CN103178924B - A kind of data transmission method and terminal - Google Patents
A kind of data transmission method and terminal Download PDFInfo
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- CN103178924B CN103178924B CN201110430458.7A CN201110430458A CN103178924B CN 103178924 B CN103178924 B CN 103178924B CN 201110430458 A CN201110430458 A CN 201110430458A CN 103178924 B CN103178924 B CN 103178924B
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Abstract
The present invention a kind of data transmission method and terminal are disclosed, this method is included in carry out data transmission before, detect transmission channel to be used and whether there is signal interference；If presence signal is disturbed, abandon carrying out data transmission using the channel；If signal interference is not present, carried out data transmission using the channel.The present invention is by above technical scheme, the problem of solving multiple equipment in the prior art and tie up same transmission channel at the same time, and cause signal interference, even result in data transmission fails.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of data transmission method and terminal.
Background technology
With the development of wireless communication technique, as bluetooth (Bluetooth), ZigBee, Wireless USB (WirelessUSB),
The development of Wi-Fi, radio frequency, magnetic communication technology, the equipment that the employing wireless communication technology carries out data transmission is more and more, easily deposits
Same transmission channel is tied up at the same time in multiple equipment, and causes signal interference, even results in data transmission fails.
The content of the invention
The present invention provides a kind of data transmission method and terminal, solves multiple equipment in the prior art and ties up same biography at the same time
Defeated channel, and the problem of cause signal interference, even result in data transmission fails.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of data transmission method, including：
Before carrying out data transmission, detect transmission channel to be used and whether there is signal interference；
If presence signal is disturbed, abandon carrying out data transmission using the channel；
If signal interference is not present, carried out data transmission using the channel.
In an embodiment of the present invention, the method for detecting transmission channel to be used with the presence or absence of signal interference includes：
Detect the current signal strength of the channel；
By the signal strength detected compared with a threshold value；
If the signal strength detected exceedes the threshold value, it is judged as the channel presence signal interference；Otherwise, sentence
Break and signal interference is not present for the channel.
In an embodiment of the present invention, transmission channel to be used is detected with the presence or absence of before signal interference, is further included：
Data to be transmitted is divided into multiple data packets by initiator；
Initiator consults the transmission frequency point of the multiple data packet with recipient；
Before initiator is transmitted each data packet, it whether there is signal interference into the frequency point channel for detecting to be used
The step of.
In an embodiment of the present invention, initiator consults the method bag of the transmission frequency point of the multiple data packet with recipient
Include：
Initiate direction recipient and send synchronization request, the synchronization request carries the factor for calculating frequency point sequence；
Initiator is utilized respectively the factor with recipient and identical frequency point sequence is calculated；
The transmission frequency point of initiator and recipient using the frequency point sequence as the multiple data packet.
In an embodiment of the present invention, if presence signal is disturbed, abandon carrying out using the frequency point channel to be used
Data packet transmit, and reselect transmission frequency point and/or transmission time slot the data packet is transmitted again.
A kind of data transmission terminal includes detection module and data transmission module, wherein, detection module is used for into line number
Before transmission, detect transmission channel to be used and whether there is signal interference；Data transmission module is used to examine in detection module
When measuring presence signal interference, abandon carrying out data transmission using the channel；Detect that there is no signal to do in detection module
When disturbing, carried out data transmission using the channel.
In an embodiment of the present invention, detection module is used to detect the current signal strength of the channel；By what is detected
Signal strength is compared with a threshold value；If the signal strength detected exceedes the threshold value, it is judged as that the channel exists
Signal interference；Otherwise, it is judged as that signal interference is not present in the channel.
In an embodiment of the present invention, data transmission terminal further includes data processing module, and data processing module is used for will
Data to be transmitted is divided into multiple data packets；And consult the transmission frequency point of the multiple data packet with data receiver；Detection module
It whether there is signal interference for before being transmitted to each data packet, detecting frequency point channel to be used.
In an embodiment of the present invention, data transmission module is used to, when detection module detects presence signal interference, put
Abandon and carry out data packet transmission using the frequency point channel to be used, and reselect transmission frequency point and/or transmission time slot to this
Data packet is transmitted again.
The present invention provides a kind of data transmission method and terminal, before carrying out data transmission, detects transmission to be used
Channel whether there is signal interference；If presence signal is disturbed, abandon carrying out data transmission using the channel；If signal is not present
Interference, then carried out data transmission using the channel, can effectively avoid multiple equipment and tie up same channel at the same time, and causes signal to do
The problem of disturbing, even resulting in data transmission fails.
