WO2018126859A1 - 一种唤醒方法、装置和系统 - Google Patents

一种唤醒方法、装置和系统 Download PDF

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Publication number
WO2018126859A1
WO2018126859A1 PCT/CN2017/115932 CN2017115932W WO2018126859A1 WO 2018126859 A1 WO2018126859 A1 WO 2018126859A1 CN 2017115932 W CN2017115932 W CN 2017115932W WO 2018126859 A1 WO2018126859 A1 WO 2018126859A1
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WIPO (PCT)
Prior art keywords
frequency resource
wireless device
message
wake
wireless
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PCT/CN2017/115932
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English (en)
French (fr)
Inventor
位宁
吕开颖
孙波
张学林
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中兴通讯股份有限公司
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Publication of WO2018126859A1 publication Critical patent/WO2018126859A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044Arrangements for allocating sub-channels of the transmission path allocation of payload
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This document relates to, but is not limited to, the field of wireless communications, and more particularly to a wake-up method, apparatus and system.
  • IoT Internet of Things
  • IoT devices have spread throughout intelligent transportation, environmental protection, government work, public safety, safe home, intelligent fire protection, industrial monitoring, elderly care, personal health, water system monitoring, Food traceability and many other areas.
  • IoT devices need to work on battery power. In most application scenarios, it is often necessary to replace the battery for months or even years, taking into account factors such as cost, natural environment, and operator demand. This also makes IoT devices have a high-performance power-saving mechanism.
  • the introduction of a separate wake-up receiver (WUR, Wake-up Receiver) module in the IoT device to wake up the main working module in the IoT device will greatly improve the battery (or other energy) of the relevant IoT device.
  • the service life of the source further meets the demanding service life.
  • the embodiment of the invention provides a wake-up method, device and system, which can implement simultaneous sending of wake-up messages and non-waking messages.
  • the embodiment of the invention provides a wake-up method, including:
  • the first wireless device transmits a wireless frame to the one or more second wireless devices and the one or more third wireless devices, respectively;
  • the load of the radio frame carries the wake-up message and the non-waking message, and the wake-up message is allocated on the first frequency resource, and the non-waking message is allocated in the same place as the first frequency resource or the first frequency resource.
  • the frequency resource pool is different on the second frequency resource.
  • the radio frame includes a preamble and a payload; and the sending, by the first wireless device, the radio frame includes:
  • the first wireless device first sends a preamble of the radio frame, and after transmitting the preamble of the radio frame, sends a payload of the radio frame.
  • the preamble bearer of the radio frame serves signaling information of the non-waking message, and a preamble of the radio frame occupies all frequency resources of the radio frame;
  • the method also includes:
  • the first wireless device allocates a corresponding third frequency resource to each of the third wireless devices according to the second frequency resource, and sets location information of a third frequency resource allocated to each of the third wireless devices. In the signaling information.
  • the method further includes:
  • the first wireless device Before the first wireless device transmits a radio frame to one or more second wireless devices and one or more third wireless devices, the first wireless device modulates a preamble of the radio frame using a first modulation technique; The first modulation technique and the second modulation technique collectively modulate a wake-up message in a payload of the radio frame; modulating a non-awake message in the payload of the radio frame using the first modulation technique.
  • the first modulation technique comprises an Orthogonal Frequency Division Multiplexing (OFDM) technique
  • the second modulation technique comprises a simple modulation technique
  • the simple modulation technique comprises any one of the following:
  • the method further includes:
  • the first wireless device allocates a first frequency resource or a frequency resource pool to the wake-up message, and sends location information of the first frequency resource or location information of the frequency resource pool to the second wireless device;
  • the frequency resource pool includes the first frequency resource.
  • the allocating the first frequency resource or the frequency resource pool includes: the first wireless device The first frequency resource or frequency resource pool is allocated to the wakeup message using a multiple access technique.
  • the multiple access technique comprises a frequency division multiple access FDMA technique or an orthogonal frequency division multiple access OFDMA technique.
  • the duration of the wakeup message is equal to the duration of the non-waking message; or the duration of the wakeup message is greater than the duration of the non-waking message; or the duration of the wakeup message is less than the duration of the non-waking message.
  • the main working module of the second wireless device is in a sleep state, and the wake-up receiver WUR module of the second wireless device is in a normal working state; the main working module of the third wireless device is in a normal working state.
  • the method further includes:
  • the first wireless device receives feedback information from the second wireless device
  • the existence of vacant frequency resources between the first frequency resource and the second frequency resource includes:
  • the first frequency resource includes one or more resource units RU;
  • the awake message is allocated on the first frequency resource of the load, and the wake-up message is allocated on each RU of the first frequency resource.
  • the embodiment of the invention further provides a wake-up method, including:
  • the wake-up receiver WUR module of the second wireless device receives the wake-up message at the first frequency resource of the payload of the wireless frame transmitted by the first wireless device;
  • the WUR module of the second wireless device wakes up the main working module of the second wireless device.
  • the method further includes:
  • the first frequency resource determines that it is the target device before waking up the main working module of the second wireless device.
  • the method further includes:
  • the WUR module of the second wireless device receives the location information of the first frequency resource or the location information of the frequency resource pool from the first wireless device; wherein the frequency resource pool includes the first frequency resource;
  • the receiving, by the WUR module of the second wireless device, the wake-up message at the first frequency resource of the payload of the radio frame sent by the first wireless device includes:
  • the WUR module of the second wireless device receives the wake-up message at the first frequency resource according to the received location information of the first frequency resource;
  • the WUR module of the second wireless device receives the wakeup message at the first frequency resource according to the received location information of the frequency resource pool;
  • the WUR module of the second wireless device receives the wake-up message at the first frequency resource according to location information of a first frequency resource set in advance.
  • the receiving, by the WUR module of the second wireless device, the waking message at the first frequency resource according to the received location information of the frequency resource pool includes:
  • the WUR module of the second wireless device determines that the frequency resource in the frequency resource pool is unique, and receives the wake-up message at a frequency resource in the frequency resource pool;
  • the WUR module of the second wireless device determines that the frequency resource in the frequency resource pool is not unique, and searches for the frequency resource in the frequency resource pool where the wake-up message is located by using a frequency-by-frequency resource scanning manner, and Receiving, by the frequency resource, the wakeup message;
  • the main working module includes a main sending module, and the method further includes:
  • the primary sending module of the second wireless device sends feedback information to the first wireless device after being woken up again; wherein the feedback information includes a load of the wireless frame, and the The size of a frequency resource that is vacant between a frequency resource and a second frequency resource carrying a non-awake message.
  • the embodiment of the invention further provides a wake-up method, including:
  • the first wireless device transmits a wireless frame to the one or more second wireless devices and the one or more third wireless devices, respectively;
  • the load of the radio frame carries the wake-up message and the non-waking message, and the wake-up message is allocated on the first frequency resource, and the non-waking message is allocated in the same frequency resource pool as the first frequency resource or the first frequency resource.
  • the wake-up receiver WUR module of the second wireless device receives the wake-up message at the first frequency resource of the payload of the wireless frame sent by the first wireless device, and wakes up the main working module of the second wireless device;
  • the third wireless device receives the wireless frame.
  • the embodiment of the invention further provides a first wireless device, including:
  • a sending module configured to send a wireless frame to one or more second wireless devices and one or more third wireless devices, respectively;
  • the load of the radio frame carries the wake-up message and the non-waking message, and the wake-up message is allocated on the first frequency resource, and the non-waking message is allocated in the same frequency resource pool as the first frequency resource or the first frequency resource. On the second frequency resource.
  • the radio frame includes a preamble and a load; and the sending module is configured to:
  • the preamble bearer of the radio frame serves signaling information of the non-waking message, and a preamble of the radio frame occupies all frequency resources of the radio frame;
  • the first wireless device further includes:
  • An allocating module configured to allocate a corresponding third frequency resource to each of the third wireless devices according to the second frequency resource
  • a setting module configured to set location information of a third frequency resource allocated to each of the third wireless devices in the signaling information.
  • it also includes:
  • a modulation module configured to modulate a preamble of the radio frame using a first modulation technique; jointly modulate a wake-up message in a payload of the radio frame using the first modulation technique and a second modulation technique; using the first modulation technique A non-awake message in the payload of the radio frame is modulated.
  • it also includes:
  • An allocation module configured to allocate the first frequency resource or frequency resource pool to the wakeup message; wherein the frequency resource pool includes the first frequency resource;
  • the sending module is further configured to:
  • the embodiment of the invention further provides a second wireless device, including:
  • the wake-up receiver WUR module is configured to receive a wake-up message at a first frequency resource of a load of the radio frame transmitted by the first wireless device to wake up the main working module of the second wireless device.
  • the WUR module is configured to:
  • the WUR module is configured to:
  • the WUR module is configured to receive the wakeup message at the first frequency resource according to the location information of the frequency resource pool in the following manner:
  • determining that the frequency resource in the frequency resource pool is not unique searching for the frequency resource in the frequency resource pool in which the wake-up message is located by using a frequency-by-frequency resource scanning manner, and receiving the wake-up message at the frequency resource.
  • the method further includes: a main working module; the main working module includes a main sending module;
  • the primary sending module is configured to send feedback information to the first wireless device after being woken up again, wherein the feedback information includes a first frequency of the wireless frame that carries the wake-up message The size of the frequency resource that is vacant between the resource and the second frequency resource carrying the non-awake message.
  • the embodiment of the present invention further provides a wake-up system, including: a first wireless device, a second wireless device, and a third wireless device; wherein, the second wireless device includes a wake-up receiver WUR module and a main working module;
  • the first wireless device is configured to send a wireless frame to one or more second wireless devices and one or more third wireless devices, respectively;
  • the load of the radio frame carries the wake-up message and the non-waking message, and the wake-up message is allocated on the first frequency resource, and the non-waking message is allocated in the same frequency resource pool as the first frequency resource or the first frequency resource.
  • a wake-up receiver WUR module of the second wireless device configured to receive a wake-up message at a first frequency resource of a load of the wireless frame sent by the first wireless device, to wake up the main working module of the second wireless device;
  • a third wireless device configured to receive a wireless frame.
  • Embodiments of the present invention include: a first wireless device transmitting a wireless frame to one or more second wireless devices and one or more third wireless devices, respectively; wherein a load of the wireless frame carries a wake-up message and a non-waking message, and the wake-up message The non-waking message is allocated on the second frequency resource different from the frequency resource pool in which the first frequency resource or the first frequency resource is located.
  • the wake-up message and the non-waking message are carried in the same radio frame, and are sent to the second wireless device and the third wireless device.
  • the operation enables the first wireless device to carry wake-up messages and non-wake messages in the same radio frame using continuous large bandwidth resources for a period of time At the same time, improve the utilization of spectrum resources.
  • FIG. 1 is a flowchart of a wake-up method according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a BSS according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a frame structure of a radio frame according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of still another method for waking up according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of still another method for waking up according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a first wireless device according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a second wireless device according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a wake-up system according to an embodiment of the present invention.
  • an embodiment of the present invention provides a wake-up method, including:
  • Step 100 The first wireless device sends a wireless frame to one or more second wireless devices and one or more third wireless devices, respectively.
  • the load of the radio frame carries the wake-up message and the non-waking message, and the wake-up message is allocated on the first frequency resource, and the non-waking message is allocated in the same frequency resource pool as the first frequency resource or the first frequency resource. On the second frequency resource.
  • the duration of the wake-up message is equal to the duration of the non-waking message; or the duration of the wake-up message is greater than the duration of the non-waking message; or the duration of the wake-up message is less than the duration of the non-waking message.
  • the first wireless device, the second wireless device, and the third wireless device may be any wireless device.
  • the first wireless device in a Basic Service Set (BSS)
  • the first wireless device may be an AP in the BSS
  • the second wireless device may be a dormant site (STA, Station) in the BSS
  • STA, Station dormant site
  • the three wireless devices can be normal working sites in the BSS.
  • the square represents the AP
  • the circle represents the normal working site
  • the x represents the dormant site.
  • the second wireless device and the third wireless device both include a main working module and a WUR module.
  • the second wireless device includes a primary working module and a WUR module;
  • the third wireless device includes only the primary working module.
  • the main working module includes a main sending module and a main receiving module.
  • the main working module and the WUR module are described in detail below.
