CN1307282A - Radio data transmitting method and device - Google Patents
Radio data transmitting method and device Download PDFInfo
- Publication number
- CN1307282A CN1307282A CN00100769A CN00100769A CN1307282A CN 1307282 A CN1307282 A CN 1307282A CN 00100769 A CN00100769 A CN 00100769A CN 00100769 A CN00100769 A CN 00100769A CN 1307282 A CN1307282 A CN 1307282A
- Authority
- CN
- China
- Prior art keywords
- electronic installation
- data
- time band
- program
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Small-Scale Networks (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The radio data transmitting method and device utilizes N+1 time bands for the data transmission among N electronic devices. Of the N+1 time bands, the first one is control one for a master controller to perform control and the other N ones are data ones for N electronic devices to send out and receive data. After an electronic device is turned on, at least once polling is performed to determine its address and time band for the electronic device to send data with the data reception being performed in any time band. The present invention makes it possible to realize fast radio data transmission among several electronic devices without need of complex timing and synchronizing equipment.
Description
The present invention is the technical field of interrelated data communication, refers to a kind of radio data transmitting method and device that is used between the multi-section electronic installation especially.
In the technology of known data communication, when desiring in certain areal extent, to reach when the computer more than two ones or two ones or other electric room carry out the transmission of data, the mode of normal use promptly is to see through the line of local-area network (Local Area Network) so that carried out the data exchange between computer and computer, be the medium that are used as data transmission with the cable of entity only because of local-area network, therefore, when the use of reality, must consider the configuration of cable and cause computer only can be installed in certain place and can't move in response to the needs on using, and place in some application, for example in the dust free room of semiconductor factory, its difficulty is also arranged for the maintenance of cable.
And be to avoid the problem of using cable to produce, promptly there is the data of carrying out between computer and computer to exchange with Wireless transmission mode, for example existing bluetooth tooth (Blue Tooth) product, promptly be with demal multiplex (MUX) (Code Division Multiple Accessing, CDMA) encoding mechanism of a virtual random number of quadrature of given every part device, to separate different multiplex's transmitting devices, use the radio wave band of 2.4GHz, transmitting range is generally between 5 to 15 meters, this kind mode needs complicated coding and specially designed wireless transmit and load mode, its transfer rate is 720Kbps, and cost an arm and a leg at present, be mainly used in replacing the low speed information transmission line, as concentric cable, facsimile unit, and the voice of peripheral device or message transmission, its transmitting bandwidth only is fit to transmit simple voice data, and the quick transmission of inapplicable great mass of data.So aforesaid data transmission mode gives improved necessity in fact.
The inventor whence originally in the spirit of positive invention, is urgently thought a kind of " radio data transmitting method and device " that can address the above problem because of in this, and several times research experiment is eventually to finishing this novel progressive invention.
The objective of the invention is is providing a kind of radio data transmitting method and device, and it can make existing data transmission and networking transmission system change into wireless transmission with simple hardware update, and is applicable to the quick transmission of great mass of data.
For reaching aforesaid purpose, the present invention is to utilize N+1 time to bring into to walk to the data transmission between few N portion electronic installation, wherein, first time band is for controlling the control time band of operation for a master control set, all the other N time bands are respectively the data time band of this N portion electronic installation sending and receiving data of confession, and after the start of electronic installation, it is at first carried out and starts the line program carrying out poll at least once, and determine this electronic installation the address and under the time band; This electronic installation is carried out the construction program then, and it is in one's own time band transmission data, and can the time in office be with the reception data; And reach the standard grade with application and when producing collision when the program that has electronic installation more than two ones to start line simultaneously, then carry out the exception condition handling procedure, after the delay with random number respectively hang oneself for the moment by these electronic installations between, overline starts the program of line again, or, send the destructing message at very first time band by master control set when when data transmission bumps; And, take place and master control set when sending the destructing message in collision, carry out the destructing program, with order except master control set the electronic installation on wired all abandon the address, get back to the program of startup line; This destructing program and after a package that preestablishes number of times sends again, send the destructing message by master control set at very first time band, and the use traffic of adding up each electronic installation, and decide that an electronic installation is a master control set, remaining electronic installation is then abandoned its address, use and carry out right of priority optimal allocation program, wherein, this right of priority optimal allocation program is to set the bigger electronic installation of use traffic can obtain more than one time band or address, the less electronic installation of use traffic then gives destructing by master control set and enters an idle sequence, and its address can reach the virtualized effect in address according to this in order to accept the electronic installation that other new application is reached the standard grade.
