Summary of the invention
Reach problem in view of the foregoing; The object of the present invention is to provide a kind of private network intercommunication method and private network intercommunication transmission system based on WLAN; Can be on equipment that existing wireless lan network structure provides and outer line transmission system basis, keep the existing data of WLAN to insert and the advantage function condition transmitted under, for professional user's connection speed that realizes communicating by letter fast; Real-time and speech quality are high; Level of priority has absolute mandatory priority communication, and have generally call, the private network intercommunication transmission system of the function of group calling, announcement, and when needed; Can realize that private network intercommunication user is connected with the communication of public network communication user, to satisfy private network intercommunication transmission requirements.
For achieving the above object; The present invention introduces a kind of private network intercommunication method of basic WLAN; Include a plurality of WIFI terminal, a plurality of WIFI connect into analysis processor, outer line transmission system, integrated switch and private network User Manager; It is characterized in that when selecting to use private network intercommunication mode of operation; In the WIFI wireless access channel of physical layer, data link layer and the network layer of WIFI protocol transmission, mark off a plurality of the private network intercommunication wireless channels that are used to transmit private network intercommunication numeric data code; The WIFI terminal directly is communicated with access through this private network intercommunication wireless channel with WIFI connect into analysis processor under private network intercommunication pattern, circuit transmission and circuit switching channel transfer private network intercommunication numeric data code are set in local net network, and selects to adopt following method of work:
(1) each WIFI terminal and WIFI connect into analysis processor are provided with identical code division multiple access address code on the private network intercommunication wireless channel of correspondence; The code division multiple access address code different to different private network intercommunication radio channel setting; Be in different private network intercommunication radio channel setting different code division multiple access address codes is arranged; But to same private network intercommunication wireless channel; In all WIFI terminals and the WIFI connect into analysis processor identical code division multiple access address code is set; WIFI connect into analysis processor is the broadcast communication method of multicast on same channel to the wireless transmission of WIFI terminal on private network intercommunication wireless channel; (promptly a WIFI connect into analysis processor is to the wireless transmission of a plurality of WIFI terminal on same channel; When WIFI connect into analysis processor is in emission state; All WIFI terminals all receive this and transmit); The WIFI terminal to the wireless transmission of WIFI connect into analysis processor on private network intercommunication wireless channel for (to be a plurality of WIFI terminal adopts the wireless transmission method that the time-division transmits to a WIFI connect into analysis processor on same channel to any time-division shared channel transmission communication means at multiple spot on the same channel; When some WIFI terminal when a WIFI connect into analysis processor is carried out wireless transmit; Other WIFI terminal is in accepting state); Each WIFI terminal is provided with private network user code, priority code, group's sign indicating number, channel code; The WIFI terminal shows the operating state of private network intercommunication wireless channel and when initiating the private network intercommunication, selects idle private network intercommunication wireless channel, WIFI terminal under private network intercommunication mode of operation, to be provided with and to use private network intercommunication wireless channel, private network intercommunication numeric data code encapsulated and private network intercommunication wireless channel through setting is transferred to WIFI connect into analysis processor (promptly according to the WIFI host-host protocol; Under the WIFI host-host protocol, encapsulate and through including the private network intercommunication numeric data code of realizing other professional Internets transmission data and realizing the private network intercommunication function in the wireless channel data packets for transmission); Include speech digit sign indicating number and private network intercommunication function sign indicating number in the described private network intercommunication numeric data code, include private network intercommunication identification code, private network user code, priority code, group's sign indicating number, type of call sign indicating number, channel code, line disconnection sign indicating number in the private network intercommunication function sign indicating number, include the individual calling sign indicating number in the type of call sign indicating number, generally call sign indicating number, group calling sign indicating number, announcement sign indicating number, insert and call out sign indicating number; Contain private network user code, fixed line extension set sign indicating number, the public network communication user sign indicating number of Called Subscriber in the individual calling sign indicating number, the public network user communications codes is public network fixed telephone subscriber number and Mobile Directory Number; The WIFI terminal is differentiated the private network intercommunication numeric data code of receiving, when the related content in the private network intercommunication function sign indicating number that private network intercommunication numeric data code comprises was corresponding with this WIFI terminal, handled was just given at this WIFI terminal; As: the group calling sign indicating number at this WIFI terminal is consistent with the group calling sign indicating number in the private network intercommunication numeric data code of receiving, decoding output could be done to speech digit sign indicating number wherein in this WIFI terminal;
