CN1313678A - Communication method for unbalanced transmission network - Google Patents
Communication method for unbalanced transmission network Download PDFInfo
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- CN1313678A CN1313678A CN 00103433 CN00103433A CN1313678A CN 1313678 A CN1313678 A CN 1313678A CN 00103433 CN00103433 CN 00103433 CN 00103433 A CN00103433 A CN 00103433A CN 1313678 A CN1313678 A CN 1313678A
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Abstract
A communication method for unbalanced transmission network is disclosed. A unidirectional physical or logic channel and another physical or logic channel between master station and user terminal are respectively pointed as a virtual LAN and an external interactive network. The master station standard LAN physical frames over said virtual LAN by the physical address of user. The user terminal transmits standard LAN physical frames or broadcast packet to master station over external interactive network, or the data, physical address and IP address in IP packet mode to master station over external interactive network. With said method, existing unidirection network has bidirectional communication function.
Description
The present invention relates to a kind of communication method for unbalanced transmission network, belong to network communication field.
In traditional communication system, people's traffic model is symmetrical, and the round-trip transmission of information all is to realize on a physical medium.For example, when people made a phone call, the speech of transmission and the speech of reception were all defeated a phone line; And in the two-way satellite system, the transmission of data and reception also all are that channel is realized via satellite.In order to reduce the cost of system, a lot of new communication modes have occurred, as unidirectional satellite communication system and unidirectional cable television system.But pure one-way communication user can only receive information passively, and it can't solve the demand of interactive information between the user.For example, user A wants that the data of consulting user B library just can't realize.The communication mode of employing local area network (LAN) can satisfy the demand of exchange message between the user on the network, and local area network (LAN) is a network that adopts broadcasting and medium to share, and its substantive characteristics is that the LAN data bag that the user sends can be received by the Any user on the network.But this reception has certain condition, and the physical address of receiving equipment must consistently with the destination address of packet just can receive, and the local area network communication transmission range is shorter.For some specific systems, for example support the simplex system of broadcasting in addition, as unidirectional satellite system or one-way CATV system, the user not can send data, therefore can not constitute local area network (LAN).Have, do not support the system that broadcasts for some, for example dialing online though support two-way communication, is not supported Radio Broadcasting Agreements, can't realize local area network (LAN) yet.
For addressing the above problem, the objective of the invention is the local area network (LAN) of being unrealized or simplex system in a kind of easy two-way communication is provided, it is communication method for unbalanced transmission network, it makes between main website and the user side constructs local area network (LAN) on the medium that can't directly realize local area network (LAN), thereby the simplification network configuration is supported institute's protocols having of local area network (LAN).
For realizing the object of the invention, the present invention proposes a kind of communication method for unbalanced transmission network, propagation data between main website and user side, its method is as follows:
Uni-directional physical of setting or logical channel are a VLAN between main website and user side;
Between main website and user side, set two-way physics or logical channel in addition and be outer alternately network;
When outside mutual network when being a local area network (LAN), user side is by the local area network (LAN) physical frame and the physical address broadcast frame of outer mutual Network Transmission standard; And main website sends the local area network (LAN) physical frame of standard on the net according to the user side physical address at virtual local area;
When outside mutual network when being wide area network or internet, if user side is a unit, certain machine (being generally the machine of making a start) that the form that user side breaks into the IP bag by outer mutual network with the IP address and the physical address of our station sends appointment on the main website local area network (LAN) to forms the IP physical address table of comparisons; If user side is when being a local area network (LAN), certain machine (being generally the machine of making a start) that the form that a user side microcomputer breaks into the IP bag with the physical address and the IP address of all microcomputers in the whole local area network sends appointment on the main website local area network (LAN) to forms the IP physical address table of comparisons; When user side was a separate unit microcomputer or a local area network (LAN), the physical address of interior all microcomputers of a user side microcomputer or whole local area network and certain machine (being generally the machine of making a start) that appointment on the main website local area network (LAN) also can manually be delivered in the IP address formed the IP physical address table of comparisons.
