CN109151957B - Communication method, communication device and communication equipment of wireless local area network - Google Patents
Communication method, communication device and communication equipment of wireless local area network Download PDFInfo
- Publication number
- CN109151957B CN109151957B CN201710505831.8A CN201710505831A CN109151957B CN 109151957 B CN109151957 B CN 109151957B CN 201710505831 A CN201710505831 A CN 201710505831A CN 109151957 B CN109151957 B CN 109151957B
- Authority
- CN
- China
- Prior art keywords
- message frame
- access point
- station
- access
- wake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
-
- 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 invention provides a communication method, a communication device and communication equipment of a wireless local area network, wherein the communication method of the wireless local area network for an access point comprises the following steps: generating a wakeup message frame, and setting first access channel type information of the wakeup message frame; when the wakeup message frame is unsuccessfully sent to the site according to the first priority access level contention channel resource corresponding to the first access channel type information, regenerating the wakeup message frame, and setting second access channel type information of the regenerated wakeup message frame, wherein the second priority access level corresponding to the second access channel type information is higher than the first priority access level; and obtaining channel resources according to the second priority access level competition so as to resend the wake-up message frame to the site. By the technical scheme, the power consumption of the equipment can be effectively reduced, the equipment is more power-saving, and the requirements of IEEE802.11ba are met.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a communication method of a wireless local area network, a communication apparatus of the wireless local area network, and a communication device.
Background
In the year 2016, 7, IEEE (Institute of Electrical and Electronics Engineers) 802.11 established the research group wur (wake Up receiver) of the next generation Wi-Fi (Wireless Fidelity) technology, i.e., IEEE 802.11.ba, which is mainly applied in the aspect of internet of things, in order to save the power consumption of devices as much as possible, and most importantly, in order to save the power consumption of devices receiving wake-Up frames (wake-Up message frames) as much as possible, wherein the power consumption required by devices to receive wake-Up frames is not more than 1 mW.
Currently, there are the following regulations for how the wake-up message frame uses the AC (Access category) and EDCA (Enhanced Distributed Channel Access) parameters to Access the Channel:
(1) an Access Point (AP) may repeatedly use the existing 4 ACs and corresponding EDCA parameters to transmit a wake-up message frame, where the wake-up message frame includes: unicast wakeup message frame, multicast wakeup message frame and WUR beacon frame;
(2) the access point may use any one of the existing ACs to send the multicast wakeup message frame;
(3) the access point may use any one of the existing ACs to send a WUR beacon frame;
(4) when the access point does not have buffered downlink data, the access point may use any of the existing ACs to send unicast wake-up message frames.
However, when an Access Point (AP) transmits an awake message frame to a Station (STA) using any one of the existing ACs and the transmission is unsuccessful, if the retransmission of the awake message frame still uses the existing random back-off mechanism, the waiting time of the STA is longer, so the power consumption of the device may be as much as that of the existing retransmission mechanism, and the purpose of saving the power consumption of the device cannot be achieved.
Disclosure of Invention
Based on at least one of the above technical problems, the present invention provides a new communication scheme for a wireless local area network, wherein when an access point fails to transmit a wakeup message frame to a station and retransmits the wakeup message frame, the access channel type information with a higher priority access level is applied to reduce the waiting time delay of a receiver of the wakeup message frame, thereby reducing the power consumption of the device, enabling the device to be more power-saving, and meeting the requirements of ieee802.11ba.
In view of the above, according to a first aspect of the present invention, a communication method of a wireless local area network is provided, where the communication method of the wireless local area network is used for an access point, and the communication method of the wireless local area network includes: generating a wakeup message frame, and setting first access channel type information of the wakeup message frame; when the wakeup message frame is unsuccessfully sent to the site according to the first priority access level contention channel resource corresponding to the first access channel type information, regenerating the wakeup message frame, and setting second access channel type information of the regenerated wakeup message frame, wherein the second priority access level corresponding to the second access channel type information is higher than the first priority access level; and obtaining channel resources according to the second priority access level competition so as to resend the wake-up message frame to the site.
In the technical scheme, when a contention channel resource at a first priority access level corresponding to set first access channel type information (namely, AC information) fails to transmit a wakeup message frame to a station, for example, when a response frame of the station for the wakeup message frame is not received within a certain time, it may be determined that the transmission of the wakeup message frame at the current time fails, and then a contention channel resource at a second priority level, which is higher than the first priority access level and corresponds to set second access channel type information, is contended to reduce a waiting time delay of an access point access channel, so as to improve a probability of success of retransmitting the wakeup message frame to the station, and reduce a waiting time delay of a receiver of the wakeup message frame, thereby reducing power consumption of equipment, enabling the equipment to be more power-saving, and meeting requirements of IEEE802.11 ba; the wake-up message frame is used for waking up a main communication interface of the station so as to enable the main communication interface to receive downlink data cached by the access point for the station.
In the foregoing technical solution, preferably, the communication method of the wireless local area network further includes, after the resending the wake-up message frame to the station: increasing the counted transmission times of resending the awakening message frame by 1 to be used as new transmission times; and sending the new transmission times to the station so as to determine whether the station is still in the service coverage range of the access point according to the size relation between the new transmission times and a preset threshold value.