(2) store the address code of each integrated switch, WIFI connect into analysis processor in the private network User Manager; And it is corresponding with physical address sign indicating number (that is: MAC, hardware address sign indicating number, link address sign indicating number) separately; Be provided with user code, priority code, group's sign indicating number, the channel code at each WIFI terminal in the private network User Manager, and corresponding with the physical address sign indicating number at WIFI terminal; The private network User Manager through outer line transmission system to address code and corresponding with physical address sign indicating number separately is set in each integrated switch and the WIFI connect into analysis processor; In each integrated switch and WIFI connect into analysis processor, be provided with private network user code, priority code, group's sign indicating number, the channel code at each WIFI terminal; And corresponding with the physical address sign indicating number at WIFI terminal, can store in the private network User Manager and the accepting state priority code in each WIFI connect into analysis processor is set through integrated switch and outer line transmission system;
(3) each WIFI connect into analysis processor sends to the private network User Manager with the address code of the private network user code at the WIFI terminal of inserting and the WIFI connect into analysis processor that inserted through integrated switch and outer line transmission system; The private network User Manager sends to each integrated switch storage with the address code of the integrated switch at the address code of the private network user code at the WIFI terminal of receiving and the WIFI connect into analysis processor that inserted and this WIFI connect into analysis processor place, and the private network User Manager carries out user grouping and authority setting, storage and demonstration to the WIFI terminal that each inserts WIFI connect into analysis processor; The private network User Manager receives and writes down operating state, accepting state priority code, address code and the access user's of each WIFI connect into analysis processor private network intercommunication function sign indicating number; And in the geographical position of correspondence figure and tables of data, indicate and show; And insert the address code of the address code of the WIFI connect into analysis processor at WIFI terminal, integrated switch that WIFI connect into analysis processor is connected, the address code of each interconnective integrated switch according to each; Connection request when calling out and transmission switching path according to private network intercommunication function sign indicating number; Establishment generates private network and calls out and connect routing table, and call function that each private network intercommunication function sign indicating number that inserts the WIFI terminal of WIFI connect into analysis processor is indicated and corresponding private network are called out and connected routing table and send to each integrated switch storage; The transit route of each relevant integrated switch when private network calling connection routing table has indicated the calling of carrying out private network intercommunication function sign indicating number; According to calling out user code and the type of call that connects; Private network is called out the connection transit route that routing table indicated can exchange realization communication connection in an integrated switch, also can connect for being communicated by letter by a plurality of relevant integrated switch exchange realizations; The private network User Manager produces the private network calling connection routing table of corresponding individual calling and sends to relevant integrated switch through outer line transmission system and integrated switch when handling individual calling carries out the exchange connection;
(4) WIFI connect into analysis processor is differentiated the WIFI terminal of inserting according to the channel code of storage; Private network intercommunication numeric data code to the identical WIFI terminal of channel code inserts; And the address code of each private network user code that will insert, access channel quality indication sign indicating number, this access WIFI connect into analysis processor sends to each integrated switch and the storage of private network User Manager through outer line transmission system, and the WIFI terminal that WIFI connect into analysis processor sends to access with the operating position of private network intercommunication wireless channel through WIFI network transmission protocol transmission channel is stored and shown; Duty on the private network intercommunication wireless channel of WIFI connect into analysis processor has its idle state, receives duty and emission duty; Wherein: its idle state is: wireless channel and wire transmission channel all are in accepting state; The reception duty is: the private network intercommunication numeric data code that wireless channel receives is transmitted through private network intercommunication wireless channel and the transmission of outside line transmission system; The emission duty is: will launch through wireless channel through the private network intercommunication numeric data code that outer line transmission system receives; WIFI connect into analysis processor is selected according to relatively more definite duty to private network intercommunication wireless channel of access channel quality indication sign indicating number that each is inserted the WIFI terminal and accepting state priority code; The access channel quality indication sign indicating number at the WIFI terminal of other that receive through private network intercommunication wireless channel that the access channel quality indication sign indicating number at the WIFI terminal of access is better than receiving through outer line transmission system when this WIFI connect into analysis processor; Then this WIFI connect into analysis processor gets into this private network intercommunication wireless channel and receives duty; Otherwise get into the emission duty; If to what insert the channel quality indication sign indicating number relatively is identical; But the accepting state priority code of this WIFI connect into analysis processor is higher than other WIFI connect into analysis processor, and this WIFI connect into analysis processor gets into this private network intercommunication wireless channel and receives duty, otherwise gets into the emission duty; The