CN109922514B - Communication method and communication device, access point equipment and station equipment - Google Patents
Communication method and communication device, access point equipment and station equipment Download PDFInfo
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- CN109922514B CN109922514B CN201711326592.6A CN201711326592A CN109922514B CN 109922514 B CN109922514 B CN 109922514B CN 201711326592 A CN201711326592 A CN 201711326592A CN 109922514 B CN109922514 B CN 109922514B
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a communication method and a communication device of a wireless local area network, access point equipment and station equipment, wherein the communication method of the wireless local area network for the access point equipment comprises the following steps: when the station equipment enters a WUR mode and a service period determined by negotiation between the access point equipment and the station equipment is in a suspended state, generating a wakeup discovery message frame; setting a service period as a transmission period of a wakeup discovery message frame; and transmitting a wakeup discovery message frame according to the transmission period. The technical scheme of the invention is convenient to realize the reuse of the service period and can effectively improve the spectrum utilization rate, thereby meeting the requirements of IEEE802.11ba and leading the equipment to be more power-saving.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a communication method of a wireless local area network, a communication apparatus of a wireless local area network, an access point device, and a station device.
Background
In the year 2016, 7, IEEE (Institute of Electrical and Electronics Engineers) 802.11 established a research group WUR (wake Up receiver) of the next generation Wi-Fi (Wireless Fidelity) technology, namely IEEE802.11ba, which is mainly applied in the aspect of internet of things, in order to save the power consumption of devices as much as possible, and most mainly in order to make devices receiving wake-Up frames (wake-Up message frames, namely WUR message frames) save the power consumption of devices as much as possible, wherein the power consumption required by the devices to receive the wake-Up frames is not more than 1 mW.
When the device is in the WUR mode, the main communication interface of the device is in a sleep state, and the secondary communication interface of the device is in a continuous awake state or a periodic awake state, i.e., an active state, where the secondary communication interface is used to receive a WUR message frame sent by an AP (Access Point), so as to wake up the main communication interface to acquire a downlink data frame cached by the AP for the device.
In the standard formulation process, it is specified for a station device to be in both a PS (Power Saving) mode and a WUR mode, if the station device is in the WUR mode, that:
(1) if the main communication interface of the station equipment is in a dormant state, WURX (wake Up receiver) of the station equipment follows the scheduled work period between the access point equipment and the station equipment, and comprises WURX in a continuous awakening state.
(2) For primary communication channel pcr (primary Connectivity radio) scheduling of a station device (for example, a scheduling target Wake time twt (target Wake time) of a wireless Network management wnm (wireless Network management)), a Service Period (SP) currently negotiated between an access point device and the station device is suspended, specifically: if the service period is suspended, the station device does not need to be woken up during the service period; the parameters of the negotiated service period scheduled for the PCR of the station device are still retained by the access point device and the station device when the negotiated service period is suspended.
In addition, in the standard process, a new wake-up discovery message frame is defined for linking BSS (Basic Service Set) of the AP, but the parameters of the wake-up discovery message frame are not specifically described, so in order to enable better protocol compatibility and better spectrum utilization, the transmission time of the wake-up discovery message frame needs to be defined.
Disclosure of Invention
Based on at least one of the above technical problems, the present invention provides a new communication scheme for a wireless local area network, and by using a negotiated and suspended service period between an access point device and a station device as a transmission period of a wakeup discovery message frame, it is convenient to implement reuse the service period, and can effectively improve the spectrum utilization rate, thereby satisfying the requirements of ieee802.11ba and making the devices more power-saving.
In view of this, according to a first aspect of the present invention, a communication method of a wireless local area network is provided, where the communication method of the wireless local area network is used for an access point device, and the communication method of the wireless local area network includes: when the station equipment enters a WUR mode and a service period determined by negotiation between the access point equipment and the station equipment is in a suspended state, generating a wakeup discovery message frame; setting a service period as a transmission period of a wakeup discovery message frame; and transmitting a wakeup discovery message frame according to the transmission period.
