CN108513340A - Method for wireless local area network communication and communication device, website, access point - Google Patents
Method for wireless local area network communication and communication device, website, access point Download PDFInfo
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- CN108513340A CN108513340A CN201710103912.5A CN201710103912A CN108513340A CN 108513340 A CN108513340 A CN 108513340A CN 201710103912 A CN201710103912 A CN 201710103912A CN 108513340 A CN108513340 A CN 108513340A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The present invention provides a kind of method for wireless local area network communication and communication device, website, access points.Wherein, a kind of method for wireless local area network communication is used for website, including：Multicast/broadcast wakeup message frame is received, wakeup message frame is used for the principal communication interface of wake-up device, and wherein principal communication interface is used to receive the downlink data frame of sender's caching of multicast/broadcast message frame；And TIM information in the beacon frame of the principal communication interface of the equipment sender that does not intercept multicast/broadcast message frame obtains the downlink data frame of caching.Technical solution through the invention so that WUR can be preferably compatible with 802.11ax, had not only met the demand of WUR, but also reduces the waste of resource.
Description
Technical field
The present invention relates to fields of communication technology, are filled in particular to a kind of method for wireless local area network communication and communication
It sets, further relates to a kind of website and access point.
Background technology
The seminar WUR (Wake Up Receiver) of next-generation Wi-Fi technology has been set up in July, 2016,802.11,
It is main to apply in terms of Internet of Things, solve the problems, such as be maximum possible saving equipment power dissipation.In subsequent SG (Study
Group in discussion), it is proposed that WUR frames signaling frame in order to control, and WUR functions need to be compatible with 802.11ax, it is contemplated that 802.11ax
It is middle to use OFDMA technologies, and ascending resource is distributed to each STAs using resource allocation message frame, in order to make WUR more
Good compatibility 802.11ax has manuscript to propose the process that WUR frames in the multi-user case wake up STAs, but there is no to WUR
The format of control frame makes specific regulation.
However in order to enable WUR preferably meets the needs of 802.11ax, definition need to be made to the format of WUR control frames.
Therefore, the multicast of wake up frames or the format of broadcast frame how are defined, current urgent problem to be solved is become.
Invention content
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, an object of the present invention is to provide a kind of method for wireless local area network communication.
It is another object of the present invention to propose a kind of WLAN communication device.
A further object of the present invention is to propose a kind of website.
Another object of the present invention is to propose a kind of access point.
In view of this, the present invention proposes a kind of method for wireless local area network communication, it is used for website, including：Reception multicast/
Broadcast wakeup message frame, wakeup message frame be used for wake-up device principal communication interface, wherein principal communication interface for receive multicast/
The downlink data frame of sender's caching of broadcast message frame；And the principal communication interface of equipment does not intercept multicast/broadcast message frame
TIM (Traffic Indication Map, data instruction to be passed) information in the beacon frame of sender obtains under caching
Row data frame.
Method for wireless local area network communication according to the present invention, website (STAs) receive multicast or broadcast wakeup message frame,
And the wakeup message frame is parsed, when the sender for being resolved to multicast or broadcast wakeup message frame is cached with downlink data frame
When, then the principal communication interface of wake-up device, so as to the downlink data frame of order caching, and delays in the principal communication interface of equipment
When the downlink data frame deposited, without the TIM information in the beacon frame for the sender for intercepting multicast/broadcast message frame, so that
WUR can be preferably compatible with 802.11ax, had not only met the demand of WUR, but also reduces the waste of resource.
In addition, according to the above-mentioned method for wireless local area network communication of the present invention, there can also be following additional technology special
Sign：
In the above-mentioned technical solutions, it is preferable that this method further includes：In the downlink that the principal communication interface of equipment caches
Before data frame, the resource allocation message frame that multicast/broadcast wakeup message frame sender sends is received, resource allocation message frame is
The downlink data frame of caching distributes frequency spectrum resource.
In the technical scheme, it is cached in the principal communication interface multicast of equipment or broadcast wakeup message frame sender
Before downlink data frame, receives multicast or the resource allocation message frame of broadcast wakeup message frame sender transmission, resource allocation disappear
Breath frame includes the frequency spectrum resource of oriented multiple website distribution reduces the possibility clashed to avoid the interference of interchannel
Property, improve the efficiency of data transmission.
In any of the above-described scheme, it is preferable that this method further includes：The principal communication interface of equipment is according to resource allocation message
Frame sends PS (Power Saving)-Poll power-save polls frame and obtains caching to the sender of multicast/broadcast message frame
Downlink data frame.
In the technical scheme, after website receives resource allocation message frame, the principal communication interface of equipment will be sent
One PS-Poll frame completes the primary communication between website and the sender of multicast or broadcast wakeup message frame, notify multicast or
The sender of broadcast wakeup message frame is ready for receiving the preparation of data, to obtain the downlink data cached before from AP
Frame.
The present invention also proposes a kind of method for wireless local area network communication, is used for access point, including：Multicast/broadcast is generated to call out
Awake message frame, wakeup message frame are used to wake up the principal communication interface of multicast/broadcast wakeup message frame receiver equipment, wherein main logical
Letter interface is used to receive the downlink data frame of sender's caching of multicast/broadcast message frame；And the transmission of multicast/broadcast message frame
Side is in beacon (Beacon) frame by caching downlink data frame mapped TIM (the Traffic Indication of recipient
Map) the correspondence position in message is set as " 0 " or the bit corresponding in TIM it is not necessary that recipient is arranged, indicate recipient without
The downlink data frame of caching.