Internet transmission data that are used for other application in the WIFI wireless access data that WIFI connect into analysis processor will be received through wireless channel are differentiated with private network intercommunication numeric data code and are exported along separate routes through different ports; Private network intercommunication numeric data code is provided with based on channel code and selects corresponding port output; The address code that WIFI connect into analysis processor will be used for Internet transmission data, private network intercommunication numeric data code and the corresponding access WIFI connect into analysis processor of other application adopts multichannel multiplexing method to carry out channel multiplexing and handles and obtain multiplexed signals, and through outer line transmission system multiplexed signals is transferred to integrated switch; Above-mentioned wireless channel wherein is the private network intercommunication wireless channel that in the WIFI wireless access device, is provided with; The wire transmission channel is the data transmit-receive passage of the external line transmission system of WIFI wireless access device, and access channel quality indication sign indicating number is promptly represented the comprehensive transmission quality indication sign indicating number of field intensity intensity, the bit error rate, sign indicating number shake and the time-delay index of wireless access channel;
(5) multiplexed signals that will send here through outer line transmission system of integrated switch adopts the demultiplexing method to give obtaining respectively being used for behind the demultiplexing Internet transmission data and the private network intercommunication numeric data code of other application; The Internet transmission data that are used for other application that obtain are input to Internet host-host protocol port and exchange processing (comprising packet switching, frame relay exchange and cell switching mode are arranged) according to the Internet host-host protocol; The private network intercommunication numeric data code that obtains is input to the circuit switching port; The path of the access address of each private network user code that the calling that integrated switch is set according to the private network intercommunication function sign indicating number in the private network intercommunication numeric data code requires, stores and the appointment of private network calling connection routing table is carried out circuit switching (or being called circuit switched) to private network intercommunication numeric data code and is connected, and adopts following method to implement to exchange connection:
1. set according to priority code and communicate the circuit switching connection, the force priority exchange of then giving that priority is high connects; So-called force priority exchange, promptly under the occupied situation in interchange channel, the interchange channel of other low priority users of forced interruption preferentially exchanges connection to high-priority users;
2. setting according to channel code selects corresponding telecommunication circuit passage to exchange connection;
3. select the corresponding electrical circuits interchange channel to connect according to the individual calling sign indicating number; In the private network User Manager, inquire the address code of the WIFI connect into analysis processor at called WIFI terminal, the address code of integrated switch that this WIFI connect into analysis processor is connected, in the private network User Manager, generate corresponding private network individual calling and connect routing table and send to relevant integrated switch and carry out exchange and connect; When containing public network communication user sign indicating number in the individual calling sign indicating number, then be connected with the public network telephone network and send corresponding public network fixed telephone subscriber number and the public network Mobile Directory Number is called out connection through integrated switch; Because the quantity at WIFI terminal and moving at random, the routing table quantity of individual calling is more, carries out exchange and connects by generate and send to relevant integrated switch at the private network User Manager temporarily when therefore being employed in individual calling and taking place; Public network telephone network (or being called public telephone network) is conventional public fixed-line telephone network and public mobile telephone network;
4. according to the setting of generally calling sign indicating number in the type of call sign indicating number all users and user's access address sign indicating number are communicated the circuit switching tandem;
5. according to the setting of the group calling sign indicating number in the type of call sign indicating number and under the address code of access address sign indicating number and relevant integrated switch of group user the user of affiliated group is communicated the circuit switching tandem;
6. the setting according to the announcement sign indicating number in the type of call sign indicating number communicates the circuit switching tandem to all circuit switching ports, and when the master exhales telex network, does not insert other user calling and conversation;
7. according to the setting of the calling of the insertion in the type of call sign indicating number sign indicating number circuit switching is carried out in existing communication and inserted tandem; The so-called insertion connects, and promptly works as under the occupied situation of circuit switching passage, is inserted in the existing exchange connection to communicate;
Above-mentioned user promptly has the WIFI terminal of private network intercommunication user code; User's access address sign indicating number is the address code of the WIFI connect into analysis processor that inserts the user and the address code of the integrated switch that this WIFI connect into analysis processor is connected, and each WIFI connect into analysis processor is interconnective through all relevant integrated switches, the address code of these relevant integrated switches;
