CN109309935B

CN109309935B - Communication method and device of wireless local area network, access point equipment and site equipment

Info

Publication number: CN109309935B
Application number: CN201710629616.9A
Authority: CN
Inventors: 董贤东
Original assignee: Meizu Technology Co Ltd
Current assignee: Meizu Technology Co Ltd
Priority date: 2017-07-28
Filing date: 2017-07-28
Publication date: 2022-08-02
Anticipated expiration: 2037-07-28
Also published as: CN109309935A

Abstract

The invention provides a communication method, a communication device, site equipment and access point equipment of a wireless local area network, wherein the communication method of the wireless local area network comprises the following steps: receiving a cached downlink data frame, wherein the cached downlink data frame comprises indication information; and when the specified position of the indication information is determined to be a first value, indicating the primary communication interface to enter a sleep mode, and indicating the secondary communication interface to enter a preset mode, wherein the preset mode is a periodic sleep mode or an awakening mode. By the technical scheme, the power consumption of the station equipment can be further reduced, and the frequency spectrum utilization rate and the data throughput are improved.

Description

Communication method and device of wireless local area network, access point equipment and site equipment

Technical Field

The present invention relates to the field of technologies, and in particular, to a communication method of a wireless local area network, a communication apparatus of a wireless local area network, an access point device, and a station device.

Background

In 2016, the IEEE (Institute of Electrical and Electronic Engineers) 802.11 established the next-generation wur (wake up receiver) group of Wi-Fi (Wireless Fidelity) technologies, namely the IEEE (Institute of Electrical and Electronic Engineers) 802.11ba, which is mainly applied to the internet of things and aims to save the power consumption of the devices as much as possible.

A wake-up message (wake-up) frame is defined in the IEEE 802.11ba standard, and the main purpose of the wake-up message frame is to wake up a primary communication interface of a communication device, that is, the communication device receives the wake-up frame through a secondary communication interface, and the power consumption required by the wake-up message frame is not more than 1mw, which is much less than the power consumption required by directly waking up the primary communication interface of the communication device, and is beneficial to saving the power consumption of the communication device.

In the related art, in the data interaction process based on the IEEE 802.11ba standard, the primary communication interface of the station device supports a periodic sleep mode, and once the secondary communication interface of the station device receives the wakeup message frame, the primary communication interface is immediately waken up to receive downlink cache data.

In order to further reduce the power consumption of the communication device, the secondary communication interface may be configured to support a periodic sleep mode as well, so as to further reduce the power consumption of the station device, but how the secondary communication interface enters the sleep state or the awake state needs to be clearly defined.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

To this end, an object of the present invention is to provide a communication method of a wireless local area network.

Another object of the present invention is to provide a communication apparatus for a wireless local area network.

Another object of the present invention is to provide a station apparatus.

Another object of the present invention is to provide an access point device.

In order to achieve the above object, an aspect of the first aspect of the present invention provides a communication method for a wireless local area network, including: receiving a buffered downlink data frame, wherein the buffered downlink data frame comprises indication information; and when the specified position of the indication information is determined to be a first value, indicating the primary communication interface to enter a sleep mode, and indicating the secondary communication interface to enter a preset mode, wherein the preset mode is a periodic sleep mode or an awakening mode.

In the technical scheme, the communication states of the primary communication interface and the secondary communication interface are explicitly indicated by encapsulating the indication information in the buffered downlink data frame, for example, when a designated bit of the indication information is set to a first value when the buffered downlink data frame of the last frame is sent, the primary communication interface is indicated to enter a sleep mode, and the secondary communication interface is indicated to enter a periodic sleep mode or an awake mode, wherein a preset mode entered by the secondary communication interface depends on an operating mode supported by the secondary communication interface.

Specifically, if the secondary communication interface supports the periodic sleep mode, after the last frame of downlink buffer data frame is acquired, the secondary communication interface and the primary communication interface may simultaneously enter the sleep state, whereas if the secondary communication interface does not support the periodic sleep mode, the secondary communication interface must enter (or maintain) the wake-up mode to wait for receiving the wake-up message frame in real time, and the station device operates in the sleep mode as shown in table 1 below.

TABLE 1

Wherein the first value is typically set to "1".