  • the main working module and the WUR module are included; the third wireless device only It is also within the scope of the present invention to include the main working module.
  • the main working module of the second wireless device is in a sleep state, and the WUR module of the second wireless device is in a normal working state; the main working module of the third wireless device is in a normal working state.
  • the WUR module of the third wireless device can be in a sleep state or a normal working state.
  • the radio frame includes a preamble and a payload.
  • the transmitting, by the first wireless device, the radio frame includes: the first wireless device sends a preamble of the radio frame, and after transmitting the preamble of the radio frame, transmitting the payload of the radio frame.
  • the preamble and load of the radio frame are transmitted in a time division manner.
  • the preamble and load occupy all frequency resources of the radio frame in different time periods.
  • the preamble occupies all the frequency resources of the radio frame, and when the payload is transmitted, the payload occupies all the frequency resources of the radio frame.
  • the preamble bears signaling information of the non-waking message, and the preamble of the radio frame occupies all frequency resources of the radio frame.
  • the preamble also carries training information that serves non-waking messages.
  • the load carries the wake-up message and the non-waking message, and the wake-up message is allocated on the first frequency resource, and the non-waking message is allocated in the second frequency resource different from the frequency resource pool in which the first frequency resource or the first frequency resource is located. on.
  • the non-waking message includes at least one of a service message and other messages of a non-service class.
  • the first frequency resource includes one or more resource units (RUs).
  • RUs resource units
  • the wakeup message is allocated on the first frequency resource of the load including: the wakeup message is allocated on each of the RUs of the first frequency resource.
  • each RU of the first frequency resource carries the same wake-up message.
  • the second wireless device can obtain a wake-up message on any one of the first frequency resources.
  • the method also includes:
  • Step 101 The first wireless device modulates a preamble of the radio frame by using a first modulation technique, and jointly modulates a wakeup message in a payload of the radio frame by using a first modulation technique and a second modulation technique; and modulating the radio frame by using a first modulation technique Non-waking up messages in the payload.
  • the first modulation technique includes OFDM
  • the second modulation technique includes a simple modulation technique.
  • simple modulation techniques include any of the following:
  • On-Off Keying (OOK), ASK (Amplitude Shift Keying), Frequency Shift Keying (FSK), Phase Shift Keying (PSK, Phase Shift Keying), etc.
  • a 3 1, can represent 2 information bits '10';
  • a 4 3, can represent 2 information bits '01'.
  • the modulation combination of OFDM+ASK is essentially the modulation combination of OFDM+OOK.
  • the method also includes:
  • Step 102 The first wireless device allocates a first frequency resource or a frequency resource pool to the wakeup message.
  • the location information of the first frequency resource or the location information of the frequency resource pool is sent to the second wireless device.
  • the frequency resource pool includes a first frequency resource.
  • the first wireless device may use a multiple access technology to allocate a first frequency resource or a frequency resource pool to the wakeup message.
  • the multiple access technology includes an Orthogonal Frequency Division Multiple Access (OFDMA) technology or a Frequency Division Multiple Access (FDMA) technology.
  • OFDMA Orthogonal Frequency Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • the second frequency resource may also be allocated for the non-waking message.
  • the first wireless device can employ a multiple access technique to allocate a second frequency resource for the non-waking message.
  • the frequency resource of 80 MHz is first divided into four frequency resources of 20 MHz, which are respectively the main 40 MHz in FIG. 3 (including FIG. 3).
  • the secondary 40 MHz also includes the primary 20 MHz and the secondary 20 MHz (not shown).
  • a resource unit (RU, Resource Unit) of a single size of 26-tone in the secondary 20 MHz in FIG. 3 (the size of the RU is only shown, which does not represent the actual size of the resource) is allocated as the bearer message.
  • a frequency resource is allocated to a second wireless device; at the same time, the other RUs in the secondary 20 MHz in FIG. 3 are vacant.
  • the primary 20 MHz and the secondary 40 MHz in FIG. 3 are allocated as second frequency resources carrying non-waking messages, and are respectively allocated to two different third wireless devices.
  • the above method of allocating frequency resources is merely an example, and other methods of allocating frequency resources are within the protection scope of the present invention.
  • the black box indicates the preamble
  • the white box indicates the RU with the load blank
  • the light gray box indicates the RU assigned to the wakeup message in the load
  • the dark gray box indicates the non-wake message assigned to the load. RU.
  • the first wireless device may send the location information of the frequency resource pool to the second wireless device by using a beacon frame in a broadcast manner.
  • the method also includes:
  • the first wireless device allocates a corresponding number for each third wireless device according to the second frequency resource.
  • the three frequency resources set the location information of the third frequency resource allocated to each of the third wireless devices in the signaling information.
  • the signaling information includes a HE SIG-A field and an HE SIG-B field.
  • the first wireless device After completing the allocation of the first frequency resource, the second frequency resource, and the third frequency resource, the first wireless device performs a signaling domain (including the HE SIG-A field and the HE SIG-B field) in the preamble of the radio frame. filling.
  • a signaling domain including the HE SIG-A field and the HE SIG-B field
  • the bandwidth field in the HE SIG-A field is filled with 0010; the RU field in the center 26-tone in the HE SIG-B is padded with 0; and the site ID field corresponding to the second wireless device in the HE SIG-B field is filled with 11111111110 (2046); the filling manner of other signaling domains in the HE SIG-A field and the HE SIG-B field can refer to the relevant provisions of the protocol 802.11ax.
  • These vacant frequency resources serve as a guard band between the first frequency resource and the second frequency resource.
  • the method also includes:
  • the existence of vacant frequency resources between the first frequency resource and the second frequency resource includes:
  • the wake-up message and the non-waking message are carried in the same radio frame, and simultaneously occur to the second wireless device and the third wireless device, so that the first wireless device can use continuous large-scale in a period of time.
  • the bandwidth resource carries the wake-up message and the non-wake-up message in the same radio frame, and improves the utilization of the spectrum resource.
  • an embodiment of the present invention further provides a wake-up method, including:
  • Step 400 The WUR module of the second wireless device receives the wake-up message at the first frequency resource of the payload of the radio frame sent by the first wireless device.
  • the WUR module of the second wireless device synchronizes when receiving the wakeup message. If the synchronization is successful, the subsequent message is received, and the received message is decoded and verified. If the verification is successful, the wake-up message is correctly received.
  • the WUR module needs to perform demodulation operation on the received information before synchronization.
  • OOK and OFDM co-modulation after receiving a signal on a specific frequency resource (one or more RUs), the WUR module detects the level of energy in the duration in a single symbol duration period. If the energy level is above the threshold, then the current symbol can be considered to represent a binary '1' (or, '0', or other multi-bit binary); if the energy level is lower than or equal to the threshold, then the current symbol can be considered to represent a binary '0' (or, '1', or other multi-bit binary). The combination of other modulation methods and so on, will not be repeated.
  • the WUR module of the second wireless device may receive the wake-up message on all the RUs of the first frequency resource, or may selectively select one of the first frequency resources or A wakeup message is received on multiple RUs.
  • the method also includes:
  • the WUR module of the second wireless device receives the location information of the first frequency resource or the location information of the frequency resource pool from the first wireless device; wherein the frequency resource pool includes the first frequency resource; correspondingly,
  • the receiving, by the WUR module of the second wireless device, the wake-up message at the first frequency resource of the payload of the radio frame sent by the first wireless device includes:
  • the WUR module of the second wireless device receives the wake-up message at the first frequency resource according to the received location information of the first frequency resource or the location information of the frequency resource pool.
  • the receiving, by the WUR module of the second wireless device, the waking message at the first frequency resource according to the received location information of the frequency resource pool includes:
  • the WUR module of the second wireless device determines that the frequency resource in the frequency resource pool is unique, and receives the wakeup message at the frequency resource in the frequency resource pool;
  • the WUR module of the second wireless device determines that the frequency resource in the frequency resource pool is not unique, searches for the frequency resource in the frequency resource pool where the wake-up message is located by scanning the frequency-by-frequency resource, and receives the wake-up message at the frequency resource. .
  • the WUR module of the second wireless device is negative in the wireless frame sent by the first wireless device Receiving the wakeup message at the first frequency resource carried includes:
  • the WUR module of the second wireless device receives the wake-up message at the first frequency resource according to the location information of the first frequency resource set in advance.
  • Step 401 The WUR module of the second wireless device wakes up the main working module of the second wireless device.
  • the main working module includes a main sending module and a main receiving module.
  • the WUR module of the second wireless device does not receive the wakeup message at the first frequency resource, the operation of waking up the main working module is not performed.
  • the method further includes:
  • the WUR module of the second wireless device After receiving the wake-up message at the first frequency resource of the payload of the radio frame sent by the first wireless device, the WUR module of the second wireless device determines that it is the target device before waking up the main working module of the second wireless device.
  • the operation of waking up the main working module is not performed.
  • the WUR module of the second wireless device can determine whether it is a target device by determining whether the wake-up message is a broadcast message, and if it is a broadcast message, determining that it is a target device; if not, broadcasting the message Whether the awake message includes its own device identifier; if the awake message includes its own device identifier, it determines that it is the target device; if the awake message does not include its own device identifier, it determines that it is not the target device.
  • the WUR module of the second wireless device may also use other methods to determine whether it is a target device, and details are not described herein again.
  • the main working module includes a main sending module, and the method further includes:
  • the primary sending module of the second wireless device sends the feedback information to the first wireless device after being woken up again, wherein the feedback information includes the first frequency resource or the frequency resource pool of the wake-up message in the load of the wireless frame.
  • an embodiment of the present invention further provides a wake-up method, including:
  • Step 500 the first wireless device separately to one or more second wireless devices and one or More than one third wireless device transmits a radio frame.
  • the load of the radio frame carries the wake-up message and the non-waking message, and the wake-up message is allocated on the first frequency resource, and the non-waking message is allocated in the same frequency resource pool as the first frequency resource or the first frequency resource. On the second frequency resource.
  • the duration of the wake-up message is equal to the duration of the non-waking message; or the duration of the wake-up message is greater than the duration of the non-waking message; or the duration of the wake-up message is less than the duration of the non-waking message.
  • the first wireless device, the second wireless device, and the third wireless device may be any wireless device.
  • the first wireless device in a Basic Service Set (BSS)
  • the first wireless device may be an AP in the BSS
  • the second wireless device may be a dormant site in the BSS
  • the third wireless device may be The normal working site in BSS.
  • the square represents the AP
  • the circle represents the normal working site
  • the x represents the dormant site.
  • the second wireless device and the third wireless device both include a WUR module and a main working module.
  • the second wireless device includes a primary working module and a WUR module;
  • the third wireless device includes only the primary working module.
  • the main working module includes a main sending module and a main receiving module.
  • the main working module and the WUR module are described in detail below.
  • the main working module and the WUR module are included; the third wireless device only It is also within the scope of the present invention to include the main working module.
  • the main working module of the second wireless device is in a sleep state, and the WUR module of the second wireless device is in a normal working state; the main working module of the third wireless device is in a normal working state.
  • the WUR module of the third wireless device can be in a sleep state or a normal working state.
  • the radio frame includes a preamble and a payload.
  • the transmitting, by the first wireless device, the radio frame includes: the first wireless device sends a preamble of the radio frame, and after transmitting the preamble of the radio frame, transmitting the payload of the radio frame.
  • the preamble and load of the radio frame are transmitted in a time division manner.
  • the preamble and load occupy all frequency resources of the radio frame in different time periods.
  • the preamble occupies all the frequency resources of the radio frame, and when the payload is transmitted, the payload occupies all the frequency resources of the radio frame.
  • the preamble bearer serves signaling information of the non-waking message, and the preamble of the radio frame occupies no All frequency resources of the line frame.
  • the preamble also carries training information that serves non-waking messages.
  • the load carries the wake-up message and the non-waking message, and the wake-up message is allocated on the first frequency resource, and the non-waking message is allocated in the second frequency resource different from the frequency resource pool in which the first frequency resource or the first frequency resource is located. on.
  • the non-waking message includes at least one of a service message and other messages of a non-business class.
  • the first frequency resource includes one or more resource units (RUs).
  • RUs resource units
  • the wakeup message is allocated on the first frequency resource of the load including: the wakeup message is allocated on each of the RUs of the first frequency resource.
  • each RU of the first frequency resource carries the same wake-up message.
