CN105960814B - A kind of Wireless Fidelity WiFi retransmission method and device - Google Patents
A kind of Wireless Fidelity WiFi retransmission method and device Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
- H04W28/20—Negotiating bandwidth
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Abstract
The present invention relates to fields of communication technology, more particularly to a kind of WiFi retransmission method and device, in this scenario, after transmitting terminal detects idle WiFi channel, it can be used by sending these idle WiFi channel transmitting terminals of data sending request message informing receiving end on idle WiFi channel, and WiFi return path is further determined from the idle WiFi channel that transmitting terminal detects in receiving end, then, at least two discrete WiFi channel data packets of the transmitting terminal in the WiFi return path that receiving end is determined, even if specified WiFi channel is discontinuous, it can also be transmitted, therefore, improve the utilization rate and efficiency of transmission of resource.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of WiFi retransmission methods and device.
Background technique
Technology is as a kind of short-distance wireless communication technology by WiFi (Wireless Fidelity, Wireless Fidelity), due to it
Free frequency spectrum, the advantages that transmission rate is high, have been widely used.For example, being provided with AP in airport, restaurant, meeting room
Under the scene of (Access Point, access point), WiFi equipment accesses network by AP；For another example in no field for setting up AP
Under scape, by the direct communication between WiFi equipment, realize that data are shared and various businesses between each WiFi equipment
It uses, i.e., realizes communication between WiFi equipment.
Currently, in WiFi system, including STA (Station, website, i.e. WiFi user), AP, AC (Access
Controller, access controller), BRAS (Broadband Remote Application Server, broad band remote access
Server), critical point server (Portal Server), RADIUS (Remote Authentication Dial-in User
Service, distally with dialling in the service for checking credentials) etc. nodes, WiFi system networking schematic diagram it is as shown in Figure 1.
In the prior art, the passback of network partially refers to the transmission channel between core net or backbone network and base station, is returning
Part is passed by the way of wireless communication, specifically often using the frequency spectrum of authorization during realization, still, due to the frequency of authorization
Spectrum is limited, therefore, insufficient in order to solve the problems, such as to face authorization frequency spectrum, proposes the WiFi progress using unlicensed spectrum
Passback, referred to as WiFi passback.
In the prior art, when WiFi is returned, lower, the lower defect of efficiency of transmission that there are resource utilizations.
Summary of the invention
The embodiment of the present invention provides a kind of method and device of WiFi passback, to solve resource existing in the prior art
The problem that utilization rate is lower, efficiency of transmission is lower.
Specific technical solution provided in an embodiment of the present invention is as follows:
In a first aspect, providing a kind of Wireless Fidelity WiFi retransmission method, comprising:
Idle WiFi channel is detected, and sends data transmission to receiving end on the idle WiFi channel detected and asks
Seek message；
It receives the data transmission that the receiving end is sent to reply message, and data transmission is replied message occupied
WiFi channel is as WiFi return path；
In at least two discrete WiFi channel data packets of the WiFi return path.
With reference to first aspect, in the first possible implementation, the data sending request message includes sending
To the size information of the data packet of the receiving end.
The possible implementation of with reference to first aspect the first, in the second possible implementation, described in reception
After the data transmission that receiving end is sent replies message, further includes:
Duration required for determining the transmission data packet is replied message according to data transmission；
In two discrete WiFi channel data packets of the WiFi return path, specifically include:
In two discrete WiFi channel data packets of the WiFi return path in the duration.
With reference to first aspect or the first to second possible implementation of first aspect, possible at the third
In implementation, the data sending request message is that request sends RTS message, and the data transmission replies message to eliminate hair
Send CTS message.
Second aspect provides a kind of Wireless Fidelity WiFi retransmission method, comprising:
Receive the data sending request message that transmitting terminal is sent on idle WiFi channel；
WiFi return path is determined in the occupied WiFi channel of data sending request message from receiving, and described
Data transmission is sent to the transmitting terminal on WiFi return path to reply message；
Receive at least two discrete WiFi channels of the transmitting terminal in the WiFi return path
Data packet.
