CN105610757B - Communication means and communication device, the website and access point of WLAN - Google Patents
Communication means and communication device, the website and access point of WLAN Download PDFInfo
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- CN105610757B CN105610757B CN201510974775.3A CN201510974775A CN105610757B CN 105610757 B CN105610757 B CN 105610757B CN 201510974775 A CN201510974775 A CN 201510974775A CN 105610757 B CN105610757 B CN 105610757B
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- caching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
Abstract
The present invention provides a kind of communication means of WLAN and communication devices, website and access point, wherein, the communication means of WLAN, it include: generation message frame, the message frame includes first identifier position and second identifier position, the first identifier position is used to indicate the upstream data whether website has caching, and second identifier position is used to indicate whether the website supports uplink orthogonal frequency division multiple access mechanism；The message frame is sent to access point.Technical solution of the present invention may insure that UL OFDMA mechanism is applied, to improve the utilization efficiency of frequency spectrum, improve the handling capacity of system indirectly.
Description
Technical field
The present invention relates to fields of communication technology, wireless in particular to a kind of communication means of WLAN, one kind
The communication device of local area network, a kind of website and a kind of access point.
Background technique
Study group HEW (the High efficiency of next-generation Wi-Fi technology has been set up in May, 2013,802.11
WLAN, efficient WLAN), i.e. 802.11ax, main research point is the handling capacity for improving existing Wi-Fi technology, improves
The effective use efficiency of frequency spectrum improves user experience and service quality Q oE (Quality of Experience), and realizes
Than the communication environment that existing Wi-Fi technology adapts to more crypto set.
In existing Wi-Fi standard, for multiple STA (Station, website) caching upstream data, each STA with
During AP (Access Point, access point) is communicated, in data frame or the frame of ACK (Acknowledge, confirmation) frame
Its upstream data for having caching is identified in head, AP obtains the upstream data of multiple STA by way of poll STA, such
Mode inefficiency.Therefore, in the formulation process of standard, OFDMA (Orthogonal Frequency will be used
Division Multiple Access, orthogonal frequency division multiple access) technology makes multi-user while (Access Point, connects with AP
Access point) establish communication, i.e. UL OFDMA (uplink orthogonal frequency division multiple access) mechanism enables multiple STA to send its caching simultaneously
Upstream data, improve the utilization efficiency of frequency spectrum, but specific operating process does not define but.
Process when therefore, how to using UL OFDMA mechanism carries out reasonable definition, to ensure UL OFDMA machine
System can be applied, and the utilization efficiency for improving frequency spectrum becomes technical problem urgently to be resolved.
Summary of the invention
The present invention is based at least one above-mentioned technical problem, proposes a kind of communication party of new WLAN
Case, it can be ensured that UL OFDMA mechanism is applied, to improve the utilization efficiency of frequency spectrum, improves handling up for system indirectly
Amount.
In view of this, according to the first aspect of the invention, proposing a kind of communication means of WLAN, comprising: raw
At message frame, the message frame includes first identifier position and second identifier position, and whether the first identifier position is used to indicate website
There is the upstream data of caching, the second identifier position is used to indicate whether the website supports uplink orthogonal frequency division multiple access mechanism
(i.e. UL OFDMA)；The message frame is sent to access point.
In the technical scheme, website is by generating the message frame comprising first identifier position and second identifier position, and first
Whether marker instruction website has the upstream data of caching, and whether second identifier position instruction website supports uplink orthogonal frequency division multiple access
Mechanism, so that access point is when receiving the message frame of website transmission, the information that can be reported according to website determines the energy of website
Force information, and then can have the upstream data of caching in website, and when supporting uplink orthogonal frequency division multiple access mechanism, it is sent to website
Communication resource distribution message frame, to ensure that UL OFDMA mechanism can be applied, to improve the utilization efficiency of frequency spectrum, indirectly
Improve the handling capacity of system.
When the value of first identifier position is set as 1, indicate that the website has the upstream data of caching, certainly also by first
Marker is set as indicating the upstream data of caching when other values (for example 0).
When the value of second identifier position is set as 1, indicate that the website supports uplink orthogonal frequency division multiple access mechanism, certainly
Indicate that the website supports uplink orthogonal frequency division multiple access mechanism when also setting other values (for example 0) for second identifier position.
Wherein, uplink orthogonal frequency division multiple access mechanism refers to the channel width resource that all websites are distributed according to access point
Cached upstream data can be transmitted to access point simultaneously in communication channel.