(6) integrated switch at the exchange interface channel of setting up and WIFI connect into analysis processor behind the line disconnection sign indicating number that busy private network intercommunication wireless channel is received or imported through outer line transmission system; In the retention time of setting, do not receive the private network intercommunication numeric data code of importing through outer line transmission system that reaches of private network intercommunication wireless channel input; Then integrated switch is removed corresponding exchange connection, and WIFI connect into analysis processor discharges former busy private network intercommunication wireless channel gets back to its idle state;
(7) integrated switch transmits the Internet transmission data of exchanges data port output with Internet and the dateout of circuit switching port carries out obtaining multiplexed signals after channel multiplexing is handled through multichannel multiplexing method, and through outer line transmission system this multiplexed signals is transferred to WIFI connect into analysis processor and other integrated switches;
(8) WIFI connect into analysis processor will adopt the demultiplexing method to give obtaining and export Internet transmission data and the private network intercommunication numeric data code that is used for other application respectively behind the demultiplexing through the multiplexed signals that outer line transmission system is received; Internet transmission data and the private network intercommunication numeric data code that WIFI connect into analysis processor will be used for other application carries out encapsulation process according to the WIFI agreement and is wirelessly transmitted to the WIFI user terminal of access, and WIFI connect into analysis processor is launched private network intercommunication numeric data code according to the private network intercommunication wireless channel of setting.
For realizing method of work of the present invention; The present invention also introduces a kind of private network intercommunication transmission system; Include WIFI terminal, outer line transmission system, public internet and public network telephone network; It is characterized in that having a plurality of WIFI connect into analysis processors, a plurality of integrated switch, a private network User Manager; Between WIFI connect into analysis processor and the integrated switch, between the integrated switch, between integrated switch and public internet and the public network telephone network, adopt outer line transmission system to be connected between integrated switch and the private network User Manager; Described outer line transmission system; Can adopt optical fiber, cable, 5 types of lines of network, coaxial cable and corresponding relay system to constitute respectively; Have a WIFI wireless access device, a host-host protocol to analyze conversion processor, a multiplexed demodulation multiplexer, an outside line transmission converter in each WIFI connect into analysis processor, described outside line transmission converter can adopt modulator-demodulator, optical-electrical converter, power carrier module, Ethernet access device; Require to select to use according to adapting to different outer line transmission systems; Host-host protocol is analyzed conversion processor has a WIFI transmission protocol data input/output terminal, Internet protocol data input/output terminal, a plurality of private network intercommunication numeric data code input/output terminal, and the input/output terminal of WIFI wireless access device is connected with the WIFI transmission protocol data input/output terminal that host-host protocol is analyzed conversion processor, and the Internet protocol data input/output terminal and the private network intercommunication numeric data code input/output terminal of host-host protocol analysis conversion processor are connected with the shunt input/output terminal of multiplexed demodulation multiplexer respectively; The multiplexed signals input/output terminal of multiplexed demodulation multiplexer is connected with the interior line end of outside line transmission converter; The outer line end of outside line transmission converter is connected with outer line transmission system, and a plurality of comprehensive transmission transducers, SPC digital switch, a plurality of public network communication converter, a subscriber exchange are arranged in each integrated switch, and SPC digital switch has a plurality of Internet agreement switching ports, a plurality of circuit switching port; An outside line transmission converter, a multiplexed demodulation multiplexer are arranged in each comprehensive transmission transducer; The outer line end of the outside line transmission converter in the comprehensive exchange transducer is connected with outer line transmission system, and the interior line end that comprehensively exchanges the outside line transmission converter in the transducer is connected with the multiplexed signals input/output terminal of multiplexed demodulation multiplexer, and the shunt input/output terminal of multiplexed demodulation multiplexer is connected with the subnetwork host-host protocol switching port and the partial circuit switching port of SPC digital switch respectively; The subnetwork host-host protocol switching port of SPC digital switch is connected with other LAN switches and public internet respectively; A communication protocols converter, a digital-to-analogue bidirectional transducer are arranged in each public network communication adapter, and communication protocols converter and digital-to-analogue bidirectional transducer be for being connected in series, and the public network communication adapter realizes that communicate by letter connection protocol and the transmission of signal-type between SPC digital switch and the subscriber exchange port change; As: with the private network intercommunication numeric data code of the circuit switching port of SPC digital switch output; Simulated audio signal and the dual-tone multifrequency signaling signal that converts subscriber exchange transmission into through the public network communication adapter exchanges and transmits, and the partial circuit switching port of SPC digital switch is connected with the user port of subscriber exchange through the public network communication adapter, and the outer line end of subscriber exchange is connected with the public network telephone network;
Described Internet host-host protocol can be thought local area network (LAN) host-host protocol, metropolitan area network host-host protocol, Ethernet host-host protocol (promptly meet DIX Ethernet V2 standard or meet the local area network (LAN) of 802.3 agreements), and described Internet transmission data are the transmission data that meet the Internet host-host protocol.