In the foregoing technical solution, preferably, before receiving the buffered downlink data frame, the method further includes: generating a management message frame, wherein the management message frame comprises communication state indication information; sending a management message frame to the access point device to request association with the access point device; the communication state indication information is used for identifying whether the secondary communication interface supports a periodic sleep mode or an awake mode.

In the technical scheme, the access point device is negotiated through a management message frame, that is, the access point device is informed that the secondary communication device supports a periodic sleep mode or an awake mode, so as to reduce occurrence of data interaction collision and improve spectrum utilization, for example, the access point device determines that the secondary communication device supports the periodic sleep mode, and does not send an awake message frame to the station device during a sleep period of the secondary communication device, and if the primary communication device is also in a sleep state, the access point device does not send any downlink message frame to the station device.

The station device and the access point device negotiate their sleep periods through the primary communication interface, and the communication of the primary and secondary communication interfaces may use the same communication spectrum resource or different communication spectrum resources.

In the foregoing technical solution, preferably, the indication information includes an end-of-service field, a power management field, and a more data field in an MAC frame header of the buffered downlink data frame, where the designated bit includes the end-of-service field and the power management field, and when the end-of-service field and the power management field are set to a first value and the more data field is set to a second value, the indication information indicates the primary communication interface to enter the sleep mode, and indicates the secondary communication interface to enter the periodic sleep mode.

In this technical solution, the end-of-service field, the power management field, and the more data fields in the MAC frame header of the buffered downlink data frame are set as the indication information, so as to respectively indicate the communication status of the secondary communication interface, for example, when the end-of-service field and the power management field are set as the first values, and the more data fields are set as the second values, the primary communication interface is indicated to enter the sleep mode, and the secondary communication interface is indicated to enter the periodic sleep mode.

Specifically, the first value may be set to "1", the second value may be set to "0", the Service end field is an EOSP (end of Service period) field, when the EOSP field is "1", the secondary communication interface is instructed to enter the periodic sleep mode after feeding back the ACK frame, the Power Management field is a Power Management (PM) field, when the PM field is "1", the primary communication interface of the station device is instructed to sleep, the More Data field is a More Data field, when the MD is "0", the station device is instructed to receive the last frame of buffered downlink Data frame, and the secondary communication device may enter the periodic sleep mode.

In the foregoing technical solution, preferably, the indication information includes an end-of-service field, a power management field, and more data fields in an MAC frame header of the buffered downlink data frame, where the designated bit includes the end-of-service field and the power management field, and when the end-of-service field, the power management field, and the more data fields are all set to a first value, the main communication interface is indicated to enter the sleep mode, and the secondary communication interface is indicated to enter the wake mode.

In this technical solution, the first value may be set to "1", that is, when the EOSP field, the PM field, and the MD field are all set to "1", the primary communication device is instructed to enter the sleep mode, but the station device determines that the received downlink data frame is not the last frame buffer according to the MD field, and therefore, controls the secondary communication interface to enter (or maintain) the sleep mode.

In the above technical solution, preferably, the method further includes: setting the awakening state of the main communication interface as non-enabled and/or setting the sleeping state of the main communication interface as enabled so as to control the main communication interface to enter the sleeping mode.

In the technical scheme, after the last frame of the buffered downlink data frame is received, the main communication interface is controlled to enter the sleep mode, so that the power consumption of the station equipment is effectively reduced, and the access point equipment does not send the control message frame and the downlink data frame when the main communication interface is in the sleep state, so that the data throughput and the spectrum utilization rate are improved.

In the above technical solution, preferably, the method further includes: if the secondary communication interface supports the periodic sleep mode, setting the periodic sleep state of the secondary communication interface as non-enabled so as to control the secondary communication interface to enter the periodic sleep mode; and if the secondary communication interface does not support the periodic sleep mode, setting the periodic sleep mode of the secondary communication interface as non-enabled so as to keep the secondary communication interface in the wake-up mode all the time.

In the technical scheme, the enable adopts an enable code identifier, the disable adopts a disable code identifier, the periodic sleep state or the sleep state adopts a doze code identifier, the wake code identifier is adopted in the wake state, and the station equipment triggers and executes the setting as shown in the following table 2 after receiving the last frame of buffered downlink data frame.

