CN109302274A - WLAN full duplex transmission method and device, readable storage medium storing program for executing, terminal - Google Patents
WLAN full duplex transmission method and device, readable storage medium storing program for executing, terminal Download PDFInfo
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- CN109302274A CN109302274A CN201710606331.3A CN201710606331A CN109302274A CN 109302274 A CN109302274 A CN 109302274A CN 201710606331 A CN201710606331 A CN 201710606331A CN 109302274 A CN109302274 A CN 109302274A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1423—Two-way operation using the same type of signal, i.e. duplex for simultaneous baseband signals
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- Computer Networks & Wireless Communication (AREA)
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Abstract
A kind of WLAN full duplex transmission method and device, readable storage medium storing program for executing, terminal, WLAN full duplex transmission method include: the first data block for receiving the first emission source and sending；The second data block is sent together when receiving first data block to first emission source.The handling capacity and capacity of WLAN can be improved in technical solution through the invention.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of WLAN full duplex transmission method and devices, readable storage
Medium, terminal.
Background technique
In field of wireless, WLAN (Wireless Local Area Networks, WLAN) is fast-developing,
The whole world is growing to WLAN covering demand.
In the prior art, Institute of Electrical and Electric Engineers industrial specification IEEE802.11 working group successively defines
A series of WLAN technical standards such as 802.11a, 802.11b, 802.11g, 802.11n mainly formulate physical layer (Physical
Layer, PHY) and media access control (Media Access Control, MAC) layer specification.Then occur other successively
Business group is dedicated to development and is related to the specification of existing 802.11 technological improvement.The basic framework of WLAN refer to by website (Station,
STA) the basic service set (Basic Service Set, BSS) formed, the BSS include an access point (Access
Point, AP) and multiple non-ap stations points (Non-AP Station) associated with AP.Existing WLAN work is in same frequency
When rate, using semiduplex mode.That is, website can only carry out sending or receiving for signal in synchronization.
But sending and receiving for signal cannot carry out simultaneously under semiduplex mode, the handling capacity and capacity of WLAN is lower.
Summary of the invention
Present invention solves the technical problem that being how to improve the handling capacity and capacity of WLAN.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of WLAN full duplex transmission method, WLAN full duplex
Transmission method includes: the transmission request for receiving the first emission source and sending, and feedback allows to send information to first emission source；
Receive the first data block that first emission source is sent；The second data block is sent together extremely when receiving first data block
First emission source.
Optionally, second data block that sends together when receiving first data block is to the first emission source packet
It includes: when starting to receive first data block, synchronously starting to send second data block to first emission source；Or
Person starts to send second data block to first emission source after a part for receiving first data block.
Optionally, second data block that sends together when receiving first data block is to the first emission source packet
It includes: after a part for receiving first data block, decoding a part of first data block, to obtain first number
According to the sending duration of block；Described first is determined according to the transmission initial time of first data block and sending duration
The transmission finish time of data block；Before the transmission finish time of first data block, first number is being continued to
According to block remainder when send the second data block together to first emission source.
Optionally, first data block is the continuous data block of sending time.
Optionally, at the beginning of carrying transmission opportunity in transmission request and the duration.
Optionally, second data block that sends together when receiving first data block is to the first emission source packet
Include: be sent completely it is described allow send information after, according at the beginning of the transmission opportunity and the duration determine described in
The finish time of transmission opportunity；At the beginning of the transmission opportunity and in the time range between finish time, receiving
The second data block is sent when first data block together to first emission source.
Optionally, the first instruction information is carried in the transmission request or first data block, to indicate subsequent work
Operation mode is full duplex.
Optionally, second indication information and given threshold are carried in the transmission request or first data block, it is described
Second indication information estimates to indicate that the transmitting terminal of the second data block receives power to it, and big in the reception power
Second data block is sent after the given threshold.
Optionally, first data block include data and for the second data block transmitting terminal send data really
Recognize, second data block includes the confirmation of data and the data sent for the first emission source.
The embodiment of the invention also discloses a kind of WLAN full duplex transmission device, WLAN full duplex transmission device includes: to connect
Feedback module is received, the transmission request sent suitable for receiving the first emission source, and feedback allows to send information to first transmitting
Source；Data reception module, the first data block sent suitable for receiving first emission source；Data transmission blocks, suitable for connecing
The second data block is sent when receiving first data block together to first emission source.
Optionally, the data transmission blocks include: the first transmission unit, suitable for starting to receive first data block
When, synchronously start to send second data block to first emission source；Second transmission unit is suitable for receiving described the
After a part of one data block, start to send second data block to first emission source.
