CN107809789B - Communication method, communication device, access point and station of wireless local area network - Google Patents
Communication method, communication device, access point and station of wireless local area network Download PDFInfo
- Publication number
- CN107809789B CN107809789B CN201610815693.9A CN201610815693A CN107809789B CN 107809789 B CN107809789 B CN 107809789B CN 201610815693 A CN201610815693 A CN 201610815693A CN 107809789 B CN107809789 B CN 107809789B
- Authority
- CN
- China
- Prior art keywords
- frame
- receiver
- period
- sleep
- 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
- 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
- H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a communication method, a communication device, an access point and a station of a wireless local area network, wherein the communication method of the wireless local area network comprises the following steps: generating a message frame, wherein the message frame comprises a sleep cycle of the equipment, and the sleep cycle represents the duration that a receiver of an IEEE802.11 data frame in the equipment does not sense an electric signal; transmitting the message frame; after the message frame is sent and the receiver of the IEEE802.11 data frame enters a sleep state, controlling the receiver of the wake-up frame in the device to listen for the wake-up frame at a preset period, wherein the preset period overlaps with the sleep period in time. The technical scheme of the invention enables the equipment in the dormant state to periodically monitor and receive the awakening frame, thereby effectively reducing the power consumption of the equipment and meeting the requirements of the WUR.
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 a wireless local area network, an access point, and a station.
Background
In 2016, 7 months, 802.11 has established a research group wur (wake Up receiver) of a next-generation Wi-Fi (Wireless Fidelity) technology, which is mainly applied to the aspect of internet of things and aims to save the power consumption of equipment as much as possible.
In the WUR research group, 802.11 devices are introduced with two types of receivers: a conventional IEEE (Institute of Electrical and Electronics Engineers) 802.11 data receiver and a wake up communication frame receiver. As shown in fig. 1, when no IEEE802.11 data needs to be received, the conventional 802.11 data receiver is in a sleep state, and the low power wake up frame receiver is in an awake state; as shown in fig. 2, when data needs to be received, the data sender may first send a wake-up frame and then send 802.11 data, and when the low-power wake-up frame receiver receives the wake-up frame, send a wake-up signal to the 802.11 data receiver, so that the 802.11 data receiver is in an awake state to receive 802.11 data.
In the discussion of WUR, there is a manuscript that suggests that the device receiving wake up frames may be periodic, which is more beneficial for device power saving. However, how to set the listening period of the wake up frame is not specified, and therefore how to reasonably set the listening period of the wake up frame to meet the requirement of the WUR becomes a technical problem to be urgently solved.
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, so that a device in a sleep state can periodically monitor and receive a wakeup frame, and further, the power consumption of the device can be effectively reduced, and the requirements of the WUR are met.
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, including: generating a message frame, wherein the message frame comprises a sleep cycle of the equipment, and the sleep cycle represents the duration that a receiver of an IEEE802.11 data frame in the equipment does not sense an electric signal; transmitting the message frame; after the message frame is sent and the receiver of the IEEE802.11 data frame enters a sleep state, controlling the receiver of the wake-up frame in the device to listen for the wake-up frame at a preset period, wherein the preset period overlaps with the sleep period in time.
In the technical scheme, after the message frame containing the sleep period of the equipment is sent and the receiver of the IEEE802.11 data frame enters the sleep state, the receiver of the wake-up frame is controlled to monitor the wake-up frame in the preset period, so that the wake-up frame can be periodically monitored and received, the power consumption of the equipment can be effectively reduced, and the requirements of the WUR are met. And the sleep period is overlapped with the monitoring period of the wake-up frame in time, so that the receiver of the wake-up frame can monitor the wake-up frame in the sleep period of the equipment, and further the IEEE802.11 data frame is awakened in time to carry out communication.
The IEEE802.11 data frame refers to a data frame transmitted through protocols such as 802.11a/b/g/n/ac/ax/ah, and follows the transmission power in the respective protocols, and the transmission power of the IEEE802.11 data frame is much higher than that of the wakeup frame; the wake-up frame is a wake-up frame, which is also a communication frame defined in 802.11.
Meanwhile, the receiver for receiving the wake-up frame and the IEEE802.11 data frame can be the same physical entity, is only separated logically, and controls the working state by using different internal operation instructions; in addition, the receiver receiving the wakeup frame and the IEEE802.11 data frame may also be two physical entities, and a communication interface exists between the receiver of the wakeup frame and the receiver of the IEEE802.11 data frame, and after the receiver of the wakeup frame receives the wake up frame, the communication interface sends a wakeup instruction to the receiver of the IEEE802.11 data frame to wake up the receiver of the IEEE802.11 data frame for communication.