In the above-mentioned technical solutions, it is preferable that indicate that the website has the upstream data of caching in the first identifier position,
When the second identifier position indicates that the website supports uplink orthogonal frequency division multiple access mechanism, the communication party of the WLAN
Method, further includes:
The communication resource distribution message frame that described access point is sent is received, the communication resource distribution message frame includes described
Bandwidth resources needed for the upstream data of caching described in station transmission；According to the bandwidth resources to described in described access point transmission
The upstream data of caching.
Wherein, the bandwidth resources refer to that access point distributes to the channel width of station transmission caching upstream data, institute
The resources such as duration, the transmission time started of busy channel bandwidth.
In the technical scheme, when first identifier position indicates that website has the upstream data of caching, second identifier position instruction station
When point supports uplink orthogonal frequency division multiple access mechanism, communication resource distribution message frame is can be generated in access point, and then website can root
Carry out the upstream data of transmission buffer according to bandwidth resources included in communication resource distribution message frame, it is ensured that UL OFDMA mechanism
Application, improve the utilization efficiency of frequency spectrum, improve the handling capacity of system indirectly.
In any of the above-described technical solution, it is preferable that institute is set in the frame head (i.e. MAC Header) of the message frame
State first identifier position and the second identifier position.
In any of the above-described technical solution, it is preferable that the frame control domain of the frame head is arranged in (i.e. in the first identifier position
Frame Control) in More data subdomain in；The high-throughput control of the frame head is arranged in the second identifier position
In Reserved subdomain in domain (i.e. HT Control).
Certainly, second identifier position also can be set in other fields of mac frame head or a newly-increased proprietary fields come
Second identifier position is set.
In any of the above-described technical solution, it is preferable that the message frame sent to described access point is following appoints
One of meaning: unicast acknowledgement frame, uplink aggregate acknowledgement frames, unicast uplink data frames, probe request, association request frame and certification are asked
Seek frame.
According to the second aspect of the invention, it is also proposed that a kind of communication means of WLAN, comprising: receive message
Frame, the message frame include first identifier position and second identifier position, and the first identifier position instruction website has the upper line number of caching
According to the second identifier position indicates that the website supports uplink orthogonal frequency division multiple access mechanism；Communication resource distribution message frame is generated,
The communication resource distribution message frame includes bandwidth resources needed for the upstream data of caching described in the station transmission；To described
Website sends the communication resource distribution message frame.
In the technical scheme, by indicating that website has the upstream data of caching in first identifier position, second identifier position refers to
When showing that website supports uplink orthogonal frequency division multiple access mechanism, generates communication resource distribution message frame and be sent to website, so that website
When receiving communication resource distribution message frame, can be passed according to bandwidth resources included in communication resource distribution message frame
The upstream data of defeated caching, it is ensured that the application of UL OFDMA mechanism improves the utilization efficiency of frequency spectrum, improves system indirectly
Handling capacity.
Specifically, when the value of first identifier position is set as 1, indicate that the website has the upstream data of caching；When
When the value of two markers is set as 1, indicate that the website supports uplink orthogonal frequency division multiple access mechanism.
Wherein, uplink orthogonal frequency division multiple access mechanism refers to the channel width resource that all websites are distributed according to access point
Cached upstream data can be transmitted to access point simultaneously in communication channel.
In the above-mentioned technical solutions, it is preferable that further include: receive the uplink that the website is transmitted according to the bandwidth resources
Data.
Wherein, bandwidth resources refer to that access point distributes to the channel width of station transmission caching upstream data, occupied letter
The resources such as duration, the transmission time started of road bandwidth.
Embodiment according to a third aspect of the present invention, it is also proposed that a kind of communication device of WLAN, comprising: generate
Unit, for generating message frame, the message frame includes first identifier position and second identifier position, and the first identifier position is for referring to
Show whether website has the upstream data of caching, the second identifier position is used to indicate whether the website supports uplink orthogonal frequency division
Multiple access scheme；Transmission unit, for sending the message frame to access point.
In the technical scheme, website is by generating the message frame comprising first identifier position and second identifier position, and first
Whether marker instruction website has the upstream data of caching, and whether second identifier position instruction website supports uplink orthogonal frequency division multiple access
Mechanism, so that access point is when receiving the message frame of website transmission, the information that can be reported according to website determines the energy of website
Force information, and then can have the upstream data of caching in website, and when supporting uplink orthogonal frequency division multiple access mechanism, it is sent to website
Communication resource distribution message frame, to ensure that UL OFDMA mechanism can be applied, to improve the utilization efficiency of frequency spectrum, indirectly
Improve the handling capacity of system.
