CN107787029B - Method and device for transmitting wake-up frame in wireless local area network - Google Patents

Abstract

Embodiments of the present invention disclose a method and device for transmitting a wake-up frame in a wireless local area network. The method for transmitting a wake-up frame in a wireless local area network includes: generating a wake-up frame, where the wake-up frame includes a first number used to indicate at least one station to be woken up. One indication information and second indication information used to indicate a reception parameter of the at least one station, where the reception parameter is a reception configuration parameter for the main transceiver module of the station to wake up from a sleep state; and the wakeup frame is sent. By adopting the embodiment of the present invention, the wake-up of at least one station can be realized by designing the wake-up frame.

Description

Method and device for transmitting wake-up frame in wireless local area network

technical field

The present invention relates to the technical field of wireless networks, and in particular, to a method and device for transmitting a wake-up frame in a wireless local area network.

Background technique

In the Wireless Fidelity (WiFi) network, a considerable part of the energy of the device is wasted in idle listening when there is no received signal. The current traditional 802.11 protocol (802.11b/a/g/n/ac, etc.) related solutions The solution focuses on optimizing the device sleep strategy. In addition to optimizing the sleep strategy, another technical way to reduce the energy waste of equipment idle listening is to use a Low Power Wake Up Receiver (LP-WUR) (here abbreviated as WUR). The core idea is that the receiver device (such as STA) includes the traditional 802.11 transceiver (802.11 main radio, 802.11 main transceiver module, WiFi main transceiver module), and adds a low-power wake-up receiver (WUR) part, as shown in Figure 3 As shown, when the 802.11 main transceiver module enters deep sleep, the low-power WUR wakes up and starts to work. If other devices (the AP on the left in the figure) need to communicate with the device with the WUR and 802.11 main transceiver module (the STA on the right in the figure), the AP first sends a WUR wake-up frame (Wake Up Packet, WUP) to the WUR , WUR wakes up the 802.11 main transceiver module of the STA after correctly receiving the WUP sent to itself, and then goes to sleep by itself, and the AP communicates with the awake 802.11 main transceiver module. When the 802.11 main transceiver module and the AP complete the communication, it will go to sleep, and at the same time the WUR wakes up and starts to listen to whether there is a WUP sent to itself, so as to wake up the 802.11 main transceiver module.

This technology uses low-power WUR to replace the 802.11 main transceiver module to listen to the channel when the medium is idle (here it is expected that the energy consumption of the WUR listening/receiving state is about 0.1-1% of the 802.11 main transceiver module, that is, less than 100uW), It can effectively reduce the waste of energy when the device is idle listening.

802.11ax introduces Orthogonal Frequency Division Multiple Access (OFDMA) technology to realize simultaneous point-to-multipoint transmission. The AP can simultaneously transmit different data signals to multiple sites on multiple orthogonal sub-channels; in addition, multiple sites can simultaneously transmit data signals to the AP through multiple orthogonal sub-channels.

However, it has not yet proposed how to design the wake-up frame structure and content so that it not only has a single-site wake-up function, but also has a multi-site simultaneous wake-up function to meet the needs of 11ax multi-site simultaneous transmission.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a method and device for transmitting a wake-up frame in a wireless local area network. By designing the wake-up frame, at least one station can be woken up.

In a first aspect, an embodiment of the present invention provides a method for transmitting a wake-up frame in a wireless local area network. The method is executed by an access point, and the access point realizes interaction with a station associated with the access point, and realizes the communication of at least one Wake-up of the master transceiver module of the site. Optionally, a wake-up frame is generated, where the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a reception parameter of the at least one station, where the reception parameter is all The main transceiver module of the site is woken up from the sleep state to receive configuration parameters; send the wake-up frame.

In a possible design, the above-mentioned receiving parameter includes time indication information used to indicate that the main transceiver module is woken up, and the time indication information includes the time when the main transceiver module is woken up or when the main transceiver module is woken up. The preset flag corresponding to the wake-up time, for example, the preset time flag for immediate wake-up is all 0s.

In another possible design, the above-mentioned receiving parameter further includes indication information of the time length of the main transceiver module being woken up.

In another possible design, the receiving parameter further includes a wake-up time interval length during which the main transceiver module is periodically woken up.

In another possible design, the receiving parameter includes the time when the main transceiver module returns to the sleep state.

In another possible design, the receiving parameter further includes indication information of the length of time for the main transceiver module to return to the sleep state.

In another possible design, the receiving parameter further includes a sleep time interval length during which the main transceiver module periodically returns to the sleep state.

In another possible design, the receiving parameter includes receiving mode indication information after the main transceiver module is woken up from the dormant state;

Wherein, the receiving mode indication information includes at least one of the number of received streams and the received bandwidth.

In another possible design, the wake-up frame includes common information and at least one group information, the first indication information includes identification information in each group information in the at least one group information, and one of the group information The identification information in is used to indicate at least two sites, and the identification information includes a group identification or at least two site identifications, and one of the group identifications corresponds to at least two preset sites; or,

The wake-up frame includes public information and at least one site information, the first indication information includes a site identifier in each of the at least one site information, and one piece of the site information includes one of the site identifiers.

In another possible design, the reception parameters of the at least two stations indicated by the identification information in one piece of the group information are the same; the second indication information includes each of the at least one group information The reception parameters and/or indication characters of the at least two stations indicated by the identification information in the group information, and the indication characters are used to indicate whether the reception parameters of the at least two stations indicated by the group information are the same as those of the at least two stations indicated in the group information. The receiving parameters of the stations indicated by the identification information in the group information preceding the group information are the same.

In another possible design, the second indication information includes a receiving parameter of a site identified by a site identifier of each site information in the at least one site information, and one piece of the site information includes a The station identifier is the receiving parameter of the station identified by the station identifier.

In another possible design, the common information includes frame structure type indication information, where the frame structure type indication information is used to indicate the frame structure type of the wake-up frame.

In another possible design, if the frame structure type of the wake-up frame is a single-group information structure, the wake-up frame includes one of the group information;

If the frame structure type of the wake-up frame is a multi-group information structure, the wake-up frame includes at least two groups of information;

If the frame structure type of the wake-up frame is a single-site information structure, the wake-up frame includes one of the site information;

If the frame structure type of the wake-up frame is a multi-site information structure; if the wake-up frame includes at least two site information.

In another possible design, the common information includes length information, and the length information is used to indicate an end position of the wake-up frame.

In another possible design, the wake-up frame further includes frame type indication information; the frame type indication information is a first identifier, and the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating the reception parameters of the at least one station; the frame type indication information is a second identifier, and the wake-up frame includes third indication information for indicating the basic service set BSS information parameter, the The BSS information parameter is the information parameter of the BSS where the main transceiver module of the site currently in the dormant state is located.

In another possible design, the BSS information parameters include at least one of timestamp, channel number, frequency band number, bandwidth center frequency, beacon frame arrival time, and beacon frame interval.

In another possible design, the wake-up frame is a medium access control layer MAC frame or a physical PHY frame.

In another possible design, the frame body of the MAC frame includes a common field and at least one single-information field; the common information is carried by the common field of the MAC frame, and the at least one group information or all The at least one site information is carried by the at least one single information field, and one group information or one site information corresponds to one of the single information fields.

In another possible design, the PHY frame includes a first signaling field and a second signaling field; the common information is carried by the first signaling field, the at least one group information or the at least one group information One site information is carried by the second signaling field.

In a second aspect, an embodiment of the present invention provides a method for transmitting a wake-up frame in a wireless local area network. The method is executed by a target site, and the target site realizes interaction with an associated access point and realizes the main transceiver to the target site. Wake-up of the module. Optionally, receive a wake-up frame, where the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a reception parameter of the at least one station, where the reception parameter is all receiving configuration parameters that the main transceiver module of the site is woken up from the dormant state; according to the first indication information, determine whether the target site is a site to be woken up, and if so, configure the main Receive parameters for the transceiver module to wake up from the sleep state.

