CN109151958A - Communication means and communication device, the communication equipment of WLAN - Google Patents
Communication means and communication device, the communication equipment of WLAN Download PDFInfo
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- CN109151958A CN109151958A CN201710505942.9A CN201710505942A CN109151958A CN 109151958 A CN109151958 A CN 109151958A CN 201710505942 A CN201710505942 A CN 201710505942A CN 109151958 A CN109151958 A CN 109151958A
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- contention window
- window parameter
- message frame
- wakeup message
- unicast
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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
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1848—Time-out mechanisms
-
- 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
- H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/002—Transmission of channel access control information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
- H04W74/0841—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure with collision treatment
- H04W74/085—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure with collision treatment collision avoidance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- 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
Abstract
The present invention provides a kind of communication means of WLAN and communication devices, communication equipment, wherein, the communication means for the WLAN of access point apparatus includes: to send unicast wakeup message frame to site apparatus using the first contention window parameter competitive channel resource in the first moment point；When not receiving feedback of the site apparatus for the unicast wakeup message frame, the unicast wakeup message frame is retransmitted to the site apparatus using the second contention window parameter competitive channel resource in the second moment point, wherein, first contention window parameter and second contention window parameter are any contention window parameter in the first contention window parameter section, and the threshold value of first contention window parameter and second contention window parameter is identical.According to the technical solution of the present invention, it can be effectively reduced equipment power dissipation, so that equipment more power saving, meets the needs of IEEE 802.11ba.
Description
Technical field
The present invention relates to field of communication technology, in particular to the communication means of WLAN, WLAN
Communication device and communication equipment.
Background technique
In July, 2016, IEEE (Institute of Electrical and Electronics Engineers, electricity
Gas and Electronic Engineering Association) 802.11 set up next-generation Wi-Fi (Wireless Fidelity, Wireless Fidelity) technology
Study group WUR (Wake Up Receiver), i.e. IEEE 802.11.ba, in terms of being mainly used in Internet of Things, in order to
The power consumption for as much as possible saving equipment, most importantly in order to make to receive wake-up frame (wakeup message frame, i.e. WUR message
Frame) equipment as much as possible save the power consumption of equipment, power consumption needed for wherein equipment receives wake-up frame is not more than 1mW.
Currently, when access point (AP, Access Point) equipment sends unicast to website (STA, Station) equipment
When wake-up frame, if not receiving site apparatus to the response frame of the wake-up frame, AP equipment can determine what it sent
Wake-up frame needs to retransmit, and still, the re-transmission of wake-up frame still uses existing random Back-off (rollback) mechanism, equipment
Power consumption and existing retransmission mechanism in power consumption may as many, in addition recipient wait time it is also too long, cannot reach
Save the purpose of equipment power dissipation.
Therefore, when AP equipment, which sends unicast wake-up frame to site apparatus, to fail, unicast wake-up how is retransmitted
Frame, so that equipment more power saving, meets the needs of IEEE802.11ba, becomes technology urgently to be resolved to reduce equipment power dissipation
Problem.
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, when access point apparatus retransmits unicast wakeup message frame to site apparatus, using random back CW (Contention
Window, competition window) mechanism, it can be effectively reduced equipment power dissipation, so that equipment more power saving, meets IEEE
The demand of 802.11ba.
In view of this, according to the first aspect of the invention, a kind of communication means of WLAN is proposed, for accessing
Point device, the communication means of the WLAN include: in the first moment point using the first contention window parameter competitive channel
Resource sends unicast wakeup message frame to site apparatus；The unicast wakeup message frame is directed to when not receiving the site apparatus
Feedback when, the second moment point using the second contention window parameter competitive channel resource to the site apparatus retransmit institute
State unicast wakeup message frame, wherein first contention window parameter and second contention window parameter are the first competition
Any contention window parameter in window parameter section, and first contention window parameter and second contention window parameter
Threshold value it is identical.
In the technical scheme, it is lost when access point apparatus determines that the unicast wakeup message frame that it sends to site apparatus is sent
When losing, i.e., unicast wakeup message is sent to site apparatus using the first contention window parameter competitive channel resource in the first moment point
It, then can be in the second moment point using the second competition when being not received by the respective feedback of site apparatus in the certain time length after frame
Window parameter competitive channel resource retransmits the unicast wakeup message frame to the site apparatus, so that the secondary communication of site apparatus
Interface wakes up its principal communication interface when being successfully received the unicast wakeup message frame to receive access point apparatus as its caching
Downlink data, so that equipment power dissipation is effectively reduced, so that equipment more power saving, meets the needs of IEEE802.11ba；Wherein,
Second contention window parameter can be any competition in the first contention window parameter section where the first contention window parameter
Window parameter, further, two contention window parameters can be taken as identical threshold value, for example, use in the first moment point
The threshold value of CW parameter is 10, then the CW parameter that uses of the first moment point is any one number randomly selected in 1 to 10, example
As its CW parameter be 3, and the second moment point use same CW parameter threshold value, be also 10, then the second moment point use
CW parameter be any one number randomly selected in 1 to 10, be for example 4, and same CW ginseng may be randomly selected twice
Number, in this way, not increasing the threshold value of the CW parameter of each moment point, can be effectively saved the re-transmission time of unicast wakeup message frame
And the waiting time of recipient, retransmission efficiency is improved, equipment power dissipation is also saved.
In the above-mentioned technical solutions, it is preferable that using the second contention window parameter competitive channel resource to described
After site apparatus retransmits the unicast wakeup message frame, further includes: statistics retransmits the transmission of the unicast wakeup message frame
Number；Determine whether to continue to retransmit the list to the site apparatus according to the comparison result of the number of transmissions and preset threshold
Broadcast wakeup message frame.