  • the second wireless device can obtain a wake-up message on any one of the first frequency resources.
  • Step 501 The WUR module of the second wireless device receives the wake-up message at the first frequency resource of the payload of the radio frame sent by the first wireless device, and wakes up the main working module of the second wireless device.
  • the WUR module of the second wireless device first synchronizes when receiving the wake-up message, and if the synchronization is successful, receives the subsequent message, and decodes and verifies the received message. If the verification succeeds, Indicates that the wakeup message was received correctly.
  • the WUR module needs to perform demodulation operation on the received information before synchronization.
  • OOK and OFDM co-modulation after receiving a signal on a specific frequency resource (one or more RUs), the WUR module detects the level of energy in the duration in a single symbol duration period. If the energy level is above the threshold, then the current symbol can be considered to represent a binary '1' (or, '0', or other multi-bit binary); if the energy level is lower than or equal to the threshold, then the current symbol can be considered to represent a binary '0' (or, '1', or other multi-bit binary). The combination of other modulation methods and so on, will not be repeated.
  • the WUR module of the second wireless device may receive the wake-up message on all the RUs of the first frequency resource, or may selectively select one of the first frequency resources or A wakeup message is received on multiple RUs.
  • the method also includes:
  • the first wireless device allocates a first frequency resource or a frequency resource pool to the wakeup message, and sends the location information of the first frequency resource or the location information of the frequency resource pool to the second wireless device; correspondingly,
  • the receiving, by the WUR module of the second wireless device, the wake-up message at the first frequency resource of the payload of the radio frame sent by the first wireless device includes:
  • the WUR module of the second wireless device receives the wake-up message at the first frequency resource according to the received location information of the first frequency resource;
  • the WUR module of the second wireless device receives the wake-up message at the first frequency resource according to the received location information of the frequency resource pool.
  • the first wireless device may use a multiple access technology to allocate a first frequency resource or a frequency resource pool to the wakeup message.
  • the multiple access technology includes OFDMA technology or FDMA technology.
  • the first wireless device may also allocate a second frequency resource for the non-waking message when the first frequency resource or the frequency resource pool is allocated to the wakeup message.
  • the first wireless device can employ a multiple access technique to allocate a second frequency resource for the non-waking message.
  • the frequency resource of 80 MHz is first divided into the main 40 MHz (including the main 20 MHz and the auxiliary 20 MHz in FIG. 3) and the auxiliary 40 MHz in FIG.
  • the secondary 40 MHz also includes the primary 20 MHz and the secondary 20 MHz (not shown).
  • a resource unit (RU, Resource Unit) of a single size of 26-tone in the secondary 20 MHz in FIG. 3 (the size of the RU is only shown, which does not represent the actual size of the resource) is allocated as the bearer message.
  • a frequency resource is allocated to a second wireless device; at the same time, the other RUs in the secondary 20 MHz in FIG. 3 are vacant.
  • the primary 20 MHz and the secondary 40 MHz in FIG. 3 are allocated as second frequency resources carrying non-waking messages, and are respectively allocated to two different third wireless devices.
  • the above method of allocating frequency resources is merely an example, and other methods of allocating frequency resources are within the protection scope of the present invention.
  • the black box indicates the preamble
  • the white box indicates the RU with the load blank
  • the light gray box indicates the RU assigned to the wakeup message in the load
  • the dark gray box indicates the non-wake message assigned to the load. RU.
  • the first wireless device may send the location information of the frequency resource pool to the second wireless device by using a beacon frame in a broadcast manner.
  • the WUR module of the second wireless device receives the wakeup message at the first frequency resource according to the location information of the frequency resource pool, including:
  • the WUR module of the second wireless device determines that the frequency resource in the frequency resource pool is unique, and receives the wakeup message at the frequency resource in the frequency resource pool;
  • the WUR module of the second wireless device determines that the frequency resource in the frequency resource pool is not unique, searches for the frequency resource in the frequency resource pool where the wake-up message is located by scanning the frequency-by-frequency resource, and receives the wake-up message at the frequency resource. .
  • receiving, by the wake-up receiver WUR module of the second wireless device, the wake-up message at the first frequency resource of the payload of the radio frame sent by the first wireless device includes:
  • the WUR module of the second wireless device receives the wake-up message at the first frequency resource according to the location information of the first frequency resource set in advance.
  • Step 502 The third wireless device receives the radio frame.
  • the method also includes:
  • the first wireless device allocates a corresponding third frequency resource to each third wireless device according to the second frequency resource, and sets location information of the third frequency resource allocated to each third wireless device in the signaling information; ,
  • the third wireless device After receiving the radio frame, the third wireless device decodes the received radio frame payload at the second frequency resource according to the location information of the third frequency resource allocated to each third wireless device in the signaling information.
  • the signaling information includes a HE SIG-A field and an HE SIG-B field.
  • the first wireless device After completing the allocation of the first frequency resource, the second frequency resource, and the third frequency resource, the first wireless device performs a signaling domain (including the HE SIG-A field and the HE SIG-B field) in the preamble of the radio frame. filling.
  • a signaling domain including the HE SIG-A field and the HE SIG-B field
  • the bandwidth field in the HE SIG-A field is filled with 0010.
  • the RU field of the center 26-tone in the HE SIG-B field is filled with 0;
  • the site ID field corresponding to the second wireless device in the HE SIG-B field is filled with 11111111110 (2046);
  • HE SIG-A field and HE SIG-B Other signaling in the field
  • For the filling method of the domain refer to the relevant provisions of the protocol 802.11ax.
  • the method also includes:
  • the first wireless device modulates a preamble of the radio frame using a first modulation technique; co-modulating a wake-up message in a payload of the radio frame using a first modulation technique and a second modulation technique; modulating the load of the radio frame using a first modulation technique Non-waking up messages.
  • the first modulation technique includes OFDM
  • the second modulation technique includes a simple modulation technique.
  • simple modulation techniques include any of the following:
  • a 3 1, can represent 2 information bits '10';
  • a 4 3, can represent 2 information bits '01'.
  • the method also includes:
  • These vacant frequency resources serve as a guard band between the first frequency resource and the second frequency resource.
  • the main working module includes a main sending module, and the method further includes:
  • the primary sending module of the second wireless device sends feedback information to the first wireless device after being woken up again; wherein the feedback information includes the first frequency resource carrying the wake-up message and the non-waking message carrying the wake-up message in the payload of the wireless frame
  • the second frequency resource is vacant between the frequency resources Size; correspondingly,
  • the existence of vacant frequency resources between the first frequency resource and the second frequency resource includes:
  • the method further includes:
  • the WUR module of the second wireless device After receiving the wake-up message at the one or more first frequency resources of the payload of the radio frame transmitted by the first wireless device, the WUR module of the second wireless device determines that it is itself before waking up the main working module of the second wireless device Target device.
  • the operation of waking up the main working module is not performed.
  • the WUR module of the second wireless device can determine whether it is a target device by determining whether the wake-up message is a broadcast message, and if it is a broadcast message, determining that it is a target device; if not, broadcasting the message Whether the awake message includes its own device identifier; if the awake message includes its own device identifier, it determines that it is the target device; if the awake message does not include its own device identifier, it determines that it is not the target device.
  • the WUR module of the second wireless device may also use other methods to determine whether it is a target device, and details are not described herein again.
  • both the AP and the station (STA, Station) support 802.11ax.
  • the main working module of some sites is in a sleep state, and the WUR module is in a normal working state; the main working module of another site is in a normal working state, and the WUR module is in a dormant state (or, the part of the site has no WUR module, and its main working module In normal working condition).
  • the AP sends a wake-up message to the station whose main working module is in the sleep state, and sends at least one of the service message and other messages of the non-service class to the station that is in the working state of the main working module.
  • the AP allocates a first frequency resource for the wakeup message, and allocates a second frequency resource different from the first frequency resource for at least one of the service message and the other message of the non-service class. Taking a continuous frequency of 80 MHz as an example (as shown in FIG. 3), the AP allocates the wakeup message to a single 26-tone RU of the secondary 20 MHz (here, only the secondary 20 MHz is taken as an example, the actual situation is not limited to this.
  • the size of the RU in the figure is only schematic, does not represent the actual size of the resource), and the location information of a single 26-tone RU at 20 MHz is sent to the site where the main working module is in a dormant state; the service message and the non- At least one of the other messages of the service class is allocated on the remaining 60 MHz frequency resources.
  • the AP allocates a third frequency resource to the station in which the primary working module is in a normal working state according to the second frequency resource, and fills the HE SIG-B field and the resource according to the third frequency resource of the station in which the primary working module is in a normal working state. Assign the relevant signaling domain.
  • the bandwidth field in the HE SIG-A field of the preamble is filled with 0010.
  • the RU field of the center 26-tone in the HE SIG-B field is padded with 0; the site ID field corresponding to the second wireless device in the HE SIG-B field is filled with 11111111110 (2046);
  • HE SIG-A field and HE SIG- For the filling manner of other signaling domains in the B field, refer to the relevant provisions of the protocol 802.11ax.
  • the AP modulates the preamble with OFDM, and modulates at least one of a service message and other non-service type messages with OFDM.
  • the AP co-modulates the wake-up message with OOK and OFDM.
  • the AP sends the multi-user radio frame to the station where the main working module is in a dormant state and a normal working state.
  • the WUR module in normal operation obtains a wake-up message on a specific RU through a narrowband filter. If the wake-up message is correctly received (ie, the synchronization is completed and verified correctly), and it is determined that the wake-up message includes its own site identifier, the WUR module wakes up the main working module; if the wake-up message is not correctly received, the operation of waking up the main working module is not performed. .
  • the (11ax) target station in which the main working module is in a normal working state receives at least one of a service message sent by the AP and another message of the non-service class on the corresponding RU according to the signaling information in the preamble.
  • the AP Before transmitting the radio frame containing the wake-up message, the AP broadcasts a frequency resource pool of the wake-up message (ie, all available frequency resources of the wake-up message, including information such as size, location, etc.) using a beacon frame. If the frequency resource in the frequency resource pool is unique, the WUR module receives the wake-up message on the frequency resource. If the frequency resource in the frequency resource pool is not unique, the WUR module searches for the frequency resource where the wake-up message is located by means of frequency-by-band scanning, and receives the wake-up message on the frequency resource.
  • a frequency resource pool of the wake-up message ie, all available frequency resources of the wake-up message, including information such as size, location, etc.
  • Example 1 The basic assumptions and settings are similar to Example 1. The difference is that at the secondary 20 MHz where the wake-up message is located, in addition to the wake-up message and the vacant RU, there is at least one of a service message and another message of a non-service type, that is, the AP allocates a part of the frequency resource of the auxiliary 20 MHz to the The (11ax) target site in which the main working module waiting to receive at least one of the service message and the other message of the non-service class is in a normal working state. The size of the vacant frequency resource adjacent to the RU where the wake-up message is located is fed back to the AP by the awake master working module before sleeping again.
  • Example 2 The basic assumptions and settings are similar to Example 1. The difference is that in order to reduce the impact of the frequency selectivity of the channel, the AP chooses to send the same wake-up message on multiple (continuous or non-contiguous) RUs of the secondary 20 MHz. It should be noted that, for the convenience of understanding, this example sets all RUs that carry wake-up messages on the secondary 20 MHz. But this does not mean that the above transmission method is the only choice of the AP. In fact, the AP may use any one or more (continuous or non-contiguous) RUs to carry wake-up messages within the capabilities allowed. The WUR module of the target site may choose to simultaneously receive the above wakeup message on one or more of the RUs that are notified of the wakeup message.
  • Example 1 The basic assumptions and settings are similar to Example 1. The difference is that the duration of the wake-up message is not equal to the duration of the non-waking message. That is, the duration of the wake-up message is greater than the duration of the non-wake-up message; or, wake-up The duration of the message is less than the duration of the non-waking message.
  • the AP shall fill the length field in the leading L-SIG field with the maximum of the duration of the wake-up message and the duration of the non-waking message.
  • an embodiment of the present invention provides a first wireless device, including:
  • the sending module 600 is configured to send a wireless frame to one or more second wireless devices and one or more third wireless devices respectively;
  • the load of the radio frame carries the wake-up message and the non-waking message, and the wake-up message is allocated on the first frequency resource, and the non-waking message is allocated in the same frequency resource pool as the first frequency resource or the first frequency resource. On the second frequency resource.
