CN100359954C - Wireless transmission expansion coding and decoding method and apparatus - Google Patents
Wireless transmission expansion coding and decoding method and apparatus Download PDFInfo
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- CN100359954C CN100359954C CNB031170463A CN03117046A CN100359954C CN 100359954 C CN100359954 C CN 100359954C CN B031170463 A CNB031170463 A CN B031170463A CN 03117046 A CN03117046 A CN 03117046A CN 100359954 C CN100359954 C CN 100359954C
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Abstract
The present invention relates to an enhanced coding and decoding method for wireless transmission, which belongs to the technical field of communication technique application. The method has the key points that data transmitted between radio communication devices are identified in expansion, coded and decoded; according to the requirements of a user, the information head of each transmission task is automatically generated, so a coding process is added to the transmitted data, and a stage of coding process is added when the data is received by the other side; the selection range of a receiver is expanded by the increased coding and decoding processes, the transmitted information is transformed (coded) in transmission procedure according to a certain convention, and the received transmitted information can be decoded only by the activated receiver according to instruction in the information head. A device of the present invention is characterized in that a coding-decoding device is composed of a signal converter, a coding and decoding controller, a library of algorithms, an information head generator and an information head analyzer. The present invention solved the problems in expanding the sending and receiving ranges and enhancing the confidential performance in the information transmission, and the present invention is suitable for various applications of the information transmission in the wireless communication.
Description
Technical field
The present invention relates to the wireless communication technology application.
Background technology
At present, known to be used for the transmitting information wirelessly mode more, and the wireless transmission of data message stream is the product of electronic information technology development, and following messaging device is with more applications wireless messages transmission technology.Computer network as wireless connections, telephone system, circuit terminal, safety monitoring system, the control of home appliance and message transmission etc. lose nowhere, and the Radio Transmission Technology and the product of particularly blue bud technology and IEEE802.11 standard make the electronic message unit that people use always and the message transmission and the control of household electrical appliance, the line of all having an opportunity to get rid of carries out the wireless transmission of information and the controlled in wireless of function.The wireless transmission of data message stream belongs to the message transmission of broadcast mode, i.e. the information that transmit leg sent, and similar receiving system all can be received transmission and the signal of communicating by letter simultaneously in range of receiving.The wireless sound box of the employing IEEE802.11 standard realization of and for example going on the market recently, a plurality of same categories of device in the transmitting-receiving scope of wireless transmission such as wireless camera watch-dog all can be received identical transmission information, A family opens sound equipment, channel is lucky when identical, because piconet notion scheduling allocated channel is very limited, and in the difficulty of consideration technology realization at present, factors such as efficient effect, most of product conformance with standard on information format, but simplify or accept or reject all having aspect channel and the transmitting-receiving, this makes has the wireless sound box of very big chance B family also can sound.This mainly is can not 100% to realize or the be above standard product (as blue bud product in co-extensive above 8 products) of requirements of service condition by standard, all above-mentioned defective might occur.Application number 99809446.3 is a kind of " the adaptive digital video coder-decoders that are used for wireless transmission ".Be suitable for wireless transmission video data between network and mobile radio station.Be particularly useful for the unpredictable situation of transmission error, bear by it and monitor the one or more reception or the parameter that transmits.The report of relevant wireless transmission expansion coding and decoding method and apparatus is not learned as yet.
Summary of the invention
The present invention is directed to that transmitting data information flows to line identifier and encoding and decoding and a kind of wireless transmission expansion coding and decoding method of designing particularly identifies and encoding and decoding wireless transmission data information.Improve transmitting-receiving scope and confidentiality and improve transmission specific aim and validity.The objective of the invention is to adopt following technical scheme to realize.
A kind of wireless data information stream carries out wireless transmission expansion coding and decoding method, this method is that the data of transmitting between the radio communication device are expanded sign and encoding and decoding, automatically generate the information header of each transformation task according to user's request, before the information header that generates each transformation task is carried in the transmission data, and before wireless transmission and after the recipient receives data, handle by the coding and decoding that increases, promptly the algorithm by a certain agreement carries out conversion or coding in the process of transmission and coding and decoding, thereby realizes that the expansion recipient selects the scope of coding and decoding; The recipient who only is activated in the process of wireless transmission carries out decoding processing according to the instruction in the information header to the transmission information of receiving.
In the wireless communication technology application, radio communication device has two at least, and has same transmission protocol or algorithm.
It is that one group of algorithm that information is carried out the reducibility conversion is handled this characteristics to data message that the present invention utilizes coding.Increasing the level encoder processing is by the algorithm of arranging the data message that will send to be carried out digit conversion to handle.The data message that need are sent is the packets of information of the compliance with wireless communication device transmission reference format of being arranged.
The encoding process of described wireless transmission expansion coding and decoding method is to utilize one group of algorithm that information is carried out the reducibility conversion that data message is handled.
It is by the algorithm of arranging the data message that will send to be carried out the logic OR mathematic(al) manipulation to handle that described wireless transmission expansion coding and decoding method increases the level encoder processing.