Because modern design of the present invention can provide on the industry and utilize, and truly have the enhancement effect, so apply for a patent in accordance with the law.
For making your juror can further understand structure of the present invention, feature and purpose thereof, the attached now detailed description with graphic and preferred embodiment as after, wherein:
Fig. 1 is the functional block diagram of wireless data transmission device of the present invention.
Fig. 2 is the Wi-Fi configuration diagram according to radio data transmitting method of the present invention operated.
Fig. 3 shows a Datagram form.
Fig. 4 is for opening the Job Operations synoptic diagram of beginning during the line program.
Fig. 5 is the Job Operations synoptic diagram when the construction program.
Fig. 6 is the Job Operations synoptic diagram when the exception condition handling procedure.
Fig. 7 is the Job Operations synoptic diagram when the right of priority optimal allocation program.
The hardware structure of relevant wireless data transmission device 10 of the present invention, please be earlier with reference to shown in Figure 1, it mainly is to comprise wireless transceiver 11, multiplexer 12, de-multiplexer 13, full duplex selector switch 14, and microprocessor 15 etc., wherein, this wireless transceiver 11 is made of high frequency variable frequency transmitter and receiver, it can adjust change frequency (frequency values is between 2.4GHz-2.5GHz) according to the planning of this microprocessor 15, and the mode of adopting pulse code modulation (PCM), pattern with radiowave transmits or the reception data, so that reach not space-constrained data transmission, and can avoid interference the bust this that is caused.
This multiplexer 12 is that a plurality of data bits with a source of information (Data Pool) 16 carry out multiplex's processing, for the transmission data, otherwise, this de-multiplexer 13 then is the data that receives to be separated the multiplex (MUX) handle, for being stored to this source of information 16, the operating speed of this multiplexer 12 and de-multiplexer 13 and can be again by microprocessor 15 according to actual situation and be set, so that obtain the fastest transmission usefulness.
This full duplex selector switch 14 is to be arranged between this wireless transceiver 11 and this multiplexer 12 and the de-multiplexer 13, use under the control of this microprocessor 15, select this wireless transceiver 11 for being connected to this multiplexer 12 or de-multiplexer 13, and can carry out the transmission or the reception of data respectively.
Aforesaid wireless data transmission device 10 is with the bus slot that utilizes standard (for example isa bus) or interface line (for example Industrial PC 104 interfaces) and an electronic installation 19 lines, use the Datagram that electronic installation 19 will be transmitted and read to this source of information 16 by this microprocessor 15, and under the control of this microprocessor 15, transmitted via this wireless transceiver 11.Otherwise the Datagram that is received via this wireless transceiver 11 also is under the control of microprocessor 15, delivers to this electronic installation 19 via this source of information 16.
When utilizing wireless data transmission device 10 of the present invention to carry out the data transmission of 19 of multi-section electronic installations, need one aforesaid wireless data transmission device 10 to be set at each electronic installation 19 line, in a preferred embodiment of radio data transmitting method of the present invention, it is to carry out data transmission (N 〉=2 at most between N portion PC (PC), N is a natural number), be with (Time Slice) T and be divided into N+1 time with time cycle that will transmission
0-T
NTransmit control message or data, in the actual example as shown in Figure 2, suppose that N is 16, then can distribute 16 address A
1-A
16Give these 16 PC,, and utilize time band T so that these 16 PC constitute a Wi-Fi
0-T
16Carry out wireless data transmission, wherein, time band T
0For controlling the control time band of operation for a master control set, all the other time band T
1-T
16Be respectively data time band for these 16 PC sending and receiving data.
