CN103747479B - Wireless communications method and Wireless Telecom Equipment - Google Patents
Wireless communications method and Wireless Telecom Equipment Download PDFInfo
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- CN103747479B CN103747479B CN201310745213.2A CN201310745213A CN103747479B CN 103747479 B CN103747479 B CN 103747479B CN 201310745213 A CN201310745213 A CN 201310745213A CN 103747479 B CN103747479 B CN 103747479B
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Abstract
The invention provides a kind of wireless communications method, including：Send method, apparatus and a transmission chip is chosen in multiple radio frequency chips of configuration, for sending message；Record the message is sent completely the time；In using the preset time period for being sent completely the time as start time point, if any radio frequency chip in the multiple radio frequency chip receives confirmation, confirm that the message is sent successfully.The invention also provides a kind of Wireless Telecom Equipment.By technical scheme, the success rate that the message in wireless communication procedure is sent can be improved, the repetition for reducing message is sent, and contributes to the handling capacity of lifting system.
Description
Technical field
The present invention relates to wireless communication technology field, in particular to a kind of wireless communications method and a kind of channel radio
Believe equipment.
Background technology
WLAN（WLAN, Wireless Local Area Networks）It is computer network and radio communication skill
The product that art is combined.It utilizes radio-frequency technique (RF), substitutes old-fashioned twisted-pair feeder to form LAN, there is provided traditional wire office
The institute of domain net is functional.
In foundation structure type wlan network, there is the wireless terminal (STA, Station) of wireless interface card wirelessly to connect
Access point（AP, Access Point）Centered on, connect by wireless bridge, wireless access gateway, Radio Access Controller and wirelessly
Enter server etc. by WLAN and wired network network connection, the WLAN access network of Various Complex can be set up
Network, realize the access of Wireless Mobile Office.Fig. 1 shows a kind of schematic diagram of specific WLAN, by AP and STA1,
STA2 and STA3 carries out radio communication.
In cable network, it is assumed that it is rational that other side, which will necessarily receive transmitted frame,；But Radio Link is quite different, its
Transmission will by noise with interference be influenceed, therefore WLAN use positive acknowledgment (positive acknowledgement,
ACK) mechanism judges whether transmitted frame is successfully received.Specifically, AP to the STA messages sent, it is necessary to AP receive
To STA return ACK when, just can confirm that and send successfully；Similarly, STA be sent to AP message it is same.
For example in the WLAN communication systems shown in Fig. 2, AP sides collectively form one by x radio frequency chip and virtual patrolled
Chip is collected, and controls it specifically to receive and dispatch process by control chip., it is necessary to enter from x radio frequency chip when sending message every time
Row selection, it is assumed that have selected chip 1；After chip 1 completes message transmission, the ACK of STA returns can be received.In the related art,
Could be that message is sent successfully as long as chip 1 oneself receives ACK；Even if other chips receive and chip 1 does not receive
Arrive, i.e. STA has actually been successfully received message, and chip 1 is also judged to sending failure, and resends.
Simultaneously as the receiving sensitivity of each chip is its own adjustment so that when chip in order to avoid being transmitted across
When journey is influenceed by environment and reduces sensitivity, just it is likely to that ACK can not be received；And after ACK can not being received, in order to avoid
Continue to send failure, chip can also reduce the physical rate of message transmission, cause to take for a long time and eat dishes without rice or wine, reduce system throughput
Amount.
Therefore, the success rate of message transmission, lifting system handling capacity how are improved, the technology for turning into urgently to be resolved hurrily at present is asked
Topic.
The content of the invention
The present invention is based on above mentioned problem, it is proposed that a kind of new wireless communication technology, can improve radio communication mistake
The success rate that message in journey is sent, the repetition for reducing message are sent, and contribute to the handling capacity of lifting system.
In view of this, the present invention proposes a kind of wireless communications method, including：Send multiple radio frequencies of the method, apparatus in configuration
A transmission chip is chosen in chip, for sending message；Record the message is sent completely the time；With the transmission
Deadline is in the preset time period of start time point, if any radio frequency chip in the multiple radio frequency chip receives really
Recognize, then confirm that the message is sent successfully.
In the technical scheme, after the transmission of message is completed, no matter receiving confirmation（That is ACK）Be which radio frequency
Chip, for example be the chip or other chips for sending the message, as long as received in preset time period, can be true
Recognize the message to send successfully, without resending message, avoid occupancy from eating dishes without rice or wine overlong time.Simultaneously as improve report
The success rate of text so that the physical rate of itself need not be adjusted by sending the radio frequency chip of the message, help to ensure that the hair of message
Transmission rate, so as to contribute to the handling capacity of lifting system.
Certainly, it is necessary to which explanation, technical scheme should share same channel corresponding to multiple radio frequency chips
Situation so that multiple message will not occur within the same time and send event, avoid confirming corresponding to the ACK that receives
Message.
In the above-mentioned technical solutions, it is preferable that be sent completely preset time period of the time as start time point using described
It is interior, if other any radio frequency chips in the multiple radio frequency chip in addition to the transmission chip receive the confirmation,
Confirm that the message is sent successfully.
In the technical scheme, highlight when other any radio frequency chips outside transmission chip receive ACK, equally
It can be confirmed to be and send successfully；Message is voluntarily sent with reference to transmission chip and receives ACK transmission confirmation process so that no matter
When which radio frequency chip receives the ACK of return, sent successfully also regarded as message, so as to be favorably improved the hair of message
Send success rate, the data throughout in lifting region.
In any of the above-described technical scheme, it is preferable that recording the process for being sent completely the time of the message includes：Obtain
The message starts the transmission time；Obtained according to the transmission rate of the message and length computation required for sending the message
Time span；Start to send the time according to described and be sent completely the time described in the required time span calculates.
In the technical scheme, after radio frequency chip competition to channel, confirm to start the time for sending message（Start to send out
Send the time）, and the Duration based on the message（Period）It is determined that the time span sent needed for operation is performed, so as to true
It is fixed final to be sent completely the time.Wherein, specifically can be by the modulated process to message, obtaining its message length and selection
Transmission rate, so as to obtain the business of Duration concrete numerical value, i.e. message length and transmission rate.
It is, of course, also possible to by other various ways, it can be equally used for acquisition and be sent completely the time, for example supervise
Depending on the transmission process to message, and at the time of packet is completed to be sent, confirm as being sent completely the time.