  • the radio frame includes a preamble and a load; the sending module 600 is configured to:
  • it also includes:
  • a modulation module 603 configured to modulate a preamble of the radio frame using the first modulation technique; jointly modulate a wakeup message in a payload of the radio frame using the first modulation technique and the second modulation technique; and modulate the payload of the radio frame using the first modulation technique Non-waking up messages.
  • it also includes:
  • the allocating module 601 is configured to allocate a first frequency resource or a frequency resource pool to the wakeup message, where the frequency resource pool includes the first frequency resource;
  • the sending module 600 is also configured to:
  • the location information of the first frequency resource or the location information of the frequency resource pool is sent to the second wireless device.
  • the preamble bearer of the radio frame serves signaling information of the non-waking message, and the preamble of the radio frame occupies all frequency resources of the radio frame;
  • the first wireless device further includes:
  • the allocating module 601 is configured to allocate, according to the second frequency resource, a corresponding third frequency resource for each third wireless device;
  • the setting module 602 is configured to set location information of the third frequency resource allocated to each of the third wireless devices in the signaling information.
  • an embodiment of the present invention provides a second wireless device, including:
  • the wake-up receiver WUR module 701 is configured to receive a wake-up message at the first frequency resource of the payload of the radio frame transmitted by the first wireless device to wake up the main working module of the second wireless device.
  • the WUR module 701 is configured to:
  • the WUR module 701 is configured to:
  • the main working module 702 of the second wireless device is woken up.
  • the WUR module 701 is configured to receive the wakeup message at the first frequency resource according to the location information of the frequency resource pool in the following manner:
  • the frequency resource in the frequency resource pool is not unique, and the frequency resource in the frequency resource pool in which the wake-up message is located is searched by the frequency-by-frequency resource scanning manner, and the wake-up message is received at the frequency resource.
  • the WUR module 701 is configured to receive the wakeup message at the first frequency resource of the payload of the radio frame sent by the first wireless device in the following manner:
  • a wake-up message is received at the first frequency resource according to the location information of the first frequency resource set in advance.
  • the main working module 702 includes a main sending module 7021;
  • the main sending module 7021 is configured to send feedback information to the first wireless device after being woken up again, wherein the feedback information includes the first frequency resource carrying the wake-up message and the non-waking message carrying the payload of the wireless frame.
  • an embodiment of the present invention provides a wake-up system, including: a first wireless device 800, a second wireless device 801, and a third wireless device 802; wherein, the second wireless device 801 includes a wake-up receiver WUR module 701 and Main sending module 702;
  • the first wireless device 800 is configured to send a wireless frame to one or more second wireless devices 801 and one or more third wireless devices 802, respectively;
  • the payload of the radio frame carries the wake-up message and the non-waking message, and the wake-up message is allocated on the first frequency resource of the load, and the non-waking message is allocated to the frequency resource of the load and the first frequency resource or the first frequency resource. a different second frequency resource on the pool;
  • the wake-up receiver WUR module 701 of the second wireless device 801 is configured to receive a wake-up message at the first frequency resource of the payload of the wireless frame sent by the first wireless device 800, waking up the main working module 702 of the second wireless device 801;
  • the third wireless device 802 is configured to receive a wireless frame.
  • the first wireless device 800 is further configured to:
  • the first frequency resource or the frequency resource pool is allocated to the wakeup message, and the location information of the first frequency resource or the location information of the frequency resource pool is sent to the second wireless device 801; wherein the frequency resource pool includes the first frequency resource;
  • the WUR module 701 of the second wireless device 801 is configured to receive a wake-up message at a first frequency resource of the payload of the radio frame transmitted by the first wireless device 800 in the following manner:
  • a wake-up message is received at a frequency resource.
  • the wake-up receiver WUR module 701 of the second wireless device 801 is configured to receive the wake-up message at the first frequency resource of the load of the wireless frame sent by the first wireless device 800 in the following manner:
  • a wake-up message is received at the first frequency resource according to the location information of the first frequency resource set in advance.
  • the WUR module 701 of the second wireless device 801 is configured to:
  • a wake-up message is received at the first frequency resource of the payload of the radio frame transmitted by the first wireless device 800, and it is determined that it is the target device, and the main working module 702 of the second wireless device 801 is woken up.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, which are implemented by the processor to implement the method described in the foregoing embodiments.
  • computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules, or other data. , removable and non-removable media.
  • Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, Flash or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic box, magnetic tape, disk storage or other magnetic storage device, or any that can be used to store desired information and be accessible by a computer Other media.
  • communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media.