And after PC start, the wireless transmitter of its line is promptly under the control of microprocessor 15, carrying out a program that starts line reaches the standard grade requiring, the program of this startup line is that the poll that at first carries out once receives with the package that carries out 17 times at this 17 times band, the form of its package can be referring to shown in Figure 3, be by header portion (Header), address field, control section, the data section, inspection portion (Checksum) and stop bit group (Stop Byte) and continue and form, Fig. 4 then illustrates the use situation at each time band of poll, wherein, Tx and TxR represent respectively to transmit and send back and answer, Rx and RxR represent respectively to receive and receive and respond, and when poll, the transmission of package is to be closed (Disabe), only carry out the reception of package, behind poll through carrying out repeatedly (for example 16 times), then according to following rule with the address that determines this PC by package number that each poll was received and under the time band:
(1) do not have any package of reception: its demonstration does not have any other PC on line, and therefore, the address of setting this PC is A
1, its up time band T
1, and to specify this PC be master control set, has the control of use activity duration band T
0Power.
(2) receive two packages: it shows a PC and also is with T on line service time
0And T
1, therefore, the address of setting this PC is A
2, the time band that uses is T
2
(3) receive i package (2≤i＜17): it shows (i-1) PC of portion on line, and the address of then setting this PC is A
i, the time band that uses is T
i
(4) receive only a package or receive greater than 17 packages: its show receive wrong, and if control time band T
0Package receive normally, then can judge control according to this package, increase again poll with the address that determines this PC and under the time band, if control time band T
0Package receive undesired or do not receive, then restart the program of line.
(5) receive 17 packages, it is represented full line on the line of Wi-Fi and can't reach the standard grade, and need enter one and wait for sequence.
After successfully reaching the standard grade, promptly carry out transmission or the reception of construction program to carry out Datagram through starting the line program under the control of its microprocessor 15 as a PC again, the order of its transmission is by T
0, T
1To T
16Time band and in regular turn by address A
1To A
16PC transmit package, that is each PC is can be in one's own time band transmission data, and can time band reception data in office.
As address A
iPC be with T in the time
iWhen not sending data, then need send the package (NOP) of being failure to actuate and be with this PC to be failure to actuate, and respectively be failure to actuate counter and a cycle counter be increased progressively, wherein to be illustrated in this time, this cycle counter is to count up at 17 o'clock, resets to 1 and cycle count.And as this PC at this moment between band transmission data to another PC and successfully receive respond handshaking signal after, then respectively an operation counter and this cycle counter are increased progressively, only if when successfully not receiving handshaking signal, then need heavily give at next poll.And at T
iTime band in addition, this PC only can receive Datagram or respond handshaking signal, and this cycle counter is increased progressively.
The example explanation of the construction program of Fig. 5 is as address A
1PC (with PCA
1Expression) to transmit package to address A
2PC (with PCA
2Expression), PCA then
1At time band T
1This had destination address A
2Package broadcasting and by PCA
2Receive and the response handshaking signal, remaining PC does not then respond, at time band T
2As PCA
2Do not transmit any data, then send the NOP package and all do not respond for master control set and all the other PC.
And when if the program that has PC more than two ones to start line is simultaneously reached the standard grade with application, promptly produce collision and can't obtain response, at this moment, the wireless data transmission device 10 of these PC promptly carries out an exception condition handling procedure, with random number between respectively asking for for the moment and after the delay of this time, overline starts the program of line to get rid of the generation of collision again.In addition, radio data transmitting method of the present invention is the transmitting-receiving time of separating each PC in the mode that the time separates, so the collision of data can not take place because of the error of sequential, but owing to count separately after in each PC application, therefore, might leak meter (receive lose) or synchronously counting (have two above PC across same time be with) may, put and cause the collision of data, Fig. 6 illustrates and works as PCA
2With PCA
5Because of miscount is with T in the time
iTransmit package simultaneously, cause the mixing of package and can't receive and respond approval, therefore, in this exception condition handling procedure, after taking turns transmitting-receiving through one, as loop count less than 17, when next poll, master control set (PCA
1) need send the destructing signal to carry out the reorganization of line again, use the collision of eliminating data.
And take place and master control set when sending the destructing message in collision, the wireless data transmission device 10 of these PC promptly carries out a destructing program, and it is except that master control set, and the PC on order institute is wired all abandons the address, and the program of returning sharp startup line is to obtain the address again.In addition, this destructing program also can send the back and be carried out at a package that preestablishes number of times, carrying out the right of priority optimal allocation, that is, can preestablish a finite value M, after the data of line running M * 17 polls sends, be with T in the time by master control set
0Send the destructing message, and the value of adding up the operation counter of each PC and the counter of being failure to actuate, to determine the use traffic of each PC, the PC that decides the use traffic maximum according to this is next master control set of appointing, and send the master control set designated code to this PC, remaining PC then abandons its address, uses and carries out right of priority optimal allocation program.
