CN109413703A - Transmission method, site apparatus, the readable medium of WLAN data - Google Patents
Transmission method, site apparatus, the readable medium of WLAN data Download PDFInfo
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- CN109413703A CN109413703A CN201810747965.5A CN201810747965A CN109413703A CN 109413703 A CN109413703 A CN 109413703A CN 201810747965 A CN201810747965 A CN 201810747965A CN 109413703 A CN109413703 A CN 109413703A
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- wlan
- data packet
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- auxiliary channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0289—Congestion control
Abstract
A kind of transmission method of WLAN data, site apparatus, readable medium, the transmission method of the WLAN data include: to receive the data packet that AP is sent using the main channel of WLAN；Based on the data packet that the AP is sent, the resource unit of transmission WLAN data is obtained, the resource unit is the corresponding resource unit of auxiliary channel of WLAN；The auxiliary channel of the WLAN is switched to, and the corresponding resource unit of auxiliary channel based on the WLAN, transmits WLAN data.Using above scheme, the STA for only the supporting 20MHz auxiliary channel transmission WLAN data for switching to WLAN can be improved into the capacity of wlan system to alleviate congestion in the main channel congestion of WLAN.
Description
Technical field
The present embodiments relate to the communications field more particularly to a kind of transmission methods of WLAN data, site apparatus, readable
Medium.
Background technique
In WLAN (Wireless Local Area Network, WLAN) system, wireless site equipment
(Station, STA) is communicated by access point apparatus (Access Point, AP) with other equipment.Wlan system is supported
The configuration of the various bandwidths such as 20MHz, 40MHz, 80MHz.
Institute of Electrical and Electric Engineers industrial specification (Institute of Electrical and Electronics
Engineers, IEEE) 802.11ax define only support 20MHz STA (20MHz only STA), for only supporting 20MHz
STA, only allow using the 20MHz in wlan system main channel (Primary Channel) send data and receive data.
In existing technology, for supporting 40MHz, 80MHz etc. to be greater than the wlan system of 20MHz bandwidth, when only supporting
When the STAs of 20MHz is more, due to only supporting the STA of 20MHz that can only send data using the main channel of WLAN and receiving data,
Therefore will lead to the main channel congestion of wlan system, wlan system capacity is lower.
Summary of the invention
The technical issues of embodiment of the present invention solves is how to improve the capacity of wlan system.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of corresponding WLAN data of STA for only supporting 20MHz
Transmission method, comprising: utilize WLAN main channel receive AP send data packet；Based on the data packet that the AP is sent, obtain
The resource unit of transmission WLAN data is taken, the resource unit is the corresponding resource unit of auxiliary channel of WLAN；It switches to described
The auxiliary channel of WLAN, and the corresponding resource unit of auxiliary channel based on the WLAN transmit WLAN data.
Optionally, the data packet that the AP is sent are as follows: trigger frame；The transmission WLAN data includes: to send uplink WLAN
Data are to the AP.
Optionally, before the auxiliary channel for switching to the WLAN, further includes: sent using the main channel of the WLAN
Pre-HE lead data packet is to the AP.
Optionally, after sending uplink WLAN data to the AP, further includes: the main channel of the WLAN is switched to,
And using the main channel of the WLAN, the feedback data packet that the AP is sent is received.
Optionally, after sending uplink WLAN data to the AP, further includes: using the auxiliary channel of the WLAN, connect
Receive the feedback data packet that the AP is sent.
Optionally, the data packet that the AP is sent are as follows: downlink PPDU data packet；The data sent based on the AP
Packet obtains the resource unit of transmission WLAN data, comprising: the physical layer header information of parsing downlink PPDU, under obtaining for receiving
The resource unit of row PPDU, the corresponding resource list of the first auxiliary channel that the resource unit for receiving downlink PPDU is WLAN
Member；The transmission WLAN data includes: the downlink PPDU for receiving the AP and sending.
Optionally, the downlink PPDU data packet are as follows: downlink MU OFDMAPPDU data packet.
Optionally, after receiving the downlink PPDU that AP is sent, further includes: switch to the main channel of WLAN.
Optionally, after switching to the main channel of WLAN, further includes: using the main channel of the WLAN, send downlink
The corresponding feedback data packet of PPDU is to the AP.
Optionally, after receiving the PPDU that AP is sent, further includes: using the first auxiliary channel of the WLAN, under transmission
The corresponding feedback data packet of row PPDU is to the AP.
Optionally, the data packet sent based on the AP, obtains the resource unit of transmission WLAN data, further includes:
The physical layer header information for parsing downlink PPDU, obtains the resource unit for sending the corresponding feedback data packet of downlink PPDU, institute
State the corresponding resource unit of the second auxiliary channel that the resource unit for sending the corresponding feedback data packet of downlink PPDU is WLAN.
Optionally, after receiving the downlink PPDU that AP is sent, further includes: switch to the second auxiliary channel of WLAN, and benefit
With the second auxiliary channel of the WLAN, the corresponding feedback data packet of downlink PPDU is sent to the AP.
The embodiment of the present invention provides a kind of site apparatus for only supporting 20MHz, comprising: the first receiving unit is suitable for utilizing
The main channel of WLAN receives the data packet that AP is sent；First acquisition unit is obtained and is passed suitable for the data packet sent based on the AP
The resource unit of defeated WLAN data, the resource unit are the corresponding resource unit of auxiliary channel of WLAN；Transmission unit, suitable for cutting
The auxiliary channel of the WLAN is shifted to, and the corresponding resource unit of auxiliary channel based on the WLAN, transmits WLAN data.
Optionally, the data packet that the AP is sent are as follows: trigger frame；The transmission unit, suitable for switching to the WLAN's
Auxiliary channel, and the corresponding resource unit of auxiliary channel based on the WLAN send uplink WLAN data to the AP.
Optionally, the site apparatus for only supporting 20MHz further include: the 4th transmission unit is suitable for utilizing the WLAN
Main channel send Pre-HE lead data packet to the AP.
Optionally, the site apparatus for only supporting 20MHz further include: third receiving unit, it is described suitable for switching to
The main channel of WLAN, and using the main channel of the WLAN, receive the feedback data packet that the AP is sent.
Optionally, the site apparatus for only supporting 20MHz further include: the 4th receiving unit is suitable for utilizing the WLAN
Auxiliary channel, receive the feedback data packet that the AP is sent.
Optionally, the data packet that the AP is sent are as follows: downlink PPDU data packet；The first acquisition unit is suitable for parsing
The physical layer header information of downlink PPDU obtains the resource unit for receiving downlink PPDU, the resource for receiving downlink PPDU
Unit is the corresponding resource unit of the first auxiliary channel of WLAN；The transmission unit, suitable for switching to the auxiliary channel of the WLAN,
And the corresponding resource unit of auxiliary channel based on the WLAN, receive the downlink PPDU that the AP is sent.
Optionally, the downlink PPDU data packet are as follows: downlink MU OFDMAPPDU data packet.
Optionally, the site apparatus for only supporting 20MHz further include: switch unit, suitable for switching to the main letter of WLAN
Road.
Optionally, the site apparatus for only supporting 20MHz further include: the first transmission unit is suitable for utilizing the WLAN
Main channel, send the corresponding feedback data packet of downlink PPDU to the AP.
Optionally, the site apparatus for only supporting 20MHz further include: the second transmission unit is suitable for utilizing the WLAN
The first auxiliary channel, send the corresponding feedback data packet of downlink PPDU to the AP.
Optionally, the first acquisition unit is further adapted for parsing the physical layer header information of downlink PPDU, obtain for sending
The resource unit of the corresponding feedback data packet of downlink PPDU, it is described for sending the resource of the corresponding feedback data packet of downlink PPDU
Unit is the corresponding resource unit of the second auxiliary channel of WLAN.
Optionally, the site apparatus for only supporting 20MHz further include: third transmission unit, suitable for switching to WLAN's
Second auxiliary channel, and using the second auxiliary channel of the WLAN, the corresponding feedback data packet of downlink PPDU is sent to the AP.
The embodiment of the present invention provides a kind of computer readable storage medium, and computer readable storage medium is non-volatile deposits
Storage media or non-transitory storage media, are stored thereon with computer instruction, and the computer instruction executes any of the above-described when running
The step of kind the method.
The embodiment of the present invention provides a kind of site apparatus for only supporting 20MHz, including memory and processor, the storage
The computer instruction that can be run on the processor is stored on device, the processor executes when running the computer instruction
The step of any of the above-described kind of the method.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that
The data packet that AP is sent is received by the main channel using WLAN, the data packet of AP transmission is then based on, obtains and pass
The resource unit of defeated WLAN data, and the auxiliary channel of WLAN is switched to, WLAN data is transmitted, it can be in the main channel congestion of WLAN
When, the STA for only the supporting 20MHz auxiliary channel for switching to WLAN is transmitted into WLAN data, to alleviate congestion, improves wlan system
Capacity.
Detailed description of the invention
Fig. 1 is a kind of transmission method of corresponding WLAN data of STA for only supporting 20MHz provided in an embodiment of the present invention
Detail flowchart；
Fig. 2 is a kind of schematic diagram for sending upgoing O FDMA data provided in an embodiment of the present invention；
Fig. 3 is another schematic diagram for sending upgoing O FDMA data provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of another transmission upgoing O FDMA data provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of another transmission upgoing O FDMA data provided in an embodiment of the present invention；
Fig. 6 is a kind of schematic diagram for receiving downlink OFDMA data provided in an embodiment of the present invention；
Fig. 7 is another schematic diagram for receiving downlink OFDMA data provided in an embodiment of the present invention；
Fig. 8 is the schematic diagram of another reception downlink OFDMA data provided in an embodiment of the present invention；
Fig. 9 is the schematic diagram of another reception downlink OFDMA data provided in an embodiment of the present invention；
Figure 10 is a kind of structural schematic diagram of site apparatus for only supporting 20MHz provided in an embodiment of the present invention.
Specific embodiment
In existing technology, for supporting 40MHz, 80MHz etc. to be greater than the wlan system of 20MHz bandwidth, when only supporting
When the STAs of 20MHz is more, due to only supporting the STA of 20MHz that can only send data using the main channel of WLAN and receiving data,
Therefore will lead to the main channel congestion of wlan system, wlan system capacity is lower.
The embodiment of the present invention receives the data packet that AP is sent by the main channel using WLAN, is then based on the number of AP transmission
According to packet, the resource unit of transmission WLAN data is obtained, and switches to the auxiliary channel of WLAN, transmits WLAN data, it can be in WLAN
Main channel congestion when, the STA for only the supporting 20MHz auxiliary channel for switching to WLAN is transmitted into WLAN data, to alleviate congestion,
Improve the capacity of wlan system.
It is understandable to enable above-mentioned purpose of the invention, feature and beneficial effect to become apparent, with reference to the accompanying drawing to this
The specific embodiment of invention is described in detail.
Referring to Fig. 1, the embodiment of the invention provides a kind of transmission sides of corresponding WLAN data of STA for only supporting 20MHz
Method may include steps of:
Step S101 receives the data packet that AP is sent using the main channel of WLAN.
In specific implementation, for only supporting the STA of 20MHz, the main channel of the 20MHz in wlan system can only be used
(Primary Channel) sends data and receives data, therefore receives the number that AP is sent firstly the need of the main channel using WLAN
According to packet.
In specific implementation, when AP specifies STA to carry out the data transmission of up direction, the data packet that the AP is sent can
With are as follows: trigger frame (Trigger Frame)；When AP specifies STA to carry out the data transmission of down direction, the number of the AP transmission
It can be with according to packet are as follows: PLCP protocol Data Unit (PLCP Protocol Data Unit, PPDU) data packet of down physical layer,
Wherein PLCP is physical layer convergence process (Physical Layer Convergence Procedure, PLCP).
Further, when AP specifies STA to carry out the data transmission of down direction, data packet that the AP is sent can be with
Are as follows: descending multi-user (Multi-User, MU) orthogonal frequency division multiple access (Orthogonal Frequency Division
Multiple Access, OFDMA) PPDU data packet
Step S102 obtains the resource unit of transmission WLAN data, the resource list based on the data packet that the AP is sent
Member is the corresponding resource unit of auxiliary channel of WLAN.
In specific implementation, wlan system can support that multiple channels, i.e., multiple Band, each Band are a 20MHz letter
Road, only one of them channel are main channel.
For example, for the wlan system of 80MHz bandwidth, support Band0, tetra- channels of Band1, Band2 and Band3, often
The bandwidth of a channel is 20MHz, and it is main channel that AP, which can dominate Band0, and Band1, Band2 and Band3 are auxiliary channel
(Secondary Channel), can also assign Band1 is main channel, and Band0, Band2 and Band3 are auxiliary channel, can be with
Main channel and auxiliary channel are assigned based on other combinations, present example is with no restrictions.
In specific implementation, each 20MHz channel may include multiple resource units (Resource Unit).For example, root
According to the WLAN channel (Channel Bandwidth 20, CBW20) of current IEEE 802.11ax, each 20MHz, can be used
Resource unit (Resource Unit) can be 9 26-tone RU 4 52-tone RU or 2 106-
Tone RU or 1 242-tone RU, the corresponding resource unit of 4 WLAN channels (CBW80) can be 37 26-tone
RU or 16 52-tone RU or 8 106-tone RU or 4 242-tone RU.It is understood that having
It can also not constituted using other agreements, the constraint of above-mentioned IEEE 802.11ax agreement in body application and the present invention is protected
The limitation of range.
In specific implementation, for only supporting the STAs of 20MHz that can support multiple Band, i.e., in addition to supporting main channel
Outside, other auxiliary channels can also be supported, AP needs to know the channel that STA is supported, the channel then supported according to STA is based on institute
State data packet, the resource unit of instruction transmission WLAN data.
For example, for the wlan system of 80MHz bandwidth, support Band0, tetra- channels of Band1, Band2 and Band3, certain
It only supports the STA of 20MHz that can support { Band0, Band1 } two channels, can also support { Band1, Band2, Band3 } three
A channel can also support { Band0, Band1, Band2, Band3 } four channels.
In specific implementation, AP can suggest the channel that STA is supported by instruction, can also assign STA branch by instruction
The channel held, the embodiment of the present invention do not repeat them here.
It in specific implementation, can be via multiple groups local when only supporting the STA of 20MHz to support the channel width of 20MHz
Switching between oscillator (Local Oscillator, LO) is to realize the switching between main channel and auxiliary channel.
In specific implementation, when only supporting the STA of 20MHz to support biggish channel width (Channel Bandwidth),
For example, the mode that can use Digital Signal Processing (Digital Signal Processing) is come when 40MHz 80MHz
Realize the switching between main channel and auxiliary channel.
In specific implementation, the Digital Signal Processing can be digital filtering (Digital Filter), numerical frequency
(Digital Frequency Shift) etc. is converted, the embodiment of the present invention does not repeat them here.
Step S103 switches to the auxiliary channel of the WLAN, and the corresponding resource unit of auxiliary channel based on the WLAN,
Transmit WLAN data.
In specific implementation, the transmission WLAN data not only can be to send uplink WLAN data to the AP, but also can be with
To receive the downlink PPDU that the AP is sent.
In an embodiment of the present invention, the data packet that the AP is sent are as follows: trigger frame；The transmission WLAN data includes:
Uplink WLAN data is sent to the AP.
In specific implementation, the uplink WLAN data can be upgoing O FDMA data.
In specific implementation, after receiving the trigger frame of AP transmission, it can be immediately switched to the auxiliary channel of the WLAN,
It can also be when sending Pre- efficiently (High Efficiency, HE) leading (Preamble) data packet being to the AP, then switch
To the auxiliary channel of the WLAN.
In an embodiment of the present invention, before the auxiliary channel for switching to the WLAN, further includes: utilize the WLAN's
Main channel sends Pre-HE lead data packet to the AP.
In specific implementation, efficient-training domain (High in short-term in Pre-HE lead data packet can sent
Efficiency-Short Training Field, HE-STF) when switch to the auxiliary channel of the WLAN.
In specific implementation, when the corresponding resource unit of auxiliary channel based on the WLAN, uplink WLAN data is sent extremely
After the AP, the auxiliary channel of the WLAN can use, receive the feedback data packet that the AP is sent, can also switch to
The main channel of WLAN receives the feedback data packet that the AP is sent using the main channel of the WLAN.
In an embodiment of the present invention, after sending uplink WLAN data to the AP, further includes: switch to described
The main channel of WLAN, and using the main channel of the WLAN, receive the feedback data packet that the AP is sent.
In an embodiment of the present invention, after sending uplink WLAN data to the AP, further includes: utilize the WLAN
Auxiliary channel, receive the feedback data packet that the AP is sent.
In an embodiment of the present invention, the data packet that the AP is sent are as follows: downlink PPDU data packet；It is described to be based on the AP
The data packet of transmission obtains the resource unit of transmission WLAN data, comprising: the physical layer header (Physical of parsing downlink PPDU
Layer Header) information, the resource unit for receiving downlink PPDU is obtained, it is described for receiving the resource list of downlink PPDU
Member is the corresponding resource unit of the first auxiliary channel of WLAN；The transmission WLAN data includes: the downlink for receiving the AP and sending
PPDU。
In specific implementation, the downlink PPDU data packet can be downlink MU OFDMA PPDU data packet.
In specific implementation, the first auxiliary letter of the WLAN can be switched to when receiving the HE-STF in downlink PPDU
Road.
In specific implementation, it when the corresponding resource unit of the first auxiliary channel based on the WLAN, receives under AP transmission
After row PPDU, the first auxiliary channel of the WLAN can use, send the corresponding feedback data packet of downlink PPDU to the AP,
It can also be immediately switched to the main channel of WLAN, and using the main channel of the WLAN, send the corresponding feedback coefficient of downlink PPDU
According to packet to the AP.
In embodiments of the present invention, after receiving the downlink PPDU that AP is sent, currently used channel can also be cut
Shift to the main channel of WLAN.
In embodiments of the present invention, after switching to the main channel of WLAN, the main channel of the WLAN can also be utilized,
The corresponding feedback data packet of downlink PPDU is sent to the AP.
In embodiments of the present invention, after receiving the PPDU that AP is sent, the first auxiliary letter of the WLAN can also be utilized
Road sends the corresponding feedback data packet of downlink PPDU to the AP.
In specific implementation, other auxiliary channels of WLAN are also based on, the corresponding feedback data packet of downlink PPDU is sent.
In an embodiment of the present invention, the data packet sent based on the AP, obtains the resource of transmission WLAN data
Unit, further includes: the physical layer header information of parsing downlink PPDU is obtained for sending the corresponding feedback data packet of downlink PPDU
Resource unit, the second auxiliary channel that the resource unit for sending the corresponding feedback data packet of downlink PPDU is WLAN are corresponding
Resource unit.
In embodiments of the present invention, after receiving the downlink PPDU that AP is sent, currently used channel can also be cut
The second auxiliary channel of WLAN is shifted to, and using the second auxiliary channel of the WLAN, sends the corresponding feedback data packet of downlink PPDU
To the AP.
Using above scheme, the data packet that AP is sent is received by the main channel using WLAN, is then based on AP transmission
Data packet obtains the resource unit of transmission WLAN data, and switches to the auxiliary channel of the WLAN, transmits WLAN data, can be with
In the main channel congestion of WLAN, the STA for only the supporting 20MHz auxiliary channel for switching to WLAN is transmitted into WLAN data, thus slow
Congestion is solved, the capacity of wlan system is improved.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides a kind of transmissions
The schematic diagram of upgoing O FDMA data, as shown in Figure 2.
Referring to fig. 2, wlan system supports 4 channels, is respectively as follows: Band0, Band1, Band2 and Band3, wherein Band0
For main channel, Band1, Band2 and Band3 are auxiliary channel.
The process for only supporting the STA of 20MHz to send upgoing O FDMA data is as follows:
1, the trigger frame that AP is sent, and the trigger frame sent based on AP are received, is obtained Band0 (utilizing Band0) first
Taking the resource unit for sending upgoing O FDMA data is the corresponding resource unit of Band2.
2, Band2 is switched to.
3, upgoing O FDMA data are sent to AP in Band2.
4, Band0 is switched to.
5, feedback (ACK) data packet that AP is sent is received in Band0.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides another kinds to send out
The schematic diagram of row OFDMA data is served, as shown in Figure 3.
Referring to Fig. 3, wlan system supports 4 channels, is respectively as follows: Band0, Band1, Band2 and Band3, wherein Band0
For main channel, Band1, Band2 and Band3 are auxiliary channel.
The process for only supporting the STA of 20MHz to send upgoing O FDMA data is as follows:
1, the trigger frame that AP is sent, and the trigger frame sent based on AP are received, is obtained Band0 (utilizing Band0) first
Taking the resource unit for sending upgoing O FDMA data is the corresponding resource unit of Band2.
2, Band2 is switched to.
3, upgoing O FDMA data are sent to AP in Band2.
4, feedback (ACK) data packet that AP is sent is received in Band2.
5, Band0 is switched to.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides another hairs
The schematic diagram of row OFDMA data is served, as shown in Figure 4.
Referring to fig. 4, wlan system supports 4 channels, is respectively as follows: Band0, Band1, Band2 and Band3, wherein Band0
For main channel, Band1, Band2 and Band3 are auxiliary channel.
The process for only supporting the STA of 20MHz to send upgoing O FDMA data is as follows:
1, the trigger frame that AP is sent, and the trigger frame sent based on AP are received, is obtained Band0 (utilizing Band0) first
Taking the resource unit for sending upgoing O FDMA data is the corresponding resource unit of Band2.
2, Pre-HE lead data packet is sent to AP in Band0.
3, Band2 is switched to.
In specific implementation, Band2 can be switched to when sending the HE-STF in Pre-HE lead data packet.
4, upgoing O FDMA data are sent to AP in Band2.
5, Band0 is switched to.
6, feedback (ACK) data packet that AP is sent is received in Band0.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides another hairs
The schematic diagram of row OFDMA data is served, as shown in Figure 5.
Referring to Fig. 5, wlan system supports 4 channels, is respectively as follows: Band0, Band1, Band2 and Band3, wherein Band0
For main channel, Band1, Band2 and Band3 are auxiliary channel.
The process for only supporting the STA of 20MHz to send upgoing O FDMA data is as follows:
1, the trigger frame that AP is sent, and the trigger frame sent based on AP are received, is obtained Band0 (utilizing Band0) first
Taking the resource unit for sending upgoing O FDMA data is the corresponding resource unit of Band2.
2, Pre-HE lead data packet is sent to AP in Band0.
3, Band2 is switched to.
In specific implementation, Band2 can be switched to when sending the HE-STF in Pre-HE lead data packet.
4, upgoing O FDMA data are sent to AP in Band2.
5, feedback (ACK) data packet that AP is sent is received in Band2.
6, Band0 is switched to.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides a kind of receptions
The schematic diagram of downlink OFDMA data, as shown in Figure 6.
Referring to Fig. 6, wlan system supports 4 channels, is respectively as follows: Band0, Band1, Band2 and Band3, wherein Band0
For main channel, Band1, Band2 and Band3 are auxiliary channel.
The process for only supporting the STA of 20MHz to receive downlink (Downlink) MU OFDMA PPDU is as follows:
1, DownlinkMU OFDMA PPDU is received in Band0 first, and parses DownlinkMU OFDMA PPDU's
Head information, obtaining the resource unit for receiving DownlinkMU OFDMA PPDU is the corresponding resource unit of Band2.
2, Band2 is switched to.
In specific implementation, Band2 can be switched to when receiving the HE-STF in PPDU.
3, DownlinkMU OFDMA PPDU is received in Band2.
4, Band0 is switched to.
5, in feedback (ACK) data packet of Band0 transmission DownlinkMU OFDMA PPDU to AP.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides another kinds to connect
The schematic diagram of downlink OFDMA data is received, as shown in Figure 7.
Referring to Fig. 7, wlan system supports 4 channels, is respectively as follows: Band0, Band1, Band2 and Band3, wherein Band0
For main channel, Band1, Band2 and Band3 are auxiliary channel.
The process for only supporting the STA of 20MHz to receive downlink (Downlink) MU OFDMA PPDU is as follows:
1, DownlinkMU OFDMA PPDU is received in Band0 first, and parses DownlinkMU OFDMA PPDU's
Head information, obtaining the resource unit for receiving DownlinkMU OFDMA PPDU is the corresponding resource unit of Band2.
2, Band2 is switched to.
In specific implementation, Band2 can be switched to when receiving the HE-STF in PPDU.
3, DownlinkMU OFDMA PPDU is received in Band2.
4, in feedback (ACK) data packet of Band2 transmission DownlinkMU OFDMA PPDU to AP.
5, Band0 is switched to.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides another to connect
The schematic diagram of downlink OFDMA data is received, as shown in Figure 8.
Referring to Fig. 8, wlan system supports 4 channels, is respectively as follows: Band0, Band1, Band2 and Band3, wherein Band0
For main channel, Band1, Band2 and Band3 are auxiliary channel.
The process for only supporting the STA of 20MHz to receive downlink (Downlink) MU OFDMA PPDU is as follows:
1, DownlinkMU OFDMA PPDU is received in Band0 first, and parses DownlinkMU OFDMA PPDU's
Head information, obtaining the resource unit for receiving DownlinkMU OFDMA PPDU is the corresponding resource unit of Band2.
2, Band2 is switched to.
In specific implementation, Band2 can be switched to when receiving the HE-STF in PPDU.
3, DownlinkMU OFDMA PPDU is received in Band2.
4, Band0 is switched to.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides another to connect
The schematic diagram of downlink OFDMA data is received, as shown in Figure 9.
Referring to Fig. 9, wlan system supports 4 channels, is respectively as follows: Band0, Band1, Band2 and Band3, wherein Band0
For main channel, Band1, Band2 and Band3 are auxiliary channel.
The process for only supporting the STA of 20MHz to receive downlink (Downlink) MU OFDMA PPDU is as follows:
1, DownlinkMU OFDMA PPDU is received in Band0 first, and parses DownlinkMU OFDMA PPDU's
Head information, obtaining for receiving the corresponding resource unit of DownlinkMU OFDMA PPDU is the corresponding resource unit of Band2,
Obtaining the corresponding resource unit of feedback data packet for sending DownlinkMU OFDMA PPDU is the corresponding resource of Band1
Unit.
2, Band2 is switched to.
In specific implementation, Band2 can be switched to when receiving the HE-STF in PPDU.
3, DownlinkMU OFDMA PPDU is received in Band2.
4, Band1 is switched to.
5, in feedback (ACK) data packet of Band1 transmission DownlinkMU OFDMA PPDU to AP.
6, Band0 is switched to.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides one kind can
Realize the site apparatus for only supporting 20MHz of the transmission method of above-mentioned WLAN data, as shown in Figure 10.
Referring to Figure 10, the site apparatus 10 for only supporting 20MHz may include: that the first receiving unit 11, first obtains
Unit 12 and transmission unit 13, in which:
First receiving unit 11 receives the data packet that AP is sent suitable for the main channel using WLAN.
The first acquisition unit 12 obtains the resource of transmission WLAN data suitable for the data packet sent based on the AP
Unit, the resource unit are the corresponding resource unit of auxiliary channel of WLAN.
The transmission unit 13, suitable for switching to the auxiliary channel of the WLAN, and it is corresponding based on the auxiliary channel of the WLAN
Resource unit, transmit WLAN data.
In an embodiment of the present invention, the data packet that the AP is sent are as follows: trigger frame；The transmission unit 13, suitable for cutting
The auxiliary channel of the WLAN is shifted to, and the corresponding resource unit of auxiliary channel based on the WLAN, sends uplink WLAN data extremely
The AP.
In specific implementation, the site apparatus 10 for only supporting 20MHz can also include: that the 4th transmission unit (does not show
Out), Pre-HE lead data packet is sent to the AP suitable for the main channel using the WLAN.
In specific implementation, the site apparatus 10 for only supporting 20MHz can also include: that third receiving unit (does not show
Out), suitable for switching to the main channel of the WLAN, and the main channel of the WLAN is utilized, receives the feedback coefficient that the AP is sent
According to packet.
In specific implementation, the site apparatus 10 for only supporting 20MHz can also include: that the 4th receiving unit (does not show
Out), suitable for the auxiliary channel using the WLAN, the feedback data packet that the AP is sent is received.
In an embodiment of the present invention, the data packet that the AP is sent are as follows: downlink PPDU data packet；Described first obtains list
Member obtains the resource unit for receiving downlink PPDU, the reception downlink suitable for parsing the physical layer header information of downlink PPDU
The resource unit of PPDU is the corresponding resource unit of the first auxiliary channel of WLAN；The transmission unit, it is described suitable for switching to
The auxiliary channel of WLAN, and the corresponding resource unit of auxiliary channel based on the WLAN receive the downlink PPDU that the AP is sent.
In specific implementation, the downlink PPDU data packet can be with are as follows: downlink MU OFDMA PPDU data packet.
In specific implementation, the site apparatus 10 for only supporting 20MHz can also include: switch unit (not shown),
Suitable for switching to the main channel of WLAN.
In specific implementation, the site apparatus 10 for only supporting 20MHz can also include: that the first transmission unit (does not show
Out), suitable for the main channel using the WLAN, the corresponding feedback data packet of downlink PPDU is sent to the AP.
In specific implementation, the site apparatus 10 for only supporting 20MHz can also include: that the second transmission unit (does not show
Out), suitable for the first auxiliary channel using the WLAN, the corresponding feedback data packet of downlink PPDU is sent to the AP.
In an embodiment of the present invention, the first acquisition unit 12 is further adapted for parsing the physical layer header letter of downlink PPDU
Breath obtains the resource unit for sending the corresponding feedback data packet of downlink PPDU, described corresponding for sending downlink PPDU
The resource unit of feedback data packet is the corresponding resource unit of the second auxiliary channel of WLAN.
In specific implementation, the site apparatus 10 for only supporting 20MHz can also include: that third transmission unit (does not show
Out), suitable for switching to the second auxiliary channel of WLAN, and the second auxiliary channel of the WLAN is utilized, it is corresponding sends downlink PPDU
Feedback data packet is to the AP.
In specific implementation, the workflow and principle of the site apparatus 10 for only supporting 20MHz can refer to above-mentioned
The description in method provided in embodiment, details are not described herein again.
The embodiment of the present invention provides a kind of computer readable storage medium, and computer readable storage medium is non-volatile deposits
Storage media or non-transitory storage media, are stored thereon with computer instruction, and the computer instruction executes any of the above-described when running
Step corresponding to kind the method, details are not described herein again.
The embodiment of the present invention provides a kind of site apparatus for only supporting 20MHz, including memory and processor, the storage
The computer instruction that can be run on the processor is stored on device, the processor is held when running the computer instruction
Step corresponding to any of the above-described kind of the method for row, details are not described herein again.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: ROM, RAM, disk or CD etc..
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 transmission method for the corresponding WLAN data of STA for only supporting 20MHz characterized by comprising
The data packet that AP is sent is received using the main channel of WLAN；
Based on the data packet that the AP is sent, the resource unit of transmission WLAN data is obtained, the resource unit is the auxiliary of WLAN
The corresponding resource unit of channel；
The auxiliary channel of the WLAN is switched to, and the corresponding resource unit of auxiliary channel based on the WLAN, transmits WLAN data.
2. the transmission method of the STA corresponding WLAN data according to claim 1 for only supporting 20MHz, which is characterized in that
The data packet that the AP is sent are as follows: trigger frame；
The transmission WLAN data includes: to send uplink WLAN data to the AP.
3. the transmission method of the STA corresponding WLAN data according to claim 2 for only supporting 20MHz, which is characterized in that
Before the auxiliary channel for switching to the WLAN, further includes:
Pre-HE lead data packet is sent to the AP using the main channel of the WLAN.
4. the transmission method of the STA corresponding WLAN data according to claim 2 or 3 for only supporting 20MHz, feature exist
In after sending uplink WLAN data to the AP, further includes: switch to the main channel of the WLAN, and described in utilization
The main channel of WLAN receives the feedback data packet that the AP is sent.
5. the transmission method of the STA corresponding WLAN data according to claim 2 or 3 for only supporting 20MHz, feature exist
In after sending uplink WLAN data to the AP, further includes: using the auxiliary channel of the WLAN, receive the AP and send
Feedback data packet.
6. the transmission method of the STA corresponding WLAN data according to claim 1 for only supporting 20MHz, which is characterized in that
The data packet that the AP is sent are as follows: downlink PPDU data packet；
The data packet sent based on the AP, obtains the resource unit of transmission WLAN data, comprising: parsing downlink PPDU's
Physical layer header information, obtains the resource unit for receiving downlink PPDU, and the resource unit for receiving downlink PPDU is
The corresponding resource unit of the first auxiliary channel of WLAN；
The transmission WLAN data includes: the downlink PPDU for receiving the AP and sending.
7. the transmission method of the STA corresponding WLAN data according to claim 6 for only supporting 20MHz, which is characterized in that
The downlink PPDU data packet are as follows: downlink MU OFDMAPPDU data packet.
8. the transmission method of the STA corresponding WLAN data according to claim 6 or 7 for only supporting 20MHz, feature exist
In after receiving the downlink PPDU that AP is sent, further includes:
Switch to the main channel of WLAN.
9. the transmission method of the STA corresponding WLAN data according to claim 8 for only supporting 20MHz, which is characterized in that
After switching to the main channel of WLAN, further includes:
Using the main channel of the WLAN, the corresponding feedback data packet of downlink PPDU is sent to the AP.
10. the transmission method of the STA corresponding WLAN data according to claim 6 or 7 for only supporting 20MHz, feature
It is, after receiving the PPDU that AP is sent, further includes:
Using the first auxiliary channel of the WLAN, the corresponding feedback data packet of downlink PPDU is sent to the AP.
11. the transmission method of the STA corresponding WLAN data according to claim 6 or 7 for only supporting 20MHz, feature
It is, the data packet sent based on the AP obtains the resource unit of transmission WLAN data, further includes:
The physical layer header information for parsing downlink PPDU, obtains the resource list for sending the corresponding feedback data packet of downlink PPDU
Member, the corresponding resource of the second auxiliary channel that the resource unit for sending the corresponding feedback data packet of downlink PPDU is WLAN
Unit.
12. the transmission method of the STA corresponding WLAN data according to claim 11 for only supporting 20MHz, feature exist
In after receiving the downlink PPDU that AP is sent, further includes:
The second auxiliary channel of WLAN is switched to, and using the second auxiliary channel of the WLAN, sends the corresponding feedback of downlink PPDU
Data packet is to the AP.
13. a kind of site apparatus for only supporting 20MHz characterized by comprising
First receiving unit receives the data packet that AP is sent suitable for the main channel using WLAN；
First acquisition unit obtains the resource unit of transmission WLAN data, the money suitable for the data packet sent based on the AP
Source unit is the corresponding resource unit of auxiliary channel of WLAN；
Transmission unit, the corresponding resource unit of auxiliary channel suitable for switching to the auxiliary channel of the WLAN, and based on the WLAN,
Transmit WLAN data.
14. the site apparatus according to claim 13 for only supporting 20MHz, which is characterized in that the data that the AP is sent
Packet are as follows: trigger frame；
The transmission unit, the corresponding resource of auxiliary channel suitable for switching to the auxiliary channel of the WLAN, and based on the WLAN
Unit sends uplink WLAN data to the AP.
15. the site apparatus according to claim 14 for only supporting 20MHz, which is characterized in that further include:
4th transmission unit sends Pre-HE lead data packet to the AP suitable for the main channel using the WLAN.
16. the site apparatus according to claim 14 or 15 for only supporting 20MHz, which is characterized in that further include:
Third receiving unit receives the AP suitable for switching to the main channel of the WLAN, and using the main channel of the WLAN
The feedback data packet of transmission.
17. the site apparatus according to claim 14 or 15 for only supporting 20MHz, which is characterized in that further include:
4th receiving unit receives the feedback data packet that the AP is sent suitable for the auxiliary channel using the WLAN.
18. the site apparatus according to claim 13 for only supporting 20MHz, which is characterized in that the data that the AP is sent
Packet are as follows: downlink PPDU data packet；
The first acquisition unit obtains the money for receiving downlink PPDU suitable for parsing the physical layer header information of downlink PPDU
Source unit, the corresponding resource unit of the first auxiliary channel that the resource unit for receiving downlink PPDU is WLAN；
The transmission unit, the corresponding resource of auxiliary channel suitable for switching to the auxiliary channel of the WLAN, and based on the WLAN
Unit receives the downlink PPDU that the AP is sent.
19. the site apparatus according to claim 18 for only supporting 20MHz, which is characterized in that the downlink PPDU data
Packet are as follows: downlink MU OFDMAPPDU data packet.
20. the site apparatus of 20MHz is only supported described in 8 or 19 according to claim 1, which is characterized in that further include:
Switch unit, suitable for switching to the main channel of WLAN.
21. the site apparatus according to claim 20 for only supporting 20MHz, which is characterized in that further include:
First transmission unit sends the corresponding feedback data packet of downlink PPDU to described suitable for the main channel using the WLAN
AP。
22. the site apparatus of 20MHz is only supported described in 8 or 19 according to claim 1, which is characterized in that further include:
Second transmission unit sends the corresponding feedback data packet of downlink PPDU extremely suitable for the first auxiliary channel using the WLAN
The AP.
23. the site apparatus of 20MHz is only supported described in 8 or 19 according to claim 1, which is characterized in that described first obtains
Unit is further adapted for parsing the physical layer header information of downlink PPDU, obtain for sending the corresponding feedback data packet of downlink PPDU
Resource unit, the second auxiliary channel that the resource unit for sending the corresponding feedback data packet of downlink PPDU is WLAN are corresponding
Resource unit.
24. the site apparatus according to claim 23 for only supporting 20MHz, which is characterized in that further include: third sends single
It is corresponding anti-to send downlink PPDU suitable for switching to the second auxiliary channel of WLAN, and using the second auxiliary channel of the WLAN for member
Data packet is presented to the AP.
25. a kind of computer readable storage medium, computer readable storage medium is non-volatile memory medium or non-transient deposits
Storage media is stored thereon with computer instruction, which is characterized in that perform claim requires 1 to 12 when the computer instruction is run
Any one of the method the step of.
26. one kind only supports the site apparatus of 20MHz, including memory and processor, being stored on the memory can be in institute
State the computer instruction run on processor, which is characterized in that the perform claim when processor runs the computer instruction
It is required that the step of any one of 1 to 12 the method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810747965.5A CN109413703A (en) | 2018-07-09 | 2018-07-09 | Transmission method, site apparatus, the readable medium of WLAN data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810747965.5A CN109413703A (en) | 2018-07-09 | 2018-07-09 | Transmission method, site apparatus, the readable medium of WLAN data |
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| Publication Number | Publication Date |
|---|---|
| CN109413703A true CN109413703A (en) | 2019-03-01 |
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| CN201810747965.5A Pending CN109413703A (en) | 2018-07-09 | 2018-07-09 | Transmission method, site apparatus, the readable medium of WLAN data |
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| CN103428810A (en) * | 2012-05-23 | 2013-12-04 | 华为技术有限公司 | Communication method, receiving method and receiving device of wireless local area network |
| CN103907388A (en) * | 2011-09-26 | 2014-07-02 | 交互数字专利控股公司 | Inter-band carrier aggregation |
| US20160105836A1 (en) * | 2014-10-10 | 2016-04-14 | Newracom, Inc. | Dynamic resource allocation in a high efficiency wireless lan |
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|---|---|---|---|---|
| CN103907388A (en) * | 2011-09-26 | 2014-07-02 | 交互数字专利控股公司 | Inter-band carrier aggregation |
| CN103428810A (en) * | 2012-05-23 | 2013-12-04 | 华为技术有限公司 | Communication method, receiving method and receiving device of wireless local area network |
| US20160105836A1 (en) * | 2014-10-10 | 2016-04-14 | Newracom, Inc. | Dynamic resource allocation in a high efficiency wireless lan |
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Application publication date: 20190301 |