Adopt the inventive method, the data communication step is as follows between main website and the user side:
Main website sends the local area network (LAN) physical frame according to user side physical address (as: MAC Address, ID number etc. the peculiar address of receiving equipment) to user side on the net at virtual local area; User side receives the local area network (LAN) physical frame;
When the outer mutual network of setting between main website and the user side is local area network (LAN), on the user side data receiver, install to send software emulation and conversion program, feedback data is sent to main website side with the form of local area network (LAN) physical frame by outer mutual network; And receiving software emulation and conversion program are installed on main website data transmitting equipment and miscellaneous equipment, and the simulation receiving equipment is in order to receive the passback data of this outer mutual network;
When the outer mutual network of setting between main website and the user side is wide area network or internet, on the user side data receiver, to install and send software emulation and conversion program, the form that feedback data is broken into the IP bag is sent to main website side by outer mutual network; And receiving software emulation and conversion program are installed on main website data transmitting equipment and miscellaneous equipment, and the simulation receiving equipment is in order to receive the passback IP bag of this outer mutual network.
Principle of the present invention is utilized outer mutual technology exactly, and the transmitting-receiving of data is divided on two channels, utilizes a uni-directional physical or the descending reception of logic channel, and other sets two-way physics or the up transmission of logic channel; In a system that does not support local area network (LAN) install software emulation and conversion program, and transmit local area network (LAN) physical frame or IP bag by outer mutual network channel, constructing a virtual local area network (LAN), thus the non-equilibrium transmission of realization data.
Now in conjunction with the accompanying drawings the present invention is described further:
Accompanying drawing 2 sends the data flow schematic diagram for main website;
Accompanying drawing 3 is a user side receiving data stream journey schematic diagram;
Accompanying drawing 4 is used the schematic diagram that non-equilibrium transmission method carries out network service for satellite communication system.
When accompanying drawing 6 is a local area network (LAN) for user side, the inventive method principle schematic.
As shown in Figure 1, communication method for unbalanced transmission network is realized by the following step:
Uni-directional physical of setting or logical channel are a VLAN (4) between main website (1) and user side (2);
Network (3) alternately outside between main website (1) and user side (2), setting another two-way physics or logical channel and be;
User side is by local area network (LAN) physical frame and the physical address broadcast frame or the IP bag of outer mutual network (3) transmission standard.
The local area network (LAN) physical frame of the standard that sends according to the user side physical address is gone up by main website (1) at VLAN (4);
Above-mentioned VLAN (4) can be the channel in unidirectional satellite communication system, the one-way CATV system etc.Above-mentioned outer mutual network (3) can be a local area network (LAN), also can be that two-way external network such as a wide area network or the internet of a standard constitutes.Outer mutual network (3) main website (1) and user side (2) correspondence be equipped with outer net transmitter (8) alternately and outside net receiver (7) alternately.Outer mutual net transmitter and outer mutual net receiver can be network interface cards, also can be the modulator-demodulator network equipments such as (MODEM).
As Fig. 2, shown in Figure 3, be main website (1) and user side (2) transmission data and receiving data stream journey schematic diagram.It is so substantially that main website (1) sends data flow: the data from other network channel and outer mutual network enter main website software emulation and conversion program, check the data that whether comprise local area network (LAN) physical frame or IP bag earlier, physical frame data in this way, deliver to " judging that this physical frame should send? " as not being, check further whether the IP bag that receives is legal, as illegal, abandon this packet, as legal, then this IP bag enters into " sending the software emulation module ", " be converted to the physical frame data ", " judging that this physical frame can send? " can send, then main website (1) is gone up according to user side physical address (as: MAC Address at VLAN (4), wait the peculiar address of receiving equipment ID number) send the local area network (LAN) physical frame to user side, deliver to that " one-way communication equipment " go up to send, as not, then abandons this physical frame data.User side receiving data stream journey is so substantially: user side sends reply data and other data, go up installation at user side (2) data receiver (10) and send software emulation and conversion program, " judge that outer mutual net is local area network (LAN) or wide area network ", local area network (LAN) in this way, then main website side is delivered to by " outer mutual network " in " by the packing of local area network (LAN) physical frame formats " back, main website side is then delivered to by " outer mutual network " after " by the packing of IP packet format " in wide area network or internet in this way.