TABLE 2

In the technical solution of the second aspect of the present invention, a communication method of a wireless local area network includes: generating a last frame buffer downlink data frame, wherein the designated position of the indicating information contained in the last frame buffer downlink data frame is a first value; and sending the last frame of downlink data frame to the site equipment so as to instruct the site equipment to control the main communication interface to enter a sleep mode according to the instruction information and control the secondary communication interface to enter a preset mode, wherein the preset mode is a periodic sleep mode or a wakeup mode.

In the technical scheme, indication information is packaged in a buffered downlink data frame to clearly indicate the communication states of a main communication interface and a secondary communication interface, and particularly when a last frame of buffered downlink data frame is sent, a designated bit of the indication information is set to be a first value to indicate the main communication interface to enter a sleep mode and indicate the secondary communication interface to enter a periodic sleep mode or an awake mode, wherein a preset mode entered by the secondary communication interface depends on a working mode supported by the secondary communication interface.

TABLE 1

Wherein the first value is typically set to "1".

In the above technical solution, preferably, before generating the last frame buffer downlink data frame, the method further includes: receiving a management message frame, wherein the management message frame comprises communication state indication information; and determining whether the secondary communication interface supports the periodic sleep mode according to the communication state indication information.

In the foregoing technical solution, preferably, the indication information includes an end-of-service field, a power management field, and more data fields in a MAC frame header of the buffered downlink data frame, where the designated bit includes the end-of-service field and the power management field.

In the technical scheme, the communication state of the secondary communication interface can be respectively indicated by setting a service end field, a power management field and more data fields in an MAC frame header of a cached downlink data frame as indication information.

For example, the first value may be set to "1", the second value may be set to "0", the end-of-Service field is an EOSP (end of Service period) field, when the EOSP field is "1", the secondary communication interface is instructed to enter the periodic sleep mode after feeding back the ACK frame, the Power Management field is a Power Management (PM) field, when the PM field is "1", the primary communication interface of the station device is instructed to sleep, when the MD is "0", the More Data field is a More Data field, and when the MD is "1", the station device is instructed to receive the last frame to buffer the downlink Data frame, and the secondary communication device may enter the periodic sleep mode.

For another example, the first value may be set to "1", that is, when the EOSP field, the PM field, and the MD field are all set to "1", the primary communication device is instructed to enter the sleep mode, but since the station device determines that the received downlink data frame is not the last frame buffer according to the MD field, the secondary communication interface is controlled to enter (or maintain) the awake mode.

In the above technical solution, preferably, the method further includes: receiving a control message frame fed back by the station equipment responding to the last frame cache downlink data frame; and determining whether the station equipment enters a sleep mode according to the control message frame.

In the technical scheme, after determining to receive the last frame of the buffered downlink data frame, the station device sends a control message frame to the access point device so as to negotiate with the access point device to enter a sleep mode, and after determining to receive the control message frame, the access point device does not send the control message frame and the downlink data frame in a time period corresponding to the sleep mode, so that data throughput and spectrum utilization rate are improved.

The control message frame may be an ACK frame, and the access point device does not need to perform feedback acknowledgement on the ACK frame.

In the above technical solution, preferably, the method further includes: and if the power management field of the frame body of the analysis control message frame is a first value and the more data field of the frame body of the analysis control message frame is a second value, determining that the site equipment enters a sleep mode.

In this technical solution, the power management field is a first value, the first value is usually "1", which indicates that after a frame is transmitted, the station device adopts a power management mode (power saving mode), the more data fields are second values, and the second value is usually "0", which indicates that a non-buffered downlink data frame needs to be sent to the station device.

In the above technical solution, preferably, the management message frame includes at least one of a probe request message frame, an association request message frame, and an authentication request message frame.

In the technical scheme, the Probe Request message frame is a Probe Request frame, the association Request message frame is an Association Request frame, and the Authentication Request message frame is an Authentication Request frame.

In the technical solution of the third aspect of the present invention, a communication apparatus of a wireless local area network is further provided, including: a receiving unit, configured to receive a buffered downlink data frame, where the buffered downlink data frame includes indication information; and the control unit is used for indicating the main communication interface to enter a sleep mode and indicating the secondary communication interface to enter a preset mode when the specified position of the indication information is determined to be a first value, wherein the preset mode is a periodic sleep mode or an awakening mode.