In the technical scheme, in order to further reduce the power consumption of the device and enable the device to be more power-saving, the transmission times for resending the wake-up message frame to the station can be counted, that is, the counted transmission times are increased by 1 after each retransmission, and the latest counted transmission times are sent to the station, so that the station can determine whether the station is still in the service coverage range of the access point according to the size relationship between the counted new transmission times and the preset threshold, thereby avoiding the retransmission of unnecessary wake-up message frames and further reducing the power consumption of the device.
In any of the above technical solutions, preferably, the communication method of the wireless local area network further includes, before the step of generating the wake-up message frame and setting the first access channel class information of the wake-up message frame: and sending a management message frame to the site, wherein the management message frame comprises an information identifier, and the information identifier is used for indicating that the access point can retransmit the wake-up message frame with different access channel type information to the site.
In the technical scheme, in order to ensure that the wake-up message frame can be smoothly retransmitted to the station according to different access channel type information, the access point can inform the station of an AC change mechanism supporting the retransmission of the wake-up message frame in advance in a mode of setting an information identifier in a management message frame sent to the station, so that the success probability of retransmitting the wake-up message frame to the station is ensured, and meanwhile, the purpose of gradually reducing the waiting time delay of a receiver is achieved, so that the equipment is favorable for saving more power.
The management message frame may be a Beacon frame (Beacon frame), a WUR Beacon frame (WUR Beacon frame), or a WUR status request response frame.
According to the second aspect of the present invention, there is further provided a communication apparatus of a wireless local area network, configured to be used in an access point, the communication apparatus of the wireless local area network including: the first setting module is used for generating a wakeup message frame and setting first access channel type information of the wakeup message frame; a second setting module, configured to regenerate the wake-up message frame when it fails to send the wake-up message frame to a station according to a first priority access level contention channel resource corresponding to the first access channel type information, and set second access channel type information of the regenerated wake-up message frame, where a second priority access level corresponding to the second access channel type information is higher than the first priority access level; and a sending module, configured to acquire channel resources according to the second priority access level contention to resend the wakeup message frame to the station.
In the technical scheme, when a contention channel resource at a first priority access level corresponding to set first access channel type information (namely, AC information) fails to transmit a wakeup message frame to a station, for example, when a response frame of the station for the wakeup message frame is not received within a certain time, it may be determined that the transmission of the wakeup message frame at the current time fails, and then a contention channel resource at a second priority level, which is higher than the first priority access level and corresponds to set second access channel type information, is contended to reduce a waiting time delay of an access point access channel, so as to improve a probability of success of retransmitting the wakeup message frame to the station, and reduce a waiting time delay of a receiver of the wakeup message frame, thereby reducing power consumption of equipment, enabling the equipment to be more power-saving, and meeting requirements of IEEE802.11 ba; the wake-up message frame is used for waking up a main communication interface of the station so as to enable the main communication interface to receive downlink data cached by the access point for the station.
In the foregoing technical solution, preferably, the communication apparatus of the wireless local area network further includes: the statistical module is used for increasing the statistical transmission times for resending the awakening message frame by 1 to be used as new transmission times after the sending module resends the awakening message frame to the site; and the sending module is further configured to: and sending the new transmission times counted by the counting module to the station so as to determine whether the station is still in the service coverage range of the access point according to the size relation between the new transmission times and a preset threshold value.
In the technical scheme, in order to further reduce the power consumption of the device and enable the device to be more power-saving, the transmission times for resending the wake-up message frame to the station can be counted, that is, the counted transmission times are increased by 1 after each retransmission, and the latest counted transmission times are sent to the station, so that the station can determine whether the station is still in the service coverage range of the access point according to the size relationship between the counted new transmission times and the preset threshold, thereby avoiding the retransmission of unnecessary wake-up message frames and further reducing the power consumption of the device.
In any of the above technical solutions, preferably, the sending module is further configured to: before the step of generating a wake-up message frame by the first setting module and setting the first access channel type information of the wake-up message frame, sending a management message frame to the station, wherein the management message frame comprises an information identifier, and the information identifier is used for indicating that the access point can retransmit wake-up message frames with different access channel type information to the station.
In the technical scheme, in order to ensure that the wake-up message frame can be smoothly retransmitted to the station according to different access channel type information, the access point can inform the station of an AC change mechanism supporting the retransmission of the wake-up message frame in advance in a mode of setting an information identifier in a management message frame sent to the station, so that the success probability of retransmitting the wake-up message frame to the station is ensured, and meanwhile, the purpose of gradually reducing the waiting time delay of a receiver is achieved, so that the equipment is favorable for saving more power.
The management message frame may be a Beacon frame (Beacon frame), a WUR Beacon frame (WUR Beacon frame), or a WUR status request response frame.
According to the third aspect of the present invention, there is further provided a communication method of a wireless local area network, where the communication method of the wireless local area network is used for a station, and the communication method of the wireless local area network includes: receiving an awakening message frame which is retransmitted by an access point according to a second priority access level competition access channel corresponding to second access channel class information after the access point fails to transmit the awakening message frame according to a first priority access level competition channel resource corresponding to the first access channel class information, wherein the second priority access level is higher than the first priority access level; and awakening a main communication interface of the station according to the awakening message frame retransmitted by the access point.