In the technical scheme, when a station device which has established communication connection with an access point device enters a WUR mode and a service period negotiated with the access point device is suspended, the access point device may generate a wakeup discovery message frame for other station devices which do not establish communication connection with the access point device to listen to so as to link to a BSS thereof according to the wakeup discovery message frame, and further to implement reuse of the service period in the suspended state, the service period may be set as a transmission period of the wakeup discovery message frame, and the wakeup discovery message frame may be transmitted according to the set transmission period for other station devices which do not establish communication connection with the access point device to listen to and acquire, so that not only the spectrum utilization rate may be effectively improved, but also the definition of the transmission period of the wakeup discovery message frame is implemented, furthermore, the protocol can be better compatible, the requirements of IEEE802.11ba are met, the equipment is more power-saving, and meanwhile, other station equipment which is not initially connected with the access point equipment can more quickly discover the BSS, so that the equipment is more power-saving in the initial connection process.
In the foregoing technical solution, preferably, the sending period includes a preset duration in a non-contention period.
In the technical scheme, the sending Period of the wakeup discovery message frame may be specifically set in a non-Contention Period (i.e., CFP, context-Free Period), and may specifically be a preset time duration in the non-Contention Period, so that other station devices can know the non-Contention Period through the Beacon frame, and thus the data frame is not sent in the time duration, so that the occurrence of communication collision can be effectively avoided, and the communication interaction efficiency is improved.
In any of the above technical solutions, preferably, the step of setting the service period as a transmission period of the wakeup discovery message frame further includes: an information element format of the transmission period is set, and the information element format includes a broadcast start-stop time of the transmission period or a broadcast start time and a duration of the transmission period.
In the technical solution, when the parameter of the transmission period of the wakeup discovery message frame is set, the parameter definition of the wakeup discovery message frame is implemented, and when the suspended service period is set as the transmission period of the wakeup discovery message frame, a new Information Element format (i.e. Information Element) may be newly defined for the awake discovery message frame, and during the definition, on one hand, the broadcast start-stop time of the transmission period or the broadcast start time and duration of the transmission period may be set, that is, the transmission time period of the wakeup discovery message frame is explicitly defined.
In any of the above technical solutions, preferably, the communication method of the wireless local area network further includes: a broadcast transmission period; and when the station device exits the WUR mode and recovers the service period in the suspended state, setting a new transmission period of the wakeup discovery message frame to transmit the wakeup discovery message frame according to the new transmission period.
In this technical solution, in order to enable other station devices that do not establish a communication connection with the access point device to successfully listen to the wakeup discovery message frame sent by the access point device, a sending cycle of the wakeup discovery message frame may be broadcast, and specifically, the wakeup discovery message frame may be broadcast in the form of a Beacon frame (Beacon frame).
Further, if the station device that has established a communication connection with the access point device exits the WUR mode and recovers the service period in the suspended state, in order to ensure that other station devices that have not established a communication connection with the access point device can listen to the wakeup discovery message frame to acquire the BSS of the access point device, it is necessary to newly set a new transmission period for the wakeup discovery message frame, transmit the wakeup discovery message frame according to the new transmission period, and broadcast the new transmission period through the Beacon frame.
According to the second aspect of the present invention, there is further provided a communication apparatus of a wireless local area network, where the communication apparatus of the wireless local area network is used for an access point device, and the communication apparatus of the wireless local area network includes: the generating module is used for generating a wakeup discovery message frame when the station equipment enters a WUR mode and a service period determined by negotiation between the access point equipment and the station equipment is in a suspended state; the setting module is used for setting the service period as the sending period of the wake-up message frame; the first sending module is configured to send a wakeup discovery message frame according to a sending cycle.
In the technical scheme, when a station device which has established communication connection with an access point device enters a WUR mode and a service period negotiated with the access point device is suspended, the access point device may generate a wakeup discovery message frame for other station devices which do not establish communication connection with the access point device to listen to so as to link to a BSS thereof according to the wakeup discovery message frame, and further to implement reuse of the service period in the suspended state, the service period may be set as a transmission period of the wakeup discovery message frame, and the wakeup discovery message frame may be transmitted according to the set transmission period for other station devices which do not establish communication connection with the access point device to listen to and acquire, so that not only the spectrum utilization rate may be effectively improved, but also the definition of the transmission period of the wakeup discovery message frame is implemented, furthermore, the protocol can be better compatible, the requirements of IEEE802.11ba are met, the equipment is more power-saving, and meanwhile, other station equipment which is not initially connected with the access point equipment can more quickly discover the BSS, so that the equipment is more power-saving in the initial connection process.
In the foregoing technical solution, preferably, the sending period includes a preset duration in a non-contention period.
In the technical scheme, the sending period of the wakeup discovery message frame can be specifically set in the non-contention period, and specifically can be a preset time length in the non-contention period, so that other station devices can know the non-contention period through the Beacon frame conveniently, and thus the data frame is not sent in the time length, thereby effectively avoiding the occurrence of communication collision and improving the communication interaction efficiency.
