signal radiating portion 102.

Figure 33 is a block diagram, is illustrated in the wireless communication system of the present invention, and when main website 10 and substation 20 utilizes the light signal of the frequency band with IF signal to communicate, the configuration of substation light signal receiving unit 201.

Figure 34 is a block diagram, illustrates to be input to before the transmission signals built-up section 101 of Fig. 2 at once, is used for conversion of signals is the configuration as the down-conversion part 600 of the electrical signal types WLAN signal of IF signal.

Figure 35 is a block diagram, illustrate when signal with the form of IF signal when AP91 launches, be used for signal frequency being converted to the configuration of the down-conversion part 600 of the 2nd IF signal in main website 10.

Figure 36 is a block diagram, and circulator 700a wherein is used to the coupling part of main website 10 and AP91 to 700e the configuration of main website 10 is shown.

Figure 37 is a block diagram, and the configuration of wireless communication system is shown, and wherein substation 20a utilizes WDM coupler 710a to be connected with cascade structure with 710b with 20b.

Figure 38 is a block diagram, and the configuration of wireless communication system is shown, and wherein substation 20a utilizes WDM coupler 720a to be connected with loop configuration with 720b with 20b.

Figure 39 is a block diagram, and the configured in one piece of traditional Wireless LAN system is shown.

Realize best mode of the present invention

(embodiment 1)

Below, the overall structure according to the wireless communication system of embodiments of the invention 1 will be described with reference to the drawings.Fig. 1 is a block diagram, and the exemplary configured in one piece of wireless communication system is shown.

The wireless communication system of embodiment 1 has zone C and D (in the claims, each is called as a wireless-communication-capable area zone C and D, and be called as the local zone together), and comprise main website 10,

substation

20a and 20b, optical fiber transmission path 50a and 50b, the network switch (in Fig. 1, being abbreviated as SW) 70, access point (being abbreviated as AP in Fig. 1) 91a is to 91e, and terminal C and D.Attention: terminal C and D are the representational terminals that is present in each zone.Therefore, except that terminal C and D, many terminals are present in actual zone C and D.

Zone C is that wherein substation 20a provides the zone of service, and more particularly, from the interior zone of arrival distance of the signal of substation a emission.Region D is that wherein substation 20b provides the zone of service, and more particularly, from the interior zone of arrival distance of the signal of substation 20b emission.The network configuration of SW70 management WLAN, and Ethernet (R) handshaking that will be input to wireless communication system from external network to each AP91a to 91e.Ethernet (R) conversion of signals that AP91a will import from SW70 to 91e be the WLAN signal with electrical signal form, and it then is output to main website 10.AP91a will be Ethernet (R) signal from the WLAN conversion of signals with electrical signal form of main website 10 outputs also to 91e, and it then is output to SW70.AP91a has and the substantially the same structure of using for general WLAN of AP to 91e.Replace the radio wave form at the WLAN signal with electrical signal form and be output on the cable on this point, AP91a is different from general WLAN AP to 91e.

The electrical signal types WLAN conversion of signals that main website 10 will export from AP91a to 91e is optical signal type WLAN signal (hereinafter, optical signal type WLAN signal is called as light signal).Main website 10 also will be converted to electrical signal types WLAN signal from the light signal of

substation

20a and

20b output.Substation

20a and 20b communicate via radio wave and terminal C and D.More particularly,

substation

20a and 20b will be converted to electrical signal types WLAN signal from the light signal of main website 10 outputs, arrive terminal C and D with radio signal form emission electrical signal types WLAN

signal then.Substation

20a and 20b also receive from terminal C and D emitted radio signal type WLAN signal and are converted into electrical signal types WLAN signal, are light signal with electrical signal types WLAN conversion of signals in addition, and it then is launched into main website 10.Terminal C and D are computer or the PDA with WLAN interface.

To describe AP91a in detail to 91e here.AP91a to 91e separately trunking traffic to a plurality of terminals.In this case, when AP91a when 91e has to transmit signals to a plurality of terminal respectively, the signal that is launched is assigned with on time orientation and outputs to main website 10 then.In addition, similarly, AP91a distributes on time orientation from the signal of a plurality of terminals emission to 91e, exports signal that this produced then to SW70.

Equally, AP91a utilizes the channel with different frequency to produce the WLAN signal to 91e, so that avoid the interference between each output signal.Attention: had by traditional AP equally to the function of on time orientation, distributing the function of output signal and utilizing a plurality of channels to produce the WLAN signal that 91e has by AP91a.

And then, will describe main website 10 in detail.Fig. 2 is a block diagram, and the detailed configuration of main website 10 is shown.Main website 10 comprises transmission signals built-up section 101, main station optical signal radiating portion 102, beam split part 103, received signal processing section 111, main station optical signal receiving unit 112 and light built-up section 113.

Transmission signals built-up section 101 receives electrical signal types WLAN signal from AP91a to 91e.Each input signal of transmission signals built-up section 101 frequency multiplexes is to produce composite signal.The conversion of signals that main station optical signal radiating portion 102 will be produced by transmission signals built-up section 101 is a light signal.The light signal that beam split part 103 is separated by 102 outputs of main station optical signal radiating portion, and the signal that output is produced is to substation 20a and 20b.Attention: in embodiment 1,

substation

20a and 20b receive the light signal with identical information.

Light built-up section 113 is connected to

substation

20a and 20b, and frequency multiplex and the light signal of combination by

substation

20a and 20b output.This utilizes optical coupler or WDM (wavelength division multiplexing) coupler to realize.When light built-up section 113 utilizes optical coupler to realize, advantageously, can produce light built-up section 113 economically.When light built-up section 113 utilizes the WDM coupler to realize, advantageously, can prevent that beat frequency from disturbing.

Main station optical signal receiving unit 112 will be converted to electrical signal types WLAN signal by the light signal of light built-up section 113 outputs.Received signal processing section 111 will be some single frequency bands from the Signal Separation of main station optical signal receiving unit 112 inputs, and the signal of output separation respectively arrives the AP91a of expectation to 91e.

And then,

substation

20a and 20b will be described.Fig. 3 is a block diagram, and the detailed configuration of

substation

20a and 20b is

shown.Substation

20a and 20b comprise substation light signal receiving unit 201, wireless signal transmission part 202, signal emission/reception separating part 204, signal transmit/receive antenna part 205, substation light signal radiating portion 211 and wireless signal receiving unit 212.

Substation light signal receiving unit 201 will be converted to electrical signal types WLAN signal by the light signal that optical fiber transmission path 50a and 50b launch from main website 10.Wireless signal transmission part 202 is amplified from the signal of substation light signal receiving unit 201 outputs.Signal emission/reception separating part 204 will output to signal transmit/receive antenna part 205 from the signal of wireless signal transmission part 202, and output from the signal of signal transmit/receive antenna part 205 to wireless signal receiving unit 212.Signal transmit/receive antenna part 205 receives from the radio wave type WLAN signal of terminal C and D emission, and with the radio wave form, and the electrical signal types WLAN signal that emission is exported from signal emission/reception separating part 204 is to terminal C and D.Attention: signal transmit/receive antenna part 205 need have the function that the WLAN signal of frequency multiplex is launched as radio wave.In other words, signal transmit/receive antenna part 205 need have and transmits and receives the function with a plurality of frequencies simultaneously.This is because the signal of output carries out frequency multiplex by main website 10 from AP91a to 91e.

Separating part 204 outputs will be launched/receive to wireless signal receiving unit 212 from signal conversion of signals is the signal that is suitable for substation light signal radiating portion 211.The signal of conversion is output to substation light signal radiating portion 211.Substation light signal radiating portion 211 will be from the electrical signal types WLAN conversion of signals light signal of wireless signal receiving unit 212 outputs, and it then is launched into main website 10.

So the operation of the wireless communication system of structure will be described.

Hereinafter, data of description is transmitted into the situation of terminal C from external network.Ethernet (R) signal is input to SW70 from external network.Here, SW70 stores the network configuration of aforesaid WLAN.Therefore, the SW70 output destination of determining network signal with reference to Ethernet (R) signal that receives and network configuration.Here, SW70 is assumed that output Ethernet (R) signal to AP91a, and, hereinafter, will proceed to describe.

AP91a is the electrical signal types WLAN signal with predetermined channel frequency with Ethernet (R) conversion of signals that receives, and it then outputs to main website 10 by cable.Attention: predetermined channel is to have to be different from the channel of AP91b to the employed frequency of 91e.AP91a is to be prevented from disturbing each other by the signal that AP exports to the reason that 91e has different frequency.

Attention: up to AP91a be with Ethernet (R) conversion of signals electrical signal types WLAN signal operation and traditional wireless communication system with.

Next, main website 10 utilizes transmission signals built-up section 101 to receive electrical signal types WLAN signal.Transmission signals built-up section 101 also receives electrical signal types WLAN signal from AP91b to 91e.After this, transmission signals built-up section 101 will make up from AP91a electrical signal types WLAN that receives and the electrical signal types WLAN signal that receives from AP91b to 91e by frequency multiplex, and the signal that output is produced is to main station optical signal radiating portion 102.It is light signal that main station optical signal radiating portion 102 reception composite signals are changed this composite signal then, and it then is output to beam split part 103.Beam split part 103 is separated the light signal and the emission separation signal that receive and is arrived

substation

20a and 20b.

Substation 20a utilizes substation light signal receiving unit 201 receiving optical signals.Substation light signal receiving unit 201 is converted to electrical signal types WLAN signal with the light signal that receives, and it then is output to wireless signal transmission part 202.Wireless signal transmission part 202 receives electrical signal types WLAN signal, amplifies the electrical signal types WLAN signal that receives then, and the signal that next output is produced is to signal emission/reception separating part 204.And then, signal emission/reception separating part 204 will output to signal transmit/receive antenna part 205 from the signal of wireless signal transmission part 202 outputs.Next, signal transmit/receive antenna part 205 is with the form of radio wave, and the electrical signal types WLAN signal that emission obtains is to terminal C.

Here, the radio wave type WLAN signal of exporting from signal emission/reception wireless portion 205 utilizes frequency multiplex and time division multiplexing, carries out multiplexed with signal that is launched into terminal C and the signal that is launched into other-end.Therefore, terminal c only receives desired signal selectively.Thereby terminal C can receive from the data of external network emission.So, the transfer of data from external network to terminal C is described.

Next, will the situation that be launched into external network from the data of terminal C output be described.Terminal C is with the form of radio wave, and emission WLAN signal is to substation 20a.In response to this, substation 20a utilizes signal transmit/receive antenna part 205 to receive radio wave type WLAN signal.Signal transmit/receive antenna part 205 will output to signal emission/reception separating part 204 as the radio wave type WLAN signal that is received of electrical signal types WLAN signal.And then, the electrical signal types WLAN signal of signal emission/reception separating part 204 output acquisitions is to wireless signal receiving unit 212.Next, wireless signal receiving unit 212 is the signal that is suitable for substation light signal radiating portion 211 with the electrical signal types WLAN conversion of signals that obtains, and the signal that output is produced is to substation light signal radiating portion 211.Secondly, substation light signal radiating portion 211 will be a light signal from the electrical signal types WLAN conversion of signals of wireless signal receiving unit 212 outputs, and it then is launched into main website 10.

Main website 10 utilizes light built-up section 113 receiving optical signals.Light built-up section 113 will make up with the light signal of launching from another substation 20b from the light signal of substation 20a emission, and the signal that output is produced is to main station optical signal receiving unit 112.Secondly, main station optical signal receiving unit 112 will be converted to electrical signal types WLAN signal from the light signal that light built-up section 113 obtains, and it then is output to received signal processing section 111.In response to this, received signal processing section 111 output electrical signal types WLAN signals are to the AP91 that communicates by letter with terminal C.

The method of a kind of received signal processing section 111 output electrical signal types WLAN signals to AP will be described in detail here.

Received signal processing section 111 will be some single frequency bands from the Signal Separation of main station optical signal receiving unit 112 inputs, and the signal that output separates arrives the AP of each expectation.Thus, advantageously, may prevent that extra signal is imported into AP.

In order to realize these, in a certain method, the I/O port of main website 10 is fixed and distributes to each AP91.More particularly, the frequency that is used to each port is fixed in advance, and each port is connected to constant definite AP91.Therefore, determined uniquely based on the frequency of the electrical signal types WLAN signal of 111 outputs, addressed the above problem thus from the received signal processing section by its AP91 that electrical signal types WLAN signal is output.Attention: received signal processing section 111 can need not that frequency separation ground output received, and the electrical signal types WLAN signal of frequency multiplex is to each AP.In this case, each AP91 receives only the electrical signal types WLAN signal with the frequency that should be received by AP91 selectively.

Attention: easily change the frequency that is used to each AP91 in order to allow the user, which port transmission signals built-up section 101 detects and receives what signal.When frequency changes, the change of transmission signals built-up section 101 notice received signal processing sections 111.In response to this, received signal processing section 111 changes the port of its output signal.For example, when the frequency of being used by the AP91 that is connected to first port that is used for input signal and first port that is used for output signal had changed, transmission signals built-up section 101 detects these changes and notice received signal processing section 111 should change.Received signal processing section 111 is in the middle of the signal from main station optical signal receiving unit 112, and output has the signal of expected frequency to first port that is used for output signal.Even when the frequency shift used, AP can carry out normal communication therefore.Much less, when frequency changed as mentioned above, the user can manually change the setting of received signal processing section 111.

To the situation that be launched into external network from the data of terminal C output be described once more here.AP90a receives from the electrical signal types WLAN signal of main website 10 outputs, and to change this signal be Ethernet (R) signal, and it then is output to SW70.In response to this, SW70 receives Ethernet (R) signal, and it then is output to external network.As a result, from the signal flow of terminal C emission to external network.The situation that is launched into external network from the data of terminal C output so, has been described.

Next, will the situation that terminal c transmits signals to terminal D be described.Export Ethernet (R) signal process to SW70 till and similar process when the data from terminal C exported be launched into external network to AP90a from terminal C with the form of radio wave emission WLAN signal during to substation 20a, and will can not illustrate.

The SW70 that has received Ethernet (R) signal is with reference to Ethernet (R) signal that obtains.Here, Ethernet (R) signal is the signal that is launched into terminal D.Therefore, SW70 identification Ethernet (R) signal is the data that are launched into terminal D.Next, SW70 specifies Ethernet (R) signal with the AP91 that is output to reference to by the network configuration of himself managing.Here, terminal D is designed to communicate with AP91b.Therefore, SW70 output Ethernet (R) signal is to AP91b.

Thereafter, Ethernet (R) signal is by AP91b, main website 10 and substation 20b incoming terminal D.Attention: the operation of each part is identical with the operation of transfer of data from external network to terminal C in the meantime, and C is replaced by terminal D except terminal, therefore will can not illustrate.Equally, when data when terminal C is transmitted into terminal D, signal to be flowing with opposite as mentioned above direction, and describes and be omitted.

Here, the wireless communication system of embodiment 1 and traditional Wireless LAN system compare.Attention: in the following description, the carrying capacity of supposing each AP91 is ten, and it is identical with conventional method.

In traditional Wireless LAN system, AP91 is provided with for each zone.Therefore, each regional carrying capacity is based on that the quantity of the AP91 that is provided with for this zone determines.More particularly, under the situation of the Wireless LAN system of Figure 39, the carrying capacity of regional A is 20 and the carrying capacity of area B is 30.Therefore, for example, when 25 terminals were present in regional A and 25 terminals and are present in area B, the sum of terminal was 50 and equals the total carrying capacity of the AP in two zones, but the communication quality of regional A is lowered.

Therewith in pairs than, under the situation of the wireless communication system of embodiment 1, all signal that receives from AP91a to 91e of main website 10 emissions is to substation 20a and 20b.Therefore, whether tube terminal is not present in zone C or D, and all terminals can received signal.As a result, for example, even have 50 terminals when zone C, and region D might avoid the communication quality of zone C to lower, otherwise it will appear in traditional Wireless LAN system when not having terminal.In other words, according to the wireless communication system of embodiment 1, the carrying capacity of each AP91 can freely be distributed to a plurality of zones.The quantity of AP91 is five in embodiment 1, but is not limited thereto.

Same in the wireless communication system of embodiment 1, each terminal may receive the signal of expecting in zone C or region D.Therefore, even when terminal moves to another zone from a zone, the connection that the user needn't reset terminal.As a result, AP91 does not require roaming function.

Same in the wireless communication system of embodiment 1, the AP function that is used for WLAN is concentrated in main website 10.As a result, be easy to administer and maintain AP.In addition, when additional AP was provided, AP was installed in the main website side.Therefore, do not require the task that wiring is provided at ceiling or the like, make thus and be convenient to install AP.

Same in the wireless communication system of embodiment 1, substation 20 may be launched reception WLAN signal and be received the WLAN signals to a plurality of AP91 with from a plurality of AP91.Therefore, by single substation 20 is provided, a plurality of WLAN signals may be processed.Even under the conventional situation that a plurality of AP need be mounted in a place, only need single substation 20 therefore.For example, even under a plurality of AP need be installed in conventional situation on the identical application bar, in the wireless communication system of embodiment 1, single substation only is installed.

Same in the wireless communication system of embodiment 1, main website 10 and substation 20 are connected via optical fiber transmission path, therefore the distance of separated about several kms easily.Therefore, at the train station, underground shopping center, building in train or the like, by at a local main website 10 and an AP91 of installing, provides substation 20 in each place simultaneously, and service can easily be provided.Be used to provide government utility if wideer scope is envisioned for, the wherein central station that is mounted of main website 10 and AP91 can be provided, and central station can be connected to substation 20 in each coverage via optical fiber.For example, main website 10 and AP91 and other network equipments are installed in Internet data center, and Internet data center is connected to the WLAN coverage via the dark optical fiber of renting, for example the railway station, underground shopping center, the substation in public place or the like.Thus, can realize the WLAN service of wide region.

Same when the coverage was seated in the open air, main website and AP can be installed in indoor in the wireless communication system of embodiment 1, and only a substation is used to outdoor use simultaneously.The commercially availabie AP that is used for indoor use can be used, and makes that thus constructing wireless communication system economically becomes possibility.

When the wireless communication system of embodiment 1 uses out of doors with the 5GHz frequency band, should be avoided with the interference of other wireless devices.When wide region was to use individual antenna to cover, antenna need be launched had more powerful wireless signal especially, and it causes the interference to other wireless devices easily.Therewith in pairs than, wireless communication system according to embodiment 1, the coverage is divided into a plurality of zones, and each zone is to be connected to this regional substation by one via optical fiber transmission path to cover, and makes thus to reduce power by the wireless signal of each substation emission.In addition, do not have radio wave to leak, can easily prevent interference whereby other wireless devices from the optical fiber transmission path that is used to connect.

In the wireless communication system of embodiment 1, the WLAN signal carries out optical emitting with the form of RF signal.Because frequency division multiplex, if different signals has different frequencies, different signals can carry out optical emitting simultaneously.For example, WLAN 802.11 series comprise 802.11a and 802.11b, and it uses the frequency of 5.2GHz frequency band and 2.4GHz frequency band respectively.Two frequency bands can carry out optical emitting at an easy rate simultaneously, so that their service to be provided simultaneously.

Cellular phone signal is used to the 800-MHz frequency band, 1.5-GHz frequency band and 2-GHz frequency band, and the PHS signal is used to the 1.9-GHz frequency band.These frequencies are different from the frequency of WLAN signal.Therefore, at cellular phone signal and PHS signal and be used for photoemissive WLAN signal to carry out aspect the frequency division multiplex be no problem.Therefore, compare with being launched respectively from the WLAN signal when cell phone or PHS signal, aspect the cost reduction, it is effective using identical optical fiber to be used for emission according to embodiment 1.

The increase that the frequency of cellular phone signal produces algebraically with the third generation and the 4th generation increases.Usually, along with the increase of radio wave frequency, radio wave arrives indoor more difficult, causes the minimizing of coverage.Though current exactly required to the countermeasure of blind area, the blind area but trends towards increasing more and more.Therefore, if the WLAN service can provide by using the optical fiber transmission path identical with the present invention with cell phone service, might take measures to the blind area with low cost.Therefore, a such technology is very practical.

Although zone C and region D do not overlap each other in the wireless communication system of embodiment 1, zone C and region D can be partly overlapping each other.In this case, identical signal arrives zone C and region D, so terminal can be carried out diversity reception at lap.In addition, because identical signal arrives main website from the substation that is positioned at two zones equally, main website can carry out diversity reception with respect to the signal from a terminal.