In the technical scheme, when a receiving access point fails to send a wakeup message frame according to a first priority access level competition channel resource corresponding to set first access channel type information, the receiving access point successfully feeds back a response frame to the access point equipment according to a second priority level competition channel resource with a priority higher than the first priority access level corresponding to set second access channel type information, and can wake up a main communication interface of the access point equipment to receive downlink data cached by the access point equipment according to a successfully received unicast wakeup message frame to reduce waiting time delay of the access channel of the access point and improve the success probability of sending the wakeup message frame to a station, and reduce the waiting time delay of a receiver of the wakeup message frame so as to reduce the power consumption of the equipment, the equipment is more power-saving, and the requirements of IEEE802.11ba are met.
In the foregoing technical solution, preferably, the communication method of the wireless local area network further includes: receiving the transmission times of the resending awakening message frame counted by the access point; and when the transmission times are judged to be larger than or equal to a preset threshold value, determining that the station leaves the service coverage range of the access point.
In the technical scheme, in order to further reduce the power consumption of the device and enable the device to be more power-saving, the station can determine whether the station is still in the service coverage of the access point according to the transmission times counted by the access point for resending the wake-up message frame, namely, the station judges according to the size relationship between the new transmission times counted by the access point after retransmitting the wake-up message frame and the preset threshold value, wherein the new transmission times is increased by 1, and the new transmission times is determined to leave the service coverage of the access point when the received new transmission times is greater than or equal to the preset threshold value, so that the receiving cannot be successfully carried out no matter how many times the wake-up message frame is retransmitted by the access point, and the power consumption of the device can be further reduced.
In any of the above technical solutions, preferably, before receiving the wake-up message frame retransmitted by the access point, the method for communicating in the wireless local area network further includes: and receiving a management message frame sent by the access point, wherein the management message frame comprises an information identifier, and the information identifier is used for indicating that the access point can retransmit the wake-up message frame with different access channel type information to the station.
In the technical scheme, in order to ensure that the wakeup message frame can be retransmitted smoothly according to different access channel type information, the management message frame sent by the access point can be received in advance, and an AC change mechanism for the access point to support the retransmission of the wakeup message frame can be known in a manner of analyzing the information identifier contained in the management message frame, so that the success probability of retransmitting the wakeup message frame is ensured, and meanwhile, the purpose of reducing the waiting time delay of the station stage by stage is achieved, so that the equipment is favorable for saving more power.
The management message frame may be a Beacon frame (Beacon frame), a WUR Beacon frame (WUR Beacon frame), or a WUR status request response frame.
According to the fourth aspect of the present invention, there is also provided a communication apparatus of a wireless local area network, for a station, the communication apparatus of the wireless local area network including: a receiving module, configured to receive a wakeup message frame that is retransmitted by an access point according to a second priority access level contention access channel corresponding to a second access channel type information after the access point fails to transmit the wakeup message frame according to a first priority access level contention channel resource corresponding to the first access channel type information, where the second priority access level is higher than the first priority access level; and the awakening module is used for awakening the main communication interface of the station according to the awakening message frame which is received by the receiving module and retransmitted by the access point.
In the technical scheme, when a receiving access point fails to send a wakeup message frame according to a first priority access level competition channel resource corresponding to set first access channel type information, the receiving access point successfully feeds back a response frame to the access point equipment according to a second priority level competition channel resource with a priority higher than the first priority access level corresponding to set second access channel type information, and can wake up a main communication interface of the access point equipment to receive downlink data cached by the access point equipment according to a successfully received unicast wakeup message frame to reduce waiting time delay of the access channel of the access point and improve the success probability of sending the wakeup message frame to a station, and reduce the waiting time delay of a receiver of the wakeup message frame so as to reduce the power consumption of the equipment, the equipment is more power-saving, and the requirements of IEEE802.11ba are met.
In the foregoing technical solution, preferably, the receiving module is further configured to: receiving the transmission times of the resending awakening message frame counted by the access point; and the communication device of the wireless local area network further comprises: and the determining module is used for determining that the station leaves the service coverage range of the access point when the transmission times are judged to be larger than or equal to a preset threshold value.
In the technical scheme, in order to further reduce the power consumption of the device and enable the device to be more power-saving, the station can determine whether the station is still in the service coverage of the access point according to the transmission times counted by the access point for resending the wake-up message frame, namely, the station judges according to the size relationship between the new transmission times counted by the access point after retransmitting the wake-up message frame and the preset threshold value, wherein the new transmission times is increased by 1, and the new transmission times is determined to leave the service coverage of the access point when the received new transmission times is greater than or equal to the preset threshold value, so that the receiving cannot be successfully carried out no matter how many times the wake-up message frame is retransmitted by the access point, and the power consumption of the device can be further reduced.
In any of the foregoing technical solutions, preferably, before receiving the wake-up message frame retransmitted by the access point, the receiving module is further configured to: and receiving a management message frame sent by the access point, wherein the management message frame comprises an information identifier, and the information identifier is used for indicating that the access point can retransmit the wake-up message frame with different access channel type information to the station.
In the technical scheme, in order to ensure that the wakeup message frame can be retransmitted smoothly according to different access channel type information, the management message frame sent by the access point can be received in advance, and an AC change mechanism for the access point to support the retransmission of the wakeup message frame can be known in a manner of analyzing the information identifier contained in the management message frame, so that the success probability of retransmitting the wakeup message frame is ensured, and meanwhile, the purpose of reducing the waiting time delay of the station stage by stage is achieved, so that the equipment is favorable for saving more power.
The management message frame may be a Beacon frame (Beacon frame), a WUR Beacon frame (WUR Beacon frame), or a WUR status request response frame.