In any of the above technical solutions, preferably, the setting module is further specifically configured to: an information element format of the transmission period is set, and the information element format includes a broadcast start-stop time of the transmission period or a broadcast start time and a duration of the transmission period.
In the technical scheme, when the parameter of the transmission period of the wakeup discovery message frame is set, the parameter definition of the wakeup discovery message frame is realized, a new information element format can be newly defined for the suspended service period when the suspended service period is set as the transmission period of the wakeup discovery message frame, and during definition, on one hand, the broadcast start-stop time of the transmission period or the broadcast start time and duration of the transmission period can be set, that is, the transmission time period of the wakeup discovery message frame is definitely defined.
In any of the above technical solutions, preferably, the communication apparatus of the wireless local area network further includes: a second sending module, configured to broadcast a sending period; and the setting module is further configured to: when the station device exits the WUR mode and recovers the service period in the suspended state, a new transmission period of the wakeup discovery message frame is set, so that the first transmission module transmits the wakeup discovery message frame according to the new transmission period.
In the technical solution, in order to enable other station devices that do not establish a communication connection with the access point device to successfully listen to the wakeup discovery message frame sent by the access point device, a sending cycle of the wakeup discovery message frame may be broadcast, and specifically, the wakeup discovery message frame may be broadcast in the form of a Beacon frame.
Further, if the station device that has established a communication connection with the access point device exits the WUR mode and recovers the service period in the suspended state, in order to ensure that other station devices that have not established a communication connection with the access point device can listen to the wakeup discovery message frame to acquire the BSS of the access point device, it is necessary to newly set a new transmission period for the wakeup discovery message frame, transmit the wakeup discovery message frame according to the new transmission period, and broadcast the new transmission period through the Beacon frame.
According to a third aspect of the present invention, an access point device is further provided, which includes the communication apparatus of the wireless local area network in any one of the above-mentioned technical solutions of the second aspect, so that the access point device has the same technical effects as the communication apparatus of the wireless local area network in any one of the above-mentioned technical solutions of the second aspect, and details are not repeated here.
According to the fourth aspect of the present invention, there is further provided a communication method of a wireless local area network, where the communication method of the wireless local area network is used for a station device, and the communication method of the wireless local area network includes: receiving a wakeup discovery message frame sent by access point equipment, wherein the sending period of the wakeup discovery message frame is a service period in a suspended state, and the service period is a service period in the suspended state determined by negotiation between other station equipment which establishes association with the access point equipment and is in a WUR mode and the access point equipment; and discovering the basic service set of the access point device according to the wake-up discovery message frame so that the station device establishes initial connection with the basic service set.
In the technical scheme, the station device may discover a basic service set of the access point device by listening to a wakeup discovery message frame sent by the access point device according to a set sending period, and further discover the basic service set of the access point device according to the wakeup discovery message frame, so as to complete a communication connection with the access point device by establishing an initial connection with the discovered basic service set, where a sending period of the wakeup discovery message frame may specifically be a negotiated and suspended service period between another station device that has established a communication connection with the access point device but enters a WUR mode and the access point device, so that while realizing effective definition of the sending period of the wakeup discovery message frame, reuse of the service period in a suspended state is also realized, thereby effectively improving spectrum utilization, satisfying requirements of ieee802.11ba, making the device more power saving, and being beneficial for other station devices that do not establish an initial connection with the access point device to discover the BSS more quickly, thereby facilitating power savings for the device during the initial connection.
The sending period of the wakeup discovery message frame may be set in a non-contention period, and specifically may be a preset time length in the non-contention period, so that other station devices can know the non-contention period through the Beacon frame conveniently, and thus, the data frame is not sent in the time length, and thus, the occurrence of communication collision can be effectively avoided.
Further, the station device may obtain the sending period of the wakeup discovery message frame by listening to the Beacon frame broadcast by the access point device.
In the above technical solution, preferably, when the other station device exits the WUR mode and recovers the service period in the suspended state, the receiving access point device receives the wake-up discovery message frame sent according to the new transmission period.
In the technical solution, when other station devices that have established a communication connection with the access device and suspend a service period negotiated with the access device exit the WUR mode, the suspended service period is recycled, and in order to ensure that a basic service set of the access device can be successfully discovered to establish a communication connection with the access device, a wake-up discovery message frame sent by the access device according to a set new sending period needs to be received, so as to further implement effective definition of a sending period of the wake-up discovery message frame.