In conjunction with second aspect, in the first possible implementation, the data sending request message includes the hair
The size information of the sending end data packet to be sent.
In conjunction with the first possible implementation of second aspect, in the second possible implementation, described in reception
After the data sending request message that transmitting terminal is sent, further includes:
Measure the channel quality indicator CQI information of the WiFi return path；
It is determined according to the size information of the transmitting terminal data packet to be sent, the CQI information and receives the number
According to the duration of packet；
Receive at least two discrete WiFi channels of the transmitting terminal in the WiFi return path
Data packet specifically includes:
At least two discrete WiFis of the transmitting terminal in the WiFi return path are received in the duration
The data packet of channel.
It is possible at the third in conjunction with the first to second possible implementation of second aspect or second aspect
In implementation, the data sending request message is that request sends RTS message, and the data transmission replies message to eliminate hair
Send CTS message.
The third aspect provides a kind of Wireless Fidelity WiFi return device, comprising:
Transmission unit, for detecting idle WiFi channel, and to receiving end on the idle WiFi channel detected
Send data sending request message；
Receiving unit replies message for receiving the data transmission that the receiving end is sent, and the data is sent back
The multiple occupied WiFi channel of message is as WiFi return path；
Transmission unit, at least two discrete WiFi channel data in the WiFi return path
Packet.
In conjunction with the third aspect, in the first possible implementation, the data sending request that the transmission unit is sent
Message includes being sent to the size information of the data packet of the receiving end.
In conjunction with the first possible implementation of the third aspect, in the second possible implementation, the transmission
Unit is also used to:
Duration required for determining the transmission data packet is replied message according to data transmission；
The transmission unit is in two discrete WiFi channel data packets of the WiFi return path, tool
Body are as follows:
In two discrete WiFi channel data packets of the WiFi return path in the duration.
It is possible at the third in conjunction with the first to second possible implementation of the third aspect or the third aspect
In implementation, the data sending request message that the transmission unit is sent is that request sends RTS message, and the receiving unit connects
The data transmission of receipts replies message to eliminate and sending CTS message.
Fourth aspect provides a kind of Wireless Fidelity WiFi return device, comprising:
First receiving unit, the data sending request message sent on idle WiFi channel for receiving transmitting terminal；
Transmission unit, for determining WiFi passback from the reception occupied WiFi channel of data sending request message
Channel, and send data transmission to the transmitting terminal on the WiFi return path and reply message；
Second receiving unit, it is at least two discrete in the WiFi return path for receiving the transmitting terminal
The data packet of WiFi channel.
In conjunction with fourth aspect, in the first possible implementation, the data hair that first receiving unit receives
Sending request message includes the size information of the transmitting terminal data packet to be sent.
In conjunction with the first possible implementation of fourth aspect, in the second possible implementation, described second
Receiving unit is also used to:
Measure the channel quality indicator CQI information of the WiFi return path；
It is determined according to the size information of the transmitting terminal data packet to be sent, the CQI information and receives the number
According to the duration of packet；
Second receiving unit is to receive the transmitting terminal at least two discontinuous in the WiFi return path
WiFi channel data packet when, specifically:
At least two discrete WiFis of the transmitting terminal in the WiFi return path are received in the duration
The data packet of channel.
It is possible at the third in conjunction with the first to second possible implementation of fourth aspect or fourth aspect
In implementation, the data sending request message that first receiving unit receives is that request sends RTS message, the transmission
The data transmission that unit is sent replies message to eliminate and sending CTS message.
The present invention has the beneficial effect that:
In the prior art, transmitting terminal can only on continuous free time WiFi channel legend data packet, accordingly, there exist resource wave
Take, the lower situation of efficiency of transmission, in the embodiment of the present invention, detects idle WiFi channel, and in the free time detected
Data sending request message is sent to receiving end on WiFi channel；It receives receiving end transmission data transmission to reply message, and will connect
Receive data transmission when replying message occupied WiFi channel as WiFi return path, wherein WiFi return path is to connecing
Receiving end sends channel when data sending request message in occupied WiFi channel；At least two in WiFi return path are non-
Continuous WiFi channel data packet, in this scenario, transmitting terminal can be at least two non-companies of WiFi return path
Continuous WiFi channel data packet, though WiFi channel be it is discontinuous, can also be transmitted, this improves moneys
The utilization rate and efficiency of transmission in source.
Detailed description of the invention
Fig. 1 is the schematic diagram of WiFi networking in the embodiment of the present invention；
Fig. 2 is the first detail flowchart of WiFi passback in the embodiment of the present invention；
Fig. 3 is the second detail flowchart of WiFi passback in the embodiment of the present invention；
Fig. 4 is the first embodiment of WiFi passback in the embodiment of the present invention；
Fig. 5 is the second embodiment of WiFi passback in the embodiment of the present invention；
Fig. 6 is the first illustrative view of functional configuration of WiFi return device in the embodiment of the present invention；
Fig. 7 is the second illustrative view of functional configuration of WiFi return device in the embodiment of the present invention；
Fig. 8 is the first instance structural schematic diagram of WiFi return device in the embodiment of the present invention；
Fig. 9 is the second instance structural schematic diagram of WiFi return device in the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
All other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes
System, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, herein
Middle character "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or".
In the embodiment of the present invention, a kind of WiFi method of passback is provided, in this method: idle WiFi channel is detected, and
Data sending request message is sent to receiving end on the idle WiFi channel detected；It receives receiving end and sends data transmission
Reply message, and will receive data transmission when replying message occupied WiFi channel as WiFi return path, wherein WiFi
Return path is channel when sending data sending request message to receiving end in occupied WiFi channel；It returns and believes in WiFi
The discrete WiFi channel data packet of at least two of road, in this scenario, transmitting terminal can be in WiFi return path
At least two discrete WiFi channel data packets, even if WiFi channel be it is discontinuous, can also be transmitted,
This improves the utilization rate of resource and efficiencies of transmission.
The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing.
Embodiment one
As shown in fig.2, providing a kind of method of WiFi passback in the embodiment of the present invention, the detailed process of this method is such as
Under:
Step 200: detecting idle WiFi channel, and send number to receiving end on the idle WiFi channel detected
According to transmission request message；
Step 210: receiving receiving end transmission data transmission and reply message, and will receive shared when data transmission replies message
The WiFi channel used is as WiFi return path；
Step 220: at least two discrete WiFi channel data packets of WiFi return path.
In the embodiment of the present invention, data sending request message is sent to receiving end on the idle WiFi channel detected
When, data sending request message can be sent in multiple bandwidth, for example, there are four bandwidth, first bandwidth and second bands
Width is respectively 20M, and third bandwidth is that the 4th bandwidth of 40M is 80M.
In order to improve the utilization rate of frequency spectrum, in the embodiment of the present invention, the beginning and end of each bandwidth is adjustable.
For example, bandwidth 1 is A-B, bandwidth 2 is C-D, a point between C A, B, that is to say, that a part between C-D belongs to A-
The starting point and ending point of bandwidth 2 can be adjusted by B in order to improve the utilization rate of frequency spectrum.
In the embodiment of the present invention, data sending request message includes being sent to the size information of the data packet of receiving end,
In, the size information of data packet calculates the duration of transmission data packet for receiving end, and at the end of duration, receiving end be can receive
The data that other transmitting terminals are sent.
During the present invention is implemented, receiving end can calculate the duration of transmission data packet according to the size information of data packet, then,
The duration for the data packet calculated is carried and is sent to transmitting terminal in data transmission replies message by receiving end, therefore, is received
Further include operating as follows after the data transmission that receiving end is sent replies message:
Duration required for determining transmission data packet is replied message according to data transmission；
At this point, can be used as follows in two discrete WiFi channel data packets of WiFi return path
Mode, optional:
In two discrete WiFi channel data packets of WiFi return path in duration.
In the embodiment of the present invention, there are many forms for WiFi return path, and optionally, WiFi return path is to send out to receiving end
Channel when sending data sending request message in occupied WiFi channel.
In the embodiment of the present invention, there are many forms of data sending request message, for example, can be RTS (Request To
Send, request are sent) message, data send the form that replies message also there are many, for example, can be CTS (Clear To
Send, clear to send) message.
In the embodiment of the present invention, receiving end is receiving each data packet, and after being correctly decoded data packet, corresponding
ACK (ACKnowledge, correct response instruction) is replied for the data packet being correctly decoded on channel, which belongs to WiFi neck
The conventional techniques in domain, are no longer described in detail one by one herein.
In this scenario, after transmitting terminal detects idle WiFi channel, by each idle WiFi channel
Send data sending request message informing receiving end, these idle WiFi channel transmitting terminals can be used, and receiving end into
One step determines WiFi return path from the idle WiFi channel that transmitting terminal detects, then, transmitting terminal is true in receiving end
Two discrete WiFi channel data packets in the specified WiFi channel made, even if specified WiFi letter
Road be it is discontinuous, can also be transmitted, this improves the utilization rate of resource and efficiencies of transmission.
Embodiment two
As shown in fig.3, providing a kind of method of WiFi passback in the embodiment of the present invention, the detailed process of this method is such as
Under:
Step 300: receiving the data sending request message that transmitting terminal is sent on idle WiFi channel；
Step 310: WiFi return path is determined in the occupied WiFi channel of data sending request message from receiving, and
Data transmission is sent to transmitting terminal on WiFi return path to reply message；
Step 320: receiving at least two discrete WiFi channels of the transmitting terminal in WiFi return path
Data packet.
In the embodiment of the present invention, optionally, data sending request message includes the size of the transmitting terminal data packet to be sent
Information.
Further, in order to determine that transmitting terminal occupies the duration of at least two discrete WiFi channel transmission data packets,
Further include operating as follows after receiving the data sending request message that transmitting terminal is sent in the embodiment of the present invention:
Measure the channel quality indicator CQI information of WiFi return path；
The duration of received data packet is determined according to the size information of the transmitting terminal data packet to be sent, CQI information；
At this point, receiving the data of at least two discrete WiFi channels of the transmitting terminal in WiFi return path
Bao Shi is specifically as follows:
In at least two discrete WiFi channels of the inscribed transmitting-receiving sending end of duration in WiFi return path
Data packet.
In this way, specified WiFi channel can be released to the free time by receiving end, and then receive other at the end of the duration
The data packet that transmitting terminal is sent.
In the embodiment of the present invention, there are many forms of data sending request message, can be RTS message, together optionally
Reason, data send the form that replies message can also there are many, can be CTS message optionally.
In the embodiment of the present invention, transmitting terminal is being received after receiving data transmission and replying message in specified WiFi channel
Further include operating as follows after the data packet of upper transmission:
If being correctly decoded data packet, on the channel for receiving the data packet, to number transmitting terminal transmission and be correctly decoded
According to the corresponding ACK of packet.
In this scenario, after transmitting terminal detects idle WiFi channel, by sending number on idle WiFi channel
Notify receiving end according to request message is sent, these idle WiFi channel transmitting terminals can be used, and receiving end further from
WiFi return path is determined in the idle WiFi channel that transmitting terminal detects, then, transmitting terminal is determined in receiving end
At least two discrete WiFi channel data packets in WiFi return path, even if specified WiFi channel is
It is discontinuous, it can also be transmitted, this improves the utilization rate of resource and efficiencies of transmission.
What above-described embodiment one and embodiment two were told about is all the scheme of single-hop, and only embodiment is first is that from transmitting terminal
Angle description, embodiment is second is that from the description of the angle of receiving end, in practical applications it is also possible to there are multi-hop nodes, such as
3 nodes: node 1, node 2, node 3, if data transfer direction is 1 → node of node, 2 → node 3, then node 1 and node
2 when being communicated, and node 1 is used as transmitting terminal, and node 2 is used as receiving end, and when node 1 and node 2 are communicated, node 1 can be with
Step 200- step 220 is executed, node 2 can execute step 300- step 320, similarly, 2 are received after receiving data packet,
Data packet is also transmitted to node 3, at this point, node 2 and node 3 will be communicated, wherein node 2 is used as transmitting terminal, node
3 are used as receiving end, and node 2 still can execute step 200- step 220, and node 3 can execute step 300- step 320,.
Certainly, in practical applications, there may be the node greater than three, at this point, the adjacent node of any two is led to
When letter, transmitting terminal can execute step 200- step 220, and when as communicated between node n-1 and node n, node n-1 can be held
Row step 200- step 220, node n can execute step 300- step 320, when communicating between node n and node n+1, node n
Step 200- step 220 can also be executed, node n+1 can execute step 300- step 320.
When return path has multi-hop node, if node n has data cached packet, in order to reduce time delay, efficiency of transmission, section are improved
Point n can also send data packet to node n+1 while sending CTS message to node n-1；If node n is either with or without caching number
According to packet, then node n is after sending CTS message to node n-1, and receives the data packet of node n-1 transmission, just can be to node
N+1 sends data packet.
Certainly, if node n both receiving node n-1 send send data packet, meanwhile, also to node n+1 send data
Packet improves the accuracy of the data packet received in order to avoid interference, the data packet that the node n-1 that node n is received is sent
Frequency range, the frequency range with node n to node n+1 transmission data packet is different.
Concrete application scene is given below in embodiment for a better understanding of the present invention, for the process of WiFi passback, makees
It is described in further detail out, as shown in Figure 4:
Embodiment three
AP is directly accessed eNB (i.e. single-hop), shares 10 channels: channel 1, channel 2, channel 3 ..., channel 10, often
The bandwidth of one channel is 20M.
Step 400:AP detects that channel 1, channel 3, channel 8- channel 10 are idle WiFi channel；
Step 410:AP sends RTS to eNB respectively on channel 1, channel 3, channel 8- channel 10, wherein each RTS
The middle size for carrying data packet to be sent；
After step 420:eNB receives RTS on channel 1, channel 3, channel 8- channel 10 respectively, determine that AP can be used
Channel 1, channel 3, channel 8- channel 10 transmit data packet, and determine from channel 1, channel 3, channel 8- channel 10 channel 1,
Channel 3, channel 8, after sending RTS without other AP in channel 10, by channel 1, channel 3, channel 8, channel 10 as specifying
WiFi channel；
Step 430:eNB measures the CQI of channel 1, channel 3, channel 8, channel 10 respectively, and according to the size of data packet and
CQI determines the duration of AP transmission data packet；
Step 440:eNB is equal into AP transmission CTS, each CTS respectively on channel 1, channel 3, channel 8, channel 10
Carry the duration determined；
Step 450:AP is transmitted to eNB on channel 1, channel 3, channel 8, channel 10 respectively simultaneously in above-mentioned duration
Data packet；
Step 460:AP receives data packet, and after being correctly decoded, and replys ACK on corresponding channel for the data packet.
Example IV
AP1 accesses eNB (i.e. double bounce) by AP2, shares 10 channels: channel 1, channel 2, channel 3 ..., channel
10, the bandwidth of each channel is 20M.
Step 500:AP1 detects that channel 1, channel 3, channel 8- channel 10 are idle WiFi channel；
Step 510:AP1 sends RTS to AP2 respectively on channel 1, channel 3, channel 8- channel 10, wherein each
The size of data packet to be sent is carried in RTS；
After step 520:AP2 receives RTS on channel 1, channel 3, channel 8- channel 10 respectively, determine that AP1 can make
Data packet is transmitted, and is determined channel from channel 1, channel 3, channel 8- channel 10 with channel 1, channel 3, channel 8- channel 10
1, channel 3, channel 8, send RTS without other AP in channel 10 after, by channel 1, channel 3, channel 8, channel 10 as with AP1 pairs
The specified WiFi channel answered；
Step 530:AP2 measures the CQI of channel 1, channel 3, channel 8, channel 10 respectively, and according to the size of data packet and
CQI determines the duration of AP transmission data packet；
Step 540:AP2 is equal into AP1 transmission CTS, each CTS respectively on channel 1, channel 3, channel 8, channel 10
Carry the duration determined；
Step 550:AP1 is transmitted to AP2 on channel 1, channel 3, channel 8, channel 10 respectively simultaneously in above-mentioned duration
Data packet；
Step 560:AP2 receives data packet, and after being correctly decoded, and replys ACK on corresponding channel for the data packet；
Step 570:AP2 detects that channel 4- channel 6 is idle WiFi channel, and on channel 4- channel 6 respectively to
ENB sends RTS；
Step 580:eNB filters out channel 5 from channel 4- channel 6, channel 6 is specified WiFi letter corresponding with AP2
Road, and CTS is sent to AP2 respectively on channel 5, channel 6；
After step 590:AP2 receives CTS, data packet is sent to eNB on channel 5, channel 6 respectively；
After step 600:eNB is correctly decoded data packet, ACK is sent for the data packet to AP2 on corresponding channel.
Based on the above-mentioned technical proposal, as shown in fig.6, the embodiment of the present invention provides a kind of WiFi return device, the WiFi
Return device includes transmission unit 60, receiving unit 61, transmission unit 62, in which:
Transmission unit 60, for detecting idle WiFi channel, and to reception on the idle WiFi channel detected
End sends data sending request message；
Receiving unit 61, the data transmission for receiving receiving end transmission replies message, and sends data back to multiple message
Occupied WiFi channel is as WiFi return path；
Transmission unit 62, at least two discrete WiFi channel data packets in WiFi return path.
In the embodiment of the present invention, optionally, the data sending request message that transmission unit 60 is sent includes being sent to connect
The size information of the data packet of receiving end.
In the embodiment of the present invention, further, transmission unit 62 is also used to:
Duration required for determining transmission data packet is replied message according to data transmission；
In the embodiment of the present invention, optionally, two discrete WiFi channels of the transmission unit 62 in WiFi return path
When transmitting data packet, specifically:
In two discrete WiFi channel data packets of WiFi return path in duration.
In the embodiment of the present invention, optionally, the data sending request message that transmission unit 60 is sent is that request transmission RTS disappears
Breath, the transmission of the received data of receiving unit 61 reply message to eliminate and send CTS message.
Based on the above-mentioned technical proposal, as shown in fig.7, the embodiment of the present invention provides a kind of WiFi return device, the WiFi
Return device includes the first receiving unit 70, transmission unit 71, the second receiving unit 72, in which:
First receiving unit 70 disappears for receiving the data sending request that transmitting terminal is sent on idle WiFi channel
Breath；
Transmission unit 71, for determining WiFi passback letter from the reception occupied WiFi channel of data sending request message
Road, and send data transmission to transmitting terminal on WiFi return path and reply message；
Second receiving unit 72, for receiving at least two discrete WiFi letters of the transmitting terminal in WiFi return path
The data packet transmitted on road.
In the embodiment of the present invention, optionally, the data sending request message that the first receiving unit 70 receives includes sending
Hold the size information for the data packet to be sent.
In the embodiment of the present invention, further, the second receiving unit 72 is also used to:
Measure the CQI information of WiFi return path；
The duration of received data packet is determined according to the size information of the transmitting terminal data packet to be sent, CQI information；
In the embodiment of the present invention, optionally, the second receiving unit 72 receive transmitting terminal in WiFi return path extremely
When the data packet of few two discrete WiFi channels, specifically:
In at least two discrete WiFi channels of the inscribed transmitting-receiving sending end of duration in WiFi return path
Data packet.
In the embodiment of the present invention, optionally, the data sending request message that the first receiving unit 70 receives disappears for RTS
Breath, the data transmission that transmission unit 71 is sent reply message as CTS message.
As shown in figure 8, being the entity apparatus figure of WiFi return device provided in an embodiment of the present invention, WiFi return device packet
Include at least one processor 801, communication bus 802, memory 803 and at least one communication interface 804.
Wherein, communication bus 802 is for realizing connecting and communicating between said modules, communication interface 804 be used for it is outer
Portion's equipment connects and communicates.
Wherein, for storing the program code needed to be implemented, these program codes can specifically include memory 803: hair
Unit 8031, receiving unit 8032 and transmission unit 8033 are sent, when said units are executed by processor 801, realizes following function
Can:
Transmission unit 8031, for detecting idle WiFi channel, and to connecing on the idle WiFi channel detected
Receiving end sends data sending request message；
Receiving unit 8032, the data transmission for receiving receiving end transmission replies message, and sends data back to and disappear again
Occupied WiFi channel is ceased as WiFi return path；
Transmission unit 8033, at least two discrete WiFi channel data in WiFi return path
Packet.
As shown in figure 9, being the entity apparatus figure of WiFi return device provided in an embodiment of the present invention, WiFi return device packet
Include at least one processor 901, communication bus 902, memory 903 and at least one communication interface 904.
Wherein, communication bus 902 is for realizing connecting and communicating between said modules, communication interface 904 be used for it is outer
Portion's equipment connects and communicates.
Wherein, for storing the program code needed to be implemented, these program codes can specifically include memory 903: the
One receiving unit 9031, transmission unit 9032 and the second receiving unit 9033, it is real when said units are executed by processor 901
Existing following function:
First receiving unit 9031 disappears for receiving the data sending request that transmitting terminal is sent on idle WiFi channel
Breath；
Transmission unit 9033, for determining WiFi passback from the reception occupied WiFi channel of data sending request message
Channel, and send data transmission to transmitting terminal on WiFi return path and reply message；
Second receiving unit 9034, for receiving at least two discrete WiFis of the transmitting terminal in WiFi return path
The data packet of channel.
In conclusion in a kind of WiFi passback provided in the embodiment of the present invention: detecting idle WiFi channel, and examining
Data sending request message is sent to receiving end on the idle WiFi channel measured；The data that receiving end is sent are received to send back
Multiple message, and the occupied WiFi channel of multiple message is sent data back to as WiFi return path；In WiFi return path
At least two discrete WiFi channel data packets, in this scenario, transmitting terminal can WiFi return path extremely
Few two discrete WiFi channel data packets, though WiFi channel be it is discontinuous, can also be transmitted, because
This, improves the utilization rate and efficiency of transmission of resource.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device of present one or more flows of the flowchart and/or the function in one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
Function in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (16)
1. a kind of Wireless Fidelity WiFi retransmission method characterized by comprising
Idle WiFi channel is detected, and sends data sending request to receiving end on the idle WiFi channel detected and disappears
Breath；
It receives the data transmission that the receiving end is sent to reply message, and data transmission is replied message into occupied WiFi
Channel is as WiFi return path；
In at least two discrete WiFi channel data packets of the WiFi return path.
2. the method as described in claim 1, which is characterized in that the data sending request message includes being sent to described connect
The size information of the data packet of receiving end.
3. method according to claim 2, which is characterized in that receive the data transmission that the receiving end is sent and reply message it
Afterwards, further includes:
Duration required for determining the transmission data packet is replied message according to data transmission；
In two discrete WiFi channel data packets of the WiFi return path, specifically include:
In two discrete WiFi channel data packets of the WiFi return path in the duration.
4. the method according to claim 1, which is characterized in that the data sending request message is that request is sent
RTS message, the data transmission reply message to eliminate and sending CTS message.
5. a kind of Wireless Fidelity WiFi retransmission method characterized by comprising
Receive the data sending request message that transmitting terminal is sent on idle WiFi channel；
WiFi return path is determined in the occupied WiFi channel of data sending request message from receiving, and in the WiFi
Data transmission is sent to the transmitting terminal on return path to reply message；
Receive the data of at least two discrete WiFi channels of the transmitting terminal in the WiFi return path
Packet.
6. method as claimed in claim 5, which is characterized in that the data sending request message includes that the transmitting terminal will be sent out
The size information for the data packet sent.
7. method as claimed in claim 6, which is characterized in that receive data sending request message that the transmitting terminal is sent it
Afterwards, further includes:
Measure the channel quality indicator CQI information of the WiFi return path；
It is determined according to the size information of the transmitting terminal data packet to be sent, the CQI information and receives the data packet
Duration；
Receive the data of at least two discrete WiFi channels of the transmitting terminal in the WiFi return path
Packet, specifically includes:
At least two discrete WiFi channels of the transmitting terminal in the WiFi return path are received in the duration
The data packet of upper transmission.
8. such as the described in any item methods of claim 5-7, which is characterized in that the data sending request message is that request is sent
RTS message, the data transmission reply message to eliminate and sending CTS message.
9. a kind of Wireless Fidelity WiFi return device characterized by comprising
Transmission unit is sent for detecting idle WiFi channel, and on the idle WiFi channel detected to receiving end
Data sending request message；
Receiving unit replies message for receiving the data transmission that the receiving end is sent, and the data is sent to reply and are disappeared
Occupied WiFi channel is ceased as WiFi return path；
Transmission unit, at least two discrete WiFi channel data packets in the WiFi return path.
10. device as claimed in claim 9, which is characterized in that the data sending request message package that the transmission unit is sent
Include the size information that be sent to the data packet of the receiving end.
11. device as claimed in claim 10, which is characterized in that the transmission unit is also used to:
Duration required for determining the transmission data packet is replied message according to data transmission；
The transmission unit is in two discrete WiFi channel data packets of the WiFi return path, specifically
Are as follows:
In two discrete WiFi channel data packets of the WiFi return path in the duration.
12. such as the described in any item devices of claim 9-11, which is characterized in that the data transmission that the transmission unit is sent is asked
Message is asked to send RTS message for request, the received data transmission of receiving unit replies message to eliminate and sending CTS message.
13. a kind of Wireless Fidelity WiFi return device characterized by comprising
First receiving unit, the data sending request message sent on idle WiFi channel for receiving transmitting terminal；
Transmission unit, for determining WiFi passback letter from the reception occupied WiFi channel of data sending request message
Road, and send data transmission to the transmitting terminal on the WiFi return path and reply message；
Second receiving unit, for receiving at least two discrete WiFis of the transmitting terminal in the WiFi return path
The data packet of channel.
14. device as claimed in claim 13, which is characterized in that the data sending request that first receiving unit receives
Message includes the size information of the transmitting terminal data packet to be sent.
15. device as claimed in claim 14, which is characterized in that second receiving unit is also used to:
Measure the channel quality indicator CQI information of the WiFi return path；
It is determined according to the size information of the transmitting terminal data packet to be sent, the CQI information and receives the data packet
Duration；
Second receiving unit is to receive the transmitting terminal at least two discrete in the WiFi return path
When the data packet of WiFi channel, specifically:
At least two discrete WiFi channels of the transmitting terminal in the WiFi return path are received in the duration
The data packet of upper transmission.
16. such as the described in any item devices of claim 13-15, which is characterized in that the number that first receiving unit receives
It is that request sends RTS message according to request message is sent, the data transmission that the transmission unit is sent replies message to eliminate and sending
CTS message.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/078215 WO2015176291A1 (en) | 2014-05-23 | 2014-05-23 | Wireless fidelity wifi back haul method and device |
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| Publication Number | Publication Date |
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| CN105960814A CN105960814A (en) | 2016-09-21 |
| CN105960814B true CN105960814B (en) | 2019-09-20 |
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| WO (1) | WO2015176291A1 (en) |
Cited By (1)
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| CN105960814A (en) | 2016-09-21 |
| WO2015176291A1 (en) | 2015-11-26 |
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