In the technical scheme, make equipment more power saving to further decrease equipment power dissipation, can be limited to same
The number of unicast wakeup message frame is retransmitted in a contention window parameter section to site apparatus, it specifically, can be in first time weight
It spreads after the beginning, statistics retransmits the number of transmissions of the unicast wakeup message frame, i.e., every re-transmission once updates the transmission time successively counted
Number, is then compared with preset threshold (such as 3 times, specific value is depending on actual conditions) to be according to comparison result determination
It is no to continue to retransmit the unicast wakeup message frame, it can continue to attempt to retransmit the unicast wakeup message if without departing from the preset threshold
Otherwise frame can stop retransmitting the unicast wakeup message frame to site apparatus, while the threshold value for increasing CW parameter can also be used
Method is retransmitted, and for example the threshold value of a certain wakeup message frame number of retransmissions is 3, the case where using the threshold value of same CW parameter
Under all without transmission success, then can be retransmitted using the threshold value that existing Back-off mechanism increases CW parameter.
In any of the above-described technical solution, it is preferable that the communication means of WLAN further include: using described second
After contention window parameter contention access channel retransmits the unicast wakeup message frame failure, by first contention window parameter area
Between add as the second contention window parameter section, using any competition window ginseng in second contention window parameter section
Number competitive channel resource retransmits the unicast wakeup message frame.
In the technical scheme, when taken in the first contention window parameter section the second contention window parameter retransmit unicast call out
When awake message frame can not succeed, then the first competition window section can be added as the second contention window parameter section, continuation
Any contention window parameter competitive channel resource in the second contention window parameter section is taken to retransmit the unicast wakeup message frame,
To improve the probability for retransmitting unicast wakeup message frame to site apparatus.
It further can be by the transmission of the re-transmission unicast wakeup message frame counted in the first contention window parameter section
Number zero, and counted again when being retransmitted using the contention window parameter in the second contention window parameter section, with
It is compared according to preset threshold, to determine whether to continue to retransmit the unicast wakeup message to site apparatus according to comparison result
Frame.
In any of the above-described technical solution, it is preferable that be spaced between second moment point and first moment point
Shi Changwei described access point equipment waits the site apparatus for the overtime duration of the feedback of the unicast wakeup message frame.
In the technical scheme, when retransmitting the second moment point of unicast wakeup message frame to site apparatus with preceding first
Interval duration between punctum should be at least the time-out for waiting site apparatus to carry out feedback response for the unicast wakeup message frame
Duration, further, so-called time-out duration refer to the duration of equipment inter-process unicast wakeup message frame, slave station point device
Secondary communication interface be transformed into the sum of the duration of its principal communication interface and the duration three of contention access channel, can so protect
Card determines the need for retransmitting the accuracy of the result of unicast wakeup message frame, so that unnecessary equipment power dissipation is avoided, so that
Equipment more power saving, meets the needs of IEEE 802.11ba.
According to the second aspect of the invention, it is also proposed that a kind of communication device of WLAN is used for access point apparatus,
The communication device of the WLAN includes that sending module and the sending module are used for: in the first moment point using the
One contention window parameter competitive channel resource sends unicast wakeup message frame to site apparatus；When not receiving the site apparatus
For the unicast wakeup message frame feedback when, the second moment point using the second contention window parameter competitive channel resource to
The site apparatus retransmits the unicast wakeup message frame, wherein first contention window parameter and described second competing
Striving window parameter is any contention window parameter in the first contention window parameter section, and first contention window parameter
And the threshold value of second contention window parameter is identical.
In the technical scheme, it is lost when access point apparatus determines that the unicast wakeup message frame that it sends to site apparatus is sent
When losing, i.e., unicast wakeup message is sent to site apparatus using the first contention window parameter competitive channel resource in the first moment point
It, then can be in the second moment point using the second competition when being not received by the respective feedback of site apparatus in the certain time length after frame
Window parameter competitive channel resource retransmits the unicast wakeup message frame to the site apparatus, so that the secondary communication of site apparatus
Interface wakes up its principal communication interface when being successfully received the unicast wakeup message frame to receive access point apparatus as its caching
Downlink data, so that equipment power dissipation is effectively reduced, so that equipment more power saving, meets the needs of IEEE 802.11ba；Its
In, the second contention window parameter can be any competing in the first contention window parameter section where the first contention window parameter
Window parameter is striven, further, two contention window parameters can be taken as identical threshold value, for example, use in the first moment point
The threshold value of CW parameter be 10, then the CW parameter that uses of the first moment point is any one number randomly selected in 1 to 10,
For example its CW parameter is 3, and uses the threshold value of same CW parameter in the second moment point, is also 10, then the second moment point is adopted
CW parameter is any one number randomly selected in 1 to 10, is for example 4, and may randomly select same CW twice
Parameter, in this way, not increasing the threshold value of the CW parameter of each moment point, when can be effectively saved the re-transmission of unicast wakeup message frame
Between and recipient waiting time, improve retransmission efficiency, also save equipment power dissipation.
In the above-mentioned technical solutions, it is preferable that the communication device of the WLAN further include: statistical module is used for
In the sending module using the second contention window parameter competitive channel resource to described in site apparatus retransmission
After unicast wakeup message frame, statistics retransmits the number of transmissions of the unicast wakeup message frame；Determining module, for according to the system
The number of transmissions of meter module statistics and the comparison result of preset threshold determine whether to continue to retransmit institute to the site apparatus
State unicast wakeup message frame.
In the technical scheme, make equipment more power saving to further decrease equipment power dissipation, can be limited to same
The number of unicast wakeup message frame is retransmitted in a contention window parameter section to site apparatus, it specifically, can be in first time weight
It spreads after the beginning, statistics retransmits the number of transmissions of the unicast wakeup message frame, i.e., every re-transmission once updates the transmission time successively counted
Number, is then compared with preset threshold (such as 3 times, specific value is depending on actual conditions) to be according to comparison result determination
It is no to continue to retransmit the unicast wakeup message frame, it can continue to attempt to retransmit the unicast wakeup message if without departing from the preset threshold
Otherwise frame can stop retransmitting the unicast wakeup message frame to site apparatus, while the threshold value for increasing CW parameter can also be used
Method is retransmitted, and for example the threshold value of a certain wakeup message frame number of retransmissions is 3, the case where using the threshold value of same CW parameter
Under all without transmission success, then can be retransmitted using the threshold value that existing Back-off mechanism increases CW parameter.
