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WO2018068604A1 - Procédé de réveil, dispositif d'extrémité de réception et dispositif d'extrémité d'émission - Google Patents

Procédé de réveil, dispositif d'extrémité de réception et dispositif d'extrémité d'émission Download PDF

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Publication number
WO2018068604A1
WO2018068604A1 PCT/CN2017/101321 CN2017101321W WO2018068604A1 WO 2018068604 A1 WO2018068604 A1 WO 2018068604A1 CN 2017101321 W CN2017101321 W CN 2017101321W WO 2018068604 A1 WO2018068604 A1 WO 2018068604A1
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WIPO (PCT)
Prior art keywords
twt
end device
receiving
receiving end
wup
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Ceased
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PCT/CN2017/101321
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English (en)
Chinese (zh)
Inventor
王娟
廖湘柏
于健
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of WO2018068604A1 publication Critical patent/WO2018068604A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • 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

Definitions

  • the present application relates to the field of wireless communications, and more particularly to a wake-up method, a sink device, and a sink device.
  • Wi-Fi Wireless Fidelity
  • TWT Target Wake Time
  • a receiving device for example, a STA
  • a transmitting device for example, an access point (AP)
  • establish a TWT protocol Agreements
  • Wake up at TWT to communicate with the AP.
  • 802.11ax supports multi-user Uplink/Downlink (MU UL/DL) transmission.
  • MU UL/DL Uplink/Downlink
  • SP TWT service period
  • the TWT mechanism is similar to the TWT mechanism in the 802.11ah standard.
  • a single or multiple users establishing the TWT protocol wake up waiting for communication at the negotiated TWT time point, but all the waking users are not necessarily scheduled in the TWT, and no STAs are scheduled. Wake up wasting energy.
  • a broadcast TWT request may be initiated by a STA (scheduled STA) that can be scheduled by the TWT, and the AP will schedule multiple STAs to communicate in the broadcast TWT, and all the energy-saving STAs (Power Saves, PS STAs) will be in the agreed target.
  • the beacon transmission time (TBTT) wakes up to receive a beacon frame, and the beacon frame can carry information related to the broadcast TWT.
  • the station that receives the beacon frame wakes up at the broadcast TWT time. Waiting for scheduling, but only some STAs communicate in the TWT Service Period (TWT Service Period), and other wake-up STAs waste power.
  • TWT Service Period TWT Service Period
  • the STAs scheduled in the broadcast TWT may not have the need to communicate to transmit data, and these STAs are awake in the broadcast TWT to be scheduled not only wasting energy but also wasting channel resources.
  • the embodiment of the present invention provides a wake-up method, a receiving end device, and a sending end device, which can reasonably schedule the wake-up and sleep states of the receiving end device.
  • a wake-up method is provided, the method being performed by a receiving device, the receiving device comprising a master transceiver and a wake-up receiver WUR, the method comprising: the receiving device acquiring a target wake-up time TWT; before the TWT, the receiving device receiving a wake-up packet WUP through the WUR; the receiving device And maintaining, according to the target receiving device information carried by the WUP, the main transceiver to sleep in the TWT or waking up the main transceiver through the WUR at the TWT.
  • the embodiment of the present application determines whether the primary transceiver of the receiving device needs to be woken up according to the WUP before the TWT, so that the primary transceiver of the receiving terminal device that does not need to wake up keeps sleeping in the TWT, and the receiving terminal device needs to wake up through the primary transceiver. Wake up to receive the schedule, which enables reasonable scheduling of sleep and wake-up of the receiving device.
  • the TWT scheduled receiving device wakes up, but does not need to wake up the device, for example, the device that has no data transmission during this time period wakes up to increase power consumption.
  • the WUP before the TWT, it is determined by the WUP which devices need to wake up, and which devices do not need to wake up, so that all scheduled receiving devices are avoided, and power consumption can be reduced.
  • the wake-up receiver may change from the sleep mode to the wake-up mode when receiving the wake-up packet, so as to avoid energy loss caused by the wake-up receiver staying in the wake-up mode.
  • the receiving end device keeps the main transceiver from sleeping in the TWT or passes the TWT in the TWT according to the target receiving device information carried by the WUP Wwaking the main transceiver includes: if the target receiving device information does not include an identifier (Identifier, ID) of the receiving device or a group ID that does not include a group to which the receiving device belongs, the receiving The end device keeps the primary transceiver dormant at the TWT.
  • ID an identifier
  • the target receiving device information includes the ID of the receiving device or the group including the group to which the receiving device belongs ID
  • the receiving device wakes up the main transceiver through the WUR at the TWT.
  • the target receiving device information carried by the WUP may be an ID of the receiving device.
  • the target receiving device information may also be a group ID, or may be Other information carried by the WUP to determine if the primary transceiver is to be woken up.
  • the receiving end device may be an STA or an AP.
  • the receiving device is a STA, and the STA can configure two receivers: a primary radio (MR) and a Wake-Up Receiver (WUR).
  • the primary transceiver can be used for data transmission and reception. Typically, the primary transceiver is off. WUR can be used to receive Wake-up Packet (WUP) and wake up the main circuit.
  • WUP Wake-up Packet
  • the WUR needs to be ready to receive when the AP sends a WUP.
  • the STA may have no data interaction with the AP for a period of time. If the WUR is always on, detecting the WUP will increase power consumption.
  • the embodiment of the present application combines the TWT mechanism with the WUP, determines whether to wake up the primary transceiver through the WUP, and the TWT mechanism determines the time to wake up the primary transceiver.
  • the main transceiver is woken up at the TWT. In this way, the main transceiver wakes up to transmit data frames, trigger frames, beacon frames, etc.
  • the receiving device can pre-agreed the wake-up time of the WUR with the sending device.
  • the WUR wakes up to receive the WUP at the appointed time, and the WUR can sleep at other times, which can further reduce the power consumption caused by the WUR staying awake.
  • the TWT may be determined when the TWT protocol is established by transmitting a TWT request message and a TWT response message between the receiving end device and the transmitting end device.
  • the receiving end device receiving the wakeup packet WUP by using the WUR includes: the receiving end device passes the WUR at [T1, The WUP is received during a time period T1, where T1 and T2 are times.
  • the time at which the receiving device receives the WUP may be one time point or a time period.
  • defining a time period [T1, T2] can overcome the WUR time inaccuracy, and can overcome the WUR's circumstance in time; in addition, it can also go to the case where the AP may send multiple WUPs.
  • an additional preset time may be waited for, or an expiration time may be defined, if the preset time is reached or the expiration time is reached. If the WUP has not been received, it is considered that the WUP has not been received.
  • T1 and T2 may be relative time or absolute time.
  • T1, T2 can be times relative to the TWT.
  • T1 and T2 in the embodiment of the present application may precede the TWT.
  • the time period [T1, T2] at which the receiving device receives the WUP may be determined by the time of the TWT, or may be determined by the time at which the receiving device receives the beacon frame (Beacon).
  • the start and end time of receiving the WUP may be the time relative to the TWT, or may be the time relative to receiving the beacon frame.
  • T1 and T2 can also be absolute time.
  • the method further includes: the receiving end device acquiring indication information, where the indication information is used to indicate that the receiving end device adopts Determining, according to the WUP, whether the primary transceiver remains dormant at the TWT.
  • the indication information in the embodiment of the present application may be sent when the receiving device and the sending device negotiate the TWT, and may also be sent after the TWT is completed or before the TWT is negotiated.
  • the indication information in the embodiment of the present application may be separately sent, or may be carried in some messages exchanged between the sending end device and the receiving end device.
  • the receiving device or the transmitting device may determine whether a mechanism for waking up the primary transceiver through the WUP is required to assist the TWT.
  • the receiving end device may notify the sending end device after determining the dormant mechanism, or may be the sending end device notifying the receiving end device after determining the dormant mechanism, or the receiving end device and the sending end device determining the wake-up mechanism through negotiation.
  • the wakeup mechanism provided by the embodiment of the present application may be used for dormancy.
  • the receiving device can employ other wake-up mechanisms or perform an existing wake-up procedure.
  • the method further includes: the receiving end device sending, by using the primary transceiver, a TWT request message to an access point sending end device.
  • the receiving end device receives, by the primary transceiver, a TWT response message that is sent by the sending end device according to the TWT request message, where the TWT request message or the TWT response message includes indication information.
  • the TWT request message or the TWT response message may carry an indication information field for indicating, by the receiving end device, a mechanism for determining whether the TWT primary transceiver remains dormant according to the WUP.
  • the indication information field may be one bit. For example, a bit of 1 indicates that the WWT can be used to determine whether the TWT wakes up the primary transceiver according to the WUP, and the bit 0 can indicate whether the TWT is maintained according to the WUP, which is not defined by the present application.
  • the primary transceiver sleep mechanism, or bit 0 indicates that the TWT is used to wake up the primary transceiver using the existing TWT mechanism.
  • the indication information for determining whether to adopt the wake-up mechanism of the present application is included in the TWT request message or the TWT response message, and may also include other messages or separate transmission determinations for establishing the TWT protocol at the receiving end device and the transmitting end device, and may also receive the terminal setting.
  • the method further includes: the receiving end device sending a data frame to the sending end device, where the data frame is used to indicate the The receiving end device supports determining whether the primary transceiver remains dormant at the TWT according to the WUP.
  • the main transceiver can be woken up according to the solution of the present application. If the receiving device does not support the wake-up mechanism of the present application, other wake-up methods for waking up the main transceiver may be employed.
  • the receiving device can send a data frame at any time to indicate to the sending device whether to support the wake-up mechanism combining the WUP and the TWT, so that the STA that needs to transmit data can be flexibly scheduled, and the deeper energy saving can be realized.
  • the MAC frame header of the data frame carries an Operation Mode Indication (OMI), where the OMI includes
  • OMI Operation Mode Indication
  • the receiving end device supports determining, according to the WUP, whether the primary transceiver in the TWT is to remain dormant.
  • the OMH of the existing Media Access Control (MAC) frame header may be used to indicate whether the receiving end device supports the wake-up mechanism of the present application, or may be in an efficient aggregation field.
  • the new TWT scheduling support indication field is redesigned to indicate whether the receiving end device supports the wakeup mechanism of the present application.
  • the data frame includes a high-efficiency aggregation field, where the high-efficiency aggregation field includes a TWT scheduling support indication field, and the TWT scheduling support indication field And configured to indicate that the receiving end device supports determining, according to the WUP, whether the primary transceiver remains dormant in the TWT.
  • the second aspect provides a wake-up method, including: the sending end device sends a wake-up packet WUP to the receiving end device before the target wake-up time TWT, where the WUP is used by the receiving end device according to the WUP Target receiving device information, keeping the primary transceiver asleep at the TWT or waking up the primary transceiver through the WUR at the TWT.
  • the embodiment of the present application determines whether the primary transceiver of the receiving device needs to be woken up according to the WUP before the TWT, so that the primary transceiver of the receiving terminal device that does not need to wake up keeps sleeping in the TWT, and the receiving terminal device needs to wake up through the primary transceiver. Wake up to receive the schedule, which enables reasonable scheduling of sleep and wake-up of the receiving device.
  • the WUP is specifically configured to instruct the receiving end device to keep the main transceiver from sleeping in the TWT.
  • the WUP is specifically configured to instruct the receiving end device to wake up the main transceiver by using the WUR at the TWT.
  • the sending end device before the sending, sends, by the sending end device, the wake-up packet WUP to the receiving end device, where the sending end device passes the The WUR sends the WUP to the receiving device during the [T1, T2] time period, where T1 and T2 are times.
  • both T1 and T2 are phases. Time for TWT.
  • the method further includes: the sending end device acquiring indication information, where the indication information is used to indicate that the receiving end device adopts Determining whether the primary transceiver is dormant at the TWT according to the WUP.
  • the method further includes: the sending end device receiving, by the sending end device, a TWT request message sent by the receiving end device by using the primary transceiver The sending end device sends a TWT response message to the primary transceiver of the receiving end device according to the TWT request message, where the TWT request message or the TWT response message includes indication information.
  • the method further includes: the sending end device receiving a data frame sent by the receiving end device, where the data frame is used by Instructing the receiving end device to determine whether the primary transceiver is dormant in the TWT according to the WUP.
  • the MAC frame header of the data frame carries an operation mode indication OMI, where the OMI includes The WUP determines whether the master transceiver is dormant at the TWT.
  • the data frame includes a high-efficiency aggregation field, where the high-efficiency aggregation field includes a TWT scheduling support indication field, and the TWT scheduling support indication field And configured to indicate that the receiving end device supports determining, according to the WUP, whether the primary transceiver is dormant in the TWT.
  • a wake-up method is provided, the method being performed by a receiving device, the receiving device comprising a primary transceiver and a wake-up receiver, the method comprising: the receiving device transmitting data to a transmitting device a frame, the data frame is used to indicate that the receiving end device supports a first wakeup mechanism and a second wakeup mechanism, and the first wakeup mechanism is configured to determine, according to the wakeup packet WUP, whether the TWT primary transceiver remains dormant at a target wakeup time.
  • the second wake-up mechanism is a mechanism for the receiving end device to wake up the main transceiver at the TWT by using the wake-up receiver; the receiving end device receives indication information, where the indication information is used to indicate the receiving end.
  • the device adopts one of the first wake-up mechanism and the second wake-up mechanism; the receiving device keeps the primary transceiver sleeping or wakes up by the wake-up receiver according to the indication information according to the indication information.
  • Primary transceiver is a mechanism for the receiving end device to wake up the main transceiver at the TWT by using the wake-up receiver; the receiving end device receives indication information, where the indication information is used to indicate the receiving end.
  • the receiving device instructs the receiving device to use the determined wake-up mechanism to wake up the primary transceiver, so that the sending device and the receiving device can negotiate and flexibly schedule at any time. Wake up mechanism.
  • a fourth aspect provides a wake-up method, where the method is performed by a source device, where the method includes: the source device receives a data frame, where the data frame is used to indicate that the receiver device supports the first wake-up mechanism and the second a wake-up mechanism, the first wake-up mechanism is a mechanism for determining, according to the wake-up packet WUP, whether the TWT primary transceiver remains dormant at the target wake-up time, the second wake-up mechanism is that the receiving device directly wakes up the receiver through the wake-up receiver in the TWT a mechanism of the transceiver, the receiving end device includes a main transceiver and a wake-up receiver; the transmitting end device sends indication information to the receiving end device, where the indication information is used to indicate that the receiving end device adopts the a mechanism of a wake-up mechanism and the second wake-up mechanism, so that the receiving end device keeps the primary transceiver to sleep or wakes up the main transceiver through the wake-up receiver according to the
  • the fifth aspect provides a receiving end device, where the receiving end device includes a main transceiver module, a wake-up receiving module, and an obtaining module.
  • the acquiring module is configured to acquire a target wake-up time TWT
  • the wake-up receiving module is configured to: Receiving a wakeup packet WUP before the TWT; the wakeup receiving module is further configured to receive according to a target carried by the WUP End device information, keeping the main transceiver module asleep at the TWT or waking up the main transceiver module at the TWT.
  • the awake receiving module is specifically configured to: if the target receiving device information does not include the identifier ID of the receiving device, or does not include the receiving The group ID of the group to which the end device belongs, and the receiving end device keeps the main transceiver module to sleep at the TWT.
  • the awake receiving module is specifically configured to: if the target receiving end device information includes the ID of the receiving end device or include The group ID of the group to which the receiving end device belongs, the receiving end device wakes up the main transceiver module through the WUR at the TWT.
  • the wake-up receiving module is specifically configured to receive the WUP in a [T1, T2] time period, where T1 and T2 are time.
  • the acquiring unit is further configured to acquire first indication information, where the first indication information is used to indicate that the receiving end device adopts Determining, according to the WUP, whether the primary transceiver module in the TWT remains dormant.
  • the primary transceiver module is specifically configured to send a TWT request message to the sending end device of the access point, and receive the sending end device according to the The TWT request message is fed back by the TWT request message; wherein the TWT request message or the TWT response message includes indication information.
  • the primary transceiver module is specifically configured to send a TWT request message to the sending end device of the access point, and receive the sending end device according to the The TWT request message is fed back by the TWT request message, and receives the second indication information, where the second indication information is used to indicate that the receiving end device determines whether the primary transceiver module in the TWT remains dormant according to the WUP.
  • the primary transceiver is specifically configured to send a data frame to the sending end device, where the data frame is used to indicate the receiving end device Supporting, according to the WUP, determining whether the primary transceiver module in the TWT remains dormant.
  • the MAC frame header of the data frame carries an operation mode indication OMI, where the OMI includes The WUP determines whether the primary transceiver module of the TWT remains dormant.
  • the data frame includes a high-efficiency aggregation field, where the high-efficiency aggregation field includes a TWT scheduling support indication field, and the TWT scheduling support indication field And configured to indicate that the receiving end device supports determining, according to the WUP, whether the primary transceiver module in the TWT remains dormant.
  • the respective units/modules of the receiving end device and the functions thereof may correspond to the awake method of the first aspect, and the respective units/modules in the device may implement corresponding processes of the method.
  • the respective units/modules in the device may implement corresponding processes of the method.
  • the sixth aspect provides a sending end device, where the sending end device includes a sending module, where the sending module is configured to send a wake-up packet WUP to the receiving end device before the target wake-up time TWT, where the receiving end device includes a main a transceiver and a wake-up receiver WUR, wherein the WUP is used by the receiving end device to keep the main transceiver to sleep according to the target receiving device information carried by the WUP or to wake up through the WUR in the TWT The main transceiver.
  • the WUP is specifically configured to instruct the receiving end device to keep the main transceiver from sleeping in the TWT.
  • the receiving device information includes an ID of the receiving device or a group ID including a group to which the receiving device belongs, and the WUP is specifically configured to instruct the receiving device to wake the main transceiver through the WUR at the TWT. .
  • the sending module is specifically configured to send, by using the WUR, the receiving device to the receiving end device in a [T1, T2] time period. WUP, where T1 and T2 are time.
  • the sending end device further includes an acquiring module, where the acquiring module is configured to acquire first indication information, where the first indication information is And configured to indicate, by the receiving end device, whether the primary transceiver is kept dormant at the TWT according to the WUP.
  • the sending end device further includes a receiving module, where the receiving module is configured to receive the receiving end device by using the main transceiver a sending TWT request message; the sending module is further configured to send a TWT response message to the primary transceiver of the receiving device according to the TWT request message, where the TWT request message or the TWT response message includes indication information .
  • the sending end device further includes a receiving module, where the receiving module is configured to receive the receiving end device by using the main transceiver Transmitting a TWT request message; the sending module is further configured to send a TWT response message to the primary transceiver of the receiving end device according to the TWT request message, and send second indication information to the receiving end device, where the The second indication information is used to indicate that the receiving end device determines whether the primary transceiver remains dormant in the TWT according to the WUP.
  • the receiving module is further configured to receive a data frame sent by the receiving end device, where the data frame is used to indicate the receiving
  • the end device supports determining, according to the WUP, whether the primary transceiver remains dormant at the TWT.
  • the MAC frame header of the data frame carries an operation mode indication OMI, where the OMI includes The WUP determines whether the primary transceiver of the TWT remains dormant.
  • the data frame includes a high-efficiency aggregation field, where the high-efficiency aggregation field includes a TWT scheduling support indication field, and the TWT scheduling support indication field And configured to indicate that the receiving end device supports determining, according to the WUP, whether the primary transceiver remains dormant in the TWT.
  • the respective units/modules of the transmitting device and the functions thereof may correspond to the awake method of the second aspect, and the respective units/modules in the device may implement corresponding processes of the method.
  • the respective units/modules in the device may implement corresponding processes of the method.
  • a receiving end device includes a main transceiver, a wakeup receiver WUR, and a processor; wherein the processor is configured to acquire a target wake time TWT; the WUR is used in the The wake-up packet WUP is received before the TWT; the WUR is further configured to keep the main transceiver to sleep or wake the main transceiver at the TWT according to the target receiving device information carried by the WUP.
  • the WUR is specifically used to: if the target receiving device information does not include the identifier ID of the receiving device, or does not include the receiving device The group ID of the group to which the master transceiver is hibernated at the TWT.
  • the WUR is specifically used to: if the target receiving end device information includes the ID of the receiving end device or include the receiving The group ID of the group to which the end device belongs, wakes up the main transceiver at the TWT.
  • the WUR is specifically configured to receive the WUP in a [T1, T2] time period, where T1 and T2 are times.
  • the processor is further configured to acquire the first indication information, where the first indication information is used to indicate that the receiving end device adopts Determining, according to the WUP, whether the primary transceiver remains dormant at the TWT.
  • the primary transceiver is further configured to send a TWT request message to the sending end device of the access point, and receive the sending end device according to the The TWT response message fed back by the TWT request message, where the TWT request message or the TWT response message includes indication information.
  • the primary transceiver is further configured to send a TWT request message to the sending end device of the access point, and receive the sending end device according to the The TWT response message is sent by the TWT request message, and receives the second indication information, where the second indication information is used to indicate that the receiving end device determines whether the primary transceiver remains dormant in the TWT according to the WUP.
  • the primary transceiver is configured to send a data frame to the sending end device, where the data frame is used to indicate that the receiving end device supports Determining, according to the WUP, whether the primary transceiver remains dormant at the TWT.
  • the MAC frame header of the data frame carries an operation mode indication OMI, where the OMI includes The WUP determines whether the primary transceiver of the TWT remains dormant.
  • the data frame includes a high-efficiency aggregation field, where the high-efficiency aggregation field includes a TWT scheduling support indication field, and the TWT scheduling support indication field And configured to indicate that the receiving end device supports determining, according to the WUP, whether the primary transceiver remains dormant in the TWT.
  • the respective units/modules of the receiving end device and the functions thereof may correspond to the awake method of the first aspect, and the respective units/modules in the device may implement corresponding processes of the method.
  • the respective units/modules in the device may implement corresponding processes of the method.
  • a transmitting device comprising: a transmitter, configured to send a wake-up packet WUP to a receiving device, where the receiving device includes a primary transceiver and a wake-up receiver, WUR, before the target wake-up time TWT,
  • the WUP is used by the receiving end device to keep the main transceiver from sleeping in the TWT or to wake up the main transceiver through the WUR in the TWT according to the target receiving device information carried by the WUP.
  • the WUP is specifically configured to instruct the receiving end device to keep the main transceiver from sleeping in the TWT.
  • the WUP is specifically configured to instruct the receiving end device to wake up the main transceiver by using the WUR at the TWT.
  • the transmitter is specifically configured to send the WUP to the receiving end device in a [T1, T2] time period, where T1 and T2 are time.
  • the sending end device further includes a processor, where the processor is configured to acquire first indication information, where the first indication information is used by Instructing the receiving end device to determine whether the primary transceiver remains dormant in the TWT according to the WUP.
  • the sending end device further includes a receiver, where the receiver is configured to receive the receiving end device by using the main a TWT request message sent by the transceiver; the transmitter is further configured to send a TWT response message to the primary transceiver of the receiving device according to the TWT request message; the TWT request message or the TWT response message includes indication information .
  • the sending end device further includes a receiver, where the receiver is configured to receive the receiving end device by using the main transceiver Transmitting a TWT request message; the transmitter is further configured to send a TWT response message to the primary transceiver of the receiving device according to the TWT request message, and send second indication information to the receiving device, where The second indication information is used to indicate that the receiving end device determines whether the primary transceiver remains dormant in the TWT according to the WUP.
  • the sending end device further includes a receiver, where the receiver is configured to receive a data frame sent by the receiving end device, where The data frame is used to indicate that the receiving end device supports determining whether the primary transceiver remains dormant in the TWT according to the WUP.
  • the MAC frame header of the data frame carries an operation mode indication OMI, where the OMI includes The WUP determines whether the primary transceiver of the TWT remains dormant.
  • the data frame includes a high-efficiency aggregation field, where the high-efficiency aggregation field includes a TWT scheduling support indication field, and the TWT scheduling support indication field And configured to indicate that the receiving end device supports determining, according to the WUP, whether the primary transceiver remains dormant in the TWT.
  • the respective units/modules of the transmitting end device and the functions thereof may correspond to the awake method of the second aspect, and the respective units/modules in the device may implement corresponding processes of the method.
  • the respective units/modules in the device may implement corresponding processes of the method.
  • FIG. 1 is a schematic diagram of an application scenario of a communication system to which an embodiment of the present application is applicable.
  • FIG. 2 is a schematic diagram of the steps of an existing wake-up method.
  • 3 is a schematic diagram of the steps of another conventional wake-up method.
  • FIG. 4 is a schematic interaction diagram of a wake-up method according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a wake-up method according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a wake-up method according to another embodiment of the present application.
  • FIG. 7 is a schematic diagram of a wake-up method according to still another embodiment of the present application.
  • FIG. 8 is a schematic diagram of a wake-up method according to still another embodiment of the present application.
  • FIG. 9 is a schematic diagram of a wake-up method according to still another embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a receiving operation mode indication OMI that can be used in the embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a high efficiency aggregation control field HE-A-Control.
  • FIG. 12 is a schematic diagram of fields added in an efficient aggregate field structure in accordance with an embodiment of the present application.
  • FIG. 13 is a block diagram of a device of a receiving end device according to an embodiment of the present application.
  • FIG. 14 is a block diagram of a device of a transmitting end device according to another embodiment of the present application.
  • FIG. 15 is a block diagram of a device of a receiving end device according to still another embodiment of the present application.
  • FIG. 16 is a block diagram of a device of a transmitting device according to still another embodiment of the present application.
  • FIG. 1 is a schematic diagram of an application scenario of a communication system to which an embodiment of the present application is applicable.
  • the Wireless Local Area Network (WLAN) shown in FIG. 1 includes a transmitting end device (such as the AP shown in FIG. 1) and a receiving end device (such as the STA shown in FIG. 1).
  • the AP is responsible for two-way communication with a plurality of STAs, for example, the AP shown in FIG. 1 transmits downlink data to STAs (for example, STA1 and STA2 in FIG. 1), or the AP receives uplink data from STAs (for example, STA3 in FIG. 1). .
  • STAs for example, STA1 and STA2 in FIG. 1
  • STA3 uplink data from STAs
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the AP may provide an access service for the station, and the AP may be an access point in the WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, or a base station in WCDMA.
  • BTS Base Transceiver Station
  • NodeB which may also be an evolved Node B (eNB or e-NodeB) in LTE. This application does not limit this.
  • the station may be various stations (Stations, STAs) supporting the WLAN communication protocol, or may be terminals in the GSM or CDMA or WCDMA (Terminal), user equipment (User Equipment), and mobile stations (Mobile). Station, MS), mobile terminal, etc., the station can communicate with one or more core networks via a Radio Access Network (RAN), for example, the station can be a mobile phone (or called " Cellular "telephone", smart home, computer with mobile terminal, etc., for example, the station can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges voice and/or data with the wireless access network. .
  • RAN Radio Access Network
  • the receiving device is an AP and the sending device is a STA.
  • FIG. 2 is a schematic diagram of the steps of an existing wake-up method.
  • the single TWT of FIG. 2 is exemplified by taking the sending device as the AP and the receiving device as the STA.
  • Step 1 The STA sends a TWT request message to the AP.
  • Step 2 The AP sends a TWT response message to the STA.
  • the AP receives the TWT request message sent by the STA, and sends a TWT response message to the STA according to the TWT request message.
  • the TWT protocol is established between the receiving device and the transmitting device, and the value of the TWT can be determined when the TWT protocol is established.
  • step 3 a trigger (Trigger) frame is sent to the STA at the TWTAP.
  • the STA wakes up in TWT and waits for the scheduling of the trigger frame to prepare for uplink transmission.
  • Step 4 After receiving the trigger frame, the STA feeds back the uplink frame to the AP.
  • the STA may respond to the AP with an uplink frame, such as a Power Save Poll frame or a Data frame, if it is scheduled in the current trigger frame. If it is not scheduled in the current trigger frame, the Cascaded Field value of the trigger frame is 1, that is, there are other trigger frames after the trigger frame, otherwise the sleep mode can be performed.
  • an uplink frame such as a Power Save Poll frame or a Data frame
  • step 5 the AP sends an acknowledgement frame to the STA.
  • the AP may send a Multi-user Block Acknowledge (M-BA) frame to the STA to confirm the STA.
  • M-BA Multi-user Block Acknowledge
  • the STA may also be triggered to confirm using a Block Acknowledge (BA) frame.
  • DL Data Transmission downlink data transmission
  • BA Block Acknowledge
  • FIG. 2 above shows the flow diagram when the STA needs to wake up or say that the STA has a polling frame or a data frame needs to be transmitted. If the STA scheduled by the AP does not need to wake up, for example, there is no polling frame or data frame between the STA and the AP, and the STA wakes up wasting energy.
  • FIG. 3 is a schematic diagram of the steps of another conventional wake-up method.
  • the broadcast TWT of FIG. 3 is exemplified by taking the transmitting device as an AP and the receiving device as an STA, including STA1 and STA2.
  • Step 1 STA1 sends a TWT request message to the AP, and the AP receives the TWT request message.
  • Step 2 The AP sends a TWT response message to STA1, and STA1 receives the TWT response message.
  • the AP receives the TWT request message sent by STA1, and sends a TWT response message to STA1 according to the TWT request message.
  • the TWT protocol is established between the receiving device and the transmitting device.
  • the STA1 negotiates with the AP to wake up the TBTT and the interval to be listened to.
  • the listening interval is the TWT scheduling STA1 needs to maintain.
  • the time interval in which the wake-up state receives the beacon frame.
  • the TWT field of the TWT element (Element, IE) is set to the first TBTT by negotiation.
  • Step 3 The AP sends a Beacon frame to the STA (including STA1 and STA2), and the STA receives the beacon frame sent by the AP.
  • the TWT scheduling STA can enter the sleep mode. All TWT scheduling STAs wake up at the first TBTT time point of the negotiation to receive the Beacon frame sent by the AP.
  • the beacon frame carries the TWT element to set the broadcast TWT parameter. For example, the beacon frame carries the transmission trigger frame.
  • the target wake-up time TWT1 and the target wake-up time TWT2 of the Multi-User Physical Layer Protocol Data Unit (MU PPDU) are transmitted.
  • MU PPDU Multi-User Physical Layer Protocol Data Unit
  • Step 4 The AP sends a trigger frame to the STA, and the STA receives the trigger frame sent by the AP.
  • the STA may enter the sleep mode again, and wake up to wait for the communication at the TWT1 time point indicated in the beacon frame. For example, at time TWT1, the AP sends a trigger frame to the STA, and the STA wakes up to receive the AP. Trigger frame. This step is similar to step 3 of FIG. 2 and will not be described in detail herein.
  • Step 5 After receiving the trigger frame, the STA feeds back the uplink frame to the AP, and the AP receives the uplink frame.
  • the upstream frame may be the polling frame shown in FIG.
  • step 6 the AP sends an acknowledgement (M-BA) frame to the STA, and the STA receives the acknowledgement frame.
  • M-BA acknowledgement
  • the AP sends an acknowledgement frame to the STA to acknowledge receipt of the poll frame sent by the STA.
  • step 7 the AP sends a MU PPDU to the STA, and the STA receives the MU PPDU.
  • the AP sends a MU PPDU to the STA, and the STA wakes up to wait for communication, that is, the STA wakes up to receive the MU PPDU sent by the AP.
  • step 8 the STA sends an acknowledgement (BA) frame to the AP, and the AP receives the acknowledgement frame.
  • BA acknowledgement
  • the STA sends an acknowledgement frame to the AP, indicating that the MU PPDU sent by the AP has been received.
  • Figure 3 above shows the flow diagram when the STA needs to wake up, or the STA has a polling frame or a data frame to transmit. If the STA scheduled by the AP does not need to wake up, for example, there is no polling frame or data frame between the STA and the AP, and the STA wakes up wasting energy. Also, the STAs scheduled in the broadcast TWT may not have the need to communicate to transmit data, and these STAs are awake in the broadcast TWT to be scheduled not only wasting energy but also wasting channel resources.
  • the receiving end device may be an STA
  • the sending end device is an AP
  • the receiving end device may be an AP
  • the sending end device is an STA.
  • the specific example of the present application is described by taking the receiving device as the STA and the sending device as the AP.
  • FIG. 4 is a schematic interaction diagram of a wake-up method according to an embodiment of the present application.
  • the communication system of FIG. 4 includes a transmitting device and a receiving device, and the receiving device is composed of a wake-up receiver and a main transceiver.
  • the sender device acquires a TWT.
  • the receiving end device acquires the TWT through the primary transceiver.
  • Step 101 and step 102 The sending end device and the receiving end device acquire the TWT, and the receiving end device and the sending end device negotiate the value of the TWT when establishing the TWT protocol.
  • the TWT value may be sent by the sending end device directly to the receiving end device, or may be determined by the receiving end device to send the TWT value to the sending end device, and the receiving end device and the transmitting end device may negotiate to determine the value of the TWT.
  • the value of the TWT can be determined in the following manner: the STA sends a TWT request message to the AP, and the AP receives the TWT request message sent by the STA, and sends a TWT response message to the STA according to the TWT request message, and the receiving end device
  • the TWT protocol is established between the device and the sender device, and the value of the TWT is determined when the TWT protocol is established.
  • the value of the TWT can be determined in the following manner: the STA can wake up to receive the beacon frame in the agreed TBTT, and the beacon frame can carry the value of the broadcast TWT, and the value of the TWT can be multiple.
  • the value of the TWT may include TWT1 that transmits the trigger frame and TWT2 that sends the MU PPDU.
  • the receiving end device and the transmitting end device may negotiate to determine whether the WUP is required to assist the wake-up mechanism of the primary transceiver of the receiving end device.
  • the receiving end device may obtain indication information, where the indication information is used to indicate that the receiving end device adopts a mechanism for determining whether the TWT primary transceiver remains dormant according to the WUP.
  • the indication information may be included in the TWT request message, may also be included in the TWT response message, or may be determined by the receiving end device and the sending end device.
  • the indication message is carried in other messages during the establishment of the TWT protocol.
  • the receiving end device and the transmitting end device separately transmit or negotiate the indication message by using signaling.
  • the receiving end device and the transmitting end device wake up the main transceiver of the receiving end device by using the wakeup process of FIG. 4, it is required to establish that the receiving end device supports determining whether the TWT main transceiver remains dormant according to the WUP. mechanism.
  • the receiving end device may send a data frame to the sending end device, where the data frame is used to indicate that the receiving end device supports determining, according to the WUP, whether the TWT primary transceiver remains dormant. .
  • This indication can be indicated by multiplexing existing fields of the data frame, or by efficient aggregation. The field redesigns the field for indication.
  • the receiving end device may send a data frame to the sending end device, where the data frame may be used to indicate that the receiving end device supports an existing wake-up mechanism that wakes up the main transceiver at the TWT wake-up receiver.
  • the MAC frame header of the data frame carries an operation mode indication OMI field
  • the OMI field includes a bit for indicating that the receiving end device supports determining whether the TWT primary transceiver remains dormant according to the WUP.
  • the OMI in the 802.11ax allows the STA to dynamically adjust the appropriate number of receiving antennas and the channel bandwidth to receive subsequent PPDU frames.
  • the OMI can be identified in the MAC frame header of the data frame, etc., so that the management layer can be used to improve the MAC layer. effectiveness.
  • the reserved bits in the OMI can be used to further indicate whether the TWT mechanism is supported, or the reserved bits in the OMI can be used to further indicate whether the TWT mechanism combined with the WUP is supported.
  • the schematic diagram of the OMI is as shown in FIG. 10.
  • the TWT scheduling field is set to 1, indicating that the STA supports the TWT and the WUP determination mechanism at this time, and can be Scheduling; when the STA does not have a transmission request at the current or the next time, the TWT scheduling field is set to 0, indicating that the STA does not support the judgment mechanism of the TWT combined with the WUP at this time, and cannot be scheduled.
  • the OMI field carried by the MAC frame header of the data frame may also be used to indicate that the receiving end device supports determining, according to the WUP, whether the TWT needs to wake up the bit of the primary transceiver.
  • the data frame includes a high-efficiency aggregation field, and the high-efficiency aggregation field includes a TWT scheduling support indication field, and the TWT scheduling support indication field is used to indicate that the receiving end device supports determining whether the TWT primary transceiver remains dormant according to the WUP.
  • the TWT scheduling support indication information is carried in the High Efficient Aggregated Control (HE-A-control) field of the High Throughput Control (HT-control) field.
  • the HE-A-control field can carry different control information through different control identifiers (control IDs), as shown in FIG. A new control identifier may be used in the control field to indicate that the HE-A-control carries information about the TWT scheduling support indication.
  • the TWT scheduling support indication field is set to 1, indicating that the STA supports the TWT to be scheduled at this time, and can be broadcasted by the TWT.
  • the TWT scheduling support indication field is set to 0, indicating that the STA does not support the judgment mechanism of the TWT combined with the WUP at this time, and cannot be scheduled.
  • Step 102 is an optional step.
  • the sending end device may also acquire the wake-up packet WUP before step 103.
  • the sending end device sends the wake-up packet WUP to the receiving end device, and the receiving end device receives the WUP by waking up the receiver.
  • the embodiment of the present application can determine whether the primary transceiver of the receiving end device needs to be woken up by using the WUP, for example, determining whether the main transceiver needs to be woken up according to the information of the target receiving end device carried by the WUP.
  • the target receiving device information carried by the WUP may be an ID of the receiving device.
  • the target receiving device information may also be a group ID, or may be Other information carried by the WUP to determine if the primary transceiver is to be woken up.
  • the information carried by the WUP includes the ID of STA1 or the group ID of STA1, it indicates that the STA1 primary transceiver needs to be woken up.
  • the information carried by the WUP does not include the ID of the STA2 or the group ID of the STA2, it means that the STA2 main transceiver does not need to be woken up.
  • the receiving device When the receiving device has communication requirements, it needs to wake up the primary transceiver of the receiving device.
  • the transmitting device has a downlink data frame, a control frame, a trigger frame, and the like, and needs to be transmitted to the receiving device, or the receiving device has an uplink data frame.
  • a polling frame or the like needs to be transmitted to the transmitting device, it is necessary to wake up the primary transceiver of the receiving device.
  • the primary transceiver of the receiving device can be kept to sleep, reducing energy loss.
  • the TWT is combined with the WUP. Before the TWT, it is determined by the WUP whether the primary transceiver of the receiving device needs to be woken up, and the TWT mechanism determines the wake-up time as the value of the TWT. In this way, the WUP does not need to wake up the receiving device to stay asleep in the TWT, and the receiving device that needs to wake up wakes up in the TWT, so as to avoid energy loss caused by unnecessary wakeup.
  • the time at which the transmitting device sends the WUP and the time at which the receiving device receives the WUP through the WUR may be a time point, or may be a time period, such as [T1, T2]. Defining a time interval can overcome the WUR drift in time due to inaccuracy in WUR time, and can also satisfy the situation where the AP sends multiple WUPs.
  • T1 T2.
  • [T1, T2] is the target time. If the WUP is not received within the target time period, it may be considered that the WUP is not received, or may wait for a preset duration, or the expiration time may be additionally defined.
  • the wake-up receiver does not need to wake up the main transceiver, and the main transceiver can maintain the sleep mode.
  • the time for sending the WUP may be indicated by the AP in the process of negotiating the TWT protocol, or may be indicated in the beacon frame, and may also be specified as a fixed value by the standard. This is not a limitation.
  • the receiving device and the transmitting device can obtain the time for transmitting the WUP, so that the receiving device turns on the WUR at this time to prepare to receive the WUP. Since the STA can acquire the time for sending the WUP, the WUR can sleep before the time period, further saving the power consumption of the WUR. In this way, STAs that would otherwise wake up in the TWT but are not scheduled during the TWT service period can remain in sleep mode, reducing power consumption.
  • the time for transmitting the WUP may be an absolute value of time or a relative value of time.
  • the start and end times T1 and T2 of the time period in which the WUP is transmitted are relative values with respect to the TWT.
  • the receiving device wakes up the main transceiver according to the wake-up packet by the wake-up receiver or keeps the main transceiver from sleeping.
  • the wake-up receiver of STA1 wakes up the main transceiver of STA1 at the TWT.
  • the wake-up receiver of STA2 keeps STA2's main transceiver dormant at the TWT. In this way, STA2, which does not need to wake up, can avoid unnecessary wake-up and can reduce energy loss.
  • the embodiment of the present application determines whether the primary transceiver of the receiving device needs to be woken up according to the WUP before the TWT, so that the primary transceiver of the receiving terminal device that does not need to wake up keeps sleeping in the TWT, and the receiving terminal device needs to wake up through the primary transceiver. Wake up to receive the schedule, which enables reasonable scheduling of sleep and wake-up of the receiving device.
  • the transmitting end device in FIG. 4 is an AP
  • the receiving end device is an STA
  • the STA is composed of a main circuit and a wake-up receiver.
  • FIG. 5 is a schematic diagram of a wake-up method according to an embodiment of the present application.
  • the communication system of the wake-up method shown in FIG. 5 may include an AP and an STA, wherein the STA is composed of a primary transceiver MR and a wake-up receiver WUR.
  • Step 1 The STA sends a TWT request message to the AP through the MR, and the AP receives the TWT request message.
  • the TWT request message is transmitted between the AP and the MR.
  • the WUR can be in the sleep mode, and the MR is the wake mode. formula.
  • Step 2 The AP sends a TWT response message to the STA, and the STA receives the TWT response message through the MR.
  • the TWT request message is transmitted between the AP and the MR.
  • the WUR can be in the sleep mode and the MR is the awake mode.
  • the TWT protocol can be established between the receiving device and the transmitting device through the TWT request message and the TWT response message, and the value of the TWT is determined.
  • the MR of the STA can wake up to receive data frames, control frames, management frames, and the like transmitted by the AP in the TWT.
  • Step 3 Before the TWT, the AP sends a WUP to the STA, and the STA receives the WUP through the WUR.
  • the transmission time of WUP is [T1, T2], and T1 and T2 can be the same or different.
  • the WUP is transmitted between the AP and the WUR before the TWT. During this time, the WUR wakes up to receive the WUP, that is, the WUR is in the awake mode, and the MR can be in the sleep mode.
  • the STA's wake-up receiver needs to wake up the main transceiver at the TWT.
  • Step 4 In the TWT, the AP sends a Trigger (TF) frame to the STA, and the STA receives the trigger frame sent by the AP through the MR.
  • TF Trigger
  • the trigger frame is transmitted between the AP and the MR.
  • the MR is in the awake mode, and the transmission time of the trigger frame is TWT.
  • the TWT is determined and the WUP indicates that the WUR wakes up the MR
  • the MR wakes up in the TWT. WUR can stay dormant during this time.
  • Step 5 The STA sends a Power Save Poll (PS-Poll) or Data (Data) frame to the AP through the MR, and the AP receives the energy-saving poll frame or the data frame.
  • PS-Poll Power Save Poll
  • Data Data
  • the WUR When transmitting an energy-saving polling frame or data frame, the WUR can remain dormant and the MR is in wake-up mode.
  • Step 6 The AP sends an M-BA frame to the STA, and the STA receives the M-BA frame through the MR.
  • WUR When transmitting M-BA frames, WUR can remain dormant and MR is in wake-up mode.
  • Step 7 The STA sends an uplink data transmission frame to the AP through the MR, and the AP receives the uplink data transmission frame.
  • the WUR When transmitting an upstream data transmission frame, the WUR can remain dormant and the MR is in wake-up mode.
  • the time period during which the WUR and MR can be in sleep mode is indicated in FIG.
  • the AP and the STA's main transceiver have a transmission requirement to wake up, and can maintain the sleep mode when there is no transmission requirement, thereby reducing unnecessary wake-up Energy loss.
  • WUR wakes up when receiving WUP, and can remain in sleep mode at other times. This ensures that WUR wakes up to receive wake-up packets at a more accurate time, while other times can be in sleep mode, further reducing energy consumption.
  • FIG. 6 is a schematic diagram of a wake-up method according to another embodiment of the present application.
  • the communication system of the wake-up method shown in FIG. 6 may include an AP and an STA, wherein the STA is composed of a primary transceiver MR and a wake-up receiver WUR.
  • the STA of FIG. 6 differs from the schematic diagram of the wake-up method of FIG. 5 in that the wake-up method of FIG. 6 does not require wake-up.
  • FIG. 7 is a schematic diagram of a wake-up method according to still another embodiment of the present application.
  • the communication system of the wake-up method shown in FIG. 7 may include an AP and three STAs, and the three STAs are STA1, STA2, and STA3, respectively, wherein the STA is composed of a corresponding primary transceiver MR and wake-up receiver WUR.
  • the information carried by WUP2 is used to indicate that STA1 and STA2 do not need to be woken up, and STA3 needs to be woken up.
  • ON indicates the wake-up mode
  • OFF indicates the sleep mode.
  • the WUR of STA3 needs to be in the awake mode when transmitting WUP2, and can maintain the sleep mode or the awake mode when transmitting WUP1.
  • the AP and the STA can negotiate the target wake-up time of different WUPs when establishing the TWT protocol, so that the STA3 does not detect its own identifier at the target wake-up time of the WUP1, and the WUR of the STA3 can be kept in the sleep mode, and then wake up when the WUP2 is transmitted. It is also possible to maintain the wake-up mode until WUP2 is received (as shown in Figure 7).
  • the WUR of STA1 and STA2 can be in wake-up mode or in sleep mode when transmitting WUP2.
  • FIG. 5 to FIG. 7 show a single TWT mechanism, that is, the AP in FIG. 5 to FIG. 7 is used to schedule a single STA.
  • the broadcast TWT mechanism will be described below with reference to FIG. 8 to FIG. 12, that is, the AP can simultaneously schedule multiple STA transmission requirements.
  • FIG. 8 is a schematic diagram of a wake-up method according to still another embodiment of the present application.
  • the communication system of the awake method shown in FIG. 8 may include an AP and three STAs, and the three STAs are STA1, STA2, and STA3, respectively, wherein the STA is composed of a corresponding primary transceiver MR and a wakeup receiver WUR, that is, three STAs.
  • STA1 and STA2 are sites that need to be woken up, and STA3 is a site that does not need to be woken up.
  • Step 1 STA1 sends a TWT request message to the AP through MR1, and the AP receives the TWT request message.
  • the TWT request message is transmitted between the AP and the MR1.
  • the WUR1 may be in the sleep mode
  • the MR1 is the awake mode
  • the STA2 and the STA3 are not involved in the transmission of the TWT request message, and the STA2 and the STA3 may remain in the sleep mode.
  • Step 2 The AP sends a TWT response message to STA1, and STA1 receives the TWT response message through the MR.
  • the TWT response message is transmitted between the AP and MR1.
  • WUR1 can be in sleep mode and MR1 is in wake mode.
  • STA2 and STA3 are not involved in the transmission of the TWT response message, and STA2 and STA3 can remain in the sleep mode during this period.
  • the AP and the STA may establish a TWT protocol through the TWT request message and the TWT response message to determine the value of the TWT.
  • the MR of the STA can wake up to receive data frames, control frames, management frames, and the like transmitted by the AP in the TWT.
  • the TWT may be one or more.
  • the TWT in FIG. 8 may include TWT1 and TWT2, where TWT1 may be a time to transmit a Trigger frame, and TWT2 may be a time to transmit a DL MU PPDU.
  • the STA can negotiate the transmission time TBTT and the listening time of the target beacon frame with the AP.
  • Step 3 The AP sends a Beacon frame to the STA, and the three STAs receive the beacon frame through the corresponding MRs.
  • the beacon frame is transmitted between the AP and the MR, and MR1, MR2, and MR3 are in the awake mode during the time period in which the beacon frame is transmitted, and WUR1, WUR2, and WUR3 may be in the sleep mode during the period in which the beacon frame is transmitted.
  • the beacon frame may carry a TWT IE, and the TWT IE may include an NDP Paging field field carrying a T1 value and a T2 value.
  • the NDP Paging field is 4 bytes, the first two bytes carry the T1 value, and the last two bytes carry the value of T2 in microseconds.
  • the time range of T1, T2 can be (0, 65 536) microseconds.
  • Step 4 Before TWT1, the AP sends WUP1 to the STA, and the STA receives WUP1 through the WUR.
  • the transmission time of WUR is [T1, T2], and T1 and T2 can be the same or different.
  • T1 and T2 may be relative values of TWT1 or may be relative values of TBTT.
  • WUP1 is transmitted between the AP and the WUR before the TWT, during which WUR1, WUR2, and WUR3 wake up to receive WUP1, that is, the WUR is in the awake mode, and MR1, MR2, and MR3 can be in the sleep mode.
  • Step 5 In the TWT, the AP sends a Trigger (TF) frame to the STA, and the STA receives the trigger frame sent by the AP through the MR.
  • TF Trigger
  • the trigger frame is transmitted between the AP and the MR.
  • MR1, MR2, and MR3 are in the awake mode, and the transmission time of the trigger frame is the TWT1 time.
  • the TWT1 is determined and the WUP indicates that the WUR wakes up the MR, the MR1 and the MR2 wake up in the TWT. Since STA3 has no transmission requirements, for example, WUP1 does not include the identifier of STA3, and MR3 remains dormant. WUR1, WUR2, and WUR3 can remain dormant during this time.
  • Step 6 The STA sends an uplink energy-saving polling frame UL PS-Poll or an uplink data frame to the AP through the MR, and the AP receives the uplink energy-saving polling frame or the uplink data frame.
  • WUR1, WUR2, and WUR3 can remain dormant, and MR1 and MR2 are in the awake mode. Since STA3 has no transmission requirement, MR3 remains dormant.
  • step 7 the AP sends an M-BA frame to the STA, and the STA receives the M-BA frame through the MR.
  • WUR1, WUR2, and WUR3 can remain dormant, MR1, and MR2 are in wake-up mode, and MR3 remains dormant.
  • Step 8 Before TWT2, the AP sends WUP2 to the STA, and the STA receives WUP2 through the WUR.
  • T3 and T4 can be the same or different.
  • T3 and T4 may be relative values of TWT2 or may be relative values of TBTT.
  • WUP2 is transmitted between the AP and WUR before TWT2, during which WUR1, WUR2 and WUR3 wake up to receive WUP2, ie WUR is in wake-up mode, while MR1, MR2 and MR3 can be in sleep mode.
  • Step 9 At the time of TWT2, the STA sends an uplink data transmission frame to the AP through the MR, and the AP receives the uplink data transmission frame.
  • WUR1, WUR2 and WUR3 can remain dormant, MR1 and MR2 are in wake-up mode, STA3 has no transmission requirement, and MR3 remains dormant.
  • Step 10 The STA that receives the uplink multi-user PPDU sends an acknowledgement (BA) frame to the AP, indicating that the transmitted uplink multi-user PPDU frame has been received.
  • BA acknowledgement
  • WUR1, WUR2, and WUR3 can remain dormant, MR1 and MR2 are in wake-up mode, STA3 does not transmit data, and MR3 remains dormant.
  • the time period in which three WURs and three MRs can be in sleep mode is indicated in FIG.
  • the STA's main transceiver wakes up when there is a transmission demand, and can maintain the sleep mode when there is no transmission requirement, which can reduce the energy loss caused by unnecessary wake-up.
  • WUR wakes up when receiving WUP, and can remain in sleep mode at other times. This ensures that WUR wakes up to receive wake-up packets at a more accurate time, while other times can be in sleep mode, further reducing energy consumption.
  • FIG. 9 is a schematic diagram of a wake-up method according to still another embodiment of the present application.
  • the communication system of the wake-up method shown in FIG. 9 may include an AP and three STAs, and the three STAs are STA1, STA2, and STA3, respectively, wherein the STA is composed of a corresponding primary transceiver MR and wake-up receiver WUR.
  • the information carried by WUP1 and WUP2 in the embodiment of the present application is used to indicate that STA1 and STA2 are sites that need to wake up, and STA3 is a site that does not need to wake up.
  • ON indicates the wake-up mode
  • OFF indicates the sleep mode.
  • the AP and the STA may agree to send the WUP1 before the TBTT, where the WUP1 is used to indicate that the STA that needs to wake up the beacon frame needs to be awake at the TBTT time, as shown in FIG. 9.
  • FIG. 10 is a schematic structural diagram of a receiving operation mode indication OMI that can be used in the embodiment of the present application.
  • the MAC frame in 802.11ax includes OMI.
  • the OMI includes a Receiver Number of Spatial Stream (NSS) field, a Receiver Channel Width field, a TWT Scheduling Field, and a To Be Decided (TBD) field.
  • the OMI allows the STA to dynamically adjust the number of suitable receiving antennas and the channel bandwidth to receive subsequent PPDU frames.
  • the OMI can be identified in the MAC header of the data frame, etc., and the transmission efficiency of the MAC layer can be improved relative to the management frame alone. There are 2 reserved bits in the OMI, and a reserved bit in the OMI can be used to further indicate whether TWT scheduling is supported.
  • the TWT scheduling domain is set to 1, indicating that the STA supports TWT scheduling at this time, and can be broadcasted by the TWT. If the STA does not have data demand at the current or next time, the TWT scheduling field is set to 0, indicating that the STA does not support TWT scheduling at this time, and cannot be scheduled by the broadcast TWT.
  • FIG. 11 is a schematic structural diagram of a high efficiency aggregation control field HE-A-Control.
  • the MAC frame includes a High Efficient Aggregated Control (HE-A-Control) field.
  • the HE-A-Control field includes a very high throughput rate field, an efficient field, and an Aggregated Control field.
  • the aggregation control field includes a plurality of control (Control 1 - Control N) fields and a Padding field, and each control field includes a control identification field and a Control Info field.
  • the numbers in parentheses in Fig. 11 indicate the number of bits occupied by the field.
  • a new control ID is used to indicate that the newly added control information is TWT scheduling support indication information.
  • the numbers in parentheses in the figure are the number of bits in the corresponding field. If the STA has data transmission requirements at the current or the next time, the TWT scheduling support indication field is set to 1, indicating that the STA supports TWT scheduling at this time, and can be broadcasted by the TWT. If the STA does not have a data transmission requirement at the current or next time, the TWT scheduling support indication field is set to 0, indicating that the STA does not support TWT scheduling at this time, and cannot be scheduled by the broadcast TWT.
  • FIG. 13 is a block diagram of a device of a receiving end device according to an embodiment of the present application.
  • the receiving device 10 of FIG. 13 includes a main transceiver module 11, a wakeup receiving module 12, and an acquisition module 13.
  • the obtaining module 13 is configured to acquire the target wake-up time TWT.
  • the wake-up receiving module 12 is configured to receive the wake-up packet WUP before the TWT.
  • the wake-up receiving module 12 is further configured to keep the main transceiver module 11 to sleep or wake the main transceiver module 11 at the TWT according to the target receiving device information carried by the WUP.
  • the embodiment of the present application determines whether the primary transceiver of the receiving device needs to be woken up according to the WUP before the TWT, so that the primary transceiver of the receiving terminal device that does not need to wake up keeps sleeping in the TWT, and the receiving terminal device needs to wake up through the primary transceiver. Wake up to receive the schedule, which enables reasonable scheduling of sleep and wake-up of the receiving device.
  • the receiving device in the embodiment of the present application may be a STA, such as a mobile terminal such as a mobile phone, a smart home, or the like.
  • the respective units/modules of the receiving end device and their functions in FIG. 13 may correspond to the wake-up method performed by the receiving end device in FIG. 1 to FIG. 12, and each unit/module in the receiving end device may implement a corresponding process in the wake-up method.
  • each unit/module in the receiving end device may implement a corresponding process in the wake-up method.
  • FIG. 14 is a block diagram of a device of a transmitting end device according to another embodiment of the present application.
  • the transmitting device 20 of FIG. 14 includes a transmitting module 21.
  • the sending module 21 is configured to send the wake-up packet WUP to the receiving end device before the target wake-up time TWT, where the receiving end device comprises a main transceiver and a wake-up receiver WUR.
  • WUP is used by the receiving device to receive according to the target carried by the WUP. End device information, keeping the main transceiver to sleep on the TWT or waking up the main transceiver through the WUR at the TWT.
  • the embodiment of the present application determines whether the primary transceiver of the receiving device needs to be woken up according to the WUP before the TWT, so that the primary transceiver of the receiving terminal device that does not need to wake up keeps sleeping in the TWT, and the receiving terminal device needs to wake up through the primary transceiver. Wake up to receive the schedule, which enables reasonable scheduling of sleep and wake-up of the receiving device.
  • the sending end device 20 may further include a receiving module 22, configured to receive a frame or a message sent by the other end device.
  • the sender device in the embodiment of the present application may be an AP, such as a site, a base station, a router, or the like.
  • the various units/modules of the transmitting device in FIG. 14 and their functions may correspond to the wake-up method performed by the transmitting device in FIG. 1 to FIG. 12, and each unit/module in the transmitting device may implement a corresponding process in the wake-up method.
  • each unit/module in the transmitting device may implement a corresponding process in the wake-up method.
  • FIG. 15 is a block diagram of a device of a receiving end device according to still another embodiment of the present application.
  • the receiving device 30 of FIG. 15 includes a main transceiver 31, a wakeup receiver 32, a processor 33, and a memory 34.
  • the processor 33 is configured to acquire a target wake-up time TWT.
  • the wake-up receiver 32 is used to receive the wake-up packet WUP before the TWT.
  • the wake-up receiver 32 is also used to keep the main transceiver to sleep or to wake up the main transceiver at the TWT according to the target receiving device information carried by the WUP.
  • the embodiment of the present application determines whether the primary transceiver of the receiving device needs to be woken up according to the WUP before the TWT, so that the primary transceiver of the receiving terminal device that does not need to wake up keeps sleeping in the TWT, and the receiving terminal device needs to wake up through the primary transceiver. Wake up to receive the schedule, which enables reasonable scheduling of sleep and wake-up of the receiving device.
  • the processor 33 controls the operation of the transmitting device 30 and can be used to process signals.
  • Memory 34 can include read only memory and random access memory and provides instructions and data to processor 33.
  • the various components of the transmitting device 30 are coupled together by a bus system 35, which in addition to the data bus includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 35 in the figure.
  • the respective units/modules of the receiving end device and their functions in FIG. 15 may correspond to the wake-up method performed by the receiving end device in FIG. 1 to FIG. 12, and each unit/module in the receiving end device may implement a corresponding process in the wake-up method.
  • each unit/module in the receiving end device may implement a corresponding process in the wake-up method.
  • FIG. 16 is a block diagram of a device of a transmitting device according to still another embodiment of the present application.
  • the transmitting device 40 of FIG. 16 includes a transmitter 41, a processor 43, and a memory 44.
  • the transmitter 41 is configured to send the wake-up packet WUP to the receiving end device before the target wake-up time TWT.
  • the receiving device includes a main transceiver and a wake-up receiver WUR.
  • the WUP is used by the receiving end device to keep the main transceiver to sleep according to the target receiving device information carried by the WUP, or to wake up the main transceiver through the WUR at the TWT.
  • the transmitting device further includes a receiver 42.
  • the embodiment of the present application determines whether the primary transceiver of the receiving device needs to be woken up according to the WUP before the TWT, so that the primary transceiver of the receiving terminal device that does not need to wake up keeps sleeping in the TWT, and the receiving terminal device needs to wake up through the primary transceiver. Wake up to receive the schedule, which enables reasonable scheduling of sleep and wake-up of the receiving device.
  • the processor 43 controls the operation of the transmitting device 40 and can be used to process signals.
  • Memory 44 can include read only memory and random access memory and provides instructions and data to processor 43.
  • the various components of the transmitting device 40 are coupled together by a bus system 45, which in addition to the data bus includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 45 in the figure.
  • the respective units/modules of the transmitting device in FIG. 16 and their functions may correspond to the wake-up method performed by the transmitting device in FIG. 1 to FIG. 12, and each unit/module in the transmitting device may implement a corresponding process in the wake-up method.
  • each unit/module in the transmitting device may implement a corresponding process in the wake-up method.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application.
  • the implementation process constitutes any limitation.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the processor in the embodiment of the present application may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or a transistor logic device, a discrete hardware component, and may be implemented or executed.
  • a general purpose processor can be a microprocessor or any conventional processor or the like.
  • RAM random access memory
  • ROM read-only memory
  • EPROM electrically programmable read-only memory
  • EEPROM electrically erasable Electrically Erasable Programmable Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory

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Abstract

L'invention concerne un procédé de réveil, un dispositif d'extrémité de réception et un dispositif d'extrémité d'émission. Le dispositif d'extrémité de réception comprend un émetteur-récepteur principal et un récepteur de réveil (WUR). Le procédé comprend : l'acquisition, par un dispositif d'extrémité de réception, d'un temps de réveil cible (TWT) ; avant le TWT, la réception, par le dispositif d'extrémité de réception, d'un paquet de réveil par l'intermédiaire d'un WUR ; et le maintien, par le dispositif d'extrémité de réception, en fonction d'informations concernant un dispositif d'extrémité de réception cible transportées par le WUR, d'un émetteur-récepteur principal dans un état de sommeil pendant le TWT, ou le réveil de l'émetteur-récepteur principal par l'intermédiaire du WUR pendant le TWT. Les modes de réalisation de la présente invention permettent la planification rationnelle d'un état de réveil et d'un état de sommeil d'un dispositif d'extrémité de réception.
PCT/CN2017/101321 2016-10-12 2017-09-12 Procédé de réveil, dispositif d'extrémité de réception et dispositif d'extrémité d'émission Ceased WO2018068604A1 (fr)

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CN201610891863.1 2016-10-12

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112868256B (zh) * 2018-08-10 2022-10-11 中兴通讯股份有限公司 节能发送技术
US20200053645A1 (en) * 2018-08-10 2020-02-13 Mediatek Inc. User Equipment Group Wake-Up Signal In NB-IoT
US11659486B2 (en) * 2020-02-11 2023-05-23 Mediatek Inc. Wireless communication method with adaptive power control mechanism and associated circuitry within electronic device
CN112566161B (zh) * 2020-12-02 2022-07-15 温州职业技术学院 确定性信道接入条件下的wlan目标唤醒时刻调度方法
WO2023240461A1 (fr) * 2022-06-14 2023-12-21 北京小米移动软件有限公司 Procédé de terminaison de temps de réveil cible (twt), dispositif électronique et support de stockage
EP4654675A1 (fr) * 2023-01-18 2025-11-26 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Procédé de communication sans fil, équipement terminal et dispositif réseau

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1984169A (zh) * 2005-10-06 2007-06-20 美国博通公司 一种移动通信设备及以节能方式运行移动通信设备的方法
CN102056158A (zh) * 2009-10-29 2011-05-11 仁荷大学校产学协力团 无线体域网的网络设备与网络控制设备及其安全唤醒方法
WO2013032139A2 (fr) * 2011-08-27 2013-03-07 Lg Electronics Inc. Procédé et appareil de transmission de trame de radiomessagerie et de trame de réveil
US20130243418A1 (en) * 2012-03-06 2013-09-19 Pmc-Sierra Israel Ltd. Fiber protection and power save with security
CN104756560A (zh) * 2012-10-24 2015-07-01 高通股份有限公司 具有常规ps模式且无ulp的近乎无源接收机(ap不知道该接收机/电路模式)
CN105165074A (zh) * 2013-01-31 2015-12-16 高通股份有限公司 用于针对wlan的低功率唤醒信号及操作的方法和装置
CN105554863A (zh) * 2015-12-11 2016-05-04 上海竞行信息科技有限公司 一种基于寻呼的低功耗通信方法和网络

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9241307B2 (en) * 2012-10-24 2016-01-19 Qualcomm Incorporated Method and apparatus using an ultra low power signal with scheduled power save modes
US9686719B2 (en) * 2013-06-03 2017-06-20 Qualcomm Incorporated Beacon indication target wakeup time (TWT)
US9363752B2 (en) * 2013-12-27 2016-06-07 Qualcomm Incorporated Target wake time flow identification in TWT acknowledgement
US10231182B2 (en) * 2015-03-12 2019-03-12 Intel IP Corporation Techniques for implicit indication of trigger frame start times
CN105813077A (zh) * 2016-04-14 2016-07-27 天津大学 基于802.11ah减少开销降低终端功耗的通信方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1984169A (zh) * 2005-10-06 2007-06-20 美国博通公司 一种移动通信设备及以节能方式运行移动通信设备的方法
CN102056158A (zh) * 2009-10-29 2011-05-11 仁荷大学校产学协力团 无线体域网的网络设备与网络控制设备及其安全唤醒方法
WO2013032139A2 (fr) * 2011-08-27 2013-03-07 Lg Electronics Inc. Procédé et appareil de transmission de trame de radiomessagerie et de trame de réveil
US20130243418A1 (en) * 2012-03-06 2013-09-19 Pmc-Sierra Israel Ltd. Fiber protection and power save with security
CN104756560A (zh) * 2012-10-24 2015-07-01 高通股份有限公司 具有常规ps模式且无ulp的近乎无源接收机(ap不知道该接收机/电路模式)
CN105165074A (zh) * 2013-01-31 2015-12-16 高通股份有限公司 用于针对wlan的低功率唤醒信号及操作的方法和装置
CN105554863A (zh) * 2015-12-11 2016-05-04 上海竞行信息科技有限公司 一种基于寻呼的低功耗通信方法和网络

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