Method for wireless local area network communication according to the present invention, access point (AP) generate multicast or broadcast wakeup message frame,
Principal communication interface for the receiver equipment for waking up multicast/broadcast wakeup message frame, connects so as to the principal communication of receiver equipment
Mouth obtains the downlink data frame of caching from AP, and the sender of multicast/broadcast message frame is within a beacon frame by the slow of recipient
The correspondence position in downlink data frame mapped TIM message is deposited to be set as " 0 " or corresponding in TIM it is not necessary that recipient is arranged
Bit, the principal communication interface of such receiver equipment is when receiving the downlink data frame of AP cachings, without intercepting in beacon frame
TIM information not only met the demand of WUR so that WUR can be preferably compatible with 802.11ax, but also reduce resource
Waste.
In addition, according to the above-mentioned method for wireless local area network communication of the present invention, there can also be following additional technology special
Sign：
In the above-mentioned technical solutions, it is preferable that this method further includes：In the downlink that the principal communication interface of equipment caches
Before data frame, resource allocation message frame is generated, resource allocation message frame is the downlink data frame distribution frequency spectrum resource of caching.
In the technical scheme, in the principal communication interface multicast of receiver equipment or broadcast wakeup message frame sender
Before the downlink data frame of caching, resource allocation message frame is generated, which includes oriented multiple website distribution
Frequency spectrum resource reduce the possibility clashed to avoid the interference of interchannel, improve the efficiency of data transmission.
In any of the above-described scheme, it is preferable that this method further includes：Receiving device principal communication interface disappears according to resource allocation
PS (Power Saving)-Poll power-save poll frames that frame is sent are ceased, it is slow to be sent to the recipient of multicast/broadcast message frame
The downlink data frame deposited.
In the technical scheme, AP receive the principal communication interface of multicast/broadcast wakeup message frame receiver equipment according to
The PS-Poll frames that resource allocation message frame is sent are completed primary logical between AP and multicast/broadcast wakeup message frame recipient
Letter learns that the recipient of multicast/broadcast wakeup message frame is ready for receiving the preparation of data, so as to the downlink data that will be cached
Frame is sent to the recipient of multicast/broadcast message frame.
The present invention also proposes a kind of WLAN communication device, is used for website, including：First receiving unit, is used for
Multicast/broadcast wakeup message frame is received, wakeup message frame is used for the principal communication interface of wake-up device, and wherein principal communication interface is used for
Receive the downlink data frame of sender's caching of multicast/broadcast message frame；And equipment principal communication interface does not intercept multicast/broadcast and disappears
TIM (the Traffic Indication Map) information in the beacon frame of the sender of frame is ceased to obtain the downlink data of caching
Frame.
The sending device of data frame according to the present invention, website (STAs) receive multicast or broadcast wakeup message frame, and right
The wakeup message frame is parsed, when the sender for being resolved to multicast or broadcast wakeup message frame is cached with downlink data frame,
The then principal communication interface of wake-up device so as to the downlink data frame of order caching, and is cached in the principal communication interface of equipment
Downlink data frame when, without the TIM information in the beacon frame for the sender for intercepting multicast/broadcast message frame, so that WUR
Can be preferably compatible with 802.11ax, the demand of WUR was not only met, but also reduce the waste of resource.
In addition, according to the above-mentioned WLAN communication device of the present invention, there can also be following additional technology special
Sign：
In the above-mentioned technical solutions, it is preferable that the device further includes：Second receiving unit, for being connect in equipment principal communication
Before the downlink data frame of mouth order caching, the resource allocation message frame that multicast/broadcast message frame sender sends, resource are received
Assignment messages frame is the downlink data frame distribution frequency spectrum resource of caching.
In the technical scheme, it is cached in the principal communication interface multicast of equipment or broadcast wakeup message frame sender
Before downlink data frame, receives multicast or the resource allocation message frame of broadcast wakeup message frame sender transmission, resource allocation disappear
Breath frame includes the frequency spectrum resource of oriented multiple website distribution reduces the possibility clashed to avoid the interference of interchannel
Property, improve the efficiency of data transmission.
In any of the above-described scheme, it is preferable that the device further includes：Transmission unit, for equipment principal communication interface according to
Resource allocation message frame send PS (Power Saving)-Poll power-save polls frames to multicast/broadcast message frame sender with
Just the downlink data frame of caching is obtained.
In the technical scheme, after website receives resource allocation message frame, the principal communication interface of equipment will be sent
One PS-Poll frame completes the primary communication between website and the sender of multicast or broadcast wakeup message frame, notify multicast or
The sender of broadcast wakeup message frame is ready for receiving the preparation of data, to obtain the downlink data cached before from AP
Frame.
The present invention also proposes a kind of WLAN communication device, is used for access point, including：First generation unit is used
In generating multicast/broadcast wakeup message frame, wakeup message frame is used to wake up the master of multicast/broadcast wakeup message frame receiver equipment
Communication interface, wherein principal communication interface are used to receive the downlink data frame of sender's caching of multicast/broadcast message frame；And group
Broadcast/sender of broadcast message frame in beacon (Beacon) frame by the caching downlink data frame mapped TIM of recipient
Correspondence position in (Traffic Indication Map) message is set as " 0 " or corresponding in TIM it is not necessary that recipient is arranged
Bit, indicate downlink data frame of the recipient without caching.