In any of the above-described technical scheme, it is preferable that also include：According to the transmission chip and the multiple radio frequency chip
In main radio frequency chip between time difference, be sent completely the time to described and be modified；And according to other described any radio frequencies
Time difference between chip and the master chip, the time for receiving the confirmation is modified.
In the technical scheme, because each chip has the time of itself, but set due to different chips starting when
Between may be different, and error may also be produced after operation after a while, so as to cause to be determined according to the time finally
Corresponding to ACK during message, it may lead to not identify and confirm exactly, in some instances it may even be possible to cause erroneous judgement.Therefore, by will be every
The time of individual radio frequency chip is compared with the time of main radio frequency chip and corrects, and can avoid erroneous judgement caused by the time difference,
The accuracy for contributing to lifting to judge.Wherein, main radio frequency chip can be default any radio frequency chip.
In any of the above-described technical scheme, it is preferable that also include：The confirmation that other described any radio frequency chips are received
Be demodulated, and according to demodulate come physical transmission rate, it is determined that it is corresponding permission time delay length；And permit described
Perhaps time delay length is as the preset time period, to determine message corresponding to the confirmation being currently received.
In the technical scheme, because of situations such as the distance between the receiving-transmitting sides of message distance, signal condition difference, all
ACK transmission speed may be caused to receive influence, thus pass through physical transfer speed corresponding to each ACK is demodulated and determined
Rate, corresponding preset time period can be obtained to the message sent every time, the ACK for judging and receiving is really right
The message answered, so as to be favorably improved the accuracy of judgement.
Certainly, it is relatively fixed for the position of the receiving-transmitting sides of such as message（I.e. transmission rate is balanced）Or need not be very high
In the case of accuracy, it is clear that regular time section can also be set to realize the matching between ACK and message, without every
It is secondary that processing is all demodulated to ACK, the performance requirement to equipment is reduced, helps speed up processing speed.
In any of the above-described technical scheme, it is preferable that at least one chip in the multiple radio frequency chip is low reception
The radio frequency chip of sensitivity, its receiving sensitivity are less than or equal to default low receiving sensitivity threshold value；And the multiple penetrate
At least one chip in frequency chip is the radio frequency chip of high receiving sensitivity, and its receiving sensitivity is more than or equal to default height
Receiving sensitivity threshold value.
In the technical scheme, because the present invention is in the transmission square chip of message and inconsistent ACK reception square chip,
Transmission situation that equally can be to message confirms, thus by setting the chip, at least of at least one low receiving sensitivity
The chip of one high receiving sensitivity, it can solve the problem that and " external interference is not easily susceptible to during low receiving sensitivity but is not easy to receive
ACK, even and if ACK " contradiction easily can be also received during high receiving sensitivity by external interference but dtr signal, make
Obtain under any time, can ensure that the reception that the success of message is sent with ACK confirms, contribute to the message of lifting system to send
Success rate and the stability of a system.
In a kind of more specific embodiment, at least one chip in the multiple radio frequency chip is pre-configured
The radio frequency chip of the low receiving sensitivity；And at least one chip in the multiple radio frequency chip is pre-configured described
The radio frequency chip of high receiving sensitivity.
It is pre-configured by being carried out to the hardware device of radio frequency chip so that different radio frequency chips in the technical scheme
Low receiving sensitivity or high receiving sensitivity corresponding to being cured as, so as in application process, avoid manually or automatically adjusting
Maloperation caused by whole, it is ensured that user maintains preferable usage experience all the time.
As another more specific embodiment, in addition to：According to the adjust instruction received, penetrated the multiple
At least one chip in frequency chip is adjusted to the radio frequency chip of the low receiving sensitivity, and by the multiple radio frequency chip
In at least one chip be adjusted to the radio frequency chip of the high receiving sensitivity.
In the technical scheme, Mobile state adjustment can be entered to the sensitivity of each chip, enables to the sensitive of chip
Degree is more conformed in actual conditions, so that user obtains optimal usage experience.
In any of the above-described technical scheme, it is preferable that also include：Count each radio frequency core in the multiple radio frequency chip
Message of the piece in nearest preset times sends success rate, to adjust the message transmitting spped rate of corresponding radio frequency chip；Wherein,
The message transmitting spped rate sends success rate with the message and is proportionate.
In the technical scheme, if under current transmission rate, message has higher transmission success rate, then can be with
Properly increase transmission rate；If under current transmission rate, the transmission success rate of message is relatively low, then can suitably reduce hair
Transmission rate.Pass through the regulation to transmission rate, enabling corresponding transmission rate is tested, it is ensured that can either use compared with
High speed sends message and improves the handling capacity of system, and and can enough avoids being influenceed to send success rate by larger interference.
The invention also provides a kind of Wireless Telecom Equipment, is configured with multiple radio frequency chips, the Wireless Telecom Equipment bag
Include：Packet sending unit, sent out for choosing a transmission chip in the multiple radio frequency chip, and using the transmission chip
Deliver newspaper text；Time recording unit, the time is sent completely for record the message；Results verification unit, for described
It is sent completely in the preset time period that the time is start time point, if any radio frequency chip in the multiple radio frequency chip receives
To confirmation, then confirm that the message is sent successfully.
In the technical scheme, after the transmission of message is completed, no matter receiving confirmation（That is ACK）Be which radio frequency
Chip, for example be the chip or other chips for sending the message, as long as received in preset time period, can be true
Recognize the message to send successfully, without resending message, avoid occupancy from eating dishes without rice or wine overlong time.Simultaneously as improve report
The success rate of text so that the physical rate of itself need not be adjusted by sending the radio frequency chip of the message, help to ensure that the hair of message
Transmission rate, so as to contribute to the handling capacity of lifting system.
Certainly, it is necessary to which explanation, technical scheme should share same channel corresponding to multiple radio frequency chips
Situation so that multiple message will not occur within the same time and send event, avoid confirming corresponding to the ACK that receives
Message.
In the above-mentioned technical solutions, it is preferable that the results verification unit is specifically used for：The time is being sent completely with described
For in the preset time period of start time point, if any other in the multiple radio frequency chip in addition to the transmission chip are penetrated
Frequency chip receives the confirmation, then confirms that the message is sent successfully.
In the technical scheme, highlight when other any radio frequency chips outside transmission chip receive ACK, equally
It can be confirmed to be and send successfully；Message is voluntarily sent with reference to transmission chip and receives ACK transmission confirmation process so that no matter
When which radio frequency chip receives the ACK of return, sent successfully also regarded as message, so as to be favorably improved the hair of message
Send success rate, the data throughout in lifting region.