According to a fifth aspect of the present invention, there is also provided a communication device, comprising: communication means of a wireless local area network as described in the second aspect above; and/or a communication device of a wireless local area network as described in the fourth aspect above.
According to the technical scheme of the invention, when the access point fails to transmit the wake-up message frame to the station and retransmits the wake-up message frame, the access channel type information with higher priority access level is adopted to reduce the waiting time delay of the receiver of the wake-up message frame, so that the power consumption of the equipment is reduced, the equipment is more power-saving, and the requirement of IEEE802.11ba is met.
Drawings
Fig. 1 shows a flow chart of a communication method for a wireless local area network of an access point according to a first embodiment of the present invention;
fig. 2 is a flowchart illustrating a communication method for a wireless local area network of an access point according to a second embodiment of the present invention;
fig. 3 shows a schematic block diagram of a communication device for a wireless local area network of an access point according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a communication method for a wireless local area network of a station according to a first embodiment of the present invention;
fig. 5 is a flowchart illustrating a communication method for a wireless local area network of a station according to a second embodiment of the present invention;
fig. 6 shows a schematic block diagram of a communication device for a wireless local area network of a station according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Fig. 1 is a flowchart illustrating a communication method for a wireless lan of an access point according to a first embodiment of the present invention.
As shown in fig. 1, a communication method for a wireless local area network of an access point according to a first embodiment of the present invention specifically includes the following steps:
And step 104, when it fails to send the wakeup message frame to the site according to the first priority access level contention channel resource corresponding to the first access channel type information, regenerating the wakeup message frame, and setting second access channel type information of the regenerated wakeup message frame, wherein the second priority access level corresponding to the second access channel type information is higher than the first priority access level.
And step 106, obtaining channel resources according to the second priority access level competition to resend the wake-up message frame to the site.
In this embodiment, when it is failed to transmit a wakeup message frame to a station according to a first priority access level contention channel resource corresponding to set first access channel type information (i.e., AC information), for example, when a response frame of the station for the wakeup message frame is not received within a certain time period, it may be determined that the transmission of the current wakeup message frame is failed, and then it is determined that the channel resource is contended according to a second priority level, where the priority level corresponding to set second access channel type information is higher than the first priority access level, so as to reduce the waiting time delay of an access point access channel, thereby improving the probability of successfully transmitting the wakeup message frame to the station again, and reducing the waiting time delay of a receiver of the wakeup message frame, thereby reducing the power consumption of the device, making the device more power-saving, and meeting the requirements of IEEE802.11 ba; the wake-up message frame is used for waking up a main communication interface of the station so as to enable the main communication interface to receive downlink data cached by the access point for the station.
For example, the first access channel class information may BE AC _ BK (Background stream packet), and the second access channel class information may BE one of AC _ BE (Best Effort stream packet), AC _ VI (Video stream packet), and AC _ VO (Voice stream packet), that is, the four packets preempt the radio channel in order from low to high to transmit and receive.
As shown in fig. 2, the communication method for the wireless local area network of the access point according to the second embodiment of the present invention includes steps 202 to 206, which are substantially the same as the steps 102 to 106 shown in fig. 1, and further includes the following steps:
and step 208, increasing the counted transmission times for retransmitting the wake-up message frame by 1 to serve as new transmission times.
In this embodiment, in order to further reduce the power consumption of the device and enable the device to be more power-saving, the transmission times for resending the wakeup message frame to the station may be counted, that is, the counted transmission times are increased by 1 after each retransmission, and the latest counted transmission times are sent to the station, so that the station determines whether the new transmission times are still within the service coverage of the access point according to the size relationship between the counted new transmission times and a preset threshold (for example, 3 times, where a specific value is determined according to an actual situation), thereby avoiding the retransmission of the unnecessary wakeup message frame and further reducing the power consumption of the device.
Further, in any of the above embodiments, before step 102 and step 202, further comprising: and sending a management message frame to the site, wherein the management message frame comprises an information identifier, and the information identifier is used for indicating that the access point can retransmit the wake-up message frame with different access channel type information to the site.
In this embodiment, in order to ensure that the wake-up message frame can be smoothly retransmitted to the station according to different access channel type information, the access point may previously notify the station of an AC change mechanism supporting the retransmission of the wake-up message frame in a manner of setting an information identifier in a management message frame sent to the station, thereby ensuring a success probability of retransmitting the wake-up message frame to the station, and simultaneously achieving a purpose of gradually reducing a waiting time delay of a receiver, so as to facilitate power saving of the device.
The management message frame may be a Beacon frame (Beacon frame), a WUR Beacon frame (WUR Beacon frame), or a WUR status request response frame.
The executing body of the communication method shown in fig. 1 and fig. 2 may be an access point device in a network formed by an access point and a station, such as a router, a server with a Wi-Fi interface, or a smartphone.
Fig. 3 shows a schematic block diagram of a communication device for a wireless local area network of an access point according to an embodiment of the present invention.
As shown in fig. 3, a communication apparatus 30 for a wireless local area network of an access point according to an embodiment of the present invention includes: a first setup module 302, a second setup module 304, and a sending module 306.
The first setting module 302 is configured to generate a wakeup message frame, and set first access channel class information of the wakeup message frame; the second setting module 304 is configured to regenerate the wake-up message frame when it fails to send the wake-up message frame to the station according to the first priority access level contention channel resource corresponding to the first access channel type information, and set second access channel type information of the regenerated wake-up message frame, where a second priority access level corresponding to the second access channel type information is higher than the first priority access level; the sending module 306 is configured to acquire channel resources according to the second priority access level contention to resend the wake-up message frame to the station.