  • the wake-up message and the non-waking message are carried in the same radio frame, and are sent to the second wireless device and the third wireless device, so that the first wireless device can use continuous large bandwidth for a period of time.
  • the resource carries the wake-up message and the non-wake-up message in the same radio frame, and improves the utilization of the spectrum resource.

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Abstract

一种唤醒方法、装置和系统,包括:第一无线设备分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧(100);其中,无线帧的负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在第一频率资源上,非唤醒消息被分配在与第一频率资源或第一频率资源所在的频率资源池不同的第二频率资源上。

Description

一种唤醒方法、装置和系统 技术领域
本文涉及但不限于无线通信领域,尤指一种唤醒方法、装置和系统。
背景技术
伴随着物联网行业的快速发展,物联网(IoT,Internet of Thing)设备已经遍及智能交通、环境保护、政府工作、公共安全、平安家居、智能消防、工业监测、老人护理、个人健康、水系监测、食品溯源等诸多领域。其中,大部分物联网设备需要通过电池供电进行工作。在多数应用场景中,考虑到成本、自然环境以及运营商的需求等因素,往往需要设备在长达数月甚至数年内无需更换电池。这也使得物联网设备必须具备高性能的节电机制。
作为一种有效的解决方案,在IoT设备中引入独立的唤醒接收器(WUR,Wake-up Receiver)模块来唤醒IoT设备中的主工作模块,将极大地提高相关IoT设备的电池(或其他能量源)的使用寿命进而满足严苛的使用年限需求。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例提供了一种唤醒方法、装置和系统,能够实现唤醒消息和非唤醒消息的同时发送。
本发明实施例提供了一种唤醒方法,包括:
第一无线设备分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧;
其中,无线帧的负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在第一频率资源上,非唤醒消息被分配在与第一频率资源或第一频率资源所在 的频率资源池不同的第二频率资源上。
可选地,所述无线帧包括前导和负载;所述第一无线设备发送无线帧包括:
所述第一无线设备先发送所述无线帧的前导,在发送完所述无线帧的前导后,发送所述无线帧的负载。
可选地,所述无线帧的前导承载服务于所述非唤醒消息的信令信息,且所述无线帧的前导占据所述无线帧的所有频率资源;
该方法之前还包括:
所述第一无线设备根据所述第二频率资源为每一个所述第三无线设备分配对应的第三频率资源,将分配给每一个所述第三无线设备的第三频率资源的位置信息设置在所述信令信息中。
可选地,该方法还包括:
所述第一无线设备向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧之前,所述第一无线设备使用第一调制技术调制所述无线帧的前导;使用所述第一调制技术和第二调制技术共同调制所述无线帧的负载中的唤醒消息;使用所述第一调制技术调制所述无线帧的负载中的非唤醒消息。
可选地,所述第一调制技术包括正交频分复用技术OFDM,所述第二调制技术包括简单调制技术。
可选地,所述简单调制技术包括以下的任意一种:
启闭键控OOK、幅移键控ASK、频移键控FSK、相移键控PSK。
可选地,该方法之前还包括:
所述第一无线设备为所述唤醒消息分配第一频率资源或频率资源池,将所述第一频率资源的位置信息或所述频率资源池的位置信息发送给所述第二无线设备;
其中,所述频率资源池包括所述第一频率资源。
可选地,所述分配第一频率资源或频率资源池包括:所述第一无线设备 使用多址技术为所述唤醒消息分配所述第一频率资源或频率资源池。
可选地,所述多址技术包括频分多址FDMA技术或正交频分多址OFDMA技术。
可选地,所述唤醒消息的时长等于非唤醒消息的时长;或者,所述唤醒消息的时长大于所述非唤醒消息的时长;或者,所述唤醒消息的时长小于所述非唤醒消息的时长。
可选地,所述第二无线设备的主工作模块处于休眠状态,所述第二无线设备的唤醒接收器WUR模块处于正常工作状态;所述第三无线设备的主工作模块处于正常工作状态。
可选地,所述第一频率资源和所述第二频率资源之间存在空置的频率资源。
可选地,该方法之前还包括:
所述第一无线设备接收到来自所述第二无线设备的反馈信息;
所述第一频率资源和第二频率资源之间存在空置的频率资源包括:
所述第一频率资源和所述第二频率资源之间存在大小为所述反馈信息中指示的资源大小的空置的频率资源;
或者,所述第一频率资源和所述第二频率资源之间大小为预设大小的空置的频率资源。
可选地,所述第一频率资源包括一个或多个资源单元RU;
当第一频率资源包括多个RU时,所述唤醒消息被分配在负载的第一频率资源上包括:所述唤醒消息被分配在所述第一频率资源的每一个RU上。
本发明实施例还提供了一种唤醒方法,包括:
第二无线设备的唤醒接收器WUR模块在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息;
第二无线设备的WUR模块,唤醒第二无线设备的主工作模块。
可选地,该方法还包括:
所述第二无线设备的WUR模块在第一无线设备发送的无线帧的负载的 第一频率资源处接收到唤醒消息后,在所述唤醒第二无线设备的主工作模块之前,判断出自身是目标设备。
可选地,该方法之前还包括:
所述第二无线设备的WUR模块接收到来自所述第一无线设备的第一频率资源的位置信息或频率资源池的位置信息;其中,频率资源池包括所述第一频率资源;
所述第二无线设备的WUR模块在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息包括:
所述第二无线设备的WUR模块根据接收到的第一频率资源的位置信息在所述第一频率资源处接收到所述唤醒消息;
或者,所述第二无线设备的WUR模块根据接收到的频率资源池的位置信息在所述第一频率资源处接收到所述唤醒消息;
或者,所述第二无线设备的WUR模块根据预先设置的第一频率资源的位置信息在所述第一频率资源处接收到所述唤醒消息。
可选地,所述第二无线设备的WUR模块根据接收到的频率资源池的位置信息在第一频率资源处接收到唤醒消息包括:
所述第二无线设备的WUR模块判断出所述频率资源池中的频率资源唯一,在所述频率资源池中的频率资源处接收到所述唤醒消息;
或,所述第二无线设备的WUR模块判断出所述频率资源池中的频率资源不唯一,通过逐频率资源扫描的方式寻找所述唤醒消息所在的频率资源池中的频率资源,并在该频率资源处接收所述唤醒消息;
可选地,所述主工作模块包括主发送模块,该方法还包括:
所述第二无线设备的主发送模块在被唤醒之后,再次休眠之前,向所述第一无线设备发送反馈信息;其中,反馈信息包括所述无线帧的负载中,承载所述唤醒消息的第一频率资源和承载非唤醒消息的第二频率资源之间被空置的频率资源的大小。
本发明实施例又提供了一种唤醒方法,包括:
第一无线设备分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧;
其中,无线帧的负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在第一频率资源上,非唤醒消息被分配在与第一频率资源或第一频率资源所在的频率资源池不同的第二频率资源上;
第二无线设备的唤醒接收器WUR模块在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息,唤醒第二无线设备的主工作模块;
第三无线设备接收无线帧。
本发明实施例再提供了一种第一无线设备,包括:
发送模块,设置为分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧;
其中,无线帧的负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在第一频率资源上,非唤醒消息被分配在与第一频率资源或第一频率资源所在的频率资源池不同的第二频率资源上。
可选地,所述无线帧包括前导和负载;所述发送模块是设置为:
先分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送所述无线帧的前导,在发送完所述无线帧的前导后,再分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送所述无线帧的负载。
可选地,所述无线帧的前导承载服务于所述非唤醒消息的信令信息,且所述无线帧的前导占据所述无线帧的所有频率资源;
所述第一无线设备还包括:
分配模块,设置为根据所述第二频率资源为每一个所述第三无线设备分配对应的第三频率资源;
设置模块,设置为将分配给每一个所述第三无线设备的第三频率资源的位置信息设置在所述信令信息中。
可选地,还包括:
调制模块,设置为使用第一调制技术调制所述无线帧的前导;使用所述第一调制技术和第二调制技术共同调制所述无线帧的负载中的唤醒消息;使用所述第一调制技术调制所述无线帧的负载中的非唤醒消息。
可选地,还包括:
分配模块,设置为为所述唤醒消息分配所述第一频率资源或频率资源池;其中,频率资源池包括所述第一频率资源;
所述发送模块还设置为:
将所述第一频率资源的位置信息或所述频率资源池的位置信息发送给所述第二无线设备。
本发明实施例还提供了一种第二无线设备,包括:
唤醒接收器WUR模块,设置为在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息,唤醒第二无线设备的主工作模块。
可选地,所述WUR模块是设置为:
在所述第一无线设备发送的无线帧的负载的所述第一频率资源处接收到所述唤醒消息,判断出自身是目标设备,唤醒所述第二无线设备的主工作模块。
可选地,所述WUR模块是设置为:
接收到来自所述第一无线设备的所述第一频率资源的位置信息或频率资源池的位置信息;其中,所述频率资源池包括所述第一频率资源;
根据接收到的第一频率资源的位置信息在所述第一频率资源处接收到所述唤醒消息;或者,根据接收到的频率资源池的位置信息在所述第一频率资源处接收到所述唤醒消息;或者,根据预先设置的第一频率资源的位置信息在所述第一频率资源处接收到所述唤醒消息;
唤醒第二无线设备的主工作模块。
可选地,所述WUR模块是设置为采用以下方式实现根据频率资源池的位置信息在第一频率资源处接收到唤醒消息:
判断出所述频率资源池中的频率资源唯一,在所述频率资源池中的频率 资源处接收到所述唤醒消息;
或,判断出所述频率资源池中的频率资源不唯一,通过逐频率资源扫描的方式寻找所述唤醒消息所在的频率资源池中的频率资源,并在该频率资源处接收所述唤醒消息。
可选地,还包括:主工作模块;所述主工作模块包括主发送模块;
所述主发送模块,设置为在被唤醒之后,再次休眠之前,向所述第一无线设备发送反馈信息;其中,反馈信息包括所述无线帧的负载中,承载所述唤醒消息的第一频率资源和承载非唤醒消息的第二频率资源之间被空置的频率资源的大小。
本发明实施例再提供了一种唤醒系统,包括:第一无线设备、第二无线设备和第三无线设备;其中,第二无线设备包括唤醒接收器WUR模块和主工作模块;
其中,第一无线设备,设置为分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧;
其中,无线帧的负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在第一频率资源上,非唤醒消息被分配在与第一频率资源或第一频率资源所在的频率资源池不同的第二频率资源上;
第二无线设备的唤醒接收器WUR模块,设置为在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息,唤醒第二无线设备的主工作模块;
第三无线设备,设置为接收无线帧。
本发明实施例包括:第一无线设备分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧;其中,无线帧的负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在第一频率资源上,非唤醒消息在与第一频率资源或第一频率资源所在的频率资源池不同的第二频率资源上。通过本发明实施例的方法,将唤醒消息和非唤醒消息承载在同一个无线帧中,发送给第二无线设备和第三无线设备。该操作使得第一无线设备能够在一段时间内使用连续的大带宽资源在同一无线帧内携带唤醒消息和非唤醒消息 的同时,提升频谱资源的利用率。
在阅读并理解了附图和详细描述后,可以明白其他方面。
附图概述
设置为图1为本发明实施例唤醒方法的流程图;
图2为本发明实施例BSS示意图;
图3为本发明实施例无线帧的帧结构的示意图;
图4为本发明实施例又一唤醒方法的流程图;
图5为本发明实施例又一唤醒方法的流程图;
图6为本发明实施例第一无线设备的结构组成示意图;
图7为本发明实施例第二无线设备的结构组成示意图;
图8为本发明实施例唤醒系统的结构组成示意图。
本发明的实施方式
下文中将结合附图对本发明的实施例进行详细说明。
在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行。并且,虽然在流程图中示出了逻辑顺序,但是在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤。
参见图1,本发明实施例提出了一种唤醒方法,包括:
步骤100、第一无线设备分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧。
其中,无线帧的负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在第一频率资源上,非唤醒消息被分配在与第一频率资源或第一频率资源所在的频率资源池不同的第二频率资源上。
其中,唤醒消息的时长等于非唤醒消息的时长;或者,唤醒消息的时长大于非唤醒消息的时长;或者,唤醒消息的时长小于非唤醒消息的时长。
本步骤中,第一无线设备、第二无线设备和第三无线设备可以是任意一种无线设备。例如,如图2所示,在基本服务集合(BSS,Basic Service Set)中,第一无线设备可以是BSS中的AP,第二无线设备可以是BSS中的休眠站点(STA,Station),第三无线设备可以是BSS中的正常工作站点。图2中,方形表示AP,圆形表示正常工作站点,×表示休眠站点。
本步骤中,第二无线设备和第三无线设备均包括主工作模块和WUR模块。或者,第二无线设备包括主工作模块和WUR模块;第三无线设备只包括主工作模块。其中,主工作模块包括主发送模块和主接收模块。考虑到撰写的简便性,下文仅对第二无线设备、第三无线设备包括主工作模块和WUR模块的情况做详细叙述,对于第二无线设备包括主工作模块和WUR模块;第三无线设备只包括主工作模块的情况也在本发明的保护范围内。