When the value of first identifier position is set as 1, indicate that the website has the upstream data of caching, certainly also by first
Marker is set as indicating the upstream data of caching when other values (for example 0).
When the value of second identifier position is set as 1, indicate that the website supports uplink orthogonal frequency division multiple access mechanism, certainly
Indicate that the website supports uplink orthogonal frequency division multiple access mechanism when also setting other values (for example 0) for second identifier position.
Wherein, uplink orthogonal frequency division multiple access mechanism refers to the channel width resource that all websites are distributed according to access point
Cached upstream data can be transmitted to access point simultaneously in communication channel.
In the above-mentioned technical solutions, it is preferable that indicate that the website has the upstream data of caching in the first identifier position,
When the second identifier position indicates that the website supports uplink orthogonal frequency division multiple access mechanism, the communication device of the WLAN
Further include:
Receiving unit, for receiving the communication resource distribution message frame of described access point transmission, the communication resource distribution
Message frame includes bandwidth resources needed for the upstream data of caching described in the station transmission；Data transmission unit is used for basis
The bandwidth resources transmit the upstream data of the caching to described access point.
Wherein, bandwidth resources refer to that access point distributes to the channel width of station transmission caching upstream data, occupied letter
The resources such as duration, the transmission time started of road bandwidth.
In the technical scheme, when first identifier position indicates that website has the upstream data of caching, second identifier position instruction station
When point supports uplink orthogonal frequency division multiple access mechanism, communication resource distribution message frame is can be generated in access point, and then website can root
Carry out the upstream data of transmission buffer according to bandwidth resources included in communication resource distribution message frame, it is ensured that UL OFDMA mechanism
Application, improve the utilization efficiency of frequency spectrum, improve the handling capacity of system indirectly.
In any of the above-described technical solution, it is preferable that be arranged in the frame head of the message frame first identifier position and
The second identifier position.
In any of the above-described technical solution, it is preferable that the first identifier position is arranged in the frame control domain of the frame head
More data subdomain in；Of the Reserved in the high-throughput control domain of the frame head is arranged in the second identifier position
In domain.
Certainly, second identifier position also can be set in other fields of mac frame head or a newly-increased proprietary fields come
Second identifier position is set.
In any of the above-described technical solution, it is preferable that the message frame sent to described access point is following appoints
One of meaning: unicast acknowledgement frame, uplink aggregate acknowledgement frames, unicast uplink data frames, probe request, association request frame and certification are asked
Seek frame.
According to the fourth aspect of the invention, it is also proposed that a kind of communication device of WLAN, comprising: receiving unit,
For receiving message frame, the message frame includes first identifier position and second identifier position, and the first identifier position instruction website has
The upstream data of caching, the second identifier position indicate that the website supports uplink orthogonal frequency division multiple access mechanism；Generation unit is used
In generating communication resource distribution message frame, the communication resource distribution message frame includes the uplink of caching described in the station transmission
Bandwidth resources needed for data；Transmission unit, for sending the communication resource distribution message frame to the website.
In the technical scheme, by indicating that website has the upstream data of caching in first identifier position, second identifier position refers to
When showing that website supports uplink orthogonal frequency division multiple access mechanism, generates communication resource distribution message frame and be sent to website, so that website
When receiving communication resource distribution message frame, can be passed according to bandwidth resources included in communication resource distribution message frame
The upstream data of defeated caching, it is ensured that the application of UL OFDMA mechanism improves the utilization efficiency of frequency spectrum, improves system indirectly
Handling capacity.
Specifically, when the value of first identifier position is set as 1, indicate that the website has the upstream data of caching；When
When the value of two markers is set as 1, indicate that the website supports uplink orthogonal frequency division multiple access mechanism.
Wherein, uplink orthogonal frequency division multiple access mechanism refers to the channel width resource that all websites are distributed according to access point
Cached upstream data can be transmitted to access point simultaneously in communication channel.
In the above-mentioned technical solutions, it is preferable that the receiving unit is also used to: receiving the website and provided according to the bandwidth
The upstream data of source transmission.
Wherein, bandwidth resources refer to that access point distributes to the channel width of station transmission caching upstream data, occupied letter
The resources such as duration, the transmission time started of road bandwidth.
According to the fifth aspect of the invention, it is also proposed that a kind of website, comprising: the wireless office proposed such as the above-mentioned third aspect
The communication device of domain net.