The sending device of data frame according to the present invention, access point (AP) generate multicast or broadcast wakeup message frame, are used for
Wake up multicast/broadcast wakeup message frame receiver equipment principal communication interface, so as to receiver equipment principal communication interface from
The downlink data frame of caching is obtained at AP, and the sender of multicast/broadcast message frame within a beacon frame will be under the caching of recipient
Correspondence position in row data frame mapped TIM message is set as " 0 " or the bit corresponding in TIM it is not necessary that recipient is arranged
Position, the principal communication interface of such receiver equipment is when receiving the downlink data frame of AP cachings, without intercepting the TIM in beacon frame
Information had not only met the demand of WUR so that WUR can be preferably compatible with 802.11ax, but also reduced the wave of resource
Take.
In addition, according to the above-mentioned WLAN communication device of the present invention, there can also be following additional technology special
Sign：
In the above-mentioned technical solutions, it is preferable that the device further includes：Second generation unit, for being connect in equipment principal communication
Before the caching downlink data frame that mouth receives, resource allocation message frame is generated, resource allocation message frame is the downlink data of caching
Frame distributes frequency spectrum resource.
In the technical scheme, in the principal communication interface multicast of receiver equipment or broadcast wakeup message frame sender
Before the downlink data frame of caching, resource allocation message frame is generated, which includes oriented multiple website distribution
Frequency spectrum resource reduce the possibility clashed to avoid the interference of interchannel, improve the efficiency of data transmission.
In any of the above-described technical solution, it is preferable that the device further includes：Receiving unit is used for receiving device principal communication
PS (Power Saving)-Poll power-save poll frames that interface is sent according to resource allocation message frame, to disappear to multicast/broadcast
The recipient for ceasing frame sends the downlink data frame of caching.
In the technical scheme, AP receive the principal communication interface of multicast/broadcast wakeup message frame receiver equipment according to
The PS-Poll frames that resource allocation message frame is sent are completed primary logical between AP and multicast/broadcast wakeup message frame recipient
Letter learns that the recipient of multicast/broadcast wakeup message frame is ready for receiving the preparation of data, so as to the downlink data that will be cached
Frame is sent to the recipient of multicast/broadcast message frame.
The present invention also proposes that the WLAN communication in a kind of website, including any of the above-described embodiment for website fills
It sets.Therefore with the WLAN communication device whole technique effect for being used for website in any of the above-described embodiment, herein not
It repeats again.
The present invention also proposes that the Wireless LAN in a kind of access point, including any of the above-described embodiment for access point is logical
T unit.Therefore there is the WLAN communication device whole technique effect that access point is used in any of the above-described embodiment,
Details are not described herein.
The additional aspect and advantage of the present invention will become apparent in following description section, or practice through the invention
Recognize.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 a show the flow diagram of the method for wireless local area network communication for website of one embodiment of the invention；
Fig. 1 b show the flow signal of the method for wireless local area network communication for website of another embodiment of the present invention
Figure；
Fig. 1 c show the flow signal of the method for wireless local area network communication for website of further embodiment of this invention
Figure；
Fig. 2 a show the flow signal of the method for wireless local area network communication for access point of one embodiment of the invention
Figure；
Fig. 2 b show that the flow of the method for wireless local area network communication for access point of another embodiment of the present invention is shown
It is intended to；
Fig. 2 c show that the flow of the method for wireless local area network communication for access point of further embodiment of this invention is shown
It is intended to；
Fig. 3 a show the schematic block diagram of the WLAN communication device for website of one embodiment of the invention；
Fig. 3 b show the schematic block diagram of the WLAN communication device for website of another embodiment of the present invention；
Fig. 3 c show the schematic block diagram of the WLAN communication device for website of further embodiment of this invention；
Fig. 4 a show the schematic block diagram of the WLAN communication device for access point of one embodiment of the invention；
Fig. 4 b show the schematic block of the WLAN communication device for access point of another embodiment of the present invention
Figure；
Fig. 4 c show the schematic block of the WLAN communication device for access point of further embodiment of this invention
Figure；
Fig. 5 shows the schematic block diagram of the website of one embodiment of the invention；
Fig. 6 shows the schematic block diagram of the access point of one embodiment of the invention；
Fig. 7 shows the website of one embodiment of the invention and the interaction schematic diagram of access point.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied 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.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented different from other modes described here using other, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
As shown in Figure 1a, the flow of the method for wireless local area network communication according to an embodiment of the invention for website is shown
It is intended to：This method includes：
Step 102, multicast/broadcast wakeup message frame is received, wakeup message frame is used for the principal communication interface of wake-up device,
Middle principal communication interface is used to receive the downlink data frame of sender's caching of multicast/broadcast message frame；And the principal communication of equipment connects
(Traffic Indication Map, data wait for TIM in the beacon frame for the sender that mouth does not intercept multicast/broadcast message frame
Passing instruction) information obtains the downlink data frame of caching.
In this embodiment, the secondary communication interface of website (STAs) receives multicast or broadcast wakeup message frame, and calls out this
Awake message frame is parsed, and when the sender for being resolved to multicast or broadcast wakeup message frame is cached with downlink data frame, is then called out
The principal communication interface for equipment of waking up, so as to the downlink data frame of order caching, and under the principal communication interface of equipment caching
When row data frame, without the TIM information in the beacon frame for the sender for intercepting multicast/broadcast message frame so that WUR with
802.11ax can be preferably compatible with, and not only meet the demand of WUR, but also reduce the waste of resource.