Attention: the built-up section 101 that transmits may have the function of the intensity of adjusting each input signal before making up each signal by frequency division multiplex.This is because best degree of light modulation depends on that the type of signal or frequency change in the light emission, and therefore, each signal should be converted into the intensity that light signal was adjusted to the best in the past.More particularly, the intensity of each signal need be adjusted before being launched 101 combinations of signal combination part.Therefore, in the built-up section 101 that transmits of embodiment 1, before the signal that combination obtains, the intensity of each signal is adjusted, so that the amplitude of signal provides best degree of light modulation.For example, this adjustment can realize by the following method.Signal type from the input signal of each AP91 is detected by the built-up section 101 that transmits, and based on this result, the amplitude of signal is adjusted.Thus, can obtain to be used for the optimal light modulation degree of best main station optical signal radiating portion 102.Usually, the purpose of use is assigned to each frequency.Therefore, the built-up section 101 that transmits detects frequency, and the frequency of signal and type are known, based on them, can obtain the optimal light modulation degree.Particularly, the built-up section 101 that transmits detects from the signal frequency of AP91 input, and based on this result, adjusts the amplitude of each input signal.Thus, the function that can obtain to desire.

In embodiment 1, the quantity in zone is assumed to two, but is not limited to this.Equally, in embodiment 1, the quantity of AP91 is assumed to five, but is not limited thereto.

(the exemplary configuration of main website among the embodiment 1)

Another exemplary configuration of main website 10 in the wireless communication system of embodiment 1 is described with reference to Fig. 4.Fig. 4 is a block diagram, and the detailed configuration of the main website 10 of this examples of configurations is shown.

The main website 10 of Fig. 4 comprises the built-up section 101 that transmits, main station optical signal radiating portion 102, and beam split part 103, received signal processing section 111, main station optical signal receiving unit 112a and 112b are provided with part 140, and importation 141.Here, although importation 141 illustrates in the outside of main website 10, importation 141 can be arranged in the main website 10.

Here, the built-up section 101 that transmits, main station optical signal radiating portion 102, beam split part 103 and received signal processing section 111 are similar to shown in Fig. 2 those, and will not state.Main station optical signal receiving unit 112a and 112b also will be converted to electrical signal types WLAN signal from the light signal of each output of

substation

20a and 20b respectively.The operation that part 140 is provided with received signal processing section 111 is set.Importation 141 is that a kind of user adopts it setting to be input to the equipment that part 140 is set.

Being provided with of part 140 being set here, will be described.Received signal processing section 111 can receive respectively from the signal of main station optical signal receiving unit 112a and 112b, therefore, handles each received signal respectively.For example, when zone C and region D overlapped each other, the separated light signal that the signal of same terminal can be used as from different substations was launched.In this case, when these signals are added in a time-out, the amplitude of signal increases, so that signal to noise ratio is enhanced.In addition, by carry out the amplitude addition after the phase calibration difference, signal to noise ratio is further improved.If each optical fiber transmission path in the wireless communication system has substantially the same length, each phase difference between signals is very little, so that be easy to proofread and correct each phase difference between signals.In addition, if each optical fiber transmission path in the wireless communication system has substantially the same length, then each optical fiber transmission path has substantially the same launch loss.As a result, the light signal from each substation emission and arrival main website has identical size.

Simultaneously when zone C and region D overlap each other, more identical signals may be by from

substation

20a and 20b emission.Therefore, a signal with amplitude peak of these same signals can be selected and receive in received signal processing section 111,, can carry out diversity reception that is.Therefore, the main website 10 of this examples of configurations can be so that received signal be born various processes.Part 140 is set emit a control signal to received signal processing section 111, make received signal bear (perhaps not bearing) said process to order it.

Hereinafter, will the operation of the main website 10 of this examples of configurations be described briefly.

Operational difference relates to main station optical signal receiving unit 112a and 112b between the main website 10 of Fig. 4 and the main website 10 of Fig. 2, received signal processing section 111, and part 140 is set.Hereinafter this difference will be described.Other devices have those same operation with Fig. 3 main website 10, here will can not be illustrated.

Light signal from optical fiber transmission path 50a and 50b is received by main station optical signal receiving unit 112a and 112b respectively, and is converted into electrical signal types WLAN signal, and it then is output to received signal processing section 111.Received signal processing section 111 receives control signal from part 140 is set, and based on from the control signal that part 140 is set, handle from the signal of main station optical signal receiving unit 112a and 112b output, and the signal that output is produced is to each AP91.Like this, AP91 can obtain electrical signal types WLAN signal.

According to this examples of configurations, main website 10 utilizes main station optical signal receiving unit 112a and 112b, will be converted to electrical signal types WLAN signal respectively from the light signal of

substation

20a and 20b emission.Therefore, can handle in every way, thereby make the reception accuracy of improving the WLAN signal become possibility by each WLAN signal that signal processing 111 receives.

(the exemplary configuration of the substation of embodiment 1)

With reference to figure 5, with another exemplary configuration of the substation 20 in the wireless communication system of description embodiment 1.Fig. 5 is a block diagram, and the detailed configuration of the substation 20 of embodiment 1 is shown.When use had the AP of two frequency bands, given exemplary substation 20 was employed.Attention:, will describe substation 20 here, and suppose to have provided the AP91 that uses the 2.4GHz frequency band and used 5.2GHz frequency band AP91.

The substation 20 of Fig. 5 comprises substation light signal receiving unit 201, substation light signal radiating portion 211, wireless signal transmission part 2020, wireless signal receiving unit 2120, signal emission/

reception separating part

2041 and 2042, and signal transmit/receive antenna part 2051 and 2052.Attention: the operation of each part is similar to the operation of Fig. 3 basically, therefore will not describe.Difference between the substation 20 of attention: Fig. 5 and the substation 20 of Fig. 3 is the quantity of signal emission/reception separating part and the quantity of signal transmit/receive antenna part.

The operation of the substation 20 of Fig. 5 will be described briefly.At first, will light signal is input to the substation 20 of Fig. 5 from main website 10 situation be described.Substation light signal receiving unit 201 will be converted to electrical signal types WLAN signal from the light signal of main website 10 outputs, and it then is output to wireless signal transmission part 2020.Wireless signal transmission part 2020 is amplified from the electrical signal types WLAN signal of substation light signal receiving unit 201 outputs.Signal in the 2.4GHz frequency band of wireless signal transmission part 2020 output amplifying signals is to signal emission/reception separating part 2041, and the signal of output 5.2GHz frequency band is to signal emission/reception separating part 2042.Thereafter, the electrical signal types WLAN signal that outputs to signal transmit/receive

antenna part

2051 and 2052 is used as radio wave transmission to terminal.So, the light signal that is received by substation 20 is transmitted into terminal.

Next, will a radio wave type WLAN signal is input to the substation 20 of Fig. 5 from main website 10 situation be described.The radio wave type WLAN signal that signal transmit/receive antenna part 2051 receives in the 2.4GHz frequency band, and the radio wave type WLAN signal that signal transmit/receive antenna part 2052 receives in the 5.2GHz frequency band.Signal transmit/receive

antenna part

2051 and 2052 output received signals are to signal emission/reception separating part 2041 and 2042.Next, the signal of signal emission/

reception separating part

2041 and 2042 output acquisitions is to wireless signal receiving unit 2120.Wireless signal receiving unit 2120 is similar to the operation of the substation 20 of Fig. 3 with substation light signal radiating portion 211 operation subsequently, will not describe like this.Like this, the radio wave type WLAN signal that is received by substation 20 is launched into main website 10.

According to 20, two antennas in substation of Fig. 5, promptly signal transmit/receive

antenna part

2051 and 2052 is used, and has the signal of two complete different frequencies whereby, can be received with high accuracy such as the signal of 2.4GHz and 5.2GHz.

Although the substation 20 of embodiment 1 has two signals to launch/accept

antenna part

2051 and 2052, signal transmit/receive

antenna part

2051 and 2052 quantity are not limited to this.

Next, will be with reference to another exemplary configuration of the substation 20 in the wireless communication system of figure 6 (a) description embodiment 1.Fig. 6 (a) is a block diagram, and the detailed configuration of the substation 20 of this examples of configurations is shown.In substation 20, cross-talk arrester 2046 and adder 2047 are arranged in the substation 20 of Fig. 3, so that reduce the cross-talk from the signal transmitting system to the receiving system.Hereinafter, the substation 20 of this examples of configurations will be described in detail.

This exemplary substation 20 is similar to the substation 20 of Fig. 3, only cross-talk arrester 2046 and adder 2047 is increased the substation 20 of having given Fig. 3.Cross-talk arrester 2046 extracts signal from wireless signal transmission part 202, changes and be inverted the amplitude of the signal that is extracted, and the signal that output is produced is to adder 2047.The signal and the signal plus of exporting from cross-talk arrester 2046 of separating part 204 outputs will be launched/receive to adder 2047 from signal, and the signal that output is produced is to wireless signal receiving unit 212.

Hereinafter, will the operation of the substation 20 of this examples of configurations be described briefly.Attention: the substation 20 of this examples of configurations similar to the operation of the substation 20 of Fig. 3 basically.Therefore, cross-talk arrester 2046 will be described mainly, the operation of adder 2047 and signal emission/reception separating part 204.

Signal emission/reception separating part 204 outputs to signal transmit/receive antenna part 205 with signal from wireless signal transmission part 202, and signal is outputed to wireless signal receiving unit 212 from signal transmit/receive antenna part 205.Here, signal emission/reception separating part 204 is carried out aforesaid operations in theory.Yet, in fact, not only be launched into signal transmit/receive antenna part 205 through signal emission/reception separating part 204 from the signal of wireless signal transmission part 202, and the part of the signal wireless signal receiving unit 212 (generation of cross-talk) that bleeds.

Therefore, cross-talk arrester 2046 extracts signal from wireless signal transmission part 202, the amplitude that changes and be inverted this signal, and export the signal that is produced.Next, adder 2047 is with the output of cross-talk arrester 2046 and the output addition of signal emission/reception separating part 204, and the signal that output is produced is to wireless signal receiving unit 212.As a result, the above-mentioned cross-talk in the signal emission/reception separating part 204 is eliminated by adder 2047.Notice that in cross-talk arrester 2046, amplitude and phase place are adjusted in the mode that can eliminate cross-talk.

As mentioned above, substation 20 has cross-talk and eliminates function, reduces the cross-talk from the signal transmitting system to the receiving system thus.Usually, often reach and receive wireless signal and compare the degree of can not ignore owing to noise is present in the cross-talk to receiving system that the optical receiver system of substation light signal receiving unit 201 occurs.Yet, be difficult to utilize filter or the like to remove noise.Therefore, it is effective especially eliminating cross-talk resembling in this examples of configurations.

Though what is eliminated is to be represented by signal, it also is effective for noise equally that function is eliminated in cross-talk.Next, an exemplary detailed configuration of the substation 20 of Fig. 6 (a) will be described with reference to figure 6 (b).Fig. 6 (b) is a block diagram, and the detailed configuration of substation 20 is shown.Here, the substation 20 of this examples of configurations is similar to the substation 20 of Fig. 3, and only with separating part 2061, decay part 2082 be inverted part 2063, and mixing portion 2064 further is provided to the substation 20 of Fig. 3.Attention: signal emission/reception separating part 204 is the circulator parts 2084 as a particular examples.

Separating part 2061 separate and output from the signal of wireless signal transmission part 202 outputs to circulator part 2084 and decay part 2082.Decay part 2082 will be from the predetermined quantity of phase delay of the signal of separating part 2061 output.Being inverted part 2063 will be inverted from the amplitude of the signal of decay part 2082 outputs.Usually, being inverted part 2063 is used as inverting amplifier and realizes.The signal of mixing portion 2064 device of self-loopa in the future parts 2084 carries out addition with the signal from 2063 outputs of inversion part.

The operation of the substation 20 of such structure of Fig. 6 (b) will be described hereinafter.Attention: the operation of the substation 20 of this examples of configurations is identical with the operation of the substation 20 of Fig. 6 (a) basically, therefore, will only describe the operation of different parts.

Be sent to decay part 2082 from the separated part 2061 of a part of the signal of wireless signal transmission part 202 output, and another part of signal is mainly outputed to circulator part 2084.Be output to signal transmit/receive antenna part 205 from the signal of circulator part 2084 outputs.The signal that outputs to circulator part 2084 from signal transmit/receive antenna part 205 is outputed to wireless signal receiving unit 212 from circulator part 2084 through mixing portion 2064.Here, circulator part 2084 is operated in theory as described above.Yet in fact, not only the signal from separating part 2061 outputs is output to signal transmit/receive antenna part 205 by circulator part 2084, and the part of signal drains to mixing portion 2064 as cross-talk.

Therefore, separating part 2061 separates from the signal of wireless signal transmission part 202 outputs and a part of exporting it to decay part 2082.Decay part 2082 provides best this signal that is deferred to, and the signal that output is produced is to being inverted part 2063.Being inverted the amplitude of 2063 pairs of signals of part is inverted.Next, as the situation of adder 2047, mixing portion 2064 carries out addition with the output of circulator part 2084 with the output of being inverted part 2063, and the signal that output is produced is to wireless signal receiving unit 212.As a result, the above-mentioned cross-talk in the circulator part 2084 is eliminated in mixing portion 2064.Attention: to eliminate the mode of cross-talk, at separating part 2061, decay part 2082, amplitude is adjusted in inversion part 2063 and the mixing portion 2064, and is optimized in decay part 2082 phase places.Even decay part 2082 and inversion part 2063 are in the position of putting upside down, identical functions also can realize.

Next, will be with reference to another exemplary detailed configuration of the substation 20 in the wireless communication system of figure 6 (c) description Fig. 6 (a).In Fig. 6 (c), substation 20 comprises substation light signal receiving unit 201, wireless signal transmission part 202, signal transmit/receive antenna part 205, substation light signal radiating portion 211, wireless signal receiving unit 212,

coupler section

2081a and 2081b, decay part 2082, decay part 2083 and circulator part 2084.Here, substation light signal receiving unit 201, wireless signal transmission part 202, signal transmit/receive antenna part 205, substation light signal radiating portion 211 and wireless signal receiving unit 212 are similar to those parts of Fig. 6 (a), therefore will not describe.Equally, decay part 2082 and circulator part 2084 are similar to those parts of Fig. 6 (b), therefore will not describe.

The part that coupler section 2081a separates from the signal of wireless signal transmission part 202 and output signal arrives decay part 2082.Decay part 2082 provides best being deferred to from the signal of coupler section 2081a output, and the signal that output is produced is to decay part 2083.Decay part 2083 is adjusted from the amplitude of the signal of decay part 2082 outputs, and exports the signal that is produced.Next, coupler section 2081b will be from the signal of circulator part 2084 output and signal plus from 2083 outputs of decay part, and the signal that output obtains by addition is to wireless signal receiving unit 212.

Here,

coupler section

2081a and 2081b are used as directional coupler and realize.When separation or composite signal ripple, directional coupler provides the phase differences of 90 degree to signal.Therefore, by making signal pass two

coupler section

2081a and 2081b, the phase transition 180 of signal is spent.In other words, the amplitude of signal is squeezed.

As mentioned above, according to the exemplary configuration of Fig. 6 (c), the cross-talk that appears at circulator part 2084 is eliminated at coupler section 2081b.Attention: aspect the elimination cross-talk, at

coupler section

2081a and 2081b, decay part 2082 and decay part 2083 amplitudes are adjusted, and are adjusted in decay part 2082 phase places.If separate with 2081b or ratio the best of composite signal ripple at two coupler section 2081a, then do not need the part 2083 that decays.

According to the configuration of Fig. 6 (c),

coupler section

2081a and 2081b, decay part 2082 and decay part 2083 are need not the passive part that power supply is operated.Therefore, the substation 20 of Fig. 6 (c) also advantageously prevents aging except that need not power supply and changes its temperature.

Next, another exemplary configuration of the substation 20 in the wireless communication system of embodiment 1 will be described with reference to figure 7.Fig. 7 is a block diagram, and the detailed configuration of the substation 20 of this examples of configurations is shown.This substation 20 is different from the substation of Fig. 3, and wherein signal transmit/receive antenna part 205 is divided into transmitting antenna part 203 and reception antenna part 213, and signal emission/reception separating part 204 is not provided.Substation 20 is used to reduce cross-talk.Hereinafter, will describe substation 20 in detail.

The substation 20 of this examples of configurations comprises substation light signal receiving unit 201, wireless signal transmission part 202, transmitting antenna part 203, substation light signal radiating portion 211, wireless signal receiving unit 212, and reception antenna part 213.Attention: substation light signal receiving unit 201, wireless signal transmission part 202, substation light signal radiating portion 211 and wireless signal receiving unit 212 are similar to those parts of Fig. 3, and therefore do not describe.Here, transmitting antenna part 203 with the emission of the form of radio wave from the WLAN signal of wireless signal transmission part 202 outputs to terminal.Reception antenna part 213 receives the WLAN signal with the form emission of radio wave, and the output received signal is to wireless signal receiving unit 212.

Hereinafter, will so operation of the substation 20 of this examples of configurations of structure be described.

Substation light signal receiving unit 201 will be converted to electrical signal types WLAN signal from the light signal of optical fiber transmission path input, and it then is imported into wireless signal transmission part 202.Next, wireless signal transmission part 202 will be amplified or the like from the electrical signal types WLAN signal of substation light signal receiving unit 201 outputs, and the signal that output is produced is to transmitting antenna part 203.Transmitting antenna part 203 with the emission of the form of radio wave from the electrical signal types WLAN signal of wireless signal transmission part 202 outputs to atmosphere.As a result, the WLAN signal is launched into terminal.

The radio wave type WLAN signal that receives by reception antenna part 213 is output to wireless signal receiving unit 212.Wireless signal receiving unit 212 will be the signal that is applicable to substation light signal radiating portion 211 from the conversion of signals of reception antenna part 213, and the signal that output is produced is to substation light signal radiating portion 211.Next, substation light signal radiating portion 211 will be a light signal from the electrical signal types WLAN conversion of signals of wireless signal receiving unit 212, and it then is transmitted into main website 10 by optical fiber transmission path.As a result, light signal arrives main website 10.

In the substation 20 of this examples of configurations, the antenna that is used for the signal emission is provided with respectively with the antenna that is used for the signal reception, so that signal transmitting system and receiving system are circuit separately.Therefore, might reduce cross-talk between signal transmitting system and the receiving system.

Directional antenna is used as transmitting antenna and reception antenna, and directional antenna is positioned to optimum orientation, makes the cross-talk (cross-talk from the signal transmitting system to the receiving system) that reduces between two antennas become possibility thus.Attention: directional antenna can be used to the substation among other the embodiment.

In the substation 20 of this examples of configurations, signal transmitting system and receiving system are circuit separately, therefore can be accommodated in the shell separately.As a result, the cross-talk between signal transmitting system and the receiving system is further reduced.Attention: in this case, substation 20 has two shells, therefore, needs two optical fiber to connect this two shell.

According to the substation 20 of this examples of configurations, optical fiber transmission path comprises two optical fiber that are used to upload and descend biography, and therefore, above-mentioned two shells can be provided with from a distance.Here, when substation 20 is installed, if people are in order to reduce the cross-talk between signal transmitting system and the receiving system, promptly, cross-talk from transmitting antenna part 203 to reception antenna part 213 is to the degree of expectation or shell still less is installed, because the degeneration of cross-talk on the performance of receiving system can be in negligible degree.As a result, cross-talk problem is solved fully.

The substation 20 of attention: Fig. 6 (a) to (c) and the substation 20 of Fig. 7 can be made up.Fig. 8 is a block diagram, is illustrated in the configuration of substation 20 in this case.

As mentioned above, in the examples of configurations of Fig. 7, signal transmitting system and receiving system are systems separately, make thus to be difficult to take place cross-talk.Yet when signal transmitting system and receiving system were accommodated in the same shell, even signal transmitting system and receiving system are systems separately, cross-talk also can take place.For fear of these, by being provided, the cross-talk in the substation 20 as shown in Figure 8 eliminates part 206, and the cross-talk between signal transmitting system and the receiving system is reduced effectively.

Attention: each signal frequency that the substation 20 of a plurality of embodiment 1 can be received for transmitting antenna part 203 and the reception antenna part 213 by Fig. 7 provides.Fig. 9 is a block diagram, is illustrated in the configuration of substation 20 in this case.Adopt this configuration, be similar to the substation 20 of Fig. 5, two antennas are used to each system (promptly, transmitting

antenna part

2031 and 2032 and reception antenna part 2131 and 2132), so that signal is in two complete different frequency bands, can be received with high accuracy such as the signal of 2.4GHz and 5.2GHz.In addition, the cross-talk that takes place between signal transmitting system and the receiving system is reduced.