Further, the station device may obtain a new transmission period of the wakeup discovery message frame by listening to the Beacon frame broadcast by the access point device.
According to the fifth aspect of the present invention, there is further provided a communication apparatus of a wireless local area network, where the communication apparatus of the wireless local area network is used for a station device, and the communication apparatus of the wireless local area network includes: a receiving module, configured to receive a wake-up discovery message frame sent by an access point device, where a sending period of the wake-up discovery message frame is a service period in a suspended state, and the service period is a service period in the suspended state determined by negotiation between other station devices and the access point device, where the other station devices and the access point device have established association with the access point device and are in a WUR mode; and the discovery module is used for discovering the basic service set of the access point equipment according to the wake-up discovery message frame so as to enable the station equipment to establish initial connection with the basic service set.
In the technical scheme, the station device may discover a basic service set of the access point device by listening to a wakeup discovery message frame sent by the access point device according to a set sending period, and further discover the basic service set of the access point device according to the wakeup discovery message frame, so as to complete a communication connection with the access point device by establishing an initial connection with the discovered basic service set, where a sending period of the wakeup discovery message frame may specifically be a negotiated and suspended service period between another station device that has established a communication connection with the access point device but enters a WUR mode and the access point device, so that while realizing effective definition of the sending period of the wakeup discovery message frame, reuse of the service period in a suspended state is also realized, thereby effectively improving spectrum utilization, satisfying requirements of ieee802.11ba, making the device more power saving, and being beneficial for other station devices that do not establish an initial connection with the access point device to discover the BSS more quickly, thereby facilitating power savings for the device during the initial connection.
The sending period of the wakeup discovery message frame may be set in a non-contention period, and specifically may be a preset time length in the non-contention period, so that other station devices can know the non-contention period through the Beacon frame conveniently, and thus, the data frame is not sent in the time length, and thus, the occurrence of communication collision can be effectively avoided.
Further, the station device may obtain the sending period of the wakeup discovery message frame by listening to the Beacon frame broadcast by the access point device.
In the foregoing technical solution, preferably, the receiving module is further configured to: and when the other station equipment exits the WUR mode and recovers the service period in the suspended state, receiving a wakeup discovery message frame sent by the access point equipment according to a new sending period.
In the technical solution, when other station devices that have established a communication connection with the access device and suspend a service period negotiated with the access device exit the WUR mode, the suspended service period is recycled, and in order to ensure that a basic service set of the access device can be successfully discovered to establish a communication connection with the access device, a wake-up discovery message frame sent by the access device according to a set new sending period needs to be received, so as to further implement effective definition of a sending period of the wake-up discovery message frame.
Further, the station device may obtain a new transmission period of the wakeup discovery message frame by listening to the Beacon frame broadcast by the access point device.
According to a sixth aspect of the present invention, a station device is further provided, which includes the communication apparatus of the wireless local area network in any one of the above-mentioned technical solutions of the fifth aspect, so that the station device has the same technical effects as the communication apparatus of the wireless local area network in any one of the above-mentioned technical solutions of the fifth aspect, and details thereof are omitted here.
According to the technical scheme, the negotiated and suspended service period between the access point equipment and the site equipment is used as the sending period of the wakeup discovery message frame, so that the service period can be reused conveniently, the spectrum utilization rate can be effectively improved, the requirements of IEEE802.11ba are met, and the equipment is more power-saving.
Drawings
Fig. 1 is a flowchart illustrating a communication method for a wireless lan of an access point device according to an embodiment of the present invention;
fig. 2 shows a schematic block diagram of a communication apparatus of a wireless local area network for an access point device according to an embodiment of the present invention;
fig. 3 shows a schematic block diagram of an access point device of an embodiment of the invention;
fig. 4 is a flowchart illustrating a communication method for a wireless local area network of a station device according to an embodiment of the present invention;
fig. 5 shows a schematic block diagram of a communication apparatus of a wireless local area network for a station device of an embodiment of the present invention;
fig. 6 shows a schematic block diagram of a station apparatus of an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Fig. 1 is a flowchart illustrating a communication method for a wireless local area network of an access point device according to an embodiment of the present invention.
As shown in fig. 1, the communication method for the wireless local area network of the access point device according to the embodiment of the present invention specifically includes the following steps:
And step 106, sending a wakeup discovery message frame according to the sending period.
