CN109548151B

CN109548151B - Communication method and device of wireless local area network, access point equipment and site equipment

Info

Publication number: CN109548151B
Application number: CN201710867044.8A
Authority: CN
Inventors: 董贤东
Original assignee: Meizu Technology Co Ltd
Current assignee: Meizu Technology Co Ltd
Priority date: 2017-09-22
Filing date: 2017-09-22
Publication date: 2022-09-27
Anticipated expiration: 2037-09-22
Also published as: CN109548151A

Abstract

The invention provides a communication method and a device of a wireless local area network, access point equipment and site equipment, wherein the communication method of the wireless local area network comprises the following steps: after detecting that a secondary communication interface of associated first site equipment enters a periodic sleep mode, storing a service period which is allocated to the first site equipment to access a primary communication channel; generating a first management message frame, wherein the first management message comprises the re-release indication information of the service period; and broadcasting and sending a first management message frame to the second site equipment in the wake-up mode so as to indicate that the second site equipment accesses the main communication channel according to the re-release indication information of the service period. By the technical scheme, 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 communication network 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, so that the power consumption of the communication device is reduced compared with the case that the primary communication interface of the communication device is always in a wake-up state, that is, the primary communication interface is in a sleep state.

Specifically, a primary communication interface of the station device enters a sleep state in a WUR mode (a secondary communication interface is always in an awake state or in a periodic awake state), exits from a primary communication channel to reduce power consumption, and in order to further reduce the power consumption of the station device, the secondary communication interface of the station device may be set to support the periodic sleep mode.

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.

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

It is still another object of the present invention to provide an access point device.

It is yet another object of the present invention to provide a station apparatus.

In order to achieve the above object, according to a first aspect of the present invention, there is provided a communication method for a wireless local area network, including: after detecting that a secondary communication interface of associated first site equipment enters a periodic sleep mode, storing a service period which is allocated to the first site equipment to access a primary communication channel; generating a first management message frame, wherein the first management message comprises the re-release indication information of the service period; and broadcasting and sending a first management message frame to the second site equipment in the wake-up mode so as to indicate that the second site equipment accesses the main communication channel according to the re-release indication information of the service period.

In the technical scheme, after the secondary communication interface of the first station equipment enters the periodic sleep mode, the allocated service period is stored, and for the first station equipment, the service period is suspended, so that the service period is reallocated to the second station equipment in the wake mode, and the spectrum utilization rate and the data throughput can be effectively improved.

The service period refers to a period of time negotiated between a main communication interface of the station device and the access point device, and the station device performs data communication with the access point device through the main communication interface of the station device within the period of time.

Specifically, the first station device supports a WUR mode and the secondary communication interface supports a periodic sleep mode, and before the first station device enters the WUR mode, the first station device negotiates with the access point device to determine a service period, but after the first station device enters the WUR mode, the first station device cannot communicate in the service period, and the second station device is allocated the service period in an awake state.

It is to be noted that the second station device may be a station device or a group including a plurality of station devices, and the second station device may support the WUR mode or not, but the secondary communication interface of the second station device is in an awake state when the service period is reassigned.

The access point device may determine that the secondary communication interface enters a periodic sleep state according to the uplink message frame fed back by the first station device, for example, the first station device feeds back an acknowledgement message frame to the access point device after receiving the unicast buffered downlink data frame, and for example, the first station device sends a WUR request frame to the access point device, and the access point device feeds back a WUR response frame to instruct the first station device to enter a WUR mode, where the WUR mode is that the primary communication interface is in a sleep state and the secondary communication interface is in a periodic sleep state.

In addition, the primary communication interface and the secondary communication interface may be two transceiving ports of the same receiver, or two receivers separately provided.

In the foregoing technical solution, preferably, the communication method of the wireless local area network further includes: and when the generated first management message frame is a beacon frame, broadcasting the beacon frame to a main communication interface of the second site equipment which is associated and in an awakening mode so as to indicate the main communication interface to access a main communication channel according to the re-release indication information of the service period.

In the technical scheme, a first management message frame is set as a Beacon frame (Beacon frame) and is broadcast to a main communication interface of second station equipment, wherein the Beacon frame carries re-release indication information of a service period, that is, after determining that a secondary communication interface of first station equipment enters a periodic sleep state, access point equipment recovers the service period and reallocates the service period to the second station equipment in the wake state, so that the utilization rate of the service period is improved, and the waste of spectrum resources is reduced.

In any of the foregoing technical solutions, preferably, the service period includes a start time and an end time of accessing the primary communication channel, or the service period includes a start time and an access duration of accessing the primary communication channel, where the access duration of the service period is a duration carried in the non-contention period parameter and/or the contention period parameter.