In any of the above-described technical solution, it is preferable that the communication device of the WLAN further include: processing module,
It, will be described for after retransmitting unicast wakeup message frame failure using the second contention window parameter contention access channel
First contention window parameter section is added as the second contention window parameter section, to use second contention window parameter section
In any contention window parameter competitive channel resource retransmit the unicast wakeup message frame.
In the technical scheme, when taken in the first contention window parameter section the second contention window parameter retransmit unicast call out
When awake message frame can not succeed, then the first competition window section can be added as the second contention window parameter section, continuation
Any contention window parameter competitive channel resource in the second contention window parameter section is taken to retransmit the unicast wakeup message frame,
To improve the probability for retransmitting unicast wakeup message frame to site apparatus.
It further can be by the transmission of the re-transmission unicast wakeup message frame counted in the first contention window parameter section
Number zero, and counted again when being retransmitted using the contention window parameter in the second contention window parameter section, with
It is compared according to preset threshold, to determine whether to continue to retransmit the unicast wakeup message to site apparatus according to comparison result
Frame.
In any of the above-described technical solution, it is preferable that be spaced between second moment point and first moment point
Shi Changwei described access point equipment waits the site apparatus for the overtime duration of the feedback of the unicast wakeup message frame.
In the technical scheme, when retransmitting the second moment point of unicast wakeup message frame to site apparatus with preceding first
Interval duration between punctum should be at least the time-out for waiting site apparatus to carry out feedback response for the unicast wakeup message frame
Duration, further, so-called time-out duration refer to the duration of equipment inter-process unicast wakeup message frame, slave station point device
Secondary communication interface be transformed into the sum of the duration of its principal communication interface and the duration three of contention access channel, can so protect
Card determines the need for retransmitting the accuracy of the result of unicast wakeup message frame, so that unnecessary equipment power dissipation is avoided, so that
Equipment more power saving, meets the needs of IEEE 802.11ba.
According to the third aspect of the invention we, it is also proposed that a kind of communication means of WLAN is used for site apparatus, institute
The communication means for stating WLAN includes: to receive access point apparatus to compete in the first moment point using the first contention window parameter
After channel resource sends the failure of unicast wakeup message frame, the second contention window parameter contention access channel is used in the second moment point
The unicast wakeup message frame retransmitted；Institute is waken up according to the unicast wakeup message frame that described access point equipment retransmits
State the principal communication interface of site apparatus, wherein second contention window parameter is where first contention window parameter
Any contention window parameter in first contention window parameter section, and first contention window parameter and second competition
The threshold value of window parameter is identical or second contention window parameter is greater than the of first contention window parameter section
Any contention window parameter in two contention window parameter sections.
In the technical scheme, when reception access point apparatus is believed in the first moment point using the competition of the first contention window parameter
When the unicast wakeup message frame failure that road resource is sent, access point apparatus is received in the second moment point and is joined using the second competition window
The unicast wakeup message frame that number competitive channel resource retransmits, and when receiving successfully, that is, receiving unicast wake-up
Response frame has successfully been fed back to access point apparatus after message frame, it can have been waken up according to the unicast wakeup message frame being successfully received
Principal communication interface come receive access point apparatus for its caching downlink data, so that equipment power dissipation is effectively reduced, so that equipment
More power saving meets the needs of IEEE 802.11ba.
Wherein, the second contention window parameter can be the first contention window parameter section where the first contention window parameter
Interior any contention window parameter, further, two contention window parameters can be taken as identical threshold value, for example, first
The threshold value for the CW parameter that moment point uses is 10, then the CW parameter that uses of the first moment point is randomly selecting in 1 to 10
Any one number, for example its CW parameter is 3, and uses the threshold value of same CW parameter in the second moment point, is also 10, then the
The CW parameter that two moment points use is for example 4, and may select at random twice for any one number randomly selected in 1 to 10
Same CW parameter is taken, in this way, not increasing the threshold value of the CW parameter of each moment point, unicast wakeup message can be effectively saved
The re-transmission time of frame and the waiting time of recipient improve retransmission efficiency, also save equipment power dissipation；And consider access device
The unicast wakeup message frame can not be still successfully transmitted when value in the first contention window parameter section, then it can be more competing than first
It strives value in the second big contention window parameter section of window parameter section to be retransmitted, further, access point apparatus can be with
It is limited to the number of transmissions retransmitted in each contention window parameter section, is disappeared in this way, unicast wake-up can be effectively saved
The re-transmission time of frame is ceased, retransmission efficiency is improved, so that further decreasing equipment power dissipation makes equipment more power saving.
Further, access point apparatus retransmit unicast wakeup message frame the second moment point and preceding first moment point it
Between interval duration should be at least its wait site apparatus for the unicast wakeup message frame carry out feedback response overtime duration,
Further, so-called overtime duration refers to time of the duration of equipment inter-process unicast wakeup message frame, slave station point device
Communication interface is transformed into the sum of the duration of its principal communication interface and the duration three of contention access channel, can so guarantee really
The accuracy of the fixed result for whether needing to retransmit unicast wakeup message frame, so that unnecessary equipment power dissipation is avoided, so that equipment
More power saving meets the needs of IEEE 802.11ba.