Wherein, secondary communication interface is served only for receiving wake-up association, and principal communication interface is used for the normal data communication of equipment, and calls out
The transmission power of awake frame is more much lower than the transmission power of normal frame, generally 1mW (milliwatt).
Wherein, it transmits as the communication channel of wake-up association with the communication channel of transmission normal data frames may be, for example
, can not also be the same for normal 20MHz channels, for example normal data frames are transmitted in the channel of 20MHz, and wake-up association with
It is transmitted in the nonoverlapping channel of normal data frames.
Wherein, secondary communication interface and principal communication interface can be same physical entities, only logically separate, can also
It is different physical entity, for example they can be receiver or antenna.
Wherein website can be the equipment such as smart mobile phone, tablet or PDA.
As shown in Figure 1 b, the flow of the method for wireless local area network communication according to another embodiment of the present invention for website
Schematic diagram：This method includes：
Step 102, multicast/broadcast wakeup message frame is received, wakeup message frame is used for the principal communication interface of wake-up device,
Middle principal communication interface is used to receive the downlink data frame of sender's caching of multicast/broadcast message frame；And the principal communication of equipment connects
(Traffic Indication Map, data wait for TIM in the beacon frame for the sender that mouth does not intercept multicast/broadcast message frame
Passing instruction) information obtains the downlink data frame of caching；
Wherein, if the downlink data frame that equipment is cached by principal communication interface, without supporting TIM mechanism
The downlink data frame of order caching, TIM mechanism refer to the TIM information elements that equipment intercepts institute's band in the Beacon frames that AP is broadcasted,
Position as corresponding to its AID is set as " 1 ", then it represents that it has the downlink data frame of caching, need to pass through competition within the competition phase
Mode accesses channel to obtain downlink data.
Step 104, it before the downlink data frame of the principal communication interface of equipment caching, receives multicast/broadcast and wakes up
The resource allocation message frame that message frame sender sends, resource allocation message frame are the downlink data frame distribution frequency spectrum money of caching
Source.
Wherein, resource allocation message frame is exactly for distributing the communication resource to multiple STAs, specific to being exactly in the present invention
The frequency spectrum resource for sending uplink PS-Poll frames and order caching downlink data is distributed to STAs.
In this embodiment, under the principal communication interface multicast of equipment or broadcast wakeup message frame sender caching
Before row data frame, multicast or the resource allocation message frame of broadcast wakeup message frame sender transmission, resource allocation message are received
Frame includes the frequency spectrum resource of oriented multiple website distribution reduces the possibility clashed to avoid the interference of interchannel,
Improve the efficiency of data transmission.
As illustrated in figure 1 c, according to the flow of the method for wireless local area network communication for website of further embodiment of this invention
Schematic diagram：This method includes：
Step 102, multicast/broadcast wakeup message frame is received, wakeup message frame is used for the principal communication interface of wake-up device,
Middle principal communication interface is used to receive the downlink data frame of sender's caching of multicast/broadcast message frame；And the principal communication of equipment connects
(Traffic Indication Map, data wait for TIM in the beacon frame for the sender that mouth does not intercept multicast/broadcast message frame
Passing instruction) information obtains the downlink data frame of caching；
Step 104, it before the downlink data frame of the principal communication interface of equipment caching, receives multicast/broadcast and wakes up
The resource allocation message frame that message frame sender sends, resource allocation message frame are the downlink data frame distribution frequency spectrum money of caching
Source；
Step 106, the principal communication interface of equipment sends PS (Power Saving)-Poll according to resource allocation message frame and saves
Electric poll frame obtains the downlink data frame of caching to the sender of multicast/broadcast message frame.
In this embodiment, after website receives resource allocation message frame, the principal communication interface of equipment will send one
A PS-Poll frames complete the primary communication between website and the sender of multicast or broadcast wakeup message frame, notify multicast or wide
The sender for broadcasting wakeup message frame is ready for receiving the preparation of data, to obtain the downlink data cached before from AP
Frame.
As shown in Figure 2 a, the flow of the method for wireless local area network communication according to an embodiment of the invention for access point
Schematic diagram：This method includes：
Step 202, multicast/broadcast wakeup message frame is generated, wakeup message frame is for waking up multicast/broadcast wakeup message frame
The principal communication interface of receiver equipment, wherein principal communication interface are used to receive under sender's caching of multicast/broadcast message frame
Row data frame；And the sender of multicast/broadcast message frame in beacon (Beacon) frame by the caching downlink data frame of recipient
Correspondence position in mapped TIM (Traffic Indication Map) message is set as " 0 " or exists it is not necessary that recipient is arranged
Corresponding bit in TIM, indicates downlink data frame of the recipient without caching.
In this embodiment, access point (AP) generates multicast or broadcast wakeup message frame, is waken up for waking up multicast/broadcast
The principal communication interface of the receiver equipment of message frame, so that the principal communication interface of receiver equipment obtains the downlink of caching from AP
Data frame, and the sender of multicast/broadcast message frame is within a beacon frame by the caching downlink data frame mapped TIM of recipient
Correspondence position in message is set as " 0 " or the bit corresponding in TIM it is not necessary that recipient is arranged, such receiver equipment
Principal communication interface receive AP caching downlink data frame when, without intercepting the TIM information in beacon frame so that WUR with
802.11ax can be preferably compatible with, and not only meet the demand of WUR, but also reduce the waste of resource.