In any of the above-described technical scheme, it is preferable that the time recording unit is used for：The message is obtained to start to send out
Send the time, and transmission rate according to the message and length computation obtain the time span required for sending the message, with
And start to send the time according to described and be sent completely the time described in the required time span calculates.
In the technical scheme, after radio frequency chip competition to channel, confirm to start the time for sending message（Start to send out
Send the time）, and the Duration based on the message（Period）It is determined that the time span sent needed for operation is performed, so as to true
It is fixed final to be sent completely the time.Wherein, specifically can be by the modulated process to message, obtaining its message length and selection
Transmission rate, so as to obtain the business of Duration concrete numerical value, i.e. message length and transmission rate.
It is, of course, also possible to by other various ways, it can be equally used for acquisition and be sent completely the time, for example supervise
Depending on the transmission process to message, and at the time of packet is completed to be sent, confirm as being sent completely the time.
In any of the above-described technical scheme, it is preferable that also include：Time complexity curve unit, for according to the transmission chip
With the time difference between the main radio frequency chip in the multiple radio frequency chip, it is sent completely the time to described and is modified, Yi Jigen
According to the time difference between other described any radio frequency chips and the main radio frequency chip, the time for receiving the confirmation is repaiied
Just.
In the technical scheme, because each chip has the time of itself, but set due to different chips starting when
Between may be different, and error may also be produced after operation after a while, so as to cause to be determined according to the time finally
Corresponding to ACK during message, it may lead to not identify and confirm exactly, in some instances it may even be possible to cause erroneous judgement.Therefore, by will be every
The time of individual radio frequency chip is compared with the time of main radio frequency chip and corrects, and can avoid erroneous judgement caused by the time difference,
The accuracy for contributing to lifting to judge.Wherein, main radio frequency chip can be default any radio frequency chip.
In any of the above-described technical scheme, it is preferable that also include：Demodulating unit is confirmed, for being penetrated to any other
The confirmation that frequency chip receives is demodulated, and according to demodulate come physical transmission rate, it is determined that it is corresponding allow delay when
Between length；Wherein, the results verification unit is using the permission time delay length as the preset time period, to determine to work as
Before message corresponding to the confirmation that receives.
In the technical scheme, because of situations such as the distance between the receiving-transmitting sides of message distance, signal condition difference, all
ACK transmission speed may be caused to receive influence, thus pass through physical transfer speed corresponding to each ACK is demodulated and determined
Rate, corresponding preset time period can be obtained to the message sent every time, the ACK for judging and receiving is really right
The message answered, so as to be favorably improved the accuracy of judgement.
Certainly, it is relatively fixed for the position of the receiving-transmitting sides of such as message（I.e. transmission rate is balanced）Or need not be very high
In the case of accuracy, it is clear that regular time section can also be set to realize the matching between ACK and message, without every
It is secondary that processing is all demodulated to ACK, the performance requirement to equipment is reduced, helps speed up processing speed.
In any of the above-described technical scheme, it is preferable that at least one chip in the multiple radio frequency chip is low reception
The radio frequency chip of sensitivity, its receiving sensitivity are less than or equal to default low receiving sensitivity threshold value；And the multiple penetrate
At least one chip in frequency chip is the radio frequency chip of high receiving sensitivity, and its receiving sensitivity is more than or equal to default height
Receiving sensitivity threshold value.
In the technical scheme, because the present invention is in the transmission square chip of message and inconsistent ACK reception square chip,
Transmission situation that equally can be to message confirms, thus by setting the chip, at least of at least one low receiving sensitivity
The chip of one high receiving sensitivity, it can solve the problem that and " external interference is not easily susceptible to during low receiving sensitivity but is not easy to receive
ACK, even and if ACK " contradiction easily can be also received during high receiving sensitivity by external interference but dtr signal, make
Obtain under any time, can ensure that the reception that the success of message is sent with ACK confirms, contribute to the message of lifting system to send
Success rate and the stability of a system.
As a kind of more preferred embodiment, at least one chip in the multiple radio frequency chip is pre-configured
The radio frequency chip of the low receiving sensitivity；And at least one chip in the multiple radio frequency chip is pre-configured described
The radio frequency chip of high receiving sensitivity.
It is pre-configured by being carried out to the hardware device of radio frequency chip so that different radio frequency chips in the technical scheme
Low receiving sensitivity or high receiving sensitivity corresponding to being cured as, so as in application process, avoid manually or automatically adjusting
Maloperation caused by whole, it is ensured that user maintains preferable usage experience all the time.
As a kind of more preferred embodiment, in addition to：Sensitivity setting unit, for according to the adjustment received
Instruction, at least one chip in the multiple radio frequency chip is adjusted to the radio frequency chip of the low receiving sensitivity, and
At least one chip in the multiple radio frequency chip is adjusted to the radio frequency chip of the high receiving sensitivity.
In the technical scheme, Mobile state adjustment can be entered to the sensitivity of each chip, enables to the sensitive of chip
Degree is more conformed in actual conditions, so that user obtains optimal usage experience.
In any of the above-described technical scheme, it is preferable that also include：Successful rate statistics unit, penetrated for counting the multiple
Message of each radio frequency chip in nearest preset times in frequency chip sends success rate；Rate adjustment unit, for root
Send the message transmitting spped rate that success rate adjusts corresponding radio frequency chip according to the message, wherein, the message transmitting spped rate with
The message sends success rate and is proportionate.
In the technical scheme, if under current transmission rate, message has higher transmission success rate, then can be with
Properly increase transmission rate；If under current transmission rate, the transmission success rate of message is relatively low, then can suitably reduce hair
Transmission rate.Pass through the regulation to transmission rate, enabling corresponding transmission rate is tested, it is ensured that can either use compared with
High speed sends message and improves the handling capacity of system, and and can enough avoids being influenceed to send success rate by larger interference.
By above technical scheme, the success rate that the message in wireless communication procedure is sent can be improved, reduces message
Repeat to send, contribute to the handling capacity of lifting system.