According to the fourth aspect of the invention, it is also proposed that a kind of communication device of WLAN is used for site apparatus, institute
The communication device for stating WLAN includes: receiving module, competing using first in the first moment point for receiving access point apparatus
After striving the transmission unicast wakeup message frame failure of window parameter competitive channel resource, joined in the second moment point using the second competition window
The unicast wakeup message frame that number contention access channel retransmits；Wake-up module, for according to the received institute of the receiving module
The unicast wakeup message frame for stating access point apparatus retransmission wakes up the principal communication interface of the site apparatus, wherein institute
It is any competing in the first contention window parameter section where first contention window parameter to state the second contention window parameter
Strive window parameter, and the threshold value of first contention window parameter and second contention window parameter is identical or described
Two contention window parameters are greater than any competing in the second contention window parameter section in first contention window parameter section
Strive window parameter.
In the technical scheme, when reception access point apparatus is believed in the first moment point using the competition of the first contention window parameter
When the unicast wakeup message frame failure that road resource is sent, access point apparatus is received in the second moment point and is joined using the second competition window
The unicast wakeup message frame that number competitive channel resource retransmits, and when receiving successfully, that is, receiving unicast wake-up
Response frame has successfully been fed back to access point apparatus after message frame, it can have been waken up according to the unicast wakeup message frame being successfully received
Principal communication interface come receive access point apparatus for its caching downlink data, so that equipment power dissipation is effectively reduced, so that equipment
More power saving meets the needs of IEEE 802.11ba.
Wherein, the second contention window parameter can be the first contention window parameter section where the first contention window parameter
Interior any contention window parameter, further, two contention window parameters can be taken as identical threshold value, for example, first
The threshold value for the CW parameter that moment point uses is 10, then the CW parameter that uses of the first moment point is randomly selecting in 1 to 10
Any one number, for example its CW parameter is 3, and uses the threshold value of same CW parameter in the second moment point, is also 10, then the
The CW parameter that two moment points use is for example 4, and may select at random twice for any one number randomly selected in 1 to 10
Same CW parameter is taken, in this way, not increasing the threshold value of the CW parameter of each moment point, unicast wakeup message can be effectively saved
The re-transmission time of frame and the waiting time of recipient improve retransmission efficiency, also save equipment power dissipation；And consider access device
The unicast wakeup message frame can not be still successfully transmitted when value in the first contention window parameter section, then it can be more competing than first
It strives value in the second big contention window parameter section of window parameter section to be retransmitted, further, access point apparatus can be with
It is limited to the number of transmissions retransmitted in each contention window parameter section, is disappeared in this way, unicast wake-up can be effectively saved
The re-transmission time of frame is ceased, retransmission efficiency is improved, so that further decreasing equipment power dissipation makes equipment more power saving.
Further, access point apparatus retransmit unicast wakeup message frame the second moment point and preceding first moment point it
Between interval duration should be at least its wait site apparatus for the unicast wakeup message frame carry out feedback response overtime duration,
Further, so-called overtime duration refers to time of the duration of equipment inter-process unicast wakeup message frame, slave station point device
Communication interface is transformed into the sum of the duration of its principal communication interface and the duration three of contention access channel, can so guarantee really
The accuracy of the fixed result for whether needing to retransmit unicast wakeup message frame, so that unnecessary equipment power dissipation is avoided, so that equipment
More power saving meets the needs of IEEE 802.11ba.
According to the fifth aspect of the invention, it is also proposed that a kind of communication equipment, comprising: the nothing as described in above-mentioned second aspect
The communication device of line local area network；And/or the communication device of the WLAN as described in above-mentioned fourth aspect.
Above-mentioned technical proposal through the invention, when access point apparatus retransmits unicast wakeup message frame to site apparatus,
Using random back CW mechanism, it can be effectively reduced equipment power dissipation, so that equipment more power saving, meets IEEE 802.11ba
Demand.
Detailed description of the invention
Fig. 1 shows the process of the communication means of the WLAN for access point apparatus of first embodiment of the invention
Schematic diagram；
Fig. 2 shows the processes of the communication means of the WLAN for access point apparatus of second embodiment of the invention
Schematic diagram；
Fig. 3 shows the schematic block of the communication device of the WLAN for access point apparatus of the embodiment of the present invention
Figure；
Fig. 4 shows the process signal of the communication means of the WLAN for site apparatus of the embodiment of the present invention
Figure；
Fig. 5 shows the schematic block diagram of the communication device of the WLAN for site apparatus of the embodiment of 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 process of the communication means of the WLAN for access point apparatus of first embodiment of the invention
Schematic diagram.
As shown in Figure 1, the communication means of the WLAN for access point apparatus according to a first embodiment of the present invention,
Specifically include following below scheme step:
Step 102, it is sent using the first contention window parameter competitive channel resource to site apparatus in the first moment point single
Broadcast wakeup message frame.
Step 104, when not receiving feedback of the site apparatus for the unicast wakeup message frame, at second
Punctum retransmits the unicast wakeup message frame to the site apparatus using the second contention window parameter competitive channel resource,
Wherein, first contention window parameter and second contention window parameter are appointing in the first contention window parameter section
One contention window parameter, and the threshold value of first contention window parameter and second contention window parameter is identical.
In this embodiment, when the unicast wakeup message frame that access point apparatus determines that it sends to site apparatus sends failure
When, i.e., unicast wakeup message frame is sent to site apparatus using the first contention window parameter competitive channel resource in the first moment point
When being not received by the respective feedback of site apparatus in certain time length afterwards, then the second contention window can be used in the second moment point
Mouth parameter competitive channel resource retransmits the unicast wakeup message frame to the site apparatus, so that the secondary communication of site apparatus connects
Mouth wakes up its principal communication interface when being successfully received the unicast wakeup message frame to receive access point apparatus as under its caching
Row data, so that equipment power dissipation is effectively reduced, so that equipment more power saving, meets the needs of IEEE 802.11ba；Wherein,
Second contention window parameter can be any competition in the first contention window parameter section where the first contention window parameter
Window parameter, further, two contention window parameters can be taken as identical threshold value, for example, use in the first moment point
The threshold value of CW parameter is 10, then the CW parameter that uses of the first moment point is any one number randomly selected in 1 to 10, example
As its CW parameter be 3, and the second moment point use same CW parameter threshold value, be also 10, then the second moment point use
CW parameter be any one number randomly selected in 1 to 10, be for example 4, and same CW ginseng may be randomly selected twice
Number, in this way, not increasing the threshold value of the CW parameter of each moment point, can be effectively saved the re-transmission time of unicast wakeup message frame
And the waiting time of recipient, retransmission efficiency is improved, equipment power dissipation is also saved.