In the above technical solution, preferably, the preset period is the sleep period or a half of the duration of the sleep period.
For example, if the sleep period is 10s, the preset period for listening for the wakeup frame may also be 10s, or the preset period for listening for the wakeup frame may be 5s, so that there is 5s of time for listening for the wakeup frame in the sleep period of 10 s. Certainly, the listening period of the wake up frame (i.e. the preset period) may also be other proportion of the duration of the sleep period, which is not described herein again, but a general principle is that the listening period of the wake up frame is not longer than the sleep period.
In any of the above technical solutions, preferably, the message frame includes an Information Element (IE), where the Information Element is used to indicate the sleep period.
Further, the information element includes a Duration field, and a value of the Duration field indicates a listening Duration of the receiver of the awake frame to the awake frame after the receiver of the IEEE802.11 data frame enters a sleep state.
In any of the above technical solutions, preferably, the message frame is a wakeup frame monitoring request frame. That is, in this solution, a new frame may be defined to indicate the sleep period of the device.
According to the second aspect of the present invention, there is also provided a communication method for a wireless local area network, including: receiving a message frame, wherein the message frame comprises a sleep cycle of a device, and the sleep cycle represents the duration that a receiver of an IEEE802.11 data frame in the device does not sense an electric signal; determining a monitoring period of a receiver of the wake-up frame in the equipment to the wake-up frame according to the sleep period of the equipment; when an IEEE802.11 data frame needs to be sent to the equipment, a wake-up frame is sent to the equipment in the listening period so as to wake up a receiver of the IEEE802.11 data frame to receive the IEEE802.11 data frame.
In the technical scheme, by receiving a message frame containing a sleep period of the device, determining a monitoring period of a receiver of a wake-up frame (namely, wake-up frame) in the device for the wake-up frame according to the sleep period of the device, and then sending the wake-up frame to the device in the monitoring period when an IEEE802.11 data frame needs to be sent, the device in the sleep state can be ensured to monitor the wake-up frame and wake up the IEEE802.11 data frame for communication, and the WUR requirement is met. Meanwhile, the equipment in the dormant state can periodically monitor wake up frames, and the power consumption of the equipment is effectively reduced.
According to the third aspect of the present invention, there is further provided a communication apparatus for a wireless local area network, including: a generating unit, configured to generate a message frame, where the message frame includes a sleep cycle of a device, and the sleep cycle represents a duration that a receiver of an IEEE802.11 data frame in the device does not sense an electrical signal; a transmitting unit configured to transmit the message frame; a processing unit, configured to control a receiver of a wake-up frame in the device to monitor the wake-up frame at a preset period after the sending unit sends the message frame and the receiver of the IEEE802.11 data frame enters a sleep state, where the preset period overlaps with the sleep period in time.
In the technical scheme, after the message frame containing the sleep period of the equipment is sent and the receiver of the IEEE802.11 data frame enters the sleep state, the receiver of the wake-up frame is controlled to monitor the wake-up frame in the preset period, so that the wake-up frame can be periodically monitored and received, the power consumption of the equipment can be effectively reduced, and the requirements of the WUR are met. And the sleep period is overlapped with the monitoring period of the wake-up frame in time, so that the receiver of the wake-up frame can monitor the wake-up frame in the sleep period of the equipment, and further the IEEE802.11 data frame is awakened in time to carry out communication.
The IEEE802.11 data frame refers to a data frame transmitted through protocols such as 802.11a/b/g/n/ac/ax/ah, and follows the transmission power in the respective protocols, and the transmission power of the IEEE802.11 data frame is much higher than that of the wakeup frame; the wake-up frame is a wake-up frame, which is also a communication frame defined in 802.11.
Meanwhile, the receiver of the wake-up frame and the receiver of the IEEE802.11 data frame may be the same physical entity, and are only logically separated, and different internal operation instructions are used to control the working state thereof; in addition, the receiver of the wakeup frame and the receiver of the IEEE802.11 data frame may also be two physical entities, and a communication interface exists between the receiver of the wakeup frame and the receiver of the IEEE802.11 data frame, and after the receiver of the wakeup frame receives the wake up frame, a wakeup instruction is sent to the receiver of the IEEE802.11 data frame through the communication interface to wake up the receiver of the IEEE802.11 data frame for communication.