TABLE 1

Wherein the first value is typically set to "1".

In the above technical solution, preferably, the method further includes: a generation unit configured to generate a management message frame, the management message frame including communication state indication information; a transmitting unit, configured to transmit a management message frame to an access point device to request association with the access point device; the communication state indication information is used for identifying whether the secondary communication interface supports a periodic sleep mode or an awake mode.

In the foregoing technical solution, preferably, the indication information includes an end-of-service field, a power management field, and more data fields in an MAC frame header of the buffered downlink data frame, where the designated bit includes the end-of-service field and the power management field, and when the end-of-service field and the power management field are set to a first value and the more data fields are set to a second value, the indication information indicates the primary communication interface to enter the sleep mode, and indicates the secondary communication interface to enter the periodic sleep mode.

In the above technical solution, preferably, the control unit is further configured to: setting the awakening state of the main communication interface as non-enabled and/or setting the sleeping state of the main communication interface as enabled so as to control the main communication interface to enter the sleeping mode.

In the above technical solution, preferably, the control unit is further configured to: if the secondary communication interface supports the periodic sleep mode, setting the periodic sleep state of the secondary communication interface as non-enabled so as to control the secondary communication interface to enter the periodic sleep mode; the control unit is further configured to: and if the secondary communication interface does not support the periodic sleep mode, setting the periodic sleep mode of the secondary communication interface as non-enabled so as to keep the secondary communication interface in the wake-up mode all the time.

TABLE 2

In a fourth aspect of the present invention, a communication apparatus for a wireless lan includes: the generating unit is used for generating a last frame cache downlink data frame, and the designated position of the indicating information contained in the last frame cache downlink data frame is a first value; and the sending unit is used for sending the last frame of downlink data frame to the site equipment so as to instruct the site equipment to control the main communication interface to enter a sleep mode according to the instruction information and control the secondary communication interface to enter a preset mode, wherein the preset mode is a periodic sleep mode or a wakeup mode.

TABLE 1

Wherein the first value is typically set to "1".

In the above technical solution, preferably, the method further includes: a first receiving unit, configured to receive a management message frame, where the management message frame includes communication status indication information; and the determining unit is used for determining whether the secondary communication interface supports the periodic sleep mode according to the communication state indication information.

In the above technical solution, preferably, the method further includes: a second receiving unit, configured to receive a control message frame fed back by the station device in response to the last frame of the buffered downlink data frame; the determination unit is further configured to: and determining whether the station equipment enters a sleep mode according to the control message frame.

In the foregoing technical solution, preferably, the determining unit is further configured to: and if the power management field of the frame body of the analysis control message frame is a first value and the more data field of the frame body of the analysis control message frame is a second value, determining that the site equipment enters a sleep mode.

In an embodiment of the fifth aspect of the present invention, a station device is further provided, which includes the communication apparatus of the wireless local area network according to any one of the above-mentioned embodiments.

In this technical solution, the station device includes the communication apparatus of the wireless local area network according to any one of the above technical solutions, so that all the beneficial effects of the communication apparatus of the wireless local area network according to any one of the above technical solutions are achieved, and are not described herein again.

In an embodiment of the sixth aspect of the present invention, an access point device is further provided, which includes the communication apparatus of the wireless local area network according to any one of the above-mentioned embodiments.

In this technical solution, the access point device includes the communication apparatus of the wireless local area network according to any one of the above technical solutions, so that all the beneficial effects of the communication apparatus of the wireless local area network according to any one of the above technical solutions are achieved, and are not described herein again.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic flow diagram of a communication method of a wireless local area network according to one embodiment of the invention;

fig. 2 shows a schematic flow diagram of a communication method of a wireless local area network according to another embodiment of the present invention;

fig. 3 shows a schematic block diagram of a communication device of a wireless local area network according to an embodiment of the present invention;

fig. 4 shows a schematic block diagram of a communication device of a wireless local area network according to another embodiment of the present invention;

FIG. 5 shows a schematic block diagram of a station apparatus according to one embodiment of the present invention;

fig. 6 shows a schematic block diagram of an access point device according to an embodiment of the invention;

FIG. 7 illustrates a data interaction diagram for a wireless local area network, according to an embodiment of the present invention;

fig. 8 shows a data interaction diagram of a wireless local area network according to another embodiment of the invention;

fig. 9 shows a data interaction diagram of a wireless local area network according to still another embodiment of the present invention.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Fig. 1 shows a schematic flow diagram of a communication method of a wireless local area network according to one embodiment of the present invention.