Optionally, the data transmission blocks include: decoding unit, suitable for receiving a part of first data block
Afterwards, a part of first data block is decoded, to obtain the sending duration of first data block；First finish time
Determination unit, suitable for determining first data block according to the transmission initial time and sending duration of first data block
Transmission finish time；First data transmission unit, suitable for continuing before the transmission finish time of first data block
The second data block is sent when receiving the remainder of first data block together to first emission source.
Optionally, first data block is the continuous data block of sending time.
Optionally, at the beginning of carrying transmission opportunity in transmission request and the duration.
Optionally, the data transmission blocks include: the second finish time determination unit, suitable for be sent completely it is described permit
Perhaps after sending information, according to the transmission opportunity at the beginning of and the duration determine finish time of the transmission opportunity；
Second data transmission unit, suitable for connecing at the beginning of the transmission opportunity and in the time range between finish time
The second data block is sent when receiving first data block together to first emission source.
Optionally, the first instruction information is carried in the transmission request or first data block, to indicate subsequent work
Operation mode is full duplex.
Optionally, second indication information and given threshold are carried in the transmission request or first data block, it is described
Second indication information estimates to indicate that the transmitting terminal of the second data block receives power to it, and big in the reception power
Second data block is sent after the given threshold.
Optionally, first data block include data and for the second data block transmitting terminal send data really
Recognize, second data block includes the confirmation of data and the data sent for the first emission source.
The embodiment of the invention also discloses a kind of readable storage medium storing program for executing, are stored thereon with computer instruction, the computer
The step of executing the WLAN full duplex transmission method when instruction operation.
The embodiment of the invention also discloses a kind of terminal, including memory and processor, being stored on the memory can
The computer instruction run on the processor, it is entirely double that the processor executes the WLAN when running the computer instruction
The step of work transmission method.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that
Technical solution of the present invention receives the transmission request that the first emission source is sent, and feeds back and allow to send information to described the
One emission source；Receive the first data block that first emission source is sent；Send together when receiving first data block
Two data blocks are to first emission source.Technical solution of the present invention allows to send information by feedback and informs the first transmitting source acknowledgement
The first data block is sent, and sends the second data block to the first emission source together when receiving the first data block, is realized and the
The full-duplex data of one emission source transmits.That is, in the time range that the first emission source sends the first data block, first
Emission source also can receive the second data block, the receiving end of the first data block in the time range for receiving the first data block,
The second data block can be sent；Sending and receiving for signal can be carried out in synchronization, thus improve WLAN handling capacity and
Capacity improves the data transmission performance of WLAN.
Further, second data block that sends together when receiving first data block is to the first emission source packet
It includes: when starting to receive first data block, synchronously starting to send second data block to first emission source；Or
Person starts to send second data block to first emission source after a part for receiving first data block.This hair
Bright technical solution is by defining the transmission opportunity of the second data block, namely defines machine at the beginning of full duplex transmission, may be implemented
With the backward compatibility of traditional WLAN protocol.
Detailed description of the invention
Fig. 1 is a kind of flow chart of WLAN full duplex transmission method of the embodiment of the present invention；
Fig. 2 is a kind of application scenarios schematic diagram of WLAN full duplex transmission method of the embodiment of the present invention；
Fig. 3 is another application scenarios schematic diagram of WLAN full duplex transmission method of the embodiment of the present invention；
Fig. 4 is another application scenarios schematic diagram of WLAN full duplex transmission method of the embodiment of the present invention；
Fig. 5 is another application scenarios schematic diagram of WLAN full duplex transmission method of the embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of WLAN full duplex transmission device of the embodiment of the present invention.
Specific embodiment
As described in the background art, sending and receiving for signal cannot carry out simultaneously under semiduplex mode, and WLAN's handles up
Amount and capacity are lower.
After technical solution of the present invention allows transmission information to receive the first data block with the first transmitting source acknowledgement by feedback,
The second data block to the first emission source is sent when receiving the first data block together, realizes the full-duplex data with the first emission source
Transmission；That is, the first emission source also can receive second in the time range that the first emission source sends the first data block
Data block, sending and receiving for signal can be carried out in synchronization, to improve the handling capacity and capacity of WLAN, improve WLAN
Data transmission performance.
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
Fig. 1 is a kind of flow chart of WLAN full duplex transmission method of the embodiment of the present invention.
The WLAN full duplex transmission method can be used for terminal side, and the terminal can be website in a wlan
(Station, STA) or access point (Access Point, AP).WLAN full duplex transmission method shown in FIG. 1 may include with
Lower step:
Step S102: the first data block that first emission source is sent is received；
Step S103: the second data block is sent together when receiving first data block to first emission source.
In specific implementation, first emission source can be the access point in WLAN, the website being also possible in WLAN.The
One emission source can directly transmit the first data block to the receiving end of first data block.