According to the sixth aspect of the invention, it is also proposed that a kind of access point, comprising: such as above-mentioned fourth aspect proposes wireless
The communication device of local area network.
Pass through above technical scheme, it can be ensured that UL OFDMA mechanism is applied, and imitates to improve utilizing for frequency spectrum
Rate improves the handling capacity of system indirectly.
Detailed description of the invention
Fig. 1 shows the schematic flow diagram of the communication means of WLAN according to first embodiment of the invention；
Fig. 2 shows the schematic block diagrams of the communication device of WLAN according to first embodiment of the invention；
Fig. 3 shows the schematic block diagram of the website of embodiment according to the present invention；
Fig. 4 shows the schematic flow diagram of the communication means of the WLAN of second embodiment according to the present invention；
Fig. 5 shows the schematic block diagram of the communication device of the WLAN of second embodiment according to the present invention；
Fig. 6 shows the schematic block diagram of the access point of embodiment according to the present invention；
Fig. 7 shows the STAs of embodiment according to the present invention to the schematic flow diagram of AP feedback unicast ACK frame；
Fig. 8 shows the STAs of embodiment according to the present invention to the schematic flow diagram of AP feedback multicast ACK frame；
Fig. 9 shows the frame structure schematic diagram of the message frame of embodiment according to the present invention；
Figure 10 shows the schematic flow diagram of the communication means of the WLAN of third embodiment according to the present invention.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 1 shows the schematic flow diagram of the communication means of WLAN according to first embodiment of the invention.
As shown in Figure 1, the communication means of WLAN according to first embodiment of the invention, comprising:
Step 102, message frame is generated, the message frame includes first identifier position and second identifier position, the first identifier
Position is used to indicate the upstream data whether website has caching, and second identifier position is used to indicate whether the website supports uplink
Orthogonal frequency division multiple access mechanism；
Step 104, the message frame is sent to access point.
The executing subject of communication means shown in FIG. 1 can be mobile phone or PDA (Personal Digital
Assistant, palm PC) etc..
In the technical scheme, website is by generating the message frame comprising first identifier position and second identifier position, and first
Whether marker instruction website has the upstream data of caching, and whether second identifier position instruction website supports uplink orthogonal frequency division multiple access
Mechanism, so that access point is when receiving the message frame of website transmission, the information that can be reported according to website determines the energy of website
Force information, and then can have the upstream data of caching in website, and when supporting uplink orthogonal frequency division multiple access mechanism, it is sent to website
Communication resource distribution message frame, to ensure that UL OFDMA mechanism can be applied, to improve the utilization efficiency of frequency spectrum, indirectly
Improve the handling capacity of system.
When the value of first identifier position is set as 1, indicate that the website has the upstream data of caching, certainly also by first
Marker is set as indicating the upstream data of caching when other values (for example 0).
When the value of second identifier position is set as 1, indicate that the website supports uplink orthogonal frequency division multiple access mechanism, certainly
Indicate that the website supports uplink orthogonal frequency division multiple access mechanism when also setting other values (for example 0) for second identifier position.
Wherein, uplink orthogonal frequency division multiple access mechanism refers to the channel width resource that all websites are distributed according to access point
Cached upstream data can be transmitted to access point simultaneously in communication channel.
In the above-mentioned technical solutions, it is preferable that indicate that the website has the upstream data of caching in the first identifier position,
When the second identifier position indicates that the website supports uplink orthogonal frequency division multiple access mechanism, the communication party of the WLAN
Method, further includes:
The communication resource distribution message frame that described access point is sent is received, the communication resource distribution message frame includes described
Bandwidth resources needed for the upstream data of caching described in station transmission；According to the bandwidth resources to described in described access point transmission
The upstream data of caching.
Wherein, the bandwidth resources refer to that access point distributes to the channel width of station transmission caching upstream data, institute
The resources such as duration, the transmission time started of busy channel bandwidth.
In the technical scheme, when first identifier position indicates that website has the upstream data of caching, second identifier position instruction station
When point supports uplink orthogonal frequency division multiple access mechanism, communication resource distribution message frame is can be generated in access point, and then website can root
Carry out the upstream data of transmission buffer according to bandwidth resources included in communication resource distribution message frame, it is ensured that UL OFDMA mechanism
Application, improve the utilization efficiency of frequency spectrum, improve the handling capacity of system indirectly.
In any of the above-described technical solution, it is preferable that institute is set in the frame head (i.e. MAC Header) of the message frame
State first identifier position and the second identifier position.