Operation principle of the present invention is: on existing wireless lan network architecture basics; The Internet transmission data and the private network intercommunication numeric data code that are provided with being used for other application carry out function element and the equipment that private radio inserts, transmits and exchange along separate routes in data link layer and network layer; The wireless local network user terminal; Be that the WIFI terminal has a plurality of channels in wireless access; In routine was used, WIFI intercommunication and transfer of data user adopted competition mechanism to use each channel, for ensureing the wireless access of private network intercommunication numeric data code; In wireless channel, divide a plurality of private radio transmission channels are set; Under private network intercommunication pattern, the WIFI terminal takies the private radio transmission channel transmitting-receiving private network intercommunication numeric data code of division setting in advance and is is also received and dispatched on the private radio transmission channel what be provided with by WIFI connect into analysis processor, and the private network intercommunication numeric data code that WIFI is sent at the terminal includes private network radio voice coding and private network intercommunication function sign indicating number; Pass through judgement and identification through WIFI connect into analysis processor to private network intercommunication function sign indicating number; The Internet transmission data that will be used for other application are distinguished with private network intercommunication numeric data code, and adopt multiplexing technique to transmit respectively, the Internet that is used for other application is transmitted the The data original internet network transmission protocol transmit and exchange; Its exchange includes packet switching, frame relay exchange and cell switching mode; Adopt circuit switching (or being called circuit switched) mode to exchange connection to private network intercommunication numeric data code, in access, transmission and exchange process, adopted the mode that inserts, judges shunt, multiplexed transmission, exchange respectively along separate routes to be achieved respectively private network intercommunication numeric data code and Internet transmission data; So just can be on same wireless lan network architecture basics; Maintenance is to the transmission of the Internet data that are used for other application, and makes that private network intercommunication numeric data code has the independent transmission passage in wireless access, transmission and exchange and exchange connects, and can ensure private network intercommunication real time of data transmission and reliability; And when exchanging; Private network intercommunication function sign indicating number in the inquiry private network intercommunication numeric data code is carried out function of exchange according to wherein priority, group's sign indicating number, type of call sign indicating number, realizes that its exchange ensures, priority feature realizes and the type of call demand; Like this, it is fast just to have realized having the communication connection speed, and real-time and speech quality are high, and level of priority has absolute mandatory priority communication guarantee, and have generally call, the private network intercommunication transmission system function of the functional requirement of group calling and announcement; In addition; Because the public network communication user sign indicating number of Called Subscriber is set and can sends at the WIFI terminal; In integrated switch, public network communication user sign indicating number identification and conversion back be connected with public network telephone network (i.e. the public fixed-line telephone network and the public mobile telephone network of routine) through subscriber exchange and transmit corresponding public network fixed telephone subscriber number and the public network Mobile Directory Number carries out the customer call connection, realization private network user is connected with the communication of public network telephone network.