In the technical scheme, the second station equipment is explicitly indicated to access the main communication channel at the starting time by setting the service period to include the starting time and the ending time of accessing the main communication channel, or the starting time and the access duration, so that the reliability of service period reallocation is improved.

In the CFP (Contention-Free Period), the CFP field of all downlink data frames is set to 32768 (that is, the 15 th bit is binary "1", and the remaining bits are binary "0"), because this value is large enough, it can prevent station devices that do not receive the Beacon frame from transmitting information for a long enough time, and thus will not interfere with the transmission and reception of information between CFPs.

In addition, within the indicated duration of the Contention Period parameter (CP), the station device may contend to Access the main communication Channel according to an EDCA (Enhanced Distributed Channel Access) mechanism, and then the second station may contend to Access the communication Channel according to the CP parameter broadcast by the Access point device.

In any one of the above technical solutions, preferably, the communication method of the wireless local area network further includes: after detecting that the second site equipment is accessed to the main communication channel, sending a cache data frame to the second site equipment; and receiving an acknowledgement message frame fed back by the second station equipment in response to the last frame buffer data frame.

In the technical scheme, after the second station equipment is detected to be accessed to the main communication channel, the unicast, multicast or broadcast cache data frame is sent to the second station equipment, so that the utilization rate of a service period is improved, the waste of frequency spectrum resources is reduced, in addition, the second station equipment is set to respond to the last cache data frame to feed back an acknowledgement message frame, so that the access point equipment can determine that the sending of the cache data frame is finished, and the reliability of communication interaction of the wireless local area network is improved.

In any of the above technical solutions, preferably, the communication method of the wireless local area network further includes: generating a second management message frame after detecting that the first site equipment enters an awakening mode and then sending an access request frame or receiving a confirmation message frame fed back by the second site equipment, wherein the second management message frame comprises recovery indication information of a service period; sending a second management message frame to the second site equipment to indicate the second site equipment to exit the main communication channel according to the recovery indication information of the service period; and generating and sending a third management message frame to the first site equipment, wherein the third management message frame comprises the recovery indication information of the service period so as to indicate the first site equipment to re-access the main communication channel according to the recovery indication information of the service period.

In the technical scheme, after the first station equipment is detected to enter the wakeup mode, a second management message frame is generated and sent to the second station equipment, the second station equipment is indicated to withdraw the service period in time, and the first station equipment is indicated to be re-accessed into the main communication channel by generating a third management message frame and sending the third management message frame to the first station equipment, so that the operations of synchronization, positioning, signaling interaction and the like with the access point equipment are recovered in the service period.

For example, the first station device entering the awake mode refers to that the primary communication interface and the secondary communication interface both enter the awake state, the first station device sends a polling request frame to the access point device after exiting the WUR mode to request to acquire the cached downlink data frame, the access point device may determine that the first station device enters the awake mode according to the acquired polling request frame, determine, by the access point device, a corresponding stored service period of the first station device, recycle the service period allocated to the second station device, and reallocate the service period to the first station device.

In the technical solution of the second aspect of the present invention, a communication method of a wireless local area network is further provided, including: receiving a first management message frame, wherein the first management message frame comprises the re-release indication information of a service period; and accessing the main communication channel according to the re-release indication information of the service period, wherein the first station equipment is allocated with the service period before entering the periodic sleep mode, and accesses the main communication channel according to the service period.

In this technical solution, the second station device may obtain a delayed service period in time by receiving the first management message frame, and the response speed is high, and specifically, after the secondary communication interface of the first station device enters the periodic sleep mode, the allocated service period is stored, and for the first station device, the service period is suspended, so that the service period is reallocated to the second station device in the wake-up mode, and the spectrum utilization rate and the data throughput can be effectively improved.

In any one of the above technical solutions, preferably, the communication method of the wireless local area network includes: when the generated first management message frame is a beacon frame, receiving the beacon frame by a main communication interface of the associated second station equipment in an awake mode; and accessing the main communication channel according to the service period indicated by the idle re-release indication information, wherein the service period comprises the starting time and the ending time of accessing the main communication channel, or the service period comprises the starting time and the access duration of accessing the main communication channel.

In this technical solution, the second station device may be a station device, or may be a packet including a plurality of station devices, and the second station device may support a WUR mode or does not support the WUR mode, but when a service period is reallocated, a secondary communication interface of the second station device is in an awake state.