In another possible design, the wake-up frame further includes frame type indication information; the frame type indication information is a first identifier, and the wake-up frame includes the first indication information and the second indication information; The frame type indication information is the second identifier, and the wake-up frame includes third indication information for indicating the BSS information parameter of the basic service set, where the BSS information parameter is where the main transceiver module of the station currently in the dormant state is located. Information parameters of BSS;

After the target station receives the wake-up frame, it also includes:

Judging that the frame type indication information is the first identifier or the second identifier;

The determining whether the target site is a site to be awakened according to the first indication information includes:

If the frame type indication information is the first identifier, it is determined whether the target station is a station to be woken up according to the first indication information.

In a third aspect, an embodiment of the present invention provides an apparatus for transmitting a wake-up frame in a wireless local area network, which is applied to an access point. The apparatus for transmitting a wake-up frame in a wireless local area network includes a generating unit and a transceiving unit. The generating unit is used to generate A wake-up frame, the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a reception parameter of the at least one station, the reception parameter being the main The transceiver module is woken up from the sleep state to receive configuration parameters; the transceiver unit is configured to send the wake-up frame.

In a fourth aspect, an embodiment of the present invention provides an apparatus for transmitting a wake-up frame in a wireless local area network, which is applied to a target site. The apparatus for transmitting a wake-up frame in the wireless local area network includes a transceiver unit and a processing unit, and the transceiver unit is used for receiving wake-up frame, the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a receiving parameter of the at least one station, where the receiving parameter is the main transceiver of the station The module is woken up from the sleep state to receive configuration parameters; the processing unit is configured to determine whether the target site is a site to be woken up according to the first indication information, and if so, configure the target site according to the second indication information The main transceiver module is woken up from the sleep state to receive parameters.

In a fifth aspect, an embodiment of the present invention provides an apparatus for transmitting a wake-up frame in a wireless local area network, which is applied to an access point. The apparatus for transmitting a wake-up frame in a wireless local area network includes a memory for storing computer-executable program codes; a transceiver, and a processor coupled to the memory and the transceiver;

The program code includes instructions, when the processor executes the instructions, the instructions cause the apparatus for transmitting a wake-up frame in the wireless local area network to perform the following operations: generate a wake-up frame, the wake-up frame includes instructions for indicating to be first indication information of the at least one station that is awakened and second indication information used to indicate a reception parameter of the at least one station, where the reception parameter is a reception configuration parameter for the main transceiver module of the station to be awakened from a dormant state; The wake-up frame is sent.

In a sixth aspect, an embodiment of the present invention provides an apparatus for transmitting a wake-up frame in a wireless local area network, which is applied to a target site. The apparatus for transmitting a wake-up frame in the wireless local area network includes a memory for storing computer-executable program codes; a transceiver, and a processor coupled to the memory and the transceiver;

The program code includes instructions, when the processor executes the instructions, the instructions cause the apparatus for transmitting a wake-up frame in the wireless local area network to perform the following operations: receiving a wake-up frame, the wake-up frame including first indication information of the at least one station that is awakened and second indication information used to indicate a reception parameter of the at least one station, where the reception parameter is a reception configuration parameter for the main transceiver module of the station to be awakened from a dormant state; According to the first indication information, it is determined whether the target site is a site to be woken up, and if so, configure the reception parameters for the main transceiver module of the target site to wake up from the sleep state according to the second indication information.

In a seventh aspect, an embodiment of the present invention provides a computer storage medium for storing computer software instructions used by the apparatus for transmitting wake-up frames in the wireless local area network of the third aspect, including the computer software instructions for executing the above-mentioned first aspect. program.

In an eighth aspect, an embodiment of the present invention provides a computer storage medium for storing computer software instructions used by the apparatus for transmitting wake-up frames in the wireless local area network of the fourth aspect, including the computer software instructions for executing the above-mentioned second aspect. program.

In this embodiment of the present invention, a wake-up frame is generated, where the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a reception parameter of the at least one station, where the reception parameter is a station The main transceiver module is woken up from the sleep state to receive configuration parameters and send the wake-up frame. Through the design of the wake-up frame, the wake-up of at least one station and the indication of the receiving parameters can be realized.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic diagram of an application scenario provided by an embodiment of the present invention;

2 is a schematic diagram of a traditional signal monitoring and sleep strategy provided by an embodiment of the present invention;

3 is a schematic structural diagram of a possible low-power receiver provided by an embodiment of the present invention;

4 is a schematic flowchart of a data communication method provided by an embodiment of the present invention;

5 is a schematic flowchart of another data communication method provided by an embodiment of the present invention;

6 is a single-site wake-up process provided by an embodiment of the present invention;

7 is a multi-site wake-up process provided by an embodiment of the present invention;

8 is another multi-site wake-up process provided by an embodiment of the present invention;

9 is a schematic diagram of a frame structure of a wake-up frame provided by an embodiment of the present invention;

10 is a schematic structural diagram of another wake-up frame provided by an embodiment of the present invention;

11a is a multi-group site information structure provided by an embodiment of the present invention;

11b is a single-group site information structure provided by an embodiment of the present invention;

11c is a single-site information structure provided by an embodiment of the present invention;

11d is a multi-site information structure provided by an embodiment of the present invention;

12 is a schematic diagram of a frame structure of another wake-up frame provided by an embodiment of the present invention;

13 is a schematic structural diagram of an apparatus for transmitting wake-up frames in a wireless local area network according to an embodiment of the present invention;

14 is a schematic structural diagram of another apparatus for transmitting a wake-up frame in a wireless local area network provided by an embodiment of the present invention;

15 is a schematic structural diagram of another apparatus for transmitting a wake-up frame in a wireless local area network provided by an embodiment of the present invention;

FIG. 16 is a schematic structural diagram of another apparatus for transmitting a wake-up frame in a wireless local area network provided by an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The embodiments of the present invention may be applied to a wireless local area network (Wireless Local Area Network, WLAN). Currently, the standard adopted by the WLAN is the IEEE (English: Institute of Electrical and Electronics Engineers, Chinese: Institute of Electrical and Electronics Engineers) 802.11 series. A WLAN may include multiple basic service sets (BSS), the network nodes in the basic service set are sites, and the sites include an access point type site (Access Point, AP) and a non-access point type site (English: None Access Point Station, referred to as the site for short). : Non-AP STA), each basic service set may include one AP and multiple Non-AP STAs associated with the AP.

Access point type sites, also known as wireless access points or hotspots, etc. APs are access points for mobile users to access wired networks. They are mainly deployed in homes, buildings, and campuses, with a typical coverage radius ranging from tens of meters to hundreds of meters. Of course, they can also be deployed outdoors. AP is equivalent to a bridge connecting wired network and wireless network. Its main function is to connect various wireless network clients together, and then connect the wireless network to Ethernet. Specifically, the AP may be a terminal device or a network device with a WiFi (English: Wireless Fidelity, Chinese: Wireless Fidelity) chip. Optionally, the AP may be a device supporting the 802.11ax standard, and further optionally, the AP may be a device supporting multiple WLAN standards such as 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

A non-access point station (English: None Access Point Station, referred to as: Non-AP STA) can be a wireless communication chip, a wireless sensor or a wireless communication terminal. For example: mobile phones that support WiFi communication, tablet computers that support WiFi communication, set-top boxes that support WiFi communication, smart TVs that support WiFi communication, smart wearable devices that support WiFi communication, in-vehicle communication that supports WiFi communication devices and computers that support WiFi communication. Optionally, the STA may support the 802.11ax standard, and further optionally, the station supports multiple WLAN standards such as 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

With the evolution of the wireless local area network WLAN standard, the IEEE802.11 working group is preparing for the research and formulation of the 802.11 standard with Low Power Wake Up Receiver (LP-WUR) as the core technology to reduce power consumption. The 802.11 standard has established SG (Study Group, study group) in IEEE in June 2016, and it is expected to establish TG (Task Group, working group) at the end of 2016, and the project is referred to as WUR.