In this embodiment, when it is failed to transmit a wakeup message frame to a station according to a first priority access level contention channel resource corresponding to set first access channel type information (i.e., AC information), for example, when a response frame of the station for the wakeup message frame is not received within a certain time period, it may be determined that the transmission of the current wakeup message frame is failed, and then it is determined that the channel resource is contended according to a second priority level, where the priority level corresponding to set second access channel type information is higher than the first priority access level, so as to reduce the waiting time delay of an access point access channel, thereby improving the probability of successfully transmitting the wakeup message frame to the station again, and reducing the waiting time delay of a receiver of the wakeup message frame, thereby reducing the power consumption of the device, making the device more power-saving, and meeting the requirements of IEEE802.11 ba; the wake-up message frame is used for waking up a main communication interface of the station so as to enable the main communication interface to receive downlink data cached by the access point for the station.
For example, the first access channel class information may BE AC _ BK (Background stream packet), and the second access channel class information may BE one of AC _ BE (Best Effort stream packet), AC _ VI (Video stream packet), and AC _ VO (Voice stream packet), that is, the four packets preempt the radio channel in order from low to high to transmit and receive.
Further, in the above embodiment, the communication device 30 of the wireless local area network further includes: the counting module 308 is configured to increase the counted transmission times for retransmitting the wake-up message frame by 1 after the sending module 306 retransmits the wake-up message frame to the station, so as to serve as new transmission times; and the sending module 306 is further configured to: and sending the new transmission times counted by the counting module 308 to the station, so that whether the station is still in the service coverage of the access point is determined according to the size relationship between the new transmission times and a preset threshold.
In this embodiment, in order to further reduce the power consumption of the device and enable the device to be more power-saving, the transmission times for resending the wakeup message frame to the station may be counted, that is, the counted transmission times are increased by 1 after each retransmission, and the latest counted transmission times are sent to the station, so that the station determines whether the new transmission times are still within the service coverage of the access point according to the size relationship between the counted new transmission times and a preset threshold (for example, 3 times, where a specific value is determined according to an actual situation), thereby avoiding the retransmission of the unnecessary wakeup message frame and further reducing the power consumption of the device.
Further, in any of the above embodiments, the sending module 306 is further configured to: before the step of generating a wake-up message frame and setting the first access channel type information of the wake-up message frame by the first setting module 302, sending a management message frame to the station, where the management message frame includes an information identifier, and the information identifier is used to indicate that the access point can retransmit a wake-up message frame with different access channel type information to the station.
In this embodiment, in order to ensure that the wake-up message frame can be smoothly retransmitted to the station according to different access channel type information, the access point may previously notify the station of an AC change mechanism supporting the retransmission of the wake-up message frame in a manner of setting an information identifier in a management message frame sent to the station, thereby ensuring a success probability of retransmitting the wake-up message frame to the station, and simultaneously achieving a purpose of gradually reducing a waiting time delay of a receiver, so as to facilitate power saving of the device.
The management message frame may be a Beacon frame (Beacon frame), a WUR Beacon frame (WUR Beacon frame), or a WUR status request response frame.
In a specific implementation, the first setting module 302, the second setting module 304, and the statistic module 308 may be a central processor or a baseband processor, etc.; the sending module 306 may be a transmitter or an antenna, etc.
Fig. 4 is a flowchart illustrating a communication method for a wireless local area network of a station according to a first embodiment of the present invention.
As shown in fig. 4, the communication method for a wireless local area network of a station according to the first embodiment of the present invention specifically includes the following steps:
In this embodiment, when the receiving access point fails to send the wakeup message frame according to the contention channel resource of the first priority access level corresponding to the set first access channel class information, the receiving access point sends the wakeup message frame according to the contention channel resource of the second priority access level whose priority corresponding to the set second access channel class information is higher than the first priority access level, and when the receiving is successful, that is, after receiving the wakeup message frame, the receiving access point successfully feeds back a response frame to the access point device, and can wake up its main communication interface according to the successfully received unicast wakeup message frame to receive the downlink data cached by the access point device, thereby reducing the waiting time delay of the access channel of the access point, improving the probability of successfully sending the wakeup message frame to the station, and simultaneously reducing the waiting time delay of the receiver of the wakeup message frame, thereby reducing the power consumption of the device, the equipment is more power-saving, and the requirements of IEEE802.11ba are met.
For example, the first access channel class information may BE AC _ BK (Background stream packet), and the second access channel class information may BE one of AC _ BE (Best Effort stream packet), AC _ VI (Video stream packet), and AC _ VO (Voice stream packet), that is, the four packets preempt the radio channel in order from low to high to transmit and receive.
As shown in fig. 5, the communication method for the wireless local area network of the station according to the second embodiment of the present invention includes steps 502 to 504 that are substantially the same as the steps 402 to 404 shown in fig. 4, and further includes the following steps:
In this embodiment, in order to further reduce the power consumption of the device and enable the device to save more power, the station may determine whether the station is still within the service coverage of the access point according to the transmission times counted by the access point to resend the wakeup message frame, that is, according to a size relationship between a new transmission time counted by the access point after retransmitting the wakeup message frame and increasing the transmission time by 1 and a preset threshold, and determine that the station has left the service coverage of the access point when the received new transmission time is greater than or equal to the preset threshold (for example, 3 times, and a specific value is determined according to an actual situation), which indicates that the access point cannot successfully receive the wakeup message frame no matter how many times the access point retransmits the wakeup message frame, so that unnecessary retransmission of the wakeup message frame can be avoided, and the power consumption of the device is further reduced.