In any one of the above technical solutions, preferably, the communication method of the wireless local area network includes: receiving a buffered data frame transmitted through a main communication channel after accessing the main communication channel; and after receiving the last frame of the buffered data frame, feeding back an acknowledgement message frame.

In the technical scheme, after the second station equipment is detected to be accessed to the main communication channel, the access point equipment sends the unicast, multicast or broadcast cache data frame to the second station equipment through the main communication channel, so that the utilization rate of a service period is improved, and the waste of frequency spectrum resources is reduced.

In any one of the above technical solutions, preferably, the communication method of the wireless local area network includes: after the confirmation message frame is fed back, receiving a second management message frame, wherein the second management message frame comprises the recovery indication information of the service period; and exiting the main communication channel according to the recycling indication information of the service period.

In the technical scheme, after the confirmation message frame is fed back, the second management message frame is received, the main communication channel exits according to the recovery indication information of the service period, and after the first site equipment is detected to enter the wakeup mode, the second management message frame is generated and sent to the second site equipment, so that the second site equipment is indicated to recover the service period in time, and the possibility of data collision is reduced.

In the technical solution of the third aspect of the present invention, a communication method of a wireless local area network is further provided, including: sending an access request frame after a wake-up mode is performed by a periodic sleep mode; receiving a third management message frame sent by the access point equipment in response to the access request frame, wherein the third management message frame comprises recovery indication information of a service period; and re-accessing the main communication channel according to the recovery indication information of the service period, wherein the first station equipment is allocated with the service period before entering the periodic sleep mode, and accesses the main communication channel according to the service period.

In the technical scheme, by generating the access request frame and receiving the third management message frame, since the service period is stored without reassigning a new service period, the access efficiency is greatly improved, the first station device is instructed to re-access the main communication channel, and operations such as synchronization, positioning and signaling interaction with the access point device are recovered in the service period.

In any of the foregoing technical solutions, preferably, the access duration of the service period is a duration carried in the non-contention period parameter and/or the contention period parameter.

In the technical scheme, a Contention-Free Period (CFP) parameter is carried in a Beacon frame, and in a CFP (Contention Free Period), CFP fields of all downlink data frames are set to 32768 (that is, 15 th bit is binary "1", and the remaining bits are binary "0"), because this value is large enough, station devices that do not receive a Beacon frame from which a CFP starts can be prevented from transmitting information for a long enough time, and from interfering with transmission and reception of information between CFPs.

In addition, within the indicated duration of the Contention Period parameter (CP), the station device may contend to Access the main communication Channel according to an EDCA (Enhanced Distributed Channel Access) mechanism, so that the second station may contend to Access the communication Channel according to the CP parameter broadcast by the Access point device.

In a fourth aspect of the present invention, a communication apparatus for a wireless local area network is further provided, including: the storage unit is used for storing a service period which is allocated to the first site equipment to access the primary communication channel after detecting that a secondary communication interface of the associated first site equipment enters a periodic sleep mode; a generating unit, configured to generate a first management message frame, where the first management message frame includes re-release indication information of a service period; and the sending unit is used for broadcasting and sending the first management message frame to the second site equipment in the wake-up mode so as to indicate that the second site equipment is accessed to the main communication channel according to the re-release indication information of the service period.

Specifically, the first station device supports a WUR mode and the secondary communication interface supports a periodic sleep mode, and before the first station device enters the WUR mode, the first station device negotiates with the access point device to determine a service period, but after the first station device enters the WUR mode, the first station device cannot communicate within the service period, and the second station device is allocated with the service period in an awake state.

The access point device may determine that the secondary communication interface enters the periodic sleep state according to the uplink message frame fed back by the first station device, for example, the first station device feeds back an acknowledgement message frame to the access point device after receiving the unicast buffered downlink data frame, and for example, the first station device sends a WUR request frame to the access point device, and the access point device feeds back a WUR response frame to indicate that the first station device enters the WUR mode, where the WUR mode is that the primary communication interface is in the sleep state and the secondary communication interface is in the periodic sleep state.

In any one of the above technical solutions, preferably, the sending unit is further configured to: and when the generated first management message frame is a beacon frame, broadcasting the beacon frame to a main communication interface of the second site equipment which is associated and in an awakening mode so as to indicate the main communication interface to access a main communication channel according to the re-release indication information of the service period.

In the technical scheme, a first management message frame is set as a Beacon frame (Beacon frame) and is broadcast to a main communication interface of second station equipment, wherein the Beacon frame carries re-release indication information of a service period, that is, after determining that a secondary communication interface of the first station equipment enters a periodic sleep state, the access point equipment recovers the service period and re-allocates the service period to the second station equipment in the wake state, so that the utilization rate of the service period is improved, and the waste of spectrum resources is reduced.