In any of the above-described technical solution, it is preferable that the frame control domain of the frame head is arranged in (i.e. in the first identifier position
Frame Control) in More data subdomain in；The high-throughput control of the frame head is arranged in the second identifier position
In Reserved subdomain in domain (i.e. HT Control).
Certainly, second identifier position also can be set in other fields of mac frame head or a newly-increased proprietary fields come
Second identifier position is set.
In any of the above-described technical solution, it is preferable that the message frame sent to described access point is following appoints
One of meaning: unicast acknowledgement frame, uplink aggregate acknowledgement frames, unicast uplink data frames, probe request, association request frame and certification are asked
Seek frame.
Fig. 2 shows the schematic block diagrams of the communication device of WLAN according to first embodiment of the invention.
As shown in Fig. 2, the communication device 200 of WLAN according to first embodiment of the invention, comprising: generate
Unit 202 and transmission unit 204.
Wherein, generation unit 202, for generating message frame, the message frame includes first identifier position and second identifier position,
The first identifier position is used to indicate the upstream data whether website has caching, and second identifier position is used to indicate the website
Whether uplink orthogonal frequency division multiple access mechanism is supported；Transmission unit 204, for sending the message frame to access point.
Wherein, generation unit 202 can be signal processor, central processing unit or baseband processor when realizing.It sends
Unit 204 can be transmitter (Transmitter) or antenna.
In the technical scheme, website is by generating the message frame comprising first identifier position and second identifier position, and first
Whether marker instruction website has the upstream data of caching, and whether second identifier position instruction website supports uplink orthogonal frequency division multiple access
Mechanism, so that access point is when receiving the message frame of website transmission, the information that can be reported according to website determines the energy of website
Force information, and then can have the upstream data of caching in website, and when supporting uplink orthogonal frequency division multiple access mechanism, it is sent to website
Communication resource distribution message frame, to ensure that UL OFDMA mechanism can be applied, to improve the utilization efficiency of frequency spectrum, indirectly
Improve the handling capacity of system.
When the value of first identifier position is set as 1, indicate that the website has the upstream data of caching, certainly also by first
Marker is set as indicating the upstream data of caching when other values (for example 0).
When the value of second identifier position is set as 1, indicate that the website supports uplink orthogonal frequency division multiple access mechanism, certainly
Indicate that the website supports uplink orthogonal frequency division multiple access mechanism when also setting other values (for example 0) for second identifier position.
Wherein, uplink orthogonal frequency division multiple access mechanism refers to the channel width resource that all websites are distributed according to access point
Cached upstream data can be transmitted to access point simultaneously in communication channel.
In the above-mentioned technical solutions, it is preferable that indicate that the website has the upstream data of caching in the first identifier position,
When the second identifier position indicates that the website supports uplink orthogonal frequency division multiple access mechanism, the communication device of the WLAN
200 further include:
Receiving unit 206, for receiving the communication resource distribution message frame of described access point transmission, the communication resource point
It include bandwidth resources needed for the upstream data of caching described in the station transmission with message frame；Data transmission unit 208, is used for
The upstream data of the caching is transmitted to described access point according to the bandwidth resources.
Wherein, receiving unit 206 can be receiver or antenna when realizing.The bandwidth resources refer to access point point
The resources such as channel width, the duration of occupied channel width, the transmission time started of dispensing website transmission buffer upstream data.
In the technical scheme, when first identifier position indicates that website has the upstream data of caching, second identifier position instruction station
When point supports uplink orthogonal frequency division multiple access mechanism, communication resource distribution message frame is can be generated in access point, and then website can root
Carry out the upstream data of transmission buffer according to bandwidth resources included in communication resource distribution message frame, it is ensured that UL OFDMA mechanism
Application, improve the utilization efficiency of frequency spectrum, improve the handling capacity of system indirectly.
In any of the above-described technical solution, it is preferable that be arranged in the frame head of the message frame first identifier position and
The second identifier position.
In any of the above-described technical solution, it is preferable that the first identifier position is arranged in the frame control domain of the frame head
More data subdomain in；Of the Reserved in the high-throughput control domain of the frame head is arranged in the second identifier position
In domain.
Certainly, second identifier position also can be set in other fields of mac frame head or a newly-increased proprietary fields come
Second identifier position is set.
In any of the above-described technical solution, it is preferable that the message frame sent to described access point is following appoints
One of meaning: unicast acknowledgement frame, uplink aggregate acknowledgement frames, unicast uplink data frames, probe request, association request frame and certification are asked
Seek frame.