As shown in Fig. 2, the communication means of the WLAN for access point apparatus according to a second embodiment of the present invention,
It includes step 202~step 204 and the content of above-mentioned step 102~step 104 shown in FIG. 1 it is essentially identical, further
Ground further includes following process step:
Step 206, statistics retransmits the number of transmissions of the unicast wakeup message frame.
Step 208, determine whether to continue to set to the website according to the comparison result of the number of transmissions and preset threshold
It is standby to retransmit the unicast wakeup message frame.
In this embodiment, make equipment more power saving to further decrease equipment power dissipation, can be limited to same
The number of unicast wakeup message frame is retransmitted in contention window parameter section to site apparatus, specifically, can be retransmitted in first time
After beginning, statistics retransmits the number of transmissions of the unicast wakeup message frame, i.e., every re-transmission once updates the number of transmissions successively counted,
Then it is compared with preset threshold (such as 3 times, specific value is depending on actual conditions) to be determined whether according to comparison result
Continue to retransmit the unicast wakeup message frame, can continue to attempt to retransmit the unicast wakeup message if without departing from the preset threshold
Otherwise frame can stop retransmitting the unicast wakeup message frame to site apparatus, while the threshold value for increasing CW parameter can also be used
Method is retransmitted, and for example the threshold value of a certain wakeup message frame number of retransmissions is 3, the case where using the threshold value of same CW parameter
Under all without transmission success, then can be retransmitted using the threshold value that existing Back-off mechanism increases CW parameter.
Further, in any of the above-described embodiment, the communication means of WLAN further include: using described second
After contention window parameter contention access channel retransmits the unicast wakeup message frame failure, by first contention window parameter area
Between add as the second contention window parameter section, using any competition window ginseng in second contention window parameter section
Number competitive channel resource retransmits the unicast wakeup message frame.
In this embodiment, when taken in the first contention window parameter section the second contention window parameter retransmit unicast wake up
When message frame can not succeed, then the first competition window section can be added as the second contention window parameter section, continue to take
Any contention window parameter competitive channel resource in the second contention window parameter section retransmits the unicast wakeup message frame, with
Improve the probability that unicast wakeup message frame is retransmitted to site apparatus；For example the first contention window parameter section can be [1,10],
And the second contention window parameter section then can be [1,15].
It further can be by the transmission of the re-transmission unicast wakeup message frame counted in the first contention window parameter section
Number zero, and counted again when being retransmitted using the contention window parameter in the second contention window parameter section, with
It is compared according to preset threshold, to determine whether to continue to retransmit the unicast wakeup message to site apparatus according to comparison result
Frame.
Further, it in any of the above-described embodiment, is spaced between second moment point and first moment point
Shi Changwei described access point equipment waits the site apparatus for the overtime duration of the feedback of the unicast wakeup message frame.
In this embodiment, the second moment point to site apparatus re-transmission unicast wakeup message frame and preceding first moment
When interval duration between point should be at least the time-out for waiting site apparatus to carry out feedback response for the unicast wakeup message frame
Long, further, so-called time-out duration refers to the duration of equipment inter-process unicast wakeup message frame, slave station point device
Secondary communication interface is transformed into the sum of the duration of its principal communication interface and the duration three of contention access channel, can so guarantee
The accuracy for determining the need for retransmitting the result of unicast wakeup message frame, so that unnecessary equipment power dissipation is avoided, so that setting
Standby more power saving, meets the needs of IEEE 802.11ba.
Wherein, the executing subject of Fig. 1 and communication means shown in Fig. 2 can be access point apparatus and site apparatus composition
Access point apparatus in network, for example router, server or smart phone with Wi-Fi interface.
Fig. 3 shows the schematic block of the communication device of the WLAN for access point apparatus of the embodiment of the present invention
Figure.
As shown in figure 3, the communication device 30 of the WLAN according to an embodiment of the present invention for access point apparatus wraps
It includes sending module 302 and the sending module 302 is used for:
Unicast wake-up is sent to site apparatus using the first contention window parameter competitive channel resource in the first moment point to disappear
Cease frame；When not receiving the site apparatus and being directed to the feedback of the unicast wakeup message frame, in the second moment point using the
Two contention window parameter competitive channel resources retransmit the unicast wakeup message frame to the site apparatus, wherein described
First contention window parameter and second contention window parameter are any contention window in the first contention window parameter section
Mouth parameter, and the threshold value of first contention window parameter and second contention window parameter is identical.
In this embodiment, when the unicast wakeup message frame that access point apparatus determines that it sends to site apparatus sends failure
When, i.e., unicast wakeup message frame is sent to site apparatus using the first contention window parameter competitive channel resource in the first moment point
When being not received by the respective feedback of site apparatus in certain time length afterwards, then the second contention window can be used in the second moment point
Mouth parameter competitive channel resource retransmits the unicast wakeup message frame to the site apparatus, so that the secondary communication of site apparatus connects
Mouth wakes up its principal communication interface when being successfully received the unicast wakeup message frame to receive access point apparatus as under its caching
Row data, so that equipment power dissipation is effectively reduced, so that equipment more power saving, meets the needs of IEEE 802.11ba；Wherein,
Second contention window parameter can be any competition in the first contention window parameter section where the first contention window parameter
Window parameter, further, two contention window parameters can be taken as identical threshold value, for example, use in the first moment point
The threshold value of CW parameter is 10, then the CW parameter that uses of the first moment point is any one number randomly selected in 1 to 10, example
As its CW parameter be 3, and the second moment point use same CW parameter threshold value, be also 10, then the second moment point use
CW parameter be any one number randomly selected in 1 to 10, be for example 4, and same CW ginseng may be randomly selected twice
Number, in this way, not increasing the threshold value of the CW parameter of each moment point, can be effectively saved the re-transmission time of unicast wakeup message frame
And the waiting time of recipient, retransmission efficiency is improved, equipment power dissipation is also saved.