And in this right of priority optimal allocation program, be that the bigger PC of value that sets operation counter can obtain more than one time band, and count K less than 16 the time as the PC that reaches the standard grade, can obtain more than one address, that is T
I1, T
I2..., T
IK∈ T
jAnd A
I1, A
I2... A
IK∈ A
j, wherein, 1≤K≤16, i ≠ j, the PC that the value of the counter of being failure to actuate is bigger then give destructing by master control set and enter an idle sequence (I dleQueue), and Fig. 7 is an example of this right of priority optimal allocation program of explanation, and it shows PCA
iBe to have bigger use traffic and PCA
jAnd A
kThen have less use traffic, therefore, the master control set ruling is passed to PCA with control
i, and the destructing message of being sent is promptly specified PCA
jAnd the extremely idle sequence 71 of A engineering, and with address A
jBe assigned to PCA
1, A
KThen become address blank, recombinate to obtain optimized service efficiency through line, when and for example the PC in idle sequence 71 will transmit data, it was advanced into first-class earlier and treats sequence 72 after waking, begin to start the program of line again to obtain the address.
This right of priority optimal allocation program also can be reached the virtualized effect in address again, it is when the PC of i portion enters idle state (1≤i≤K≤16), then can accept the other 16-i PC of portion application simultaneously reaches the standard grade to carry out the transmission of data, therefore, the address is reusable and reach the effect of virtual expansion.
To sum up institute is old, and no matter the present invention is all showing it totally different in the feature of known techniques with regard to purpose, means and effect, is the quantum jump on the wireless communication technology, earnestly asks your juror to perceive, and grants quasi patent early, so that Jiahui society, the true feeling moral just.Only it should be noted that above-mentioned many embodiment give an example for convenience of explanation, the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (18)
1. radio data transmitting method, it is the data transmission that utilizes N+1 time to bring into to walk between few N portion electronic installation, wherein, first time band is for controlling the control time band of operation for a master control set, all the other N time bands are respectively the data time band of this N portion electronic installation sending and receiving data of confession, and this method mainly comprises:
Starting the line program, is after an electronic installation is started shooting, and carries out poll at least once, and determines the address of this electronic installation and affiliated time band, and wherein, poll once is to carry out N+1 time package reception in this N+1 time band;
The construction program, it is the line that transmits in order to set up, wherein, each electronic installation is to be with the transmission data in the one's own time, and can the time in office be with the reception data;
The exception condition handling procedure, it is that the program that has electronic installation more than two ones to start line is at the same time reached the standard grade with application and when producing collision, between respectively hanging oneself for the moment by these electronic installations after the delay of random number, overline starts the program of line again, or when data transmission bumps, send the destructing message at very first time band by master control set; And
The destructing program, it is to take place and master control set when sending the destructing message in collision, except that master control set, the electronic installation on order institute is wired is all abandoned the address, gets back to the program of startup line.
2. radio data transmitting method according to claim 1, it is characterized in that, wherein, start in the line program, after an electronic installation start and carrying out at least once poll in this, receive any Datagram as nothing, then to set this electronic installation be master control set and be positioned at first address, and it can use this control time band and first data time band, and as receive i Datagram (2≤i＜N+1), then setting this electronic installation is to be positioned at the i address, and it can use i data time band.
3. radio data transmitting method according to claim 2, it is characterized in that, wherein, receive only a Datagram or receive as this electronic installation greater than N+1 Datagram, then judge receive in the Datagram of control time band whether normal, in this way, then increase the program of poll and repeated priming line, as not, then the program of repeated priming line is carried out N+1 time poll again.
4. radio data transmitting method according to claim 2 is characterized in that, wherein, receives N+1 Datagram as this electronic installation, and then this electronic installation enters a preferential sequence of waiting for, waits for destructing message package.
5. radio data transmitting method according to claim 1 is characterized in that, wherein, in this construction program, do not send data as an electronic installation at one's own time band, then send the package of being failure to actuate, and respectively be failure to actuate counter and a cycle counter increased progressively.