Wherein, the secondary communication interface of receiver equipment is served only for receiving wake-up association, and principal communication interface is normal for equipment
Data communicate, and the transmission power of wake-up association is more much lower than the transmission power of normal frame, generally 1mW (milliwatt).
Wherein, it transmits as the communication channel of wake-up association with the communication channel of transmission normal data frames may be, for example
, can not also be the same for normal 20MHz channels, for example normal data frames are transmitted in the channel of 20MHz, and wake-up association with
It is transmitted in the nonoverlapping channel of normal data frames.
Wherein access point can be the equipment such as router.
As shown in Figure 2 b, the stream of the method for wireless local area network communication according to another embodiment of the present invention for access point
Journey schematic diagram：This method includes：
Step 202, multicast/broadcast wakeup message frame is generated, wakeup message frame is for waking up multicast/broadcast wakeup message frame
The principal communication interface of receiver equipment, wherein principal communication interface are used to receive under sender's caching of multicast/broadcast message frame
Row data frame；And the sender of multicast/broadcast message frame in beacon (Beacon) frame by the caching downlink data frame of recipient
Correspondence position in mapped TIM message is set as " 0 " or the bit corresponding in TIM it is not necessary that recipient is arranged, and indicates
Downlink data frame of the recipient without caching；
Wherein, if the downlink data frame that receiver equipment is cached by principal communication interface, without supporting TIM
Mechanism carrys out the downlink data frame of order caching, and TIM mechanism refers to the TIM information that equipment intercepts institute's band in the Beacon frames that AP is broadcasted
Element, the position as corresponding to its AID are set as " 1 ", then it represents that it has the downlink data frame of caching, need to be within the competition phase by competing
The mode striven accesses channel to obtain downlink data.
Wherein, access point be not necessarily to be arranged recipient's bit corresponding in TIM refer to will be corresponding to recipient AID
Position is set as defined retention, and for example " 0 ", certain retention can also be set to " 1 ".
Step 204, before the downlink data frame of the principal communication interface of equipment caching, resource allocation message is generated
Frame, resource allocation message frame are the downlink data frame distribution frequency spectrum resource of caching.
Wherein, resource allocation message frame is exactly for distributing the communication resource to multiple STAs, specific to being exactly in the present invention
The frequency spectrum resource for sending uplink PS-Poll frames and order caching downlink data is distributed to STAs.
In this embodiment, slow in the principal communication interface multicast of receiver equipment or broadcast wakeup message frame sender
Before the downlink data frame deposited, resource allocation message frame is generated, which includes oriented multiple website distribution
Frequency spectrum resource reduces the possibility clashed to avoid the interference of interchannel, improves the efficiency of data transmission.
As shown in Figure 2 c, according to the stream of the method for wireless local area network communication for access point of further embodiment of this invention
Journey schematic diagram：This method includes：
Step 202, multicast/broadcast wakeup message frame is generated, wakeup message frame is for waking up multicast/broadcast wakeup message frame
The principal communication interface of receiver equipment, wherein principal communication interface are used to receive under sender's caching of multicast/broadcast message frame
Row data frame；And the sender of multicast/broadcast message frame in beacon (Beacon) frame by the caching downlink data frame of recipient
Correspondence position in mapped TIM message is set as " 0 " or the bit corresponding in TIM it is not necessary that recipient is arranged, and indicates
Downlink data frame of the recipient without caching；
Step 204, before the downlink data frame of the principal communication interface of equipment caching, resource allocation message is generated
Frame, resource allocation message frame are the downlink data frame distribution frequency spectrum resource of caching；
Step 206, the PS (Power Saving)-that receiving device principal communication interface is sent according to resource allocation message frame
Poll power-save poll frames, to send the downlink data frame of caching to the recipient of multicast/broadcast message frame.
In this embodiment, AP receives the principal communication interface of multicast/broadcast wakeup message frame receiver equipment according to money
The PS-Poll frames that source assignment messages frame is sent complete the primary communication between AP and multicast/broadcast wakeup message frame recipient,
Learn that the recipient of multicast/broadcast wakeup message frame is ready for receiving the preparation of data, so as to the downlink data frame that will be cached
It is sent to the recipient of multicast/broadcast message frame.
As shown in Figure 3a, the schematic block of the WLAN communication device according to an embodiment of the invention for website
Figure：The device includes：
First receiving unit 302, for receiving multicast/broadcast wakeup message frame, wakeup message frame is for wake-up device
Principal communication interface, wherein principal communication interface are used to receive the downlink data frame of sender's caching of multicast/broadcast message frame；And it sets
TIM (Traffic Indication in the beacon frame for the sender that standby principal communication interface does not intercept multicast/broadcast message frame
Map) information obtains the downlink data frame of caching.
In this embodiment, the secondary communication interface of website (STAs) receives multicast or broadcast wakeup message frame, and calls out this
Awake message frame is parsed, and when the sender for being resolved to multicast or broadcast wakeup message frame is cached with downlink data frame, is then called out
The principal communication interface for equipment of waking up, so as to the downlink data frame of order caching, and under the principal communication interface of equipment caching
When row data frame, without the TIM information in the beacon frame for the sender for intercepting multicast/broadcast message frame so that WUR with
802.11ax can be preferably compatible with, and not only meet the demand of WUR, but also reduce the waste of resource.