In this embodiment, when a station device that has established a communication connection with an access point device enters a WUR mode and a service period negotiated with the access point device is suspended, the access point device may generate a wake-up discovery message frame for other station devices that have not established a communication connection with the access point device to listen to link to their BSS according to the wake-up discovery message frame, and further to implement reuse of the above-mentioned service period in the suspended state, the service period may be set as a transmission period of the wake-up discovery message frame, and the wake-up discovery message frame may be transmitted according to the set transmission period for other station devices that have not established a communication connection with the access point device to listen to, so that not only the spectrum utilization rate may be effectively improved, but also the definition of the transmission period of the wake-up discovery message frame is implemented, furthermore, the protocol can be better compatible, the requirements of IEEE802.11ba are met, the equipment is more power-saving, and meanwhile, other station equipment which is not initially connected with the access point equipment can more quickly discover the BSS, so that the equipment is more power-saving in the initial connection process.
Further, in the above embodiment, the transmission period includes a preset duration in the non-contention period.
In this embodiment, the sending period of the wakeup discovery message frame may be specifically set in the non-contention period, and may specifically be a preset time length in the non-contention period, so that other station devices can know the non-contention period through the beacon frame conveniently, and thus the data frame is not sent in the time length, thereby effectively avoiding the occurrence of communication collision and improving the communication interaction efficiency.
Further, step 104 in the foregoing embodiment specifically further includes: an information element format of the transmission period is set, and the information element format includes a broadcast start-stop time of the transmission period or a broadcast start time and a duration of the transmission period.
In this embodiment, when the parameter of the transmission period of the wakeup discovery message frame is set, the parameter definition of the wakeup discovery message frame is implemented, a new information element format may be newly defined for the suspended service period when the suspended service period is set as the transmission period of the wakeup discovery message frame, and during the definition, on one hand, the broadcast start/stop time of the transmission period or the broadcast start time and duration of the transmission period may be set, that is, the transmission time period of the wakeup discovery message frame is explicitly defined.
Further, in the above embodiment, the communication method of the wireless local area network further includes the following steps: a broadcast transmission period.
In this embodiment, in order to enable other station devices that do not establish a communication connection with the access point device to successfully listen to the wakeup discovery message frame sent by the access point device, a sending cycle of the wakeup discovery message frame may be broadcast, and specifically, the wakeup discovery message frame may be broadcast in the form of a Beacon frame.
Further, in the above embodiment, the communication method of the wireless local area network further includes: when the station device exits the WUR mode and recovers the service period in the suspended state, a new transmission period of the wakeup discovery message frame is set to transmit the wakeup discovery message frame according to the new transmission period.
In this embodiment, when a station device that has established a communication connection with an access point device exits the WUR mode and recovers a service period in a suspended state, in order to ensure that other station devices that have not established a communication connection with the access point device can listen to the wakeup discovery message frame to acquire the BSS of the access point device, it is necessary to newly set a new transmission period for the wakeup discovery message frame, transmit the wakeup discovery message frame according to the new transmission period, and broadcast the new transmission period through a Beacon frame.
The main implementation of the communication method shown in fig. 1 is an access point device in a network formed by an access point device and a station device, such as a router or a server with a Wi-Fi interface.
Fig. 2 shows a schematic block diagram of a communication apparatus of a wireless local area network for an access point device according to an embodiment of the present invention.
As shown in fig. 2, a communication apparatus 20 of a wireless local area network according to an embodiment of the present invention is used for an access point device, and the communication apparatus 20 of the wireless local area network includes: a generation module 202, a setting module 204 and a first sending module 206.
The generating module 202 is configured to generate a wakeup discovery message frame when the station device enters the WUR mode and a service period determined by negotiation between the access point device and the station device is in a suspended state; the setting module 204 is configured to set a service period as a sending period of the wakeup message frame; the first transmitting module 206 is configured to transmit the wakeup discovery message frame according to a transmission cycle.
In this embodiment, when a station device that has established a communication connection with an access point device enters a WUR mode and a service period negotiated with the access point device is suspended, the access point device may generate a wake-up discovery message frame for other station devices that have not established a communication connection with the access point device to listen to link to their BSS according to the wake-up discovery message frame, and further to implement reuse of the above-mentioned service period in the suspended state, the service period may be set as a transmission period of the wake-up discovery message frame, and the wake-up discovery message frame may be transmitted according to the set transmission period for other station devices that have not established a communication connection with the access point device to listen to, so that not only the spectrum utilization rate may be effectively improved, but also the definition of the transmission period of the wake-up discovery message frame is implemented, furthermore, the protocol can be better compatible, the requirements of IEEE802.11ba are met, the equipment is more power-saving, and meanwhile, other station equipment which is not initially connected with the access point equipment can more quickly discover the BSS, so that the equipment is more power-saving in the initial connection process.