As shown in fig. 1, a communication method of a wireless local area network according to an embodiment of the present invention includes: step S102, receiving a buffer downlink data frame, wherein the buffer downlink data frame comprises indication information; step S104, when the indication position of the indication information is determined to be a first value, indicating the primary communication interface to enter a sleep mode, and indicating the secondary communication interface to enter a preset mode, wherein the preset mode is a periodic sleep mode or an awake mode.

TABLE 1

Wherein the first value is typically set to "1".

TABLE 2

Fig. 2 shows a schematic flow chart of a communication method of a wireless local area network according to another embodiment of the present invention.

As shown in fig. 2, a communication method of a wireless local area network according to another embodiment of the present invention includes: step S202, generating a last frame buffer downlink data frame, wherein the designated position of the indicating information contained in the last frame buffer downlink data frame is a first value; step S204, sending the last frame of downlink data frame to the station device, so as to instruct the station device to control the primary communication interface to enter the sleep mode according to the instruction information, and control the secondary communication interface to enter the preset mode, where the preset mode is a periodic sleep mode or a wake-up mode.

TABLE 1

Wherein the first value is typically set to "1".

Fig. 3 shows a schematic block diagram of a communication device of a wireless local area network according to an embodiment of the present invention.

As shown in fig. 3, a communication apparatus 300 of a wireless local area network according to an embodiment of the present invention includes: a receiving unit 302, configured to receive a buffered downlink data frame, where the buffered downlink data frame includes indication information; the control unit 304 is configured to, when it is determined that the specified position of the indication information is a first value, instruct the primary communication interface to enter a sleep mode, and instruct the secondary communication interface to enter a preset mode, where the preset mode is a periodic sleep mode or an awake mode.

In the technical scheme, the indication information is encapsulated in the buffered downlink data frame to explicitly indicate the communication states of the primary communication interface and the secondary communication interface, for example, when the designated bit of the indication information is set to a first value when the buffered downlink data frame of the last frame is sent, the primary communication interface is indicated to enter a sleep mode, and the secondary communication interface is indicated to enter a periodic sleep mode or a wake-up mode, wherein the preset mode entered by the secondary communication interface depends on the working mode supported by the secondary communication interface.

TABLE 1

Wherein the first value is typically set to "1".

In the above technical solution, preferably, the method further includes: a generating unit 306, configured to generate a management message frame, where the management message frame includes communication status indication information; a sending unit 308, configured to send a management message frame to the access point device to request to associate with the access point device; the communication state indication information is used for identifying whether the secondary communication interface supports a periodic sleep mode or an awake mode.

In this technical solution, the access point device is negotiated through the management message frame, that is, the access point device is informed that the secondary communication device supports the periodic sleep mode or the awake mode, so as to reduce the occurrence of data interaction collision and improve the spectrum utilization rate, for example, if the access point device determines that the secondary communication device supports the periodic sleep mode, the access point device does not send the awake message frame to the station device during the sleep period of the secondary communication device, and if the primary communication device is also in the sleep state, the access point device does not send any downlink message frame to the station device.

In the above technical solution, preferably, the control unit 304 is further configured to: setting the awakening state of the main communication interface as non-enabled and/or setting the sleeping state of the main communication interface as enabled so as to control the main communication interface to enter the sleeping mode.

In the above technical solution, preferably, the control unit 304 is further configured to: if the secondary communication interface supports the periodic sleep mode, setting the periodic sleep state of the secondary communication interface as non-enabled so as to control the secondary communication interface to enter the periodic sleep mode; the control unit 304 is further configured to: and if the secondary communication interface does not support the periodic sleep mode, setting the periodic sleep mode of the secondary communication interface as non-enabled so as to keep the secondary communication interface in the wake-up mode all the time.

TABLE 2

It is to be noted that the communication device 300 of the wireless lan may be compatible with or integrated with an access point device such as a mobile phone, a tablet, a music playing device, a navigation device, a router, etc. having a Wi-Fi communication module.