Brief description of the drawings
Fig. 1 is the flow chart of one embodiment of the invention data transmission method；
Fig. 2 is the schematic diagram of one embodiment of the invention data transmission terminal.
Embodiment
Below by taking two terminals are carried out data transmission by technology for radio frequency as an example, initiator is first by data to be transmitted point
Into multiple data packets { P0, P1, P2 ... Pn }, as shown in Figure 1, the flow chart for one embodiment of the invention data transmission method：
S101, initiate direction recipient transmission synchronization request, and synchronization request carries the factor for calculating frequency point sequence.
Whether S102, initiator receive the synchronous response message of recipient's feedback, if so, then progress step S103, no
Then, return to step S101.
Identical frequency point sequence is calculated in the factor that S103, initiator and recipient are utilized respectively the frequency point sequence, frequency
Point sequence includes frequency point { F0, F1, F2 ... Fn }, can set each frequency point and account for a time slot { T0, T1, T2 ... Tn }, often
A one data packet of slot transmission.
S104, select data packet waiting for transmission.
S105, before being transmitted the data packet, select to transmit data packet frequency point to be used from frequency point sequence.
S106, the current signal strength to frequency point channel to be used are detected.
S107, by the signal strength detected compared with a threshold value, judge the signal that detects whether intensity exceed should
Threshold value, if so, then return to step S105, data packet frequency point to be used is transmitted in selection from frequency point sequence again, otherwise,
Carry out step S108.
S108, using the frequency point channel be transferred to recipient by the data packet.
S109, judge whether to receive the acknowledgement character response of recipient, if receiving, return to step S104, is selected next to be passed
Defeated data packet, if not receiving, return to step S105, data packet frequency to be used is transmitted in selection from frequency point sequence again
Point.
Present invention additionally comprises a kind of data transmission terminal, which includes detection module and data transfer mould
Block, wherein, detection module is used for before carrying out data transmission, and detects transmission channel to be used and whether there is signal interference；
Data transmission module is used to, when detection module detects presence signal interference, abandon carrying out data transmission using the channel；
When detection module detects to be not present signal interference, carried out data transmission using the channel.
Fig. 2 is the schematic diagram of one embodiment of the invention data transmission terminal, is please referred to Fig.2：The data transmission terminal includes
Data processing module 201, detection module 202 and data transmission module 203；
Data processing module 201 is used to data to be transmitted being divided into multiple data packets；And with data receiver consult described in
The transmission frequency point of multiple data packets, can be specifically：
Synchronization request is sent to data receiver, which carries the factor for calculating frequency point sequence；
The factor is utilized respectively with recipient, and identical frequency point sequence is calculated；
With transmission frequency point of the recipient using the frequency point sequence as the plurality of data packet.
Before detection module 202 is used to be transmitted each data packet, frequency point channel to be used is detected with the presence or absence of letter
Number interference, can be specifically：
Detect the current signal strength of the channel；
By the signal strength detected compared with a threshold value；
If the signal strength detected exceedes the threshold value, it is judged as that the channel presence signal is disturbed；Otherwise, it is judged as
Signal interference is not present in the channel.
When data transmission module 203 detects presence signal interference for detection module 202, abandon to be used using this
Frequency point channel carries out data packet transmission, and selection transmits frequency point and/or transmission time slot to the data packet from frequency point sequence again
Transmitted again；When detecting to be not present signal interference for detection module 202, carried out using the frequency point channel to be used
Data transfer.
Radio communication, magnetic communication etc. are present invention can be suitably applied to, transmission channel of the invention includes but is not limited to radio frequency and leads to
Believe channel, magnetic communication channel, radio frequency communications channels include but is not limited to 2.4G radio frequency communications channels.Present invention detection is to be used
Transmission channel include with the presence or absence of the method for signal interference it is a variety of, including but not limited to shown in above example：Detection should
The current signal strength of channel, by the signal strength detected compared with a threshold value, is somebody's turn to do if the signal strength detected exceedes
Threshold value, then be judged as that the channel presence signal is disturbed；Otherwise, it is judged as that signal interference is not present in the channel.The present invention provides
Data transmission method and terminal, before carrying out data transmission, detect transmission channel to be used and whether there is signal interference；
If presence signal is disturbed, abandon carrying out data transmission using the channel；If signal interference is not present, carried out using the channel
Data transfer, can effectively avoid multiple equipment and ties up same channel at the same time, and cause signal interference, even result in data transfer mistake
The problem of losing.