Fig. 3 shows the schematic block diagram of the website of embodiment according to the present invention.
As shown in figure 3, the website 300 of embodiment according to the present invention, comprising: WLAN as shown in Figure 2 leads to
T unit 200.
Fig. 4 shows the schematic flow diagram of the communication means of the WLAN of second embodiment according to the present invention.
As shown in figure 4, the communication means of the WLAN of second embodiment according to the present invention, comprising:
Step 402, message frame is received, the message frame includes first identifier position and second identifier position, the first identifier
Position instruction website has the upstream data of caching, and the second identifier position indicates that the website supports uplink orthogonal frequency division multiple access machine
System；
Step 404, communication resource distribution message frame is generated, the communication resource distribution message frame includes the station transmission
Bandwidth resources needed for the upstream data of the caching；
Step 406, the communication resource distribution message frame is sent to the website.
Wherein, the executing subject of communication means shown in Fig. 4 can be router etc..
In the technical scheme, by indicating that website has the upstream data of caching in first identifier position, second identifier position refers to
When showing that website supports uplink orthogonal frequency division multiple access mechanism, generates communication resource distribution message frame and be sent to website, so that website
When receiving communication resource distribution message frame, can be passed according to bandwidth resources included in communication resource distribution message frame
The upstream data of defeated caching, it is ensured that the application of UL OFDMA mechanism improves the utilization efficiency of frequency spectrum, improves system indirectly
Handling capacity.
Specifically, when the value of first identifier position is set as 1, indicate that the website has the upstream data of caching；When
When the value of two markers is set as 1, indicate that the website supports uplink orthogonal frequency division multiple access mechanism.
Wherein, uplink orthogonal frequency division multiple access mechanism refers to the channel width resource that all websites are distributed according to access point
Cached upstream data can be transmitted to access point simultaneously in communication channel.
In the above-mentioned technical solutions, it is preferable that further include: receive the uplink that the website is transmitted according to the bandwidth resources
Data.
Wherein, bandwidth resources refer to that access point distributes to the channel width of station transmission caching upstream data, occupied letter
The resources such as duration, the transmission time started of road bandwidth.
Fig. 5 shows the schematic block diagram of the communication device of the WLAN of second embodiment according to the present invention.
As shown in figure 5, the communication device of the WLAN of second embodiment according to the present invention, comprising: receive single
Member 502, generation unit 504 and transmission unit 506.
Wherein, receiving unit 502, for receiving message frame, the message frame includes first identifier position and second identifier position,
The first identifier position instruction website has the upstream data of caching, and the second identifier position indicates that the website supports uplink orthogonal
Frequency division multiple access mechanism；Generation unit 504, for generating communication resource distribution message frame, the communication resource distribution message frame packet
Bandwidth resources needed for including the upstream data of caching described in the station transmission；Transmission unit 506, for being sent to the website
The communication resource distribution message frame.
Wherein, receiving unit 502 can be receiver or antenna when realizing；Generation unit 504 can be when realizing
Signal processor, central processing unit or baseband processor；Transmission unit 506 can be transmitter or antenna.
In the technical scheme, by indicating that website has the upstream data of caching in first identifier position, second identifier position refers to
When showing that website supports uplink orthogonal frequency division multiple access mechanism, generates communication resource distribution message frame and be sent to website, so that website
When receiving communication resource distribution message frame, can be passed according to bandwidth resources included in communication resource distribution message frame
The upstream data of defeated caching, it is ensured that the application of UL OFDMA mechanism improves the utilization efficiency of frequency spectrum, improves system indirectly
Handling capacity.
Specifically, when the value of first identifier position is set as 1, indicate that the website has the upstream data of caching；When
When the value of two markers is set as 1, indicate that the website supports uplink orthogonal frequency division multiple access mechanism.
Wherein, uplink orthogonal frequency division multiple access mechanism refers to the channel width resource that all websites are distributed according to access point
Cached upstream data can be transmitted to access point simultaneously in communication channel.
In the above-mentioned technical solutions, it is preferable that the receiving unit 502 is also used to: receiving the website according to the band
The upstream data of wide resource transmission.
Wherein, bandwidth resources refer to that access point distributes to the channel width of station transmission caching upstream data, occupied letter
The resources such as duration, the transmission time started of road bandwidth.
Fig. 6 shows the schematic block diagram of the access point of embodiment according to the present invention.