Specifically, the receiving unit 302 and the transmitting unit 308 may be an antenna, a carrier modulation module, and the like of the communication device 300 of the wireless lan, and the control unit 304 and the generating unit 306 may be a processor (CPU), a controller (MCU), an embedded micro-control chip, a baseband processor, and the like of the communication device 300 of the wireless lan.

Fig. 4 shows a schematic block diagram of a communication device of a wireless local area network according to another embodiment of the present invention.

As shown in fig. 4, a communication apparatus 400 of a wireless local area network according to another embodiment of the present invention includes: a generating unit 402, configured to generate a last frame buffered downlink data frame, where a specified position of indication information included in the last frame buffered downlink data frame is a first value; a sending unit 404, configured to send the last downlink data frame to the station device, so as to instruct the station device to control the primary communication interface to enter a sleep mode according to the instruction information, and control the secondary communication interface to enter a preset mode, where the preset mode is a periodic sleep mode or a wake-up mode.

TABLE 1

Wherein the first value is typically set to "1".

In the above technical solution, preferably, the method further includes: a first receiving unit 406, configured to receive a management message frame, where the management message frame includes communication status indication information; a determining unit 408, configured to determine whether the secondary communication interface supports the periodic sleep mode according to the communication status indication information.

In the above technical solution, preferably, the method further includes: a second receiving unit 410, configured to receive a control message frame fed back by the station device in response to the last frame buffer downlink data frame; the determination unit 408 is further configured to: and determining whether the station equipment enters a sleep mode according to the control message frame.

In the foregoing technical solution, preferably, the determining unit 408 is further configured to: and if the power management field of the frame body of the analysis control message frame is a first value and the more data field of the frame body of the analysis control message frame is a second value, determining that the site equipment enters a sleep mode.

It is to be noted that the communication device 400 of the wireless lan may be compatible with or integrated with a mobile phone, a tablet computer, a music playing device, a navigation device, a router and other station devices having a Wi-Fi communication module.

Specifically, the transmitting unit 404, the first receiving unit 406, and the second receiving unit 410 may be an antenna, a carrier modulation module, and the like of the communication apparatus 400 of the wireless lan, and the generating unit 402 and the determining unit 408 may be a processor (CPU), a controller (MCU), an embedded micro-control chip, a baseband processor, and the like of the communication apparatus 400 of the wireless lan.

Fig. 5 shows a schematic block diagram of a station device according to an embodiment of the invention.

As shown in fig. 5, a station apparatus 500 according to an embodiment of the present invention includes a communication device 300 of a wireless local area network according to any one of the above-mentioned technical solutions.

Fig. 6 shows a schematic block diagram of an access point device according to another embodiment of the invention.

As shown in fig. 6, an access point device 600 according to another embodiment of the present invention includes a communication apparatus 400 of a wireless local area network according to any of the above technical solutions.

In the following, referring to fig. 7, fig. 8 and fig. 9, a communication scheme of a wireless local area network according to an embodiment of the present invention is specifically described, where the basic service set includes a station device 500 and an access point device 600, where the station device 500 includes a primary communication interface and a secondary communication interface.

The first embodiment is as follows:

fig. 7 shows a data interaction diagram of a wireless local area network according to an embodiment of the invention.

As shown in fig. 7, the data interaction step of the wireless local area network according to one embodiment of the present invention includes: in a data interaction negotiation process (e.g., an association access process), the station device 500 sends a management message frame to the access point device 600, where the management message frame carries communication state indication information, and the communication state indication information is used to identify that a secondary communication interface of the station device 500 supports a periodic sleep mode or an awake mode.

The second embodiment:

fig. 8 is a diagram illustrating data interaction in a wireless lan according to another embodiment of the present invention.

As shown in fig. 8, the data interaction step of the wireless local area network according to another embodiment of the present invention includes: in the process of receiving the downlink Data frame, the station device 500 wakes up the primary communication interface and wakes up the secondary communication interface, when the access point device 600 sends the last frame of buffered downlink Data frame to the station device 500, the indication information includes that the EOSP field and the PM field are both set to "1", and the More Data field is set to "0", after the station device 500 feeds back the control frame (e.g., ACK frame) to the access point device 600, the primary communication interface sleeps, and the secondary communication interface sleeps periodically.