Brief description of the drawings
Fig. 1 shows the structural representation of the WLAN in correlation technique；
Fig. 2 shows the hardware architecture diagram of the AP sides in the WLAN communication systems in correlation technique；
Fig. 3 shows the schematic flow diagram of wireless communications method according to an embodiment of the invention；
Fig. 4 shows the schematic block diagram of Wireless Telecom Equipment according to an embodiment of the invention；
Fig. 5 shows the high-level schematic functional block diagram of the equipment of transmission message according to an embodiment of the invention；
Fig. 6 is that the schematic flow sheet that message is sent completely the time is calculated in the embodiment shown in Fig. 5；
Fig. 7 is to judge whether message sends successful schematic flow sheet in the embodiment shown in Fig. 5；
The schematic flow sheet of time differences of the Fig. 8 between synchronizing chip in the embodiment shown in Fig. 5.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be different from other modes described here using other to implement, therefore, the present invention is not limited to following public specific real
Apply the limitation of example.
Fig. 3 shows the schematic flow diagram of wireless communications method according to an embodiment of the invention.
As shown in figure 3, wireless communications method according to an embodiment of the invention, including：Step 302, sender sets
It is standby that a transmission chip is chosen in multiple radio frequency chips of configuration, for sending message；Step 304, the message is recorded
Be sent completely the time；Step 306, in using the preset time period for being sent completely the time as start time point, if described
Any radio frequency chip in multiple radio frequency chips receives confirmation, then confirms that the message is sent successfully.
In the technical scheme, after the transmission of message is completed, no matter receiving confirmation（That is ACK）Be which radio frequency
Chip, for example be the chip or other chips for sending the message, as long as received in preset time period, can be true
Recognize the message to send successfully, without resending message, avoid occupancy from eating dishes without rice or wine overlong time.Simultaneously as improve report
The success rate of text so that the physical rate of itself need not be adjusted by sending the radio frequency chip of the message, help to ensure that the hair of message
Transmission rate, so as to contribute to the handling capacity of lifting system.
Certainly, it is necessary to which explanation, technical scheme should share same channel corresponding to multiple radio frequency chips
Situation so that multiple message will not occur within the same time and send event, avoid confirming corresponding to the ACK that receives
Message.
In the above-mentioned technical solutions, it is preferable that be sent completely preset time period of the time as start time point using described
It is interior, if other any radio frequency chips in the multiple radio frequency chip in addition to the transmission chip receive the confirmation,
Confirm that the message is sent successfully.
In the technical scheme, highlight when other any radio frequency chips outside transmission chip receive ACK, equally
It can be confirmed to be and send successfully；Message is voluntarily sent with reference to transmission chip and receives ACK transmission confirmation process so that no matter
When which radio frequency chip receives the ACK of return, sent successfully also regarded as message, so as to be favorably improved the hair of message
Send success rate, the data throughout in lifting region.
In any of the above-described technical scheme, it is preferable that recording the process for being sent completely the time of the message includes：Obtain
The message starts the transmission time；Obtained according to the transmission rate of the message and length computation required for sending the message
Time span；Start to send the time according to described and be sent completely the time described in the required time span calculates.
In the technical scheme, after radio frequency chip competition to channel, confirm to start the time for sending message（Start to send out
Send the time）, and the Duration based on the message（Period）It is determined that the time span sent needed for operation is performed, so as to true
It is fixed final to be sent completely the time.Wherein, specifically can be by the modulated process to message, obtaining its message length and selection
Transmission rate, so as to obtain the business of Duration concrete numerical value, i.e. message length and transmission rate.
It is, of course, also possible to by other various ways, it can be equally used for acquisition and be sent completely the time, for example supervise
Depending on the transmission process to message, and at the time of packet is completed to be sent, confirm as being sent completely the time.
In any of the above-described technical scheme, it is preferable that also include：According to the transmission chip and the multiple radio frequency chip
In main radio frequency chip between time difference, be sent completely the time to described and be modified；And penetrating according to the reception confirmation
Time difference between frequency chip and the master chip, the time for receiving the confirmation is modified.
In the technical scheme, because each chip has the time of itself, but set due to different chips starting when
Between may be different, and error may also be produced after operation after a while, so as to cause to be determined according to the time finally
Corresponding to ACK during message, it may lead to not identify and confirm exactly, in some instances it may even be possible to cause erroneous judgement.Therefore, by will be every
The time of individual radio frequency chip is compared with the time of main radio frequency chip and corrects, and can avoid erroneous judgement caused by the time difference,
The accuracy for contributing to lifting to judge.Wherein, main radio frequency chip can be default any radio frequency chip.
In any of the above-described technical scheme, it is preferable that also include：To any radio frequency chip in the multiple radio frequency chip
The confirmation received is demodulated, and according to demodulate come physical transmission rate, it is determined that it is corresponding permission time delay length；
And using the permission time delay length as the preset time period, to determine report corresponding to the confirmation being currently received
Text.
In the technical scheme, because of situations such as the distance between the receiving-transmitting sides of message distance, signal condition difference, all
ACK transmission speed may be caused to receive influence, thus pass through physical transfer speed corresponding to each ACK is demodulated and determined
Rate, corresponding preset time period can be obtained to the message sent every time, the ACK for judging and receiving is really right
The message answered, so as to be favorably improved the accuracy of judgement.
Certainly, it is relatively fixed for the position of the receiving-transmitting sides of such as message（I.e. transmission rate is balanced）Or need not be very high
In the case of accuracy, it is clear that regular time section can also be set to realize the matching between ACK and message, without every
It is secondary that processing is all demodulated to ACK, the performance requirement to equipment is reduced, helps speed up processing speed.
In any of the above-described technical scheme, it is preferable that at least one chip in the multiple radio frequency chip is low reception
The radio frequency chip of sensitivity, its receiving sensitivity are less than or equal to default low receiving sensitivity threshold value；And the multiple penetrate
At least one chip in frequency chip is the radio frequency chip of high receiving sensitivity, and its receiving sensitivity is more than or equal to default height
Receiving sensitivity threshold value.
In the technical scheme, because the present invention is in the transmission square chip of message and inconsistent ACK reception square chip,
Transmission situation that equally can be to message confirms, thus by setting the chip, at least of at least one low receiving sensitivity
The chip of one high receiving sensitivity, it can solve the problem that and " external interference is not easily susceptible to during low receiving sensitivity but is not easy to receive
ACK, even and if ACK " contradiction easily can be also received during high receiving sensitivity by external interference but dtr signal, make
Obtain under any time, can ensure that the reception that the success of message is sent with ACK confirms, contribute to the message of lifting system to send
Success rate and the stability of a system.