In any one of the above technical solutions, preferably, the sending unit is further configured to: after detecting that the second site equipment is accessed to the main communication channel, sending a cache data frame to the second site equipment; the communication device of the wireless local area network further includes: and the receiving unit is used for receiving the acknowledgement message frame fed back by the second station equipment in response to the last frame of the buffered data frame.

In any one of the foregoing technical solutions, preferably, the sending unit is further configured to: generating a second management message frame after detecting that the first site equipment enters an awakening mode and then sending an access request frame or receiving a confirmation message frame fed back by the second site equipment, wherein the second management message frame comprises recovery indication information of a service period; the sending unit is further configured to: sending a second management message frame to the second site equipment to indicate the second site equipment to exit the main communication channel according to the recovery indication information of the service period; the generation unit is further configured to: and generating and sending a third management message frame to the first site device, wherein the third management message frame comprises the recovery indication information of the service period so as to indicate the first site device to re-access the main communication channel according to the recovery indication information of the service period.

In a technical solution of the fifth aspect of the present invention, an access point device is further provided, including: the communication device of the wireless local area network according to the fourth aspect.

In the technical solution of the sixth aspect of the present invention, there is further provided a communication apparatus for a wireless local area network, including: a communication unit, configured to receive a first management message frame, where the first management message frame includes re-release indication information of a service period; the communication unit is further configured to: and accessing the main communication channel according to the re-release indication information of the service period, wherein the first station equipment is allocated with the service period before entering the periodic sleep mode, and accesses the main communication channel according to the service period.

In any one of the above technical solutions, preferably, the communication device of the wireless local area network includes: the generating unit is used for receiving the beacon frame by the main communication interface of the associated second station equipment in the wake-up mode when the generated first management message frame is the beacon frame; the communication unit is further configured to: and accessing the main communication channel according to the re-release indication information of the service period, wherein the service period comprises the starting time and the ending time of accessing the main communication channel, or the service period comprises the starting time and the access duration of accessing the main communication channel.

In this technical solution, the second station device may be a station device, or may be a packet including a plurality of station devices, and the second station device may support the WUR mode or does not support the WUR mode, but when being reallocated with a service period, a secondary communication interface of the second station device is in an awake state.

In any one of the above technical solutions, preferably, the communication unit is further configured to: receiving a buffered data frame transmitted through a main communication channel after accessing the main communication channel; the communication unit is further configured to: and after receiving the last frame of the buffered data frame, feeding back an acknowledgement message frame.

In any one of the above technical solutions, preferably, the communication unit is further configured to: after the confirmation message frame is fed back, receiving a second management message frame, wherein the second management message frame comprises the recovery indication information of the service period; the communication unit is further configured to: and exiting the main communication channel according to the recycling indication information of the service period.

In a seventh aspect of the present invention, a station device is further provided, including: the communication device of the wireless local area network according to the sixth aspect.

In an eighth aspect of the present invention, a communications apparatus for a wireless local area network is further provided, including: a communication unit for transmitting an access request frame after performing a wake-up mode by the periodic sleep mode; the communication unit is further configured to: receiving a third management message frame sent by the access point equipment in response to the access request frame, wherein the third management message frame comprises recovery indication information of a service period; the communication unit is further configured to: and re-accessing the main communication channel according to the recovery indication information of the service period, wherein the first site equipment is allocated with the service period before entering the periodic sleep mode, and accesses the main communication channel according to the service period.

In the technical solution, a Contention-Free Period parameter (CFP for short) is carried in a Beacon frame, and in a CFP (Contention Free Period), CFP fields of all downlink data frames are set to 32768 (that is, the 15 th bit is binary "1", and the remaining bits are binary "0"), because this value is large enough, station devices that do not receive a Beacon frame where a CFP starts cannot transmit information for a long enough time, and therefore cannot interfere with information transmission and reception between CFPs.

In a technical solution of the ninth aspect of the present invention, a station apparatus is further provided, including: the communication device of the wireless local area network according to the eighth aspect.

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 flow chart of a communication method of a wireless local area network according to another embodiment of the present invention;

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

fig. 5 shows a schematic block diagram of a communication device of a wireless local area network according to another embodiment of the present invention;

fig. 6 shows a schematic block diagram of a communication device of a wireless local area network according to another embodiment of the present invention;

fig. 7 shows a schematic block diagram of an access point device according to an embodiment of the invention;

FIG. 8 shows a schematic block diagram of a station apparatus according to an embodiment of the invention;

fig. 9 shows a schematic block diagram of a station apparatus according to another embodiment of the present invention;

fig. 10 is a diagram showing a manner of setting a service period of a communication scheme of a wireless local area network according to an embodiment of the present invention.