It is understood that the first emission source can refer to relatively early one end for sending data in full duplex transmission.
In specific implementation, in step s 102, the first emission source sends the first data block, and the first data block reception end can be with
Receive the first data block.Furthermore, the first data block includes at least the first emission source data to be sent.
And then in step s 103, the second data block is sent together when receiving first data block to first hair
Penetrate source.Specifically, sending within the scope of the first data block duration in the first emission source, the first data block can be executed
With the full duplex transmission scheme of the second data block.Furthermore, the second data block includes at least the receiving end of the first data block
The data to be sent.
In the present embodiment, the receiving end of the first emission source and the first data block can support full duplex transmission.Specifically,
Each website can understand the ability of opposite end, by modes such as data interactions with AP when accessing AP so as to know opposite end
Whether support full duplex transmission, and then after the receiving end of the first data block receives the first data block, can be directly transmitted
Two data blocks to the first emission source, to realize the full duplex transmission with the first emission source.
Preferably, the receiving end of the first emission source and the first data block is respectively AP and website or website and AP.
After the embodiment of the present invention allows transmission information to receive the first data block with the first transmitting source acknowledgement by feedback, connecing
The second data block to the first emission source is sent when receiving the first data block together, realizes and is passed with the full-duplex data of the first emission source
It is defeated；That is, the first emission source also can receive the second number in the time range that the first emission source sends the first data block
According to block, sending and receiving for signal can be carried out in synchronization, to improve the handling capacity and capacity of WLAN, improve WLAN's
Data transmission performance.
Preferably, second data block that sends together when receiving first data block is to the first emission source packet
It includes: when starting to receive first data block, synchronously starting to send second data block to first emission source；Or
Person starts to send second data block to first emission source after a part for receiving first data block.
In the present embodiment, the transmission opportunity of the second data block be can be at the time of start to receive first data block,
It can be after a part for receiving first data block.By defining the transmission opportunity of the second data block, namely define
The backward compatibility with traditional WLAN protocol may be implemented in machine at the beginning of full duplex transmission.
Preferably, first data block include data and for the second data block transmitting terminal send data really
Recognize, second data block includes the confirmation of data and the data sent for the first emission source.
In specific implementation, since the receiving end of the first emission source and the first data block carries out full duplex transmission, for
The feedback acknowledgment (Acknowledge, ACK) for the data having received will postpone.In full duplex transmission, it is forbidden to use immediately
Feedback acknowledgment, and confirmed using Delay Feedback.Also the data that the first data source can be sent and for the second data
The confirmation for the data that the transmitting terminal of block is sent merges, and forms the first data block and is sent together；It can be by the first data
The data and merge for the confirmation for the data that the first emission source is sent that the receiving end of block to be sent, form the second data block
It is sent together, so as to improve efficiency of transmission and makes feedback acknowledgment much sooner, guarantee data transmission performance.
Preferably, step S103 may comprise steps of: after a part for receiving first data block, decode institute
A part of the first data block is stated, to obtain the sending duration of first data block；According to first data block
It sends initial time and sending duration determines the transmission finish time of first data block；In first data block
Before sending finish time, the second data block is sent together when continuing to the remainder of first data block to described
First emission source.
In the present embodiment, the opportunity that the second data block is sent is after a part for receiving the first data block.It is receiving
To after a part of the first data block, it can be decoded, to obtain the sending duration of the first data block；In addition,
The source that can also know the first data block is the mark that the first emission source is carried in the first emission source namely the first data block
Know.In turn, according to the transmission initial time and sending duration of the first data block, first data block is being continued to
The second data block is sent when remainder together to the first emission source.
It is understood that directly transmitting the scene of the second data block after the sending duration for knowing the first data block
It can be the scene that the first data block carries out broadcast transmission.
Further, first data block is the continuous data block of sending time.Due to using in WLAN based on competition
Access way carry out access wireless channel, therefore in order to avoid carrying out full duplex transmission in the first data block and the second data block
During interrupted by other website contention access, can configure the first data block be the continuous data block of sending time.The
Transmission of one data block within continuous time, can be to avoid the receiving end of the first emission source and the first data block and other websites
Connection, to ensure that the performance of full duplex transmission.
Specifically it can refer to Fig. 2, Fig. 2 is a kind of application scenarios schematic diagram of WLAN full duplex transmission of the embodiment of the present invention.
In the present embodiment, website A1 and website A2 support full duplex transmission.Website A1 is the first emission source.Website A1 exists
Moment T1 starts to transmit the first data block, and website A2 can be known after a part for receiving the first data block by decoding
First data block will terminate to send in moment T4；Then website A2 starts to send the second data block in moment T2, terminates in moment T3
Send the second data block.Wherein, moment T2 is later than moment T1；The transmission finish time T3 of second data block can be earlier than the first number
According to the transmission finish time T4 of block；The transmission finish time T4 of the first data block can also be equal to.