As shown in Figure 4, use the schematic diagram that non-equilibrium transmission method carries out network service for unidirectional satellite communication system.
Shown in Figure 5, use unbalanced transmission network data flow schematic diagram for this unidirectional satellite communication system, its data transmission step is as follows:
Main website (1) goes up to user side at VLAN (4) according to local area network standard and sends the local area network (LAN) physical frame.Being about to application's data is to deliver on the one-way data transmitting apparatus (9) behind the IP bag by TCP/UDP module and IP module converts, and one-way data transmitting apparatus (9) is the local area network (LAN) physical frame with the IP packing data after send and mouthful send on the uni-directional physical channel (4) of VLAN (11);
User side (2) receives this local area network (LAN) physical frame data;
Go up installation at user side (2) data receiver (10) and send software emulation and conversion program, when user side sends data, the user side application program is corresponding, and will to send packing data by TCP/UDP module and IP module be to deliver on this user side one-way data receiving equipment (10) behind the IP bag, judge that outer mutual net is local area network (LAN) or wide area network, installed software emulation and conversion program are the local area network (LAN) physical frame with data conversion in the local area network (LAN) in this way, one-way data receiving equipment (10), and the data head that adds TCP/IP again sends on the outer mutual net receiver of main website by outer mutual network (3); Wide area network or internet in this way, one-way data receiving equipment (10) directly send to the IP bag on the outer mutual net (3) by the TCP/IP form, and are sent on the outer mutual net receiver.
Go up installation receiving software emulation and conversion program at main website data transmitting equipment (9), the simulation receiving equipment is in order to receive above-mentioned local area network (LAN) physical frame or IP bag; When main website received data, the diplomacy of main website (1) were after receiver confirms that these data are local area network (LAN) physical frame or IP bag mutually, and it is transferred to software emulation and conversion program in the one-way data transmitting apparatus, arrived primary application program through its IP layer/TCP layer.
The transmission of VLAN physical frame realizes by VLAN (4), and it is to receive by outer mutual network (3) to realize.
When accompanying drawing 6 is a local area network (LAN) for user side, the inventive method principle schematic.If user side is when being a local area network (LAN), certain machine (being generally the machine of making a start) that the form that a user side microcomputer breaks into the IP bag with the physical address and the IP address of all microcomputers in the whole local area network sends appointment on the main website local area network (LAN) to forms the IP physical address table of comparisons.
The present invention has broken through the various restrictions of conventional local area to the practical communication medium, thereby has broken one way system and the isolated mutually general layout of bidirectional mode in the legacy communications system, and both are organically combined, and realizes resource-sharing; The present invention has transformed existing unilateral network, make it to become complete outer mutual network, solve the intercommunication network problem of various non-outer mutual systems easily, can be applicable on unidirectional satellite communication network and the one-way CATV network network, also can be applicable on the bidirectional communication network; The present invention supports multiple LAN protocol comprehensively pellucidly, supports the application software of various local area network (LAN)s.
Claims (10)
1, a kind of communication method for unbalanced transmission network is to send data by main website (1), and user side (2) receives data, it is characterized in that:
A. uni-directional physical of setting or logical channel are a VLAN (4) between main website (1) and user side (2);
B. network (3) alternately outside between main website (1) and user side (2), setting another two-way physics or logical channel and be.
2, a kind of communication method for unbalanced transmission network according to claim 1, when outside mutual network when being a local area network (LAN), it is characterized in that:
A. user side is by the local area network (LAN) physical frame and the physical address broadcast frame of outer mutual network (3) transmission standard;
B. the local area network (LAN) physical frame of the standard that sends according to the user side physical address is gone up by main website (1) at VLAN (4).
3, a kind of communication method for unbalanced transmission network according to claim 1, when outside mutual network when being wide area network or internet, it is characterized in that: if user side is a unit, the form that user side breaks into the IP bag by outer mutual network (3) with the IP address and the physical address of our station sends certain machine (being generally the machine of making a start) the formation IP physical address table of comparisons of appointment on the main website local area network (LAN) to.
4, according to claim 1 or 3 described a kind of communication method for unbalanced transmission network, it is characterized in that: if user side is when being a local area network (LAN), certain machine (being generally the machine of making a start) that the form that a user side microcomputer breaks into the IP bag with the physical address and the IP address of all microcomputers in the whole local area network sends appointment on the main website local area network (LAN) to forms the IP physical address table of comparisons.
5, according to claim 1 or 3 described a kind of communication method for unbalanced transmission network, it is characterized in that: when being a separate unit microcomputer or a local area network (LAN) as if user side, the physical address of interior all microcomputers of a user side microcomputer or whole local area network and certain machine (being generally the machine of making a start) that appointment on the main website local area network (LAN) also can manually be delivered in the IP address form the IP physical address table of comparisons.
6, communication method for unbalanced transmission network according to claim 1 is characterized in that the data communication step is as follows between main website (1) and the user side (2):
A. main website (1) goes up according to client physical address (as: MAC Address, ID number etc. the peculiar address of receiving equipment) at VLAN (4) and sends the local area network (LAN) physical frame to user side;
B. user side (2) receives the local area network (LAN) physical frame.
7, according to claim 1 and 3 described communication method for unbalanced transmission network, when outside mutual network when being local area network (LAN), it is characterized in that:
A. go up to install send software emulation and conversion program at user side (2) data receiver (10), with feedback data with the form of local area network (LAN) physical frame by outward alternately network (3) be sent to main website side;
B., receiving software emulation and conversion program are installed on main website data transmitting equipment (9) and miscellaneous equipment, and the simulation receiving equipment is in order to receive the passback data of this outer mutual network.
8, according to the communication method for unbalanced transmission network described in claim 1 and 3, when outside mutual network when being wide area network or internet, it is characterized in that the data communication step is as follows between main website (1) and the user side (2):
A. go up at user side (2) data receiver (10) transmission software emulation and conversion program are installed, the form that feedback data is broken into the IP bag is sent to main website side by outer mutual network (3);
B., receiving software emulation and conversion program are installed on main website data transmitting equipment (9) and miscellaneous equipment, and the simulation receiving equipment is in order to receive the passback IP bag of this outer mutual network.
9, communication method for unbalanced transmission network according to claim 1 is characterized in that outer mutual network (3) can be made of local area network (LAN).
10, communication method for unbalanced transmission network according to claim 1 is characterized in that outer mutual network (3) can also be made of wide area network or internet etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001034332A CN1138353C (en) | 2000-03-10 | 2000-03-10 | Communication method for unbalanced transmission network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001034332A CN1138353C (en) | 2000-03-10 | 2000-03-10 | Communication method for unbalanced transmission network |
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| CN1313678A true CN1313678A (en) | 2001-09-19 |
| CN1138353C CN1138353C (en) | 2004-02-11 |
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| CNB001034332A Expired - Fee Related CN1138353C (en) | 2000-03-10 | 2000-03-10 | Communication method for unbalanced transmission network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100539588C (en) * | 2004-01-09 | 2009-09-09 | 株式会社东芝 | Communication equipment, communication means and communication system |
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- 2000-03-10 CN CNB001034332A patent/CN1138353C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100539588C (en) * | 2004-01-09 | 2009-09-09 | 株式会社东芝 | Communication equipment, communication means and communication system |
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| CN1138353C (en) | 2004-02-11 |
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