In the WiFi network, a considerable part of the energy of the device is wasted in idle listening when there is no received signal. The current traditional 802.11 protocol (802.11b/a/g/n/ac, etc.) related solutions focus on optimizing the device sleep strategy. As shown in the first time axis of Figure 2, when a device (such as a workstation, STA, or Station) does not send and receive messages (such as in the No data phase), it will consume considerable energy if it continues to monitor the channel (ie, idle listening). Therefore, a sleep schedule (Sleep Schedule) is introduced in the second time axis of Figure 2, so that the STA can enter deep sleep (Deep Sleep) when no data is sent and received, so as to reduce the energy consumption of continuous idle listening. However, when the STA is in deep sleep, the AP cannot communicate with the STA, and can only transmit between the two after the STA wakes up, which may cause a certain delay (latency). In order to avoid the high delay caused by the sleep mechanism, the STA usually wakes up from time to time according to a certain sleep strategy to check whether there is data to receive, but this reduces the sleep efficiency of the STA (wakes up from time to time but no useful data needs to be sent and received, which is relatively long. Time sleep consumes more energy).

In addition to optimizing the sleep strategy, another technical way to reduce the energy waste of equipment idle listening is to use LP-WUR (here abbreviated as WUR). The core idea is that the receiver device (such as STA) includes the traditional 802.11 transceiver (802.11 main radio, 802.11 main transceiver module, WiFi main transceiver module), and adds a low-power wake-up receiver (WUR) part, as shown in Figure 3 As shown, when the 802.11 main transceiver module enters deep sleep, the low-power WUR wakes up and starts to work. If other devices (the AP on the left in the figure) need to communicate with the device with the WUR and 802.11 main transceiver module (the STA on the right in the figure), the AP first sends a WUR wake-up frame (WUP, Wake Up Packet) to the WUR , WUR wakes up the 802.11 main transceiver module of the STA after correctly receiving the WUP sent to itself, and then goes to sleep by itself, and the AP communicates with the awake 802.11 main transceiver module. When the 802.11 main transceiver module and the AP complete the communication, it will go to sleep, and at the same time the WUR wakes up and starts to listen to whether there is a WUP sent to itself, so as to wake up the 802.11 main transceiver module.

This technology uses low-power WUR to replace the 802.11 main transceiver module to listen to the channel when the medium is idle (here it is expected that the energy consumption of the WUR listening/receiving state is about 0.1-1% of the 802.11 main transceiver module, that is, less than 100uW), It can effectively reduce the waste of energy when the device is idle listening.

In order to realize low power consumption of WUR, its circuit structure and frame structure design (such as WUP) need to be relatively simple and low in complexity. For example, the WUR circuit structure may only include energy detection (energy detect) and radio frequency (RF, radiofrequency) parts, so some complex modulation methods cannot be demodulated. To this end, the WUP may adopt a simple binary amplitude keying (On-Off Keying, OOK) modulation method or a frequency shift keying (Frequency Shift Keying, FSK).

A possible WUP frame structure is shown in Figure 9. The front is the Legacy 802.11 preamble (traditional 802.11 pilot), which can be understood by other surrounding 802.11 devices (the surrounding 802.11 devices that hear the preamble will not preempt the channel for a period of time) ) to protect the subsequent part of the wake-up frame from being interfered by legacy 802.11 devices. The following is the payload part of WUP, which is modulated by OOK, which can only be understood by WUR. This part may include wake-up preamble (Wake-UpPreamble, used to identify WUP signals), MAC Header (including WUR ID, used to distinguish different WURs), frame body (frame carrier, can carry some other information), FCS (Frame Check) Sequence, frame check sequence, used to ensure that the data received is the same as the data sent). Here, the WUR ID information can be a partial or complete site association identifier, or the identifier of the WUR assigned by the AP to the site, or the receiving MAC address or part of the receiving MAC address of the site, or other information that can distinguish the WURs of different sites. In addition, the WUR payload part can be narrowband transmission, that is, different from the traditional 802.11 preamble transmitted based on 20M bandwidth as the basic unit, for example, the narrowband can be 1M, 2M, 4M, 8M, 16M and so on. The WUR payload portion can also be transmitted based on 20M bandwidth as the base unit.

Figure 10 shows another possible WUP frame structure, which includes 802.11 legacy preamble, wake-up preamble, signaling fields (used to carry some physical layer signaling, such as AP ID, WUR ID, modulation and coding indication, etc.) , MAC header, frame body, frame check sequence.

802.11ax introduces OFDMA technology to realize simultaneous point-to-multipoint transmission. The AP can simultaneously transmit different data signals to multiple sites on multiple orthogonal subchannels, that is, downlink OFDMA; in addition, multiple sites can also simultaneously transmit data signals to the AP through multiple orthogonal subchannels, that is, uplink OFDMA.

The embodiment of the present invention mainly designs the wake-up frame structure and content, so that it has the simultaneous wake-up function of multiple sites and meets the requirements of 802.11ax multi-site simultaneous transmission. In addition, the wake-up frame still has single-site wake-up capability. At the same time, the wake-up frame also includes the receiving operation mode indication or the receiving operation mode request indication of the main transceiver to be woken up (for example, the 802.11 main transceiver module).

Please refer to FIG. 1 , which is a system schematic diagram of a typical WLAN deployment scenario, including one AP and three STAs associated with the AP, and the AP can communicate with STA1 , STA2 and STA3 respectively. It should be noted that each STA may include the structure shown in FIG. 3 , that is, it includes both the 802.11 main transceiver module and the LP-WUR module. The LP-WUR module is used to receive the wake-up frame sent by the AP, and communicate with the 802.11 main transceiver module. wake.

In this embodiment of the present invention, the AP sends a wake-up frame to at least one station STA associated with the AP, for example, sends a wake-up frame to at least one STA among STA1, STA2, and STA3 in FIG. Receive parameters after the main transceiver module of a site is woken up from the sleep state, such as receiving mode indication, wake-up time indication, and so on. When the main transceiver module of the STA is woken up, it can communicate with the AP. It is worth noting that the present invention is not limited to the AP sending the wake-up frame to the non-AP STA, and the non-AP STA may also send the wake-up frame to the AP. The following embodiment takes the AP sending a wake-up frame to a non-AP STA as an example.

The following describes a method for transmitting a wake-up frame in a wireless local area network provided by an embodiment of the present invention with reference to FIG. 4 to FIG. 12 .

Please refer to FIG. 4 , which is a schematic flowchart of a method for transmitting a wake-up frame in a wireless local area network provided by an embodiment of the present invention. The embodiment of the present invention is described by taking the AP side of an access point as an example. As shown in the figure, the embodiment of the present invention The method for transmitting a wake-up frame in the wireless local area network includes steps S100-S101;

S100. Generate a wake-up frame, where the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a reception parameter of the at least one station, where the reception parameter is the The main transceiver module of the site is woken up from the sleep state to receive configuration parameters;

S101. Send the wake-up frame.

In this embodiment of the present invention, the AP generates a wake-up frame, where the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a reception parameter of the at least one station. The main transceiver module of the at least one site is in a dormant state, and the LP-WUR module of the at least one site receives a wake-up frame, and parses the first indication information and the second indication information in the wake-up frame.

Optionally, the receiving parameter may include a wake-up type, which includes sending a PS-Poll frame at a specified time or immediately after the station is woken up, Ack, the main link returns to the sleep state, the wake-up receiver returns to the sleep state, wake-up (no other operation), receive at least one beacon frame after waking up, wherein the beacon frame includes communication identification information (trafficindication message, TIM) or delivery communication identification information (delivery traffic indication message, DTIM).