Example three:

fig. 9 shows a data interaction diagram of a wireless local area network according to another embodiment of the invention.

As shown in fig. 9, the data interaction step of the wireless lan according to another embodiment of the present invention includes: when the station device 500 sends the last frame of the buffered downlink Data frame to the station device 500, the indication information of the station device 500, including the EOSP field, the PM field, and the More Data field, is set to "1", and after the station device 500 feeds back a control frame (e.g., an ACK frame) to the station device 600, the primary communication interface sleeps and the secondary communication interface wakes up.

The technical scheme of the invention is described in detail in combination with the accompanying drawings, and the invention provides a communication scheme of a wireless local area network, which can further reduce the power consumption of station equipment and improve the spectrum utilization rate and the data throughput by packaging indication information in a buffered downlink data frame to clearly indicate the communication states of a primary communication interface and a secondary communication interface.

The steps in the method of the invention can be sequentially adjusted, combined and deleted according to actual needs.

The units in the device of the invention can be merged, divided and deleted according to actual needs.

It will be understood by those skilled in the art that all or part of the steps in the methods of the embodiments described above may be implemented by hardware instructions of a program, and the program may be stored in a computer-readable storage medium, where the storage medium includes Read-Only Memory (ROM), Random Access Memory (RAM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), One-time Programmable Read-Only Memory (OTPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Compact Disc Read-Only Memory (CD-ROM), or other Memory, such as a magnetic disk, or a combination thereof, A tape memory, or any other medium readable by a computer that can be used to carry or store data.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A communication method of a wireless local area network is applicable to station equipment, the station equipment comprises a primary communication interface and a secondary communication interface, and the communication method of the wireless local area network comprises the following steps:

receiving a cached downlink data frame, wherein the cached downlink data frame comprises indication information;

when the specified position of the indication information is determined to be a first value, indicating the main communication interface to enter a sleep mode, and indicating the secondary communication interface to enter a preset mode, wherein the preset mode is a periodic sleep mode or an awake mode;

the indication information comprises a service ending field, a power management field and more data fields in an MAC frame header of the cached downlink data frame, wherein the indication bit comprises the service ending field and the power management field;

when the end of service field and the power management field are set to the first value and the more data field is set to a second value, instructing the primary communication interface to enter the sleep mode and instructing the secondary communication interface to enter the periodic sleep mode;

when the end of service field, the power management field, and the more data field are all set to the first value, instructing the primary communication interface to enter the sleep mode, and instructing the secondary communication interface to enter the wake mode.

2. The communication method of the wireless local area network according to claim 1, further comprising, before receiving the buffered downlink data frame:

generating a management message frame, wherein the management message frame comprises communication state indication information;

sending the management message frame to an access point device to request to associate with the access point device;

wherein the communication status indication information is used to identify whether the secondary communication interface supports the periodic sleep mode.

3. The communication method of the wireless local area network according to claim 1, further comprising:

setting the awakening state of the main communication interface as non-enabled, and/or setting the sleeping state of the main communication interface as enabled, so as to control the main communication interface to enter the sleeping mode.

4. The communication method of the wireless local area network according to claim 1, further comprising:

if the secondary communication interface supports the periodic sleep mode, setting the periodic sleep state of the secondary communication interface as non-enabled so as to control the secondary communication interface to enter the periodic sleep mode;

and if the secondary communication interface does not support the periodic sleep mode, setting the periodic sleep mode of the secondary communication interface as non-enabled so as to keep the secondary communication interface in the wake-up mode all the time.

5. The communication method of the wireless local area network according to claim 2, wherein the management message frame comprises at least one of a probe request message frame, an association request message frame, and an authentication request message frame.

6. A communication method of a wireless local area network is applicable to an access point device, and is characterized in that the communication method of the wireless local area network comprises the following steps:

generating a last frame cache downlink data frame, wherein the designated position of the indicating information contained in the last frame cache downlink data frame is a first value;

sending the last frame buffer downlink data frame to the site equipment to instruct the site equipment to control the main communication interface to enter a sleep mode and control the secondary communication interface to enter a preset mode according to the indication information,

wherein the preset mode is a periodic sleep mode or an awake mode;

when the end of service field and the power management field are set to the first value and the more data field is set to a second value, instructing the primary communication interface of the site device to enter the sleep mode and instructing the secondary communication interface of the site device to enter the periodic sleep mode.

7. The method of claim 6, further comprising, before generating the last buffered downlink data frame:

receiving a management message frame, wherein the management message frame comprises communication state indication information;

and determining whether the secondary communication interface supports a periodic sleep mode according to the communication state indication information.

8. The communication method of the wireless local area network according to claim 7, further comprising:

receiving a control message frame fed back by the site equipment in response to the last frame cache downlink data frame;

and determining whether the station equipment enters a sleep mode according to the control message frame.

9. The communication method of the wireless local area network according to claim 8, further comprising:

and if the power management field of the frame body of the control message frame is analyzed to be the first value and the more data field of the frame body of the control message frame is analyzed to be the second value, determining that the site equipment enters a sleep mode.

10. The communication method of the wireless local area network according to any one of claims 7 to 9, wherein the management message frame comprises at least one of a probe request message frame, an association request message frame, and an authentication request message frame.

11. A communication apparatus of a wireless local area network, adapted to a station device, the station device including a primary communication interface and a secondary communication interface, the communication apparatus of the wireless local area network comprising:

a receiving unit, configured to receive a buffered downlink data frame, where the buffered downlink data frame includes indication information;

the control unit is used for indicating the main communication interface to enter a sleep mode and indicating the secondary communication interface to enter a preset mode when the specified position of the indication information is determined to be a first value, wherein the preset mode is a periodic sleep mode or an awake mode;

12. The communications apparatus of wireless local area network according to claim 11, further comprising:

a generation unit configured to generate a management message frame, where the management message frame includes communication status indication information;

a sending unit, configured to send the management message frame to an access point device to request to associate with the access point device;

13. The communication device of the wireless local area network according to claim 11,

the control unit is further configured to: setting the awakening state of the main communication interface as non-enabled, and/or setting the sleeping state of the main communication interface as enabled, so as to control the main communication interface to enter the sleeping mode.

14. The communication device of the wireless local area network according to claim 11,

the control unit is further configured to: if the secondary communication interface supports the periodic sleep mode, setting the periodic sleep state of the secondary communication interface as non-enabled so as to control the secondary communication interface to enter the periodic sleep mode;

the control unit is further configured to: and if the secondary communication interface does not support the periodic sleep mode, setting the periodic sleep mode of the secondary communication interface as non-enabled so as to keep the secondary communication interface in the wake-up mode all the time.

15. The communications apparatus of claim 12, wherein the management message frame comprises at least one of a probe request message frame, an association request message frame, and an authentication request message frame.

16. A communication apparatus of a wireless local area network, adapted to an access point device, the communication apparatus of the wireless local area network comprising:

the generating unit is used for generating a last frame cache downlink data frame, and the designated position of the indicating information contained in the last frame cache downlink data frame is a first value;

a sending unit, configured to send the last frame buffered downlink data frame to a site device, so as to instruct the site device to control a primary communication interface to enter a sleep mode according to the instruction information, and control a secondary communication interface to enter a preset mode,

wherein the preset mode is a periodic sleep mode or an awake mode;

17. The communications apparatus of wireless local area network according to claim 16, further comprising:

a first receiving unit, configured to receive a management message frame, where the management message frame includes communication status indication information;

a determining unit, configured to determine whether the secondary communication interface supports a periodic sleep mode according to the communication status indication information.

18. The communications apparatus of wireless local area network according to claim 17, further comprising:

a second receiving unit, configured to receive a control message frame fed back by the site device in response to the last frame of the buffered downlink data frame;

the determination unit is further configured to: and determining whether the station equipment enters a sleep mode according to the control message frame.

19. The communication device of the wireless local area network according to claim 18,

the determination unit is further configured to: and if the power management field of the frame body of the control message frame is analyzed to be the first value and the more data field of the frame body of the control message frame is analyzed to be the second value, determining that the site equipment enters a sleep mode.

20. The communication apparatus of wireless local area network according to any of claims 17 to 19, wherein the management message frame comprises at least one of a probe request message frame, an association request message frame, and an authentication request message frame.

21. A station apparatus, comprising:

communication device of a wireless local area network according to any of claims 11 to 15.

22. An access point device, comprising:

communication device of a wireless local area network according to any of claims 16 to 20.