6. radio data transmitting method according to claim 5, it is characterized in that, wherein,, after one's own time band transmission data is to another electronic installation and reception response handshaking signal, respectively an operation counter and this cycle counter are increased progressively as this electronic installation.
7. radio data transmitting method according to claim 6 is characterized in that, wherein, when this electronic installation was with in the non-one's own time, only can receives Datagram or respond handshaking signal, and this cycle counter is increased progressively.
8. radio data transmitting method according to claim 7 is characterized in that, wherein, this cycle counter is when counting up to N+1, resets to 1 and cycle count.
9. radio data transmitting method according to claim 8, it is characterized in that wherein, this exception condition handling procedure is after taking turns transmitting-receiving through one of N+1 time band, during less than N+1, send the destructing signal at very first time band as the value of this cycle counter by master control set.
10. radio data transmitting method according to claim 6, it is characterized in that, wherein, this destructing program is sent the destructing message by master control set at very first time band, and is added up the value of the operation counter of each electronic installation and the counter of being failure to actuate after a package that preestablishes number of times sends, to determine the use traffic of each electronic installation, and decide that an electronic installation is this master control set, remaining electronic installation is then abandoned its address, uses and carries out right of priority optimal allocation program.
11. radio data transmitting method according to claim 10, it is characterized in that, wherein, this right of priority optimal allocation program is that the bigger electronic installation of value of setting operation counter can be obtained more than one time band or address, and the electronic installation that the value of the counter of being failure to actuate is bigger then gives destructing by master control set and enters an idle sequence.
12. radio data transmitting method according to claim 10 is characterized in that, wherein, this right of priority optimal allocation program is that its address can be in order to accept the electronic installation that other new application is reached the standard grade when having at least one electronic installation to enter idle sequence.
13. wireless data transmission device, be and an electronic installation line with utilize a plurality of times band and carry out and other electronic installation between data transmission, wherein, first time band is for controlling the control time band of operation for a master control set, remaining time band is the data time band for these electronic installation sending and receiving data, it is characterized in that this wireless data transmission device mainly comprises:
One wireless transceiver, it is with wireless pattern sending and receiving data;
One multiplexer is that a plurality of data bits with a source of information carry out multiplex's processing, for the transmission data;
One de-multiplexer is the data that receives to be separated the multiplex (MUX) handle, for being stored to this source of information;
One full duplex selector switch is in order to select this wireless transceiver for being connected to this multiplexer or de-multiplexer, to carry out the transmission or the reception of data respectively: and
One microprocessor, be in order to control this wireless transceiver, multiplexer, de-multiplexer and full duplex selector switch, and carry out the transmitting-receiving of wireless data, wherein, after this electronic installation start, be to carry out a program that starts line with via at least once poll, and determine the address of this electronic installation and affiliated time to be with, in the middle of, poll once is to receive in the package that these a plurality of time bands carry out respectively repeatedly, by this, this electronic installation can be with the transmission data in the one's own time, and can time band reception data in office.
14. wireless data transmission device according to claim 13, it is characterized in that, wherein reach the standard grade with application and when producing collision, after this microprocessor was promptly waited for the delay of random number of a time, overline started the program of line again when the program that has other electronic installation start line simultaneously.
15. wireless data transmission device according to claim 14 is characterized in that, wherein, when data transmission bumped, it received the destructing message of being sent at very first time band by master control set, and abandons its address and get back to the program that starts line.
16. wireless data transmission device according to claim 13, it is characterized in that, wherein, start in the line program, after this electronic installation start and carrying out at least once poll in this, receive any Datagram as nothing, then to set this electronic installation be master control set and be positioned at first address, and it can use this control time band and first data time band, and as receive i Datagram, then setting this electronic installation is to be positioned at the i address, and it can use i data time band.
17. wireless data transmission device according to claim 16, it is characterized in that, wherein, after a package that preestablishes number of times sends, this master control set is sent the destructing message at very first time band, and adds up the use traffic of each electronic installation, and decides that an electronic installation is this master control set, remaining electronic installation is then abandoned its address, uses and carries out right of priority optimal allocation program.