Further, in the above embodiment, the transmission period includes a preset duration in the non-contention period.
In this embodiment, the sending period of the wakeup discovery message frame may be specifically set in the non-contention period, and may specifically be a preset time length in the non-contention period, so that other station devices can know the non-contention period through the Beacon frame conveniently, and thus the data frame is not sent in the time length, thereby effectively avoiding the occurrence of communication collision and improving the communication interaction efficiency.
Further, in the above embodiment, the setting module 204 is specifically further configured to: an information element format of the transmission period is set, and the information element format includes a broadcast start-stop time of the transmission period or a broadcast start time and a duration of the transmission period.
In this embodiment, when the parameter of the transmission period of the wakeup discovery message frame is set, the parameter definition of the wakeup discovery message frame is implemented, a new information element format may be newly defined for the suspended service period when the suspended service period is set as the transmission period of the wakeup discovery message frame, and during the definition, on one hand, the broadcast start/stop time of the transmission period or the broadcast start time and duration of the transmission period may be set, that is, the transmission time period of the wakeup discovery message frame is explicitly defined.
Further, in the above embodiment, the communication device 20 of the wireless local area network further includes: a second sending module 208, configured to broadcast the sending period.
In this embodiment, in order to enable other station devices that do not establish a communication connection with the access point device to successfully listen to the wakeup discovery message frame sent by the access point device, a sending cycle of the wakeup discovery message frame may be broadcast, and specifically, the wakeup discovery message frame may be broadcast in the form of a Beacon frame.
Further, in the above embodiment, the setting module 204 is further configured to: when the station device exits the WUR mode and recovers the service period in the suspended state, a new transmission period of the wakeup discovery message frame is set so that the first transmission module 206 transmits the wakeup discovery message frame according to the new transmission period.
In this embodiment, when a station device that has established a communication connection with an access point device exits the WUR mode and recovers a service period in a suspended state, in order to ensure that other station devices that have not established a communication connection with the access point device can listen to the wakeup discovery message frame to acquire the BSS of the access point device, it is necessary to newly set a new transmission period for the wakeup discovery message frame, transmit the wakeup discovery message frame according to the new transmission period, and broadcast the new transmission period through a Beacon frame.
In a specific implementation, the generating module 202 and the setting module 204 may be a central processing unit or a baseband processor; the first sending module 206 and the second sending module 208 may be transmitters or antennas, etc.
Fig. 3 shows a schematic block diagram of an access point device of an embodiment of the invention.
As shown in fig. 3, the access point device 30 according to the embodiment of the present invention includes the communication apparatus 20 of the wireless lan described in the above embodiment, and therefore, the access point device 30 has the same technical effect as the communication apparatus 20 of the wireless lan described in the above embodiment, and is not described again here.
Fig. 4 is a flowchart illustrating a communication method for a wireless local area network of a station device according to an embodiment of the present invention.
As shown in fig. 4, the communication method for the wireless local area network of the station device according to the embodiment of the present invention specifically includes the following steps:
In this embodiment, the station device may listen to a wakeup discovery message frame sent by the access point device according to a set sending period, and further discover a basic service set of the access point device according to the wakeup discovery message frame, so as to complete a communication connection with the access point device by establishing an initial connection with the discovered basic service set, where a sending period of the wakeup discovery message frame may specifically be a negotiated and suspended service period between another station device that has established a communication connection with the access point device but enters a WUR mode and the access point device, so that while realizing effective definition of a sending period of the wakeup discovery message frame, reuse of the service period in a suspended state is also realized, thereby effectively improving spectrum utilization, satisfying requirements of ieee802.11ba, making the device more power-saving, and being beneficial for other station devices that do not establish an initial connection with the access point device to discover a BSS more quickly, thereby facilitating power savings for the device during the initial connection.
The sending period of the wakeup discovery message frame may be set in a non-contention period, and specifically may be a preset time length in the non-contention period, so that other station devices can know the non-contention period through the Beacon frame conveniently, and thus, the data frame is not sent in the time length, and thus, the occurrence of communication collision can be effectively avoided.
Further, the station device may obtain the sending period of the wakeup discovery message frame by listening to the Beacon frame broadcast by the access point device.
Further, in the above-described embodiment, when the other station device exits the WUR mode and recovers the service period in the suspended state, the wake-up discovery message frame transmitted by the access point device according to the new transmission period is received.
In this embodiment, when another station device that has established a communication connection with the access device and suspends the service period negotiated with the access point device exits the WUR mode, the suspended service period is recycled, and in order to ensure that the basic service set of the access point device can be successfully discovered to establish a communication connection with the access point device, it is necessary to receive a wake-up discovery message frame sent by the access point device according to the set new sending period, so as to further implement effective definition of the sending period of the wake-up discovery message frame.
Further, the station device may obtain a new transmission period of the wakeup discovery message frame by listening to the Beacon frame broadcast by the access point device.
The main body of the communication method shown in fig. 4 may be a station device in a network formed by an ap device and a station device, such as a smart phone or a PDA (Personal Digital Assistant).
The interface through which the station device receives the wakeup message frame is a secondary communication interface, and the purpose of receiving the wakeup message frame is to wake up a primary communication interface of the station device to perform communication so as to obtain a downlink data frame buffered by the access point device.
Fig. 5 shows a schematic block diagram of a communication apparatus of a wireless local area network for a station device according to an embodiment of the present invention.
As shown in fig. 5, a communication apparatus 50 of a wireless local area network according to an embodiment of the present invention is used for a station device, where the communication apparatus 50 of the wireless local area network includes: a receiving module 502 and a discovery module 504.
The receiving module 502 is configured to receive a wakeup discovery message frame sent by an access point device, where a sending period of the wakeup discovery message frame is a service period in a suspended state, and the service period is a service period in the suspended state determined by negotiation between other station devices and the access point device, which have established association with the access point device and are in a WUR mode; the discovery module 504 is configured to discover a basic service set of the access point device according to the wake-up discovery message frame, so that the station device establishes an initial connection with the basic service set.
In this embodiment, the station device may listen to a wakeup discovery message frame sent by the access point device according to a set sending period, and further discover a basic service set of the access point device according to the wakeup discovery message frame, so as to complete a communication connection with the access point device by establishing an initial connection with the discovered basic service set, where a sending period of the wakeup discovery message frame may specifically be a negotiated and suspended service period between another station device that has established a communication connection with the access point device but enters a WUR mode and the access point device, so that while realizing effective definition of a sending period of the wakeup discovery message frame, reuse of the service period in a suspended state is also realized, thereby effectively improving spectrum utilization, satisfying requirements of ieee802.11ba, making the device more power-saving, and being beneficial for other station devices that do not establish an initial connection with the access point device to discover a BSS more quickly, thereby facilitating power savings for the device during the initial connection.
The sending period of the wakeup discovery message frame may be set in a non-contention period, and specifically may be a preset time length in the non-contention period, so that other station devices can know the non-contention period through the Beacon frame conveniently, and thus, the data frame is not sent in the time length, and thus, the occurrence of communication collision can be effectively avoided.
Further, the station device may obtain the sending period of the wakeup discovery message frame by listening to the Beacon frame broadcast by the access point device.
Further, in the above embodiment, the receiving module 502 is further configured to: and when the other station equipment exits the WUR mode and recovers the service period in the suspended state, receiving a wakeup discovery message frame sent by the access point equipment according to a new sending period.
In this embodiment, when another station device that has established a communication connection with the access device and suspends the service period negotiated with the access point device exits the WUR mode, the suspended service period is recycled, and in order to ensure that the basic service set of the access point device can be successfully discovered to establish a communication connection with the access point device, it is necessary to receive a wake-up discovery message frame sent by the access point device according to the set new sending period, so as to further implement effective definition of the sending period of the wake-up discovery message frame.
Further, the station device may obtain a new transmission period of the wakeup discovery message frame by listening to the Beacon frame broadcast by the access point device.
In a specific implementation, the receiving module 502 may be a receiver or an antenna, etc.; the discovery module 504 may be a central processor or a baseband processor, etc.
Fig. 6 shows a schematic block diagram of a station apparatus of an embodiment of the present invention.
As shown in fig. 6, the station device 60 according to the embodiment of the present invention includes the communication apparatus 50 of the wireless local area network described in the foregoing embodiment, and therefore, the station device 60 has the same technical effect as the communication apparatus 50 of the wireless local area network described in the foregoing embodiment, and is not described again here.