In the above technical solution, preferably, the preset period is the sleep period or a half of the duration of the sleep period.
For example, if the sleep period is 10s, the preset period for listening for the wakeup frame may also be 10s, or the preset period for listening for the wakeup frame may be 5s, so that there is 5s of time for listening for the wakeup frame in the sleep period of 10 s. In addition, the listening period of the wake up frame may also be other proportion of the duration of the sleep period, which is not described herein again, but a general principle is that the listening period of the wake up frame is not longer than the sleep period.
In any of the above technical solutions, preferably, the message frame includes an information element, and the information element is used to indicate the sleep period.
Further, the information element includes a Duration field, and a value of the Duration field indicates a listening Duration of the receiver of the awake frame to the awake frame after the receiver of the IEEE802.11 data frame enters a sleep state.
In any of the above technical solutions, preferably, the message frame is a wakeup frame monitoring request frame. That is, in this solution, a new frame may be defined to indicate the sleep period of the device.
According to the fourth aspect of the present invention, there is also provided a communication apparatus for a wireless local area network, including: a receiving unit, configured to receive a message frame, where the message frame includes a sleep cycle of a device, and the sleep cycle represents a duration that a receiver of an IEEE802.11 data frame in the device does not sense an electrical signal; a determining unit, configured to determine, according to a sleep cycle of the device, a monitoring cycle of a receiver of a wakeup frame in the device to the wakeup frame; a sending unit, configured to send a wakeup frame to the device in the listening period when an IEEE802.11 data frame needs to be sent to the device, so as to wake up a receiver of the IEEE802.11 data frame to receive the IEEE802.11 data frame.
In the technical scheme, by receiving a message frame containing a sleep period of the device, determining a monitoring period of a receiver of a wake-up frame (namely, wake-up frame) in the device for the wake-up frame according to the sleep period of the device, and then sending the wake-up frame to the device in the monitoring period when an IEEE802.11 data frame needs to be sent, the device in the sleep state can be ensured to monitor the wake-up frame and wake up the IEEE802.11 data frame for communication, and the WUR requirement is met. Meanwhile, the equipment in the dormant state can periodically monitor wake up frames, and the power consumption of the equipment is effectively reduced.
According to the fifth aspect of the present invention, there is also provided an access point, comprising: communication means of a wireless local area network as described in the third aspect above; and/or a communication device of a wireless local area network as described in the fourth aspect above.
According to a sixth aspect of the present invention, there is also provided a station, comprising: communication means of a wireless local area network as described in the third aspect above; and/or a communication device of a wireless local area network as described in the fourth aspect above.
Through the technical scheme, the equipment in the sleep state can periodically monitor and receive the awakening frame, so that the power consumption of the equipment can be effectively reduced, and the requirements of the WUR are met.
Drawings
Fig. 1 shows a schematic diagram of the state of an 802.11 data receiver and a wake up communication frame receiver when no 802.11 data frame needs to be received;
fig. 2 is a diagram showing the state of an 802.11 data receiver and a wake up communication frame receiver when there is an 802.11 data frame to be received;
fig. 3 is a flowchart illustrating a communication method of a wireless local area network according to a first embodiment of the present invention;
fig. 4 shows a schematic block diagram of a communication device of a wireless local area network according to a first embodiment of the present invention;
fig. 5 is a flowchart illustrating a communication method of a wireless lan according to a second embodiment of the present invention;
fig. 6 shows a schematic block diagram of a communication device of a wireless local area network according to a second embodiment of the present invention;
fig. 7 illustrates a structural diagram of an IE for notifying a sleep period 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. 3 is a flowchart illustrating a communication method of a wireless lan according to a first embodiment of the present invention.
As shown in fig. 3, a communication method of a wireless local area network according to a first embodiment of the present invention includes:
step S30, generating a message frame, where the message frame includes a sleep cycle of the device, and the sleep cycle represents a duration that a receiver of an IEEE802.11 data frame in the device does not sense an electrical signal.
Step S32, sending the message frame.
Step S34, after the message frame is sent and the receiver of the IEEE802.11 data frame enters the sleep state, controlling the receiver of the wake-up frame in the device to listen to the wake-up frame at a preset period, wherein the preset period overlaps with the sleep period in time.