Optionally, the receiving parameter may include time indication information for indicating that the main transceiver module is awakened, and the time indication information may include the time at which the main transceiver module is awakened and/or a preset identifier corresponding to the time at which the main transceiver module is awakened. , the time when the main transceiver module is woken up refers to the station being woken up at the specified time, for example, the specified time may be the time difference relative to the time when the beacon frame is sent. The preset identifier corresponding to the time when the main transceiver module is awakened can be a 1-bit indicator character, which is used to indicate whether the site is awakened immediately, or it can be a preset corresponding to the time when a special main transceiver module is awakened. ID, such as 0.

Further optionally, the receiving parameter may further include indication information of the time length of the main transceiver module being woken up, that is, the duration of the main transceiver module of the site being in the wake-up state.

Preferably, if the main transceiver module is woken up periodically, the receiving parameter may further include a wake-up time interval length during which the main transceiver module of the site is periodically woken up.

Optionally, the receiving parameter may further include the time when the main transceiver module returns to the sleep state and/or a preset identifier corresponding to the time when the main transceiver module returns to the sleep state. The time when the main transceiver module returns to the sleep state refers to the station returning to the sleep state at the specified time. For example, the specified time may be the time difference relative to the time when the beacon frame is sent. The preset identifier corresponding to the time when the main transceiver module returns to the sleep state can be a 1-bit indicator character, which is used to indicate whether the station is immediately returned to the sleep state, or it can be a special time for the main transceiver module to return to the sleep state. The corresponding preset flag, such as 0.

Further optionally, the receiving parameter may further include the time length indication information for the main transceiver module of the site to return to the dormant state, that is, the duration used to indicate that the main transceiver module of the site is in the dormant state.

Preferably, if the main transceiver module periodically changes to the sleep state, the receiving parameter may further include the length of the sleep time interval during which the main transceiver module of the site periodically returns to the sleep state.

Optionally, the reception parameter may further include reception mode indication information after the main transceiver module of the site is woken up from the sleep state. For example, the reception mode indication information may include at least one of the number of reception streams and the reception bandwidth.

Optionally, the receiving parameter may further include receiving mode request indication information after the main transceiver module of the site is woken up from the sleep state. After receiving the receiving mode request indication information, the station will report the receiving mode indication of the station to the AP after being woken up, including at least one of the number of received streams and the received bandwidth.

As an optional implementation manner, the wake-up frame includes public information and at least one group information, the above-mentioned first indication information includes identification information in each group information in the at least one group information, and the identification information in one group information uses In order to indicate at least two stations, as shown in FIG. 11a, the wake-up frame includes n pieces of group information, and each group information may include a group identifier, and the group identifier is used to identify the preset at least two stations. All sites are grouped, and one group includes at least two sites. Therefore, when indicating at least two sites in the group, the group identifier may be used for indication, or each group information may include at least two site identifiers. The at least two station identifiers are used to indicate at least two stations that need to be woken up. As shown in FIG. 11b, that is, the wake-up frame includes a common information and a group information, and the group information includes a group identifier or at least two station identifiers. The site identifier is the aforementioned WUR ID.

It should be noted that, generally, the reception parameters of at least two stations indicated by the identification information in one group information are the same, and the second indication information includes at least two stations indicated by the identification information in each group information in the at least one group information. The reception parameters and/or indication characters of the two stations means that each group information includes the reception parameters and/or indication characters of at least two stations indicated by the identification information in the group information. The indicator character is used to indicate whether the receiving parameters of the at least two stations indicated by the group information are the same as the receiving parameters of the stations indicated by the group information preceding the group information. If the indicated parameters are the same, it may not be required in the group information Carrying the receiving parameter, usually the indicator character in the first group of information is set to be different by default.

As shown in Figure 11a, group information 1 indicates that the characters are different by default. If the reception parameters of at least two sites indicated by the identification information in group information 2 are the same as the reception parameters of at least two sites indicated by the identification information in group information 1, Then, the receiving parameter can be omitted in the group information 2, and only the indication character can be used to represent it. If the indicator character is used to represent, the length of each group information may not be fixed.

Optionally, if the length of each group information is a fixed length, with the exception of the last group, a group information contains a fixed number of site IDs or group IDs, and each group information contains at least two sites corresponding to the group information. receive parameters.

As another optional implementation manner, the wake-up frame includes public information and at least one site information, the above-mentioned first indication information includes a site identifier in each site information in the at least one site information, and one site information includes a Site ID, which is used to indicate a wake-up site.

As shown in Figure 11c, the wake-up frame includes public information and a site information, that is, a single-site wake-up. The site information includes both the site ID of the wake-up site, and the site ID can be a WUR ID or a special WUR ID, the WUR ID is used for broadcasting, and is used to indicate that the wake-up frame is for all stations, and also includes the receiving parameters after the main transceiver module of the station is woken up, that is, the above-mentioned second indication information. If the wake-up frame in Fig. 11c is a MAC frame and includes the receiving address, the station identifier in the station information can be omitted, and the public information and station information fields can be combined into one field. As shown in FIG. 11d , the wake-up frame includes public information and multiple site information, that is, multi-site wake-up is performed, and the above-mentioned second indication information includes the site received by the site identified by the site identifier in each site information in the multiple site information. parameters, that is, a site information includes a site's reception parameters.

Further optional, in order to be able to save overhead, if the reception parameters of the site identified by the site ID in a certain site information are the same as the reception parameters of the site identified by the site ID in the previous site information, a 1-bit indicator character can also be used. indication, thereby omitting the receiving parameter in the site information. For example, as shown in FIG. 11d , if the receiving parameters of the site indicated by the site ID in the site information 2 are the same as those of the site indicated by the site ID in the site information 1, the receiving parameters can be omitted in the site information 2.

Based on the above two optional implementation manners, there may be any one or more of four information structures (FIG. 11a, FIG. 11b, FIG. 11c, and FIG. 11d), and different information structures represent different frame structure types, The above public information may include frame structure type indication information, where the frame structure type indication information is used to indicate the frame structure type of the wake-up frame, for example, the frame structure type indication information uses two-bit characters.

If the frame structure type of the wake-up frame is a single-group information structure, the wake-up frame includes one of the group information (as shown in FIG. 11b ); if the frame structure type of the wake-up frame is a multi-group information structure, then The wake-up frame includes at least two pieces of the group information (as shown in Figure 11a); if the frame structure type of the wake-up frame is a single-site information structure, the wake-up frame includes one of the site information (as shown in Figure 11c ) If the frame structure type of the wake-up frame is a multi-site information structure; then if the wake-up frame includes at least two of the site information (as shown in FIG. 11d ).

Optionally, the above-mentioned public information may also include length information, which is used to indicate the end position of the wake-up frame. For example, the length information is used to indicate the length from the public information to the end of the frame, or after the wake-up preamble of the wake-up frame ( or the length from the start of the wake-up preamble) to the end of the frame, or if the wake-up frame is a Medium Access Control (MAC) frame, the length information can also be information such as the length from the MAC header to the end of the frame. The information is used to indicate the end of the wake-up frame to the receiving station. Optionally, if the length of the group information (or site information) is fixed, the length field may also be an indication of the number of group information (or site information).

Optionally, the above-mentioned public information may also include a WUP reply indication after wake-up, which is used to inform the station whether it can send a wake-up frame (such as a wake-up frame with confirmation function, etc.) to reply to the AP after being woken up.

Optionally, the above-mentioned public information may further include a timestamp.