Further, in any of the above embodiments, the communication method of the wireless local area network further includes, before the step 402 and the step 502: and receiving a management message frame sent by the access point, wherein the management message frame comprises an information identifier, and the information identifier is used for indicating that the access point can retransmit the wake-up message frame with different access channel type information to the station.
In this embodiment, in order to ensure that the wake-up message frame can be retransmitted smoothly according to different access channel type information, the management message frame sent by the access point may be received in advance, and an AC change mechanism that the access point supports the retransmission of the wake-up message frame may be known by analyzing the information identifier included therein, so as to ensure the success probability of retransmitting the wake-up message frame, and simultaneously achieve the purpose of reducing the waiting time delay of the station step by step, so as to facilitate power saving of the device.
The management message frame may be a Beacon frame (Beacon frame), a WUR Beacon frame (WUR Beacon frame), or a WUR status request response frame.
The main executing body of the communication method shown in fig. 4 and 5 may be a station device in a network formed by an access point and a station, such as a smart phone or a PDA (Personal Digital Assistant).
The interface through which the station device receives the wakeup message frame is a secondary communication interface, and the purpose of receiving the wakeup message frame is to wake up a primary communication interface of the station device to perform communication so as to obtain a downlink data frame buffered by the access point device.
Fig. 6 shows a schematic block diagram of a communication device for a wireless local area network of a station according to an embodiment of the present invention.
As shown in fig. 6, a communication apparatus 60 for a wireless local area network of a station according to an embodiment of the present invention includes: a receiving module 602 and a wake-up module 604.
The receiving module 602 is configured to receive a wakeup message frame that is retransmitted by an access point according to a second priority access level contention access channel corresponding to a second access channel class information after the access point fails to transmit the wakeup message frame according to a first priority access level contention channel resource corresponding to the first access channel class information, where the second priority access level is higher than the first priority access level; the wake-up module 604 is configured to wake up a main communication interface of the station according to the wake-up message frame that is received by the receiving module 602 and retransmitted by the access point.
For example, the first access channel class information may BE AC _ BK (Background stream packet), and the second access channel class information may BE one of AC _ BE (Best Effort stream packet), AC _ VI (Video stream packet), and AC _ VO (Voice stream packet), that is, the four packets preempt the radio channel in order from low to high to transmit and receive.
In this embodiment, when the receiving access point fails to send the wakeup message frame according to the contention channel resource of the first priority access level corresponding to the set first access channel class information, the receiving access point sends the wakeup message frame according to the contention channel resource of the second priority access level whose priority corresponding to the set second access channel class information is higher than the first priority access level, and when the receiving is successful, that is, after receiving the wakeup message frame, the receiving access point successfully feeds back a response frame to the access point device, and can wake up its main communication interface according to the successfully received unicast wakeup message frame to receive the downlink data cached by the access point device, thereby reducing the waiting time delay of the access channel of the access point, improving the probability of successfully sending the wakeup message frame to the station, and simultaneously reducing the waiting time delay of the receiver of the wakeup message frame, thereby reducing the power consumption of the device, the equipment is more power-saving, and the requirements of IEEE802.11ba are met.
Further, in the above embodiment, the receiving module 602 is further configured to: receiving the transmission times of the resending awakening message frame counted by the access point; and the communication means 60 of the wireless local area network further comprises: a determining module 606, configured to determine that the station has left the service coverage of the access point when it is determined that the number of transmissions is greater than or equal to a preset threshold.
In this embodiment, in order to further reduce the power consumption of the device and enable the device to save more power, the station may determine whether the station is still within the service coverage of the access point according to the transmission times counted by the access point to resend the wakeup message frame, that is, according to a size relationship between a new transmission time counted by the access point after retransmitting the wakeup message frame and increasing the transmission time by 1 and a preset threshold, and determine that the station has left the service coverage of the access point when the received new transmission time is greater than or equal to the preset threshold (for example, 3 times, and a specific value is determined according to an actual situation), which indicates that the access point cannot successfully receive the wakeup message frame no matter how many times the access point retransmits the wakeup message frame, so that unnecessary retransmission of the wakeup message frame can be avoided, and the power consumption of the device is further reduced.
Further, in any of the above embodiments, before receiving the wake-up message frame retransmitted by the access point, the receiving module 602 is further configured to: and receiving a management message frame sent by the access point, wherein the management message frame comprises an information identifier, and the information identifier is used for indicating that the access point can retransmit the wake-up message frame with different access channel type information to the station.
In this embodiment, in order to ensure that the wake-up message frame can be retransmitted smoothly according to different access channel type information, the management message frame sent by the access point may be received in advance, and an AC change mechanism that the access point supports the retransmission of the wake-up message frame may be known by analyzing the information identifier included therein, so as to ensure the success probability of retransmitting the wake-up message frame, and simultaneously achieve the purpose of reducing the waiting time delay of the station step by step, so as to facilitate power saving of the device.
The management message frame may be a Beacon frame (Beacon frame), a WUR Beacon frame (WUR Beacon frame), or a WUR status request response frame.