The substation 20 of attention: Fig. 8 and the substation 20 of Fig. 9 can be made up.Figure 10 is a block diagram, is illustrated in the configuration of substation 20 in this case.Adopt this configuration, the cross-talk that occurs between signal transmitting system and the receiving system is reduced, and because two antennas are used to each system (promptly, transmitting

antenna part

2031 and 2032 and reception antenna part 2131 and 2132), be in two complete different frequency bands, can be received with high accuracy such as the signal of 2.4GHz and 5.2GHz.In addition, cross-talk is eliminated partly and can be provided between wireless signal transmission part 2020 and wireless signal receiving unit 2120.In this case, although be difficult to eliminate the cross-talk of each frequency band, the configuration of substation has advantageously been simplified.

Next, another exemplary configuration of the substation 20 in the wireless communication system of embodiment 1 will be described with reference to Figure 11.Figure 11 is a block diagram, and the detailed configuration of the substation 20 of this examples of configurations is shown.The substation 20 of Figure 11 has emission and exists about the signal of each position of 20 in the substation or lack, signal magnitude, and temperature, the information of voltage or the like is to the function of main website 10.The operation to substation 20 Fig. 3 substation 20 of attention: Figure 11 is similar, only except the substation management control section 209.

Substation light signal receiving unit 201, wireless signal transmission/receiving unit 202, signal emission/reception separate section 204, signal transmit/receive antenna part 205, substation light signal radiating portion 211 and wireless signal receiving unit 212 are similar to those parts of Fig. 3, and therefore do not describe.The generation of substation management control section comprises about the signal existence of each position of substation or lacks signal magnitude, temperature, the management of information signal of voltage or the like.

Hereinafter, will so operation of the substation 20 of structure be described.Attention: supervisory signal 20 is launched as required or continuously from the substation.

, will describe the operation of substation 20 here, substation 20 receptions therein are from the instruction and the outgoing management signal of main website 10.Main website 10 uses control signal to indicate the substation 20 that needs supervisory signal, and the emission supervisory signal is to this substation 20.Next, substation light signal receiving unit 201 detects control signal and notifies substation management control section 209 these control signals detected.In response to this, 209 outputs of substation management control section are arrived substation light signal radiating portion 211 as the information of having collected about the state of substation 20 of supervisory signal.Substation light signal radiating portion 211 usefulness are carried out frequency division multiplex from the signal of wireless signal receiving unit 212 to the supervisory signal from substation management control section 209, and this frequency division multiplex signal is converted to light signal.Light signal from substation light signal radiating portion 211 be transmitted into optical fiber transmission path on thereafter.

On the other hand, main website 10 at Fig. 2, light built-up section 113 receiving management signals, and export it to main station optical signal receiving unit 112, main station optical signal receiving unit 112 is electrical signal form with supervisory signal from the light signal formal transformation, and exports the signal received signal processing section 111 that is produced.As a result, received signal processing section 111 can obtain supervisory signal and by utilizing supervisory signal to handle to output to the signal of AP.

As mentioned above, when the instruction from main website 10 is presented, only receive the substation 20 emission supervisory signals of instruction.Therefore, in main website 10, not temporary transient overlapping or interfere with each other from the supervisory signal of a plurality of substations 20.Therefore, favourable, do not need parallel processing in main website 10.

In addition, when the carrier frequency of supervisory signal is designed between each substation 20 not simultaneously, substation 20 is the outgoing management signal always.In other words because from the supervisory signal of each substation 20 be separately and be independently aspect the frequency, even son 20 outgoing management signal always, supervisory signal can be not interfering with each other yet.

Adopt this configuration, between each substation 20, the carrier frequency of supervisory signal is different.Therefore, in main website 10, advantageously, substation 20 can easily be discerned based on the difference of the carrier frequency of supervisory signal.Needless to say, in this configuration, have only when the instruction from main website 10 is presented, only supervisory signal can be launched in the substation 20 of response and reception instruction.

Adopt above-mentioned configuration, the state information about whole substations can be collected by main website 10.Therefore, the information that has 20 information of collecting and each part of relevant main website itself from the substation when main website 10 outputs to outside function together, and information can externally be used as the supervisory signal that is used for whole wireless signal optical transmission system.

When main website 10 was configured to have above-mentioned functions, the supervisory signal that is used for whole wireless signal optical transmission system obtained from main website 10, makes the state of easily managing entire wireless communication system become possibility thus.So, a such technology is very practical.

In addition, adopt this exemplary configuration, its state is notified in substation 20 to main website 10 in the mode of supervisory signal.Therefore, the state of all substations 20 can be known by main website 10.In addition, because supervisory signal has been carried out frequency division multiplex with the WLAN signal, and the signal that is produced is transmitted, and do not need other transmission path for supervisory signal.

The substation 20 of attention: embodiment 1 and the substation 20 of above-mentioned examples of configurations may be connected to main website 10 through single conductor bidirectional optical fiber or the single optical fiber uploaded for each and descend to pass.Attention: under the situation of single conductor optical fiber, substation 20 is provided with optical coupler part 53 as shown in figure 12.In this case, the optical coupler part further is arranged between main website and the optical fiber.

(embodiment 2)

Hereinafter, whole configuration according to the wireless communication system of embodiments of the invention 2 will be described with reference to the drawings.The whole configuration of the wireless communication system of attention: embodiment 2 is similar to the configuration of embodiment 1, and therefore, Fig. 1 is by reference.

SW70 and AP91a to 91e are similar to those parts of embodiment 1, have not therefore described.Equally,

substation

20a and 20b are similar to those parts of embodiment 1, and therefore, Fig. 3 is by reference.

To the main website 10 of the wireless communication system of embodiment 2 be described here.The main website 10 of embodiment 2 will be a light signal from the electrical signal types WLAN conversion of signals of AP91a to 91e input, and export light signal selectively to each substation 20a and 20b.More particularly, main website 10 is provided with the output light signal to one of them of substation 20a and substation 20b or they according to the user.Hereinafter, the main website 10 of embodiment 2 will be described with reference to Figure 13.

The main website 10 of embodiment 2 comprises main station optical

signal radiating portion

102a and 102b, received signal processing section 111, and main station optical signal receiving unit 112a and 112b, the processing section 121 that transmits, importation 141, and part 142 is set.

Here, received signal processing section 111 and main station optical signal receiving unit 112a and 112b are similar to those parts of Fig. 4, therefore will not describe.

Transmit processing section 121 according to the setting that is provided with in the part 142, and output is from the signal of each AP91 output to main station optical signal radiating portion 102a with 102b or one of them.Hereinafter, the configuration of the processing section 121 that transmits will be described with reference to Figure 14 (a).Figure 14 (a) is a figure that the exemplary configuration of the processing section 121 that transmits is shown.

The processing section 121 that transmits comprises separating part 1211a to 1211d, connector 1212a to 1212c, and built-up section 1213a to 1213c.Separating part 1211a to 1211d is connected to AP91 correspondingly.The 121 pairs of electrical signal types WLAN signals from each AP91 output in processing section that transmit separate, and the signal that output is produced is to connector 1212a to 1212c.Connector 1212a to 1212c determines the conversion switch part that will be output according to the setting that is provided with the part 142 from which signal of the electrical signal types WLAN signal of separating part 1211a to 1211d output.Built-up section 1213a to 1213c is provided as interrelating with connector 1212a to 1212c, with the electrical signal types WLAN signal of combination from each corresponding connector 1212a to 1212c output, and the signal that output is produced is to main station optical signal radiating portion 102a to 102c.Attention: for the sake of brevity, four AP and three substations are connected to the processing section 121 that transmits of Figure 14 (a),, and five AP91 and two substations 20 are connected to the wireless communication system of Fig. 1.Therefore, when the processing section 121 that transmits was used to the wireless communication system of Fig. 1, five separating parts 1211 were presented, and two connectors 1212 and two built-up sections 1213 are presented.

Main station optical signal radiating portion 102a to 102c will be a light signal from the electrical signal types WLAN conversion of signals of built-up section 1213a to 1213c output.

Part 142 input according to 141 the user in the importation is set,, specifies which electrical signal types WLAN signal will be output to each main station optical signal radiating portion 102a to 102c with reference to connector 1212a to 1212d.More particularly, the input of part 142 based on the user is set, emit a control signal to each connector 1212a to 1212c.Each receives the connector 1212a to 1212c of control signal, each change over switch is transferred to open or closes according to control signal.

Being provided with of part 142 being set here, will be described in detail.Part 142 is set has from AP91 to the substation 20 communication route.The indication of communication route is output to which substation 20 from the signal of each AP91 output.The situation that part 142 is provided with the communication route of AP91a is set will be described.The user determines the AP91a output signal to which substation 20.Attention: at Figure 14 (a), AP91a is assumed to be that output signal arrives all substation 20a to 20c.Therefore, the user uses importation 141 that this is set part 142 is set, so that be output to substation 20a to 20c from the signal of AP91a output.The end that is provided with of part 142 is set thus.Part 142 be set output a control signal to each connector 1212a to 1212c, so that each change over switch be diverted open or close thereafter.Although AP91a is described in description above, part 142 is set utilizes similar program to be used for the setting of another AP91.

Hereinafter, the operation of the processing section 121 that transmits will be described with reference to Figure 14 (a).

Have f1, f2, the electrical signal types WLAN signal of the frequency of f3 and f4 is input to each separating part 1211a to 1211d from AP91a to 91d.Next, each separating part 1211a to 1211d separates the electrical signal types WLAN signal that is obtained, and the signal that output is produced is to each connector 1212a to 1212c.As a result, each connector 1212a to 1212c obtains to have frequency f 1, f2, all electrical signal types WLAN signals of f3 and f4.

Next, connector 1212a to 1212c only outputs to each built-up section 1213a to 1213c by their change over switch that is converted into out with electrical signal types WLAN signal.Attention: in embodiment 2, connector 1212a is set up, so that all electrical signal types WLAN signals are output.Connector 1212b is set up, and is output with the electrical signal types WLAN signal with frequency f 4 so that have the electrical signal types WLAN signal of frequency f 2.Connector 1212c is set up, so that have the electrical signal types WLAN signal of frequency f 1, the electrical signal types WLAN signal with frequency f 2 is output with the electrical signal types WLAN signal with frequency f 4.Built-up section 1213a to 1213c makes up the electrical signal types WLAN signal that obtains by frequency division multiplex.As a result, with the combination of wireless lan signal of electrical signal form as the right of Figure 14 (a) indicated quilt produce.Thereafter, main station optical signal part 102a to 102c is converted to light signal with the electrical signal types combination of wireless lan signal that obtains, and it then is output to each substation 20.Therefore, the transmit operation of processing section 121 is described.

Attention: the operation of the operation of each substation 20 and each main station optical signal receiving unit 102a to 102c and received signal processing section 111 is similar to those parts of embodiment 1, and will not describe.

As mentioned above, according to the wireless communication system of embodiment 2, the electrical signal types WLAN signal that obtains from each AP91 can be output to any zone arbitrarily.Therefore, terminal can receive from the electrical signal types WLAN signal of each AP91 output in a plurality of zones.As a result, the carrying capacity of each AP91 can be assigned to a plurality of zones, so that the carrying capacity of AP91 can be effectively utilized as embodiment 1.

In addition, according to the wireless communication system of embodiment 2, the WLAN signal can be provided with the substation 20 that is transmitted to by the user.Therefore, there is not unnecessary signal to be launched into each substation 20, so that only essential WLAN signal is launched into each zone.As a result, the fail safe of wireless communication system can be enhanced.

In addition, according to the wireless communication system of embodiment 2, there is not unnecessary signal to be launched into each substation 20.Aspect optical transmission, this is preferred.In addition, substation 20 has shirtsleeve operation.

In addition, according to the wireless communication system of embodiment 2, main station optical

signal radiating portion

102a and 102b are offered each optical fiber transmission path respectively.Therefore, export with the light of single photocell and to compare when separated, might easily obtain big light output.

Attention: in the wireless communication system of embodiment 2, each substation of describing in the exemplary configuration of the substation of embodiment 1 can be employed.

(the exemplary configuration of the main website of embodiment 2)

Another exemplary configuration of the main website 10 of embodiment 2 here, will be described with reference to the drawings.In the main website 10 of this examples of configurations, transmit processing section 121 and the received signal processing section 111 of the main website 10 of Figure 13 are integrated in together.In addition, the concrete configuration of the main website 10 of this examples of configurations is illustrated.Figure 14 (b) is a block diagram, and the configuration of the main website 10 of this examples of configurations is shown.Attention: in this examples of configurations, suppose that four AP91 are presented, and same four substations 20 are presented.The quantity of attention: AP91 and substation 20 is not limited thereto.

The main website 10 of Figure 14 (b) comprises transmitting/receiving signal processing section 1250, circulator part 1215a to 1215d, main station optical signal radiating portion 102a to 102d, main station optical signal receiving unit 112a to 112d, importation 141 and part 142 is set.

Main station optical signal radiating portion 102 will be a light signal from the electrical signal types WLAN conversion of signals of circulator part 1215 outputs, and it then is output to the substation 20 that is connected to the there.The light signal that main station optical signal receiving unit 112 will be launched from the substation 20a that is connected to the there is converted to electrical signal types WLAN signal, and it then is output to circulator part 1215.Circulator part 1215 will be transmitted into transmitting/receiving signal processing section 1250 from the electrical signal types WLAN signal of main station optical signal receiving unit 112 outputs, and will output to main station optical signal radiating portion 102 by the 1250 electrical signal types WLAN signals of exporting from the transmitting/receiving signal processing section.The operation that part 142 is provided with transmitting/receiving signal processing section 1250 is set.Being provided with of describing among the setting that part 142 is set and Figure 13 is similar, and will not be described in detail.Importation 141 is that a kind of user adopts it that equipment that input is set of part 142 will be set.

Transmitting/receiving signal processing section 1250 has the function that transmit processing section 121 and received signal processing section 111 by combination Figure 13 obtain.Particularly, transmitting/receiving signal processing section 1250 will output to main station optical signal radiating portion 102a to 102d from the signal of each AP901a to 91d output according to the setting that part 142 is set.In addition, transmitting/receiving signal processing section 1250 will output to desired AP91a to 91d from the signal of main station optical signal receiving unit 112a to 112d input according to the setting that part 142 is set.Attention: transmitting/receiving signal processing section 121 has the configuration of Figure 14 (c).Hereinafter, the detailed configuration of transmitting/receiving signal processing section 1250 will be described with reference to Figure 14 (c).

The transmitting/receiving signal processing section 1250 of Figure 14 (c) comprises coupler group 1251, change over switch group 1252 and coupler group 1253.Coupler group 1251 comprises a plurality of couplers, and will be the quantity of substation 20 from the Signal Separation of AP91 input.Attention: four substations 20 are presented in Figure 14 (c).Therefore, for example, the coupler that is connected to AP91a separates the signal into two, and so each of the signal of latter two separation is divided into two signals.As a result, the signal from the AP91a input is divided into four.Attention: separated equally from the signal of another AP91 input.

Change over switch group 1252 comprises a plurality of conversion switch part, and according to be provided with part 142 be provided with to determine which signal from the electrical signal types WLAN signal of coupler group 1251 outputs is output.

Coupler group 1253 comprises a plurality of couplers, and makes up from the electrical signal types WLAN signal of each conversion switch part output, and the signal that output is produced is to circulator part 1215.

Coupler group 1253 will be the quantity of AP91 from the Signal Separation of circulator part 1215 outputs equally.Change over switch group 1252 according to be provided with part 142 be provided with to determine which signal from the electrical signal types WLAN signal of coupler group 1253 outputs is output.In addition, 1251 combinations of coupler group are from the electrical signal types WLAN signal of change over switch group 1252 outputs, and the signal that output is produced is to AP91.

Hereinafter, will so operation of the main website 10 of this examples of configurations of structure be described tout court.Attention: the operation of the main website 10 of this examples of configurations is substantially similar to the operation of the main website 10 of Figure 13.

At first, will the operation of main website 10 performed when Ethernet (R) the signal incoming terminal imported from external network be described.Attention: the configured in one piece of wireless communication system is identical with the configuration shown in Fig. 1.The quantity of AP91 is that the quantity of five and substation 20 is two in Fig. 1, yet here, the quantity of AP91 is that the quantity of four and substation 20 is four.

Be imported into SW70 from Ethernet (R) signal of external network input.Similar to described in the embodiment 2, the network configuration of SW70 management Wireless LAN system, here, the network configuration of this system is indicated the communication of which which terminal of AP91 relaying.SW70 specifies as the terminal of launching the destination with reference to Ethernet (R) signal, and output Ethernet (R) signal is to the AP91 of the communication of relaying designated terminal.Attention: the AP91 that obtains Ethernet (R) signal is assumed that AP91a.

AP91a is an electrical signal types WLAN signal with Ethernet (R) conversion of signals that obtains, and it then is output to main website 10.In response to this, the coupler group 1251 of main website 10 obtains electrical signal types WLAN signal.

The coupler group 1251 of main website 10 is four signals with the electrical signal types WLAN Signal Separation that obtains, and it then is output to change over switch group 1252.Attention: the first, the five, the 9th and the 13 conversion switch part (begin from the top several) that is imported into the change over switch group 1252 of Figure 14 (c) from the electrical signal types WLAN signal of AP91a output.

Here, each conversion switch part of change over switch group 1252 is converted into ON/OFF according to the setting that part 142 is set.Here, as being provided with one of part 142 for example, the situation that only is output to

substation

20a and 20b from the signal of AP91a output will be carried out description.Attention: being arranged on here of other AP91b to 91d will not describe.

As mentioned above, the signal from AP91a output is output to substation 20a and 20b.Therefore, here, the conversion switch part that is connected to

substation

20a and 20b is converted into out.Particularly, the first and the 5th conversion switch part of Figure 14 (c) is converted into out, and the 9th and the 13 conversion switch part is converted into the pass.

When conversion switch part is set to ON/OFF as described above, the first and the 5th conversion switch part of change over switch group 1252 (begin from the top several) will be from the electrical signal types WLAN signal output of AP91a output.In response to this, 1253 pairs of electrical signal types WLAN signals from each conversion switch part output of coupler group carry out frequency division multiplex, and the signal that output is synthesized is to circulator part 1215.Thereafter, the signal of circulator part 1215 output acquisitions is to main station optical signal radiating portion 102.Main station optical signal radiating portion 102, the operation subsequently of substation 20 and terminal is similar to the operation of embodiment 2, therefore will not describe.

Next, will the situation that be launched into external network from the electrical signal types WLAN signal of terminal emission be described.Here, as one for example, suppose that electrical signal types WLAN signal is by the terminal output from the communication zone that is present in substation 20a.

The terminal that is present in the communication zone of substation 20a is exported the WLAN signal with the form of radio wave.In response to this, substation 20a receives this radio wave type WLAN signal, and is converted into light signal, and it then is launched into main website 10.Attention: this operation is described in

embodiment

1 and 2, and will not be elaborated.

Main website 10 uses main station optical signal receiving unit 112a from substation 20a receiving optical signals.Main station optical signal receiving unit 112a is converted to electrical signal types WLAN signal with light signal, and it then is output to circulator part 1215a.In response to this, the signal that circulator part 1215a output obtains is to transmitting/receiving signal processing section 1250.

Transmitting/receiving signal processing section 1250 utilizes coupler group 1253 to receive electrical signal types WLAN signal.Attention: here, because electrical signal types WLAN signal is that this signal is partly received by first (top) calculator of coupler group 1253 from the signal of substation 20a emission.

Coupler group 1253 is four signals with the electrical signal types WLAN Signal Separation that obtains, and the signal that output is produced is to change over switch group 1252.Attention: particularly, be output to the first, the five, the 9th and the 13 conversion switch part (begin from the top several) of change over switch group 1252 from the signal of substation 20a emission.

Here, change over switch group 1252 is transferred to ON/OFF based on being provided with of part 142 is set.Attention: here, for the purpose of brief, as mentioned above, the first and the 5th conversion switch part (begin from the top several) is assumed that out.Therefore, only the first of change over switch group 1252 and the 5th conversion switch part (begin from the top several) output from the signal of substation 20a emission.

1251 pairs of signals from each conversion switch part output of coupler group carry out frequency division multiplex, and the signal that output is produced is to the AP91 that is connected to the there.Attention: be launched into AP91a and 91b from the electrical signal types WLAN signal of substation 20a output.Thereafter, electrical signal types WLAN signal is launched into external network via AP91a and 91b and SW70.

As mentioned above, according to the main website 10 of this examples of configurations, transmit processing section and received signal processing section can be realized with single circuit.As a result, the operation of the main website 10 of this examples of configurations has the main website 10 simpler internal configurations than Figure 13.

Another exemplary configuration of the main website 10 of embodiment 2 here, will be described with reference to the drawings.In the main website 10 of Figure 13, electrical signal types WLAN signal is handled in the processing section 121 that transmits.Yet optical signal type WLAN signal can be handled in the mode that is similar to electrical signal types WLAN signal processing in the processing section 121 that transmits.