As an optional implementation manner, the wake-up frame can be used to wake up at least one station, and can also be used to transmit a BSS information parameter, and the BSS information parameter can be the information parameter of the BSS where the main transceiver module of the station in the dormant state is located, It can also be the information parameters of the BSS where the LP-WUR of the dormant site is located. The BSS information parameters include timestamp, channel number, sub-channel difference, frequency band number, bandwidth, bandwidth center frequency, enhanced distributed channel access (enhanced distributed channel access) access, EDCA) parameter, beacon frame arrival time, at least one of beacon frame interval. The secondary channel difference refers to an indication of whether the secondary channel frequency is higher or lower than that of the primary channel. One embodiment is that the channel number is the primary channel number, and the broadband center frequency includes broadband center frequency 1 and broadband center frequency 2. Multiple wake-up receivers managed by the AP may operate on different channels, which may be narrowband. The wake-up frame used to wake up the station needs to be transmitted on the channel where the wake-up frame is located, and the wake-up frame used to transmit the BSS information parameters needs to be transmitted on multiple channels. The wake-up frame is transmitted on a channel (such as a narrowband channel). If the wake-up frame needs to include the information parameters of the BSS where the main transceiver module is located and the information parameters of the BSS where the LP-WUR is located, it needs to be distinguished by types or elements.

In this embodiment of the present invention, the frame type indication information is used to indicate the function of the wake-up frame. If the frame type indication information is the first identifier, the wake-up frame is used to wake up at least one station, and the wake-up frame includes at least one station to be woken up. The first indication information of the station and the second indication information used to indicate the reception parameters of the at least one station. Optionally, the wake-up frame may also include a BSS information parameter, which is used to inform the BSS where the master transceiver of the awakened station is located. Information parameter, or the latest BSS information parameter. If the frame type indication information is the second identifier, the wake-up frame is used to transmit the BSS information parameter, and the wake-up frame includes third indication information used to indicate the BSS information parameter.

When the AP sends a wake-up frame to a station, the wake-up frame also includes the maximum sleep time of the AP, which is used to help a non-associated station choose to associate with the AP when it receives the wake-up frame. For example, the station usually sends emergency services, but when the maximum sleep time sent by the AP is greater than its tolerance, the station does not select the AP for association.

When the WUP frame is shown in Figure 11c, it only contains single-site information. The wake-up type included in the reception parameter may also include the frame type mentioned above, that is, the first identifier is replaced with the wake-up type in the reception parameter.

The above wake-up frame may be a MAC frame or a physical (physical, PHY) frame, and the two frame structures are described below:

If the wake-up frame is a MAC frame, as shown in Figure 9, the structure of the wake-up frame may include 802.11 traditional preamble, wake-up preamble, MAC header, frame body, and frame check sequence (FCS), as shown in Figure 10. Another possible WUP frame structure includes 802.11 traditional preamble, wake-up preamble, signaling field (used to carry some physical layer signaling, such as AP ID, WUR ID, modulation and coding indication, etc.), MAC header, Frame body, frame check sequence. Among them, the 802.11 traditional preamble includes a short training field, a long training field, and a signaling field, which is used to prevent traditional WIFI stations from preempting the channel; the wake-up preamble is used to receive synchronization; the MAC header includes the above frame type indication information, sending address, The receiving address, etc.; the frame body carries specific control signaling, such as the receiving mode indication of the main transceiver module of the site.

The frame body of the MAC frame is described in detail below. The frame body includes a common field and at least one single-information field. Optionally, the above-mentioned public information may be carried by the public field, and the above-mentioned at least one group information or the above-mentioned at least one site information may be It is carried by at least one single information field of the frame body, one single information field carries one group information, or one single information field carries one site information. A group information includes a group identifier or at least two site identifiers, and reception parameters corresponding to the group identifier or the at least two site identifiers, and a site information includes a site identifier and a reception parameter corresponding to the site identifier.

Further optionally, the MAC header includes the above frame type indication information. If the frame type indication information indicates that the wake-up frame is used to indicate the BSS information parameter, the sending address in the MAC header is the address of the AP, the receiving address is the broadcast address, and the frame body is the address of the AP. contains only public fields, and the public information includes timestamps and other information, and optionally, the public information also includes length information.

If the frame type indication information indicates that the wake-up frame is used to wake up at least one station, the sending address in the MAC header is the AP address, the receiving address is the unicast address or the broadcast address, and the frame body contains a common field and a single information field. The public information carried by the public field includes timestamp, frame structure type indication information and length information. It should be noted that the frame structure type indication information is optional information.

Optionally, if the frame body is a single-site information structure, that is, the frame body includes one site information, the site information may not contain a site identifier, because the receiving address can identify the site at this time.

If the wake-up frame is a physical frame, as shown in FIG. 12 , the wake-up frame includes a traditional preamble, a wake-up preamble, and a first signaling field SIG1 and a second signaling field SIG2, where the SIG1 field is similar to the common one in the MAC frame. field, the SIG1 field carries public information, and further optionally, the SIG1 field also includes the identification of the AP, and the identification may be the AP's BSS identifier (BSS identifier, BSSID), partial BSSID, BSS color, and the like. The second signaling field SIG2 is used to carry the above-mentioned at least one group information or at least one site information. It should be noted that when the SIG1 field and the SIG2 field are single-site information structures, the site information contains a site identifier.

After the AP generates the wake-up frame, it sends the wake-up frame. As shown in Figure 6, the AP sends the wake-up frame to a single site. After the site receives the wake-up frame, it sends a PS poll frame to the AP to tell the AP that it has woken up, and then the AP returns Confirm Ack or send data directly to the site. Alternatively, the AP can also directly send the data frame to the station after the station is woken up, without waiting for the station to send the PS-Poll frame.

As shown in Figure 7, the AP sends a wake-up frame to multiple sites. After multiple sites receive the wake-up frame, the AP sends a trigger/trigger frame to the multiple sites. The trigger frame contains resource allocation scheduling information, and the multiple sites receive the wake-up frame. After triggering the frame information, according to the resource scheduling information, it replies PS-Poll frames on different orthogonal sub-channels through OFMDA technology, telling the AP that the main transceiver module of the site has been woken up.

As shown in Figure 8, after the AP sends the wake-up frame, after the main transceiver module of the site is woken up, the AP directly sends downlink OFDMA data to the multiple sites, and then the multiple sites reply with confirmation frames.

In this embodiment of the present invention, a wake-up frame is generated, where the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a reception parameter of the at least one station, where the reception parameter is a station The main transceiver module is woken up from the sleep state to receive configuration parameters and send the wake-up frame. Through the design of the wake-up frame, the wake-up of at least one station and the indication of the receiving parameters can be realized.

In addition, if the AP is equipped with a wake-up receiver, for the purpose of energy saving, the main transceiver of the AP will also sleep. Therefore, the embodiments mentioned in the present invention are also applicable to the non-AP station to wake up the AP, but the wake-up frame sent by the non-AP station does not include the BSS information parameter.

Please refer to FIG. 5 , which is a schematic flowchart of another method for transmitting a wake-up frame in a wireless local area network provided by an embodiment of the present invention. The embodiment of the present invention takes the site side as an example for illustration. As shown in the figure, the wireless local area network in the embodiment of the present invention The transmission method of the middle wake-up frame includes steps S200-S201;

S200. Receive a wake-up frame, where the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a reception parameter of the at least one station, where the reception parameter is the The main transceiver module of the site is woken up from the sleep state to receive configuration parameters;

S201: Determine whether a target site is a site to be woken up according to the first indication information, and if so, configure a reception parameter for a main transceiver module of the target site to wake up from a sleep state according to the second indication information.

In this embodiment of the present invention, the AP sends a wake-up frame, the target station may be any STA associated with the AP, and the target station receives the wake-up frame, where the wake-up frame includes first indication information for indicating at least one station to be woken up and a in the second indication information indicating the reception parameter of the at least one station, where the reception parameter is a reception configuration parameter for the main transceiver module of the station to wake up from the sleep state.

The target site determines whether the target site is a site to be woken up according to the first indication information, and the specific determination method may be: judging whether the site identification of the target site itself matches the site identification contained in the wake-up frame, and if the match is consistent, then determine the target site. If it is a site to be woken up, or the first indication information includes a group ID, it is judged whether the group ID to which the target site belongs matches the group ID in the wakeup frame, and if they match, it is determined that the target site is a site to be woken up. If it is determined that the target site is a site to be woken up, further configure reception parameters for the main transceiver module of the target site to wake up from the sleep state according to the reception parameters corresponding to the target site included in the second indication information.