As shown in fig. 6, the access point 600 of embodiment according to the present invention, comprising: WLAN as shown in Figure 5
Communication device 500.
In conclusion technical solution of the present invention be mainly STAs reply to AP ACK frame (including unicast ACK frame and
Multicast ACK frame), probe request (Probe Request), association request frame (Association Request), certification request
The frame head part (MAC Header) of frame (Authentication Request) or other data frames, which identifies it, the upper of caching
Row data, and identify it and support UL OFDMA mechanism, so that AP can start the mistake of subsequent STAs simultaneous transmission upstream data
Journey.
Specifically, when STAs is to identify upstream data that it has caching in the ACK frame for feeding back to AP and with one or more
It, can be just like Fig. 7 and two kinds shown in Fig. 8 when a bit indicates that STAs can receive resource allocation message frame transmitted by AP
Feedback system:
As shown in fig. 7, can be fed back by unicast ACK frame to AP.Specifically, when AP sends MSDU to each STA
After (MAC Service Data Unit, MAC Service Data Unit), each STA to the ACK frame that AP is fed back (such as institute in Fig. 7
The STA1 shown is to AP feeding back ACK 1, and for STA2 to AP feeding back ACK 2 ... ..., STAn, which identifies it into AP feeding back ACK n), caching
Upstream data and its resource allocation message frame that can receive AP transmission, and then AP sends Resource to all STA
Allocation (resource allocation) message frame, then all STA can transmit upstream data to AP simultaneously, i.e., shown in fig. 7
UL(Uplink Link)MSDU。
As shown in figure 8, can also be fed back by UL ACK (i.e. the aggregate acknowledgements of STAs (ACK)) frame to AP.Specifically,
After AP sends MSDU (MAC Service Data Unit, MAC Service Data Unit) to each STA, fed back in STAs to AP
UL ACK in identify upstream data that it has caching and its resource allocation message frame that can receive AP transmission, and then AP is to institute
Some STA send Resource Allocation (resource allocation) message frame, and then all STA can be simultaneously in AP transmission
Row data, i.e., UL MSDU shown in fig. 8.
Wherein, non-limiting as a preferred embodiment, as shown in figure 9, AP can be fed back to by STA or STAs
Message frame frame head Frame Control (frame control) domain in More Data subdomain identify whether STA or STAs has
The upstream data of caching；Meanwhile the HT Control of frame head of the message frame of AP can be fed back to by STA or STAs (height gulps down
The amount of spitting control) whether Reserved subdomain in domain to identify STA or STAs support UL OFDMA mechanism, i.e. mark STA or
Whether STAs can receive the resource allocation message frame of AP transmission.
Figure 10 shows the schematic flow diagram of the communication means of the WLAN of third embodiment according to the present invention.
As shown in Figure 10, the communication means of the WLAN of third embodiment according to the present invention, comprising:
Step 1001, website 1 generates message frame, includes first identifier position and second identifier position, first identifier in message frame
Position is used to indicate the upstream data whether website 1 has caching, and second identifier position is used to indicate whether website 1 supports UL OFDMA machine
System.
Need important is, if website 1 generate message frame be the ACK frame for feeding back to access point 2, step 1001 it
Before further include the steps that access point 2 to website 1 send data.
Step 1002, website 1 sends message frame.
Step 1003, access point 2 receives message frame.
Step 1004, access point 2 determines that website 1 has the upstream data of caching and support UL according to the marker in message frame
OFDMA mechanism.
Step 1005, access point 2 generates resource allocation message frame.
Step 1006, access point 2 sends resource allocation message frame.
Step 1007, website 1 receives resource allocation message frame.
Step 1008, website 1 obtains the bandwidth resources of the distribution of access point 2 from resource allocation message frame.
Step 1009, website 1 is according to the upstream data of bandwidth resources transmission buffer.
The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, and the invention proposes a kind of new WLANs
Communication plan, it can be ensured that UL OFDMA mechanism is applied, to improve the utilization efficiency of frequency spectrum, improves indirectly and is
The handling capacity of system.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (14)
1. a kind of communication means of WLAN characterized by comprising
Message frame is generated, the message frame includes first identifier position and second identifier position, and the first identifier position is used to indicate station
Whether point has the upstream data of caching, and the second identifier position is used to indicate whether the website supports uplink orthogonal frequency division multiple access
Mechanism；
The message frame is sent to access point；
Indicate that the website has the upstream data of caching in the first identifier position, the second identifier position indicates the website branch
When holding uplink orthogonal frequency division multiple access mechanism,
The communication means of the WLAN, further includes:
The communication resource distribution message frame that described access point is sent is received, the communication resource distribution message frame includes the website
Bandwidth resources needed for transmitting the upstream data of the caching；
The upstream data of the caching is transmitted to described access point according to the bandwidth resources.