Further, in the above-described embodiments, the communication device of the WLAN further include: 304 He of statistical module
Determining module 306.
Wherein, the statistical module 304 is used to compete in the sending module 302 using second contention window parameter
After channel resource retransmits the unicast wakeup message frame to the site apparatus, statistics retransmits the unicast wakeup message frame
The number of transmissions；The number of transmissions and preset threshold that the determining module 306 is used to be counted according to the statistical module 304
Comparison result determine whether to continue to retransmit the unicast wakeup message frame to the site apparatus.
In this embodiment, make equipment more power saving to further decrease equipment power dissipation, can be limited to same
The number of unicast wakeup message frame is retransmitted in contention window parameter section to site apparatus, specifically, can be retransmitted in first time
After beginning, statistics retransmits the number of transmissions of the unicast wakeup message frame, i.e., every re-transmission once updates the number of transmissions successively counted,
Then it is compared with preset threshold (such as 3 times, specific value is depending on actual conditions) to be determined whether according to comparison result
Continue to retransmit the unicast wakeup message frame, can continue to attempt to retransmit the unicast wakeup message if without departing from the preset threshold
Otherwise frame can stop retransmitting the unicast wakeup message frame to site apparatus, while the threshold value for increasing CW parameter can also be used
Method is retransmitted, and for example the threshold value of a certain wakeup message frame number of retransmissions is 3, the case where using the threshold value of same CW parameter
Under all without transmission success, then can be retransmitted using the threshold value that existing Back-off mechanism increases CW parameter.
Further, in any of the above-described embodiment, the communication device of the WLAN further include: processing module
308, it is used for after retransmitting the unicast wakeup message frame failure using the second contention window parameter contention access channel, it will
First contention window parameter section is added as the second contention window parameter section, to use second contention window parameter
Any contention window parameter competitive channel resource in section retransmits the unicast wakeup message frame.
In this embodiment, when taken in the first contention window parameter section the second contention window parameter retransmit unicast wake up
When message frame can not succeed, then the first competition window section can be added as the second contention window parameter section, continue to take
Any contention window parameter competitive channel resource in the second contention window parameter section retransmits the unicast wakeup message frame, with
Improve the probability that unicast wakeup message frame is retransmitted to site apparatus；For example the first contention window parameter section can be [1,10],
And the second contention window parameter section then can be [1,15].
It further can be by the transmission of the re-transmission unicast wakeup message frame counted in the first contention window parameter section
Number zero, and counted again when being retransmitted using the contention window parameter in the second contention window parameter section, with
It is compared according to preset threshold, to determine whether to continue to retransmit the unicast wakeup message to site apparatus according to comparison result
Frame.
Further, it in any of the above-described embodiment, is spaced between second moment point and first moment point
Shi Changwei described access point equipment waits the site apparatus for the overtime duration of the feedback of the unicast wakeup message frame.
In this embodiment, the second moment point to site apparatus re-transmission unicast wakeup message frame and preceding first moment
When interval duration between point should be at least the time-out for waiting site apparatus to carry out feedback response for the unicast wakeup message frame
Long, further, so-called time-out duration refers to the duration of equipment inter-process unicast wakeup message frame, slave station point device
Secondary communication interface is transformed into the sum of the duration of its principal communication interface and the duration three of contention access channel, can so guarantee
The accuracy for determining the need for retransmitting the result of unicast wakeup message frame, so that unnecessary equipment power dissipation is avoided, so that setting
Standby more power saving, meets the needs of IEEE 802.11ba.
In specific implementation, statistical module 304, determining module 306 and processing module 308 can be central processing unit or base
Provided with processor etc.；Sending module 302 can be transmitter or antenna etc..
Fig. 4 shows the process signal of the communication means of the WLAN for site apparatus of the embodiment of the present invention
Figure.
As shown in figure 4, the communication means of the WLAN according to an embodiment of the present invention in site apparatus, specifically includes
Following below scheme step:
Step 402, access point apparatus is received to send out in the first moment point using the first contention window parameter competitive channel resource
After sending the failure of unicast wakeup message frame, in the second moment point using described in the re-transmission of the second contention window parameter contention access channel
Unicast wakeup message frame.
Step 404, the unicast wakeup message frame retransmitted according to described access point equipment wakes up the website and sets
Standby principal communication interface.
Wherein, second contention window parameter is the first contention window parameter where first contention window parameter
Any contention window parameter in section, and the threshold value phase of first contention window parameter and second contention window parameter
Together or second contention window parameter is the second contention window parameter area greater than first contention window parameter section
Interior any contention window parameter.
In this embodiment, when reception access point apparatus uses the first contention window parameter competitive channel in the first moment point
When the unicast wakeup message frame failure that resource is sent, access point apparatus is received in the second moment point and uses the second contention window parameter
The unicast wakeup message frame that competitive channel resource retransmits disappears receiving the unicast and wake up and when receiving successfully
Response frame has successfully been fed back to access point apparatus after breath frame, its master can have been waken up according to the unicast wakeup message frame being successfully received
Communication interface come receive access point apparatus for its caching downlink data, so that equipment power dissipation is effectively reduced, so that equipment is more
Add power saving, meets the needs of IEEE 802.11ba.