Optionally, the receiving parameter includes time indication information used to indicate that the main transceiver module is woken up, and the time indication information includes the time when the main transceiver module is woken up or the time when the main transceiver module is woken up. The corresponding preset identifier.

Optionally, the receiving parameter further includes indication information of the length of time during which the main transceiver module is woken up.

Optionally, the receiving parameter further includes a wake-up time interval length during which the main transceiver module is periodically woken up.

Optionally, the receiving parameter includes the time when the main transceiver module returns to the sleep state.

Optionally, the receiving parameter further includes indication information of the length of time for the main transceiver module to return to the sleep state.

Optionally, the receiving parameter further includes a sleep time interval length during which the main transceiver module periodically returns to the sleep state.

Optionally, the receiving parameter includes receiving mode indication information after the main transceiver module is woken up from the dormant state;

Wherein, the receiving mode indication information includes at least one of the number of received streams and the received bandwidth.

It should be noted that, for the structure of the wake-up frame in this embodiment of the present invention, please refer to the description of the embodiment in FIG. 4 , and details are not described herein again.

In this embodiment of the present invention, a wake-up frame is generated, where the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a reception parameter of the at least one station, where the reception parameter is a station The main transceiver module is woken up from the sleep state to receive configuration parameters and send the wake-up frame. Through the design of the wake-up frame, the wake-up of at least one station and the indication of the receiving parameters can be realized.

The following describes the specific implementation of the apparatus for transmitting wake-up frames in the wireless local area network provided by the embodiments of the present invention with reference to FIG. 13 to FIG. 16 .

Please refer to FIG. 13 , which is a schematic structural diagram of an apparatus for transmitting wake-up frames in a wireless local area network according to an embodiment of the present invention. The apparatus for transmitting wake-up frames in wireless local area networks can be applied to an access point AP. As shown in FIG. 13 , this The apparatus for transmitting a wake-up frame in a wireless local area network according to the embodiment includes: a generating unit 100 and a transceiving unit 101 .

The generating unit 100 is configured to generate a wake-up frame, where the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a reception parameter of the at least one station, the receiving The parameter is the receiving configuration parameter that the main transceiver module of the site is woken up from the dormant state;

The transceiver unit 101 is configured to send the wake-up frame.

Optionally, the receiving parameter includes time indication information used to indicate that the main transceiver module is woken up, and the time indication information includes the time when the main transceiver module is woken up or the time when the main transceiver module is woken up. The corresponding preset identifier.

Optionally, the receiving parameter further includes indication information of the length of time during which the main transceiver module is woken up.

Optionally, the receiving parameter further includes a wake-up time interval length during which the main transceiver module is periodically woken up.

Optionally, the receiving parameter includes the time when the main transceiver module returns to the sleep state.

Optionally, the receiving parameter further includes indication information of the length of time for the main transceiver module to return to the sleep state.

Optionally, the receiving parameter further includes a sleep time interval length during which the main transceiver module periodically returns to the sleep state.

Optionally, the receiving parameter includes receiving mode indication information after the main transceiver module is woken up from the dormant state;

Wherein, the receiving mode indication information includes at least one of the number of received streams and the received bandwidth.

Further optionally, the wake-up frame includes public information and at least one group information, and the first indication information includes the identification information in each group information in the at least one group information, and the one in the group information. The identification information is used to indicate at least two sites, the identification information includes a group identification or at least two site identifications, and one of the group identifications corresponds to at least two preset sites; or,

The wake-up frame includes public information and at least one site information, the first indication information includes a site identifier in each of the at least one site information, and one piece of the site information includes one of the site identifiers.

Optionally, the reception parameters of the at least two sites indicated by the identification information in one of the group information are the same;

The second indication information includes reception parameters and/or indication characters of at least two stations indicated by the identification information in each group information in the at least one group information, and the indication characters are used to indicate the group Whether the reception parameters of the at least two stations indicated by the information are the same as the reception parameters of the stations indicated by the identification information in the group information preceding the group information.

Optionally, the second indication information includes a receiving parameter of a site identified by a site identifier of each site information in the at least one site information, and a piece of the site information includes a site identified by the site identifier in the site information. Receive parameters for the identified site.

Optionally, the common information includes frame structure type indication information, where the frame structure type indication information is used to indicate the frame structure type of the wake-up frame.

Optionally, if the frame structure type of the wake-up frame is a single-group information structure, the wake-up frame includes one of the group information;

If the frame structure type of the wake-up frame is a multi-group information structure, the wake-up frame includes at least two groups of information;

If the frame structure type of the wake-up frame is a single-site information structure, the wake-up frame includes one of the site information;

If the frame structure type of the wake-up frame is a multi-site information structure; if the wake-up frame includes at least two site information.

Optionally, the common information includes length information, where the length information is used to indicate an end position of the wake-up frame.

Optionally, the wake-up frame further includes frame type indication information;

The frame type indication information is a first identifier, and the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a reception parameter of the at least one station;

The frame type indication information is the second identifier, and the wake-up frame includes third indication information for indicating the BSS information parameter of the basic service set, and the BSS information parameter is the BSS where the main transceiver module of the station currently in the dormant state is located. Information parameters.

Optionally, the BSS information parameter includes at least one of timestamp, channel number, frequency band number, bandwidth center frequency, beacon frame arrival time, and beacon frame interval.

Optionally, the wake-up frame is a medium access control layer MAC frame or a physical PHY frame.

Optionally, the frame body of the MAC frame includes a common field and at least one single information field;

The common information is carried by the common field of the MAC frame, the at least one group information or the at least one site information is carried by the at least one single information field, and one group information or one site information corresponds to one of the Single information field.

Optionally, the PHY frame includes a first signaling field and a second signaling field;

The common information is carried by the first signaling field, and the at least one group information or the at least one site information is carried by the second signaling field.

It can be understood that, for the specific implementation of each unit in the above-mentioned apparatus for transmitting a wake-up frame in a wireless local area network, reference may be made to the relevant descriptions in the method embodiments.

Please refer to FIG. 14 , which is a schematic structural diagram of another apparatus for transmitting a wake-up frame in a wireless local area network provided by an embodiment of the present invention. The apparatus for transmitting a wake-up frame in the wireless local area network can be applied to an access point AP. The wake-up frame in the wireless local area network The transmission apparatus 1000 includes a processor 1010 , a memory 1020 and a transceiver 1030 . The access point to which the apparatus for transmitting the wake-up frame in the wireless local area network is applied may be the AP shown in FIG. 1 .

Specifically, the processor 1010 controls the operation of the apparatus 1000 for transmitting the wake-up frame in the wireless local area network. Memory 1020 may include read-only memory and random access memory and provides instructions and data to processor 1010, which may be a general purpose processor, digital signal processor, application specific integrated circuit, field programmable gate array, or other programmable logic device. A portion of memory 1020 may also include non-volatile row random access memory (NVRAM). The components of the wake-up frame transmission apparatus 1000 in the wireless local area network are coupled together through a bus 1040, wherein the bus system 1040 includes a power bus, a control bus and a status signal bus in addition to the data bus. However, for the sake of clarity, the various buses are labeled as bus system 1040 in the figure. It should be noted that the above description of the structure of the apparatus for transmitting wake-up frames in the wireless local area network can be applied to subsequent embodiments.

The processor 1010 is configured to generate a wake-up frame, where the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a receiving parameter of the at least one station, the receiving The parameter is the receiving configuration parameter that the main transceiver module of the site is woken up from the dormant state;

The transceiver 1030 is configured to send the wake-up frame.

Optionally, the receiving parameter includes time indication information used to indicate that the main transceiver module is woken up, and the time indication information includes the time when the main transceiver module is woken up or the time when the main transceiver module is woken up. The corresponding preset identifier.

Optionally, the receiving parameter further includes indication information of the length of time during which the main transceiver module is woken up.

Optionally, the receiving parameter further includes a wake-up time interval length during which the main transceiver module is periodically woken up.

Optionally, the receiving parameter includes the time when the main transceiver module returns to the sleep state.

Optionally, the receiving parameter further includes indication information of the length of time for the main transceiver module to return to the sleep state.

Optionally, the receiving parameter further includes a sleep time interval length during which the main transceiver module periodically returns to the sleep state.

Optionally, the receiving parameter includes receiving mode indication information after the main transceiver module is woken up from the dormant state;

Wherein, the receiving mode indication information includes at least one of the number of received streams and the received bandwidth.

Further optionally, the wake-up frame includes public information and at least one group information, and the first indication information includes the identification information in each group information in the at least one group information, and the one in the group information. The identification information is used to indicate at least two sites, the identification information includes a group identification or at least two site identifications, and one of the group identifications corresponds to at least two preset sites; or,

The wake-up frame includes public information and at least one site information, the first indication information includes a site identifier in each of the at least one site information, and one piece of the site information includes one of the site identifiers.

Optionally, the reception parameters of the at least two sites indicated by the identification information in one of the group information are the same;

The second indication information includes reception parameters and/or indication characters of at least two stations indicated by the identification information in each group information in the at least one group information, and the indication characters are used to indicate the group Whether the reception parameters of the at least two stations indicated by the information are the same as the reception parameters of the stations indicated by the identification information in the group information preceding the group information.

Optionally, the second indication information includes a receiving parameter of a site identified by a site identifier of each site information in the at least one site information, and a piece of the site information includes a site identified by the site identifier in the site information. Receive parameters for the identified site.

Optionally, the common information includes frame structure type indication information, where the frame structure type indication information is used to indicate the frame structure type of the wake-up frame.

Optionally, if the frame structure type of the wake-up frame is a single-group information structure, the wake-up frame includes one of the group information;

If the frame structure type of the wake-up frame is a multi-group information structure, the wake-up frame includes at least two groups of information;

If the frame structure type of the wake-up frame is a single-site information structure, the wake-up frame includes one of the site information;

If the frame structure type of the wake-up frame is a multi-site information structure; if the wake-up frame includes at least two site information.

Optionally, the common information includes length information, where the length information is used to indicate an end position of the wake-up frame.

Optionally, the wake-up frame further includes frame type indication information;

The frame type indication information is a first identifier, and the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a reception parameter of the at least one station;

The frame type indication information is the second identifier, and the wake-up frame includes third indication information for indicating the BSS information parameter of the basic service set, and the BSS information parameter is the BSS where the main transceiver module of the station currently in the dormant state is located. Information parameters.

Optionally, the BSS information parameter includes at least one of timestamp, channel number, frequency band number, bandwidth center frequency, beacon frame arrival time, and beacon frame interval.

Optionally, the wake-up frame is a medium access control layer MAC frame or a physical PHY frame.

Optionally, the frame body of the MAC frame includes a common field and at least one single information field;

The common information is carried by the common field of the MAC frame, the at least one group information or the at least one site information is carried by the at least one single information field, and one group information or one site information corresponds to one of the Single information field.

Optionally, the PHY frame includes a first signaling field and a second signaling field;

The common information is carried by the first signaling field, and the at least one group information or the at least one site information is carried by the second signaling field.

It can be understood that, for the specific implementation of each component in the above-mentioned apparatus for transmitting a wake-up frame in a wireless local area network, reference may be made to the relevant descriptions in the method embodiments.

Please refer to FIG. 15 , which is a schematic structural diagram of an apparatus for transmitting a wake-up frame in a wireless local area network provided by an embodiment of the present invention. The apparatus for transmitting a wake-up frame in a wireless local area network can be applied to a station STA. As shown in FIG. 15 , this embodiment The apparatus for transmitting wake-up frames in a wireless local area network includes: a transceiver unit 200 and a processing unit 201 .

The transceiver unit 200 is configured to receive a wake-up frame, where the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a reception parameter of the at least one station, the receiving The parameter is the receiving configuration parameter that the main transceiver module of the site is woken up from the dormant state;

The processing unit 201 is configured to determine whether the target site is a site to be woken up according to the first indication information, and if so, configure a reception parameter for the main transceiver module of the target site to wake up from a sleep state according to the second indication information .

Optionally, the wake-up frame further includes frame type indication information; the frame type indication information is a first identifier, the wake-up frame includes the first indication information and the second indication information; the frame type indication The information is a second identifier, and the wake-up frame includes third indication information for indicating a basic service set BSS information parameter, and the BSS information parameter is the information parameter of the BSS where the main transceiver module of the site currently in a dormant state is located;

After the target station receives the wake-up frame, it is also necessary to determine that the frame type indication information is the first identifier or the second identifier;

If the frame type indication information is the first identifier, it is determined whether the target station is a station to be woken up according to the first indication information.

It can be understood that, for the specific implementation of each unit in the above-mentioned apparatus for transmitting a wake-up frame in a wireless local area network, reference may be made to the relevant descriptions in the method embodiments.

Please refer to FIG. 16 , which is a schematic structural diagram of another apparatus for transmitting a wake-up frame in a wireless local area network provided by an embodiment of the present invention. The apparatus for transmitting a wake-up frame in the wireless local area network can be applied to a station STA, and the transmission apparatus for a wake-up frame in the wireless local area network The apparatus 2000 includes a processor 2010 , a memory 2020 and a transceiver 2030 . The station STA to which the apparatus for transmitting the wake-up frame in the wireless local area network is applied may be any STA shown in FIG. 1 .

Specifically, the processor 2010 controls the operation of the wake-up frame transmission apparatus 2000 in the wireless local area network. Memory 2020, which may include read-only memory and random access memory, provides instructions and data to processor 2010, which may be a general purpose processor, digital signal processor, application specific integrated circuit, field programmable gate array, or other programmable logic device. A portion of memory 2020 may also include non-volatile row random access memory (NVRAM). Various components of the wake-up frame transmission apparatus 2000 in the wireless local area network are coupled together through a bus 2040, wherein the bus system 2040 includes a power bus, a control bus and a status signal bus in addition to the data bus. However, for clarity of illustration, the various buses are labeled as bus system 2040 in the figure. It should be noted that the above description of the structure of the apparatus for transmitting wake-up frames in the wireless local area network can be applied to subsequent embodiments.

The transceiver 2030 is configured to receive a wake-up frame, where the wake-up frame includes first indication information for indicating at least one station to be woken up and second indication information for indicating a reception parameter of the at least one station, the receiving The parameter is the receiving configuration parameter that the main transceiver module of the site is woken up from the dormant state;

The processor 1010 is configured to determine whether the target site is a site to be woken up according to the first indication information, and if so, configure a reception parameter for the main transceiver module of the target site to wake up from a sleep state according to the second indication information .

Optionally, the wake-up frame further includes frame type indication information; the frame type indication information is a first identifier, the wake-up frame includes the first indication information and the second indication information; the frame type indication The information is a second identifier, and the wake-up frame includes third indication information for indicating a basic service set BSS information parameter, and the BSS information parameter is the information parameter of the BSS where the main transceiver module of the site currently in a dormant state is located;

After the target station receives the wake-up frame, it is also necessary to determine that the frame type indication information is the first identifier or the second identifier;

If the frame type indication information is the first identifier, it is determined whether the target station is a station to be woken up according to the first indication information.

It can be understood that, for the specific implementation of each component in the above-mentioned apparatus for transmitting a wake-up frame in a wireless local area network, reference may be made to the relevant descriptions in the method embodiments.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. During execution, the processes of the embodiments of the above-mentioned methods may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM) or the like.

The steps in the method of the embodiment of the present invention may be adjusted, combined and deleted in sequence according to actual needs.