In a specific implementation, the receiving module 602 may be a receiver or an antenna, etc.; the wake-up module 604 and the determination module 606 may be a central processor or a baseband processor, etc.
There is also provided, in accordance with an embodiment of the present invention, communication apparatus including: a communication device 30 of a wireless local area network as shown in fig. 3; and/or a communication device 60 of a wireless local area network as shown in fig. 6.
The technical scheme of the present invention is described in detail above with reference to the accompanying drawings, when the access point fails to transmit the wakeup message frame to the station and retransmits the wakeup message frame, the access channel type information with a higher priority access level is applied to reduce the waiting time delay of the receiver of the wakeup message frame, thereby reducing the power consumption of the device, enabling the device to be more power-saving, and meeting the requirements of IEEE802.11 ba.
In the description of the present specification, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and specific meanings of the above terms in the disclosed embodiments may be understood according to specific situations by those of ordinary skill in the art.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. A communication method of a wireless local area network, which is used for an access point, wherein the communication method of the wireless local area network comprises:
generating a wakeup message frame, and setting first access channel type information of the wakeup message frame;
when the wakeup message frame is unsuccessfully sent to the site according to the first priority access level contention channel resource corresponding to the first access channel type information, regenerating the wakeup message frame, and setting second access channel type information of the regenerated wakeup message frame, wherein the second priority access level corresponding to the second access channel type information is higher than the first priority access level;
and obtaining channel resources according to the second priority access level competition so as to resend the wake-up message frame to the site.
2. The communication method of the wireless local area network according to claim 1, further comprising, after retransmitting the wake-up message frame to the station:
increasing the counted transmission times of resending the awakening message frame by 1 to be used as new transmission times;
and sending the new transmission times to the station so as to determine whether the station is still in the service coverage range of the access point according to the size relation between the new transmission times and a preset threshold value.
3. The communication method of the wireless local area network according to claim 1 or 2, further comprising, before the step of generating the wake-up message frame and setting the first access channel class information of the wake-up message frame:
and sending a management message frame to the site, wherein the management message frame comprises an information identifier, and the information identifier is used for indicating that the access point can retransmit the wake-up message frame with different access channel type information to the site.
4. A communication method of a wireless local area network, which is used for a station, and is characterized in that the communication method of the wireless local area network comprises:
receiving an awakening message frame which is retransmitted by an access point according to a second priority access level competition access channel corresponding to second access channel class information after the access point fails to transmit the awakening message frame according to a first priority access level competition channel resource corresponding to the first access channel class information, wherein the second priority access level is higher than the first priority access level;
and awakening a main communication interface of the station according to the awakening message frame retransmitted by the access point.
5. The communication method of the wireless local area network according to claim 4, further comprising:
receiving the transmission times of the resending awakening message frame counted by the access point;
and when the transmission times are judged to be larger than or equal to a preset threshold value, determining that the station leaves the service coverage range of the access point.
6. The communication method of the wireless local area network according to claim 4 or 5, further comprising, before receiving the wake-up message frame retransmitted by the access point:
and receiving a management message frame sent by the access point, wherein the management message frame comprises an information identifier, and the information identifier is used for indicating that the access point can retransmit the wake-up message frame with different access channel type information to the station.
7. A communication apparatus of a wireless local area network for an access point, the communication apparatus of the wireless local area network comprising:
the first setting module is used for generating a wakeup message frame and setting first access channel type information of the wakeup message frame;
a second setting module, configured to regenerate the wake-up message frame when it fails to send the wake-up message frame to a station according to a first priority access level contention channel resource corresponding to the first access channel type information, and set second access channel type information of the regenerated wake-up message frame, where a second priority access level corresponding to the second access channel type information is higher than the first priority access level;
and a sending module, configured to acquire channel resources according to the second priority access level contention to resend the wakeup message frame to the station.
8. The apparatus for communicating in a wireless local area network according to claim 7, further comprising:
the statistical module is used for increasing the statistical transmission times for resending the awakening message frame by 1 to be used as new transmission times after the sending module resends the awakening message frame to the site; and
the sending module is further configured to: and sending the new transmission times counted by the counting module to the station so as to determine whether the station is still in the service coverage range of the access point according to the size relation between the new transmission times and a preset threshold value.
9. The apparatus of claim 7 or 8, wherein the sending module is further configured to:
before the step of generating a wake-up message frame by the first setting module and setting the first access channel type information of the wake-up message frame, sending a management message frame to the station, wherein the management message frame comprises an information identifier, and the information identifier is used for indicating that the access point can retransmit wake-up message frames with different access channel type information to the station.
10. A communication apparatus of a wireless local area network, for a station, the communication apparatus of the wireless local area network comprising:
a receiving module, configured to receive a wakeup message frame that is retransmitted by an access point according to a second priority access level contention access channel corresponding to a second access channel type information after the access point fails to transmit the wakeup message frame according to a first priority access level contention channel resource corresponding to the first access channel type information, where the second priority access level is higher than the first priority access level;
and the awakening module is used for awakening the main communication interface of the station according to the awakening message frame which is received by the receiving module and retransmitted by the access point.
11. The communication device of the wireless local area network according to claim 10,
the receiving module is further configured to: receiving the transmission times of the resending awakening message frame counted by the access point; and
the communication device of the wireless local area network further comprises:
and the determining module is used for determining that the station leaves the service coverage range of the access point when the transmission times are judged to be larger than or equal to a preset threshold value.