Wherein, secondary communication interface is served only for receiving wake-up association, and principal communication interface is used for the normal data communication of equipment, and calls out
The transmission power of awake frame is more much lower than the transmission power of normal frame, generally 1mW (milliwatt).
Wherein, it transmits as the communication channel of wake-up association with the communication channel of transmission normal data frames may be, for example
, can not also be the same for normal 20MHz channels, for example normal data frames are transmitted in the channel of 20MHz, and wake-up association with
It is transmitted in the nonoverlapping channel of normal data frames.
Wherein, secondary communication interface and principal communication interface can be same physical entities, only logically separate, can also
It is different physical entity, for example they can be receiver or antenna.
Wherein website can be the equipment such as smart mobile phone, tablet or PDA.
As shown in Figure 3b, the signal of the WLAN communication device according to another embodiment of the present invention for website
Block diagram：The device includes：
First receiving unit 302, for receiving multicast/broadcast wakeup message frame, wakeup message frame is for wake-up device
Principal communication interface, wherein principal communication interface are used to receive the downlink data frame of sender's caching of multicast/broadcast message frame；And it sets
TIM (Traffic Indication in the beacon frame for the sender that standby principal communication interface does not intercept multicast/broadcast message frame
Map) information obtains the downlink data frame of caching；
Wherein, if the downlink data frame that equipment is cached by principal communication interface, without supporting TIM mechanism
The downlink data frame of order caching, TIM mechanism refer to the TIM information elements that equipment intercepts institute's band in the Beacon frames that AP is broadcasted,
Position as corresponding to its AID is set as " 1 ", then it represents that it has the downlink data frame of caching, need to pass through competition within the competition phase
Mode accesses channel to obtain downlink data.
Second receiving unit 304 is used for before the downlink data frame that equipment principal communication interface caches, reception group
Broadcast/broadcast message frame sender send resource allocation message frame, resource allocation message frame be caching downlink data frame distribute
Frequency spectrum resource.
Wherein, resource allocation message frame is exactly for distributing the communication resource to multiple STAs, specific to being exactly in the present invention
The frequency spectrum resource for sending uplink PS-Poll frames and order caching downlink data is distributed to STAs.In this embodiment, in equipment
Principal communication interface multicast or broadcast wakeup message frame sender caching downlink data frame before, receive multicast or broadcast
The resource allocation message frame that wakeup message frame sender sends, resource allocation message frame include the frequency spectrum of oriented multiple website distribution
Resource reduces the possibility clashed to avoid the interference of interchannel, improves the efficiency of data transmission.
As shown in Figure 3c, according to the signal of the WLAN communication device for website of further embodiment of this invention
Block diagram：The device includes：
First receiving unit 302, for receiving multicast/broadcast wakeup message frame, wakeup message frame is for wake-up device
Principal communication interface, wherein principal communication interface are used to receive the downlink data frame of sender's caching of multicast/broadcast message frame；And it sets
TIM (Traffic Indication in the beacon frame for the sender that standby principal communication interface does not intercept multicast/broadcast message frame
Map) information obtains the downlink data frame of caching；
Second receiving unit 304 is used for before the downlink data frame that equipment principal communication interface caches, reception group
Broadcast/broadcast message frame sender send resource allocation message frame, resource allocation message frame be caching downlink data frame distribute
Frequency spectrum resource；
Transmission unit 306 sends PS (Power Saving)-for equipment principal communication interface according to resource allocation message frame
Poll power-save polls frame obtains the downlink data frame of caching to the sender of multicast/broadcast message frame.
In this embodiment, after website receives resource allocation message frame, the principal communication interface of equipment will send one
A PS-Poll frames complete the primary communication between website and the sender of multicast or broadcast wakeup message frame, notify multicast or wide
The sender for broadcasting wakeup message frame is ready for receiving the preparation of data, to obtain the downlink data cached before from AP
Frame.
In specific implementation, wherein receiving unit 302 and 304 can be receiver or antenna, transmission unit 306 can be with
It is transmitter or antenna.
As shown in fig. 4 a, showing according to the WLAN communication device for access point of further embodiment of this invention
Meaning block diagram：The device includes：
First generation unit 402, for generating multicast/broadcast wakeup message frame, wakeup message frame is for waking up multicast/wide
The principal communication interface of wakeup message frame receiver equipment is broadcast, wherein principal communication interface is used to receive the hair of multicast/broadcast message frame
The downlink data frame that the side of sending caches；And the sender of multicast/broadcast message frame delaying recipient in beacon (Beacon) frame
The correspondence position deposited in downlink data frame mapped TIM (Traffic Indication Map) message is set as " 0 " or is not necessarily to
Recipient's bit corresponding in TIM is set, indicates downlink data frame of the recipient without caching.
In this embodiment, access point (AP) generates multicast or broadcast wakeup message frame, is waken up for waking up multicast/broadcast
The principal communication interface of the receiver equipment of message frame, so that the principal communication interface of receiver equipment obtains the downlink of caching from AP
Data frame, and the sender of multicast/broadcast message frame is within a beacon frame by the caching downlink data frame mapped TIM of recipient
Correspondence position in message is set as " 0 " or the bit corresponding in TIM it is not necessary that recipient is arranged, such receiver equipment
Principal communication interface receive AP caching downlink data frame when, without intercepting the TIM information in beacon frame so that WUR with
802.11ax can be preferably compatible with, and not only meet the demand of WUR, but also reduce the waste of resource.