Detailed Description

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

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

Fig. 1 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, after detecting that a secondary communication interface of a related first site device enters a periodic sleep mode, storing a service period which is allocated to the first site device to access a primary communication channel; step S104, generating a first management message frame, wherein the first management message frame comprises the re-release indication information of the service period; step S106, a first management message frame is broadcast and sent to the second site equipment in the wake-up mode so as to indicate that the second site equipment is accessed to the main communication channel according to the re-release indication information of the service period.

In the above technical solution, preferably, the communication method of the wireless local area network further includes: and when the generated first management message frame is a beacon frame, broadcasting the beacon frame to a main communication interface of the second site equipment which is associated and in an awakening mode so as to indicate the main communication interface to access a main communication channel according to the re-release indication information of the service period.

In any one of the above technical solutions, preferably, the communication method of the wireless local area network further includes: after detecting that the second site equipment is accessed to the main communication channel, sending a cache data frame to the second site equipment; and receiving an acknowledgement message frame fed back by the second station equipment in response to the last frame cache data frame.

For example, the first station device entering the awake mode refers to that the primary communication interface and the secondary communication interface of the first station device both enter the awake state, and after exiting the WUR mode, the first station device sends a polling request frame to the access point device to request to acquire the buffered downlink data frame, so that the access point device may determine, according to the acquired polling request frame, that the first station device enters the awake mode, determine, by the access point device, a service period corresponding to the first station device, and recycle and reallocate the service period allocated to the second station device to the first station device.

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, receiving a first management message frame, wherein the first management message frame comprises the re-release indication information of the service period; step S204, accessing the primary communication channel according to the re-release indication information of the service period, where the first station device is allocated the service period before entering the periodic sleep mode, and accesses the primary communication channel according to the service period.

In any one of the above technical solutions, preferably, the communication method of the wireless local area network includes: when the generated first management message frame is a beacon frame, receiving the beacon frame by a main communication interface of the associated second station equipment in an awakening mode; and accessing the main communication channel according to the service period indicated by the idle re-release indication information, wherein the service period comprises the starting time and the ending time of accessing the main communication channel, or the service period comprises the starting time and the accessing duration of accessing the main communication channel.

Fig. 3 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. 3, a communication method of a wireless local area network according to another embodiment of the present invention includes: step S302, after the wake-up mode is performed by the periodic sleep mode, an access request frame is sent; step S304, receiving a third management message frame sent by the access point equipment in response to the access request frame, wherein the third management message frame comprises the recovery indication information of the service period; step S306, re-accessing the primary communication channel according to the restoration instruction information of the service period, where the first site device is allocated the service period before entering the periodic sleep mode, and accesses the primary communication channel according to the service period.

In the technical scheme, by generating the access request frame and receiving the third management message frame, since the service period is stored without reassigning a new service period, the access efficiency is greatly improved, the first station device is instructed to re-access the main communication channel, and the operations such as synchronization, positioning and signaling interaction with the access point device are recovered in the service period.

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

As shown in fig. 4, a communication apparatus 400 of a wireless local area network according to an embodiment of the present invention includes: a storage unit 402, configured to store a service period that has been allocated to the first site device to access the primary communication channel after detecting that a secondary communication interface of an associated first site device enters a periodic sleep mode; a generating unit 404, configured to generate a first management message frame, where the first management message frame includes information indicating re-release of a service period; a sending unit 406, configured to broadcast a first management message frame to the second site device in the wake-up mode, so as to instruct the second site device to access the main communication channel according to the re-release instruction information of the service period.

In any one of the above technical solutions, preferably, the sending unit 406 is further configured to: and when the generated first management message frame is a beacon frame, broadcasting the beacon frame to a main communication interface of the second site equipment which is associated and in an awakening mode so as to indicate the main communication interface to access a main communication channel according to the re-release indication information of the service period.

In any one of the above technical solutions, preferably, the sending unit 406 is further configured to: after detecting that the second site equipment accesses the main communication channel, sending a cache data frame to the second site equipment; the communication apparatus 400 of the wireless local area network further includes: a receiving unit 408, configured to receive an acknowledgement message frame fed back by the second station device in response to the last frame of the buffered data frame.