In a kind of more specific embodiment, at least one chip in the multiple radio frequency chip is pre-configured
The radio frequency chip of the low receiving sensitivity；And at least one chip in the multiple radio frequency chip is pre-configured described
The radio frequency chip of high receiving sensitivity.
It is pre-configured by being carried out to the hardware device of radio frequency chip so that different radio frequency chips in the technical scheme
Low receiving sensitivity or high receiving sensitivity corresponding to being cured as, so as in application process, avoid manually or automatically adjusting
Maloperation caused by whole, it is ensured that user maintains preferable usage experience all the time.
As another more specific embodiment, in addition to：According to the adjust instruction received, penetrated the multiple
At least one chip in frequency chip is adjusted to the radio frequency chip of the low receiving sensitivity, and by the multiple radio frequency chip
In at least one chip be adjusted to the radio frequency chip of the high receiving sensitivity.
In the technical scheme, Mobile state adjustment can be entered to the sensitivity of each chip, enables to the sensitive of chip
Degree is more conformed in actual conditions, so that user obtains optimal usage experience.
In any of the above-described technical scheme, it is preferable that also include：Count each radio frequency core in the multiple radio frequency chip
Message of the piece in nearest preset times sends success rate, to adjust the message transmitting spped rate of corresponding radio frequency chip；Wherein,
The message transmitting spped rate sends success rate with the message and is proportionate.
In the technical scheme, if under current transmission rate, message has higher transmission success rate, then can be with
Properly increase transmission rate；If under current transmission rate, the transmission success rate of message is relatively low, then can suitably reduce hair
Transmission rate.Pass through the regulation to transmission rate, enabling corresponding transmission rate is tested, it is ensured that can either use compared with
High speed sends message and improves the handling capacity of system, and and can enough avoids being influenceed to send success rate by larger interference.
Fig. 4 shows the schematic block diagram of Wireless Telecom Equipment according to an embodiment of the invention.
As shown in figure 4, Wireless Telecom Equipment 400 according to an embodiment of the invention, is configured with multiple radio frequency chips,
The Wireless Telecom Equipment 400 includes：Packet sending unit 402, for choosing a transmission in the multiple radio frequency chip
Chip, and send message using the transmission chip；Time recording unit 404, for recording when being sent completely of the message
Between；Results verification unit 406, in using the preset time period for being sent completely the time as start time point, if described
Any radio frequency chip in multiple radio frequency chips receives confirmation, then confirms that the message is sent successfully.
In the technical scheme, after the transmission of message is completed, no matter receiving confirmation（That is ACK）Be which radio frequency
Chip, for example be the chip or other chips for sending the message, as long as received in preset time period, can be true
Recognize the message to send successfully, without resending message, avoid occupancy from eating dishes without rice or wine overlong time.Simultaneously as improve report
The success rate of text so that the physical rate of itself need not be adjusted by sending the radio frequency chip of the message, help to ensure that the hair of message
Transmission rate, so as to contribute to the handling capacity of lifting system.
Certainly, it is necessary to which explanation, technical scheme should share same channel corresponding to multiple radio frequency chips
Situation so that multiple message will not occur within the same time and send event, avoid confirming corresponding to the ACK that receives
Message.
More specifically, the Wireless Telecom Equipment 400 can be AP, then corresponding ACK senders can be STA or other
AP；Or Wireless Telecom Equipment 400 can also be STA, then corresponding ACK senders can be AP or other STA.
In the technical scheme, highlight when other any radio frequency chips outside transmission chip receive ACK, equally
It can be confirmed to be and send successfully；Message is voluntarily sent with reference to transmission chip and receives ACK transmission confirmation process so that no matter
When which radio frequency chip receives the ACK of return, sent successfully also regarded as message, so as to be favorably improved the hair of message
Send success rate, the data throughout in lifting region.
In any of the above-described technical scheme, it is preferable that the time recording unit 404 is used for：Obtain opening for the message
Originate and send the time, and transmission rate according to the message and length computation obtain the time length required for sending the message
Degree, and start to send the time according to described and be sent completely the time described in the required time span calculates.
In the technical scheme, after radio frequency chip competition to channel, confirm to start the time for sending message（Start to send out
Send the time）, and the Duration based on the message（Period）It is determined that the time span sent needed for operation is performed, so as to true
It is fixed final to be sent completely the time.Wherein, specifically can be by the modulated process to message, obtaining its message length and selection
Transmission rate, so as to obtain the business of Duration concrete numerical value, i.e. message length and transmission rate.
It is, of course, also possible to by other various ways, it can be equally used for acquisition and be sent completely the time, for example supervise
Depending on the transmission process to message, and at the time of packet is completed to be sent, confirm as being sent completely the time.
In any of the above-described technical scheme, it is preferable that also include：Time complexity curve unit 408, for according to the transmission core
The time difference between main radio frequency chip in piece and the multiple radio frequency chip, it is sent completely the time to described and is modified, and
According to the time difference between other described any radio frequency chips and the main radio frequency chip, the time for receiving the confirmation is repaiied
Just.
In the technical scheme, because each chip has the time of itself, but set due to different chips starting when
Between may be different, and error may also be produced after operation after a while, so as to cause to be determined according to the time finally
Corresponding to ACK during message, it may lead to not identify and confirm exactly, in some instances it may even be possible to cause erroneous judgement.Therefore, by will be every
The time of individual radio frequency chip is compared with the time of main radio frequency chip and corrects, and can avoid erroneous judgement caused by the time difference,
The accuracy for contributing to lifting to judge.Wherein, main radio frequency chip can be default any radio frequency chip.
In any of the above-described technical scheme, it is preferable that also include：Confirm demodulating unit 410, for it is described it is any other
The confirmation that radio frequency chip receives is demodulated, and according to demodulate come physical transmission rate, it is determined that corresponding allow to postpone
Time span；Wherein, the results verification unit 406 is using the permission time delay length as the preset time period, with
It is determined that message corresponding to the confirmation being currently received.
In the technical scheme, because of situations such as the distance between the receiving-transmitting sides of message distance, signal condition difference, all
ACK transmission speed may be caused to receive influence, thus pass through physical transfer speed corresponding to each ACK is demodulated and determined
Rate, corresponding preset time period can be obtained to the message sent every time, the ACK for judging and receiving is really right
The message answered, so as to be favorably improved the accuracy of judgement.
Certainly, it is relatively fixed for the position of the receiving-transmitting sides of such as message（I.e. transmission rate is balanced）Or need not be very high
In the case of accuracy, it is clear that regular time section can also be set to realize the matching between ACK and message, without every
It is secondary that processing is all demodulated to ACK, the performance requirement to equipment is reduced, helps speed up processing speed.