第二无线设备的主工作模块处于休眠状态,第二无线设备的WUR模块处于正常工作状态;第三无线设备的主工作模块处于正常工作状态。可选的,第三无线设备的WUR模块既可以处于休眠状态,也可以处于正常工作状态。
可选地,无线帧包括前导和负载。
第一无线设备发送无线帧包括:第一无线设备发送无线帧的前导,在发送完无线帧的前导后,发送无线帧的负载。
也就是说,将无线帧的前导和负载采用时分的方式进行发送。
前导和负载在不同的时间段内占据无线帧的所有频率资源。在发送前导时,前导占据无线帧的所有频率资源,在发送负载时,负载占据无线帧的所有频率资源。
其中,前导承载服务于非唤醒消息的信令信息,且无线帧的前导占据无线帧的所有频率资源。可选的,前导还承载服务于非唤醒消息的训练信息。
其中,负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在第一频率资源上,非唤醒消息被分配在与第一频率资源或第一频率资源所在的频率资源池不同的第二频率资源上。
其中,非唤醒消息包括业务消息和非业务类的其他消息中的至少一种。
本步骤中,第一频率资源包括一个或多个资源单元(RU,Resource Unit)。
当第一频率资源包括多个RU时,唤醒消息被分配在负载的第一频率资源上包括:唤醒消息被分配在第一频率资源的每一个RU上。
也就是说,当第一频率资源包括多个RU时,第一频率资源的每一个RU承载相同的唤醒消息。第二无线设备在第一频率资源的任何一个RU上均能获得唤醒消息。
可选的,该方法之前还包括:
步骤101、第一无线设备使用第一调制技术调制无线帧的前导;使用第一调制技术和第二调制技术共同调制无线帧的负载中的唤醒消息;使用第一调制技术调制所述无线帧的负载中的非唤醒消息。
本步骤中,第一调制技术包括OFDM,第二调制技术包括简单调制技术。
其中,简单调制技术包括以下的任意一种:
启闭键控(OOK,On-Off Keying)、幅移键控(ASK,Amplitude Shift Keying)、频移键控(FSK,Frequency Shift Keying)、相移键控(PSK,Phase Shift Keying)等。
例如,当以OFDM和ASK共同调制唤醒消息时,被调制到第一频率资源上的信号的幅度有M=2k种,取值分别为A1至AM,对应k个信息比特。以M=4为例(其他情况依此类推),其中Am=2m-1-M(这里Am的取值并不代表信号幅值的实际大小,仅仅表示一种相对关系),m=1,2,…,M。A1=-3,可以代表2个信息比特‘00’;A2=-1,可以代表2个信息比特‘01’;A3=1,可以代表2个信息比特‘10’;A4=3,可以代表2个信息比特‘01’。需要说明的是:当M=2时,OFDM+ASK的调制组合实质就是OFDM+OOK的调制组合。其中,A1=0;A2=C(C为常数)。
当以OFDM和FSK共同调制唤醒消息时,被调制到第一频率资源上的信号的中心载频有M=2k种不同的取值,分别为f1至fM,对应k个信息比特。
当以OFDM和PSK共同调制唤醒消息时,被调制到第一频率资源上的信号的相位有M=2k种不同的取值,分别为P1至PM,对应k个信息比特。
可选的,该方法之前还包括:
步骤102、第一无线设备为唤醒消息分配第一频率资源或频率资源池, 将第一频率资源的位置信息或频率资源池的位置信息发送给第二无线设备。
本步骤中,频率资源池包括第一频率资源。
本步骤中,第一无线设备可以采用多址技术为唤醒消息分配第一频率资源或频率资源池。
其中,多址技术包括正交频分多址(OFDMA,Orthography Frequency Division Multiple Access)技术或频分多址(FDMA,Frequency Division Multiple Access)技术等。
本步骤中,第一无线设备为唤醒消息分配第一频率资源或频率资源池时,还可以为非唤醒消息分配第二频率资源。
同样,第一无线设备可以采用多址技术为非唤醒消息分配第二频率资源。
如图3所示,以连续80兆赫兹(MHz)的频率资源为例,先将80MHz的频率资源划分为四个大小为20MHz的频率资源,分别为图3中的主40MHz(包括图3中的主20MHz、辅20MHz)和辅40MHz。同样,辅40MHz也包括主20MHz和辅20MHz(图中未示出)。然后,将图3中的辅20MHz中的单个大小为26-tone(图中RU的大小仅为示意,不代表资源的实际大小)的资源单元(RU,Resource Unit)分配为承载唤醒消息的第一频率资源,并分配给一个第二无线设备;同时,将图3中的辅20MHz中的其他RU空置。将图3中的主20MHz和辅40MHz分配为承载非唤醒消息的第二频率资源,并分别分配给两个不同的第三无线设备。当然,上述分配频率资源的方法仅仅是一种示例,其他的分配频率资源的方法均在本发明的保护范围内。图3中,黑色的方框表示前导,白色的方框表示负载中空置的RU,浅灰色的方框表示负载中分配给唤醒消息的RU,深灰色的方框表示负载中分配给非唤醒消息的RU。
本步骤中,第一无线设备可以采用信标(Beacon)帧以广播的方式将频率资源池的位置信息发送给第二无线设备。
可选的,该方法之前还包括:
第一无线设备根据第二频率资源为每一个第三无线设备分配对应的第 三频率资源,将分配给每一个第三无线设备的第三频率资源的位置信息设置在信令信息中。
其中,信令信息包括HE SIG-A字段和HE SIG-B字段。
第一无线设备在完成对第一频率资源、第二频率资源和第三频率资源的分配之后,对无线帧的前导中的信令域(包括HE SIG-A字段和HE SIG-B字段)进行填充。
其中,HE SIG-A字段中的带宽域填充为0010;HE SIG-B中的中心26-tone的RU域填充为0;HE SIG-B字段中第二无线设备所对应的站点ID域填充为11111111110(2046);HE SIG-A字段和HE SIG-B字段中的其他信令域的填充方式可参考协议802.11ax的相关规定。
可选的,第一频率资源和第二频率资源之间存在空置的频率资源。
这些空置的频率资源作为第一频率资源和第二频率资源之间的保护带。
可选的,该方法之前还包括:
第一无线设备接收到来自第二无线设备的反馈信息;
第一频率资源和第二频率资源之间存在空置的频率资源包括:
第一频率资源和第二频率资源之间存在大小为所述反馈信息中指示的资源大小的空置的频率资源。
或者,第一频率资源和第二频率资源之间存在大小为预设大小的空置的频率资源。
通过本发明实施例的方法,将唤醒消息和非唤醒消息承载在同一个无线帧中,同时发生给第二无线设备和第三无线设备,使得第一无线设备能够在一段时间内使用连续的大带宽资源在同一无线帧内携带唤醒消息和非唤醒消息的同时,提升频谱资源的利用率。
参见图4,本发明实施例还提出了一种唤醒方法,包括:
步骤400、第二无线设备的WUR模块在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息。
本步骤中,第二无线设备的WUR模块在接收唤醒消息时,先进行同步, 如果同步成功,则接收后续的消息,并对接收到的消息进行译码和校验,如果校验成功,则说明正确接收到唤醒消息。
其中,WUR模块在同步之前需要对接收信息进行解调操作。以OOK和OFDM共同调制为例,WUR模块在特定的频率资源(一个或多个RU)上接收到信号后,以单个符号时长为周期,检测该时长内能量水平的高低。如果能量水平高于阈值,那么可以认为当前符号代表二进制‘1’(或,‘0’,或其他多位二进制);如果能量水平低于或等于阈值,那么可以认为当前符号代表二进制‘0’(或,‘1’,或其他多位二进制)。其他调制方式的组合依此类推,不再做过多赘述。
本步骤中,当第一频率资源包括多个RU时,第二无线设备的WUR模块可以在第一频率资源的所有RU上接收唤醒消息,也可以选择性的在第一频率资源的某一个或多个RU上接收唤醒消息。
可选的,该方法之前还包括:
第二无线设备的WUR模块接收到来自第一无线设备的第一频率资源的位置信息或频率资源池的位置信息;其中,频率资源池包括第一频率资源;相应的,
第二无线设备的WUR模块在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息包括:
第二无线设备的WUR模块根据接收到的第一频率资源的位置信息或频率资源池的位置信息在第一频率资源处接收到唤醒消息。
可选的,第二无线设备的WUR模块根据接收到的频率资源池的位置信息在第一频率资源处接收到唤醒消息包括:
第二无线设备的WUR模块判断出频率资源池中的频率资源唯一,在频率资源池中的频率资源处接收到所述唤醒消息;
或,第二无线设备的WUR模块判断出频率资源池中的频率资源不唯一,通过逐频率资源扫描的方式寻找唤醒消息所在的频率资源池中的频率资源,并在该频率资源处接收唤醒消息。
可选的,第二无线设备的WUR模块在第一无线设备发送的无线帧的负 载的第一频率资源处接收到唤醒消息包括:
第二无线设备的WUR模块根据预先设置的第一频率资源的位置信息在第一频率资源处接收到所述唤醒消息。
步骤401、第二无线设备的WUR模块唤醒第二无线设备的主工作模块。
本步骤中,主工作模块包括主发送模块和主接收模块。
可选的,如果第二无线设备的WUR模块在第一频率资源处接收不到唤醒消息,则不执行唤醒主工作模块的操作。
可选的,该方法还包括:
第二无线设备的WUR模块在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息后,在唤醒第二无线设备的主工作模块之前,判断出自身是目标设备。
可选的,当第二无线设备的WUR模块判断出自身不是目标设备,则不执行唤醒主工作模块的操作。
可选的,第二无线设备的WUR模块可以采用以下方式判断自身是否是目标设备:判断唤醒消息是否是广播消息,如果是广播消息,则判断出自身是目标设备;如果不是广播消息,则判断唤醒消息中是否包括自身的设备标识;如果唤醒消息中包括自身的设备标识,则判断出自身是目标设备;如果唤醒消息中不包括自身的设备标识,则判断出自身不是目标设备。
当然,上述的判断方法仅仅是一种示例,第二无线设备的WUR模块还可以采用其他的方式来判断自身是否是目标设备,这里不再赘述。
可选的,主工作模块包括主发送模块,该方法还包括:
第二无线设备的主发送模块在被唤醒之后,再次休眠之前,向第一无线设备发送反馈信息;其中,反馈信息包括无线帧的负载中,承载唤醒消息的第一频率资源或频率资源池的其中一个频率资源,和承载非唤醒消息的第二频率资源之间被空置的频率资源的大小。
参见图5,本发明实施例还提出了一种唤醒方法,包括:
步骤500、第一无线设备分别向一个或一个以上第二无线设备和一个或 一个以上第三无线设备发送无线帧。
其中,无线帧的负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在第一频率资源上,非唤醒消息被分配在与第一频率资源或第一频率资源所在的频率资源池不同的第二频率资源上。
其中,唤醒消息的时长等于非唤醒消息的时长;或者,唤醒消息的时长大于非唤醒消息的时长;或者,唤醒消息的时长小于非唤醒消息的时长。
本步骤中,第一无线设备、第二无线设备和第三无线设备可以是任意一种无线设备。例如,如图2所示,在基本服务集合(BSS,Basic Service Set)中,第一无线设备可以是BSS中的AP,第二无线设备可以是BSS中的休眠站点,第三无线设备可以是BSS中的正常工作站点。图2中,方形表示AP,圆形表示正常工作站点,×表示休眠站点。
本步骤中,第二无线设备和第三无线设备均包括WUR模块和主工作模块。或者,第二无线设备包括主工作模块和WUR模块;第三无线设备只包括主工作模块。其中,主工作模块包括主发送模块和主接收模块。考虑到撰写的简便性,下文仅对第二无线设备、第三无线设备包括主工作模块和WUR模块的情况做详细叙述,对于第二无线设备包括主工作模块和WUR模块;第三无线设备只包括主工作模块的情况也在本发明的保护范围内。
第二无线设备的主工作模块处于休眠状态,第二无线设备的WUR模块处于正常工作状态;第三无线设备的主工作模块处于正常工作状态。可选的,第三无线设备的WUR模块既可以处于休眠状态,也可以处于正常工作状态。
可选的,无线帧包括前导和负载。
第一无线设备发送无线帧包括:第一无线设备发送无线帧的前导,在发送完无线帧的前导后,发送无线帧的负载。
也就是说,将无线帧的前导和负载采用时分的方式进行发送。
前导和负载在不同的时间段内占据无线帧的所有频率资源。在发送前导时,前导占据无线帧的所有频率资源,在发送负载时,负载占据无线帧的所有频率资源。
其中,前导承载服务于非唤醒消息的信令信息,且无线帧的前导占据无 线帧的所有频率资源。可选的,前导还承载服务于非唤醒消息的训练信息。
其中,负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在第一频率资源上,非唤醒消息被分配在与第一频率资源或第一频率资源所在的频率资源池不同的第二频率资源上。
其中,非唤醒消息包括业务消息和非业务类的其他消息中至少一种。
本步骤中,第一频率资源包括一个或多个资源单元(RU,Resource Unit)。
当第一频率资源包括多个RU时,唤醒消息被分配在负载的第一频率资源上包括:唤醒消息被分配在第一频率资源的每一个RU上。
也就是说,当第一频率资源包括多个RU时,第一频率资源的每一个RU承载相同的唤醒消息。第二无线设备在第一频率资源的任何一个RU上均能获得唤醒消息。
步骤501、第二无线设备的WUR模块在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息,唤醒第二无线设备的主工作模块。
本步骤中,第二无线设备的WUR模块在接收唤醒消息时,先进行同步,如果同步成功,则接收后续的消息,并对接收到的消息进行译码和校验,如果校验成功,则说明正确接收到唤醒消息。
其中,WUR模块在同步之前需要对接收信息进行解调操作。以OOK和OFDM共同调制为例,WUR模块在特定的频率资源(一个或多个RU)上接收到信号后,以单个符号时长为周期,检测该时长内能量水平的高低。如果能量水平高于阈值,那么可以认为当前符号代表二进制‘1’(或,‘0’,或其他多位二进制);如果能量水平低于或等于阈值,那么可以认为当前符号代表二进制‘0’(或,‘1’,或其他多位二进制)。其他调制方式的组合依此类推,不再做过多赘述。
本步骤中,当第一频率资源包括多个RU时,第二无线设备的WUR模块可以在第一频率资源的所有RU上接收唤醒消息,也可以选择性的在第一频率资源的某一个或多个RU上接收唤醒消息。
本步骤中,如果第二无线设备的WUR模块在第一频率资源处接收不到唤醒消息,则不执行唤醒主工作模块的操作。
可选的,该方法之前还包括:
第一无线设备为唤醒消息分配第一频率资源或频率资源池,将第一频率资源的位置信息或频率资源池的位置信息发送给第二无线设备;相应的,
第二无线设备的WUR模块在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息包括:
第二无线设备的WUR模块根据接收到的第一频率资源的位置信息在第一频率资源处接收到唤醒消息;
或者,第二无线设备的WUR模块根据接收到的频率资源池的位置信息在第一频率资源处接收到唤醒消息。
其中,第一无线设备可以采用多址技术为唤醒消息分配第一频率资源或频率资源池。
其中,多址技术包括OFDMA技术或FDMA技术等。