It is understood that website A1 can be access point, then website A2 can be website (Station, STA)；Or
Website A1 can be website (Station, STA), then website A2 can be access point.
In the present embodiment, the first data block may include that website A1 is sent to the data of website A2 and sends out for website A2
Send the confirmation of data；Second data block may include that website A2 is sent to the data of website A1 and sends data for website A1
Confirmation.Wherein, confirmation (immediately ACK) is prohibited from using immediately.
In one change case of the embodiment of the present invention, described first is also obtained after decoding a part of first data block
The receiving end of data block identifies.It is then described before the transmission finish time of first data block, continuing to described the
Sent together when the remainder of one data block the second data block to first emission source include: by the receiving end mark with
Self identification is compared, to obtain comparison result；If the comparison result indicates the receiving end mark and self identification
Unanimously, then before the transmission finish time of first data block, in the remainder for continuing to first data block
When send the second data block together to first emission source.
With continued reference to Fig. 2, website A1 starts to transmit the first data block in moment T1, and website A2 is receiving the first data block
A part after, can know that the first data block will terminate to send and the reception of the first data block in moment T4 by decoding
End mark A2.Receiving end mark A2 is compared with self identification A2 website A2, and comparison result is consistent, then website A2 determination into
Row full duplex transmission, namely start to send the second data block in moment T2, terminate to send the second data block in moment T3.
It is understood that in the sending duration of knowing the first data block and comparing the just transmission the of receiving end mark
The scene of two data blocks can be the scene that the first data block carries out unicast transmission；In other words, in such a scenario, the first data
Block is the receiving end for being individually sent to first data block.
In another change case of the embodiment of the present invention, Fig. 3 specifically can refer to, the second data block may include website A2 hair
It gives the data of website A1 and sends the confirmation of data for website A1.Further, since the finish time T3 of the second data block
Earlier than the transmission finish time T4 of the first data block, therefore the first data block can only include the number that website A1 is sent to website A2
According to so that website A2 can send the confirmation immediately (immediately ACK) for the data.
With continued reference to Fig. 1, it is preferable that can also include step S101 before step S102: receiving the first emission source hair
The transmission request sent, and feedback allows to send information to first emission source.Specifically, the first emission source is needing to send
When the first data block, the first data block can be directly transmitted, as shown in Figure 2.It can also be as shown in figure 4, when the first emission source needs
When sending data (data), request (Request To Send, RTS) will first be sent by, which needing, is sent to the data receiver.Such as
The fruit data receiver can receive the data, then can feed back allows to send information (Clear To Send, CTS) described in
First emission source.
Further, transmission opportunity (Transmission Opportunity, TXOP) is carried in the transmission request
At the beginning of and the duration.Specifically, TXOP is the time interval of bounded, the first emission source is sent out within this period
When sending data, other websites will not be with the first emission source competitive channel.Moreover, the first emission source can will be at the beginning of TXOP
The receiving end of the first data block is notified by sending request with the duration.Further, allow to send can also be in information
At the beginning of carrying transmission opportunity and duration namely end time.The transmission opportunity is for the first data block
Receiving end, that is to say, that in the period indicated by TXOP, other websites will not be competed with the receiving end of the first data block
The receiving end of channel, the first data block can carry out any form of full duplex transmission with the first emission source.
With continued reference to Fig. 1, further, step S103 be may comprise steps of: described allow to send being sent completely
After information, according to the transmission opportunity at the beginning of and the duration determine finish time of the transmission opportunity；Described
In time range at the beginning of transmission opportunity between finish time, is sent together when receiving first data block
Two data blocks are to first emission source.
In the present embodiment, the receiving end of the first data block can know the finish time of transmission opportunity by sending request.
After transmission allows to send information, institute can be being received at the beginning of TXOP and in the time range between finish time
The second data block is sent when stating the first data block together to first emission source.Since TXOP is that the first emission source is dedicated, because
It is discontinuous that the sending duration of this first data block can be the time.
Specifically it can refer to Fig. 4, Fig. 4 is the application scenarios schematic diagram of another WLAN full duplex transmission of the embodiment of the present invention.
In the present embodiment, website A1 send RTS to website A2, in the rts carry TXOP at the beginning of and the duration,
The time of the instruction of the RTS as shown in T5 in Fig. 4.After website A2 sends CTS to website A1, website A1 starts to send the first data block
To website A2, transmission finish time of the first data block can finish time earlier than or equal to TXOP.Meanwhile it being sent out in website A2
After sending CTS to website A1, website A2, which can also be synchronized, starts to send the second data block to website A1, the transmission knot of the second data block
The beam moment can finish time earlier than or equal to TXOP.
Due to not having other website competitive channels except website A1 and website A2, the first data block in TXOP
It can be time discontinuous multiple data packets, the second data block is also possible to time discontinuous multiple data packets.
In one change case of the present embodiment, website A1 sends RTS to website A2, and website A2 sends CTS to website A1, stands
At the beginning of point A2 can carry TXOP in CTS and the duration, the time of the instruction of the CTS as shown in T6 in Fig. 4.In website
The concrete scheme that full duplex transmission is carried out in the TXOP of A2 can refer to previous embodiment, and details are not described herein again.
Specifically, the time of TXOP can by network allocation vector (Network Allocation Vector,
NAV) it is arranged.Wherein, NAV is timer (timer), can be used to specify the time for being expected to occupy.In RTS or CTS
When carrying TXOP, its NAV can be set as the duration of TXOP by website A1 or website A2.
Preferably, the first instruction information is carried in the transmission request or first data block, to indicate subsequent work
Operation mode is full duplex.In specific implementation, only after receiving the transmission request for carrying the first instruction information, access point or station
Point can just enter full-duplex transmission mode；Alternatively, after decoding the first data block and obtaining the first instruction information, access point or station
Point can just enter full-duplex transmission mode.Furthermore, it is carried out entirely when access point or website are only supported in transmission opportunity
When duplex transmission, then the first instruction information can be carried when sending request instruction TXOP；It can also refer to allowing to send information
When showing TXOP, the first instruction information is carried.
Preferably, second indication information and given threshold are carried in the transmission request or first data block, it is described
Second indication information is estimated to indicate that the transmitting terminal of the second data block receives power to it, and is greater than in the reception power
Second data block is sent after the given threshold.In specific implementation, receive carry second indication information and setting
Threshold value sends request, or the first data block of decoding obtain second indication information and given threshold, then need to receive function to it
Rate is assessed, and is received after power is greater than or equal to given threshold at it and sent second data block.
For example, can refer to Fig. 5, emission source 1stThe first transmission power and emission source 2 of _ TX_srcndThe second of _ TX_src
Transmission power is identical or different preset value, and in this case, Rule of judgment is emission source 2ndThe reception power of _ TX_src
Greater than given threshold.
Further, the transmitting terminal of the second data block can measure the received signal strength of the transmission link of the first data block
It indicates (Received Signal Strength Indication, RSSI), to receive power as it, therefore only when RSSI is big
In or equal to sending second data block after given threshold.
It should be noted that can only carry second indication information, institute in the transmission request or first data block
Stating given threshold can be what the receiving end of the first emission source and the first data block was appointed in advance, for example, can by agreement into
Row agreement.
It will be apparent to a skilled person that can be commented using any enforceable mode transmission power
Estimate, the embodiment of the present invention is without limitation.
It, can also be according to other parameters and other when determining whether to send the second data block in change case of the invention
Rule of judgment is judged.Specifically, there is the first emission source the first transmission power and first to receive power；First data block
Receiving end have the second transmission power and second receive power.The first of first emission source receives power and the first transmission power
Difference be more than or equal to the first given threshold, and the second difference for receiving power and the second transmission power is more than or equal to second and sets
When threshold value, second data block is just sent.
Preferably, carried in transmission request or first data block third instruction information, the first given threshold and
First transmission power of first emission source, the third instruction information is to indicate that the transmitting terminal of the second data block calculates it
Second receives the first comparison result of the difference of power and the second transmission power and the second given threshold, and calculates described first
The first of emission source receives the second comparison result of the difference of power and first transmission power, and compares according to described first
As a result determine whether to send second data block with second comparison result.Specifically, the second given threshold is stored in advance
In the transmitting terminal of the second data block.
Further, determined whether to send second number according to first comparison result and second comparison result
It may is that the difference of the second reception power and the second transmission power is more than or equal to the second given threshold according to block, and first receives function
When the difference of rate and first transmission power is more than or equal to first given threshold, the receiving end of the first data block sends institute
The second data block is stated, carries out full duplex transmission with the first emission source.
Further, second transmission power can be selected from setting range, calculate in the transmitting terminal of the second data block
When the first comparison result, lesser transmission power can choose, so that the first comparison result is the second reception power and second
The difference of transmission power is more than or equal to the second given threshold.It will be apparent to a skilled person that the setting range can
To carry out the configuration of adaptability according to actual application environment, the embodiment of the present invention is without limitation.
In a change case, Fig. 5, emission source 1 can refer tost_ TX_src and emission source 2nd_ TX_src needs to carry out complete
Duplex transmission.Emission source 1st_ TX_src can send its first transmission power 1st_ TX_pwr and the first given threshold THD_1st
To emission source 2nd_TX_src.Emission source 2nd_ TX_src has the second given threshold THD_2nd, then emission source 2nd_ TX_src exists
Receive emission source 1stThe first transmission power 1 of _ TX_srcst_ TX_pwr and the first given threshold THD_1stAfterwards, detect its
Two transmission powers 2nd_ TX_pwr and second receives power 2ndWhether the difference of _ RX_pwr is less than or equal to the second given threshold THD_
2ndNamely 2nd_RX_pwr–2nd_ TX_pwr >=THD_2nd, to obtain the first comparison result.
Emission source 2nd_ TX_src detects its second reception power 2nd_ RX_pwr, and according to the first transmission power 1st_TX_
Pwr calculates path loss Path_loss namely 1st_ TX_pwr-Path_loss=2nd_RX_pwr.Emission source 2nd_ TX_src according to
Path loss and the second transmission power calculate first and receive power 1st_ RX_pwr namely 2nd_ TX_pwr-Path_loss=1st_RX_
pwr.Judge whether the difference of the first reception power and the first transmission power is greater than first and determines threshold value THD_1 againstNamely 1st_RX_
pwr–1st_ TX_pwr >=THD_1st, to obtain the second comparison result.
In the case that the first comparison result and the second comparison result are to be, emission source 1st_ TX_src and emission source
2nd_ TX_src can just carry out full duplex transmission.
Fig. 6 is a kind of structural schematic diagram of WLAN full duplex transmission device of the embodiment of the present invention.
WLAN full duplex transmission device 60 shown in fig. 6 may include data reception module 602 and data transmission blocks
603。
Wherein, data reception module 602 is suitable for receiving the first data block that the first emission source is sent；Data transmission blocks
603 are suitable for sending the second data block together when receiving first data block to first emission source.
After the embodiment of the present invention allows transmission information to receive the first data block with the first transmitting source acknowledgement by feedback, connecing
The second data block to the first emission source is sent when receiving the first data block together, realizes and is passed with the full-duplex data of the first emission source
It is defeated；That is, the first emission source also can receive the second number in the time range that the first emission source sends the first data block
According to block, sending and receiving for signal can be carried out in synchronization, to improve the handling capacity and capacity of WLAN, improve WLAN's
Data transmission performance.
Preferably, WLAN full duplex transmission device 60 can also include receiving feedback module 601, receive feedback module 601
The transmission request sent suitable for receiving the first emission source, and feedback allows to send information to first emission source.
Preferably, data transmission blocks 603 may include the first transmission unit 6031 and the second transmission unit 6032.
Wherein, the first transmission unit 6031 is suitable for when starting to receive first data block, synchronously starts to send institute
The second data block is stated to first emission source；Second transmission unit 6032 is suitable in a part for receiving first data block
Afterwards, start to send second data block to first emission source.
Preferably, data transmission blocks 603 may include decoding unit 6033,6034 and of the first finish time determination unit
First data transmission unit 6035.Wherein, after decoding unit 6033 is suitable for receiving a part of first data block, decoding
A part of first data block, to obtain the sending duration of first data block；First finish time determined single
Member 6034 is suitable for determining first data block according to the transmission initial time and sending duration of first data block
Send finish time；First data transmission unit 6035 be suitable for before the transmission finish time of first data block, after
Continued access sends the second data block to first emission source together when receiving the remainder of first data block.
Further, decoding unit 6033 can also obtain the receiving end mark of first data block；First data hair
Sending unit 6035 can also include comparison subunit (not shown) and transmission sub-unit (not shown).Comparison subunit is suitable for institute
It states receiving end mark to be compared with self identification, to obtain comparison result；If transmission sub-unit is suitable for the comparison result
It indicates that the receiving end mark is consistent with self identification, then before the transmission finish time of first data block, is continuing
The second data block is sent when receiving the remainder of first data block together to first emission source.
Preferably, first data block is the continuous data block of sending time.
Preferably, at the beginning of carrying transmission opportunity in transmission request and the duration.
Further, data transmission blocks 603 may include the second finish time determination unit 6036 and the second data hair
Send unit 6037.Second finish time determination unit 6036 be suitable for be sent completely it is described allow send information after, according to described
At the beginning of transmission opportunity and the duration determines the finish time of the transmission opportunity；Second data transmission unit 6037,
Suitable at the beginning of the transmission opportunity and in the time range between finish time, when receiving first data block
The second data block is sent together to first emission source.
Preferably, the first instruction information is carried in the transmission request or first data block, to indicate subsequent work
Operation mode is full duplex.
Preferably, second indication information and given threshold are carried in the transmission request or first data block, it is described
Second indication information estimates to indicate that the transmitting terminal of the second data block receives power to it, and big in the reception power
Second data block is sent after the given threshold.
Preferably, first data block include data and for the second data block transmitting terminal send data really
Recognize, second data block includes the confirmation of data and the data sent for the first emission source.
Working principle, more contents of working method about the WLAN full duplex transmission device 60, are referred to pair
The associated description of Fig. 1 to Fig. 5, which is not described herein again.
The embodiment of the invention also discloses a kind of readable storage medium storing program for executing, are stored thereon with computer instruction, the computer
The step of WLAN full duplex transmission method shown in Fig. 1 can be executed when instruction operation.The storage medium may include
ROM, RAM, disk or CD etc..
The embodiment of the invention also discloses a kind of terminal, the terminal may include memory and processor, the storage
The computer instruction that can be run on the processor is stored on device.The processor can be with when running the computer instruction
The step of executing WLAN full duplex transmission method shown in Fig. 1.The terminal includes but is not limited to mobile phone, computer, plate
The terminal devices such as computer.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (26)
1. a kind of WLAN full duplex transmission method characterized by comprising
Receive the first data block of the first emission source transmission；
The second data block is sent together when receiving first data block to first emission source.
2. WLAN full duplex transmission method according to claim 1, which is characterized in that described to receive first data
Sending the second data block to first emission source when block together includes:
When starting to receive first data block, synchronously start to send second data block to first emission source；
Alternatively, starting to send second data block to first emission source after a part for receiving first data block.
3. WLAN full duplex transmission method according to claim 1, which is characterized in that described to receive first data
Sending the second data block to first emission source when block together includes:
After a part for receiving first data block, a part of first data block is decoded, to obtain described first
The sending duration of data block；
The transmission knot of first data block is determined according to the transmission initial time and sending duration of first data block
The beam moment；
Before the transmission finish time of first data block, when continuing to the remainder of first data block one
And the second data block is sent to first emission source.
4. WLAN full duplex transmission method according to claim 3, which is characterized in that the one of decoding first data block
The receiving end mark of first data block is also obtained behind part；The transmission finish time in first data block it
Before, the second data block is sent together when continuing to the remainder of first data block to the first emission source packet
It includes:
The receiving end is identified and is compared with self identification, to obtain comparison result；
If the comparison result indicates that the receiving end mark is consistent with self identification, in the transmission of first data block
Before finish time, the second data block is sent together when continuing to the remainder of first data block to described first
Emission source.
5. WLAN full duplex transmission method according to claim 1, which is characterized in that first data block is when sending
Between continuous data block.
6. WLAN full duplex transmission method according to claim 1, which is characterized in that the first emission source of the reception is sent
The first data block before further include:
The transmission request that first emission source is sent is received, and feedback allows to send information to first emission source.
7. WLAN full duplex transmission method according to claim 6, which is characterized in that carry biography in the transmission request
At the beginning of defeated chance and the duration.
8. WLAN full duplex transmission method according to claim 7, which is characterized in that described to receive first data
Sending the second data block to first emission source when block together includes:
Be sent completely it is described allow send information after, according at the beginning of the transmission opportunity and the duration determine described in
The finish time of transmission opportunity；
At the beginning of the transmission opportunity and in the time range between finish time, when receiving first data block
The second data block is sent together to first emission source.
9. WLAN full duplex transmission method according to claim 6, which is characterized in that the transmission request or described first
The first instruction information is carried in data block, to indicate subsequent operating mode as full duplex.
10. WLAN full duplex transmission method according to claim 6, which is characterized in that transmission request or described the
Second indication information and given threshold, transmitting of the second indication information to indicate the second data block are carried in one data block
End receives power to it and estimates, and sends second data block after the reception power is greater than the given threshold.
11. WLAN full duplex transmission method according to claim 6, which is characterized in that transmission request or described the
Third is carried in one data block indicates information, the first transmission power of the first given threshold and first emission source, described the
Three instruction information to indicate the transmitting terminal of the second data block calculate its second receive the difference of power and the second transmission power with
First comparison result of the second given threshold, and calculate the first of first emission source and receive power and first transmitting
Second comparison result of the difference of power and first given threshold, and according to first comparison result and second ratio
Relatively result determines whether to send second data block.
12. WLAN full duplex transmission method according to claim 1, which is characterized in that first data block includes number
According to the confirmation of the data sent with the transmitting terminal for the second data block, second data block includes data and sends out for first
Penetrate the confirmation of the data of source transmission.
13. a kind of WLAN full duplex transmission device characterized by comprising
Data reception module, the first data block sent suitable for receiving the first emission source；
Data transmission blocks, suitable for sending the second data block together when receiving first data block to first transmitting
Source.
14. WLAN full duplex transmission device according to claim 13, which is characterized in that the data transmission blocks packet
It includes:
First transmission unit sends second data block suitable for synchronously starting when starting to receive first data block
To first emission source；
Second transmission unit, suitable for starting to send second data block extremely after a part for receiving first data block
First emission source.
15. WLAN full duplex transmission device according to claim 14, which is characterized in that the data transmission blocks packet
It includes:
Decoding unit after a part suitable for receiving first data block, decodes a part of first data block, with
Obtain the sending duration of first data block；
First finish time determination unit, suitable for true according to the transmission initial time and sending duration of first data block
The transmission finish time of fixed first data block；
First data transmission unit, suitable for continuing to described before the transmission finish time of first data block
The second data block is sent when the remainder of one data block together to first emission source.
16. WLAN full duplex transmission device according to claim 15, which is characterized in that the decoding unit also obtains institute
State the receiving end mark of the first data block；First data transmission unit includes:
Comparison subunit is compared, to obtain comparison result with self identification suitable for identifying the receiving end；
Transmission sub-unit, if being suitable for the comparison result indicates that the receiving end mark is consistent with self identification, described
Before the transmission finish time of first data block, second is sent together when continuing to the remainder of first data block
Data block is to first emission source.
17. WLAN full duplex transmission device according to claim 13, which is characterized in that first data block is to send
The data block of Time Continuous.
18. WLAN full duplex transmission device according to claim 13, which is characterized in that further include:
Feedback module is received, the transmission request sent suitable for receiving first emission source, and feedback allows to send information to institute
State the first emission source.
19. WLAN full duplex transmission device according to claim 18, which is characterized in that carried in the transmission request
At the beginning of transmission opportunity and the duration.
20. WLAN full duplex transmission device according to claim 19, which is characterized in that the data transmission blocks packet
It includes:
Second finish time determination unit, suitable for be sent completely it is described allow send information after, according to the transmission opportunity
Start time and duration determine the finish time of the transmission opportunity；
Second data transmission unit, suitable at the beginning of the transmission opportunity and in the time range between finish time,
The second data block is sent together when receiving first data block to first emission source.
21. WLAN full duplex transmission device according to claim 18, which is characterized in that transmission request or described the
The first instruction information is carried in one data block, to indicate subsequent operating mode as full duplex.
22. WLAN full duplex transmission device according to claim 18, which is characterized in that transmission request or described the
Second indication information and given threshold, transmitting of the second indication information to indicate the second data block are carried in one data block
End receives power to it and estimates, and sends second data block after the reception power is greater than the given threshold.
23. WLAN full duplex transmission device according to claim 18, which is characterized in that transmission request or described the
Third is carried in one data block indicates information, the first transmission power of the first given threshold and first emission source, described the
Three instruction information to indicate the transmitting terminal of the second data block calculate its second receive the difference of power and the second transmission power with
First comparison result of the second given threshold, and calculate the first of first emission source and receive power and first transmitting
Second comparison result of the difference of power and the first given threshold, and knot is compared according to first comparison result and described second
Fruit determines whether to send second data block.
24. WLAN full duplex transmission device according to claim 13, which is characterized in that first data block includes number
According to the confirmation of the data sent with the transmitting terminal for the second data block, second data block includes data and sends out for first
Penetrate the confirmation of the data of source transmission.
25. a kind of readable storage medium storing program for executing, is stored thereon with computer instruction, which is characterized in that when the computer instruction is run
The step of WLAN full duplex transmission method described in any one of perform claim requirement 1 to 12.
26. a kind of terminal, including memory and processor, the meter that can be run on the processor is stored on the memory
Calculation machine instruction, which is characterized in that perform claim requires any one of 1 to 12 institute when the processor runs the computer instruction
The step of stating WLAN full duplex transmission method.
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| CN201710606331.3A CN109302274A (en) | 2017-07-24 | 2017-07-24 | WLAN full duplex transmission method and device, readable storage medium storing program for executing, terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710606331.3A CN109302274A (en) | 2017-07-24 | 2017-07-24 | WLAN full duplex transmission method and device, readable storage medium storing program for executing, terminal |
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| US20120282982A1 (en) * | 2011-05-02 | 2012-11-08 | Mujtaba Syed A | Electronic device with idle mode antenna switching |
| CN104919878A (en) * | 2013-01-09 | 2015-09-16 | 夏普株式会社 | Terminal device and base station device |
| CN104717760A (en) * | 2013-12-13 | 2015-06-17 | 中兴通讯股份有限公司 | Full-duplex transmission establishing and releasing mechanism |
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Application publication date: 20190201 |