Wherein, the second contention window parameter can be the first contention window parameter section where the first contention window parameter
Interior any contention window parameter, further, two contention window parameters can be taken as identical threshold value, for example, first
The threshold value for the CW parameter that moment point uses is 10, then the CW parameter that uses of the first moment point is randomly selecting in 1 to 10
Any one number, for example its CW parameter is 3, and uses the threshold value of same CW parameter in the second moment point, is also 10, then the
The CW parameter that two moment points use is for example 4, and may select at random twice for any one number randomly selected in 1 to 10
Same CW parameter is taken, in this way, not increasing the threshold value of the CW parameter of each moment point, unicast wakeup message can be effectively saved
The re-transmission time of frame and the waiting time of recipient improve retransmission efficiency, also save equipment power dissipation；And consider access device
The unicast wakeup message frame can not be still successfully transmitted when value in the first contention window parameter section, then it can be more competing than first
It strives value in the second big contention window parameter section of window parameter section to be retransmitted, for example the first contention window parameter section
Can be [1,10], and the second contention window parameter section then can be [1,15], then further, access point apparatus can limit
It is scheduled on the number of transmissions retransmitted in each contention window parameter section, in this way, unicast wakeup message can be effectively saved
The re-transmission time of frame improves retransmission efficiency, so that further decreasing equipment power dissipation makes equipment more power saving.
Further, in the above-described embodiments, access point apparatus retransmit unicast wakeup message frame the second moment point with
Interval duration between the first preceding moment point should be at least it and site apparatus is waited to carry out instead for the unicast wakeup message frame
Present response overtime duration, further, it is so-called time-out duration refer to equipment inter-process unicast wakeup message frame when
Long, slave station point device secondary communication interface be transformed into its principal communication interface duration and contention access channel duration three it
With can so guarantee to determine the need for the accuracy for retransmitting the result of unicast wakeup message frame, to avoid unnecessary
Equipment power dissipation, so that equipment more power saving, meets the needs of IEEE 802.11ba.
Wherein, the executing subject of communication means shown in Fig. 4 can be the website in the network of access point and website composition
Equipment, for example equipment such as smart phone or PDA (Personal Digital Assistant, palm PC).
Wherein, the interface that site apparatus receives wakeup message frame is next communication interface, and receives the mesh of wakeup message frame
Be exactly in order to wake up the principal communication interface of site apparatus, to be used to carry out communication to obtain access point apparatus as its caching
Downlink data frame, it may be physically separate, it is also possible to divide in logic that specifically primary and secondary communication interface, which can be antenna,
It opens.
Fig. 5 shows the schematic block diagram of the communication device of the WLAN for site apparatus of the embodiment of the present invention.
As shown in figure 5, the communication device 50 of the WLAN according to an embodiment of the present invention for site apparatus is specific
It include: receiving module 502 and wake-up module 504.
Wherein, the receiving module 502 is joined in the first moment point using the first competition window for receiving access point apparatus
After number competitive channel resource sends the failure of unicast wakeup message frame, connect in the second moment point using the competition of the second contention window parameter
Enter the unicast wakeup message frame of channel re-transmission；The wake-up module 504 is used for according to the received institute of the receiving module 502
The unicast wakeup message frame for stating access point apparatus retransmission wakes up the principal communication interface of the site apparatus, wherein institute
It is any competing in the first contention window parameter section where first contention window parameter to state the second contention window parameter
Strive window parameter, and the threshold value of first contention window parameter and second contention window parameter is identical or described
Two contention window parameters are greater than any competing in the second contention window parameter section in first contention window parameter section
Strive window parameter.
In this embodiment, when reception access point apparatus uses the first contention window parameter competitive channel in the first moment point
When the unicast wakeup message frame failure that resource is sent, access point apparatus is received in the second moment point and uses the second contention window parameter
The unicast wakeup message frame that competitive channel resource retransmits disappears receiving the unicast and wake up and when receiving successfully
Response frame has successfully been fed back to access point apparatus after breath frame, its master can have been waken up according to the unicast wakeup message frame being successfully received
Communication interface come receive access point apparatus for its caching downlink data, so that equipment power dissipation is effectively reduced, so that equipment is more
Add power saving, meets the needs of IEEE 802.11ba.
Wherein, the second contention window parameter can be the first contention window parameter section where the first contention window parameter
Interior any contention window parameter, further, two contention window parameters can be taken as identical threshold value, for example, first
The threshold value for the CW parameter that moment point uses is 10, then the CW parameter that uses of the first moment point is randomly selecting in 1 to 10
Any one number, for example its CW parameter is 3, and uses the threshold value of same CW parameter in the second moment point, is also 10, then the
The CW parameter that two moment points use is for example 4, and may select at random twice for any one number randomly selected in 1 to 10
Same CW parameter is taken, in this way, not increasing the threshold value of the CW parameter of each moment point, unicast wakeup message can be effectively saved
The re-transmission time of frame and the waiting time of recipient improve retransmission efficiency, also save equipment power dissipation；And consider access device
The unicast wakeup message frame can not be still successfully transmitted when value in the first contention window parameter section, then it can be more competing than first
It strives value in the second big contention window parameter section of window parameter section to be retransmitted, for example the first contention window parameter section
Can be [1,10], and the second contention window parameter section then can be [1,15], then further, access point apparatus can limit
It is scheduled on the number of transmissions retransmitted in each contention window parameter section, in this way, unicast wakeup message can be effectively saved
The re-transmission time of frame improves retransmission efficiency, so that further decreasing equipment power dissipation makes equipment more power saving.
Further, in the above-described embodiments, access point apparatus retransmit unicast wakeup message frame the second moment point with
Interval duration between the first preceding moment point should be at least it and site apparatus is waited to carry out instead for the unicast wakeup message frame
Present response overtime duration, further, it is so-called time-out duration refer to equipment inter-process unicast wakeup message frame when
Long, slave station point device secondary communication interface be transformed into its principal communication interface duration and contention access channel duration three it
With can so guarantee to determine the need for the accuracy for retransmitting the result of unicast wakeup message frame, to avoid unnecessary
Equipment power dissipation, so that equipment more power saving, meets the needs of IEEE 802.11ba.
In specific implementation, receiving module 502 can be receiver or antenna etc.；Wake-up module 504 can be centre
Manage device or baseband processor etc..
Embodiment according to the present invention also proposed a kind of communication equipment, comprising: WLAN as shown in Figure 3
Communication device 30；And/or the communication device 50 of WLAN as shown in Figure 5.
The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, according to the technical solution of the present invention, works as access point
When equipment retransmits unicast wakeup message frame to site apparatus, using random back CW mechanism, it can be effectively reduced equipment power dissipation,
So that equipment more power saving, meets the needs of IEEE 802.11ba.
In the description of this specification, term " first ", " second " are only used for the purpose of description, and should not be understood as indicating
Or imply that relative importance can understand that above-mentioned term exists for the ordinary skill in the art as the case may be
Concrete meaning in the embodiment of the present disclosure.
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 (11)
1. a kind of communication means of WLAN is used for access point apparatus, which is characterized in that the communication of the WLAN
Method includes:
Unicast wakeup message frame is sent to site apparatus using the first contention window parameter competitive channel resource in the first moment point；
When not receiving feedback of the site apparatus for the unicast wakeup message frame, second is used in the second moment point
Contention window parameter competitive channel resource retransmits the unicast wakeup message frame to the site apparatus,
Wherein, first contention window parameter and second contention window parameter are in the first contention window parameter section
Any contention window parameter, and the threshold value of first contention window parameter and second contention window parameter is identical.
2. the communication means of WLAN according to claim 1, which is characterized in that using second contention window
After mouth parameter competitive channel resource retransmits the unicast wakeup message frame to the site apparatus, further includes:
Statistics retransmits the number of transmissions of the unicast wakeup message frame；
Determine whether to continue to retransmit the list to the site apparatus according to the comparison result of the number of transmissions and preset threshold
Broadcast wakeup message frame.
3. the communication means of WLAN according to claim 1 or 2, which is characterized in that further include:
It, will be described after retransmitting the unicast wakeup message frame failure using the second contention window parameter contention access channel
First contention window parameter section is added as the second contention window parameter section, to use second contention window parameter section
In any contention window parameter competitive channel resource retransmit the unicast wakeup message frame.
4. the communication means of WLAN according to claim 1 or 2, which is characterized in that second moment point with
The when a length of described access point equipment waiting site apparatus being spaced between first moment point wakes up for the unicast
The overtime duration of the feedback of message frame.
5. a kind of communication means of WLAN is used for site apparatus, which is characterized in that the communication party of the WLAN
Method includes:
It receives access point apparatus and sends unicast using the first contention window parameter competitive channel resource in the first moment point and wake up and disappear
After ceasing frame failure, in the unicast wakeup message that the second moment point uses the second contention window parameter contention access channel to retransmit
Frame；
It is connect according to the principal communication that the unicast wakeup message frame that described access point equipment retransmits wakes up the site apparatus
Mouthful,
Wherein, second contention window parameter is the first contention window parameter section where first contention window parameter
Interior any contention window parameter, and the threshold value of first contention window parameter and second contention window parameter is identical,
Or second contention window parameter is the second contention window parameter section greater than first contention window parameter section
Interior any contention window parameter.
6. a kind of communication device of WLAN is used for access point apparatus, which is characterized in that the communication of the WLAN
Device includes that sending module and the sending module are used for:
Unicast wakeup message frame is sent to site apparatus using the first contention window parameter competitive channel resource in the first moment point；
When not receiving feedback of the site apparatus for the unicast wakeup message frame, second is used in the second moment point
Contention window parameter competitive channel resource retransmits the unicast wakeup message frame to the site apparatus,
Wherein, first contention window parameter and second contention window parameter are in the first contention window parameter section
Any contention window parameter, and the threshold value of first contention window parameter and second contention window parameter is identical.
7. the communication device of WLAN according to claim 6, which is characterized in that further include:
Statistical module, for using the second contention window parameter competitive channel resource to the website in the sending module
After equipment retransmits the unicast wakeup message frame, statistics retransmits the number of transmissions of the unicast wakeup message frame；
Determining module, for being according to the number of transmissions of the statistical module counts and the comparison result determination of preset threshold
It is no to continue to retransmit the unicast wakeup message frame to the site apparatus.
8. the communication device of WLAN according to claim 6 or 7, which is characterized in that further include:
Processing module, for retransmitting the unicast wakeup message frame using the second contention window parameter contention access channel
After failure, first contention window parameter section is added as the second contention window parameter section, with competing using described second
Any contention window parameter competitive channel resource striven in window parameter section retransmits the unicast wakeup message frame.
9. the communication device of WLAN according to claim 6 or 7, which is characterized in that second moment point with
The when a length of described access point equipment waiting site apparatus being spaced between first moment point wakes up for the unicast
The overtime duration of the feedback of message frame.
10. a kind of communication device of WLAN is used for site apparatus, which is characterized in that the communication of the WLAN
Device includes:
Receiving module is sent out in the first moment point using the first contention window parameter competitive channel resource for receiving access point apparatus
After sending the failure of unicast wakeup message frame, in the second moment point using described in the re-transmission of the second contention window parameter contention access channel
Unicast wakeup message frame；
Wake-up module, the unicast wake-up for being retransmitted according to the received described access point equipment of the receiving module disappear
Breath frame wakes up the principal communication interface of the site apparatus,
Wherein, second contention window parameter is the first contention window parameter section where first contention window parameter
Interior any contention window parameter, and the threshold value of first contention window parameter and second contention window parameter is identical,
Or second contention window parameter is the second contention window parameter section greater than first contention window parameter section
Interior any contention window parameter.
11. a kind of communication equipment characterized by comprising the WLAN as described in any one of claim 6 to 10
Communication device.
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