In any one of the above technical solutions, preferably, the sending unit 406 is further configured to: generating a second management message frame after detecting that the first site equipment enters an awakening mode and then sending an access request frame or receiving a confirmation message frame fed back by the second site equipment, wherein the second management message frame comprises recovery indication information of a service period; the sending unit 406 is further configured to: sending a second management message frame to the second site equipment to indicate the second site equipment to exit the main communication channel according to the recovery indication information of the service period; the generating unit 404 is further configured to: and generating and sending a third management message frame to the first site equipment, wherein the third management message frame comprises the recovery indication information of the service period so as to indicate the first site equipment to re-access the main communication channel according to the recovery indication information of the service period.

In the technical scheme, after the first station equipment is detected to enter the wakeup mode, a second management message frame is generated and sent to the second station equipment, the second station equipment is indicated to withdraw the service period in time, and the first station equipment is indicated to be re-accessed to the main communication channel by generating a third management message frame and sending the third management message frame to the first station equipment, so that the operations of synchronization, positioning, signaling interaction and the like with the access point equipment are recovered in the service period.

Fig. 5 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. 5, a communication apparatus 500 of a wireless local area network according to another embodiment of the present invention includes: a communication unit 502, configured to receive a first management message frame, where the first management message frame includes information indicating re-release of a service period; the communication unit 502 is further configured to: and accessing the main communication channel according to the re-release indication information of the service period, wherein the first station equipment is allocated with the service period before entering the periodic sleep mode, and accesses the main communication channel according to the service period.

In this technical solution, the second station device may obtain a delayed service period in time by receiving the first management message frame, and has a fast response speed, and specifically, store the allocated service period after the secondary communication interface of the first station device enters the periodic sleep mode, and for the first station device, the service period is suspended, so that the service period is reallocated to the second station device in the wake-up mode, and spectrum utilization and data throughput can be effectively improved.

In any of the above technical solutions, preferably, the communication apparatus 500 of the wireless local area network includes: a generating unit 504, configured to receive a beacon frame by a primary communication interface of a second station device that is associated and in an awake mode when the generated first management message frame is the beacon frame; the communication unit 502 is further configured to: and accessing the main communication channel according to the re-release indication information of the service period, wherein the service period comprises the starting time and the ending time of accessing the main communication channel, or the service period comprises the starting time and the access duration of accessing the main communication channel.

In any of the above technical solutions, preferably, the communication unit 502 is further configured to: receiving a buffered data frame transmitted through a main communication channel after accessing the main communication channel; the communication unit 502 is further configured to: and after receiving the last frame of the buffered data frame, feeding back an acknowledgement message frame.

In any of the above technical solutions, preferably, the communication unit 502 is further configured to: after the confirmation message frame is fed back, receiving a second management message frame, wherein the second management message frame comprises recovery indication information of the service period; the communication unit 502 is further configured to: and exiting the main communication channel according to the recycling indication information of the service period.

Fig. 6 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. 6, a communication apparatus 600 of a wireless local area network according to another embodiment of the present invention includes: a communication unit 602, configured to send an access request frame after performing an awake mode from a periodic sleep mode; the communication unit 602 is further configured to: receiving a third management message frame sent by the access point equipment in response to the access request frame, wherein the third management message frame comprises recovery indication information of a service period; the communication unit 602 is further configured to: and re-accessing the main communication channel according to the recovery indication information of the service period, wherein the first site equipment is allocated with the service period before entering the periodic sleep mode, and accesses the main communication channel according to the service period.

Fig. 7 shows a schematic block diagram of an access point device according to an embodiment of the invention.

As shown in fig. 7, an access point device 700 according to an embodiment of the present invention includes: such as the communication device 400 of the wireless local area network shown in fig. 4.

The communication device 400 of the wireless lan may be compatible with or integrated with an access point device such as a mobile phone, a tablet computer, a music playing device, a navigation device, and a router having a Wi-Fi communication module, the storage unit 402 may be an internal memory or an external memory of the communication device 400, the generation unit 404 may be a processor (CPU), a controller (MCU), an embedded micro-controller chip, a baseband processor, and the like of the communication device 400, and the sending unit 406 and the receiving unit 408 may be an antenna, a carrier modulation module, and the like of the communication device 400.

Fig. 8 shows a schematic block diagram of a station device according to an embodiment of the invention.

As shown in fig. 8, an access point device 800 according to an embodiment of the present invention includes: such as the communication device 500 of the wireless local area network shown in fig. 5.

The communication device 500 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, the generating unit 504 may be a processor (CPU), a controller (MCU), an embedded micro-control chip, a baseband processor, and the like of the communication device 500, and the communication unit 502 may be an antenna, a carrier modulation module, and the like of the communication device 500.

Fig. 9 shows a schematic block diagram of a station device according to another embodiment of the invention.

As shown in fig. 9, an access point device 900 according to an embodiment of the present invention includes: such as communication device 600 of a wireless local area network shown in fig. 6.

The communication device 600 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, and the communication unit 602 may be an antenna, a carrier modulation module and the like of the communication device 600.

As shown in fig. 10, the frame structure carrying a Service Period (Service Period) includes:

(1) the CFP Count indicates how many DTIMs are before the start of the next contention free period, and a CFP Count of 0 indicates that the current DTIM (typically 300ms) is the start of a contention free period.

(2) The CFP Period indicates the number of DTIMs during two contention-free periods, which is an integer multiple of the number of DTIMs.

(3) Cfp (max) Duration indicates the maximum length of the contention-free period in time units, and is used to set a network allocation vector at the beacon transmission time when the contention-free period starts, where the field includes 16-bit indication information, and writes a service period into lower 8 bits, for the second station device, the communication channel is not accessed according to the indication of the service period, and for the first station device, the communication channel is accessed according to the indication of the service period.

(4) CFP Dur remainingg indicates the maximum length in time units Remaining in the current contention-free period, and the value is set to 0 during the contention period. The CFP Dur remainingg value is taken from the beacon frame sent at the last TBTT, which is used by all other station devices during the contention free period to update their network allocation vectors.

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

The units in the device 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 an access point device, and is characterized in that the communication method of the wireless local area network comprises the following steps:

after detecting that a secondary communication interface of an associated first site device enters a periodic sleep mode, storing a service period allocated to the first site device for accessing a primary communication channel;

generating a first management message frame, wherein the first management message frame comprises the re-release indication information of the service period;

and broadcasting and sending the first management message frame to second site equipment in an awakening mode so as to indicate the second site equipment to access the main communication channel according to the re-release indication information of the service period.

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

and when the generated first management message frame is a beacon frame, broadcasting the beacon frame to a main communication interface of the second station equipment which is associated and in an awakening mode so as to indicate the main communication interface to access the main communication channel according to the re-release indication information of the service period.

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

the service period comprises a starting time and an ending time of accessing the main communication channel, or the service period comprises a starting time and an access duration of accessing the main communication channel,

the access duration of the service period is a duration carried in the non-contention period parameter and/or the contention period parameter.

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

after detecting that the second site equipment is accessed to the main communication channel, sending a cache data frame to the second site equipment;

and receiving an acknowledgement message frame fed back by the second station equipment in response to the last frame of the buffered data frame.

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

generating a second management message frame after detecting that the first site equipment enters an awake mode and then sending an access request frame or receiving a confirmation message frame fed back by the second site equipment, wherein the second management message frame comprises recovery indication information of a service period;

sending the second management message frame to the second site device to instruct the second site device to exit the primary communication channel according to the recovery instruction information of the service period;

and generating and sending a third management message frame to the first site device, where the third management message frame includes the recovery indication information of the service period to indicate that the first site device re-accesses the primary communication channel according to the recovery indication information of the service period.

6. A communication method of a wireless local area network, which is suitable for a second station device, wherein the communication method of the wireless local area network includes:

receiving a first management message frame, where the first management message includes re-release indication information of a service period, and the first management message frame is generated by an access point device after detecting that a secondary communication interface of an associated first station device enters a periodic sleep mode;

accessing a primary communication channel according to the re-release indication information of the service period,

the first station equipment is allocated with the service period before entering the periodic sleep mode, and accesses a main communication channel according to the service period.

7. The communication method of the wireless local area network according to claim 6, further comprising:

when the generated first management message frame is a beacon frame, receiving the beacon frame by a main communication interface of the associated second station equipment in an awake mode;

accessing the primary communication channel according to the service period indicated by the idle re-release indication information,

the service period comprises a starting time and an ending time of accessing the main communication channel, or the service period comprises a starting time and an access duration of accessing the main communication channel.

8. The communication method of the wireless local area network according to claim 6, further comprising:

receiving a buffered data frame transmitted through the primary communication channel after accessing the primary communication channel;

and after receiving the last frame of the cache data frame, feeding back an acknowledgement message frame.

9. The communication method of the wireless local area network according to claim 6, further comprising:

after the acknowledgement message frame is fed back, receiving a second management message frame, wherein the second management message frame comprises recovery indication information of a service period;

and exiting the main communication channel according to the recovery indication information of the service period.

10. A communication method of a wireless local area network is applicable to a first station device, and is characterized in that the communication method of the wireless local area network comprises the following steps:

after entering a wake-up mode from a periodic sleep mode, sending an access request frame;

receiving a third management message frame sent by the access point equipment in response to the access request frame, wherein the third management message frame comprises recovery indication information of a service period;

re-accessing the primary communication channel according to the restoration indication information of the service period,

the first station equipment is allocated with the service period before entering a periodic sleep mode, and accesses a main communication channel according to the service period;

after detecting that a secondary communication interface of the associated first site device enters the periodic sleep mode, the access point device stores the service period allocated to the first site device to access the primary communication channel, generates a first management message frame, where the first management message includes re-release indication information of the service period, and broadcasts and sends the first management message frame to a second site device in an awake mode to indicate that the second site device accesses the primary communication channel according to the re-release indication information of the service period.

11. The communication method of the wireless local area network according to any one of claims 6 to 10,

12. 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 storage unit is used for storing a service period which is allocated to the first site equipment to access a primary communication channel after detecting that a secondary communication interface of the associated first site equipment enters a periodic sleep mode;

a generating unit, configured to generate a first management message frame, where the first management message frame includes information indicating re-release of the service period;

a sending unit, configured to broadcast and send the first management message frame to a second site device in an awake mode, so as to instruct the second site device to access the main communication channel according to the re-release instruction information of the service period.

13. The communication device of the wireless local area network according to claim 12,

the sending unit is further configured to: and when the generated first management message frame is a beacon frame, broadcasting the beacon frame to a main communication interface of second station equipment which is associated and in an awakening mode so as to indicate the main communication interface to access the main communication channel according to the re-release indication information of the service period.

14. The communication device of the wireless local area network according to claim 12,

15. The communication device of the wireless local area network according to claim 12,

the sending unit is further configured to: after detecting that the second site equipment is accessed to the main communication channel, sending a cache data frame to the second site equipment;

the communication device of the wireless local area network further comprises:

a receiving unit, configured to receive an acknowledgement message frame fed back by the second station device in response to the last frame of the buffered data frame.

16. The communication device of the wireless local area network according to claim 12,

the generation unit is further configured to: generating a second management message frame after detecting that the first site equipment enters an awake mode and then sending an access request frame or receiving a confirmation message frame fed back by the second site equipment, wherein the second management message frame comprises recovery indication information of a service period;

the sending unit is further configured to: sending the second management message frame to the second site device to instruct the second site device to exit the primary communication channel according to the recovery instruction information of the service period;

the generating unit is further configured to: and generating and sending a third management message frame to the first site device, where the third management message frame includes the recovery indication information of the service period, so as to instruct the first site device to re-access the primary communication channel according to the recovery indication information of the service period.

17. A communication apparatus of a wireless local area network, adapted to a second station device, the communication apparatus of the wireless local area network comprising:

a communication unit, configured to receive a first management message frame, where the first management message frame includes re-release indication information of a service period, and the first management message frame is generated by an access point device after detecting that a secondary communication interface of an associated first station device enters a periodic sleep mode;

the communication unit is further configured to: accessing a primary communication channel according to the re-release indication information of the service period,

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

a generating unit, configured to receive, when the generated first management message frame is a beacon frame, the beacon frame by using a main communication interface of a second station device that is associated with the first station device and is in an awake mode;

the communication unit is further configured to: accessing the primary communication channel according to the re-release indication information of the service period,

19. The communication device of the wireless local area network according to claim 17,

the communication unit is further configured to: receiving a buffered data frame transmitted through the primary communication channel after accessing the primary communication channel;

the communication unit is further configured to: and after receiving the buffer data frame of the last frame, feeding back an acknowledgement message frame.

20. The communication device of the wireless local area network according to claim 17,

the communication unit is further configured to: after the acknowledgement message frame is fed back, receiving a second management message frame, wherein the second management message frame comprises recovery indication information of a service period;

the communication unit is further configured to: and exiting the main communication channel according to the recycling indication information of the service period.

21. A communication apparatus of a wireless local area network, adapted to a first station device, the communication apparatus of the wireless local area network comprising:

the communication unit is used for sending an access request frame after the periodic sleep mode enters the wake-up mode;

the communication unit is further configured to: receiving a third management message frame sent by the access point equipment in response to the access request frame, wherein the third management message frame comprises recovery indication information of a service period;

the communication unit is further configured to: re-accessing the primary communication channel according to the restoration indication information of the service period,

22. Communication device of a wireless local area network according to any of claims 17 to 21,

23. An access point device, comprising:

communication device of a wireless local area network according to any of claims 12 to 16.

24. A station apparatus, comprising:

communication device of a wireless local area network according to any of claims 17 to 22.