Wherein, the secondary communication interface of receiver equipment is served only for receiving wake-up association, and principal communication interface is normal for equipment
Data communicate, and the transmission power of wake-up association is more much lower than the transmission power of normal frame, generally 1mW (milliwatt).
Wherein, it transmits as the communication channel of wake-up association with the communication channel of transmission normal data frames may be, for example
, can not also be the same for normal 20MHz channels, for example normal data frames are transmitted in the channel of 20MHz, and wake-up association with
It is transmitted in the nonoverlapping channel of normal data frames.
Wherein access point can be the equipment such as router.
As shown in Figure 4 b, the WLAN communication device according to another embodiment of the present invention for access point shows
Meaning block diagram：The device includes：
First generation unit 402, for generating multicast/broadcast wakeup message frame, wakeup message frame is for waking up multicast/wide
The principal communication interface of wakeup message frame receiver equipment is broadcast, wherein principal communication interface is used to receive the hair of multicast/broadcast message frame
The downlink data frame that the side of sending caches；And the sender of multicast/broadcast message frame delaying recipient in beacon (Beacon) frame
The correspondence position in downlink data frame mapped TIM message is deposited to be set as " 0 " or corresponding in TIM it is not necessary that recipient is arranged
Bit indicates downlink data frame of the recipient without caching；
Wherein, if the downlink data frame that receiver equipment is cached by principal communication interface, without supporting TIM
Mechanism carrys out the downlink data frame of order caching, and TIM mechanism refers to the TIM information that equipment intercepts institute's band in the Beacon frames that AP is broadcasted
Element, the position as corresponding to its AID are set as " 1 ", then it represents that it has the downlink data frame of caching, need to be within the competition phase by competing
The mode striven accesses channel to obtain downlink data.
Wherein, access point be not necessarily to be arranged recipient's bit corresponding in TIM refer to will be corresponding to recipient AID
Position is set as defined retention, and for example " 0 ", certain retention can also be set to " 1 ".
Second generation unit 404, for before the caching downlink data frame of equipment principal communication interface, generating resource
Assignment messages frame, resource allocation message frame are the downlink data frame distribution frequency spectrum resource of caching.
Wherein, resource allocation message frame is exactly for distributing the communication resource to multiple STAs, specific to being exactly in the present invention
The frequency spectrum resource for sending uplink PS-Poll frames and order caching downlink data is distributed to STAs.In this embodiment, it is receiving
Before the downlink data frame of the principal communication interface multicast of method, apparatus or broadcast wakeup message frame sender caching, resource is generated
Assignment messages frame, which includes the frequency spectrum resource of oriented multiple website distribution, to avoid the dry of interchannel
It disturbs, reduces the possibility clashed, improve the efficiency of data transmission.
As illustrated in fig. 4 c, showing according to the WLAN communication device for access point of further embodiment of this invention
Meaning block diagram：The device includes：
First generation unit 402, for generating multicast/broadcast wakeup message frame, wakeup message frame is for waking up multicast/wide
The principal communication interface of wakeup message frame receiver equipment is broadcast, wherein principal communication interface is used to receive the hair of multicast/broadcast message frame
The downlink data frame that the side of sending caches；And the sender of multicast/broadcast message frame delaying recipient in beacon (Beacon) frame
The correspondence position in downlink data frame mapped TIM message is deposited to be set as " 0 " or corresponding in TIM it is not necessary that recipient is arranged
Bit indicates downlink data frame of the recipient without caching；
Second generation unit 404, for before the caching downlink data frame of equipment principal communication interface, generating resource
Assignment messages frame, resource allocation message frame are the downlink data frame distribution frequency spectrum resource of caching
Receiving unit 406, the PS (Power sent according to resource allocation message frame for receiving device principal communication interface
Saving)-Poll power-save polls frame, to send the downlink data frame of caching to the recipient of multicast/broadcast message frame.
In this embodiment, AP receives the principal communication interface of multicast/broadcast wakeup message frame receiver equipment according to money
The PS-Poll frames that source assignment messages frame is sent complete the primary communication between AP and multicast/broadcast wakeup message frame recipient,
Learn that the recipient of multicast/broadcast wakeup message frame is ready for receiving the preparation of data, so as to the downlink data frame that will be cached
It is sent to the recipient of multicast/broadcast message frame.
In specific implementation, generation unit 402 and 404 can be signal processor, central processing unit or baseband processor
Deng receiving unit 406 can be receiver or antenna.
As shown in figure 5, the schematic block diagram of website according to an embodiment of the invention：Website 500 includes any of the above-described implementation
The WLAN communication device 502 for website in example.Therefore with the nothing for being used for website in any of the above-described embodiment
The whole technique effects of line local area network communication device 502, details are not described herein.
As shown in fig. 6, the schematic block diagram of access point according to an embodiment of the invention：Access point 600 includes any of the above-described
The WLAN communication device 602 for access point in embodiment.Therefore have in any of the above-described embodiment for connecing
The whole technique effects of WLAN communication device 602 of access point, details are not described herein.