其中,第一无线设备为唤醒消息分配第一频率资源或频率资源池时,还可以为非唤醒消息分配第二频率资源。
同样,第一无线设备可以采用多址技术为非唤醒消息分配第二频率资源。
如图3所示,以连续80兆赫兹(MHz)的频率资源为例,先将80MHz的频率资源划分为图3中的主40MHz(包括图3中的主20MHz、辅20MHz)和辅40MHz。同样,辅40MHz也包括主20MHz和辅20MHz(图中未示出)。然后,将图3中的辅20MHz中的单个大小为26-tone(图中RU的大小仅为示意,不代表资源的实际大小)的资源单元(RU,Resource Unit)分配为承载唤醒消息的第一频率资源,并分配给一个第二无线设备;同时,将图3中的辅20MHz中的其他RU空置。将图3中的主20MHz和辅40MHz分配为承载非唤醒消息的第二频率资源,并分别分配给两个不同的第三无线设备。当然,上述分配频率资源的方法仅仅是一种示例,其他的分配频率资源的方法均在本发明的保护范围内。图3中,黑色的方框表示前导,白色的方框表示负载中空置的RU,浅灰色的方框表示负载中分配给唤醒消息的RU,深灰色的方框表示负载中分配给非唤醒消息的RU。
其中,第一无线设备可以采用信标(Beacon)帧以广播的方式将频率资源池的位置信息发送给第二无线设备。
可选的,第二无线设备的WUR模块根据频率资源池的位置信息在第一频率资源处接收到唤醒消息包括:
第二无线设备的WUR模块判断出频率资源池中的频率资源唯一,在频率资源池中的频率资源处接收到所述唤醒消息;
或,第二无线设备的WUR模块判断出频率资源池中的频率资源不唯一,通过逐频率资源扫描的方式寻找唤醒消息所在的频率资源池中的频率资源,并在该频率资源处接收唤醒消息。
可选的,第二无线设备的唤醒接收器WUR模块在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息包括:
第二无线设备的WUR模块根据预先设置的第一频率资源的位置信息在第一频率资源处接收到唤醒消息。
步骤502、第三无线设备接收无线帧。
可选的,该方法之前还包括:
第一无线设备根据第二频率资源为每一个第三无线设备分配对应的第三频率资源,将分配给每一个第三无线设备的第三频率资源的位置信息设置在信令信息中;相应的,
第三无线设备在接收到无线帧后,根据信令信息中分配给每一个第三无线设备的第三频率资源的位置信息在第二频率资源处译码接收到的无线帧的负载。
其中,信令信息包括HE SIG-A字段和HE SIG-B字段。
第一无线设备在完成对第一频率资源、第二频率资源和第三频率资源的分配之后,对无线帧的前导中的信令域(包括HE SIG-A字段和HE SIG-B字段)进行填充。
其中,HE SIG-A字段中的带宽域填充为0010。HE SIG-B字段中的中心26-tone的RU域填0;HE SIG-B字段中第二无线设备所对应的站点ID域填充为11111111110(2046);HE SIG-A字段和HE SIG-B字段中的其他信令 域的填充方式可参考协议802.11ax的相关规定。
可选的,该方法之前还包括:
第一无线设备使用第一调制技术调制无线帧的前导;使用第一调制技术和第二调制技术共同调制无线帧的负载中的唤醒消息;使用第一调制技术调制所述无线帧的负载中的非唤醒消息。
其中,第一调制技术包括OFDM,第二调制技术包括简单调制技术。
其中,简单调制技术包括以下的任意一种:
OOK、ASK、FSK、PSK等。
例如,当以OFDM和ASK共同调制唤醒消息时,被调制到第一频率资源上的信号的幅度有M=2k种取值分别为A1至AM,对应k个信息比特。以M=4为例(其他情况依此类推),其中Am=2m-1-M(这里Am的取值并不代表信号幅值的实际大小,仅仅表示一种相对关系),m=1,2,…,M。A1=-3,可以代表2个信息比特‘00’;A2=-1,可以代表2个信息比特‘01’;A3=1,可以代表2个信息比特‘10’;A4=3,可以代表2个信息比特‘01’。需要说明的是:当M=2时,OFDM+ASK的调制组合实质就是OFDM+OOK的调制组合。其中,A1=0;A2=C(C为常数)。
当以OFDM和FSK共同调制唤醒消息时,被调制到第一频率资源上的信号的中心载频有M=2k种不同的取值,分别为f1至fM,对应k个信息比特。
当以OFDM和PSK共同调制唤醒消息时,被调制到第一频率资源上的信号的相位有M=2k种不同的取值,分别为P1至PM,对应k个信息比特。
可选的,该方法之前还包括:
第一频率资源和第二频率资源之间存在空置的频率资源。
这些空置的频率资源作为第一频率资源和第二频率资源之间的保护带。
可选的,主工作模块包括主发送模块,该方法还包括:
第二无线设备的主发送模块在被唤醒之后,再次休眠之前,向第一无线设备发送反馈信息;其中,反馈信息包括无线帧的负载中,承载唤醒消息的第一频率资源和承载非唤醒消息的第二频率资源之间被空置的频率资源的 大小;相应的,
第一频率资源和第二频率资源之间存在空置的频率资源包括:
第一频率资源和第二频率资源之间存在大小为反馈信息中的资源大小的空置的频率资源。
或者,第一频率资源和第二频率资源之间存在大小为预设大小的空置的频率资源。
可选的,该方法还包括:
第二无线设备的WUR模块在第一无线设备发送的无线帧的负载的一个或多个第一频率资源处接收到唤醒消息后,在唤醒第二无线设备的主工作模块之前,判断出自身是目标设备。
可选的,当第二无线设备的WUR模块判断出自身不是目标设备,则不执行唤醒主工作模块的操作。
可选的,第二无线设备的WUR模块可以采用以下方式判断自身是否是目标设备:判断唤醒消息是否是广播消息,如果是广播消息,则判断出自身是目标设备;如果不是广播消息,则判断唤醒消息中是否包括自身的设备标识;如果唤醒消息中包括自身的设备标识,则判断出自身是目标设备;如果唤醒消息中不包括自身的设备标识,则判断出自身不是目标设备。
当然,上述的判断方法仅仅是一种示例,第二无线设备的WUR模块还可以采用其他的方式来判断自身是否是目标设备,这里不再赘述。
下面通过几个具体的示例说明上述实施例的具体实现。
示例1
在BSS(如图2所示)内,假设AP和站点(STA,Station)均支持802.11ax。部分站点的主工作模块处于休眠状态,而WUR模块处于正常工作状态;另外一部分站点的主工作模块处于正常工作状态,而WUR模块处于休眠状态(或者,该部分站点无WUR模块,其主工作模块处于正常工作状态)。AP在向主工作模块处于休眠状态的站点发送唤醒消息的同时,还要向处于主工作模块处于正常工作状态的站点发送业务消息和非业务类的其他消息中至少一种。
AP为唤醒消息分配第一频率资源,为业务消息和非业务类的其他消息中至少一种分配与第一频率资源不同的第二频率资源。以连续80MHz的频率资源为例(如图3所示),AP将唤醒消息分配在辅20MHz的单个大小为26-tone的RU上(这里仅以辅20MHz为例,实际情况并不局限于此;图中RU的大小仅为示意,不代表资源的实际大小),并将在20MHz的单个大小为26-tone的RU的位置信息发送给主工作模块处于休眠状态的站点;将业务消息和非业务类的其他消息中至少一种分配在其余60MHz的频率资源上。
对于辅20MHz,除唤醒消息所分配RU外,其他RU全部为空,即不承载任何消息。
AP根据第二频率资源为每一个主工作模块处于正常工作状态的站点分配第三频率资源,根据每一个主工作模块处于正常工作状态的站点的第三频率资源填充HE SIG-B字段中与资源分配相关的信令域。
其中,前导的HE SIG-A字段中的带宽域填充为0010。HE SIG-B字段中的中心26-tone的RU域填充为0;HE SIG-B字段中第二无线设备所对应的站点ID域填充为11111111110(2046);HE SIG-A字段和HE SIG-B字段中的其他信令域的填充方式可参考协议802.11ax的相关规定。
AP用OFDM调制前导,用OFDM调制业务消息和其他非业务类的消息中至少一种。
AP用OOK和OFDM共同调制唤醒消息。被调制到第一频率资源上的信号的幅度有2种取值,分别为A1=0至A2=C(C为常数),对应1个信息比特。
最后,AP向主工作模块处于休眠状态和正常工作状态的站点发送该多用户无线帧。
处于正常工作状态的WUR模块通过窄带滤波器获得特定RU上的唤醒消息。如果正确接收(即同步完成和校验正确)唤醒消息,且判断出唤醒消息中包括自身的站点标识,那么WUR模块唤醒主工作模块;如果没有正确接收唤醒消息,不执行唤醒主工作模块的操作。
主工作模块处于正常工作状态的(11ax)目标站点根据前导中的信令信息,在相应的RU上接收AP发送的业务消息和非业务类的其他消息中至少一种。
示例2
在发送包含唤醒消息的无线帧之前,AP利用信标(Beacon)帧广播唤醒消息的频率资源池(即唤醒消息的所有可用频率资源,包括大小、位置等信息)。如果频率资源池中的频率资源唯一,那么WUR模块在该频率资源上接收唤醒消息。如果频率资源池中的频率资源不唯一,那么WUR模块通过逐频带扫描的方式寻找到唤醒消息所在的频率资源,并在该频率资源上接收唤醒消息。
示例3
基本假设和设置与示例1类似。不同点在于,在唤醒消息所在的辅20MHz上,除了唤醒消息和被空置的RU外,还存在业务消息和非业务类的其他消息中至少一种,即AP将辅20MHz的部分频率资源分配给了等待接收业务消息和非业务类的其他消息中的至少一种的主工作模块处于正常工作状态的(11ax)目标站点。与唤醒消息所在RU相邻的被空置的频率资源的大小由被唤醒的主工作模块在再次休眠前反馈给AP。
示例4
基本假设和设置与示例1类似。不同点在于,为了降低信道的频率选择性所带来的影响,AP选择在辅20MHz的多个(连续或非连续的)RU上发送相同的唤醒消息。需要说明的是:为了理解方便,本示例将承载唤醒消息的RU全部设定在辅20MHz上。但这并不代表上述发送方式是AP唯一的选择。实际上,在能力允许的范围内,AP可以将任意的一个或多个(连续或非连续的)RU用于承载唤醒消息。目标站点的WUR模块可以选择在被通知的一个或多个承载唤醒消息的RU上同时接收上述唤醒消息。
示例5
基本假设和设置与示例1类似。不同点在于,唤醒消息的时长不等于非唤醒消息的时长。即唤醒消息的时长大于非唤醒消息的时长;或者,唤醒消 息的时长小于非唤醒消息的时长。AP应以唤醒消息的时长和非唤醒消息的时长中的最大值填充前导的L-SIG字段中的长度域。
参见图6,本发明实施例提出了一种第一无线设备,包括:
发送模块600,设置为分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧;
其中,无线帧的负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在第一频率资源上,非唤醒消息被分配在与第一频率资源或第一频率资源所在的频率资源池不同的第二频率资源上。
可选的,无线帧包括前导和负载;发送模块600是设置为:
先分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧的前导,在发送完所述无线帧的前导后,再分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧的负载。
可选的,还包括:
调制模块603,设置为使用第一调制技术调制无线帧的前导;使用第一调制技术和第二调制技术共同调制无线帧的负载中的唤醒消息;使用第一调制技术调制无线帧的负载中的非唤醒消息。
可选的,还包括:
分配模块601,设置为为唤醒消息分配第一频率资源或频率资源池;其中,频率资源池包括第一频率资源;
发送模块600还设置为:
将第一频率资源的位置信息或频率资源池的位置信息发送给第二无线设备。
可选的,无线帧的前导承载服务于非唤醒消息的信令信息,且无线帧的前导占据无线帧的所有频率资源;
第一无线设备还包括:
分配模块601,设置为根据第二频率资源为每一个第三无线设备分配对应的第三频率资源;
设置模块602,设置为将分配给每一个第三无线设备的第三频率资源的位置信息设置在信令信息中。
上述第一无线设备的具体实现可以参考图1所示实施例的唤醒方法,这里不再赘述。
参见图7,本发明实施例提出了一种第二无线设备,包括:
唤醒接收器WUR模块701,设置为在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息,唤醒第二无线设备的主工作模块。
可选的,WUR模块701是设置为:
在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息,判断出自身是目标设备,唤醒第二无线设备的主工作模块702。
可选的,WUR模块701是设置为:
接收到来自第一无线设备的第一频率资源的位置信息或频率资源池的位置信息;其中,所述频率资源池包括第一频率资源;
根据接收到的第一频率资源的位置信息在第一频率资源处接收到唤醒消息;或者,根据接收到的频率资源池的位置信息在第一频率资源处接收到唤醒消息;或者,根据预先设置的第一频率资源的位置信息在第一频率资源处接收到唤醒消息;
唤醒第二无线设备的主工作模块702。
可选的,WUR模块701是设置为采用以下方式实现根据频率资源池的位置信息在第一频率资源处接收到唤醒消息:
判断出频率资源池中的频率资源唯一,在频率资源池中的频率资源处接收到唤醒消息;
或,判断出频率资源池中的频率资源不唯一,通过逐频率资源扫描的方式寻找唤醒消息所在的频率资源池中的频率资源,并在该频率资源处接收唤醒消息。
可选的,WUR模块701是设置为采用以下方式实现在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息:
根据预先设置的第一频率资源的位置信息在第一频率资源处接收到唤醒消息。
可选的,主工作模块702包括主发送模块7021;
主发送模块7021,设置为在被唤醒之后,再次休眠之前,向第一无线设备发送反馈信息;其中,反馈信息包括无线帧的负载中,承载唤醒消息的第一频率资源和承载非唤醒消息的第二频率资源之间被空置的频率资源的大小。
上述第二无线设备的具体实现可以参考图4所示实施例的唤醒方法,这里不再赘述。
参见图8,本发明实施例提出了一种唤醒系统,包括:第一无线设备800、第二无线设备801和第三无线设备802;其中,第二无线设备801包括唤醒接收器WUR模块701和主发送模块702;
其中,第一无线设备800,设置为分别向一个或一个以上第二无线设备801和一个或一个以上第三无线设备802发送无线帧;
其中,无线帧的负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在负载的第一频率资源上,非唤醒消息被分配在负载的与第一频率资源或第一频率资源所在的频率资源池不同的第二频率资源上;
第二无线设备801的唤醒接收器WUR模块701,设置为在第一无线设备800发送的无线帧的负载的第一频率资源处接收到唤醒消息,唤醒第二无线设备801的主工作模块702;
第三无线设备802,设置为接收无线帧。
可选的,第一无线设备800还设置为:
为唤醒消息分配第一频率资源或频率资源池,将第一频率资源的位置信息或频率资源池的位置信息发送给第二无线设备801;其中,所述频率资源池包括第一频率资源;
第二无线设备801的WUR模块701是设置为采用以下方式实现在第一无线设备800发送的无线帧的负载的第一频率资源处接收到唤醒消息:
根据接收到的第一频率资源的位置信息或频率资源池的位置信息在第 一频率资源处接收到唤醒消息。
可选的,第二无线设备801的唤醒接收器WUR模块701是设置为采用以下方式实现在第一无线设备800发送的无线帧的负载的第一频率资源处接收到唤醒消息:
根据预先设置的第一频率资源的位置信息在第一频率资源处接收到唤醒消息。
可选的,第二无线设备801的WUR模块701是设置为:
在第一无线设备800发送的无线帧的负载的第一频率资源处接收到唤醒消息,判断出自身是目标设备,唤醒第二无线设备801的主工作模块702。
上述唤醒系统的具体实现可以参考图5所示实施例的唤醒方法,这里不再赘述。
本发明实施例还提供了一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令被处理器执行时实现上述实施例所述的方法。
本领域普通技术人员可以理解,上文中所公开方法中的全部或某些步骤、系统、装置中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。在硬件实施方式中,在以上描述中提及的功能模块/单元之间的划分不一定对应于物理单元的划分;例如,一个物理组件可以具有多个功能,或者一个功能或步骤可以由若干物理组件合作执行。某些组件或所有组件可以被实施为由处理器,如数字信号处理器或微处理器执行的软件,或者被实施为硬件,或者被实施为集成电路,如专用集成电路。这样的软件可以分布在计算机可读介质上,计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的,术语计算机存储介质包括用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、 闪存或其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外,本领域技术人员公知的是,通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据,并且可包括任何信息递送介质。
虽然本发明所揭露的实施方式如上,但所述的内容仅为便于理解本发明而采用的实施方式,并非用以限定本发明。任何本发明所属领域内的技术人员,在不脱离本发明所揭露的精神和范围的前提下,可以在实施的形式及细节上进行任何的修改与变化,但本发明的专利保护范围,仍须以所附的权利要求书所界定的范围为准。
工业实用性
通过本发明实施例的方法,将唤醒消息和非唤醒消息承载在同一个无线帧中,发送给第二无线设备和第三无线设备,使得第一无线设备能够在一段时间内使用连续的大带宽资源在同一无线帧内携带唤醒消息和非唤醒消息的同时,提升频谱资源的利用率。

Claims (31)

  1. 一种唤醒方法,包括:
    第一无线设备分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧(100);
    其中,无线帧的负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在第一频率资源上,非唤醒消息被分配在与第一频率资源或第一频率资源所在的频率资源池不同的第二频率资源上。
  2. 根据权利要求1所述的唤醒方法,其中,所述无线帧包括前导和负载;所述第一无线设备发送无线帧(100)包括:
    所述第一无线设备先发送所述无线帧的前导,在发送完所述无线帧的前导后,发送所述无线帧的负载。
  3. 根据权利要求2所述的唤醒方法,其中,所述无线帧的前导承载服务于所述非唤醒消息的信令信息,且所述无线帧的前导占据所述无线帧的所有频率资源;
    所述方法还包括:
    第一无线设备分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧(100)之前,
    所述第一无线设备根据所述第二频率资源为每一个所述第三无线设备分配对应的第三频率资源,将分配给每一个所述第三无线设备的第三频率资源的位置信息设置在所述信令信息中。
  4. 根据权利要求1所述的唤醒方法,该方法还包括:
    所述第一无线设备向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧(100)之前,所述第一无线设备使用第一调制技术调制所述无线帧的前导;使用所述第一调制技术和第二调制技术共同调制所述无线帧的负载中的唤醒消息;使用所述第一调制技术调制所述无线帧的负载中的非唤醒消息(101)。
  5. 根据权利要求4所述的唤醒方法,其中,所述第一调制技术包括正 交频分复用技术OFDM,所述第二调制技术包括简单调制技术。
  6. 根据权利要求5所述的唤醒方法,其中,所述简单调制技术包括以下的任意一种:
    启闭键控OOK、幅移键控ASK、频移键控FSK、相移键控PSK。
  7. 根据权利要求1所述的唤醒方法,所述方法还包括:
    第一无线设备分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧(100)之前,
    所述第一无线设备为所述唤醒消息分配第一频率资源或频率资源池,将所述第一频率资源的位置信息或所述频率资源池的位置信息发送给所述第二无线设备(102);
    其中,所述频率资源池包括所述第一频率资源。
  8. 根据权利要求7所述的唤醒方法,其中,所述分配第一频率资源或频率资源池包括:所述第一无线设备使用多址技术为所述唤醒消息分配所述第一频率资源或频率资源池。
  9. 根据权利要求8所述的唤醒方法,其中,所述多址技术包括频分多址FDMA技术或正交频分多址OFDMA技术。
  10. 根据权利要求1、4或7所述的唤醒方法,其中,所述唤醒消息的时长等于非唤醒消息的时长;或者,所述唤醒消息的时长大于所述非唤醒消息的时长;或者,所述唤醒消息的时长小于所述非唤醒消息的时长。
  11. 根据权利要求1、4或7所述的唤醒方法,其中,所述第二无线设备的主工作模块处于休眠状态,所述第二无线设备的唤醒接收器WUR模块处于正常工作状态;所述第三无线设备的主工作模块处于正常工作状态。
  12. 根据权利要求1、4或7所述的唤醒方法,其中,所述第一频率资源和所述第二频率资源之间存在空置的频率资源。
  13. 根据权利要求12所述的唤醒方法,该方法还包括:第一无线设备分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧(100)之前,
    所述第一无线设备接收到来自所述第二无线设备的反馈信息;
    所述第一频率资源和第二频率资源之间存在空置的频率资源包括:
    所述第一频率资源和所述第二频率资源之间存在大小为所述反馈信息中指示的资源大小的空置的频率资源;
    或者,所述第一频率资源和所述第二频率资源之间大小为预设大小的空置的频率资源。
  14. 根据权利要求1、4或7所述的唤醒方法,其中,所述第一频率资源包括一个或多个资源单元RU;
    当第一频率资源包括多个RU时,所述唤醒消息被分配在负载的第一频率资源上包括:所述唤醒消息被分配在所述第一频率资源的每一个RU上。
  15. 一种唤醒方法,包括:
    第二无线设备的唤醒接收器WUR模块在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息(400);
    第二无线设备的WUR模块,唤醒第二无线设备的主工作模块(401)。
  16. 根据权利要求15所述的唤醒方法,该方法还包括:
    所述第二无线设备的WUR模块在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息后,在所述唤醒第二无线设备的主工作模块之前,判断出自身是目标设备。
  17. 根据权利要求15或16所述的唤醒方法,该方法还包括:
    第二无线设备的唤醒接收器WUR模块在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息(400)之前,
    所述第二无线设备的WUR模块接收到来自所述第一无线设备的第一频率资源的位置信息或频率资源池的位置信息;其中,频率资源池包括所述第一频率资源;
    所述第二无线设备的WUR模块在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息包括:
    所述第二无线设备的WUR模块根据接收到的第一频率资源的位置信息 在所述第一频率资源处接收到所述唤醒消息;
    或者,所述第二无线设备的WUR模块根据接收到的频率资源池的位置信息在所述第一频率资源处接收到所述唤醒消息;
    或者,所述第二无线设备的WUR模块根据预先设置的第一频率资源的位置信息在所述第一频率资源处接收到所述唤醒消息。
  18. 根据权利要求17所述的唤醒方法,其中,所述第二无线设备的WUR模块根据接收到的频率资源池的位置信息在第一频率资源处接收到唤醒消息包括:
    所述第二无线设备的WUR模块判断出所述频率资源池中的频率资源唯一,在所述频率资源池中的频率资源处接收到所述唤醒消息;
    或,所述第二无线设备的WUR模块判断出所述频率资源池中的频率资源不唯一,通过逐频率资源扫描的方式寻找所述唤醒消息所在的频率资源池中的频率资源,并在该频率资源处接收所述唤醒消息。
  19. 根据权利要求15或16所述的唤醒方法,其中,所述主工作模块包括主发送模块,该方法还包括:
    所述第二无线设备的主发送模块在被唤醒之后,再次休眠之前,向所述第一无线设备发送反馈信息;其中,反馈信息包括所述无线帧的负载中,承载所述唤醒消息的第一频率资源和承载非唤醒消息的第二频率资源之间被空置的频率资源的大小。
  20. 一种唤醒方法,包括:
    第一无线设备分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧(500);
    其中,无线帧的负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在第一频率资源上,非唤醒消息被分配在与第一频率资源或第一频率资源所在的频率资源池不同的第二频率资源上;
    第二无线设备的唤醒接收器WUR模块在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息,唤醒第二无线设备的主工作模块(501);
    第三无线设备接收无线帧(502)。
  21. 一种第一无线设备,包括:
    发送模块(600),设置为分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送无线帧;
    其中,无线帧的负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在第一频率资源上,非唤醒消息被分配在与第一频率资源或第一频率资源所在的频率资源池不同的第二频率资源上。
  22. 根据权利要求21所述的第一无线设备,其中,所述无线帧包括前导和负载;所述发送模块(600)是设置为:
    先分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送所述无线帧的前导,在发送完所述无线帧的前导后,再分别向一个或一个以上第二无线设备和一个或一个以上第三无线设备发送所述无线帧的负载。
  23. 根据权利要求22所述的第一无线设备,其中,所述无线帧的前导承载服务于所述非唤醒消息的信令信息,且所述无线帧的前导占据所述无线帧的所有频率资源;
    所述第一无线设备还包括:
    分配模块(601),设置为根据所述第二频率资源为每一个所述第三无线设备分配对应的第三频率资源;
    设置模块(602),设置为将分配给每一个所述第三无线设备的第三频率资源的位置信息设置在所述信令信息中。
  24. 根据权利要求21所述的第一无线设备,还包括:
    调制模块(603),设置为使用第一调制技术调制所述无线帧的前导;使用所述第一调制技术和第二调制技术共同调制所述无线帧的负载中的唤醒消息;使用所述第一调制技术调制所述无线帧的负载中的非唤醒消息。
  25. 根据权利要求21或24所述的第一无线设备,还包括:
    分配模块(601),设置为为所述唤醒消息分配所述第一频率资源或频 率资源池;其中,频率资源池包括所述第一频率资源;
    所述发送模块(600)还设置为:
    将所述第一频率资源的位置信息或所述频率资源池的位置信息发送给所述第二无线设备。
  26. 一种第二无线设备,包括:
    唤醒接收器WUR模块(701),设置为在第一无线设备发送的无线帧的负载的第一频率资源处接收到唤醒消息,唤醒第二无线设备的主工作模块(702)。
  27. 根据权利要求26所述的第二无线设备,其中,所述WUR模块(701)是设置为:
    在所述第一无线设备发送的无线帧的负载的所述第一频率资源处接收到所述唤醒消息,判断出自身是目标设备,唤醒所述第二无线设备的主工作模块(702)。
  28. 根据权利要求26所述的第二无线设备,其中,所述WUR模块(701)是设置为:
    接收到来自所述第一无线设备的所述第一频率资源的位置信息或频率资源池的位置信息;其中,所述频率资源池包括所述第一频率资源;
    根据接收到的第一频率资源的位置信息在所述第一频率资源处接收到所述唤醒消息;或者,根据接收到的频率资源池的位置信息在所述第一频率资源处接收到所述唤醒消息;或者,根据预先设置的第一频率资源的位置信息在所述第一频率资源处接收到所述唤醒消息;
    唤醒第二无线设备的主工作模块(702)。
  29. 根据权利要求28所述的第二无线设备,其中,所述WUR模块(701)是设置为采用以下方式实现根据频率资源池的位置信息在第一频率资源处接收到唤醒消息:
    判断出所述频率资源池中的频率资源唯一,在所述频率资源池中的频率资源处接收到所述唤醒消息;
    或,判断出所述频率资源池中的频率资源不唯一,通过逐频率资源扫描的方式寻找所述唤醒消息所在的频率资源池中的频率资源,并在该频率资源处接收所述唤醒消息。
  30. 根据权利要求26所述的第二无线设备,其中,所述主工作模块(702)包括主发送模块(7021);
    所述主发送模块(7021),设置为在被唤醒之后,再次休眠之前,向所述第一无线设备发送反馈信息;其中,反馈信息包括所述无线帧的负载中,承载所述唤醒消息的第一频率资源和承载非唤醒消息的第二频率资源之间被空置的频率资源的大小。
  31. 一种唤醒系统,包括:第一无线设备(800)、第二无线设备(801)和第三无线设备(802);其中,第二无线设备(801)包括唤醒接收器WUR模块(701)和主工作模块(702);
    其中,第一无线设备(800),设置为分别向一个或一个以上第二无线设备(801)和一个或一个以上第三无线设备(802)发送无线帧;
    其中,无线帧的负载承载唤醒消息和非唤醒消息,且唤醒消息被分配在第一频率资源上,非唤醒消息被分配在与第一频率资源或第一频率资源所在的频率资源池不同的第二频率资源上;
    第二无线设备(801)的唤醒接收器WUR模块(701),设置为在第一无线设备(800)发送的无线帧的负载的第一频率资源处接收到唤醒消息,唤醒第二无线设备(801)的主工作模块(702);
    第三无线设备(802),设置为接收无线帧。
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