2. the communication means of WLAN according to claim 1, which is characterized in that in the frame head of the message frame
The first identifier position and the second identifier position are set.
3. the communication means of WLAN according to claim 2, it is characterised in that:
The first identifier position is arranged in the More data subdomain in the frame control domain of the frame head；
The second identifier position is arranged in the Reserved subdomain in the high-throughput control domain of the frame head.
4. the communication means of WLAN according to any one of claim 1 to 3, which is characterized in that described to institute
It is one of any as follows for stating the message frame of access point transmission:
Unicast acknowledgement frame, uplink aggregate acknowledgement frames, unicast uplink data frames, probe request, association request frame and certification request
Frame.
5. a kind of communication means of WLAN characterized by comprising
Message frame is received, the message frame includes first identifier position and second identifier position, and the first identifier position instruction website has
The upstream data of caching, the second identifier position indicate that the website supports uplink orthogonal frequency division multiple access mechanism；
Communication resource distribution message frame is generated, the communication resource distribution message frame includes the upper of caching described in the station transmission
Bandwidth resources needed for row data；
The communication resource distribution message frame is sent to the website.
6. the communication means of WLAN according to claim 5, which is characterized in that further include:
Receive the upstream data that the website is transmitted according to the bandwidth resources.
7. a kind of communication device of WLAN characterized by comprising
Generation unit, for generating message frame, the message frame includes first identifier position and second identifier position, the first identifier
Position is used to indicate the upstream data whether website has caching, and second identifier position is used to indicate whether the website supports uplink
Orthogonal frequency division multiple access mechanism；
Transmission unit, for sending the message frame to access point；
Indicate that the website has the upstream data of caching in the first identifier position, the second identifier position indicates the website branch
When holding uplink orthogonal frequency division multiple access mechanism,
The communication device of the WLAN further include:
Receiving unit, for receiving the communication resource distribution message frame of described access point transmission, the communication resource distribution message
Frame includes bandwidth resources needed for the upstream data of caching described in the station transmission；
Data transmission unit, for transmitting the upstream data of the caching to described access point according to the bandwidth resources.
8. the communication device of WLAN according to claim 7, which is characterized in that in the frame head of the message frame
The first identifier position and the second identifier position are set.
9. the communication device of WLAN according to claim 8, it is characterised in that:
The first identifier position is arranged in the More data subdomain in the frame control domain of the frame head；
The second identifier position is arranged in the Reserved subdomain in the high-throughput control domain of the frame head.
10. the communication device of WLAN according to any one of claims 7 to 9, which is characterized in that described to institute
It is one of any as follows for stating the message frame of access point transmission:
Unicast acknowledgement frame, uplink aggregate acknowledgement frames, unicast uplink data frames, probe request, association request frame and certification request
Frame.
11. a kind of communication device of WLAN characterized by comprising
Receiving unit, for receiving message frame, the message frame includes first identifier position and second identifier position, the first identifier
Position instruction website has the upstream data of caching, and the second identifier position indicates that the website supports uplink orthogonal frequency division multiple access machine
System；
Generation unit, for generating communication resource distribution message frame, the communication resource distribution message frame includes that the website passes
Bandwidth resources needed for the upstream data of the defeated caching；
Transmission unit, for sending the communication resource distribution message frame to the website.
12. the communication device of WLAN according to claim 11, which is characterized in that the receiving unit is also used
In:
Receive the upstream data that the website is transmitted according to the bandwidth resources.
13. a kind of website characterized by comprising the communication of the WLAN as described in any one of claim 7 to 10
Device.
14. a kind of access point characterized by comprising the communication device of the WLAN as described in claim 11 or 12.
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| CN107645372A (en) * | 2016-07-21 | 2018-01-30 | 珠海市魅族科技有限公司 | Communication means, communicator, access point and the website of WLAN |
| CN109219154B (en) * | 2017-07-03 | 2023-04-07 | 珠海市魅族科技有限公司 | Communication method, communication device and communication equipment of wireless local area network |
| WO2023065360A1 (en) * | 2021-10-22 | 2023-04-27 | 北京小米移动软件有限公司 | Communication method and communication apparatus |
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