Specific embodiment, Wireless LAN include multiple websites such as access point AP and STA1, STA2, STA3, definition
The multicast format of wake up frames enables preferably to be compatible with 802.11ax, as shown in Figure 7：
Step 1, AP sends multicast wake up frames (Multicast WUR) to STAs, wherein will be connect in wake up frames
Correspondence position in the caching downlink data frame mapped TIM message of debit is set as " 1 ", indicates that AP has caching to be cached to STAs
Downlink data, in addition AP the multicast address that data cached STAs receives data frame can be taken in wake up frames；
Step 2, AP sends resource allocation message frame (trigger frames) and gives according to the multicast address in wake up frames
STAs is sent Poll frames in resource allocation message frame and receives the resource notification of downlink data to STAs by STAs；
Step 3, after STAs receives WUR frames, WUR frame informations are parsed, being such as resolved to AP has the downlink data of caching, then
Wake up Master Communication Equipment；
Step 4, STAs is according to the resource allocation message frame received, sends poll frame (WUR-Poll) and order caching
Downlink data (Buffered downlink data).
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, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (14)
1. a kind of method for wireless local area network communication is used for website, which is characterized in that including：
Multicast/broadcast wakeup message frame is received, the wakeup message frame is used for the principal communication interface of wake-up device, wherein the master
Communication interface is used to receive the downlink data frame of sender's caching of multicast/broadcast message frame；
And the TIM information in the beacon frame of the equipment principal communication interface sender that does not intercept the multicast/broadcast message frame
To obtain the downlink data frame of the caching.
2. method for wireless local area network communication according to claim 1, which is characterized in that further include：
Before the downlink data frame cached described in the equipment principal communication interface, the multicast/broadcast message frame is received
The resource allocation message frame that sender sends, the resource allocation message frame are that the downlink data frame of the caching distributes frequency spectrum money
Source.
3. method for wireless local area network communication according to claim 2, which is characterized in that further include：
The equipment principal communication interface according to the resource allocation message frame send PS-Poll power-save polls frame to the multicast/
The sender of broadcast message frame is to obtain the downlink data frame of the caching.
4. a kind of method for wireless local area network communication is used for access point, which is characterized in that including：
Multicast/broadcast wakeup message frame is generated, the wakeup message frame is received for waking up the multicast/broadcast wakeup message frame
The principal communication interface of method, apparatus, wherein under sender's caching of the principal communication interface for receiving multicast/broadcast message frame
Row data frame；
And the sender of the multicast/broadcast message frame is within a beacon frame mapped the caching downlink data frame of the recipient
TIM message in correspondence position be set as " 0 " or the bit corresponding in TIM it is not necessary that the recipient is arranged, indicate institute
State downlink data frame of the recipient without caching.
5. method for wireless local area network communication according to claim 4, which is characterized in that further include：
Before the downlink data frame cached described in the equipment principal communication interface, resource allocation message frame is generated, it is described
Resource allocation message frame is that the downlink data frame of the caching distributes frequency spectrum resource.
6. method for wireless local area network communication according to claim 5, which is characterized in that further include：
The PS-Poll power-save poll frames that the equipment principal communication interface is sent according to the resource allocation message frame are received, so as to
The downlink data frame of the caching is sent to the recipient of the multicast/broadcast message frame.
7. a kind of WLAN communication device is used for website, which is characterized in that including：
First receiving unit, for receiving multicast/broadcast wakeup message frame, master of the wakeup message frame for wake-up device is logical
Interface is believed, wherein the principal communication interface is used to receive the downlink data frame of sender's caching of multicast/broadcast message frame；
And the TIM information in the beacon frame of the equipment principal communication interface sender that does not intercept the multicast/broadcast message frame
To obtain the downlink data frame of the caching.
8. WLAN communication device according to claim 7, which is characterized in that further include：
Second receiving unit before the downlink data frame for being cached described in the equipment principal communication interface, receives institute
The resource allocation message frame of multicast/broadcast message frame sender transmission is stated, the resource allocation message frame is under the caching
Row data frame distributes frequency spectrum resource.
9. WLAN communication device according to claim 8, which is characterized in that further include：
Transmission unit sends PS-Poll power-save polls for the equipment principal communication interface according to the resource allocation message frame
Frame obtains the downlink data frame of the caching to the sender of the multicast/broadcast message frame.
10. a kind of WLAN communication device is used for access point, which is characterized in that including：
First generation unit, for generating multicast/broadcast wakeup message frame, the wakeup message frame for wake up the multicast/
The principal communication interface of broadcast wakeup message frame receiver equipment, wherein the principal communication interface is for receiving multicast/broadcast message
The downlink data frame of sender's caching of frame；
And the sender of the multicast/broadcast message frame is within a beacon frame mapped the caching downlink data frame of the recipient
TIM message in correspondence position be set as " 0 " or the bit corresponding in TIM it is not necessary that the recipient is arranged, indicate institute
State downlink data frame of the recipient without caching.
11. WLAN communication device according to claim 10, which is characterized in that further include：
Second generation unit before the downlink data frame for being cached described in the equipment principal communication interface, generates money
Source assignment messages frame, the resource allocation message frame are that the downlink data frame of the caching distributes frequency spectrum resource.
12. WLAN communication device according to claim 11, which is characterized in that further include：
Receiving unit is saved for receiving the equipment principal communication interface according to the PS-Poll that the resource allocation message frame is sent
Electric poll frame, to send the downlink data frame of the caching to the recipient of the multicast/broadcast message frame.
13. a kind of website, which is characterized in that include the WLAN communication dress as described in any one of claim 7 to 9
It sets.
14. a kind of access point, which is characterized in that include that Wireless LAN as described in any one of claim 10 to 12 is logical
T unit.
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