The units in the terminal in the embodiment of the present invention may be combined, divided and deleted according to actual needs.

Components such as the microcontroller in the embodiment of the present invention may be implemented by a general-purpose integrated circuit, such as a CPU, or an application specific integrated circuit (Application Specific Integrated Circuit, ASIC).

The above disclosures are only preferred embodiments of the present invention, and of course, the scope of the rights of the present invention cannot be limited by this. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims (23)

1. A method for transmitting a wake-up frame in a wireless local area network, comprising: A wake-up frame is generated, the wake-up frame includes at least one group information or at least two site information, one group information is used to indicate at least two sites, and one site information indicates one site, and the group information or the site information includes the corresponding Receiving parameter or indication character, the receiving parameter is the receiving configuration parameter that the main transceiver module of the site is woken up from the dormant state, and the indication character is used to indicate the receiving parameter of the site indicated by the group of information and the information in the group Whether the receiving parameters of the site indicated by the previous group information are the same, or whether the indication character is used to indicate whether the receiving parameters of the site indicated by the site information are the same as the receiving parameters of the site indicated by the site information before the site information; Sending the wake-up frame, the wake-up frame is used for the wake-up receiver of the receiving end device to determine the main transceiver module to wake up the receiving end device according to the at least one group information or at least two site information; The wake-up receiver transfers to a sleep state by communicating through the awakened main transceiver module, wherein after the main transceiver module completes the communication, the main transceiver module transfers to a sleep state, and the wake-up receiver wakes up , and monitor whether there are other wake-up frames sent to the receiver device, and the power of the wake-up receiver is much smaller than that of the main transceiver module. 2 . The method according to claim 1 , wherein the receiving parameter includes time indication information for indicating that the main transceiver module is woken up, and the time indication information includes the time when the main transceiver module is woken up. 3 . Or a preset identifier corresponding to the time when the main transceiver module is woken up. 3 . The method of claim 2 , wherein the receiving parameter further comprises indication information of the length of time during which the main transceiver module is woken up. 4 . 4. The method according to claim 2 or 3, wherein the receiving parameter further comprises a wake-up time interval length during which the main transceiver module is periodically woken up. 5. The method according to claim 1, wherein the receiving parameter comprises time indication information for instructing the main transceiver module to return to the sleep state, the time indication information comprising the main transceiver module returning The time of the sleep state or a preset identifier corresponding to the time when the main transceiver module returns to the sleep state. 6 . The method of claim 5 , wherein the receiving parameter further comprises indication information of the length of time for the main transceiver module to return to the sleep state. 7 . 7. The method according to claim 5 or 6, wherein the receiving parameter further comprises a sleep time interval length during which the main transceiver module periodically returns to the sleep state. 8. The method of claim 1, wherein the receiving parameter comprises receiving mode indication information after the main transceiver module is woken up from the dormant state; Wherein, the receiving mode indication information includes at least one of the number of received streams and the received bandwidth. 9. The method of claim 1, wherein the wake-up frame further comprises public information; The group information also includes identification information, and the identification information in one of the group information is used to indicate at least two sites, the identification information includes a group identification or at least two site identifications, and one of the group identifications corresponds to a preset. of at least two sites; The site information includes a site identifier, and one piece of the site information includes one of the site identifiers. 10 . The method according to claim 9 , wherein the at least two stations indicated by the identification information in one piece of the group information have the same reception parameters. 11 . 11. The method of claim 9, wherein one piece of the site information includes a reception parameter of a site identified by the site identifier in the site information. 12. The method of claim 9, wherein the common information comprises frame structure type indication information, wherein the frame structure type indication information is used to indicate the frame structure type of the wake-up frame. 13. The method of claim 12, wherein If the frame structure type of the wake-up frame is a single-group information structure, the wake-up frame includes one of the group information; If the frame structure type of the wake-up frame is a multi-group information structure, the wake-up frame includes at least two groups of information; If the frame structure type of the wake-up frame is a single-site information structure, the wake-up frame includes one of the site information; If the frame structure type of the wake-up frame is a multi-site information structure; if the wake-up frame includes at least two site information. 14. The method of claim 9, wherein the common information comprises length information, and the length information is used to indicate an end position of the wake-up frame. 15. The method of claim 1, wherein the wake-up frame further comprises frame type indication information; The frame type indication information is a first identifier, and the wake-up frame includes at least one group information or at least two site information; The frame type indication information is the second identifier, and the wake-up frame includes third indication information for indicating the BSS information parameter of the basic service set, and the BSS information parameter is the BSS where the main transceiver module of the station currently in the dormant state is located. Information parameters. 16. The method of claim 15, wherein the BSS information parameters include timestamp, channel number, frequency band number, bandwidth center frequency, enhanced distributed channel access EDCA parameters, beacon frame arrival time, signal at least one of the frame intervals. The method according to any one of claims 9-14, wherein the wake-up frame is a medium access control layer MAC frame or a physical PHY frame. 18. The method of claim 17, wherein the frame body of the MAC frame includes a common field and at least one single information field; The common information is carried by the common field of the MAC frame, the at least one group information or the at least one site information is carried by the at least one single information field, and one group information or one site information corresponds to one of the Single information field. 19. The method of claim 17, wherein the PHY frame includes a first signaling field and a second signaling field; The common information is carried by the first signaling field, and the at least one group information or the at least one site information is carried by the second signaling field. 20. A method for transmitting a wake-up frame in a wireless local area network, characterized in that it is applied to a receiving end device, wherein the receiving end device comprises a main transceiver module and a wake-up receiver, and the power of the wake-up receiver is much smaller than that of the main transceiver module, the method includes: A wake-up frame is received by the wake-up receiver, the wake-up frame includes at least one group information or at least two station information, one group information is used to indicate at least two stations, one station information indicates one station, the group information or all The site information includes a corresponding reception parameter or an indicator character, the reception parameter is a reception configuration parameter that the main transceiver module of the site is woken up from a dormant state, and the indicator character is used to indicate the reception of the site indicated by the group of information. Whether the parameter is the same as the receiving parameter of the station indicated by the group information preceding the group information, or, the indication character is used to indicate that the receiving parameter of the station indicated by the station information is the same as the station indicated by the station information preceding the station information. Whether the receiving parameters are the same; The wake-up receiver determines whether the target site is a site to be woken up according to the at least one group information or at least two site information. The received parameters of the awakened state are communicated through the awakened main transceiver module, and the wake-up receiver enters the sleep state, wherein after the communication of the main transceiver module is completed, the main transceiver module enters the sleep state , the wake-up receiver wakes up and listens for other wake-up frames sent to the receiver device. 21. The method of claim 20, wherein the wake-up frame further comprises frame type indication information; the frame type indication information is a first identifier, and the wake-up frame comprises at least one group information or at least two site information; the frame type indication information is the second identifier, and the wake-up frame includes third indication information for indicating the BSS information parameter of the basic service set, the BSS information parameter is the main Information parameters of the BSS where the transceiver module is located; After receiving the wake-up frame, the method further includes: Judging that the frame type indication information is the first identifier or the second identifier; The determining whether the target site is a site to be awakened according to the at least one group information or at least two site information includes: If the frame type indication information is the first identifier, determine whether the target station is a station to be woken up according to the at least one group information or the at least two station information. 22. A device for transmitting wake-up frames in a wireless local area network, comprising a transceiver, a processor and a memory, The memory is used to store instructions, the processor is used to execute the instructions stored in the memory, so as to control the transceiver to receive and transmit signals, and when the processor executes the instructions stored in the memory, the device is used to complete A method as claimed in any one of claims 1 to 19. 23. A device for transmitting wake-up frames in a wireless local area network, comprising a transceiver, a processor and a memory, The memory is used to store instructions, the processor is used to execute the instructions stored in the memory, so as to control the transceiver to receive and transmit signals, and when the processor executes the instructions stored in the memory, the device is used to complete A method as claimed in any one of claims 20 to 21.

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