Further, the preset period is the sleep period or half of the duration of the sleep period. For example, if the sleep period is 10s, the preset period for listening for the wakeup frame may also be 10s, or the preset period for listening for the wakeup frame may be 5s, so that there is 5s of time for listening for the wakeup frame in the sleep period of 10 s. Certainly, the listening period of the wake up frame (i.e. the preset period) may also be other proportion of the duration of the sleep period, which is not described herein again, but a general principle is that the listening period of the wake up frame is not longer than the sleep period.
Further, an information element (i.e., IE) is included in the message frame, and the information element is used to indicate the sleep period.
Further, the information element includes a Duration field, and a value of the Duration field indicates a listening Duration of the receiver of the awake frame to the awake frame after the receiver of the IEEE802.11 data frame enters a sleep state.
Further, the message frame is a wakeup frame monitoring request frame. That is, in this solution, a new frame may be defined to indicate the sleep period of the device.
The IEEE802.11 data frame refers to a data frame transmitted through protocols such as 802.11a/b/g/n/ac/ax/ah, and follows the transmission power in the respective protocols, and the transmission power of the IEEE802.11 data frame is much higher than that of the wakeup frame; the above-mentioned wake-up frame is a wake-up frame, and the wake-up frame is also a communication frame defined in 802.11. The receivers for receiving the wake-up frame and the IEEE802.11 data frame may be the same physical entity, but are logically separated, and control their operating states with different internal operation instructions; in addition, the receiver receiving the wakeup frame and the IEEE802.11 data frame may also be two physical entities, and a communication interface exists between the receiver of the wakeup frame and the receiver of the IEEE802.11 data frame, and after the receiver of the wakeup frame receives the wake up frame, the communication interface sends a wakeup instruction to the receiver of the IEEE802.11 data frame to wake up the receiver of the IEEE802.11 data frame for communication.
In the technical scheme shown in fig. 3, after the message frame including the sleep period of the device is sent and the receiver of the IEEE802.11 data frame enters the sleep state, the receiver of the wakeup frame is controlled to monitor the wakeup frame in the preset period, so that the wakeup frame can be periodically monitored and received, the power consumption of the device can be effectively reduced, and the requirements of the WUR are met. And the sleep period is overlapped with the monitoring period of the wake-up frame in time, so that the receiver of the wake-up frame can monitor the wake-up frame in the sleep period of the equipment, and further the IEEE802.11 data frame is awakened in time to carry out communication.
The main body of the communication method shown in fig. 3 may be a router or the like serving as an access point, or a mobile phone or a PDA (Personal Digital Assistant) serving as a station.
Fig. 4 shows a schematic block diagram of a communication device of a wireless local area network according to a first embodiment of the present invention.
As shown in fig. 4, a communication apparatus 400 of a wireless lan according to a first embodiment of the present invention includes: a generating unit 402, a transmitting unit 404 and a processing unit 406.
The generating unit 402 is configured to generate a message frame, where the message frame includes a sleep cycle of a device, and the sleep cycle represents a duration that a receiver of an IEEE802.11 data frame in the device does not sense an electrical signal; a sending unit 404 configured to send the message frame; the processing unit 406 is configured to control a receiver of the wake-up frame in the device to listen for the wake-up frame at a preset period after the sending unit 404 sends the message frame and the receiver of the IEEE802.11 data frame enters a sleep state, where the preset period overlaps with the sleep period in time.
In a specific implementation, the generating unit 402 may be a signal processor, a central processing unit, a baseband processor, or the like; the transmitting unit 404 may be a transmitter or an antenna, etc.; the processing unit 406 may be a central processing unit or a baseband processor, etc.
In the technical scheme, after the message frame containing the sleep period of the equipment is sent and the receiver of the IEEE802.11 data frame enters the sleep state, the receiver of the wake-up frame is controlled to monitor the wake-up frame in the preset period, so that the wake-up frame can be periodically monitored and received, the power consumption of the equipment can be effectively reduced, and the requirements of the WUR are met. And the sleep period is overlapped with the monitoring period of the wake-up frame in time, so that the receiver of the wake-up frame can monitor the wake-up frame in the sleep period of the equipment, and further the IEEE802.11 data frame is awakened in time to carry out communication.