In any of the above-described technical scheme, it is preferable that at least one chip in the multiple radio frequency chip is low reception
The radio frequency chip of sensitivity, its receiving sensitivity are less than or equal to default low receiving sensitivity threshold value；And the multiple penetrate
At least one chip in frequency chip is the radio frequency chip of high receiving sensitivity, and its receiving sensitivity is more than or equal to default height
Receiving sensitivity threshold value.
In the technical scheme, because the present invention is in the transmission square chip of message and inconsistent ACK reception square chip,
Transmission situation that equally can be to message confirms, thus by setting the chip, at least of at least one low receiving sensitivity
The chip of one high receiving sensitivity, it can solve the problem that and " external interference is not easily susceptible to during low receiving sensitivity but is not easy to receive
ACK, even and if ACK " contradiction easily can be also received during high receiving sensitivity by external interference but dtr signal, make
Obtain under any time, can ensure that the reception that the success of message is sent with ACK confirms, contribute to the message of lifting system to send
Success rate and the stability of a system.
As a kind of more preferred embodiment, at least one chip in the multiple radio frequency chip is pre-configured
The radio frequency chip of the low receiving sensitivity；And at least one chip in the multiple radio frequency chip is pre-configured described
The radio frequency chip of high receiving sensitivity.
It is pre-configured by being carried out to the hardware device of radio frequency chip so that different radio frequency chips in the technical scheme
Low receiving sensitivity or high receiving sensitivity corresponding to being cured as, so as in application process, avoid manually or automatically adjusting
Maloperation caused by whole, it is ensured that user maintains preferable usage experience all the time.
As a kind of more preferred embodiment, in addition to：Sensitivity setting unit 412, received for basis
Adjust instruction, at least one chip in the multiple radio frequency chip is adjusted to the radio frequency chip of the low receiving sensitivity,
And at least one chip in the multiple radio frequency chip is adjusted to the radio frequency chip of the high receiving sensitivity.
In the technical scheme, Mobile state adjustment can be entered to the sensitivity of each chip, enables to the sensitive of chip
Degree is more conformed in actual conditions, so that user obtains optimal usage experience.
In any of the above-described technical scheme, it is preferable that also include：Successful rate statistics unit 414, it is the multiple for counting
Message of each radio frequency chip in nearest preset times in radio frequency chip sends success rate；Rate adjustment unit 416, use
In the message transmitting spped rate that the corresponding radio frequency chip of success rate adjustment is sent according to the message, wherein, the message sends speed
Rate sends success rate with the message and is proportionate.
In the technical scheme, if under current transmission rate, message has higher transmission success rate, then can be with
Properly increase transmission rate；If under current transmission rate, the transmission success rate of message is relatively low, then can suitably reduce hair
Transmission rate.Pass through the regulation to transmission rate, enabling corresponding transmission rate is tested, it is ensured that can either use compared with
High speed sends message and improves the handling capacity of system, and and can enough avoids being influenceed to send success rate by larger interference.
Fig. 5 shows the high-level schematic functional block diagram of the equipment of transmission message according to an embodiment of the invention.
As shown in figure 5, the equipment 500 according to an embodiment of the invention for sending message, including：
Message sending module 502, ACK receiving modules 504, message ACK matching modules 506, clock synchronization module 508, report
Literary rate selection module 510 and receiving sensitivity distribute module 512.Below to above-mentioned each functional module message transmission
The function and processing procedure realized during confirming with ACK are described in detail.
Message sending module 502 is used to be transmitted message, the WLAN chips actually included corresponding to equipment 500（Together
When, also correspond to the packet sending unit 402 shown in Fig. 4）, than chip 1 as shown in Figure 2, chip 2 etc., pass through these hardware
WLAN chips actually perform the transmission to message.
ACK receiving modules 504 are used to receive ACK, the WLAN chips actually also corresponded in equipment 500（Together
When, the radio frequency chip that also corresponds in the Wireless Telecom Equipment 400 shown in Fig. 4）.For processing in logic, message sends mould
Block 502 and ACK receiving modules 504 are separation, for realizing difference in functionality；And from hardware configuration for, any WLAN cores
Piece is all possibly used for sending message or receives ACK.
Message ACK matching modules 506（Corresponding to the results verification unit 406 shown in Fig. 4）For the ACK to receiving with
The message of transmission is matched, and judges whether both correspond to, i.e.,：If after completing to the transmission of some message, certain
In period, such as the referred to as TIMEOUT periods, ACK is have received, then confirms that the message is sent successfully（It is i.e. corresponding
Equipment is properly received）.
In this application, it the ACK received for any chip, can share, and be used between all chips
Matched with message.Therefore, even if after the transmission message of chip 1, chip 2 have received ACK, but as long as the time between the two
Difference is considered as the ACK and matched with the message, and confirm that the message is sent successfully within the above-mentioned TIMEOUT periods.
Due to being related to the comparison to the time, thus need to obtain message first and be sent completely the time.Specifically, Fig. 6
To calculate the schematic flow sheet that message is sent completely the time in the embodiment shown in Fig. 5.
The preferred embodiment of time is sent completely as calculating message, as shown in fig. 6, including：
Step 602, the timestamp for sending message is obtained.Specifically refer to when some chip is sent after competing to channel
The timestamp of the message.
Step 604, obtain and send speed and message byte number used in message.
Step 606, the Duration of message, i.e. message byte number and the ratio of speed are calculated.
Step 608, the time that is sent completely of message is calculated, that is, sends the timestamp and Duration sums of message.
Message ACK matching modules 506 perform the detailed process to the matching operation between message and ACK, as shown in Figure 7.
Step 702, the deadline stamp that chip A1 sends message is obtained.Here chip A1 is one assumed in equipment
Chip, so that chip A1 sends message as an example, illustrate technical scheme.
, specifically can be by the way of as shown in Figure 6 for being sent completely timestamp；Or such as directly through monitoring
To the transmission process of message, so as to when packet is sent completely corresponding to message, be recorded as being sent completely timestamp.
Step 704, judge whether chip A1 receives ACK, if received, into step 708, otherwise into step
706。
Step 706, judge whether other chips in equipment in addition to chip A1 receive ACK, if received, enter
Enter step 708, otherwise directly terminate, and judge that message sends failure, it is necessary to be resend by chip A1.