Therefore,, use description to light signal for main website as described below 10, rather than the processing scheme of the processing section 121 that transmits of the signal of telecommunication.

Figure 15 is a block diagram, and another exemplary configuration of the main website 10 of embodiment 2 is shown.Figure 16 is a block diagram, and the details of light emission signal processing section 805 of the main website 10 of Figure 15 is shown.

Main website 10 comprises received signal processing section 111, main station optical signal receiving unit 112a and 112b, and importation 141 is provided with part 142, main station optical signal radiating portion 800a to 800e, and light emission signal processing section 805.Received signal processing section 111, main station optical signal receiving unit 112a and 112b, importation 141, and it is identical with those parts of Figure 13 that part 142 is set, and will not describe.

Main station optical signal radiating portion 800a to 800e is connected to each corresponding AP91a to 91e, and will be light signal from the electrical signal types WLAN conversion of signals of each AP91a to 91e output.Light emission signal processing section 805 has the configuration shown in Figure 16, and will output to one of them of substation 20a and substation 20b or they from the light signal of each main station optical signal radiating portion 800a to 800d output according to being provided with of part 142 is set.Hereinafter, the configuration of light emission signal processing section 805 will be described with reference to Figure 16.

Light emission signal processing section 805 comprises beam split part 810a to 810d, optical connector 815a to 815c and light built-up section 820a to 820c.Beam split part 810a to 810d will be separated into three respectively from the light signal of main station optical signal radiating portion 800a to 800d output.Optical connector 815a to 815c connects and disconnects the light signal of output.Light built-up section 820a to 820c makes up and frequency division multiplex the light signal of input.Frequency spectrum shown in Figure 16 is from the frequency spectrum of the signal of AP91a to 91d output with from the spectrum modulation signal of the signal of light built-up section 820a to 820c output.Attention: the centre frequency from the input signal of four AP91a to 91d is respectively that f1 is to f4.

Next, will the operation of above-mentioned light emission signal processing section 805 be described.The exemplary signal of attention: AP91a to 91d and substation 20 is connected shown in the form of Figure 16.Hereinafter, the operation of light emission signal processing section 805 in this case will be described in.

Among corresponding main station optical signal radiating portion 800a to 800d, be converted into light signal from the signal of AP91a to 91d output.Next, each of beam split part 810a to 810d is three with the separate optical signals of conversion, and it then is output to optical connector 815a to 815c.

Next, the connector 1212a to 1212c of optical connector 815a to 815c image pattern 14 (a) exports light signal to light built-up section 820a to 820c according to being provided with of part 142 is set like that.

Next, the light signal of exporting from optical connector 815a to 815c is being carried out frequency division multiplex among corresponding light built-up section 820a to 820c, and the signal that is produced is output to substation 20a to 20c.The processing afterwards of substation 20a to 20c is similar to those processing in

embodiment

1 or 2, and will not describe.

As mentioned above, the processing and utilizing light signal of the processing section 121 that transmits of Figure 14 (a) is carried out, and compares with the processing of the processing section 121 that transmits that utilizes the high frequency electrical signal operation whereby, and cross-talk properties is good.

Attention: light emission signal processing section 805 can be introduced into the main website 10 of other embodiment.

(embodiment 3)

Hereinafter, configured in one piece according to the wireless communication system of embodiments of the invention 3 will be described with reference to the drawings.Figure 17 is a block diagram, and the configured in one piece of the wireless communication system of embodiment 3 is shown.The wireless communication system of embodiment 3 is different from the wireless communication system of embodiment 1, and wherein regional G is present in main website 30 equally.Other unit class is similar to those unit of embodiment 1, and will not describe.

The SW70 of embodiment 3 and AP91a to 91e are similar to those parts of embodiment 1, and will not describe.The configuration of the substation 20a to 20c of embodiment 3 is similar to those configurations among the embodiment 1 of Fig. 3, and will not describe.

The main website 30 of embodiment 3 here, will be described with reference to the drawings.Figure 18 is a block diagram, and the configuration of the main website 30 of embodiment 3 is shown.Main website 30 is identical with the main website 10 of Fig. 2, except main website 30 further comprises main website wireless signal transmission part 232, and main website signal emission/reception separating part 234, main website signal transmit/receive antenna part 235, and main website wireless signal receiving unit 242.This means that main website 30 has the function of substation 20.

Main website wireless signal transmission part 232 is amplified from the electrical signal types WLAN signal of built-up section 101 outputs that transmit.Main website signal emission/reception separating part 234 will output to main website signal transmit/receive antenna part 235 from main website wireless signal transmission part 232 output signals, and output from the signal of main website signal transmit/receive antenna part 235 output to main website wireless signal receiving unit 242.Main website wireless signal receiving unit 242 makes the signal that obtains from main website signal emission/reception separating part 234 stand to be suitable for the processing of received signal processing section 111, and exports the signal that is produced and arrive received signal processing section 111.

Hereinafter, will the operation of the wireless communication system of embodiment 3 be described.Note, in embodiment 3, operation except main website wireless signal transmission part 232, the main website signal emission/reception separating part 234 of main website 30, main website signal transmit/receive antenna part 235 and main website wireless signal receiving unit 242 are similar to those parts of embodiment 1, and will not describe.

Main website wireless signal transmission part 232 obtains from the electrical signal types WLAN signal of the frequency division multiplex (combination) of built-up section 101 outputs that transmit.Next, main website wireless signal transmission part 232 is amplified the electrical signal types WLAN signal of frequency division multiplexs, so obtain and signal that output is produced to main website signal emission/reception separating part 234.The electrical signal types WLAN signal of the frequency division multiplex that 234 outputs of main website signal emission/reception separating part so obtain is to main website signal transmit/receive antenna part 235.In response to this, main website signal transmit/receive antenna part 235 arrives terminal with the electrical signal types WLAN signal of the form emission frequency division multiplex that obtains like this of radio wave.As a result, this terminal can be from main website 30 received signals.

The terminal that is present in regional G is launched the WLAN signal to main website signal transmit/receive antenna part 235 with the form of radio wave.In response to this, main website signal transmit/receive antenna part 235 receives radio wave type WLAN signal, and it is outputed to main website wireless signal receiving unit 242 successively via main website signal emission/reception separating part 234.Next, main website wireless signal receiving unit 242 makes the electrical signal types WLAN signal that obtains stand predetermined processing, for example amplify or the like, and the signal that output is produced is to received signal processing section 111.Received signal processing section 111 class of operation subsequently is similar to those operations of embodiment 1, and will not describe.

As mentioned above, according to the Wireless LAN system of embodiment 3, obtain the effect similar, and further, main website 30 can also serve as the substation to the wireless communication system of embodiment 1.Here, the service of the WLAN of the antenna of the directed WLAN AP that is used for apartment building is by commercialization.In this case, if single AP can cover whole apartment building, no problem generation.Yet, because the existence of barrier may need a plurality of AP.Therefore, AP need be installed in corresponding place (for example, using bar).In addition, AP need be connected to central station or change over switch via medium converter or the like.Opposite with this, in the wireless communication system of embodiment 3, main website is installed in the single place that the WLAN service is provided, and install for the blind area substation.If main website and substation are connected via optical fiber, the configured in one piece of wireless communication system is simple.

The antenna of the main website 30 of embodiment 3 is the antennas that are used to transmit and receive.Yet, can use two antennas, that is, and transmitting antenna and reception antenna.

Attention: each substation 20 of describing in the examples of configurations of embodiment 1 can be used to the substation 20 of embodiment 3.

Although SW70 is provided between the AP in the wireless communication system of external network and embodiment 1 to 5, wireless communication system may not need SW70.In this case, the network of separation is connected respectively to each AP.

Although in the wireless communication system of embodiment 1 to 3, the signal that is input to each AP is assumed that Ethernet (R) signal, is not limited to Ethernet (R) signal to the input of each AP.For example, the input to each AP may be ATM (asynchronous transfer mode) signal or the like.

(the exemplary configuration of the main website of embodiment 3)

Hereinafter, will another exemplary configuration of the main website 30 of embodiment 3 be described.Figure 19 illustrates the main website 30 identical with the main website 10 of the embodiment 1 of Fig. 6 (a), only main website 30 has further comprised main website wireless signal transmission part 232, main website signal emission/reception separating part 234, main website signal transmit/receive antenna part 235, and main website wireless signal receiving unit 242.Attention: have with the part of the counterpart identical operations of the main website 30 of the main website 10 of Fig. 4 and Figure 18 and will adopt identical label.Therefore, the operation 30 of main website will not describe.

Further, as shown in Figure 20, the main website 10 of the embodiment 2 of Figure 13 can further be equipped with main website wireless signal transmission part 232, main website signal emission/reception separating part 234, main website signal transmit/receive antenna part 235, and main website wireless signal receiving unit 242.Attention: have with the part of the counterpart identical operations of the main website 30 of the main website 10 of Figure 13 and Figure 18 and will adopt identical label.Therefore, the operation 30 of main website will not describe.

(embodiment 4)

Hereinafter, configured in one piece according to the wireless communication system of embodiments of the invention 4 will be described with reference to the drawings.Figure 21 is a block diagram, and the configured in one piece of the wireless communication system of embodiment 4 is shown.The wireless communication system of embodiment 4 is different from the wireless communication system of embodiment 1, and wherein AP93a to 93e utilizes radio wave and main website 35 to communicate.The main website 35 of embodiment 4 has the internal configurations of the main website 10 that is different from embodiment 1.Hereinafter, will describe the wireless communication system of embodiment 4, mainly be about the difference between the wireless communication system of itself and embodiment 1.

In embodiment 1, the AP93a to 93e of embodiment 4 will be the electrical signal types WLAN signal with predetermined channel frequency from Ethernet (R) conversion of signals of SW70 output, and with electrical signal types WLAN conversion of signals is radio wave, and it then is output to main website 35.AP93a to 93e receives one of them from the radio wave of main website 35 emissions equally on the channel identical with the channel of AP93a to 93e use, and the radio wave that receives is converted to Ethernet (R) signal, and it then is output to SW70.

Next, the main website 35 output received signals of embodiment 4 are to each substation 20a and 20b.Main website 35 has the configuration shown in Figure 22, and comprise

antenna part

150a and 150b, wireless signal transmission/

receiving unit

151a and 151b, signal emission/

reception separating part

152a and 152b, main station optical

signal radiating portion

153a and 153b, and main station optical

signal receiving unit

154a and 154b.

Antenna part

150a and 150b receive and frequency division multiplex all radio waves with a plurality of frequencies from AP93a to 93e emission, and the signal that output is produced is to wireless signal transmission/receiving unit 151a and the 151b that is connected to the

there.Antenna part

150a and 150b will be the radio wave with a plurality of frequencies from the electrical signal types WLAN conversion of signals of wireless signal transmission/

receiving unit

151a and 151b output also, and it then is launched into AP93a to 93e.Wireless signal transmission/

receiving unit

151a and 151b amplify from the signal of

antenna part

150a and 150b output, and the signal that output is produced is to the signal emission/reception separating part 152a and the 152b that are connected to the there.Wireless signal transmission/

receiving unit

151a and 151b also amplify from the signal of signal emission/

reception separating part

152a and 152b output and with the signal that is produced and output to antenna part 150.

Signal emission/

reception separating part

152a and 152b will output to main station optical signal radiating portion 153a and the 153b that is connected to the there from the signal that is connected to wireless signal transmission/

receiving unit

151a and 151b output there.Signal emission/

reception separating part

152a and 152b will output to wireless signal transmission/receiving unit 151a and the 151b that is connected to the there from the signal that is connected to wireless signal transmission/

receiving unit

154a and 154b output there.

The frequency division multiplex electrical signal types WLAN conversion of signals that main station optical signal radiating portion 153a will export from the signal emission/reception separating part 152a that is connected to the there is a light signal.Main station optical signal radiating portion 153a also arrives substation 20a via optical fiber transmission path 50a emission light signal.Similarly, main station optical signal radiating portion 153b will be a light signal from the frequency division multiplex electrical signal types WLAN conversion of signals that is connected to the signal emission/reception separating part 152b output there.Main station optical signal radiating portion 153b also arrives substation 20b via optical fiber transmission path 50b emission light signal.

Main station optical signal receiving unit 154a will be converted to a WLAN signal (signal of telecommunication) from the light signal of substation 20a emission, and it then is output to signal emission/reception separating part 152a.Similarly, main station optical signal receiving unit 154b will be converted to a WLAN signal (signal of telecommunication) from the light signal of substation 20b emission, and it then is output to signal emission/reception separating part 152b.

The component class of other of the wireless communication system of attention: embodiment 4 is similar to the assembly of embodiment 1, and will not describe.

Hereinafter, will the operation of the wireless communication system of embodiment 4 be described.Attention: the class of operation that is different from main website 35 execution of embodiment 4 is similar to the operation of embodiment 1, and will not describe.

The operation of the wireless communication system of embodiment 4 be will describe, wherein zone C and D arrived via main website 35 and

substation

20a and 20b from Ethernet (R) signal of external network input.

The class of operation of SW70 is similar to those operations of embodiment 1, and will not describe.In view of AP by the emission of the cable among the embodiment 1 WLAN signal to main website 10, the AP93 of embodiment 4 launches the WLAN signal to main website 35 with the form of radio wave with frequency of distributing to AP93.

Here, the antenna part 150a of main website 35 receives and frequency division multiplex all radio waves from AP93a to 93e emission, and the signal of exporting as electrical signal types WLAN signal that is produced arrives wireless signal transmission/receiving unit 151a.In response to this, wireless signal transmission/receiving unit 151a makes the electrical signal types WLAN signal that obtains through being subject to processing, and for example amplify or the like, and the signal that output is produced is to signal emission/reception separating part 152a.

The electrical signal types WLAN signal that signal emission/reception separating part 152a output obtains is to main station optical signal radiating portion 153a.Next, main station optical signal radiating portion 153a is a light signal with the electrical signal types WLAN conversion of signals that obtains, and it then is transmitted into substation 20a via optical fiber transmission path 50a.As a result, can arrive the zone C at 20a place, substation from all signals of AP93a to 93e output.Attention: antenna part 150b, wireless signal transmission/receiving unit 151b, signal emission/reception separating part 152b, main station optical signal radiating portion 153b and main station optical signal receiving unit 154b carry out and aforesaid those part identical operations.As a result, can arrive the region D at 20b place, substation from all signals of AP93a to 93e output.As a result, whether tube terminal is not present in zone C or D, and terminal C or D can be from the external network received signals.

Next, will describe the operation of wireless communication system, wherein the data from terminal C emission are launched into external network via AP93a.

Terminal C finishes communication via AP93a, therefore, has WLAN signal corresponding to the frequency of AP93a to substation 20a with the emission of the form of radio wave.Attention: this class of operation is similar to those operations of embodiment 1, and will not describe further.

Next, substation 20a receives and is converted to light signal to the radio wave from terminal C emission, and it then is transmitted into main website 35 by Optical Fiber Transmission cable 50a.Attention: this class of operation is similar to those operations of embodiment 1, and will not describe further.

Receive from the optical signals main station optical signal receiving unit 154a of substation 20a emission.Main station optical signal receiving unit 154a is converted to electrical signal types WLAN signal with the light signal that obtains, and it then is output to signal emission/reception separating part 152a.Attention: electrical signal types WLAN signal is the signal that has corresponding to the frequency of AP93a.

Next, the electrical signal types WLAN signal of signal emission/reception separating part 152a output acquisition is to wireless signal transmission/receiving unit 151a.

Next, wireless signal transmission/receiving unit 151a makes the electrical signal types WLAN signal that obtains through being subject to processing, and for example amplify or the like, and the signal that output is produced is to antenna part 150a.In response to this, antenna part 150a is a radio wave with electrical signal types WLAN conversion of signals, and it then is output to AP93a to 93e.Attention: as mentioned above, electrical signal types WLAN signal is the signal that has corresponding to the frequency of AP93a, and therefore, the radio wave that conversion WLAN signal obtains also has the frequency corresponding to AP93a.

In response to this, each AP93a to 93e receives from the radio wave type WLAN signal of main website 35 emissions.Here, each AP93a to 93e is assigned with the frequency with the signal that used.Therefore, each AP93a to 93e can not receive the signal that is different from the signal with the frequency of distributing to the there.Therefore, only can receive via the radio wave WLAN signal of substation 20a and main website 35 emissions from terminal C by AP93a.

The AP93a that receives radio wave WLAN signal is Ethernet (R) signal with the conversion of signals that receives, and it then is output to SW70.Thereafter, SW70 output Ethernet (R) signal is to external network.Adopt above-mentioned operation, the signal of exporting from terminal C is launched into external network.

Next, will the situation that terminal transmits information to terminal D be described.Here, the description of operation is based on the supposition of terminal C use AP93a executive communication when terminal D is utilized the AP93b executive communication.

In this operation, via substation 20a, main website 35 and AP93a are transmitted into SW70 from the WLAN signal of terminal C emission.Here, the class of operation that arrives substation 20a up to the WLAN signal from terminal C emission is similar to wherein that terminal C transmits information to the operation of the above-mentioned situation of external network, and will not describe.

Next, as in embodiment 1, SW70 determines that based on Ethernet (R) signal that obtains with by the network configuration that SW70 managed the output destination of Ethernet (R) signal is AP93b.Thereafter, the WLAN signal by terminal C emission is via AP93b, and main website 35 and substation 20b are transmitted into terminal D.Attention: in this case, AP93b, the operation described when class of operation of main website 35 and substation 20b is similar to embodiment 4 beginnings promptly wherein from Ethernet (R) the signal arrival zone C of external network input and the operation of D, and will further not describe.

As mentioned above, according to the wireless communication system of embodiment 4, antenna part 150, wireless signal transmission/receiving unit 151, signal emission/reception separating part 152, main station optical signal radiating portion 153 and main station optical signal receiving unit 154 are offered each substation 20 respectively.Therefore, when additional substation 20 is provided, the antenna part that is used for substation 20 150 of another group, wireless signal transmission/receiving unit 151, signal emission/reception separating part 152, main station optical signal radiating portion 153 and main station optical signal receiving unit 154 need be added to main website 35.In other words, when antenna part 150, wireless signal transmission/receiving unit 151, signal emission/reception separating part 152, when main station optical signal radiating portion 153 and main station optical signal receiving unit 154 are provided in addition, the antenna part 150 in other substation 20, wireless signal transmission/receiving unit 151, signal emission/reception separating part 152 needn't be done any variation in main station optical signal radiating portion 153 and the main station optical signal receiving unit 154.As a result, Fu Jia substation 20 can easily be installed.In addition, antenna part 150, wireless signal transmission/receiving unit 151, signal emission/reception separating part 152, main station optical signal radiating portion 153 and main station optical signal receiving unit 154 are provided explicitly with corresponding substation 20, so that do not sneak into main website 35 from the signal of substation 20.As a result, according to the wireless communication system of embodiment 4, for example the problem of interference between signals or the like can not appear at main website 35.

In addition, according to the wireless communication system of embodiment 4, as the wireless communication system of embodiment 1, the carrying capacity of AP can freely be given each zone.Attention: it is the same that erect image is similar to embodiment 1, and the quantity in zone and the quantity of AP are not limited to those shown in the numeral.

In addition, similar to embodiment 1 according to the wireless communication system of embodiment 4, zone C or region D can receive the signal of expectation.Therefore, even when terminal moves to another zone from a zone, the connection that the user needn't reset terminal.As a result, AP93 does not need roaming function.

In addition, according to the communication system of embodiment 4, can obtain effect similar to Example 1.

(embodiment 5)

Hereinafter, wireless communication system according to embodiments of the invention 5 will be described with reference to the drawings.The wireless communication system of embodiment 5 is the combination of the wireless communication system of the wireless communication system of embodiment 2 and embodiment 4.Particularly, in the wireless communication system of embodiment 5, AP and main website utilize radio wave to communicate each other, and in addition, the substation main website exports from the WLAN signal of each AP output to each zone selectively.The configured in one piece of the wireless communication system of attention: embodiment 5 is similar to the configured in one piece of embodiment 4, and therefore, Figure 21 is cited.

SW70 and AP93a to 93e are similar to those parts of embodiment 4, and will not describe.In addition,

substation

20a and 20b are similar to the substation of embodiment 1, and therefore Fig. 3 is cited.

To the main website 35 of the wireless communication system of embodiment 5 be described here.Be similar to the main website 10 of embodiment 2, the main website 35 of embodiment 5 will be a light signal from the electrical signal types WLAN conversion of signals of AP93a to 93e input, and export light signal selectively to each substation 20a and 20b.More particularly, main website 10 is provided with the output light signal to one of them of substation 20a and substation 20b or they according to the user.Attention: be different from the main website 10 of embodiment 2, the main website 35 of embodiment 5 utilizes radio wave and AP93a to 93e to communicate.Hereinafter, the main website 35 of embodiment 5 will be described with reference to Figure 23.Figure 23 is a block diagram, and the internal configurations according to the main website 35 of embodiments of the invention 5 is shown.

The main website 35 of embodiment 5 is identical with the main website 35 of embodiment 4, but the main website 35 of embodiment 5 further comprises signal selecting part and divides 155a and 155b (in claims, signal selecting part divides 155a and 155b to be called choice device together), part 156 and importation 157 are set.Attention: the assembly execution with identical label adds identical operations among Figure 22 with Figure 23, and will not describe.

Here, signal selecting part divides 155a and 155b, part 156 is set and importation 157 will be described with reference to the accompanying drawings.Figure 24 illustrates signal selecting part to divide 155a and 155b, and the figure of the configuration of part 156 and importation 157 is

set.Divide

155a and 155b although Figure 24 illustrates signal selecting part, signal selecting part divides 155a and 155b to have identical configuration.Therefore, the configuration that signal selecting part only divides 155a will be described in detail.

Signal selecting part divides 155a to comprise separating part 1500a, bandpass filters 1501a to 1501e, connector 1502a and built-up section 1503a.Signal selecting part divides 155a according to the setting that part 156 is set, and the part that output has the input WLAN signal of frequency f 1 to f5 arrives main station optical signal radiating portion 153a.

Separating part 1500a will launch/receive the frequency with f1 to f5 of separating part 152 outputs from signal electrical signal types WLAN Signal Separation is five signal lines.Bandpass filters 1501a to 1501e separately only the signal of the oriented there of the output device frequency of distributing to connector 1502a.Particularly, band pass filter 1501a output has the electrical signal types WLAN signal of f1 frequency to connector 1502a.Band pass filter 1501b output has the electrical signal types WLAN signal of f2 frequency to connector 1502a.Band pass filter 1501c output has the electrical signal types WLAN signal of f3 frequency to connector 1502a.Band pass filter 1501d output has the electrical signal types WLAN signal of f4 frequency to connector 1502a.Band pass filter 1501e output has the electrical signal types WLAN signal of f5 frequency to connector 1502a.

Connector 1502a comprises change over switch 1504a to 1504e, and based on the setting that part 156 is set, output from the part of the signal of band pass filter 1501a to 1501e output to built-up section 1503a.Change over switch 1504a to 1504e is connected to corresponding separately band pass filter 1501a to 1501e, and switching is from the electrical signal types WLAN signal of the frequency with f1 to f5 of band pass filter 1501a to 1501e output.Particularly, one of them the signal that is input to the change over switch 1504a to 1504e that transferred to open is output to built-up section 1503a.One of them the signal that is input to the change over switch 1504a to 1504e that transfers the pass to does not output to built-up section 1503a.

Built-up section 1503a carries out frequency division multiplex to the signal from connector 1502a output, and the signal that output is produced is to main station optical signal radiating portion 153a.Part 156 is set has ON/OFF setting change over switch 1504a to 1504e.Importation 157 is that user 15 adopts it that open/close equipment of change over switch 1504a to 1504e is set in part 156 is set.Attention: signal selecting part divides 155b to have to be similar to the configuration that signal selecting part divides 155a, and will not describe.

Hereinafter, will the operation of wireless communication system of the structure like this of embodiment 5 be described.The operation of the wireless communication system of the operation of the wireless communication system of attention: embodiment 5 and embodiment 4 has many public parts, therefore only describes operations different between them here.

To describe when operation selected from the signal of external network emission and the wireless communication system of the embodiment 5 of execution when outputing to each zone.

Referring to Figure 21, Ethernet (R) signal is input to SW70 from the outside.SW70 is based on exporting the signal of acquisition to AP93a to 93e by the network configuration that SW70 managed.Attention: this operation is identical with the operation of the SW70 of embodiment 1, and will further not describe.

Next, for the electrical signal types WLAN signal of a frequency (one of them of f1 to f5) is arranged, it is assigned to AP to each AP93a to 93e with the conversion of signals that obtained, and output as the signal that is produced of radio wave to main website 35.Attention: this operation is same identical with those operations of embodiment 1, and will not describe further.

Antenna part 150a receives from all radio waves of AP93a to 93e emission, and is electrical signal types WLAN signal with conversion of signals, and it then is output to wireless signal transmission/receiving unit 151a.Similarly, antenna part 150b receives from all radio waves of AP93a to 93e emission, and is electrical signal types WLAN signal with conversion of signals, and it then is output to wireless signal transmission/receiving unit 151b.

The output signal that makes wireless signal transmission/

receiving unit

151a and 151b stands a processing such as amplification or the like, and the signal that output is produced is to the signal emission/reception separating part 152a and the 152b that are connected to the there.

Next, signal selection/

reception separating part

152a and 152b will output to from the signal of the wireless signal selections/receiving unit 151a that is connected to the there and 151b output and be connected to the signal selecting part and divide 155a and 155b there.In response to this, the electrical signal types WLAN signal that signal selecting part divides 155a and 155b acquisition to have the frequency of f1 to f5.

At first, will the operation that signal selecting part divides 155a be described with reference to Figure 24.The electrical signal types WLAN signal that signal selecting part divides the separating part 1500a of 155a to separate the output with frequency f 1 to f5, and the signal that output is produced is to band pass filter 1501a to 1501e.Each acquisition of band pass filter 1501a to 1501e has the electrical signal types WLAN signal of f1 to f5 frequency.

Next, band pass filter 1501a output has the electrical signal types WLAN signal of f1 frequency to change over switch 1504a.Band pass filter 1501b output has the electrical signal types WLAN signal of f2 frequency to change over switch 1504b.Band pass filter 1501c output has the electrical signal types WLAN signal of f3 frequency to change over switch 1504c.Band pass filter 1501d output has the electrical signal types WLAN signal of f4 frequency to change over switch 1504d.Band pass filter 1501e output has the electrical signal types WLAN signal of f5 frequency to change over switch 1504e.

Here, change over switch 1504a to 1504e is transferred to ON/OFF according to being provided with of part 156 is set.In Figure 24, change over switch 1504a, 1504b, 1504d and 1504e are transferred to open, and change over switch 1504c is transferred to the pass.Therefore, connector 1502a output has frequency f 1, f2, and the electrical signal types WLAN signal of f4 and f5 is to built-up section 1503a.Built-up section 1503a is to having frequency f 1, f2, and the electrical signal types WLAN signal of f4 and f5 carries out frequency division multiplex, and the signal that output is produced is to main station optical signal radiating portion 153a.Main station optical signal radiating portion 153a is converted to light signal with multiplex signal, and it is outputed to substation 20a successively via optical fiber transmission line 50a.As a result, from AP93a, 93b, the signal of 93d and 93e output arrives zone C.

Next, will the operation that signal selecting part divides 155b be described.Signal selecting part divides the operation of 155b to divide the operation of 155a identical with signal selecting part basically, and therefore only different parts will be described.

The operation of separating part 1500b and band pass filter 1501f to 1501j is identical with the operation of separating part 1500a and band pass filter 1501a to 1501e, and will not describe.

Here, change over switch 1504f to 1504j is transferred to ON/OFF according to being provided with of part 156 is set.In Figure 24, change over switch 1504f and 1504h are transferred to open, and change over switch 1504g, 1504i and 1504j are transferred to the pass.Therefore, connector 1502b output has the electrical signal types WLAN signal of frequency f 1 and f3 to built-up section 1503b.Built-up section 1503b carries out frequency division multiplex to the electrical signal types WLAN signal with frequency f 1 and f3, and the signal that output is produced is to main station optical signal radiating portion 153b.Main station optical signal radiating portion 153b is converted to light signal with multiplex signal, and it then is transmitted into substation 20b via optical fiber transmission line 50b.As a result, the signal from AP93a and 93c output arrives region D.

Attention: the terminal C among

substation

20a and 20b and zone C and the D and the class of operation of the communication period between the D are similar to those operations of embodiment 2 or the like, and will not describe.

Attention: the class of operation of the wireless communication system of the embodiment 5 that carries out when terminal C transmits signals to external network is similar to those operations of embodiment 4, and will not describe.

As mentioned above, according to the wireless communication system of embodiment 5, be similar to embodiment 2, the carrying capacity of AP93 can be effectively utilized.

In addition, according to the wireless communication system of embodiment 5, be similar to embodiment 2, only each regional needed WLAN signal is exported selectively, makes the fail safe that improves wireless communication system become possibility thus.

Attention: in embodiment 4 and 5 by AP93 output signal frequency f1 to f5 comprise 2.412GHz (IEEE802.11b standard) for example, 2.437GHz (IEEE802.11g standard) and 5.17GHz (IEEE802.11a standard), these are centre frequencies.

In traditional wireless communication system, support the AP of IEEE802.11b standard need be placed in each zone, here, so that IEEE802.11b standards service to two zone is provided with two wireless-communication-capable area.

In addition, for IEEE802.11g standards service to two zone is provided, except that IEEE802.11b standard A P, need the AP of the IEEE802.11g standard of placing.

Yet in embodiment 4 and 5, if at least one AP establishes for each IEEE802.11b standard and IEEE802.11g standard, the service of each standard can be provided in a plurality of zones.

(the exemplary configuration of the main website of embodiment 5)

Another exemplary configuration of the main website 35 of embodiment 5 will be described with reference to the drawings.In the main website of in embodiment 5, describing 35, selected and output to substation 20a and/or 20b according to being provided with of user from the electrical signal types WLAN signal of each AP93a to 93e output.In order to carry out such selection, signal selecting part divides 155 to be provided.

Yet aforesaid signal selection method is not limited to divide 155 performed methods by signal selecting part.Particularly, be different from the main website 35 of Figure 23, the main website 35 of Figure 25 does not have to receive the radio wave from AP93a to 93e emission.In other words, the main website 35 of Figure 25 receives only the radio wave WLAN signal that outputs to substation 20a and 20b.Hereinafter, will describe another exemplary configuration of the main website 35 of embodiment 5 with reference to Figure 25 in detail.

As shown in Figure 25, the main website 35 of this examples of configurations comprises wireless signal transmission/

receiving unit

151a and 151b, signal emission/

reception separating part

152a and 152b, main station optical

signal radiating portion

153a and 153b, main station optical

signal receiving unit

154a and 154b,

directional antenna part

250a and 250b, antenna control section 251 and importation 252.

Here, wireless signal transmission/

receiving unit

151a and 151b, signal emission/

reception separating part

152a and 152b, main station optical

signal radiating portion

153a and 153b, and main station optical signal receiving unit 154a is identical with those parts of embodiment 5 with 154b, and will not describe.Therefore, hereinafter,

directional antenna part

250a and 250b will be described, and antenna control section 251 and importation 252.

Directional antenna part

250a and 250b comprise a plurality of antennas with so-called directivity.Particularly,

directional antenna part

250a and 250b comprise five antennas that are used to receive from the radio wave of AP93a to 93e emission.Each of five antennas has directivity, and antenna can communicate with corresponding of AP93a to 93e when AP is positioned at specific direction so that have only.

Antenna control section 251 is included in the direction of the antenna among directional antenna part 250a and the 250b according to user's input control, to allow to carry out and the communicating by letter of the AP93a to 93e that expects.Importation 252 is input units, and which and the directional antenna part 250a and the 250b that are used to specify AP93a to 93e communicate.

Hereinafter, will so operation of the main website 35 of this examples of configurations of structure be described tout court.Attention: SW70, AP93a to 93e, the class of operation of

substation

20a and 20b and terminal C and D is similar to those operations of embodiment 5, and therefore, only the operation of the main website 35 of Figure 25 will be described.

At first, will signal is transmitted into zone C and D from external network each situation be described.

Ethernet (R) signal is input to SW70 from external network.SW70 is based on being selected by the network configuration that SW70 managed and exporting Ethernet (R) signal to AP93a to 93e.Each AP93a to 93e is an electrical signal types WLAN signal with Ethernet (R) conversion of signals that obtains, and it then is output to main website 35 as radio wave.These class of operation are similar to those operations of embodiment 1 to 5, and will not describe further.

Next, each antenna in the directional antenna part 250 of main website 35 receives from the radio wave of the predetermined emission of AP93a to 93e selectively according to the control of antenna control section 251.Here, for example directional antenna part 250a receives from AP93a as one, 93b, and the radio wave that 93d and 93e launch, and directional antenna part 250b is from AP93a and 93c received signal.

Directional antenna part

250a and 250b are converted to electrical signal types WLAN signal with the radio wave of each reception, and this signal that is produced of frequency division multiplex, and the output multiplex signal is to wireless signal transmission/receiving unit 151a and 151b.Wireless signal transmission/

receiving unit

151a and 151b, signal emission/

reception separating part

152a and 152b, main station optical

signal radiating portion

153a and 153b class of operation subsequently is similar to those operations of embodiment 4 or 5, and will not describe.Adopt aforesaid operations, in embodiment 5, from AP93a, 93b, the electrical signal types WLAN signal of 93d and 93e emission arrive zone C and from the electrical signal types WLAN signal arrival region D of AP93a and 93c output.

Attention: the class of operation of the main website 35 of this examples of configurations is similar to those operations of embodiment 4 or 5 and will describe when terminal C transmits signals to external network.

As mentioned above, the wireless communication system that is employed of the main website 35 of this examples of configurations no longer must divide separation signal in 155 at signal selecting part.Therefore do not have signal power loss to take place, otherwise signal power loss will take place when separation signal.In addition, even the frequency band of the quantity of AP93 or use is changed, main website 35 can need not to change its configuration and the position that adapts to change.

Another exemplary configuration of the main website 35 of embodiment 5 will be described with reference to the drawings hereinafter.The main website 35 of this examples of configurations has the function that the terminal of making adopts new communication route to begin to communicate by letter, and when terminal moves to another zone from a zone, in response to communication request new communication route is set.Figure 26 is a block diagram, and the configuration of the main website 35 of this examples of configurations is shown.

The main website 35 of this examples of configurations comprises wireless signal transmission/

receiving unit

151a and 151b, signal emission/

reception separating part

152a and 152b, main station optical

signal radiating portion

153a and 153b, main station optical

signal receiving unit

154a and 154b,

directional antenna part

250a and 250b,

antenna controling circuit

260a and 260b, channel is selected control section 261 and importation 262.

Here, wireless signal transmission/

receiving unit

151a and 151b, signal emission/

reception separating part

152a and 152b, main station optical

signal radiating portion

153a and 153b, main station optical signal receiving unit 154a is identical with those parts of the main website 35 of Figure 25 with 250b with 154b and directional antenna part 250a, and will not describe.

Antenna controling circuit

260a and 260b select the control of control section 261 to control the direction that is included in each antenna among directional antenna part 250a and the 250b according to channel, with communicating by letter of beginning and the AP93a to 93e that expects.Channel selects control section 261 to have the area information shown in Figure 27.Importation 262 is input units, and which and the directional antenna part 250a and the 250b that are used to specify AP93a to 93e communicate.

Here, area information will be described.Area information indication has provided signal and which of AP93a to 93e to be output to the zone that

substation

20a and 20b exist from.Particularly, in the area information of Figure 27, signal is from AP93a, and 93b, 93d and 93e output to the zone C under the 20a of substation, and signal outputs to region D under the 20b of substation from AP93a and 93c.

Here, general Wireless LAN system has an agreement, and when not receiving signal from any one AP93 with convenient terminal, terminal can not transmit signals to AP93.Therefore, when terminal be moved to one new when regional, wherein having the frequency signal that is used by terminal can not be received via substation 20a or b from AP93, terminal can not be launched the request that begins to communicate by letter to main website 35.

Therefore, AP93 emission has the signal of the frequency that possibility used continuously by terminal to

substation

20a and 20b, so that terminal may transmit.Concrete will be described with reference to Figure 27 for example.As shown in Figure 27, the signal that has by the f1 frequency of AP93a output can be received by substation 20a and 20b.Therefore, the channel that is used in the 2.4GHz frequency band among the prevailing IEEE802.11b of Wireless LAN system is assigned to the signal with f1 frequency.As a result, the signal with the frequency that can be used by terminal arrives zone C and the D that is formed by

substation

20a and 20b continuously.Terminal response begins request in this signal emission communication.So, terminal can receive the signal with frequency of being used continuously by terminal from the substation the mobile zone afterwards 20, and in response to this signal, can launch communicates by letter begins to ask.

Hereinafter, the operation of wireless communication system of the main website 35 of this examples of configurations that comprises structure like this will be described with reference to this accompanying drawing.Figure 28 is a flow chart, and the operation that terminal E and channel are selected control section 261 is shown, and wherein terminal E is ready to begin communication at terminal E after region D moves to zone C.

When terminal E was moved to zone C, terminal E arrived main website 35 (step S1) via substation 20a and optical fiber transmission line 50a emission to the request of area information.In this step, terminal E utilizes the WLAN signal with frequency f 1 to launch request in response to the WLAN signal that has by the f1 frequency of AP93a output.

In response to this, main station optical signal receiving unit 154a receives this request (step S11).This request is transformed into electrical signal types WLAN signal from light signal, it then is output to signal emission/reception separating part 152 and channel is selected control section 261.

Channel selects control section 261 in response to the request emitting area information (step S12) that obtains.Particularly, main station optical signal radiating portion 153 is converted to light signal with area information, and it then is output to substation 20a.Thereafter, area information is via optical fiber transmission line 50a and substation 20a incoming terminal E.So, terminal E receiving area information (step S2).

The terminal E reference zone information (step S3) of receiving area information.Terminal E determines whether can be used to zone (step S4) under the terminal E corresponding to the AP93 that is used to the frequency of region D before moving.Particularly, channel selects control section 261 to determine in area information, and whether circulation is present in the scope of the AP93 with the frequency that will be used by terminal E.For example, in Figure 27, when terminal E uses f1 in region D, and it wishes terminal E equally when zone C frequency of utilization f1, determines whether circulation is present in the f1 scope of substation 20a.When f3 is used to region D and wishes at zone C frequency of utilization f3 equally, determine whether circulation is present in the f3 scope of substation 20a.Here, when determining to be affirmed, this process forwards step S6 to.When determining whether that regularly this process forwards step S5 to.

Here, when determining to be affirmed, terminal E begins communication (step S6).In Figure 27, the positive result of determining can mean that terminal E has used the signal executive communication with frequency f 1 in region D.Attention: in this case, terminal E is via the AP93 executive communication with the frequency (being f1 under Figure 27 situation) that is used to region D.

When definite E was negated, terminal E had been used to beginning communication request that the frequency of region D is used to main website 35 via substation 20a and optical fiber transmission line 50a emission.Attention: the frequency of the signal of Shi Yonging identical with the frequency of the signal that is used to step S1 (for example, the signal in the 2.4GHz of IEEE802.11b frequency band) here.In Figure 27, the result who negates who determines can mean that terminal E has used the signal executive communication with frequency f 3 in region D.In response to this, main website 35 utilizes main station optical signal receiving unit 154a to receive this request (step S13).Main station optical signal receiving unit 154a is converted to electrical signal types WLAN signal with request, and it then is output to channel and selects control section 261.

Channel selects control section 261 to specify the frequency of the WLAN signal of the communication that is used to ask, and specifies the AP93 (AP93c in Figure 27) corresponding to specified frequency (f3 in Figure 27).And channel selects control section 261 to make the direction (step S14) of antenna controling circuit 260a control corresponding to the antenna of the appointment AP93 of the antenna of directional antenna part 250a.As a result, channel selects the WLAN signal from AP93 of control section 261 appointments to be output to zone C under the 20a of substation.

Next, channel is selected control section 261 update area domain informations (step S15).Particularly, channel selects control section 261 to register the information that is fit to be output to substation 20a from the signal of specifying AP93 output in area information.Thereafter, terminal E begin to communicate by letter with main website 35 (step S6 and S16).

As mentioned above, in the wireless communication system that the main website 35 of this examples of configurations is employed, the signal (the WLAN signal with the f1 frequency in this examples of configurations) with the frequency that can be used by all terminals is transmitted into zone C and D from AP93 via

substation

20a and 20b continuously.Therefore, terminal can be in the zone after moving, and reception has can be by the signal of the continuous frequency of using of all terminals.As a result, the signal that might avoid not having usable frequency after moving is launched into regional situation, so that do not have terminal to launch to be used to the request signal that begins to communicate by letter.

Attention: in this examples of configurations, area information only comprises index signal is transmitted into each regional information from which AP93.Area information is not limited to this.For example, area information can comprise the address such as IP, the number of system's appointment, the information of charge information or the like.

Attention: in embodiment 1 to 5, when in predetermined a period of time, when communication takes place between AP93 and substation 20, may determine not have to carry out and the terminal of communicating by letter of AP93 is present in affiliated zone, substation 20, and the communication between AP93 and the substation 20 can be moved to end.As a result, might prevent that unnecessary signal is launched into each zone, improve fail safe whereby, the adding of extra noise can be suppressed, and power consumption can be reduced.

Attention: terminal utilizes the request signal of IEEE802.11b to begin communication, but the communication means that is used to ask is not limited thereto.For example, be exclusively used in the communication route that communication begins to ask,, can be set between substation 20 and the terminal such as bluetooth (R) or the like.As a result, no longer need substation 20 to transmit signals to this zone continuously.

(exemplary system configuration)

Although the network switch, AP and main website are described as being configured among the embodiment 1 to 3 of separating, and they can be integrated in together.Figure 29 is a block diagram, and the exemplary configuration that AP and main website are integrated in wireless signal optical transmission central apparatus together is shown.

Wireless signal optical transmission central apparatus comprises AP part 92a to 92k and master function part 40.AP part 92a to 92k has the substation 20 that is similar to embodiment 1 to 3 and the function of its above-mentioned examples of configurations.Master function part 40 has and is similar to embodiment 1 to 3 and the main website 10 of its above-mentioned examples of configurations and the function of AP91.Therefore, the detailed configuration of these unit and operation will not be described.

Next, another exemplary configuration of wireless signal optical transmission central apparatus will be described with reference to Figure 30.Figure 30 is a block diagram, and another exemplary configuration of wireless signal optical transmission central apparatus is shown.The wireless signal optical transmission central apparatus of this examples of configurations comprises the network switch that is integrated in together, AP and main website.

Wireless signal optical transmission central apparatus comprises network switch part 75, AP part 92a to 92k, and master function part 40.The wireless signal optical transmission central apparatus of the wireless signal optical transmission central apparatus of Figure 30 and Figure 29 differs from one another aspect being provided with of network switch part 75.Here, network switch part 75 has the network switch identical functions with embodiment 1 to 3.Therefore, network switch part 75, AP part 92a to 92k, and the configuration of master function part 40 and the operation will not describe.

According to above-mentioned two examples of configurations, wireless signal optical transmission central apparatus comprises AP function and master function, makes thus to utilize the optimum signal form to obtain to connect and connect up to become possibility, therefore, has reduced cost generally.

When AP was the equipment that separates with main website 10, high-frequency signal need be taken the outside, and they need be connected via coaxial cable for high frequency or the like.On the other hand, when wireless signal optical transmission central apparatus had both AP function and master function, short cable can advantageously be used or the like.

In addition, according to above-mentioned two examples of configurations, if wireless signal optical transmission central apparatus has AP function and master function, the signal converting diversity feature is easily realized.In addition, can the transfer signal converting diversity of three or more signals is easily obtained.In addition, might easily obtain to select diversity, so that two or more signals of demodulation simultaneously, and the signal (in general A P, do not carry out and select diversity) of selecting to have first water.

Attention: in the wireless signal optical transmission central apparatus of Figure 30, preferably, the transmission line of connection network switch part 75 and external network has the bigger transmission capacity of summation than the emission capacity of AP part 92a to 92k.This may not be absolute condition, because network switch part 75 has communication control function.In addition, as a signaling interface, typical Ethernet (R) signal can be used, yet, if light signal is output as a medium converter interface, wireless signal light launching centre equipment can obtain long-distance transmissions, so that can be installed in the remote place of the position that is positioned at away from the network equipment.

Figure 31 (a) is a block diagram, and the exemplary configuration of wireless signal optical transmission central apparatus and substation 20 is shown, the network switch in wireless signal optical transmission central apparatus wherein, and the main website 10 of AP and Fig. 2 is integrated.The function class of each assembly is similar to those assemblies of the main website 10 of above-mentioned examples of configurations and Fig. 2, and will not describe.In addition, when signal from the substation 20 when being transmitted into external network and the class of operation of each assembly of when external network is transmitted into substation 20, carrying out of signal be similar to embodiment 1 operation, and will not describe.

Here, the wireless signal optical transmission central apparatus of Figure 31 (a) is equipped with control section 150.Control section 150 Control Network switch segments 75, AP part 92a to 92k, the setting of transmit processing section 121 and received signal processing section 111 is so that control signal stream.Control section 150 is according to each assembly (for example, be provided with in the wireless communication system communication route) is set by the instruction from Control on Communication signal 151 indications of outside input.The setting of route, control section 150 is collected the management information of the state of relevant wireless signal optical transmission central apparatus and substation in wireless communication system, and the setting to the there is provided.Control section 150 also have one the management controlled function, with utilize one such as, for example the agreement of SNMP and outside communicate.

Here, Control on Communication signal 151 serves as the signal that is used to manage the signal of control and is used for the route setting.When communication occurred between external network and Ethernet (R) signal, Control on Communication signal 151 can be input to wireless signal optical transmission central apparatus from network switch part 75.Therefore, in this case, Control on Communication signal 151 can be launched via special circuit, therefore is different from Figure 39.

The wireless signal optical transmission central apparatus of Figure 31 (a) comprises network switch part 75, and therefore, AP part 92a to 92k and network switch part 75 can be connected with the optimum signal form.More particularly, as the interface of this part, the PCI form, MII form or other unprocessed form can be employed, and making thus to improve performance generally and reduce cost becomes possibility.

CPU is the inherent requirement of AP control institute.Usually, each of AP part 92a to 92k comprises a CPU.Yet, when a plurality of AP part 92a to 92k be arranged at the identical equipment shown in Figure 39 in the time, AP part 92a to 92k can utilize single cpu (control section 150) to control.Attention: control section 150 can use single cpu or a plurality of CPU to finish.

Attention: might in the wireless signal optical transmission central apparatus of Figure 20, provide control section 150 in the mode shown in Figure 31 (a).Yet in this case, the network switch is a separated portions, so that the network switch can not Be Controlled.

(diversity feature)

Here, diversity feature can be provided in the main website 10 of the wireless communication system of embodiment 1 to 5.Hereinafter, the wireless communication system that description is comprised main website 10 with diversity feature.Attention: in the following description, suppose that the main website 10 of the embodiment 2 of Figure 13 is provided with diversity feature.Therefore, the configuration of wireless communication system is identical with Fig. 1.

Here, main station optical

signal radiating portion

102a and 102b, main station optical signal receiving unit 112a and 112b, processing section 121 transmits, importation 141 and the operation of part 142 is set and those operations of embodiment 2 similar, and will not describe.Particularly, when diversity feature was provided, the operation of AP91a to 91e and received signal processing section 111 was different from those operations of embodiment 2.Therefore, AP91a to 91e and received signal processing section 111 will be described in detail.

AP91a to 91e has the function of measurement from the intensity of the electrical signal types WLAN signal of main website 10 outputs.In addition, AP91a to 91e has the function of emission tandem signal with the signal that is used for when measure signal intensity is lower than predetermined value switching and exports from main website 10.

The received signal processing section 111 of supposing main website 10 receives tandem signal from AP91a to 91e, and receives the signal with identical content from two or more substations 20.In this case, replace the current signal that is launched into AP91a to 91e, received signal processing section 111 another signals with identical content of emission are to AP91a to 91e.

Hereinafter, description is comprised the operation of wireless communication system of the main website 10 of structure like this.Attention: here, as the exemplary operation of a wireless communication system, the signal of exporting from AP91a is transmitted into

substation

20a and 20b by the processing section 121 that transmits.In response to this, AP91a is from

substation

20a and 20b received signal.

The electrical signal types WLAN signal that AP91a receives by substation 20a emission via main website 10, and the intensity of measurement electrical signal types WLAN signal.When the intensity of the electrical signal types WLAN signal of measuring during less than predetermined value, AP91a emission tandem signal is to main website 10, so that the electrical signal types WLAN signal that main website 10 switchings will be launched by main website 10.

Tandem signal is received in the processing section 121 that transmits of main website 10, and arrives received signal processing section 111 via part 142 is set.Here, whether the received signal processing section 111 electrical signal types WLAN signal determining to be launched into AP91a and have an identical content is from two or more substations emissions.When two or more such electrical signal types WLAN signals are presented, be launched into AP91a from the substation that is different from the current demand signal of launching electrical signal types WLAN signal 20 emissions and that launch from terminal C.Attention: here, substation 20b will be transmitted into AP91a from the signal that terminal C receives via main website 10.

Whether the intensity that AP91a measures the electrical signal types WLAN signal that receives is higher than predetermined value.When measure signal intensity was lower than predetermined value, tandem signal was transmitted into main website once more.Process subsequently be similar to aforesaid those.

By repeating aforesaid operations, AP91a can receive the signal of the signal quality with predetermined or higher grade.

Attention: the quantity of substation 20 is assumed that two here, but is not limited thereto.When the quantity of substation 20 is three or more and to have to come the signal of self terminal C be when being different from main website 10 to possibility that the substation 20 of substation 20a that it transmits and 20b receives, except that signal, can be transferred and be exported from the signal of substation 20 from substation 20a and 20b.In this case, received signal processing section 111 only needs to be configured to operate in such a way.

Notice that, the main website 10 of the embodiment 2 of Figure 13 is described as the exemplary main website 10 that uses diversity feature here, but the main website 10 that uses diversity feature is not limited thereto.More specifically, diversity feature can be used to all main websites 10 of embodiment 1 to 5.

The exemplary wireless communication system that comprises the wireless signal optical transmission central apparatus of using diversity feature will be described with reference to the drawings here.When the above-mentioned main website 10 with diversity feature received signal from same terminal emission via two substations 20, the signal (diversity reception) than hard intensity was selected to have in two signals by main website 10.In contrast, Figure 31 (b) illustrates a kind of wireless communication system, and the substation that receives only wherein has been installed, and the signal receiving function that is used to handle the signal that is received by the substation that receives only is provided in wireless signal optical transmission central apparatus.Hereinafter, will describe wireless communication system in detail with reference to Figure 31 (b).Here, Figure 31 (b) is a block diagram, and the wireless signal optical transmission central apparatus of this examples of configurations and the configuration of substation are shown.

Wireless signal optical transmission central apparatus 1004 comprises network switch part 75, access point section 93-1 to 93-k, received signal processing section 111a and 111b, processing section 121 transmits, light signal emission/receiving unit 132a to 132n, light signal receiving unit 138a to 138n and control section 150.Each substation 20 comprises light signal emission/receiving unit 221, wireless signal transmission/receiving unit 222 and signal transmit/receive antenna part 223.

Here, network switch part 75, received signal processing section 111a, processing section 121 transmits, light signal emission/receiving unit 132, light signal emission/receiving unit 221, wireless signal transmission/receiving unit 222 and signal transmit/receive antenna part 223 are similar to those parts of Figure 31 (a), and will not describe.

Here, the substation 27a to 27n that receives only is typically provided respectively corresponding to substation 20a to 20n.Each substation 27 comprises light signal radiating portion 227, wireless signal receiving unit 228 and signal receiving antenna part 229.Receive only substation 27a to 27n and receive the radio wave type WLAN signal that the terminal from the zone of each corresponding substation 20a to 20n is launched, and received signal is converted to light signal, it then is launched into wireless signal optical transmission central apparatus 1004.Particularly, signal receiving antenna part 229 receives radio wave type WLAN signal.Wireless signal receiving unit 228 will be the form that is suitable for light signal radiating portion 227 from the conversion of signals of signal receiving antenna part 229 outputs.Light signal radiating portion 227 will be a light signal by the conversion of signals of wireless signal receiving unit 228 conversions, and it then is output to main website flashlight transmission center equipment 1004.

Light signal receiving unit 138 in the main website flashlight transmission center equipment 1004 will be converted to electrical signal types WLAN signal from the light signal that receives only substation 227 emissions, and it then is output to the second received signal processing section 111b.The second received signal processing section 111b carries out the operation that is similar to received signal processing section 111a.Particularly, the second received signal processing section 111b is based on the setting of control section 150, selects electrical signal types WLAN signal from light signal receiving unit 138a to 138n output to AP93-1 to 93-k.

The access point section 93 of this examples of configurations has the function of diversity reception, and this is different from the access point section 93 of Figure 31 (a).Particularly, identical electrical signal types WLAN signal is from the substation 20 that is present in same zone and receive only substation 27 and be launched, greater strength or higher signal quality one of having of two signals is launched into Ethernet (R) signal, and it then is output to network switch part 75.

The operation of wireless communication system of the structure like this of Figure 31 (b) will be described hereinafter, tout court.During here, with the terminal emitting radio wave type WLAN signal described from the zone that is present in substation 20b to the operation of signal when access point section 93 stands diversity reception.Other operation is identical with Figure 31 (a), and will not describe.

Substation 20b with receive only substation 27b and be responsible for identical zone, therefore, receive radio wave type WLAN signal from the terminal in identical zone.Substation 20b is a light signal with the radio wave type WLAN conversion of signals that receives, and it then is output to the light signal receiving unit 132b of main website flashlight transmission center equipment 1004.Attention: the class of operation of substation 20b is similar to those operations of having described at Figure 31 (a), and will not describe.

Receiving only substation 27b is light signal with the radio wave type WLAN conversion of signals that receives, and it is outputed to the light signal receiving unit 138b of main website flashlight transmission center equipment 1004 according to reception.Attention: the operation that receives only substation 27b as mentioned above and will not describe.

Here, the light signal receiving unit 132b of receiving optical signals is converted to electrical signal types WLAN signal with light signal, and it then is output to received signal processing section 111a.Received signal processing section 111a outputs to the electrical signal types WLAN signal of output according to the control of control section 150 any one of access point section 93-1 to 93-k.Attention: here, received signal processing section 111a will output to access point section 93-2 from the electrical signal types WLAN signal of light signal receiving unit 132b output.So, the signal from the terminal emission arrives access point 93-2.

The light signal receiving unit 138b of receiving optical signals is converted to electrical signal types WLAN signal with light signal, and it then is output to received signal processing section 111b.Received signal processing section 111a outputs to the electrical signal types WLAN signal of output according to the control of control section 150 any one of access point section 93-1 to 93-k.Attention: here, received signal processing section 111b will output to access point section 93-2 from the electrical signal types WLAN signal of light signal receiving unit 138b output.So, the signal from the terminal emission arrives access point 93-2.

Next, when receiving via the electrical signal types WLAN signal of substation 20b emission with when receiving only the electrical signal types WLAN signal of substation 27b emission, access point section 93-2 determine these two electrical signal types WLAN signals which have bigger intensity or higher signal quality.It is Ethernet (R) signal that access point 93-2 will be defined as selecteed electrical signal types WLAN conversion of signals, and it then is output to network switch part 75.Thereafter, Ethernet (R) signal is output to external network.

As mentioned above, wireless signal optical transmission central apparatus 1004 is equipped with diversity feature, and sizable improvement of signal quality is that can look to and more stable communication can realize whereby.

Attention: the signaling transfer point of aforesaid access point is that typical, commercially availabie access point has.Therefore, such commercially availabie access point access point section 93-1 to 93-k of can be used as wireless signal optical transmission central apparatus 1004 is directly incorporated into to obtain this wireless communication system.

In the wireless communication system of Figure 31 (b), substation 20 with receive only substation 27 and be accommodated in the shell that separates.But the substation 20 that is present in identical communication zone with receive only substation 27 and can be accommodated in the identical shell.

Equally, connecting the optical fiber that receives only substation 27 and main website 10 is illustrated as the optical fiber that separates with the optical fiber that is connected substation 20 and main website 10.In other words, these can utilize single conductor optical fiber to be connected.

The wireless communication system that utilization receives only the substation is not limited to those of Figure 31 (b), and can be used to other wireless communication system according to the present invention.

(the exemplary signal transmitting method among the embodiment 1 to 3)

Hereinafter, with another exemplary signal transmitting method of describing among the embodiment 1 to 3.

In the previous description of embodiment 1 to 3, frequency is that the electrical signal types WLAN signal of wireless frequency (RF signal) is converted into the light signal that frequency is a wireless frequency, and the light signal that is produced is launched.Yet the type of electrical signal types WLAN signal is not limited thereto.More particularly, electrical signal types WLAN signal may be the IF signal.Hereinafter, utilize the launching technique of IF signal to be described in detail.

At first, will be described in the main station optical signal radiating portion 102 of main website 10 of Fig. 2 electrical signal types WLAN signal with reference to Figure 32 and 33 is the situation of IF signal from the RF conversion of signals.Figure 32 is a block diagram, and the detailed configuration of the main station optical signal radiating portion 102 of Fig. 2 is shown.Figure 33 is a block diagram, and the detailed configuration of substation light signal receiving unit 201 of the substation 20 of Fig. 3 is shown.

Main station optical signal radiating portion 102 comprises blender 505, local oscillator 510, band pass filter 515 and optical signal transmitter 520.Local oscillator 510 is to produce to be used for and will to be converted to the oscillation signals according (frequency: equipment fi) of IF signal as the electrical signal types WLAN signal frequency of RF signal.Blender 505 will mix with the signal that local oscillator 510 produces as the electrical signal types WLAN signal of RF signal.515 signal extractions from frequency inverted of band pass filter have the IF signal of expected frequency.Optical signal transmitter 520 will be a light signal by the IF conversion of signals of band pass filter 515 outputs.

Substation signal receive section 201 comprises light signal receiving unit 550, local oscillator 555, blender 560 and band pass filter 565.Light signal receiving unit 550 will be converted to the electrical signal types WLAN signal as the IF signal as the light signal of modulation IF signal.Local oscillator 555 is to produce to be used for and will to be the oscillation signals according (frequency: equipment fi) as the electrical signal types WLAN signal of RF signal as the electrical signal types WLAN conversion of signals of IF signal.Blender 560 will mix with the signal that local oscillator 555 produces as the electrical signal types WLAN signal of IF signal.Band pass filter 565 has the RF signal of expected frequency from the signal extraction of frequency inverted.

Hereinafter, will the operation of the wireless communication system of using above-mentioned main website signal emission part 102 and above-mentioned substation signal receive section 201 be described.This wireless communication system is similar to the wireless communication system of embodiment 1, but will be electrical signal types WLAN signal as the electrical signal types WLAN conversion of signals of radio frequency (RF) signal in main website signal emission part 102, and will be electrical signal types WLAN signal in substation signal receive section 201 as the electrical signal types WLAN conversion of signals of IF signal as the RF signal as the IF signal.Therefore,, will the operation of main website signal emission part 102 and substation signal receive section 201 only be described here.

As shown in Figure 32, the blender of main website signal emission part 102 505 receives as having frequency f 1, f2, and the electrical signal types WLAN signal of the RF signal of f3 and f4, and by the oscillation signals according of local oscillator 510 vibrations.Blender mixes input signal.As a result, the signal such as the difference frequency between f1 to f4 and the fi and frequency or the like is produced.

Band pass filter 515 from blender 515 produce such as the signal extraction of difference frequency and frequency or the like electrical signal types WLAN signal as the IF signal.Attention: when electrical signal types WLAN signal (IF signal) has frequency f 1 ', f2 ' is when f3 ' and f4 ', to f4 ', set up following relation: f1 '=f1-fi between f1 to f4 and the fi, f2 '=f2-fi at f1 ', f3 '=f3-fi, f4 '=f4-fi.

So, electrical signal types WLAN signal (RF signal) by frequency inverted for having more low-frequency electrical signal types WLAN signal (IF signal).

Next, optical signal transmitter 520 is converted to light signal with electrical signal types WLAN signal (IF signal), and it then is output to optical fiber transmission line 50.Like this, light signal arrives substation 20.

Next, substation 20 utilizes substation light signal receiving unit 201 receiving optical signals.Light signal receiving unit 550 is converted to electrical signal types WLAN signal as the IF signal with light signal.This electrical signal types WLAN signal (IF signal) has said frequencies f1 ' to f4 '.

Local oscillator 555 outputs have the oscillation signals according of frequency f i to blender 560.Blender 560 will mix with the electrical signal types WLAN signal of exporting from light signal receiving unit 550 from the oscillation signals according of local oscillator 555 outputs.As a result, produced to the signal of the difference frequency between f4 ' and the fi and frequency or the like such as f1 '.

Band pass filter 565 from blender 515 produce such as the signal extraction of difference frequency and frequency or the like electrical signal types WLAN signal as the RF signal.Attention: electrical signal types WLAN signal (RF signal) has said frequencies f1 to f4.

As mentioned above, the transmission of IF flashlight can obtain by combination main station optical signal radiating portion 102 and substation light signal receiving unit 201.As a result, the capability request that high frequency needs can be at optical device, and such as photocell, light receiving element or the like is released in Guan Lian electric equipment or the like therewith, so that can use low-cost device.Above-mentioned signal transmitting method can advantageously obtain the low cost optical transmission system.

In addition, before and after optical signal transmitter and optical signal receiver, carry out frequency inverted,, cause configuration than simpler main website 10 or substation 20 when signal stands frequency inverted respectively so that a plurality of signal can stand frequency inverted together.

Attention: here, the substation light signal receiving unit 201 of the main station optical signal radiating portion 102 of the main website 10 of Fig. 2 and the substation 20 of Fig. 3 has been described.Yet the application of the substation light signal receiving unit 201 of the main station optical signal radiating portion 102 of Figure 32 and Figure 33 is not limited thereto.More particularly, the substation light signal receiving unit 201 of the main station optical signal radiating portion 102 of Figure 32 and Figure 33 can be used to all main websites 10 and the substation 20 of use among the embodiment 1 to 3.

Attention: here, from main website 10 to the substation 20 following biography system described, yet the uploading system that is used for the transmission of IF flashlight can utilize and be similar to aforesaid configuration and obtain.

Wherein be converted into the inside that is not limited to main station optical signal radiating portion 102 as the place of the electrical signal types WLAN signal of IF signal as the electrical signal types WLAN signal of RF signal.More particularly, electrical signal types WLAN signal (RF signal) can be right after and be converted into electrical signal types WLAN signal (IF signal) before being input to the built-up section 101 that transmits of Fig. 2.In this case, the down-conversion part 600 shown in Figure 34 is set at the importation of main website 10 and is used for the transmitting between the built-up section 101 of each signal line.Hereinafter, down-conversion part 600 will be described.

Down-conversion part 600 comprises local oscillator 605, blender 610 and band pass filter 615.Local oscillator 605 is to produce to be used for and will to be converted to the oscillation signals according (frequency: equipment fi) of IF signal as the electrical signal types WLAN signal frequency of RF signal.Blender 610 will mix with the signal that local oscillator 605 produces as the electrical signal types WLAN signal of RF signal.Band pass filter 615 extracts the IF signal with expected frequency from frequency conversion signal.

Hereinafter, will the operation of down-conversion part 600 be described.The electrical signal types WLAN signal (RF signal) that is input to the main website 10 of Fig. 2 from AP91a is supposed to have the frequency of f1.When this electrical signal types WLAN signal (RF signal) when being imported into main website 10, signal is input to the blender 610 of down-conversion part 600 at first.

Blender 610 will mix with the electrical signal types WLAN signal of exporting from AP91a (RF signal) from the oscillation signals according of local oscillator 605 outputs.As a result, the signal such as the difference frequency between f1 and the fi and frequency or the like is produced.

Next, band pass filter 610 from blender 610 produce such as the signal extraction of difference frequency and frequency or the like electrical signal types WLAN signal as the IF signal.Notice that f1 ' sets up following relation: f1 '=f1-fi between f1 and the fi when electrical signal types WLAN signal (IF signal) has frequency f 1 '.

As a result, electrical signal types WLAN signal (RF signal) by frequency inverted for having more low-frequency electrical signal types WLAN signal (IF signal).Built-up section 101 class of operation subsequently that transmits is similar to those operations of embodiment 1, and will not describe.

Attention: when down-conversion part 600 was provided in main website 10, the substation light signal receiving unit 201 of Figure 33 was used as the substation light signal receiving unit of substation 20.

Attention: here, electrical signal types WLAN signal (RF signal) down-conversion operation that is used for from the AP91a input has only been described, yet, can be in a similar manner by down-conversion from the electrical signal types WLAN signal (RF signal) of AP91b to 91e input.

Attention: described the following biography system from the main website to the substation here.Transmit when uploading system is used to the IF flashlight, similarly frequency inverted is performed, so that the original output of RF signal in received signal processing section 111 is resumed.

As mentioned above, the down-conversion part 600 of Figure 34 is used to main website 10, and the substation light signal receiving unit 201 of Figure 33 is used to substation 20, makes that thus obtaining the transmission of IF flashlight becomes possibility.As a result, optical transmission system can advantageously obtain with low cost.

Because the input of RF signal in the transmit built-up section 101 or the processing section 121 that transmits from AP is converted into the IF signal, low frequency signals is processed in the transmit built-up section 101 or the processing section 121 that transmits.As a result, can in the electric equipment that uses there, be released, low-cost equipment can be used the request of the required performance of high frequency.In other words, the transmit built-up section 101 or the processing section 121 that transmits can advantageously be obtained with low cost.In addition, lower frequency advantageously causes having still less cross-talk in the main website 10 that uses down-conversion part 600.

Notice that, down-conversion part 600 is assumed to be the importation of the main website 10 that is arranged on Fig. 2 and transmits between the built-up section 101 here, but the position that down-conversion part 600 is employed is not limited thereto.For example, down-conversion part 600 can be arranged on main website 10 importations of Fig. 4 and transmit between the built-up section 101, the importation of the main website 10 of Figure 13 and transmitting between the processing section 121 or the like.

Here, usually, the electrical signal types WLAN signal among the AP can be in IF signal condition (the IF signal among the AP is called as an IF signal) inherently temporarily, and final, is converted into the RF signal, and it then is output.In this case, may expect when electrical signal types WLAN signal is an IF signal, it is got the outside, and be the 2nd IF signal by frequency inverted in the signal of the Qu Chuing down-conversion part 650 shown in Figure 35 like this, this down-conversion part 650 is arranged on the importation of main website 10 and the built-up section 101 or transmit between the processing section 121 of transmitting.Hereinafter, will the main website 10 of Figure 35 that down-conversion part 650 and down-conversion part 650 be employed be described.

Down-conversion part 650 comprises local oscillator 655, blender 660 and band pass filter 665.Local oscillator 655 is to produce to be used for and will to be converted to the oscillation signals according (frequency: equipment fil) of the 2nd IF signal as the electrical signal types WLAN signal frequency of an IF signal.Blender 660 will mix with the signal that local oscillator 655 produces as the electrical signal types WLAN signal of an IF signal.665 signal extractions from frequency inverted of band pass filter have the 2nd IF signal of expected frequency.

Hereinafter, will the operation of down-conversion part 650 be described." the electrical signal types WLAN signal of frequency is input to the down-conversion part 650 of main website 10 from AP91a to suppose the f1 that has as the IF signal.Blender 660 will mix with the electrical signal types WLAN IF signal of exporting from AP91a (IF signal) from the local oscillation IF signal of local oscillator 655 outputs.As a result, " and the signal of the difference frequency between the fi1 and frequency or the like is produced such as f1.

Next, band pass filter 665 is from the signal extraction electrical signal types WLAN signal (the 2nd IF signal) such as difference frequency and frequency or the like of blender 660 generations.Attention: the frequency f 1 of electrical signal types WLAN signal (the 2nd IF signal) " and f1 ' have following relation: f1 with fi1 "=f1 '+fi1.

Thereafter, the 2nd IF signal is handled in the mode that is similar to embodiment 1 at the built-up section 101 that transmits.Attention: the process that this process is different from embodiment 1 only is that more low-frequency the 2nd IF signal is used.The function of each assembly of main website 10 is entirely identical to the function of each assembly of the main website 10 of embodiment 1.

Attention: the light signal that arrives substation 20 is the 2nd IF signal that obtains by conversion, and therefore, it is the function of RF signal that substation 20 has the 2nd IF conversion of signals.Therefore, substation 20 has the substation light signal receiving unit 201 of Figure 33.

As mentioned above, in the wireless communication system of the main website 10 that the down-conversion part 650 of using Figure 35 is employed, electrical signal types WLAN signal is converted into to have than the more low-frequency IF signal of RF signal.Therefore, the built-up section that transmits, transmit processing section and optical transmission system can obtain with low cost.

In addition, the connection between main website and AP can utilize the IF signal with low frequency to obtain.Therefore, cable performance or realization are obtained with simple configuration.As a result, wireless communication system can obtain with low cost.

Attention:, only described signal here from AP91a.Similarly, about AP91b to 91e, corresponding to AP91b to 91e each, the down-conversion part 650 of Figure 35 is arranged in the main website 10, and an IF signal can be converted into the 2nd IF signal whereby.Note, in this case, when supposition has frequency f 1 as the electrical signal types WLAN signal from an IF signal of AP91b to 91e output "; the oscillation signals according corresponding to AP91b has frequency f i2; the oscillation signals according corresponding to AP91c has frequency f i3; the oscillation signals according corresponding to AP91d has frequency f i4; and have frequency f i5 corresponding to the oscillation signals according of AP91e; the frequency f 2 ' of the 2nd IF signal has following relation: f2 '=f1 "+fi2 to f5 ', f3 '=f1 "+fi3, andf4 '=f1 "+fi4.

Although here, all IF signals of exporting from AP91a to 91e have frequency f 1 ", can have different frequency from an IF signal of AP91a to 91e output.In this case, the oscillation signals according that has with the common frequency of AP91a to 91e can be used.As a result, can be used with the general oscillator of local oscillator 655.

Attention: in main website 10 and substation 20 that reference Figure 32 to 35 describes, IF signal and communicating by letter of RF signal coexistence can be performed.Here, in IF signal emission, the IF signal frequency can at random be selected basically, and because this advantage is arranged, and by collect signal in a plurality of frequency bands that are divided into relative narrow-band zone, optical transmission can be performed.

For example, in the wireless communication system of carrying out IEEE802.11a and IEEE802.11b coexistence service, the 2.4GHz frequency band is used to IEEE802.11b, and the 5.2GHz frequency band is used to IEEE802.11a.Therefore, be IF signal at the 2.6GHz frequency band by frequency inverted if be used for the signal of IEEE802.11a, to carrying out the light emission at the RF signal of the 2.4GHz frequency band that is used for IEEE802.11b with at the IF of the 2.6GHz that is used for 802.11a signal.As a result, narrower frequency band and lower frequency are used.Therefore, can comprise amplifier, be released in the optical transmission system of match circuit or the like, wireless communication system can be constructed with low cost the request of the required performance of high frequency.

(in

embodiment

1 and 2, being used to be connected the exemplary method of AP and main website)

Hereinafter, use description to connect the AP91 of

embodiment

1 and 2 and the method for main website 10.

In

embodiment

1 and 2, each AP91a to 91e and main website 10 are connected via two signal lines, and these two signal lines are to be used to transmit signals to a signal line of main website 10 and be used for from another signal line of main website 10 received signals.More particularly, this means that the signal line that is used for transmitting signals to main website 10 is connected to the signal line that passes through its emission WLAN signal of AP91a to 91e, and be used for being connected to the signal line that pass through its reception WLAN signal of AP91a to 91e from the signal line of main website 10 received signals.

Yet, be used at commercially availabie AP under the situation of Wireless LAN system, by utilizing the RF switch, the I/O of commercially availabie wireless portion is used as the individual signals circuit and provides, and therefore can not be directly connected to two signal lines.Therefore, in order to obtain input and output, must revise the special WLAN AP that WLAN AP or generation have the input and output of separation via the signal line that separates.

In order to address the above problem, the main website 10 with circulator as shown in Figure 36 is conceived to.Here, Figure 36 illustrates the main website 10 that uses circulator.

The main website 10 of Figure 36 is provided with circulator 700a to 700e by transmitting in the main website 10 of Fig. 2 between built-up section 101 and received signal processing section 111 and the AP91a to 91e to obtain.By circulator being set in this part, can be obtained to the connection of general WLAN AP.Hereinafter, detailed description will be provided.

The main website 10 of Figure 36 comprises the built-up section 101 that transmits, main station optical signal radiating portion 102, beam split part 103, received signal processing section 111, main station optical signal receiving unit 112 and light built-up section 113 and circulator 700a to 700e.Circulator 700a to 700e will output to the built-up section 101 that transmits from the signal of AP91a to 91e, and output from the signal of received signal processing section 111 to AP91a to 91e.Attention: the built-up section 101 that transmits, main station optical signal radiating portion 102, beam split part 103, received signal processing section 111, main station optical signal receiving unit 112, and light built-up section 113 is similar to the corresponding assembly of Fig. 2 and will describe.

Hereinafter, will the operation of main website 10 be described.Signal from AP91a to 91e is sent to the built-up section 101 that transmits via circulator 700a-700e.The built-up section 101 that transmits, therefore main station optical signal radiating portion 102, and the similar process of the process subsequently of beam split part 103 and embodiment 1 will not describe.

Light built-up section 113, the process that is similar to embodiment 1 is carried out in main station optical signal receiving unit 112 and received signal processing section 111.Thereafter, received signal processing section 111 output electrical signal types WLAN signals.In response to this, circulator 700a-700e output electrical signal types WLAN signal is to the AP91a to 91e that is connected to the there.The process subsequently of AP91a to 91e is similar to those processes of embodiment 1, and will not describe.

As mentioned above, circulator is introduced into to connect AP91a to 91e and main website 10, make that thus need not to revise commercially availabie, its wireless portion has the WLAN AP as the I/O of individual signals circuit, perhaps produce special WLAN AP and acquire the possibility that is connected to become of main website.

Attention: above-mentioned circulator can be applied to the main website 10 of Fig. 2 and all main websites 10 of embodiment 1 to 3.

(another exemplary network configuration of embodiment 1 to 3)

In the wireless communication system of embodiment 1 to 3, main website 10 and substation 20 are connected with star structure.The network configuration of wireless communication system is not limited thereto.For example, main website 10 can be connected with cascade structure or loop configuration with substation 20.

At first, wireless communication system will be described with reference to the drawings, wherein main website 10 is connected with cascade structure with the substation.Figure 37 is a block diagram, and the configuration of wireless communication system is shown, and wherein main website 10 and this substation 20 are connected with cascade structure.

The wireless communication system of Figure 37 comprises main website 10,

substation

20a and 20b, SW70, AP91a to 91e, WDM coupler 707, WDM coupler 710a and 710b, and terminal A and B.In this wireless communication system, different wavelength is assigned to each substation 20, and main website 10 is connected with Wave division multiplexing (WDM) scheme in logic with substation 20.

Substation

20a and 20b, SW70, and AP91a to 91e is similar to those parts of embodiment 1 to 3, and will not describe.Here, for example, the main website 10 of the embodiment 2 of Figure 13 is conceived to.The operation of each part of the main website 10 of attention: Figure 13 is substantially similar to those operations of embodiment 2, and therefore, only different with embodiment 2 operations are described.

As mentioned above, in this wireless communication system, different wavelength is assigned to each substation 20, and substation 20 connects with Wave division multiplexing (WDM) scheme in logic.More particularly, each main station optical signal radiating portion 102a of the main website 10 of Figure 13 is the light signal with wavelength X a with input electrical signal type WLAN conversion of signals, and it then is output.Each main station optical signal radiating portion 102b of the main website 10 of Figure 13 is the light signal with wavelength X b with input electrical signal type WLAN conversion of signals, and it then is output.WDM coupler 707 will have λ a wavelength by wavelength multiplexing light signal makes up with the light signal with λ b wavelength, they all are to be output from main website, and will be the light signal that has the light signal of λ a wavelength and have λ b wavelength from the separate optical signals of WDM coupler 710a output.The signal that the light signal that WDM coupler 710a will have a λ a wavelength separates from the separate optical signals and the output of main website 10 inputs is to substation 20a, and will make up from the light signal of WDM coupler 710b output and the light signal with wavelength X a from substation 20a output by wavelength multiplexing.WDM coupler 710b has the light signal of wavelength X b from the separate optical signals of WDM coupler 710a input, and exports the signal that separates and arrive substation 20a, and will output to WDM coupler 710a from the light signal of substation 20b output.

Hereinafter, will the operation of wireless communication system of the structure like this of Figure 37 be described.To the operation of the wireless communication system of carrying out when signal incoming terminal A that exports from SW70 and the B be described here.Attention: SW70, the class of operation of the AP91a to 91e and the processing section 121 that transmits is similar to those operations of embodiment 2, and will not describe.

Main station optical signal radiating portion 102a will be the light signal with wavelength X a from the electrical signal types WLAN conversion of signals of processing section 121 outputs that transmit.Main station optical signal radiating portion 102b will be the light signal with wavelength X b from the electrical signal types WLAN conversion of signals of processing section 121 outputs that transmit.

Next, 707 pairs of light signals with wavelength X a and λ b from main station optical

signal radiating portion

102a and 102b output of WDM coupler carry out wavelength multiplexing, and the signal that output is produced is to WDM coupler 710a.

WDM coupler 710a only exports the light signal with λ a wavelength of light signal of reception to substation 20a, and output has the light signal of wavelength X b to WDM coupler 710b.Thereafter, the light signal that substation 20a will have λ a wavelength is converted to electrical signal types WLAN signal, and it then is used as radio wave and outputs to terminal A.Attention: the class of operation of substation 20a is similar to those operations of embodiment 2, and will not describe.

WDM coupler 710b extracts from the light signal with λ b wavelength of WDM coupler 710a output, and exports this light signal to substation 20b.Thereafter, substation 20b carries out the operation that is similar to substation 20a, to transmit signals to terminal B.As a result, signal incoming terminal A and B.

As mentioned above, when substation 20 was connected to main website 10 with cascade structure, the total length of optical fiber transmission path advantageously was shorter than the total length of star structure.

Note the signal flow of uploading of self terminal A and B to be squeezed and to be above-mentioned signal flow, and will not describe.

Next, main website 10 and substation 20 will be described with reference to the drawings wherein with the connected wireless communication system of loop configuration.Figure 38 is a block diagram, and the configuration of wireless communication system is shown, and wherein main website 10 and all substations 20 are connected with loop configuration.

The wireless communication system of Figure 38 comprises main website 10,

substation

20a and 20b, SW70, AP91a to 91e, WDM coupler 715,

WDM coupler

720a and 720b, terminal A and B and WDM coupler 725.In this wireless communication system, different wavelength is assigned to each substation 20, and main website 10 is connected with Wave division multiplexing (WDM) scheme in logic with substation 20.

SW70,

substation

20a and 20b, and AP91a to 91e is similar to those parts of embodiment 1, and will not describe.Here, for example, the main website 10 of Figure 13 is conceived to.The operation of each part of the main website 10 of attention: Figure 13 is substantially similar to those operations of embodiment 2, and therefore, only different with embodiment 2 operations are described.

As mentioned above, in this wireless communication system, different wavelength is assigned to each substation 20, and substation 20 connects with the Wave division multiplexing scheme in logic.More particularly, each main station optical signal radiating portion 102a of the main website 10 of Figure 13 is the light signal with wavelength X a with input electrical signal type WLAN conversion of signals, and it then is output.Each main station optical signal radiating portion 102b of the main website 10 of Figure 13 is with the light signal with λ b wavelength of electrical signal types WLAN conversion of signals for then being exported of input.WDM coupler 715 will make up with the light signal with λ b wavelength from the light signal with λ a wavelength of main website 10 outputs by wavelength multiplexing.WDM coupler 720a has the light signal of λ a wavelength from the separate optical signals of WDM coupler 715 inputs, and the signal that output separates is to substation 20a, and will make up from the light signal of WDM coupler 715 outputs and the light signal that has λ a wavelength from substation 20a output by wavelength multiplexing, at WDM coupler 715, the light signal with wavelength X a is removed.WDM coupler 720b will have the light signal of λ b wavelength from the separate optical signals of WDM coupler 720a input, and will remove light signal light signal that obtains and the light signal of exporting from substation 20a by light signal by wavelength multiplexing and make up, and the signal that output is produced is to WDM coupler 720b from 715 outputs of WDM coupler with λ a frequency with λ a frequency.Equally, WDM coupler 720b has the light signal of wavelength X b from the separate optical signals of WDM coupler 720a input, and the signal that output is produced is to substation 20a, and will make up from the light signal with wavelength X b of substation 20b output and the light signal that the light signal that has wavelength X b by the light signal removal from WDM coupler 720a output obtains, and the signal that output is produced is to WDM coupler 725.WDM coupler 725 will be the light signal that has the light signal of wavelength X a and have wavelength X b from the separate optical signals of WDM coupler 720b output.

To the operation of wireless communication system of the structure like this of Figure 38 be described.To the signal flow of wireless communication system loop part be described here.Attention: terminal A and B,

substation

20a and 20b, SW70, AP91a to 91e, and the class of operation of the processing section 121 that transmits is similar to the operation of embodiment 2, and will not describe.

Main station optical signal radiating portion 102a will become to have the light signal of wavelength X a from the electrical signal types WLAN conversion of signals of processing section 121 outputs that transmit.Main station optical signal radiating portion 102b will be the light signal with wavelength X b from the electrical signal types WLAN conversion of signals of processing section 121 outputs that transmit.