12. The apparatus according to claim 10 or 11, wherein the receiving module, before receiving the wake-up message frame retransmitted by the access point, is further configured to:
and receiving a management message frame sent by the access point, wherein the management message frame comprises an information identifier, and the information identifier is used for indicating that the access point can retransmit the wake-up message frame with different access channel type information to the station.
13. A communication device, comprising:
communication means of a wireless local area network according to any one of claims 7 to 9; and/or
Communication device of a wireless local area network according to any of claims 10 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710505831.8A CN109151957B (en) | 2017-06-28 | 2017-06-28 | Communication method, communication device and communication equipment of wireless local area network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710505831.8A CN109151957B (en) | 2017-06-28 | 2017-06-28 | Communication method, communication device and communication equipment of wireless local area network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109151957A CN109151957A (en) | 2019-01-04 |
| CN109151957B true CN109151957B (en) | 2022-03-11 |
Family
ID=64805433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710505831.8A Active CN109151957B (en) | 2017-06-28 | 2017-06-28 | Communication method, communication device and communication equipment of wireless local area network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109151957B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381601B (en) * | 2019-07-12 | 2022-12-27 | 腾讯科技（深圳）有限公司 | Communication method, communication device, computer readable medium and electronic equipment |
| CN112770281B (en) * | 2020-12-31 | 2023-10-27 | 上海遨有信息技术有限公司 | Access control method in field of Internet of things of power equipment |
| WO2023050160A1 (en) * | 2021-09-29 | 2023-04-06 | Oppo广东移动通信有限公司 | Method and apparatus for updating random access parameter, and device and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101558606A (en) * | 2006-12-14 | 2009-10-14 | 英特尔公司 | Method and apparatus of prioritizing services of wireless local area network |
| CN103945558A (en) * | 2014-03-27 | 2014-07-23 | 西安交通大学 | Self-adaption channel access control method based on network loads in wireless local area network |
| CN106332187A (en) * | 2015-06-30 | 2017-01-11 | 华为技术有限公司 | QoS parameter configuration method, device and system in WLAN |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012141758A1 (en) * | 2011-04-15 | 2012-10-18 | Intel Corporation | Methods and arrangements for channel access in wireless networks |
| US9749955B2 (en) * | 2015-07-20 | 2017-08-29 | Intel Corporation | Connectivity management for mobile wireless low-power wake-up radios |
-
2017
- 2017-06-28 CN CN201710505831.8A patent/CN109151957B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101558606A (en) * | 2006-12-14 | 2009-10-14 | 英特尔公司 | Method and apparatus of prioritizing services of wireless local area network |
| CN103945558A (en) * | 2014-03-27 | 2014-07-23 | 西安交通大学 | Self-adaption channel access control method based on network loads in wireless local area network |
| CN106332187A (en) * | 2015-06-30 | 2017-01-11 | 华为技术有限公司 | QoS parameter configuration method, device and system in WLAN |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109151957A (en) | 2019-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021081700A1 (en) | Data sending and receiving method and apparatus | |
| US11032778B2 (en) | Uplink channel power allocation method and apparatus | |
| US7408931B2 (en) | Methods for delivery in a wireless communications network | |
| CN105900478B (en) | The methods, devices and systems of wireless network coverage enhancement | |
| CN108924918B (en) | Access point associated with a wireless local area network and method performed by the access point | |
| US10306624B2 (en) | Method for notifying channel use time for sending uplink data, and method and device for sending uplink data | |
| US8335183B2 (en) | Provision of downlink packet access services to user equipment in spread spectrum communication network | |
| EP3247155A1 (en) | Paging method and apparatus for communication of m2m/mtc device operating in high power saving reception mode in a mobile communication system, and system thereof | |
| US20150036673A1 (en) | Systems and methods for communicating multi-destination traffic in a wireless network | |
| US20110103315A1 (en) | Coordinated Signaling of Scheduling Information for Uplink and Downlink Communications | |
| US7813307B2 (en) | Power save in IBSS mode of WLAN operation | |
| JP2009515401A (en) | Multicast and / or broadcast acknowledgment mechanism | |
| CN107431580A (en) | Authorize the method and apparatus for being used for transmitting upstream data in auxiliary access system | |
| CN110115095B (en) | Random access method, device and storage medium | |
| WO2021003713A1 (en) | Data transmission method and apparatus based on unlicensed uplink scheduling, and storage medium | |
| CN109151957B (en) | Communication method, communication device and communication equipment of wireless local area network | |
| CN110392994B (en) | HARQ feedback method, device and readable storage medium | |
| WO2022077227A1 (en) | Sidelink communication method and apparatus, and storage medium | |
| US9007978B2 (en) | Method and apparatus for improved multicast service | |
| WO2021027804A1 (en) | Communication method and apparatus, and computer-readable storage medium | |
| CN106792428A (en) | Base station, closely business function entity and communication resource distribution, dispatching method | |
| WO2020248100A1 (en) | Harq feedback method and apparatus, and storage medium | |
| US9866352B2 (en) | Method, device and storage medium for improving distance measure equipment interference resisting capability of LTE system | |
| CN109151956B (en) | Communication method, communication device and communication equipment of wireless local area network | |
| CN109151958B (en) | Communication method, communication device and communication equipment of wireless local area network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |