CN108738110B - Communication method, communication device and communication equipment of wireless local area network - Google Patents
Communication method, communication device and communication equipment of wireless local area network Download PDFInfo
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- CN108738110B CN108738110B CN201710259771.6A CN201710259771A CN108738110B CN 108738110 B CN108738110 B CN 108738110B CN 201710259771 A CN201710259771 A CN 201710259771A CN 108738110 B CN108738110 B CN 108738110B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a communication method, a communication device and communication equipment of a wireless local area network, wherein the communication method of the wireless local area network comprises the following steps: receiving an initial access request frame sent by a site through a main communication interface, wherein the initial access request frame comprises a service receiving type prompt message of the site; determining the type of the awakening frame according to the received service type prompt message; generating a corresponding wake-up frame according to the wake-up frame type; and sending the wake-up frame to the station. By the technical scheme, the invention can realize the matching of the type of the wake-up frame generated by the access point and the type of the service received by the station, so that the transmission mechanism of the wake-up frame can be suitable for different application scenes, the requirements of IEEE802.11ba are met, and the equipment is 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 the wireless local area network, and a communication device.
Background
In 2016, the Institute of Electrical and Electronics Engineers (IEEE) 802.11 established the next-generation wur (wake Up receiver) of Wi-Fi (Wireless Fidelity) technology, which is mainly applied to the internet of things, in order to save the power consumption of the device as much as possible.
In order to save more power for a device in WUR (i.e., IEEE802.11ba), the main communication interfaces are all in a power-off state, the main communication interface refers to an interface used for data communication in the existing IEEE802.11 standard, and the secondary communication interface (an interface to which a WUR frame is received and transmitted) is in a power-on state to listen to a wake-up frame to obtain downlink data buffered by an AP (Access Point), wherein for a device receiving a wake-up frame, the maximum power consumption required for listening and analyzing the wake-up frame is 1 mW.
In some application scenarios of ieee802.11ba, for example, in some battery-driven devices, in order to enable the device to save more power, it may be the case that receiving wake-up frames is performed periodically, i.e. the secondary communication interface of the device is also in a power-off state; in addition, the secondary communication interfaces of some devices are always in a power-on state, i.e., always in a listening and receiving state of the wake-up frame.
Therefore, considering different application scenarios to make the device more power-saving, it is necessary to define when and how often the wake-up frame is transmitted to meet the requirements of WUR.
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, which implements matching between the type of the wakeup frame generated by the access point and the type of the service received by the station, so that the transmission mechanism of the wakeup frame can be applied to different application scenarios, and the requirements of ieee802.11ba are met, so that the device is 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, which is used on an access point side, and the communication method of the wireless local area network includes: receiving an initial access request frame sent by a site through a main communication interface, wherein the initial access request frame comprises a service receiving type prompt message of the site; determining the type of the awakening frame according to the received service type prompt message; generating a corresponding wake-up frame according to the wake-up frame type; and sending the wake-up frame to the station.
In the technical scheme, when an access point establishes initial connection (Association Request) with a station, the type of a wakeup frame to be sent to the station is determined according to received service type prompt information contained in an initial access Request frame sent by a main communication interface of the station, namely, the type of the wakeup frame generated by the access point is matched with the received service type of the station, different wakeup frame sending mechanisms are set for different types of station equipment, so that the sending mechanism of the wakeup frame can be suitable for different application scenes, the requirements of IEEE802.11ba are met, and the equipment is more power-saving.
Wherein, the initial access request frame includes: a probe request frame, an association request frame, a reassociation request frame, or an authentication request frame.
In the foregoing technical solution, preferably, in the step of generating paired wake-up frames according to the wake-up frame types, the method further includes: and configuring an identification bit for expressing the type of the wake-up frame in the MAC frame header of the wake-up frame.
In this technical solution, specifically, the identifier for indicating the sending mechanism of the wake-up frame (i.e., the type of the wake-up frame) may be located in a MAC (Media Access Control) header of the wake-up frame, for example, "1" and "0" are respectively used to indicate different types of wake-up frames, so that the site device can determine whether to continue to parse other subsequent message data of the wake-up frame according to the service type supported by the site device after receiving the wake-up frame, so as to facilitate the site device to save more power.
In any of the above technical solutions, preferably, the communication method of the wireless local area network further includes: sending a response frame corresponding to the initial access request frame to the site, wherein the response frame carries the type of the wake-up frame; or sending a beacon frame to the station, wherein the beacon frame carries the type of the wakeup frame.
In the technical scheme, in addition to placing the wake-up frame type matched with the service type received by the station equipment in the MAC frame header of the wake-up frame to inform the station equipment, the station equipment can also learn the type of the wake-up frame through the following two ways: on one hand, when responding to the initial access request of the station device, the wake-up frame type may be placed in a response frame corresponding to the initial access request frame, such as a probe response frame, an association response frame, a re-association response frame, or an authentication response frame; on the other hand, the wake-up frame type may be placed in a beacon frame transmitted to the station. Therefore, the diversity of the manner of informing the wake-up frame type to the station can ensure that the station equipment can accurately and smoothly acquire the type of the wake-up frame sent by the access point.
In any one of the above technical solutions, preferably, the receiving the service type prompt message includes: periodically waking up to receive downlink data and continuously waking up to receive the downlink data, wherein the wake-up frame type corresponding to the prompt information of the received service type comprises: a periodic transmission type and a burst transmission type.
In this technical solution, the receiving the service type prompt message sent through the primary communication interface of the station may include: the information indicating that the station periodically wakes up to receive the downlink data and the information indicating that the station continuously wakes up to receive the downlink data are always in a power-on wake-up state to monitor and receive the data, and the station can access to receive the downlink data at any time; further, the wake-up frame types corresponding to the two received service type notification messages are a periodic transmission type and a burst transmission type, for example, "1" and "0" are used to identify the periodic transmission type and the burst transmission type, respectively.
According to the second aspect of the present invention, there is also provided a communication apparatus for a wireless local area network, configured to an access point side, including: a receiving unit, configured to receive an initial access request frame sent by a receiving station through a main communication interface, where the initial access request frame includes a service type receiving prompt message of the station; a determining unit, configured to determine a wake-up frame type according to the received service type prompt message received by the receiving unit; a generating unit, configured to generate a corresponding wakeup frame according to the wakeup frame type determined by the determining unit; a sending unit, configured to send the wake-up frame generated by the generating unit to the station.
In the technical scheme, when the access point establishes initial connection with a station, the wake-up frame type of the wake-up frame required to be sent to the station is determined according to the received service type prompt information contained in the initial access request frame sent by a main communication interface of the station, namely, the matching between the type of the wake-up frame generated by the access point and the received service type of the station is realized, different wake-up frame sending mechanisms are set for different types of station equipment, so that the sending mechanism of the wake-up frame can be suitable for different application scenes, the requirements of IEEE802.11ba are met, and the equipment is more power-saving.
Wherein, the initial access request frame includes: a probe request frame, an association request frame, a reassociation request frame, or an authentication request frame.
In the above technical solution, preferably, the generating unit is further configured to: and configuring an identification bit for expressing the type of the wake-up frame in the MAC frame header of the wake-up frame.
In this technical solution, specifically, the identifier for indicating the sending mechanism of the wake-up frame (i.e., the type of the wake-up frame) may be located in the MAC header of the wake-up frame, for example, "1" and "0" are respectively used to indicate different types of wake-up frames, so that the station device can determine whether to continue to analyze other subsequent message data of the wake-up frame according to the service type supported by the station device after receiving the wake-up frame, so as to facilitate the station device to save more power.
In any of the above technical solutions, preferably, the sending unit is further configured to: sending a response frame corresponding to the initial access request frame to the site, wherein the response frame carries the type of the wake-up frame; or sending a beacon frame to the station, wherein the beacon frame carries the type of the wakeup frame.
In the technical scheme, in addition to placing the wake-up frame type matched with the service type received by the station equipment in the MAC frame header of the wake-up frame to inform the station equipment, the station equipment can also learn the type of the wake-up frame through the following two ways: on one hand, when responding to the initial access request of the station device, the wake-up frame type may be placed in a response frame corresponding to the initial access request frame, such as a probe response frame, an association response frame, a re-association response frame, or an authentication response frame; on the other hand, the wake-up frame type may be placed in a beacon frame transmitted to the station. Therefore, the diversity of the manner of informing the wake-up frame type to the station can ensure that the station equipment can accurately and smoothly acquire the type of the wake-up frame sent by the access point.
In the foregoing technical solution, preferably, the receiving the service type prompt message includes: periodically waking up to receive downlink data and continuously waking up to receive the downlink data, wherein the wake-up frame type corresponding to the prompt information of the received service type comprises: a periodic transmission type and a burst transmission type.
In this technical solution, the receiving the service type prompt message sent through the primary communication interface of the station may include: the information indicating that the station periodically wakes up to receive the downlink data and the information indicating that the station continuously wakes up to receive the downlink data are always in a power-on wake-up state to monitor and receive the data, and the station can access to receive the downlink data at any time; further, the wake-up frame types corresponding to the two received service type notification messages are a periodic transmission type and a burst transmission type, for example, "1" and "0" are used to identify the periodic transmission type and the burst transmission type, respectively.
According to a third aspect of the present invention, there is further provided a communication method of a wireless local area network, which is used on a station side, and includes: receiving a wake-up frame from an access point through a secondary communication interface, wherein the wake-up frame is generated by the access point according to receiving service type prompt information contained in an initial access request frame reported by a site; acquiring the type of the awakening frame; when the wake-up frame type is matched with the received service type prompt message, other message data sent by the access point after the wake-up frame is analyzed.
In the technical scheme, after a secondary communication interface of a station receives a wake-up frame, the type of the wake-up frame is determined firstly, and when the type of the wake-up frame is matched with receiving service type prompt information carried in an initial access request frame sent to an access point, other message data after the wake-up frame is further analyzed, namely the wake-up frame received by the station is generated by the access point according to the receiving service type prompt information contained in the initial access request frame reported by the station, so that the matching between the type of the wake-up frame generated by the access point and the receiving service type of the station is realized, a sending mechanism of the wake-up frame can be suitable for different application scenes, the requirements of IEEE802.1ba are met, and the equipment is more power-saving.
Wherein, the initial access request frame includes: a probe request frame, an association request frame, a reassociation request frame, or an authentication request frame.
In the above technical solution, preferably, the step of obtaining the wake-up frame type of the wake-up frame includes: analyzing an identification bit used for expressing the type of the awakening frame in an MAC frame header of the awakening frame; or analyzing a response frame which is sent by the access point and corresponds to the initial access request frame, wherein the response frame carries the type of the awakening frame; or analyzing a beacon frame sent by the access point, wherein the beacon frame carries the type of the wakeup frame.
In the technical scheme, the type of the received wakeup frame can be determined in the following three specific ways: firstly, acquiring identification bits used for indicating the type of the wake-up frame by analyzing a MAC frame header of the wake-up frame, such as respectively indicating different types of wake-up frames by using '1' and '0'; secondly, the response frame corresponding to the initial access request frame, such as a probe response frame, an association response frame, a re-association response frame or an authentication response frame, of the access point responding to the initial access request can be obtained; thirdly, the wake-up frame type may be obtained from the received beacon frame. Therefore, after the wake-up frame type is determined, whether to continue analyzing subsequent other message data of the wake-up frame can be judged according to the service type supported by the wake-up frame, so that the station equipment is favorable for saving more power, and meanwhile, the station equipment can be ensured to accurately and smoothly know the type of the wake-up frame sent by the access point by informing the diversity of the station mode through the wake-up frame type.
In any one of the above technical solutions, preferably, the receiving the service type prompt message includes: periodically waking up to receive downlink data and continuously waking up to receive the downlink data, wherein the wake-up frame type corresponding to the prompt information of the received service type comprises: a periodic transmission type and a burst transmission type.
In this technical solution, the receiving the service type prompt message sent through the primary communication interface of the station may include: the information indicating that the station periodically wakes up to receive the downlink data and the information indicating that the station continuously wakes up to receive the downlink data are always in a power-on wake-up state to monitor and receive the data, and the station can access to receive the downlink data at any time; further, the wake-up frame types corresponding to the two received service type notification messages are a periodic transmission type and a burst transmission type, for example, "1" and "0" are used to identify the periodic transmission type and the burst transmission type, respectively.
According to the fourth aspect of the present invention, there is also provided a communication apparatus for a wireless local area network, configured to a station side, including: a receiving unit, configured to receive, through a secondary communication interface, a wake-up frame from an access point, where the wake-up frame is generated by the access point according to a received service type prompt message included in an initial access request frame reported by a station; an obtaining unit, configured to obtain a wake-up frame type of the wake-up frame received by the receiving unit; and the analysis unit is used for analyzing other message data sent by the access point after the wakeup frame when the wakeup frame type acquired by the acquisition unit is matched with the service type receiving prompt message.
In the technical scheme, after a secondary communication interface of a station receives a wake-up frame, the type of the wake-up frame is determined firstly, and when the type of the wake-up frame is matched with receiving service type prompt information carried in an initial access request frame sent to an access point, other message data after the wake-up frame is further analyzed, namely the wake-up frame received by the station is generated by the access point according to the receiving service type prompt information contained in the initial access request frame reported by the station, so that the matching between the type of the wake-up frame generated by the access point and the receiving service type of the station is realized, a sending mechanism of the wake-up frame can be suitable for different application scenes, the requirements of IEEE802.1ba are met, and the equipment is more power-saving.
Wherein, the initial access request frame includes: a probe request frame, an association request frame, a reassociation request frame, or an authentication request frame.
In the foregoing technical solution, preferably, the obtaining unit is specifically configured to: analyzing an identification bit used for expressing the type of the awakening frame in an MAC frame header of the awakening frame; or analyzing a response frame which is sent by the access point and corresponds to the initial access request frame, wherein the response frame carries the type of the awakening frame; or analyzing a beacon frame sent by the access point, wherein the beacon frame carries the type of the wakeup frame.
In the technical scheme, the type of the received wakeup frame can be determined in the following three specific ways: firstly, acquiring identification bits used for indicating the type of the wake-up frame by analyzing a MAC frame header of the wake-up frame, such as respectively indicating different types of wake-up frames by using '1' and '0'; secondly, the response frame corresponding to the initial access request frame, such as a probe response frame, an association response frame, a re-association response frame or an authentication response frame, of the access point responding to the initial access request can be obtained; thirdly, the wake-up frame type may be obtained from the received beacon frame. Therefore, after the wake-up frame type is determined, whether to continue analyzing subsequent other message data of the wake-up frame can be judged according to the service type supported by the wake-up frame, so that the station equipment is favorable for saving more power, and meanwhile, the station equipment can be ensured to accurately and smoothly know the type of the wake-up frame sent by the access point by informing the diversity of the station mode through the wake-up frame type.
In any one of the above technical solutions, preferably, the receiving the service type prompt message includes: periodically waking up to receive downlink data and continuously waking up to receive the downlink data, wherein the wake-up frame type corresponding to the prompt information of the received service type comprises: a periodic transmission type and a burst transmission type.
In this technical solution, the receiving the service type prompt message sent through the primary communication interface of the station may include: the information indicating that the station periodically wakes up to receive the downlink data and the information indicating that the station continuously wakes up to receive the downlink data are always in a power-on wake-up state to monitor and receive the data, and the station can access to receive the downlink data at any time; further, the wake-up frame types corresponding to the two received service type notification messages are a periodic transmission type and a burst transmission type, for example, "1" and "0" are used to identify the periodic transmission type and the burst transmission type, respectively.
According to a fifth aspect of the present invention, there is also provided a communication device, comprising: communication means of a wireless local area network as described in the second aspect above; and/or a communication device of a wireless local area network as described in the fourth aspect above.
Through the technical scheme of the invention, the matching between the type of the wake-up frame generated by the access point and the type of the service received by the station can be realized, so that the transmission mechanism of the wake-up frame can be suitable for different application scenes, the requirements of IEEE802.11ba are met, and the equipment is more power-saving.
Drawings
Fig. 1 is a flowchart illustrating a communication method of a wireless local area network according to a first embodiment of the present invention;
fig. 2 shows a schematic block diagram of a communication device of a wireless local area network according to a first embodiment of the present invention;
fig. 3 is a flowchart illustrating a communication method of a wireless lan according to a second embodiment of the present invention;
fig. 4 shows a schematic block diagram of a communication device of a wireless local area network according to a second 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 of a wireless local area network according to a first embodiment of the present invention.
As shown in fig. 1, the communication method of the wireless local area network according to the first embodiment of the present invention specifically includes the following steps:
Wherein, the initial access request frame includes: a probe request frame, an association request frame, a reassociation request frame, or an authentication request frame.
And 104, determining the type of the awakening frame according to the received service type prompt message.
And 106, generating a corresponding wake-up frame according to the wake-up frame type.
In this step, the method may further include the steps of: and configuring an identification bit for expressing the type of the wake-up frame in the MAC frame header of the wake-up frame.
In this embodiment, specifically, the identifier for indicating the sending mechanism of the wake-up frame (i.e., the type of the wake-up frame) may be located in the MAC header of the wake-up frame, for example, "1" and "0" are respectively used to indicate different types of wake-up frames, so that the station device can determine whether to continue to parse other message data subsequent to the wake-up frame according to the service type supported by the station device after receiving the wake-up frame, so as to facilitate the station device to save more power.
And step 108, sending the wake-up frame to the station.
In this embodiment, when the access point establishes an initial connection with a station, the wake-up frame type of the wake-up frame to be sent to the station is determined according to the received service type prompt information included in the initial access request frame sent by the main communication interface of the station, that is, matching between the type of the wake-up frame generated by the access point and the received service type of the station is achieved, and different wake-up frame sending mechanisms are set for different types of station devices, so that the sending mechanism of the wake-up frame can be suitable for different application scenarios, the requirement of ieee802.11ba is met, and the device is more power-saving.
Further, in other embodiments of the present invention, in addition to placing the wake-up frame type matched with the received service type of the station device in the MAC header of the wake-up frame to notify the station device, the station device may also learn the type of the wake-up frame through the following two specific embodiments:
the first embodiment is as follows: and sending a response frame corresponding to the initial access request frame to the site, wherein the response frame carries the type of the wake-up frame.
In this embodiment, the wake-up frame type may be placed in a response frame corresponding to the initial access request frame, such as a probe response frame, an association response frame, a re-association response frame, or an authentication response frame, in response to the initial access request of the station device.
Example two: and sending a beacon frame to the station, wherein the beacon frame carries the type of the wakeup frame.
In this embodiment, the wake-up frame type may be placed in a beacon frame sent to the station. Therefore, the diversity of the manner of informing the wake-up frame type to the station can ensure that the station equipment can accurately and smoothly acquire the type of the wake-up frame sent by the access point.
Further, in any of the above embodiments, the receiving service type notification information includes: periodically waking up to receive downlink data and continuously waking up to receive the downlink data, wherein the wake-up frame type corresponding to the prompt information of the received service type comprises: a periodic transmission type and a burst transmission type.
In this embodiment, the receiving the service type prompt message sent through the primary communication interface of the station may include: the information indicating that the station periodically wakes up to receive the downlink data and the information indicating that the station continuously wakes up to receive the downlink data are always in a power-on wake-up state to monitor and receive the data, and the station can access to receive the downlink data at any time; further, the wake-up frame types corresponding to the two received service type notification messages are a periodic transmission type and a burst transmission type, for example, "1" and "0" are used to identify the periodic transmission type and the burst transmission type, respectively.
In the specific embodiment of the present invention, for the internet of things device, the characteristic is that the device wakes up periodically to receive downlink data, so that the device can be considered to be also periodic to receive a wake-up frame (i.e., wake-up frame); for wearable devices, such as smartwatches, which can be accessed to receive downlink data at any time, receiving a wake-up frame (i.e., wake-up frame) is bursty.
The main body of the communication method shown in fig. 1 may be an access point device in a network formed by an access point and a station, such as a router or a server with a Wi-Fi interface.
Fig. 2 shows a schematic block diagram of a communication device of a wireless local area network according to a first embodiment of the present invention.
As shown in fig. 2, a communication device 20 of a wireless local area network according to a first embodiment of the present invention specifically includes: a receiving unit 202, a determining unit 204, a generating unit 206 and a transmitting unit 208.
The receiving unit 202 is configured to receive an initial access request frame sent by a receiving station through a primary communication interface, where the initial access request frame includes service type receiving prompt information of the station; the determining unit 204 is configured to determine a wake-up frame type according to the received service type prompt message received by the receiving unit 202; the generating unit 206 is configured to generate a corresponding wake-up frame according to the wake-up frame type determined by the determining unit 204; the sending unit 208 is configured to send the wake-up frame generated by the generating unit 206 to the station.
In this embodiment, when the access point establishes an initial connection with a station, the wake-up frame type of the wake-up frame to be sent to the station is determined according to the received service type prompt information included in the initial access request frame sent by the main communication interface of the station, that is, matching between the type of the wake-up frame generated by the access point and the received service type of the station is achieved, and different wake-up frame sending mechanisms are set for different types of station devices, so that the sending mechanism of the wake-up frame can be suitable for different application scenarios, the requirement of ieee802.11ba is met, and the device is more power-saving.
Wherein, the initial access request frame includes: a probe request frame, an association request frame, a reassociation request frame, or an authentication request frame.
Further, in the above embodiment, the generating unit 206 is further configured to: and configuring an identification bit for expressing the type of the wake-up frame in the MAC frame header of the wake-up frame.
In this embodiment, specifically, the identifier for indicating the sending mechanism of the wake-up frame (i.e., the type of the wake-up frame) may be located in the MAC header of the wake-up frame, for example, "1" and "0" are respectively used to indicate different types of wake-up frames, so that the station device can determine whether to continue to parse other message data subsequent to the wake-up frame according to the service type supported by the station device after receiving the wake-up frame, so as to facilitate the station device to save more power.
Further, in other embodiments of the present invention, in addition to placing the wake-up frame type matched with the received service type of the station device in the MAC header of the wake-up frame to notify the station device, the station device may also learn the type of the wake-up frame through the following two specific embodiments:
in a first embodiment, the sending unit 208 is further configured to: and sending a response frame corresponding to the initial access request frame to the site, wherein the response frame carries the type of the wake-up frame.
In this embodiment, the wake-up frame type may be placed in a response frame corresponding to the initial access request frame, such as a probe response frame, an association response frame, a re-association response frame, or an authentication response frame, in response to the initial access request of the station device.
In the second embodiment, the sending unit 208 is further configured to: and sending a beacon frame to the station, wherein the beacon frame carries the type of the wakeup frame.
In this embodiment, the wake-up frame type may be placed in a beacon frame sent to the station. Therefore, the diversity of the mode of informing the type of the wake-up frame to the station can ensure that the station equipment can accurately and smoothly know the type of the wake-up frame sent by the access point.
Further, in any of the above embodiments, the receiving service type notification information includes: periodically waking up to receive downlink data and continuously waking up to receive the downlink data, wherein the wake-up frame type corresponding to the prompt information of the received service type comprises: a periodic transmission type and a burst transmission type.
In this embodiment, the receiving the service type prompt message sent through the primary communication interface of the station may include: the information indicating that the station periodically wakes up to receive the downlink data and the information indicating that the station continuously wakes up to receive the downlink data are always in a power-on wake-up state to monitor and receive the data, and the station can access to receive the downlink data at any time; then, the wake-up frame types corresponding to the two types of receiving service type prompting information are respectively a periodic transmission type and a burst transmission type, and the periodic transmission type and the burst transmission type are respectively identified by using "1" and "0", for example.
In the specific embodiment of the present invention, for the internet of things device, the characteristic is that the device wakes up periodically to receive downlink data, so that the device can be considered to be also periodic to receive a wake-up frame (i.e., wake-up frame); for wearable devices, such as smartwatches, which can be accessed to receive downlink data at any time, receiving a wake-up frame (i.e., wake-up frame) is bursty.
In a specific implementation, the receiving unit 202 and the transmitting unit 208 may be receivers or antennas, etc.; the determining unit 204 and the generating unit 206 may be a central processor or a baseband processor or the like.
Fig. 3 is a flowchart illustrating a communication method of a wireless lan according to a second embodiment of the present invention.
As shown in fig. 3, a communication method of a wireless local area network according to a second embodiment of the present invention specifically includes the following steps:
Wherein, the initial access request frame includes: a probe request frame, an association request frame, a reassociation request frame, or an authentication request frame.
In this embodiment, after the secondary communication interface of the station receives the wakeup frame, the type of the wakeup frame is determined first, and when the type of the wakeup frame matches with the reception service type prompt information carried in the initial access request frame sent to the access point, other message data after the wakeup frame is further analyzed, that is, the wakeup frame received by the station is generated by the access point according to the reception service type prompt information included in the initial access request frame reported by the station, so as to implement matching between the type of the wakeup frame generated by the access point and the reception service type of the station, so that the transmission mechanism of the wakeup frame can be applicable to different application scenarios, meet the requirements of ieee802.11ba, and enable the device to be more power-saving.
Further, in step 304 in the above embodiment, the wake-up frame type may be obtained by specifically implementing any one of the following three embodiments:
the first embodiment is as follows: analyzing the identification bits used for expressing the type of the wake-up frame in the MAC frame header of the wake-up frame, namely analyzing the MAC frame header of the wake-up frame to obtain the identification bits used for expressing the type of the wake-up frame, such as respectively expressing different types of wake-up frames by '1' and '0';
example two: analyzing a response frame corresponding to the initial access request frame sent by the access point, where the response frame carries the wake-up frame type and can be obtained from a response frame corresponding to the initial access request frame, where the access point responds to the initial access request, such as a probe response frame, an association response frame, a re-association response frame, or an authentication response frame;
example three: and analyzing the beacon frame sent by the access point, wherein the beacon frame carries the type of the wakeup frame, and the type of the wakeup frame can be obtained from the received beacon frame.
In summary, according to the three specific embodiments for acquiring the wake-up frame type, after determining the wake-up frame type, the station device can determine whether to continue to analyze other subsequent message data of the wake-up frame according to the service type supported by the station device, so as to save more power; meanwhile, the diversity of the mode of the station is informed through the type of the wake-up frame, so that the station equipment can accurately and smoothly acquire the type of the wake-up frame sent by the access point.
Further, in any of the above embodiments, the receiving service type notification information includes: periodically waking up to receive downlink data and continuously waking up to receive the downlink data, wherein the wake-up frame type corresponding to the prompt information of the received service type comprises: a periodic transmission type and a burst transmission type.
In this embodiment, the receiving the service type prompt message sent through the primary communication interface of the station may include: the information indicating that the station periodically wakes up to receive the downlink data and the information indicating that the station continuously wakes up to receive the downlink data are always in a power-on wake-up state to monitor and receive the data, and the station can access to receive the downlink data at any time; further, the wake-up frame types corresponding to the two received service type notification messages are a periodic transmission type and a burst transmission type, for example, "1" and "0" are used to identify the periodic transmission type and the burst transmission type, respectively.
In the specific embodiment of the present invention, for the internet of things device, the characteristic is that the device wakes up periodically to receive downlink data, so that the device can be considered to be also periodic to receive a wake-up frame (i.e., wake-up frame); for wearable devices, such as smartwatches, which can be accessed to receive downlink data at any time, receiving a wake-up frame (i.e., wake-up frame) is bursty.
The main body of the communication method shown in fig. 3 may be a station device in a network formed by an access point and a station, such as a smart phone or a PDA (Personal Digital Assistant).
The interface for the station device to receive the wakeup frame is a secondary communication interface, and the purpose of receiving the wakeup frame is to wake up a primary communication interface of the station device for communication so as to obtain a downlink data frame buffered by the access point device.
Fig. 4 shows a schematic block diagram of a communication device of a wireless local area network according to a second embodiment of the present invention.
As shown in fig. 4, a communication apparatus 40 of a wireless lan according to a second embodiment of the present invention includes: a receiving unit 402, an obtaining unit 404 and an analyzing unit 406.
The receiving unit 402 is configured to receive a wakeup frame from an access point through a secondary communication interface, where the wakeup frame is generated by the access point according to a received service type prompt message included in an initial access request frame reported by a station; the obtaining unit 404 is configured to obtain a wake-up frame type of the wake-up frame received by the receiving unit 402; the parsing unit 406 is configured to parse other message data sent by the access point after the wakeup frame when the wakeup frame type acquired by the acquiring unit 404 matches the received service type prompt information.
In this embodiment, after the secondary communication interface of the station receives the wakeup frame, the type of the wakeup frame is determined first, and when the type of the wakeup frame matches with the reception service type prompt information carried in the initial access request frame sent to the access point, other message data after the wakeup frame is further analyzed, that is, the wakeup frame received by the station is generated by the access point according to the reception service type prompt information included in the initial access request frame reported by the station, so as to implement matching between the type of the wakeup frame generated by the access point and the reception service type of the station, so that the transmission mechanism of the wakeup frame can be applicable to different application scenarios, meet the requirements of ieee802.11ba, and enable the device to be more power-saving.
Wherein, the initial access request frame includes: a probe request frame, an association request frame, a reassociation request frame, or an authentication request frame.
Further, the obtaining unit 404 in the above embodiment may specifically obtain the wake-up frame type through any one of the following three embodiments:
the first embodiment is as follows: analyzing the identification bits used for expressing the type of the wake-up frame in the MAC frame header of the wake-up frame, namely analyzing the MAC frame header of the wake-up frame to obtain the identification bits used for expressing the type of the wake-up frame, such as respectively expressing different types of wake-up frames by '1' and '0';
the second embodiment: analyzing a response frame corresponding to the initial access request frame sent by the access point, where the response frame carries the wake-up frame type and can be obtained from a response frame corresponding to the initial access request frame, where the access point responds to the initial access request, such as a probe response frame, an association response frame, a re-association response frame, or an authentication response frame;
example three: and analyzing the beacon frame sent by the access point, wherein the beacon frame carries the type of the wakeup frame, and the type of the wakeup frame can be obtained from the received beacon frame.
In summary, according to the three specific embodiments for acquiring the wake-up frame type, after determining the wake-up frame type, the station device can determine whether to continue to analyze other subsequent message data of the wake-up frame according to the service type supported by the station device, so as to save more power; meanwhile, the diversity of the mode of the station is informed through the type of the wake-up frame, so that the station equipment can accurately and smoothly acquire the type of the wake-up frame sent by the access point.
Further, in any of the above embodiments, the receiving service type notification information includes: periodically waking up to receive downlink data and continuously waking up to receive the downlink data, wherein the wake-up frame type corresponding to the prompt information of the received service type comprises: a periodic transmission type and a burst transmission type.
In this embodiment, the receiving the service type prompt message sent through the primary communication interface of the station may include: the information indicating that the station periodically wakes up to receive the downlink data and the information indicating that the station continuously wakes up to receive the downlink data are always in a power-on wake-up state to monitor and receive the data, and the station can access to receive the downlink data at any time; further, the wake-up frame types corresponding to the two received service type notification messages are a periodic transmission type and a burst transmission type, for example, "1" and "0" are used to identify the periodic transmission type and the burst transmission type, respectively.
In the specific embodiment of the present invention, for the internet of things device, the characteristic is that the device wakes up periodically to receive downlink data, so that the device can be considered to be also periodic to receive a wake-up frame (i.e., wake-up frame); for wearable devices, such as smartwatches, which can be accessed to receive downlink data at any time, receiving a wake-up frame (i.e., wake-up frame) is bursty.
In a specific implementation, the receiving unit 402 may be a transmitter, an antenna, or the like, and the obtaining unit 404 and the analyzing unit 406 may be a signal processor, a central processing unit, a baseband processor, or the like.
The present invention also provides a communication device, comprising: a communication device 20 of a wireless local area network as shown in fig. 2; and/or a communication device 40 of a wireless local area network as shown in fig. 4.
The technical scheme of the invention is described in detail in the above with reference to the accompanying drawings, and by the technical scheme of the invention, the matching between the type of the wakeup frame generated by the access point and the type of the service received by the station can be realized, so that the transmission of the wakeup frame can be suitable for different application scenarios, the requirements of ieee802.11ba are met, and the equipment is more power-saving.
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 (11)
1. A communication method of a wireless local area network, which is used for an access point side, comprising:
receiving an initial access request frame sent by a site through a main communication interface, wherein the initial access request frame comprises a service receiving type prompt message of the site;
determining the type of the awakening frame according to the received service type prompt message;
generating a corresponding wake-up frame according to the wake-up frame type;
sending the wake-up frame to the site, so that after receiving the wake-up frame, the site judges whether to continue analyzing other subsequent message data of the wake-up frame according to the service type supported by the site;
the receiving the service type prompt message comprises: periodically waking up to receive downlink data and continuously waking up to receive the downlink data, wherein the wake-up frame type corresponding to the prompt information of the received service type comprises: a periodic transmission type and a burst transmission type.
2. The communication method of claim 1, wherein in the step of generating the corresponding wake-up frame according to the wake-up frame type, the method further comprises:
and configuring an identification bit for expressing the type of the wake-up frame in the MAC frame header of the wake-up frame.
3. The communication method of the wireless local area network according to claim 1, further comprising:
sending a response frame corresponding to the initial access request frame to the site, wherein the response frame carries the type of the wake-up frame; or
And sending a beacon frame to the station, wherein the beacon frame carries the type of the wakeup frame.
4. A communication method of a wireless local area network, which is used for a station side, and comprises:
receiving a wake-up frame from an access point through a secondary communication interface, wherein the wake-up frame is generated by the access point according to receiving service type prompt information contained in an initial access request frame reported by a site;
acquiring the type of the awakening frame;
when the awakening frame type is matched with the received service type prompt message, other message data sent by the access point after the awakening frame is analyzed;
the receiving the service type prompt message comprises: periodically waking up to receive downlink data and continuously waking up to receive the downlink data, wherein the wake-up frame type corresponding to the prompt information of the received service type comprises: a periodic transmission type and a burst transmission type.
5. The communication method of claim 4, wherein the step of obtaining the wake-up frame type of the wake-up frame comprises:
analyzing an identification bit used for expressing the type of the awakening frame in an MAC frame header of the awakening frame; or
Analyzing a response frame which is sent by the access point and corresponds to the initial access request frame, wherein the response frame carries the type of the awakening frame; or
And analyzing a beacon frame sent by the access point, wherein the beacon frame carries the type of the awakening frame.
6. A communication apparatus of a wireless local area network, configured to be used on an access point side, comprising:
a receiving unit, configured to receive an initial access request frame sent by a receiving station through a main communication interface, where the initial access request frame includes a service type receiving prompt message of the station;
a determining unit, configured to determine a wake-up frame type according to the received service type prompt message received by the receiving unit;
a generating unit, configured to generate a corresponding wakeup frame according to the wakeup frame type determined by the determining unit;
a sending unit, configured to send the wake-up frame generated by the generating unit to the site, so that after receiving the wake-up frame, the site determines, according to a service type supported by the site, whether to continue to analyze other subsequent message data of the wake-up frame;
the receiving the service type prompt message comprises: periodically waking up to receive downlink data and continuously waking up to receive the downlink data, wherein the wake-up frame type corresponding to the prompt information of the received service type comprises: a periodic transmission type and a burst transmission type.
7. The communications apparatus of claim 6, wherein the generating unit is further configured to:
and configuring an identification bit for expressing the type of the wake-up frame in the MAC frame header of the wake-up frame.
8. The apparatus of claim 6, wherein the sending unit is further configured to:
sending a response frame corresponding to the initial access request frame to the site, wherein the response frame carries the type of the wake-up frame; or
And sending a beacon frame to the station, wherein the beacon frame carries the type of the wakeup frame.
9. A communication apparatus of a wireless local area network, for a station side, comprising:
a receiving unit, configured to receive, through a secondary communication interface, a wake-up frame from an access point, where the wake-up frame is generated by the access point according to a received service type prompt message included in an initial access request frame reported by a station;
an obtaining unit, configured to obtain a wake-up frame type of the wake-up frame received by the receiving unit;
the analysis unit is used for analyzing other message data sent by the access point after the awakening frame when the type of the awakening frame acquired by the acquisition unit is matched with the prompt information of the received service type;
the receiving the service type prompt message comprises: periodically waking up to receive downlink data and continuously waking up to receive the downlink data, wherein the wake-up frame type corresponding to the prompt information of the received service type comprises: a periodic transmission type and a burst transmission type.
10. The wlan communication device according to claim 9, wherein the obtaining unit is specifically configured to:
analyzing an identification bit used for expressing the type of the awakening frame in an MAC frame header of the awakening frame; or
Analyzing a response frame which is sent by the access point and corresponds to the initial access request frame, wherein the response frame carries the type of the awakening frame; or
And analyzing a beacon frame sent by the access point, wherein the beacon frame carries the type of the awakening frame.
11. A communication device, comprising:
communication means of a wireless local area network according to any one of claims 6 to 8; and/or
Communication device of a wireless local area network according to claim 9 or 10.
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| CN110536384A (en) * | 2019-03-29 | 2019-12-03 | 中兴通讯股份有限公司 | Wake up the method, apparatus and storage medium of terminal |
| CN115333946B (en) * | 2022-07-28 | 2024-03-08 | 深圳海星智驾科技有限公司 | Node query method, device and equipment of robot operating system |
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