The technical solution of the present invention is described in detail above with reference to the accompanying drawings, and by using a service period negotiated and suspended between an access point device and a site device as a sending period of a wakeup discovery message frame, it is convenient to implement reuse of the service period, and can effectively improve a spectrum utilization rate, thereby satisfying requirements of ieee802.11ba and enabling the device to save more power.
In the description of the present specification, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and specific meanings of the above terms in the disclosed embodiments may be understood according to specific situations by those of ordinary skill in the art.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. A communication method of a wireless local area network, wherein the communication method of the wireless local area network is used for an access point device, and the communication method of the wireless local area network comprises:
when the station equipment enters a WUR mode and a service period determined by negotiation between the access point equipment and the station equipment is in a suspended state, generating a wakeup discovery message frame;
setting the service period as a sending period of the wakeup discovery message frame;
and sending the wake-up discovery message frame according to the sending period.
2. The method of claim 1, wherein the transmission period comprises a preset duration in a non-contention period.
3. The communication method of the wireless local area network according to claim 1, wherein the step of setting the service period as the transmission period of the wakeup discovery message frame further comprises:
setting an information element format of the transmission period, wherein the information element format comprises a broadcast start-stop time of the transmission period or a broadcast start time and a duration of the transmission period.
4. The communication method of the wireless local area network according to any one of claims 1 to 3, further comprising:
broadcasting the transmission cycle; and
when the station equipment exits the WUR mode and recovers the service period in the suspended state, setting a new sending period of the awakening discovery message frame so as to send the awakening discovery message frame according to the new sending period.
5. A communication method of a wireless local area network, wherein the communication method of the wireless local area network is used for a station device, and the communication method of the wireless local area network includes:
receiving a wakeup discovery message frame transmitted by an access point device, wherein a transmission period of the wakeup discovery message frame is a service period in a suspended state, an
The service period is a service period in a suspended state determined by negotiation between other station equipment which establishes association with the access point equipment and is in a WUR mode and the access point equipment;
and discovering a basic service set of the access point equipment according to the awakening discovery message frame so as to enable the site equipment to establish initial connection with the basic service set.
6. The communication method of the wireless local area network according to claim 5,
and when the other station equipment exits the WUR mode and recovers the service period in the suspended state, receiving the awakening discovery message frame sent by the access point equipment according to a new sending period.
7. A communication apparatus of a wireless local area network, for an access point device, the communication apparatus of the wireless local area network comprising:
a generating module, configured to generate a wakeup discovery message frame when a station device enters a WUR mode and a service period determined by negotiation between the access point device and the station device is in a suspended state;
a setting module, configured to set the service period as a sending period of the wakeup message frame;
a first sending module, configured to send the wakeup discovery message frame according to the sending period.
8. The communications apparatus of claim 7, wherein the transmission period comprises a preset duration in a non-contention period.
9. The wlan communication device according to claim 7, wherein the setting module is further configured to:
setting an information element format of the transmission period, wherein the information element format comprises a broadcast start-stop time of the transmission period or a broadcast start time and a duration of the transmission period.
10. The communications apparatus of a wireless local area network according to any one of claims 7 to 9, further comprising: a second sending module, configured to broadcast the sending period; and
the setup module is further configured to: when the station equipment exits the WUR mode and recovers the service period in the suspended state, setting a new sending period of the awakening discovery message frame so that the first sending module sends the awakening discovery message frame according to the new sending period.
11. A communication apparatus of a wireless local area network, wherein the communication apparatus of the wireless local area network is used for a station device, and the communication apparatus of the wireless local area network comprises:
a receiving module, configured to receive a wake-up discovery message frame sent by an access point device, where a sending period of the wake-up discovery message frame is a service period in a suspend state, an
The service period is a service period in a suspended state determined by negotiation between other station equipment which establishes association with the access point equipment and is in a WUR mode and the access point equipment;
a discovery module, configured to discover a basic service set of the access point device according to the wakeup discovery message frame, so that the station device establishes an initial connection with the basic service set.
12. The communications apparatus of claim 11, wherein the receiving module is further configured to:
and when the other station equipment exits the WUR mode and recovers the service period in the suspended state, receiving the awakening discovery message frame sent by the access point equipment according to a new sending period.
13. An access point device, comprising: communication device of a wireless local area network according to any of claims 7 to 10.
14. A station apparatus, comprising: communication device of a wireless local area network according to claim 11 or 12.
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