Above content is to combine specific embodiment further description made for the present invention, it is impossible to assert this hair
Bright specific implementation is confined to these explanations.For general technical staff of the technical field of the invention, do not taking off
On the premise of from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the protection of the present invention
Scope.
Claims (6)
- A kind of 1. data transmission method, it is characterised in that including：Data to be transmitted is divided into multiple data packets by initiator；Initiate direction recipient and send synchronization request, the synchronization request carries the factor for calculating frequency point sequence；Initiator is utilized respectively the factor with recipient and identical frequency point sequence is calculated；The transmission frequency point of initiator and recipient using the frequency point sequence as the multiple data packet；Detect the corresponding channel of frequency point to be used and whether there is signal interference；If presence signal is disturbed, abandon carrying out data transmission using the channel, and reselect from the frequency point sequence Frequency point to be used and/or time slot to be used are transmitted the data packet；If signal interference is not present, carried out data transmission using the channel；If it is determined that the recipient does not receive data packet, frequency point to be used is reselected from the frequency point sequence to described Data packet is transmitted again.
- 2. the method as described in claim 1, it is characterised in that detect transmission channel to be used with the presence or absence of signal interference Method includes：Detect the current signal strength of the channel；By the signal strength detected compared with a threshold value；If the signal strength detected exceedes the threshold value, it is judged as the channel presence signal interference；Otherwise, it is judged as Signal interference is not present in the channel.
- 3. method as claimed in claim 1 or 2, it is characterised in that the channel is radio frequency communications channels or magnetic communication channel.
- 4. method as claimed in claim 3, it is characterised in that the channel is 2.4G radio frequency communications channels.
- A kind of 5. data transmission terminal, it is characterised in that including data processing module, detection module and data transmission module, its In,The data processing module is used to data to be transmitted being divided into multiple data packets, and synchronization request is sent to recipient, described Synchronization request carries the factor for calculating frequency point sequence；And frequency point sequence is calculated using the factor of the calculating frequency point sequence, by institute State transmission frequency point of the frequency point sequence as the multiple data packet；The detection module is used for before carrying out data transmission, and detects transmission channel to be used and whether there is signal interference；The data transmission module be used for the detection module detect presence signal interference when, abandon using the channel into Row data transfer, and frequency point to be used and/or time slot to be used are reselected to the data packet from the frequency point sequence It is transmitted；When the detection module detects to be not present signal interference, carried out data transmission using the channel；And When determining that the recipient does not receive data packet, frequency point to be used is reselected from the frequency point sequence to the data Bag is transmitted again.
- 6. data transmission terminal as claimed in claim 5, it is characterised in that the detection module is worked as detecting the channel Preceding signal strength；By the signal strength detected compared with a threshold value；If the signal strength detected exceedes the threshold value, it is judged as the channel presence signal interference；Otherwise, it is judged as Signal interference is not present in the channel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110430458.7A CN103178924B (en) | 2011-12-20 | 2011-12-20 | A kind of data transmission method and terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110430458.7A CN103178924B (en) | 2011-12-20 | 2011-12-20 | A kind of data transmission method and terminal |
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| CN103178924A CN103178924A (en) | 2013-06-26 |
| CN103178924B true CN103178924B (en) | 2018-04-17 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106301491A (en) * | 2015-05-18 | 2017-01-04 | 北京富华胜科技中心 | A kind of data transmission method based on multiple-input and multiple-output |
| CN104821995B (en) * | 2015-05-27 | 2017-06-06 | 广东欧珀移动通信有限公司 | A kind of data transfer management method and device |
| CN106454944A (en) * | 2016-09-20 | 2017-02-22 | 乐视控股（北京）有限公司 | Data transmission method, apparatus and terminal |
| CN106851844B (en) * | 2017-03-20 | 2020-06-30 | 北京小鸟看看科技有限公司 | Wireless data transmission method, equipment and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101068435A (en) * | 2007-03-23 | 2007-11-07 | 华为技术有限公司 | Method for conquering back interference and base station controller |
| CN101119133A (en) * | 2007-09-07 | 2008-02-06 | 倪郁青 | 2.4GHz frequency hopping technique based one-to-many fast synchronization method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4327832B2 (en) * | 2006-09-15 | 2009-09-09 | 株式会社東芝 | Communication apparatus and program |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101068435A (en) * | 2007-03-23 | 2007-11-07 | 华为技术有限公司 | Method for conquering back interference and base station controller |
| CN101119133A (en) * | 2007-09-07 | 2008-02-06 | 倪郁青 | 2.4GHz frequency hopping technique based one-to-many fast synchronization method |
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