The feature of described wireless transmission expansion coding and decoding method recipient range of choice is, has a plurality of recipients simultaneously, by recipient's receiving device, analyzes receiving the extend information head in the information, differentiates the coding that whether has self to activate.
The recipient that described wireless transmission expansion coding and decoding method is activated starts the coding and decoding controller in the receiving device, by instructing in the information header, chooses retrieving algorithm transmission information is carried out decoding processing.
Described wireless transmission expansion coding and decoding method information header should be provided with the active coding that can activate recipient and receiving device at least, the decoding instruction that is used for selective reduction data message mapping algorithm, the information header check code, and be generated as the coded data that meets the prime information form.
The algorithms library that the conversion of described wireless transmission expansion coding and decoding method encoding and decoding and retrieving algorithm are formed leaves in the codec of each communicator simultaneously.
Be not difficult to find out that with reference to accompanying drawing characteristics of the present invention are by signal converter 7, coding and decoding controller 2, algorithms library 8, information header maker 10, information header analyzer 9 are formed coder-decoder A; By the data processor 3 of beating, unpack, the receipts control device B that transceiver 4, transceiver controller 5 constitute is the form formation with module, during transceiver 4 work, transmit leg is not considered which kind of transmission flaws that sending module itself exists, and only according to said method the data that will transmit is entered encoding process by data handler 1.Processing method is: the recipient's relevant data that is provided according to transmitting-receiving target maker 6 by coding and decoding controller 2, comprise address etc., assignment and recalls information are first-born grows up to be a useful person 10, generate the information header that this sends task, information header comprises the algorithm invokes instruction in recipient's activation instruction sign indicating number and the algorithms library 8 at least; The expansion of coding and decoding controller 2 information header data is connected on the data message stream front that will send, and the data that will send are handed over to signal converter 7 by the algorithm in the information header, the transmission data send data by receiving the control device by its intrinsic send mode through handing over behind the signal converter to receiving the control device; The recipient receives to the information of receiving control device module, becomes data streams and passes to coder-decoder but by former design standard the data message stream that receives is unpacked, and coding and decoding controller 2 at first recalls information header analyzer 9 decomposites the activation instruction sign indicating number; If not this recipient's active coding then reinitializes, and make and receive the control device and enter resting state, wait for receipt of call next time; If when receiving this recipient's active coding, notice is received the control device and is worked on, and calls respective algorithms by the instruction of the algorithm in the information header in algorithms library 8 simultaneously, and assignment decodes for signal converter 7, and reduction back data flow is sent to data handler 1.
Go up routine described wireless transmission expansion coding and decoding method, it is received the control device and is not constituted with modular form, decompose in addition and reconstruct, coder-decoder is arranged among the transceiver module, be that data message stream after will handling in the data handler 1 meets at the data processor 3 of beating, unpack, the data after the packing are defeated by coder-decoder A; Volume is separated controller 2 after receiving the transmitting-receiving control signal of transceiver controller 5, the first-born 10 generation information headers of growing up to be a useful person of recalls information, from algorithms library 8, call corresponding algorithm to signal converter 7 simultaneously by method for designing, by signal converter information header is expanded the data flow front end be connected to after the conversion and send transceiver 4 together to, data message stream is sent.The recipient, when transceiver 4 is received wireless signal, transfer to coder-decoder A earlier, analyze the activation instruction sign indicating number that whether has this receiver by information header analyzer 9, then stop when not having receiving, enter dormancy; During activation, coding and decoding controller 2 is given signal converter 7 according to the corresponding retrieving algorithm of algorithm instruction calls of information header, the data message stream that is docked to the information header back reduces, pass to the data processor 3 of beating, unpack after the reduction and unpack, and the data of unpacking are passed to data handler 1.This scheme can be simplified hardware designs, and coding and decoding controller and transceiver controller are merged a shared processor controls (as MCU).
Sub as the specific embodiment of the inventive method as Fig. 1 and 2, be not difficult to find out that this wireless transmission expansion coding and decoding device is by signal converter 7, coding and decoding controller 2, algorithms library 8, information header maker 10, information header analyzer 9 are formed coder-decoder A (seeing the a-quadrant of the double dot dash line among Fig. 1).By the data processor 3 of beating, unpack, the receipts control device B (the B zone of the double dot dash line among Fig. 1) that transceiver 4, transceiver controller 5 constitute is that the form with module constitutes, and is inserted by antenna, is arranged at before the coder-decoder A, is connected with transmitting-receiving target maker 6; Between data handler 1 and receipts control device, coder-decoder A is set.
In the above-mentioned wireless transmission expansion coding and decoding device, by the data processor 3 of beating, unpack, the receipts control device B that transceiver 4, transceiver controller 5 constitute, the form with module constitutes.They to be to decompose and reconstruct, are about to the data processor 3 of beating, unpack and are arranged between data handler 1 and the coder-decoder A.