The IEEE802.11 data frame refers to a data frame transmitted through protocols such as 802.11a/b/g/n/ac/ax/ah, and follows the transmission power in the respective protocols, and the transmission power of the IEEE802.11 data frame is much higher than that of the wakeup frame; the wake-up frame is a wake-up frame, which is also a communication frame defined in 802.11. The receiver of the wake-up frame and the receiver of the IEEE802.11 data frame may be the same physical entity, but are logically separated, and the working states thereof are controlled by different internal operation instructions; in addition, the receiver of the wakeup frame and the receiver of the IEEE802.11 data frame may also be two physical entities, and a communication interface exists between the receiver of the wakeup frame and the receiver of the IEEE802.11 data frame, and after the receiver of the wakeup frame receives the wake up frame, a wakeup instruction is sent to the receiver of the IEEE802.11 data frame through the communication interface to wake up the receiver of the IEEE802.11 data frame for communication.
Further, the preset period is the sleep period or half of the duration of the sleep period. For example, if the sleep period is 10s, the preset period for listening for the wakeup frame may also be 10s, or the preset period for listening for the wakeup frame may be 5s, so that there is 5s of time for listening for the wakeup frame in the sleep period of 10 s. In addition, the listening period of the wake up frame may also be other proportion of the duration of the sleep period, which is not described herein again, but a general principle is that the listening period of the wake up frame is not longer than the sleep period.
Further, the message frame includes an information element, and the information element is used for indicating the sleep period.
Further, the information element includes a Duration field, and a value of the Duration field indicates a listening Duration of the receiver of the awake frame to the awake frame after the receiver of the IEEE802.11 data frame enters a sleep state.
Further, the message frame is a wakeup frame monitoring request frame. That is, in this solution, a new frame may be defined to indicate the sleep period of the device.
Fig. 5 is a flowchart illustrating a communication method of a wireless lan according to a second embodiment of the present invention.
As shown in fig. 5, a communication method of a wireless local area network according to a second embodiment of the present invention includes:
step S50, receiving a message frame, where the message frame includes a sleep cycle of a device, and the sleep cycle represents a duration that a receiver of an IEEE802.11 data frame in the device does not sense an electrical signal.
Step S52, determining a monitoring period of the receiver of the wakeup frame in the device to the wakeup frame according to the sleep period of the device.
Step S54, when an IEEE802.11 data frame needs to be sent to the device, a wake-up frame is sent to the device in the listening period to wake up a receiver of the IEEE802.11 data frame to receive the IEEE802.11 data frame.
In the technical scheme, by receiving a message frame containing a sleep period of the device, determining a monitoring period of a receiver of a wake-up frame (namely, wake-up frame) in the device for the wake-up frame according to the sleep period of the device, and then sending the wake-up frame to the device in the monitoring period when an IEEE802.11 data frame needs to be sent, the device in the sleep state can be ensured to monitor the wake-up frame and wake up the IEEE802.11 data frame for communication, and the WUR requirement is met. Meanwhile, the equipment in the dormant state can periodically monitor wake up frames, and the power consumption of the equipment is effectively reduced.
The main body of the communication method shown in fig. 5 may be a router or the like as an access point, or a mobile phone or a PDA (Personal Digital Assistant) as a station.
Fig. 6 shows a schematic block diagram of a communication device of a wireless local area network according to a second embodiment of the present invention.
As shown in fig. 6, a communication apparatus 600 of a wireless lan according to a second embodiment of the present invention includes: a receiving unit 602, a determining unit 604 and a transmitting unit 606.
The receiving unit 602 is configured to receive a message frame, where the message frame includes a sleep cycle of a device, and the sleep cycle represents a duration that a receiver of an IEEE802.11 data frame in the device does not sense an electrical signal; the determining unit 604 is configured to determine, according to the sleep cycle of the device, a monitoring cycle of a receiver of the wakeup frame in the device for the wakeup frame; the sending unit 606 is configured to send a wake-up frame to the device in the listening period when an IEEE802.11 data frame needs to be sent to the device, so as to wake up a receiver of the IEEE802.11 data frame to receive the IEEE802.11 data frame.
In a specific implementation, the receiving unit 602 may be a receiver or an antenna, etc.; the determining unit 604 may be a central processor or a baseband processor, etc.; the transmitting unit 606 may be a transmitter or an antenna, etc.
In the technical scheme, by receiving a message frame containing a sleep period of the device, determining a monitoring period of a receiver of a wake-up frame (namely, wake-up frame) in the device for the wake-up frame according to the sleep period of the device, and then sending the wake-up frame to the device in the monitoring period when an IEEE802.11 data frame needs to be sent, the device in the sleep state can be ensured to monitor the wake-up frame and wake up the IEEE802.11 data frame for communication, and the WUR requirement is met. Meanwhile, the equipment in the dormant state can periodically monitor wake up frames, and the power consumption of the equipment is effectively reduced.