Embodiment
Be example explanation embodiments of the invention below with the accompanying drawing:
Fig. 1 is the wireless private network intercommunication transmission system pie graph of one embodiment of the invention, wherein:
A-1 ~ A-n is the identical WIFI user terminals of a plurality of structures; B-1 ~ B-n ~ B-m is the identical WIFI connect into analysis processors of a plurality of structures, includes WIFI AM access module; C1 ~ Cn is the identical integrated switches of a plurality of structures; SPC digital switch and subscriber exchange that employing has Internet host-host protocol and circuit switched protocol function constitute; D is the private network User Manager, adopts computer server and Interface of Communication Conversion to constitute; E is a public Internet; F is the public network telephone network; Between WIFI connect into analysis processor and the integrated switch, between integrated switch and the private network User Manager, adopt outer line transmission system to be connected between integrated switch and public Internet and the public network telephone network;
Fig. 2 is the formation electrical schematic diagram of WIFI connect into analysis processor in the wireless private network intercommunication transmission system of one embodiment of the invention; Wherein A1 (An) is a WIFI connect into analysis processor among A1 ~ An; In A1 (An): 1 is outer line transmission system, adopts cable or fibre circuit (can adopt optical fiber, cable, 5 types of lines, coaxial cable, power line, power cable); 2 (can adopt modulator-demodulator, optical-electrical converter, power carrier module, Ethernet access device for the outside line transmission converter; Require to select according to adapting to different outer line transmission systems); Adopt the modular converter that is complementary with the transmission outside line to constitute, as: the outer line transmission system for the real loop line of the metal that adopts the cable class, then adopt modulator-demodulator; For the outer line transmission system of optical fiber, then adopt optical-electrical converter to constitute; 3 is multiplexed demodulation multiplexer, adopts the multiplexing and demultiplexing module formation of time division multiplexed; 4 are host-host protocol analysis conversion processor; The employing microprocessor constitutes; Wherein be mounted with Internet protocal analysis and canned software; Transmission data to input unpack and analyzing and processing, according to analysis result the transmission data are handled respectively and are exported, and the Internet transmission data that are used for other application are encapsulated reduction and output according to the former network transmission protocol; Adopt other output ports to export to private network intercommunication numeric data code, the Internet transmission data and the private network intercommunication numeric data code employing WIFI agreement of input are carried out wireless transmission; 5 is the WIFI wireless access device, adopts the conventional radio access module that meets the WIFI authentication protocol; The input/output terminal of WIFI wireless access device is connected with the WIFI transmission protocol data input/output terminal that host-host protocol is analyzed conversion processor; Internet protocol data input/output terminal and private network intercommunication numeric data code input/output terminal that host-host protocol is analyzed conversion processor are connected with the shunt input/output terminal of multiplexed demodulation multiplexer respectively; The multiplexed signals input/output terminal of multiplexed demodulation multiplexer is connected with the interior line end of outside line transmission converter, and the outer line end of outside line transmission converter is connected with outer line transmission system;
Fig. 3 is the formation electrical schematic diagram of integrated switch in the wireless private network intercommunication transmission system of one embodiment of the invention; Wherein: G1 ~ Gn is the comprehensive exchange transmission converter of a plurality of same structures; G1 (~ Gn) in; 1 is outer transmission wire system, adopt with accompanying drawing 2 in identical outer line transmission system, can adopt cable or fibre circuit; 2 are the outside line transmission converter, adopt the modular converter that is complementary with the transmission outside line to constitute, as: the outer line transmission system for the real loop line of the metal that adopts the cable class, then adopt modulator-demodulator, for the outer line transmission system of optical fiber, then adopt optical-electrical converter to constitute; 3 is multiplexed demodulation multiplexer, the multiplexing and demultiplexing module formation of corresponding time division multiplexed in employing and the accompanying drawing 2; 6 is SPC digital switch; Have a plurality of Internet agreement switching ports and circuit switching port; SPC digital switch adopts the Internet host-host protocol to exchange to Internet agreement switching port wherein; Can carry out the function of exchange that includes packet switching, frame relay exchange and cell switching; SPC digital switch is to wherein circuit switching port executive circuit function of exchange; And have scheduling exchange and a telecommunication circuit exchange tandem function, that is: have exchange connection and the function of telecommunication circuit tandem that the communication physical connection of actual point-to-point or multi-point can be provided each circuit switching port, can for group calling be provided between the multi-user, generally call, the communication link connection function of announcement and meeting tandem; H1 ~ Hn is the public network communication adapter of a plurality of same structures; Each public network communication adapter is made up of transport protocol conversion device 7 and digital-to-analogue bidirectional transducer 8 wherein; Transport protocol conversion device 7 is made up of microprocessor, and digital-to-analogue bidirectional transducer 8 is made up of digital to analog converter and analog to digital converter module; 9 is subscriber exchange, adopts the