Step 708, ACK reception timestamp is obtained.The ACK that either chip A1 or any other chip receive, all
Obtain the timestamp that any chip receives ACK.
Step 710, timestamp is sent completely compared with ACK reception timestamp by what A1 was obtained, if being sent completely
Earlier, i.e. ACK sends and received afterwards timestamp in the message, then it is probably the ACK corresponding to the message to illustrate it, is entered
Enter step 712；If ACK reception timestamp is earlier, the timestamp corresponding to the message is obviously unlikely to be, terminates flow,
And judge that message sends failure, it is necessary to be resend by chip A1.
Step 712, by demodulating the ACK received, to obtain the physical transmission rate used during its modulation, and count accordingly
TIMEOUT time spans corresponding to calculation.
Specifically, TIMEOUT time spans be for judge the reception time of the ACK for message it is whether reasonable
, if beyond the TIMEOUT times, illustrate that the ACK mismatches with message, i.e. the ACK be not to the message really
Recognize information.Wherein, if physical transmission rate is slower, corresponding TIMEOUT time spans are longer, the on the contrary then TIMEOUT times
Length is shorter.
Step 714, whether the reception timestamp and TIMEOUT for judging ACK match, i.e. whether the reception timestamp of ACK
Meet：Timestamp and TIMEOUT sums are sent completely less than or equal to message, if satisfied, then entering step 716, is otherwise entered
Enter step 718.
Certainly, specific calculation has a lot, such as：Judge that ACK's receives timestamp and when being sent completely of message
Between the difference stabbed whether meet to be less than or equal to TIMEOUT time spans etc..
Step 716, judge that ACK matches with message, confirmation message is sent successfully.
Step 718, judge that ACK mismatches with message, confirmation message sends failure.
Step 720, the identification to ACK is completed, deletes ACK.
Further, in order that deterministic process it is more reasonable, if send message chip be not received by ACK, example
Chip A1 described above, then it can be judged as that message sends failure in advance first；Then, if other chips have received ACK,
By it with being judged as that the message for sending failure carries out the comparison of timestamp in advance, it is confirmed whether to send failure with final.
Because the timestamp for being sent completely timestamp and receiving ACK of message is set by different chips, and each core
The timestamp of piece is determined by the clock of itself, and the initial time set by each clock is possible to different, and clock is passing through
Certain error may also be produced after a period of time.Therefore, caused in order to avoid the time error of chip chamber to judged result
Harmful effect, can be by clock synchronization module 508 as shown in Figure 5（Corresponding to the time complexity curve unit 408 shown in Fig. 4）Adopt
It is adjusted with mode as shown in Figure 8.
A preferred embodiment being adjusted as clock synchronization module 508 to the time, as shown in figure 8, including：
Step 802, master chip receives Beacon（Beacon frame）Interrupt.
Step 804, the timestamp of master chip is obtained.
Step 806, all timestamps from chip are obtained, should correspond to WLAN chips as shown in Figure 2 from chip.
Step 808, the time tolerance from chip and master chip is calculated.
Step 810, difference is updated.
By the above-mentioned means, using the time of master chip as the standard time, and by recording each from chip and master chip
Between time difference so that shown in Fig. 5 message ACK matching modules 506 carry out the time comparison and judgement when, point
Not Ji Suan message be sent completely the time relative to master chip timestamp and ACK receive the time relative to master chip timestamp,
It is achieved thereby that it is synchronous to the clock of different chips, avoid erroneous judgement.Wherein, it is all to constitute this from chip and master chip and set
All radio frequency chips in standby 500.
In addition, for may also contain message rate selecting module 510 in the equipment 500 shown in Fig. 5 and received sensitive
Distribute module 512 is spent, wherein：
Message rate selecting module 510（Corresponding to the rate adjustment unit 416 shown in Fig. 4）, reported for being sent to chip
The speed used when literary is selected.If the transmission success rate for having completed the message of transmission is higher, transmission speed can be improved
Rate, otherwise need to reduce transmission rate, to reduce the possibility of failure.
And in the present invention, due to the transmission to message and the reception to ACK can be completed by different chips, so as to
Transmission success rate of the chip to message is improved, helps speed up or does not reduce the transmission rate to message at least, avoid eating dishes without rice or wine
Taken for a long time and reduce the handling capacity of system.
Receiving sensitivity distribute module 512（Corresponding to the sensitivity setting unit 412 shown in Fig. 4）, as one kind more
It specific embodiment, can be used for being directly the pre-configured different receiving sensitivity of different chips, including be at least a core
Piece sets higher receiving sensitivity, to ensure the reception to ACK；And at least a chip sets relatively low reception sensitive
Degree, it is interference-free during ensuring to send message.
Certainly, can also in the course of the work except the receiving sensitivity of pre-configured fixation, the reception spirit to each chip
Sensitivity enters Mobile state adjustment so that exists all the time：At least one chip has higher receiving sensitivity, to ensure to ACK's
Receive；It is interference-free during ensuring to send message and at least one chip has relatively low receiving sensitivity.
Therefore, the setting to receiving sensitivity is passed through so that send out in equipment corresponding to the chip to weaker receiving sensitivity
Deliver newspaper text when, ACK can be received by the chip of higher receiving sensitivity, so as to improve the transmission success rate of message；Meanwhile
When existing compared with strong jamming, message can be sent by the relatively low chip of receiving sensitivity, so as to resist compared with strong jamming.
Be described in detail technical scheme above in association with accompanying drawing, the present invention propose a kind of wireless communications method and
A kind of Wireless Telecom Equipment, the success rate that the message in wireless communication procedure is sent can be improved, the repetition for reducing message is sent,
Contribute to the handling capacity of lifting system.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (16)
- A kind of 1. wireless communications method, it is characterised in that including：Send method, apparatus and a transmission chip is chosen in multiple radio frequency chips of configuration, for sending message；Record the message is sent completely the time；In using the preset time period for being sent completely the time as start time point, if any in the multiple radio frequency chip Radio frequency chip receives confirmation, then confirms that the message is sent successfully；Wherein, recording the process for being sent completely the time of the message includes：Obtain the message starts the transmission time；Time span required for sending the message is obtained according to the transmission rate of the message and length computation；Start to send the time according to described and be sent completely the time described in the required time span calculates.
- 2. wireless communications method according to claim 1, it is characterised in thatIn using the preset time period for being sent completely the time as start time point, if except described in the multiple radio frequency chip Other any radio frequency chips outside transmission chip receive the confirmation, then confirm that the message is sent successfully.