The present invention also provides an access point, including: a communication device 400 of a wireless local area network as shown in fig. 4; and/or a communication device 600 of a wireless local area network as shown in fig. 6.
The invention also proposes a station comprising: a communication device 400 of a wireless local area network as shown in fig. 4; and/or a communication device 600 of a wireless local area network as shown in fig. 6.
In summary, the technical solution of the present invention is mainly that before entering the sleep state, the device sends its sleep cycle to the other side, and monitors/receives wake up frames in a preset cycle in the sleep cycle.
The method comprises the following specific steps:
1. the device's actions before going to sleep.
A device may negotiate with its communicating parties to determine how long its sleep period is before entering a sleep state. Such as: during the communication between the station and the AP, the station may negotiate its sleep period with the AP, for example, the sleep period may be several times the beacon frame period.
Where a sleep period represents the duration of time during which the receiver of an IEEE802.11 data frame in a device does not perceive an electrical signal.
After the device enters a sleep state, that is, after a receiver of an IEEE802.11 data frame in the device does not sense an electrical signal, the receiver of a wake up frame in the device listens/receives the wake up frame at a preset period, where the preset period is the sleep period or half of the sleep period.
2. The sleep period of the device may be notified in the form of an IE (Information Element). The structure of IE is shown in fig. 7, and the Duration field indicates the Duration of listening wake up frame when the device enters into sleep state after negotiating the sleep period with the communication party, such as: the station performs sleep negotiation with the AP, and the listening period may be a CF (Contention-Free non-Contention) period broadcast by the AP.
In addition, the IE shown in fig. 7 may be encapsulated in a communication frame sent by the device to its communication party, such as a frame newly defined as wake up listen request frame.
The technical scheme of the invention is described in detail in the above with reference to the accompanying drawings, and the invention provides a new communication scheme of a wireless local area network, so that a device in a dormant state can periodically monitor and receive a wakeup frame, further, the power consumption of the device can be effectively reduced, and the requirements of a WUR are met.
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 (12)
1. A communication method for a wireless local area network, comprising:
generating a message frame, wherein the message frame comprises a sleep cycle of the equipment, and the sleep cycle represents the duration that a receiver of an IEEE802.11 data frame in the equipment does not sense an electric signal;
transmitting the message frame;
after the message frame is sent and the receiver of the IEEE802.11 data frame enters a sleep state, controlling the receiver of the wake-up frame in the device to monitor the wake-up frame at a preset period, wherein the preset period and the sleep period are overlapped in time;
the preset period is the sleep period or half of the time length of the sleep period.
2. The method of claim 1, wherein the message frame comprises an information element, and wherein the information element is used to indicate the sleep period.
3. The communication method of claim 2, wherein the information element comprises a Duration field, and a value of the Duration field indicates a listening Duration of the receiver of the wakeup frame for the receiver of the IEEE802.11 data frame after the receiver of the wakeup frame enters the sleep state.
4. The method according to any of claims 1 to 3, wherein the message frame is a wakeup frame listen request frame.
5. A communication method for a wireless local area network, comprising:
receiving a message frame, wherein the message frame comprises a sleep cycle of a device, and the sleep cycle represents the duration that a receiver of an IEEE802.11 data frame in the device does not sense an electric signal;
determining a monitoring period of a receiver of the wake-up frame in the equipment to the wake-up frame according to the sleep period of the equipment;
when an IEEE802.11 data frame needs to be sent to the equipment, sending a wakeup frame to the equipment in the listening period so as to wake up a receiver of the IEEE802.11 data frame to receive the IEEE802.11 data frame;
the monitoring period is the preset period, the monitoring period overlaps with the sleep period in time, and the monitoring period is the sleep period or half of the time length of the sleep period;
the receiver receiving the wake-up frame and the IEEE802.11 data frame may be the same physical entity, or the receiver receiving the wake-up frame and the IEEE802.11 data frame may be two physical entities.
6. A communication apparatus of a wireless local area network, comprising:
a generating unit, configured to generate a message frame, where the message frame includes a sleep cycle of a device, and the sleep cycle represents a duration that a receiver of an IEEE802.11 data frame in the device does not sense an electrical signal;
a transmitting unit configured to transmit the message frame;
a processing unit, configured to control a receiver of a wake-up frame in the device to monitor the wake-up frame at a preset period after the sending unit sends the message frame and the receiver of the IEEE802.11 data frame enters a sleep state, where the preset period overlaps with the sleep period in time;
the preset period is the sleep period or half of the time length of the sleep period.
7. The apparatus of claim 6, wherein the message frame comprises an information element, and wherein the information element is used to indicate the sleep period.
8. The apparatus of claim 7, wherein the information element comprises a Duration field, and a value of the Duration field indicates a listening Duration of the receiver of the wakeup frame for the receiver of the IEEE802.11 data frame after the receiver of the wakeup frame enters the sleep state.
9. Communication device of a wireless local area network according to any of claims 6 to 8, wherein the message frame is a wakeup frame listen request frame.
10. A communication apparatus of a wireless local area network, comprising:
a receiving unit, configured to receive a message frame, where the message frame includes a sleep cycle of a device, and the sleep cycle represents a duration that a receiver of an IEEE802.11 data frame in the device does not sense an electrical signal;
a determining unit, configured to determine, according to a sleep cycle of the device, a monitoring cycle of a receiver of a wakeup frame in the device to the wakeup frame;
a sending unit, configured to send a wakeup frame to the device in the listening period when an IEEE802.11 data frame needs to be sent to the device, so as to wake up a receiver of the IEEE802.11 data frame to receive the IEEE802.11 data frame;
the monitoring period is the preset period, the monitoring period overlaps with the sleep period in time, and the monitoring period is the sleep period or half of the time length of the sleep period;
the receiver receiving the wake-up frame and the IEEE802.11 data frame may be the same physical entity, or the receiver receiving the wake-up frame and the IEEE802.11 data frame may be two physical entities.
11. An access point, comprising:
communication means of a wireless local area network according to any one of claims 6 to 9; and/or
Communication device of a wireless local area network according to claim 10.
12. A station, comprising:
communication means of a wireless local area network according to any one of claims 6 to 9; and/or
Communication device of a wireless local area network according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610815693.9A CN107809789B (en) | 2016-09-09 | 2016-09-09 | Communication method, communication device, access point and station of wireless local area network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610815693.9A CN107809789B (en) | 2016-09-09 | 2016-09-09 | Communication method, communication device, access point and station of wireless local area network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107809789A CN107809789A (en) | 2018-03-16 |
| CN107809789B true CN107809789B (en) | 2021-06-22 |
Family
ID=61569757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610815693.9A Active CN107809789B (en) | 2016-09-09 | 2016-09-09 | Communication method, communication device, access point and station of wireless local area network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107809789B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108449786B (en) * | 2018-03-23 | 2021-06-01 | 深圳市华奥通通信技术有限公司 | Multi-time-window signal receiving and transmitting method and system |
| CN108513345B (en) * | 2018-03-28 | 2021-05-25 | 深圳市华奥通通信技术有限公司 | Bidirectional awakening method and system |
| CN110493758B (en) | 2018-05-14 | 2023-01-13 | 阿里巴巴集团控股有限公司 | Bluetooth Mesh network and network distribution method, equipment and storage medium thereof |
| CN110636478B (en) * | 2018-06-22 | 2023-04-14 | 阿里巴巴集团控股有限公司 | Bluetooth Mesh network system, communication method, device and storage medium thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247674A (en) * | 1996-12-18 | 2000-03-15 | 艾利森公司 | Reduced power sleep modes for mobile telephones |
| EP2115965A1 (en) * | 2006-12-15 | 2009-11-11 | Ubiwave | Low-power wireless multi-hop networks |
| CN101815347A (en) * | 2009-01-06 | 2010-08-25 | 汤姆逊许可公司 | A method for scheduling wake/sleep cycles by a central device in a wireless network |
| CN103369597A (en) * | 2012-03-31 | 2013-10-23 | 中兴通讯股份有限公司 | Radio-frame sending method and device |
| CN104206001A (en) * | 2012-04-20 | 2014-12-10 | 华为技术有限公司 | Method and apparatus for data transmission in wireless network |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100725406B1 (en) * | 2005-09-26 | 2007-06-07 | 삼성전자주식회사 | Method and apparatus for saving power by controlling listening periods in wireless network communication system which has plural power saving mode |
| CN101610566B (en) * | 2008-06-19 | 2012-05-30 | 财团法人工业技术研究院 | System and method for dynamically regulating dormant/waking time course of wireless network device |
| KR101088180B1 (en) * | 2009-02-16 | 2011-12-02 | 한국과학기술원 | SCHEDULED POWER-SAVING METHOD IN IEEE 802.16e SYSTEM |
| DE102009047199A1 (en) * | 2009-11-26 | 2011-06-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | A data transmission device and a method for activating a data transmission |
| KR101102349B1 (en) * | 2009-12-29 | 2012-01-03 | 한국과학기술원 | Method and Apparatus for Controlling Sleep Mode in Wireless Communication Networks |
| KR101645461B1 (en) * | 2010-01-12 | 2016-08-12 | 삼성전자주식회사 | Apparatus and method for auto conntecting wlan in portable terminal |
| CN102076067A (en) * | 2010-12-23 | 2011-05-25 | 北京星网锐捷网络技术有限公司 | Sleeping method, device and equipment of station and communication system |
| CN103096419B (en) * | 2011-10-31 | 2016-11-16 | 华为技术有限公司 | A kind of terminal management method and access point and terminal |
| CN103327579B (en) * | 2012-03-19 | 2019-07-09 | 中兴通讯股份有限公司 | Dormancy method and device |
| US9544848B2 (en) * | 2012-10-24 | 2017-01-10 | Qualcomm Incorporated | Methods and apparatus for communicating short paging messages in a wireless communication network |
-
2016
- 2016-09-09 CN CN201610815693.9A patent/CN107809789B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247674A (en) * | 1996-12-18 | 2000-03-15 | 艾利森公司 | Reduced power sleep modes for mobile telephones |
| EP2115965A1 (en) * | 2006-12-15 | 2009-11-11 | Ubiwave | Low-power wireless multi-hop networks |
| CN101815347A (en) * | 2009-01-06 | 2010-08-25 | 汤姆逊许可公司 | A method for scheduling wake/sleep cycles by a central device in a wireless network |
| CN103369597A (en) * | 2012-03-31 | 2013-10-23 | 中兴通讯股份有限公司 | Radio-frame sending method and device |
| CN104206001A (en) * | 2012-04-20 | 2014-12-10 | 华为技术有限公司 | Method and apparatus for data transmission in wireless network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107809789A (en) | 2018-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI676368B (en) | Information transmission and channel monitoring processing method and device | |
| WO2018192374A1 (en) | Site wake-up method and site | |
| CN102055574B (en) | Apparatus and method for negotiating sleep cycle setting between base station and mobile station in wireless communication system | |
| CN107809789B (en) | Communication method, communication device, access point and station of wireless local area network | |
| WO2018107498A1 (en) | Discontinuous reception method and device | |
| US11218961B2 (en) | Power saving for wireless device | |
| WO2018050087A1 (en) | Method and apparatus for transmitting wur (wake-up radio) message | |
| CN109041179B (en) | Communication method, communication device and communication equipment of wireless local area network | |
| CN110753387B (en) | Monitoring method of downlink control channel and control method of downlink control channel monitoring | |
| CN105940729B (en) | Method and device for receiving D2D discovery information | |
| EP3512262A1 (en) | Wireless local area network communications method, receiver, access point and station | |
| CN109756956B (en) | Communication method and communication device, access point equipment and station equipment | |
| CN109429300B (en) | Communication method and device of wireless local area network, access point equipment and site equipment | |
| CN109151956B (en) | Communication method, communication device and communication equipment of wireless local area network | |
| WO2018149280A1 (en) | Data receiving method and device | |
| WO2022083418A1 (en) | Energy saving signal transmission method and apparatus | |
| WO2018233646A1 (en) | Wake-up method, access point, and station | |
| CN108738125B (en) | Method, device, access point and station for wireless local area network time synchronization | |
| CN109699061B (en) | Communication method and communication device, access point equipment and station equipment | |
| CN109729569B (en) | Communication method and communication device, access point equipment and station equipment | |
| CN108712775B (en) | Communication method and communication device, access point equipment and station equipment | |
| WO2021030987A1 (en) | Method and device for conflict resolution | |
| CN109756958B (en) | Communication method and communication device, access point equipment and station equipment | |
| CN109219154B (en) | Communication method, communication device and communication equipment of wireless local area network | |
| CN109922514B (en) | Communication method and communication device, access point equipment and station equipment |
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 |