Next, 715 pairs of light signals with wavelength X a and λ b from main station optical

signal radiating portion

WDM coupler 720a only exports the light signal with λ a wavelength of receiving optical signals to substation 20a, and will remove the light signal that light signal with wavelength X a obtains by light signal from WDM coupler 715 output, carry out wavelength multiplexing with light signal, and the signal that output is produced is to WDM coupler 720b with wavelength X a from substation 20a output.

WDM coupler 720b only exports the light signal with λ b wavelength of receiving optical signals to substation 20b, and will remove the light signal that light signal with wavelength X b obtains by light signal from WDM coupler 715 output, carry out wavelength multiplexing with light signal, and the signal that output is produced is to WDM coupler 725 with wavelength X b from substation 20a output.

Next, WDM coupler 725 will be the light signal of wavelength X a and the light signal with wavelength X b from the separate optical signals of WDM coupler 720b output, and the signal that produced of output is to main station optical signal receiving unit 112a and 112b.The class of operation subsequently of main website 10 is similar to those operations of embodiment 2, and will not describe.

As mentioned above, when main website 10 was connected with loop configuration as shown in Figure 38 with substation 20, the total length of optical fiber transmission path advantageously was shorter than the total length of star structure.In addition, by in the opposite direction increasing loopback or trigger mechanism, advantageously improved with respect to the reliability of the transmission fault of optical fiber.

In Figure 37 and 38, the quantity of substation 20 is two, but is not limited thereto.Similarly, the quantity of AP91 is not limited thereto.

Industrial applicibility

Wireless communication system of the present invention has following effect.When a plurality of communication zones were presented, the carrying capacity of AP can be effectively utilized in each communication zone.For example, as the system that the network of a wireless communication terminal that allows to be present in the local zone and outside, local zone communicates, this wireless communication system is useful.

Claims

1. the system that communicates of the network of wireless communication terminal that allows to be present in the local zone and outside, local zone, this system comprises:

A plurality of substations are used for forming respectively in the local zone wireless-communication-capable area separately, and carry out radio communication with wireless communication terminal in corresponding wireless-communication-capable area separately;

One or more access trunkings, be used for to be input to from the outside, local zone the signal form of conversion of signals for using of inside, local zone, and will output to the signal form of conversion of signals for using of outside, local zone from inside, local zone for the outside, local zone for the local zone; And

A main website that is arranged between substation and the access trunking,

This main website comprises therein:

Management devices is used to manage under a state and inserts the communication route of trunking to each substation from each, so that the communication route can be set; And

Choice device is used for the communication route that basis is managed by management devices, selects and export the signal that is input to corresponding substation from the outside, local zone, and the form of this signal inserts in trunking at each and is converted, and is imported into the local zone.

2. wireless communication system according to claim 1, choice device further comprises therein:

One or more separators corresponding to each access trunking; And

A plurality of transfer switch units corresponding to each substation;

Each separator separates and is input to the signal local zone, that its form has been converted to all transfer switch units in inserting trunking, and

Each transfer switch unit is converted to determine being output to corresponding substation from the communication route which signal of separator output is managed based on management devices.

3. wireless communication system according to claim 2, wherein each conversion of signals that inserts that trunking utilizes different frequency will be input to the local zone is the signal form for the local zone use,

Described choice device further comprises a plurality of multiplex machines corresponding to each transfer switch unit, and

Each multiplex machine carries out frequency division multiplex to the signal from corresponding transfer switch unit output, and the multiplex signal and the output multiplex signal that are input to the local zone with generation arrive corresponding substation.

4. wireless communication system according to claim 3, wherein separator comprises the coupler that is used for individual signals is separated into a plurality of signals, and

Described multiplex machine comprises the coupler that is used for a plurality of signal multichannels are combined as individual signals.

5. wireless communication system according to claim 1 further comprises a network switch that is arranged between the network that inserts trunking and outside, local zone, wherein

The network switch is managed each and is inserted trunking and be present in connection status between the wireless communication terminal of local zone, with reference to being input to the signal of the network switch and based on this connection status, appointment is present in the wireless communication terminal of local zone, and the signal that will be input to the network switch outputs to the access trunking that is connected with the specific radio communication terminal.

6. the signal that wireless communication system according to claim 5, the wireless communication terminal that wherein is present in the local zone will be transmitted into another wireless communication terminal that is present in the local zone is transmitted into the substation of the communication zone under the wireless communication terminal,

The signal that is transmitted into another wireless communication terminal is imported into the access trunking via substation and main website, and in inserting trunking, be converted into for the outside signal that uses in local zone, and be output to the network switch, and

The signal that the network switch has been converted in inserting trunking with reference to its form and based on this connection status, appointment is present in another wireless communication terminal of local zone, and the signal that will be input to the network switch outputs to the access trunking that is connected with the specific radio communication terminal.

7. wireless communication system according to claim 1, wherein each substation receives the signal that outputs to the outside, local zone from inside, local zone, and by the signal of wireless communication terminal emission, and output signal is to main website,

Main website output will output to the signal of outside, local zone from inside, local zone, and this signal outputs to the access trunking from the substation,

Insert trunking and will output to the signal of outside, local zone from inside, local zone, this signal is exported from main website, be converted to for the outside signal form that uses in local zone, and the signal of output conversion is to the outside, local zone.

8. wireless communication system according to claim 7, wherein main website further comprises:

A plurality of main website signal receiving devices corresponding to each substation are used to receive the signal that outputs to the outside, local zone from inside, local zone, and signal is from each substation output; And

The main website composite set is used to make up the signal that outputs to the outside, local zone from inside, local zone, and signal is received by a plurality of main websites signal receiving device, and the output composite signal is to inserting trunking.

9. wireless communication system according to claim 7, wherein insert trunking and further comprise:

Intensity detecting device is used to detect the intensity from the signal of main website emission; And

Request unit is used for the intensity when the signal of launching from main website, and by the intensity that intensity detecting device detects, when being lower than predetermined value, the request main website will be transmitted into the conversion of signals of access trunking to another signal,

When receive from the request existence of request unit and main website be transmitted into from two or more substations insert trunking have the signal of identical content the time, replace and output to the signal that inserts trunking, main website output is from the signal of one of them output of two or more substations, and this substation is different from positive output signal to the substation of inserting trunking.

10. wireless communication system according to claim 7, wherein each substation further comprises the cross-talk cancellation element, be used for based on the signal that is input to the local zone, generation have with since be input to the local zone effect of signals and at the signal that outputs to the cross-talk same intensity that occurs the signal of outside, local zone from inside, local zone, and inversion has the signal of this intensity, and adds this inverted signal to cross-talk.

11. wireless communication system according to claim 10, wherein the cross-talk cancellation element further comprises:

First coupler section, a part that is used to separate the signal that is input to the local zone; And

Second coupler section, the part that is used for the signal that will be input to the local zone that will have been separated by first coupler section makes up with the signal that outputs to the outside, local zone from inside, local zone,

When separation is input to the signal of local zone, first coupler section will output to 90 ° of the phase changes of the signal of second coupler section, and

When combination during these two signals, second coupler section will be from 90 ° of the phase changes of the signal that will be input to the local zone of first coupler section output.

12. wireless communication system according to claim 7, wherein, in each substation, be used to export the signal that outputs to the outside, local zone from inside, local zone, signal from wireless communication terminal output, to the signal transmitting/receiving system of main website be used to launch the signal that is input to the local zone,, be accommodated in the shell of each separation to the signal transmitting/receiving system of wireless communication terminal from the signal of main website output.

13. wireless communication system according to claim 1, wherein main website and each substation are connected via optical transmission line,

Main website comprises that further being used for to be the optical signal conversion apparatus of light signal by the selected conversion of signals of choice device,

Each substation will be converted to the signal of telecommunication of the form of using for the local zone from the light signal of main website output, and launch this with the signal of telecommunication of the radio wave form wireless communication terminal in the corresponding wireless-communication-capable area.

14. wireless communication system according to claim 13, wherein main website comprises that further the frequency inverted that is used for the signal that will be selected by choice device is the main website frequency conversion apparatus of intermediate frequency, and

The conversion of signals that to carry out frequency inverted by the main website frequency conversion apparatus is the optical signal conversion apparatus of light signal.

15. wireless communication system according to claim 14, wherein the substation further comprises the substation frequency conversion apparatus, the frequency that is used for the electrical signal converted of the form that will use for the local zone is converted to frequency when inserting trunking and having exported the signal of telecommunication from intermediate frequency, and

The signal that is carried out frequency inverted by the substation frequency conversion apparatus is launched into wireless communication terminal in the corresponding wireless-communication-capable area with the form of radio wave.

16. wireless communication system according to claim 13, wherein main website further comprises the main website frequency conversion apparatus, is used for being input to the signal of local zone, and a kind of has been intermediate frequency by each frequency inverted that inserts the signal form of trunking conversion,

Choice device selects to be imported into the signal of local zone, and its form inserts trunking by each and carried out conversion and carried out frequency inverted by the main website frequency conversion apparatus.

17. wireless communication system according to claim 13, wherein each inserts the switching signal that trunking will be imported into the local zone and outputs to main website as the signal with first intermediate frequency,

Main website further comprises the main website frequency conversion apparatus, is used for being input to the signal of local zone, and the frequency inverted that inserts the signal of trunking output from each is second intermediate frequency, and

18. wireless communication system according to claim 13, the optical transmission line that wherein connects each substation and main website has the length that is equal to each other basically.

19. wireless communication system according to claim 1, wherein main website and each substation are connected via optical transmission line,

Main website further comprises optical signal conversion apparatus, is used for being input to the signal of local zone, and a kind of signal form of having been changed by each access trunking is converted to light signal, and

Choice device select and output by the light signal of optical signal conversion apparatus conversion to the substation.

20. wireless communication system according to claim 1, wherein main website further comprises a plurality of signal receiving devices that are equivalent to each substation, is used to receive all signals from each access trunking output,

Choice device comprises:

A plurality of separators corresponding to each substation; And

A plurality of selection/output devices that are arranged between each substation and each separator,

Separator will be inserts all Signal Separation that are input to local zone trunking output and that received by each signal receiving device from each and becomes to be input to be used for the signal that each inserts the local zone of trunking, and

Each selection/output device is based on the communication route of being managed by management devices, will will be input in the middle of the signal that has been separated by corresponding separator of local zone, and the signal that be output to corresponding substation outputs to corresponding substation.

21. wireless communication system according to claim 1, wherein choice device further comprises:

A plurality of signal receiving devices corresponding to each substation; And

A plurality of selection/output devices that are arranged between each substation and each signal receiving device,

Each signal receiving device is based on the communication route of being managed by management devices, only be received in the middle of the signal that will be input to the local zone of each access trunking output, to be sent to the signal that is input to the local zone of corresponding substation, and

The signal that is input to the local zone that selection/output device will have been received by each signal receiving device is transmitted into each corresponding substation.

22. wireless communication system according to claim 1, the wireless communication terminal that wherein is present in the local zone comprises communication beginning request unit, be used for asking to begin to communicate via the access trunking of expectation and the substation of the communication zone under the wireless communication terminal

Communication begins request and arrives main website via the substation,

Main website comprises:

The communication request signal receiving system, the communication that is used to receive from the emission of communication beginning request unit begins request; And

The communication starting apparatus is used for beginning request based on the communication that is received by the communication request signal receiving system, begins communication via the access trunking by the substation expectation.

23. wireless communication system according to claim 1, wherein when predetermined a period of time or more time, the substation does not transmit signals to when inserting trunking, and choice device is not selected to output to the substation by the signal that inserts trunking output or with it.

24. the system that the network of wireless communication terminal that allows to be present in the local zone and outside, local zone communicates, this system comprises:

A plurality of access trunkings, be used for to be input to from the outside, local zone the signal form of conversion of signals for using of inside, local zone, and will output to the signal form of conversion of signals for using of outside, local zone from inside, local zone for the outside, local zone for the local zone; And

A main website that is arranged between substation and the access trunking,

Wherein main website comprises:

Multiplex machine is used for from inserting the signal of trunking output, carrying out frequency division multiplex to being input to the signal of local zone, and

Choice device is used to select and exports and carry out the multiplexed signal that will be input to the local zone to all substations by multiplex machine.

25. wireless communication system according to claim 24, wherein a plurality of access trunkings are connected to main website,

Main website further comprises multiplex machine, is used for from each signal that inserts trunking output, carrying out frequency division multiplex to being input to the signal of local zone, and

It is selected and output to all substations to carry out the multiplexed signal that is imported into the local zone by multiplex machine.

26. wireless communication system according to claim 24 further comprises a network switch that is arranged between the network that inserts trunking and outside, local zone, wherein

27. wireless communication system according to claim 26, the wireless communication terminal that wherein is present in the local zone will be launched into the substation that the signal of another wireless communication terminal that is present in the local zone is transmitted into the communication zone under the wireless communication terminal,

The signal that is launched into another wireless communication terminal is imported into the access trunking via substation and main website, and in inserting trunking, be converted into for the outside signal that uses in local zone, and be output to the network switch, and

28. wireless communication system according to claim 24, wherein each substation receives the signal that outputs to the outside, local zone from inside, local zone, by the signal of wireless communication terminal emission, and exports this signal to main website,

Main website output outputs to the signal of outside, local zone from inside, local zone, from the signal of substation output, and to the access trunking,

Insert trunking and will output to the signal of outside, local zone,, be converted to for the outside signal form that uses in local zone, and the signal of output conversion is to the outside, local zone from the signal of main website output from inside, local zone.

29. wireless communication system according to claim 28, wherein main website further comprises:

A plurality of main website signal receiving devices corresponding to each substation are used to receive the signal that outputs to the outside, local zone from inside, local zone, from the signal of each substation output; And

And the main website composite set, be used to make up the signal that outputs to the outside, local zone from inside, local zone, by the signal of a plurality of main websites signal receiving device reception, and the output composite signal is to inserting trunking.

30. wireless communication system according to claim 28 wherein inserts trunking and further comprises:

Request unit is used for the intensity when the signal of launching from main website, and by the intensity that intensity detecting device detects, when being lower than predetermined value, the request main website will be launched into the conversion of signals of access trunking to another signal, and

When receive from the request existence of request unit and main website be transmitted into from two or more substations insert trunking have the signal of identical content the time, replace positive output to the signal that inserts trunking, main website output is from the signal of one of them output of two or more substations, and this substation is different from positive output signal to the substation of inserting trunking.

31. wireless communication system according to claim 28, wherein each substation further comprises the cross-talk cancellation element, be used for based on the signal that is input to the local zone, generation have with since be input to the local zone effect of signals and at the signal that outputs to the cross-talk same intensity that occurs the signal of outside, local zone from inside, local zone, and inversion has the signal of this intensity, and adds this inverted signal to cross-talk.

32. wireless communication system according to claim 31, wherein the cross-talk cancellation element further comprises:

Second coupler section, the part that is used for the signal that is input to the local zone that will have been separated by first coupler section makes up with the signal that outputs to the outside, local zone from inside, local zone,

When combination during these two signals, second coupler section will be from 90 ° of the phase changes of the signal that is input to the local zone of first coupler section output.

33. wireless communication system according to claim 28, wherein, in each substation, be used to export the signal that outputs to the outside, local zone from inside, local zone, signal from wireless communication terminal output, to the signal transmitting/receiving system of main website be used to launch the signal that is input to the local zone,, be accommodated in the shell of each separation to the signal transmitting/receiving system of wireless communication terminal from the signal of main website output.

34. wireless communication system according to claim 24, wherein main website and each substation are connected via optical transmission line,

Each substation will be converted to the signal of telecommunication that has for the form of local zone use from the light signal of main website output, and launch this with the signal of telecommunication of the radio wave form wireless communication terminal in the corresponding wireless-communication-capable area.

35. wireless communication system according to claim 34, wherein main website further comprises the main website frequency conversion apparatus, and the frequency inverted that is used to change the signal that will be selected by choice device is an intermediate frequency, and

The conversion of signals that optical signal conversion apparatus will carry out frequency inverted by the main website frequency conversion apparatus is a light signal.

36. wireless communication system according to claim 35, wherein the substation further comprises the substation frequency conversion apparatus, the frequency that is used for the electrical signal converted of the form that will use for the local zone is converted to frequency when inserting trunking and having exported the signal of telecommunication from intermediate frequency, and

37. wireless communication system according to claim 34, wherein main website further comprises the main website frequency conversion apparatus, is used for being input to the signal of local zone, a kind of signal that inserts trunking conversion by each, frequency inverted be intermediate frequency, and

38. wireless communication system according to claim 34, wherein each inserts the switching signal that trunking will be imported into the local zone and outputs to main website as the signal with first intermediate frequency,

Main website further comprises the main website frequency conversion apparatus, is used for being input to the signal of local zone, inserts the signal of trunking output from each, frequency inverted be second intermediate frequency, and

39. wireless communication system according to claim 34, the optical transmission line that wherein connects each substation and main website has the length that is equal to each other basically.

40. wireless communication system according to claim 24, wherein main website and each substation are connected via optical transmission line,

Main website further comprises optical signal conversion apparatus, is used for being input to the signal of local zone, and a kind of signal of having been changed by each access trunking is converted to light signal, and

Choice device, select and output by the light signal of optical signal conversion apparatus conversion to the substation.

41. wireless communication system according to claim 24, wherein main website further comprises:

A plurality of signal receiving devices corresponding to each substation, all that are used to receive from each access trunking output are input to the signal of local zone; And

The sender unit that between each substation and each signal receiving device, is provided with, be used to launch insert trunking output from each and be imported into the signal of local zone to corresponding substation by each suitable all that signal receiving device received.

42. main website that is arranged between a plurality of substations and the one or more access trunking, a plurality of substations be used to form each wireless-communication-capable area in the local zone and carry out and each wireless-communication-capable area in the radio communication of wireless communication terminal, and one or more access trunkings be used for will outside input from the local zone signal output to inside, local zone, main website comprises:

Choice device is used for the communication route that basis is managed by management devices, selects and export the signal that will be input to the local zone that has been received by the access trunking.

43. main website that is arranged between a plurality of substations and the one or more access trunking, a plurality of substations be used to form each wireless-communication-capable area in the local zone and carry out and each wireless-communication-capable area in the radio communication of wireless communication terminal, one or more access trunkings are used for the signal of the outside input from the local zone is outputed to inside, local zone, and main website comprises:

Signal receiving device is used to receive by inserting the signal that is imported into the local zone that trunking receives; And

Choice device is used to select and exports by inserting the signal that is imported into the local zone that trunking receives to all substations.

44. one kind for the substation of using in the wireless communication system, wherein the substation forms wireless-communication-capable area in the local zone, and communicates with the wireless communication terminal that is present in the wireless-communication-capable area that is formed by the substation,

In wireless communication system, the signal that is input to inside, local zone from the outside, local zone is converted into the signal form that uses for the local zone, and selected and output to corresponding substation,

The substation comprises:

Signal receiving device is used to be received in the central corresponding signal of the signal of selecting and exporting,

The radio wave signal emitter, the signal that is used for being received by signal receiving device with the emission of the form of radio wave is to the corresponding wireless communication terminal that is present in described wireless-communication-capable area.

45. according to the described substation of claim 44, the signal that wherein is input to inside, local zone from the outside, local zone is converted into the signal with the light signal form, and light signal is selected and output,

Signal receiving device receives the signal that is converted to the light signal form,

The substation comprises that further being used for to be the electrical switching device of electrical signal form by the conversion of signals that signal receiving device received, and

The radio wave signal emitter with the emission of the form of radio wave by the signal of electrical switching device conversion to wireless communication terminal.

46. according to the described substation of claim 44, wherein wireless communication terminal is launched the signal that outputs to the outside, local zone from inside, local zone with the form of radio wave,

The substation further comprises:

The radio wave signal receiving system is used to receive the signal by the wireless communication terminal emission; And

Sender unit is used to launch the signal that received by the radio wave signal receiving system outside to the wireless-communication-capable area that is formed by the substation.

47., comprise that further the conversion of signals that is used for being received by the radio wave signal receiving system is the light conversion device of light signal form, wherein according to the described substation of claim 46

Sender unit emission is by the light signal of the optical signal conversion apparatus conversion outside to the wireless-communication-capable area that is formed by the substation.

48. according to the described substation of claim 46, further comprise the cross-talk cancellation element, be used for based on the signal that is input to the local zone, generation have with since be input to the local zone effect of signals and at the signal that outputs to the cross-talk same intensity that occurs the signal of outside, local zone from inside, local zone, and inversion has the signal of this intensity, and adds this inverted signal to cross-talk.

49. according to the described substation of claim 48, wherein the cross-talk cancellation element comprises:

50. according to the described substation of claim 46, wherein signal receiving device and radio wave signal emitter are accommodated in first shell, and sender unit and radio wave signal receiving system are accommodated in second shell.