common user switch; 10 is public internet, is connected with the network transmission protocol switching port of SPC digital switch; 11 is the public network telephone network, is public fixed-line telephone network and public mobile telephone network; The outer line end of the outside line transmission converter in the comprehensive exchange transducer is connected with outer line transmission system; The interior line end of the outside line transmission converter in the comprehensive exchange transducer is connected with the multiplexed signals input/output terminal of multiplexed demodulation multiplexer; The shunt input/output terminal of multiplexed demodulation multiplexer is connected with the subnetwork host-host protocol switching port and the partial circuit switching port of SPC digital switch respectively; The subnetwork host-host protocol switching port of SPC digital switch is connected with other LAN switches and public internet respectively; A communication protocols converter, a digital-to-analogue bidirectional transducer are arranged in each public network communication adapter; Communication protocols converter and digital-to-analogue bidirectional transducer are for being connected in series; The partial circuit switching port of SPC digital switch is connected with the user port of subscriber exchange through the public network communication adapter, and the outer line end of subscriber exchange is connected with the public network telephone network;
According to each module, device and equipment in each accompanying drawing according to shown in the accompanying drawing and the functional requirement of above-mentioned explanation and annexation dispose and connects, work out relevant work software and running parameter be set for WIFI connect into analysis processor, integrated switch and private network User Manager and can accomplish enforcement of the present invention.
The private network intercommunication method of basic WLAN of the present invention can also be to transmit at the blended data bag that the Internet transmission data that are used for other application at WIF terminal and private network intercommunication numeric data code Unified coding are included in through WIFI host-host protocol, network layer and the encapsulation of data link layer host-host protocol;, the blended data bag of receiving carries out determination processing in the integrated switch port after being unpacked; Internet host-host protocol switching port and circuit switching port that the Internet transmission data that will be used for other application and private network intercommunication numeric data code give shunt, be input to integrated switch respectively exchange respectively; Internet transmission data of being exported for integrated switch Internet host-host protocol switching port that are used for other application and the private network intercommunication numeric data code that the circuit switching port is exported are unified the encapsulation back according to the Internet agreement and are transferred to WIFI connect into analysis processor through outer line transmission system and carry out wireless transmission according to the WIFI host-host protocol, or exchange processing through the integrated switch that outer line transmission system is transferred to other; Can simplify enforcement of the present invention like this, only need carry out the necessary function transformation and can realize the object of the invention integrated switch.
The private network intercommunication method of basic WLAN of the present invention can also be to adopt different wireless communication transmissions passages to transmit to WIFI transfer of data and private network intercommunication signal; Include voice signal and private network function signaling in the private network intercommunication signal, and adopt following method of work:
(1) WIFI connect into analysis processor carries out digitized processing with the private network intercommunication signal of receiving and corresponding received field strength signal and obtains private network radio voice sign indicating number, private network intercommunication function sign indicating number and field intensity sign indicating number, with private network radio voice sign indicating number,, field intensity sign indicating number, private network intercommunication function sign indicating number and wireless access address code organize into groups framing and obtain private network intercommunication numeric data code;
(2) WIFI connect into analysis processor will be reduced into original private network intercommunication signal through the private network intercommunication numeric data code of demultiplexing device output; And based on the comparable situation of wherein each field intensity sign indicating number; If the field intensity sign indicating number in the private network intercommunication numeric data code of other WIFI connect into analysis processor switching inputs that the field intensity sign indicating number of this WIFI connect into analysis processor is better than receiving; Then original private network intercommunication signal is carried out wireless transmission and sends to integrated switch through outer line transmission system, otherwise the private network intercommunication signal in the private network intercommunication numeric data code of demultiplexing device output carries out wireless transmission in other WIFI connect into analysis processors that will receive through this WIFI connect into analysis processor;
(3) some integrated switches provide same clock signal through outer line transmission system and other integrated switches to other all integrated switches and WIFI connect into analysis processor;
When (4) WIFI connect into analysis processor carries out wireless transmission to private network intercommunication signal, adopt the clock signal that provides and send here through outer line transmission system by integrated switch as the emission local vibration source;
Like this can be so that WIFI transfer of data and the complete independent transmission of private network intercommunication data can reduce it and influence each other, the convenient application.