- 3. wireless communications method according to claim 2, it is characterised in that also include：The time difference between main radio frequency chip in the transmission chip and the multiple radio frequency chip, it is sent completely to described Time is modified；AndAccording to the time difference between other described any radio frequency chips and the main radio frequency chip, to the confirmation that receives when Between be modified.
- 4. wireless communications method according to claim 2, it is characterised in that also include：The confirmation received to other described any radio frequency chips is demodulated, and according to demodulate come physical transmission rate, It is determined that corresponding permission time delay length；AndUsing the permission time delay length as the preset time period, to determine report corresponding to the confirmation being currently received Text.
- 5. wireless communications method according to any one of claim 1 to 4, it is characterised in thatAt least one chip in the multiple radio frequency chip is the radio frequency chip of low receiving sensitivity, and its receiving sensitivity is less than Or equal to default low receiving sensitivity threshold value；AndAt least one chip in the multiple radio frequency chip is the radio frequency chip of high receiving sensitivity, and its receiving sensitivity is more than Or equal to default high receiving sensitivity threshold value.
- 6. wireless communications method according to claim 5, it is characterised in thatAt least one chip in the multiple radio frequency chip is the radio frequency chip of the pre-configured low receiving sensitivity；AndAt least one chip in the multiple radio frequency chip is the radio frequency chip of the pre-configured high receiving sensitivity.
- 7. wireless communications method according to claim 5, it is characterised in that also include：According to the adjust instruction received, at least one chip in the multiple radio frequency chip is adjusted to the low reception spirit The radio frequency chip of sensitivity, and at least one chip in the multiple radio frequency chip is adjusted to the high receiving sensitivity Radio frequency chip.
- 8. wireless communications method according to any one of claim 1 to 4, it is characterised in that also include：Count message of each radio frequency chip in the multiple radio frequency chip in nearest preset times and send success rate, with Adjust the message transmitting spped rate of corresponding radio frequency chip；Wherein, the message transmitting spped rate sends success rate with the message and is proportionate.
- 9. a kind of Wireless Telecom Equipment, it is configured with multiple radio frequency chips, it is characterised in that the Wireless Telecom Equipment includes：Packet sending unit, for choosing a transmission chip in the multiple radio frequency chip, and utilize the transmission chip Send message；Time recording unit, the time is sent completely for record the message；Results verification unit, in using the preset time period for being sent completely the time as start time point, if described more Any radio frequency chip in individual radio frequency chip receives confirmation, then confirms that the message is sent successfully；Wherein, the time recording unit is used for：Obtain the message starts to send the time, and described in transmission rate according to the message and length computation obtain transmission Time span required for message, and start to send time and the required time span calculating hair according to described Send the deadline.
- 10. Wireless Telecom Equipment according to claim 9, it is characterised in that the results verification unit is specifically used for：In using the preset time period for being sent completely the time as start time point, if except described in the multiple radio frequency chip Other any radio frequency chips outside transmission chip receive the confirmation, then confirm that the message is sent successfully.
- 11. Wireless Telecom Equipment according to claim 10, it is characterised in that also include：Time complexity curve unit, for the time between the main radio frequency chip in the transmission chip and the multiple radio frequency chip Difference, it is sent completely the time to described and is modified, and according between other described any radio frequency chips and the main radio frequency chip Time difference, the time of the confirmation to receiving is modified.
- 12. Wireless Telecom Equipment according to claim 10, it is characterised in that also include：Confirming demodulating unit, the confirmation for being received to other described any radio frequency chips is demodulated, and according to demodulating The physical transmission rate come, it is determined that corresponding permission time delay length；Wherein, the results verification unit is current to determine using the permission time delay length as the preset time period Message corresponding to the confirmation received.
- 13. the Wireless Telecom Equipment according to any one of claim 9 to 12, it is characterised in thatAt least one chip in the multiple radio frequency chip is the radio frequency chip of low receiving sensitivity, and its receiving sensitivity is less than Or equal to default low receiving sensitivity threshold value；AndAt least one chip in the multiple radio frequency chip is the radio frequency chip of high receiving sensitivity, and its receiving sensitivity is more than Or equal to default high receiving sensitivity threshold value.
- 14. Wireless Telecom Equipment according to claim 13, it is characterised in thatAt least one chip in the multiple radio frequency chip is the radio frequency chip of the pre-configured low receiving sensitivity；AndAt least one chip in the multiple radio frequency chip is the radio frequency chip of the pre-configured high receiving sensitivity.
- 15. Wireless Telecom Equipment according to claim 13, it is characterised in that also include：Sensitivity setting unit, the adjust instruction received for basis, by least one core in the multiple radio frequency chip Piece is adjusted to the radio frequency chip of the low receiving sensitivity, and at least one chip in the multiple radio frequency chip is adjusted For the radio frequency chip of the high receiving sensitivity.
- 16. the Wireless Telecom Equipment according to any one of claim 9 to 12, it is characterised in that also include：Successful rate statistics unit, for counting each radio frequency chip in the multiple radio frequency chip in nearest preset times Message send success rate；Rate adjustment unit, for sending the message transmitting spped rate of the corresponding radio frequency chip of success rate adjustment according to the message, Wherein, the message transmitting spped rate sends success rate with the message and is proportionate.
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| CN110995537B (en) * | 2019-12-02 | 2023-02-03 | 重庆矢崎仪表有限公司 | Multi-chip closed-loop communication delay calculation method, communication synchronization method and communication system |
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| CN101895325A (en) * | 2010-07-30 | 2010-11-24 | 杭州华三通信技术有限公司 | Method and device for transmitting data |
| CN102523608A (en) * | 2011-12-26 | 2012-06-27 | 福建星网锐捷网络有限公司 | Message sending method and device |
| CN102523079A (en) * | 2011-12-05 | 2012-06-27 | 福建星网锐捷网络有限公司 | Method for determining wireless sending state, device and wireless access point |
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| CN101895325A (en) * | 2010-07-30 | 2010-11-24 | 杭州华三通信技术有限公司 | Method and device for transmitting data |
| CN102523079A (en) * | 2011-12-05 | 2012-06-27 | 福建星网锐捷网络有限公司 | Method for determining wireless sending state, device and wireless access point |
| CN102523608A (en) * | 2011-12-26 | 2012-06-27 | 福建星网锐捷网络有限公司 | Message sending method and device |
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