This device solves a plurality of transmitting devices how to allow target receive can correctly to receive transmission information and the problem that undelegated receiving system can not receive or can not correctly receive when using simultaneously.
Description of drawings
Fig. 1 is an operation principle block diagram of the present invention;
Fig. 2 is another scheme operation principle block diagram among Fig. 1.
Above figure number and title: 1, data handler, 2, coding and decoding controller, 3, the data processor of beating, unpack, 4, transceiver, 5, transceiver controller, 6, transmitting-receiving target maker, 7, signal converter, 8, algorithms library, 9, the information header analyzer, 10, information header maker, 11, transmit the target maker.
Embodiment
Embodiment of the present invention is comparatively simple, and is as long as antenna is inserted transceiver 4 that this device is in running order, and the wireless transmission expansion coding and decoding that enters this device has just been put into practice.
Claims (9)
1, a kind of wireless data information stream carries out the wireless transmission expansion and compiles, coding/decoding method, this method is that the data of transmitting between the radio communication device are expanded sign and encoding and decoding, automatically generate the information header of each transformation task according to user's request, before the information header that generates each transformation task is carried in the transmission data, and before wireless transmission and after the recipient receives data, by the volume that increases, decoding processing, promptly in transmission and volume, algorithm by a certain agreement in the process of decoding carries out conversion or coding, thereby realizes that the expansion recipient selects to compile, the scope of decoding; The recipient who only is activated in the process of wireless transmission carries out decoding processing according to the instruction in the information header to the transmission information of receiving.
2, wireless transmission expansion coding and decoding method according to claim 1 is characterized in that radio communication device has two at least, and has same transmission protocol or algorithm.
3, wireless transmission according to claim 1 expansion coding and decoding method, needing it is characterized in that the data message that sends is the packets of information of the compliance with wireless communication device transmission reference format of being arranged.
4, the method for wireless transmission according to claim 1 expansion coding and decoding is characterized in that encoding process is to utilize one group of algorithm that information is carried out the reducibility conversion that data message is handled.
5, wireless transmission expansion coding and decoding method according to claim 1, it is characterized in that increasing the level encoder processing is by the algorithm of arranging the data message that will send to be carried out the logic OR mathematic(al) manipulation to handle.
6, wireless transmission expansion coding and decoding method according to claim 1, the feature that it is characterized in that recipient's range of choice is to have a plurality of recipients simultaneously, by recipient's receiving device, to receiving that the extend information head in the information analyzes, differentiate the coding that whether has self to activate.
7, the method for wireless transmission according to claim 6 expansion coding and decoding is characterized in that the recipient that is activated starting the coding and decoding controller in the receiving device, by instructing in the information header, chooses retrieving algorithm transmission information is carried out decoding processing.
8, wireless transmission expansion coding and decoding method according to claim 1, it is characterized in that information header should be provided with the active coding that can activate recipient and receiving device at least, the decoding instruction that is used for selective reduction data message mapping algorithm, the information header check code, and be generated as the coded data that meets the prime information form.
9, wireless transmission expansion coding and decoding method according to claim 1 is characterized in that the conversion of encoding and decoding and the algorithms library that retrieving algorithm is formed, and leaves in simultaneously in the codec of each communicator.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB031170463A CN100359954C (en) | 2003-05-20 | 2003-05-20 | Wireless transmission expansion coding and decoding method and apparatus |
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| CNB031170463A CN100359954C (en) | 2003-05-20 | 2003-05-20 | Wireless transmission expansion coding and decoding method and apparatus |
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| CN1549455A CN1549455A (en) | 2004-11-24 |
| CN100359954C true CN100359954C (en) | 2008-01-02 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286846A (en) * | 1998-02-17 | 2001-03-07 | 路特株式会社 | Radio communication equipment and communication method |
| CN1313009A (en) * | 1998-08-07 | 2001-09-12 | 诺基亚移动电话有限公司 | Adaptive digital video coding-coding device for wireless transmission |
| CN1409912A (en) * | 1999-10-08 | 2003-04-09 | 西门子公司 | Method for sending data of over packet-switched radio network and method for receiving data over packet switched radio network |
| CN2697990Y (en) * | 2003-05-20 | 2005-05-04 | 周锡卫 | Expanded coding/decoding device for wireless transmission |
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2003
- 2003-05-20 CN CNB031170463A patent/CN100359954C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286846A (en) * | 1998-02-17 | 2001-03-07 | 路特株式会社 | Radio communication equipment and communication method |
| CN1313009A (en) * | 1998-08-07 | 2001-09-12 | 诺基亚移动电话有限公司 | Adaptive digital video coding-coding device for wireless transmission |
| CN1409912A (en) * | 1999-10-08 | 2003-04-09 | 西门子公司 | Method for sending data of over packet-switched radio network and method for receiving data over packet switched radio network |
| CN2697990Y (en) * | 2003-05-20 | 2005-05-04 | 周锡卫 | Expanded coding/decoding device for wireless transmission |
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| CN1549455A (en) | 2004-11-24 |
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