Private network intercommunication transmission system of the present invention can also be in described integrated switch, to have a plurality of host-host protocols to analyze switching processor; Each host-host protocol is analyzed switching processor has two Internet protocol data input/output terminals, a private network intercommunication numeric data code input/output terminal; The interior lines input/output terminal of outside line transmission converter is connected with the Internet protocol data input/output terminal that host-host protocol is analyzed switching processor; Another Internet protocol data input/output terminal that host-host protocol is analyzed switching processor is connected with the Internet agreement switching port of integrated switch, and the private network intercommunication numeric data code input/output terminal that host-host protocol is analyzed switching processor is connected with the circuit switching port of integrated switch; Can simplify enforcement of the present invention like this, only need carry out the necessary function transformation and can realize the object of the invention integrated switch.
A packet switch, a digital dispatching switch are arranged in the SPC digital switch that private network intercommunication transmission system of the present invention can also be described integrated switch; The transmission input/output port of packet switch and digital dispatching switch is connected with the shunt input/output terminal of multiplexed demodulation multiplexer respectively, and the control port of packet switch and digital dispatching switch is connected with the private network User Manager through outer line transmission system respectively; Packet switch realizes including the working method of packet switching, frame relay exchange and cell switching to the Internet protocol port; The digital dispatching switch realize to circuit-switched side effected private network intercommunication function sign indicating number desiredly generally call, group calling, announcement and insert the exchange and the communication tandem of calling out; Can be convenient to enforcement of the present invention so that it is that available enforcement is accomplished that the SPC digital switch in the integrated switch is used existing mature technology like this.
Private network intercommunication transmission system of the present invention can also be that described private network intercommunication transmission system has a plurality of WIFI terminals that have the private network radio receiving-transmitting unit; A private network radio receiving-transmitting unit, an antenna combiner, a duplexer, a reception power splitter, a transmission selector switch, a phonetic coding device, a speech digit decoder, a private network intercommunication controller are arranged in each WIFI connect into analysis processor; Antenna and feeder system are connected with the antenna port of WIFI wireless access device and duplexer respectively through antenna combiner; The reception emission input/output terminal of duplexer is connected with the radio frequency receiving terminal and the transmitting terminal of private network transceiver respectively; The reception signal output part of private network transceiver is connected with the input that receives power splitter; Two outputs that receive power splitter are connected with the input end of analog signal of analog to digital converter and an input of transmission selector switch respectively; The switch control end of the reception CF signal intensity output of the digital signal output end of analog to digital converter, the digital signal input end of digital to analog converter, private network transceiver, transmission selector switch is connected with the part input/output terminal of private network intercommunication controller respectively; The multiple signals input/output terminal of multiplexed demodulation multiplexer is connected with the part input/output terminal of WIFI wireless access device and private network intercommunication controller respectively; The digital input end of speech digit decoder is connected with an output of private network intercommunication controller; The analog signal output of speech digit decoder is connected with another input that sends selector switch, and the output that sends selector switch is connected with the emission modulation signal input of private network transceiver; Like this can be so that WIFI transfer of data and the complete independent transmission of private network intercommunication data can reduce it and influence each other, the convenient application.
The present invention is that the basis is achieved with WIFI host-host protocol, WIFI functional module and technology, also can adopt the method that the present invention introduced to be achieved under for the condition on basis at the WLAN of other procotols; This clearly demarcated described WIFI WLAN; It can also be the WLAN under other host-host protocols; Wherein said WIFI user terminal also can be the wireless local network user terminal of other agreements; Corresponding is that WIFI wireless access device wherein also can be the wireless local area network access module of other host-host protocols.
The present invention has introduced a kind of private network intercommunication method and private network intercommunication transmission system based on WLAN; Adopt WIFI terminal, WIFI connect into analysis processor, outer line transmission system, integrated switch and private network User Manager to constitute; Can be on equipment that existing wireless lan network structure provides and outer line transmission system basis, keep the existing data of WLAN to insert and the advantage function condition transmitted under, for professional user's connection speed that realizes communicating by letter fast; Real-time and speech quality are high; Level of priority has absolute mandatory priority communication, and have generally call, the private network intercommunication transmission system of the function of group calling, announcement, and when needed; Can realize that private network intercommunication user is connected with the communication of public network communication user, to satisfy private network intercommunication transmission requirements.