18. wireless data transmission device according to claim 17, it is characterized in that, wherein, this right of priority optimal allocation program is to set the bigger electronic installation of use traffic can obtain more than one time band or address, and the less electronic installation of use traffic then gives destructing by master control set and enters an idle sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00100769A CN1121651C (en) | 2000-02-03 | 2000-02-03 | Radio data transmitting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00100769A CN1121651C (en) | 2000-02-03 | 2000-02-03 | Radio data transmitting method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1307282A true CN1307282A (en) | 2001-08-08 |
| CN1121651C CN1121651C (en) | 2003-09-17 |
Family
ID=4575659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00100769A Expired - Fee Related CN1121651C (en) | 2000-02-03 | 2000-02-03 | Radio data transmitting method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1121651C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1668041B (en) * | 2004-03-12 | 2010-12-01 | 松下电器产业株式会社 | Communication apparatus and communication method |
| CN101553005B (en) * | 2009-04-29 | 2011-03-30 | 重庆四联微电子有限公司 | Method for adding time division mechanism in CSMA/CA by the aid of CTS |
| CN102843712A (en) * | 2011-06-21 | 2012-12-26 | 智邦科技股份有限公司 | Method for testing communication effectiveness of more than two wireless signal access devices |
-
2000
- 2000-02-03 CN CN00100769A patent/CN1121651C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1668041B (en) * | 2004-03-12 | 2010-12-01 | 松下电器产业株式会社 | Communication apparatus and communication method |
| CN101553005B (en) * | 2009-04-29 | 2011-03-30 | 重庆四联微电子有限公司 | Method for adding time division mechanism in CSMA/CA by the aid of CTS |
| CN102843712A (en) * | 2011-06-21 | 2012-12-26 | 智邦科技股份有限公司 | Method for testing communication effectiveness of more than two wireless signal access devices |
| CN102843712B (en) * | 2011-06-21 | 2016-08-24 | 智邦科技股份有限公司 | The method of the communication usefulness of more than two wireless signal access devices of test |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1121651C (en) | 2003-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6980819B2 (en) | Radio communication system, and apparatus, method, and computer program for said radio communication system | |
| WO2007128165A1 (en) | A short-range wireless networks system and erection method which allot time slots with multi-channel rf transceiver | |
| US7729382B2 (en) | Wireless computer system with queue and scheduler | |
| US7277419B2 (en) | Supporting disparate packet based wireless communications | |
| KR100654465B1 (en) | Apparatus and method for wireless network relay | |
| CN1930829A (en) | System and method to enable WUSB applications in a distributed UWB MAC | |
| CN100592730C (en) | Hybrid-type data transmission apparatus and method for high performance wireless LAN | |
| US20090323723A1 (en) | Wireless communication apparatus and packet transfer method thereof | |
| KR100436756B1 (en) | wireless communication system capable of saving time for mutual data communication in sniff mode | |
| EP1289193B1 (en) | Wireless communication method for preventing communication interference and cut-off in one-to-multi wireless communication | |
| JPH0851470A (en) | Radiocommunication processor system and radiocommunication system | |
| US20040117076A1 (en) | Remote control system for locomotives using a TDMA communication protocol | |
| CN1307282A (en) | Radio data transmitting method and device | |
| US5838905A (en) | Remote terminal operation | |
| US7421051B2 (en) | Radio communication system and method, wireless network forming device, radio transmission unit and method, and radio reception unit and method | |
| JP3698068B2 (en) | Communication system, communication information division transmission system, and communication information division apparatus | |
| KR101217656B1 (en) | Medium access control apparatus based on a wireless personal area network | |
| JP2005277481A (en) | Simultaneous communication method and radio communication equipment | |
| TW453071B (en) | Wireless data transmission method and apparatus | |
| US20050281283A1 (en) | Two way serial communication | |
| JP2675374B2 (en) | Wireless communication control method | |
| US7636329B2 (en) | Wireless local area network processing device having multiple parallel radios | |
| CN109857686B (en) | Method for converting synchronous transmission of DMA data into asynchronous transmission | |
| KR100523076B1 (en) | Wireless broadcasting terminal apparatus and associated communication system and control methodologies | |
| RU2009131048A (en) | SWITCHING STRUCTURE FOR CONTROL CHANNELS |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030917 Termination date: 20190203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |