WO2021135413A1 - 一种节能控制方法及相关设备 - Google Patents

一种节能控制方法及相关设备 Download PDF

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Publication number
WO2021135413A1
WO2021135413A1 PCT/CN2020/116464 CN2020116464W WO2021135413A1 WO 2021135413 A1 WO2021135413 A1 WO 2021135413A1 CN 2020116464 W CN2020116464 W CN 2020116464W WO 2021135413 A1 WO2021135413 A1 WO 2021135413A1
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WIPO (PCT)
Prior art keywords
energy
saving
information
sta
energy saving
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PCT/CN2020/116464
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English (en)
French (fr)
Inventor
吕捷
谌金豆
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华为技术有限公司
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Publication of WO2021135413A1 publication Critical patent/WO2021135413A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a power saving command
    • 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

  • This application relates to the field of equipment energy saving, and in particular to an energy saving control method and related equipment.
  • a wireless local area network (Wireless Local Area Network, WLAN) is a network formed by replacing part or all of the transmission media in a wired LAN with wireless channels of various radio waves (such as laser, infrared, and radio frequency, etc.).
  • a station (Station, STA) accesses the network through an access point (AccessPoint, AP).
  • AccessPoint AccessPoint
  • the most common STA in life is a mobile phone. Battery-powered STAs like mobile phones have a strong demand for energy saving due to their standby time requirements. If there is no business traffic, the phone will go to sleep and turn off the transceiver to save energy.
  • the STA When the STA sends data to the AP, the STA uses 1 bit in the Media Access Control (MAC) frame header to indicate the energy-saving state. If the bit is 1, it means that the STA will switch to the energy-saving state after sending the data frame, but in the data frame sent by the AP to the STA, this 1 bit will be ignored. In other words, if the STA determines that it has no messages to send to the AP, it switches to the energy-saving state. However, after the STA is switched to the energy-saving state, the AP may still have data to send to the STA, which will cause delay in service transmission and affect user experience.
  • MAC Media Access Control
  • the embodiments of the present application provide an energy-saving control method and related equipment.
  • an embodiment of the present application provides an energy-saving control method.
  • the method includes the following steps.
  • the STA receives the data frame sent by the AP, where the data frame includes a frame control field, and the energy management field in the frame control field is used to indicate the first energy-saving information.
  • the first energy-saving information is sent by the AP to the STA according to the service
  • the business information of is determined, and the first energy saving information includes energy saving allowed or energy saving prohibited.
  • the STA may also obtain local second energy saving information, and the second energy saving information also includes energy saving allowed or energy saving prohibited. If the first energy saving information and the second energy saving information are the same, the STA determines whether to switch to the energy saving state according to the first energy saving information or the second energy saving information. It is an energy-saving state. If the first energy saving information and the second energy saving information are different, then the STA or AP still has data to send to the other party, and the STA remains in the awake state.
  • whether the STA switches to the energy-saving state is no longer unilaterally determined by the STA, and it is also necessary to refer to the AP's energy-saving requirements to finally determine whether to switch to the energy-saving state. This avoids the situation where the AP still has data to send to the STA, but the STA has switched to the energy-saving state and cannot receive the data, which improves the user experience.
  • the energy management field includes target bits. If the target bit is 1, the first energy saving information is that energy saving is allowed. If the target bit is 0, the first energy saving information is that energy saving is prohibited.
  • the data frame further includes an extension field
  • the extension field is used to indicate the energy-saving level of the energy-saving state
  • the energy-saving level includes allowing the energy-saving state in the energy-saving state. At least one of the rate of the frame received by the STA, the length of time the STA enters the energy-saving state, and the frequency at which the STA enters the energy-saving state.
  • the STA can determine the energy-saving level while switching to the energy-saving state according to the instruction of the data frame sent by the AP.
  • the energy-saving state of the STA corresponds to multiple energy-saving levels, and different energy-saving levels indicate the degree to which the STA enters sleep. It is convenient to adjust the energy-saving state according to the actual situation, which improves the flexibility of the scheme.
  • the STA and the AP will exchange capability information. Specifically, the STA sends a first capability information set to the AP, where the first capability information set includes the STA's ability to recognize the first energy saving information. The STA receives a second set of capability information sent by the AP, where the second set of capability information includes the ability of the AP to indicate the first energy saving information through a data frame.
  • the AP and the STA can determine whether the other party has the same function through capability information exchange. On the basis that both parties have the same function, the AP sends the data frame indicating the first energy-saving information to the STA. Significantly, it avoids the situation that the STA cannot refer to the energy-saving information of the AP for energy-saving because the two parties have not reached an agreement.
  • the first capability information set sent by the STA to the AP may not only include the STA's ability to identify the first energy-saving information, but also include the STA's ability to identify the energy-saving level.
  • the second set of capability information sent by the AP to the STA may not only include the ability of the AP to indicate the first energy-saving information through a data frame, but also include the ability of the AP to indicate the energy-saving level through a data frame.
  • the capability information exchange between the STA and the AP also includes the energy-saving level, which improves the scalability of the solution.
  • the service information includes the delay requirements of the service, historical traffic statistics of the service, the sending frequency of the service, and the information of the service in the buffer of the AP. At least one item in the remaining amount.
  • an embodiment of the present application provides an energy-saving control method.
  • the method includes the following steps.
  • the AP determines the energy saving information of the STA according to the service information of the service that it sends to the STA, and the energy saving information includes energy saving allowed or energy saving prohibited. After that, the AP generates a data frame according to the energy saving information, the data frame includes a frame control field, and the energy management field of the frame control field is used to indicate the energy saving information. Furthermore, the AP sends the data frame to the STA, so that the STA determines whether to switch to the energy-saving state according to the energy-saving information.
  • the energy management field includes a target bit; if the target bit is 1, the energy saving information is energy saving allowed; if the target bit is 0, the energy saving The message is that energy saving is prohibited.
  • the data frame further includes an extension field
  • the extension field is used to indicate the energy-saving level of the energy-saving state
  • the energy-saving level includes allowing the energy-saving state in the energy-saving state. At least one of the rate of the frame received by the STA, the length of time the STA enters the energy-saving state, and the frequency at which the STA enters the energy-saving state.
  • the method before the AP generates the data frame, the method further includes:
  • the AP sends a second set of capability information to the STA, where the second set of capability information includes the ability of the AP to indicate the first energy saving information through the data frame.
  • the method before the AP generates the data frame, the method further includes:
  • the STA Receiving, by the AP, a first capability information set sent by the STA, where the first capability information set includes the ability of the STA to identify the first energy saving information and the energy saving level;
  • the AP sends a second set of capability information to the STA, where the second set of capability information includes the ability of the AP to indicate the first energy saving information and the energy saving level through the data frame.
  • the service information includes the delay requirements of the service, historical traffic statistics of the service, the sending frequency of the service, and the information of the service in the buffer of the AP. At least one item in the remaining amount.
  • an embodiment of the present application provides a STA, including:
  • a processor a memory, and a transceiver.
  • the processor, the memory, and the transceiver are interconnected by wires, and instructions are stored in the memory.
  • the transceiver is configured to receive a data frame sent by an access point AP, the data frame includes a frame control field, and the energy management field in the frame control field is used to indicate first energy-saving information, and the first energy-saving information is controlled by the
  • the AP is determined according to the service information of the service sent by the AP to the STA, and the first energy saving information includes energy saving allowed or energy saving prohibited.
  • the processor is used to execute the following steps.
  • the second energy saving information includes energy saving allowed or energy saving prohibited. If the first energy saving information and the second energy saving information are the same, determining whether to switch to the energy saving state according to the first energy saving information or the second energy saving information. If the first energy saving information and the second energy saving information are different, the awake state is maintained.
  • the energy management field includes a target bit; if the target bit is 1, the first energy saving information is energy saving allowed; if the target bit is 0, then The first energy saving information is prohibition of energy saving.
  • the data frame further includes an extension field
  • the extension field is used to indicate the energy-saving level of the energy-saving state
  • the energy-saving level includes allowing the energy-saving state in the energy-saving state. At least one of the rate of the frame received by the STA, the length of time the STA enters the energy-saving state, and the frequency at which the STA enters the energy-saving state.
  • the transceiver is further configured to send a first capability information set to the AP, where the first capability information set includes the identification of the first energy saving information by the STA ability.
  • the transceiver is further configured to receive a second capability information set sent by the AP, where the second capability information set includes the ability of the AP to indicate the first energy saving information through the data frame.
  • the transceiver is further configured to send a first capability information set to the AP, where the first capability information set includes the first energy saving information of the STA And the ability to identify the energy-saving level.
  • the transceiver is further configured to receive a second capability information set sent by the AP, where the second capability information set includes the ability of the AP to indicate the first energy saving information and the energy saving level through the data frame.
  • the service information includes the delay requirements of the service, historical traffic statistics of the service, the sending frequency of the service, and the information of the service in the buffer of the AP. At least one item in the remaining amount.
  • an embodiment of the present application provides an AP, including:
  • a processor a memory, and a transceiver.
  • the processor, the memory, and the transceiver are interconnected by wires, and instructions are stored in the memory.
  • the processor is used to perform the following steps.
  • the energy saving information of the STA is determined according to the service information of the service sent by the transceiver to the station STA, and the energy saving information includes energy saving allowed or energy saving prohibited.
  • Generating a data frame according to the energy saving information the data frame including a frame control field, and an energy management field in the frame control field is used to indicate the energy saving information;
  • the transceiver is configured to send the data frame to the STA, so that the STA determines whether to switch to the energy-saving state according to the energy-saving information.
  • the energy management field includes a target bit; if the target bit is 1, the energy saving information is energy saving allowed; if the target bit is 0, the energy saving The message is that energy saving is prohibited.
  • the data frame further includes an extension field
  • the extension field is used to indicate the energy-saving level of the energy-saving state
  • the energy-saving level includes allowing the energy-saving state in the energy-saving state. At least one of the rate of the frame received by the STA, the length of time the STA enters the energy-saving state, and the frequency at which the STA enters the energy-saving state.
  • the transceiver is further configured to receive a first capability information set sent by the STA, where the first capability information set includes the ability of the STA to recognize the energy saving information .
  • the transceiver is further configured to send a second set of capability information to the STA, where the second set of capability information includes the ability of the AP to indicate the first energy saving information through the data frame.
  • the transceiver is further configured to receive a first capability information set sent by the STA, where the first capability information set includes the STA’s contribution to the first energy saving Information and the ability to identify the energy-saving level.
  • the transceiver is further configured to send a second set of capability information to the STA, where the second set of capability information includes the ability of the AP to indicate the first energy saving information and the energy saving level through the data frame.
  • the service information includes the delay requirements of the service, historical traffic statistics of the service, the sending frequency of the service, and the remaining amount of the service in the memory At least one of.
  • the STA may receive the data frame sent by the AP, and identify the first energy saving information determined by the AP through the data frame.
  • the STA locally includes the second energy-saving information, and both the first energy-saving information and the second energy-saving information include energy saving allowed or energy saving prohibited.
  • the STA determines whether to switch to the energy-saving state in combination with the first energy-saving information and the local second energy-saving information. In other words, whether the STA is switched to the energy-saving state is no longer unilaterally determined by the STA, and it is also necessary to refer to the AP's energy-saving requirements to finally determine whether to switch to the energy-saving state. This avoids the situation where the AP still has data to send to the STA, but the STA has switched to the energy-saving state and cannot receive the data, which improves the user experience.
  • Figure 1 is a schematic diagram of a wireless local area network system
  • FIG. 2 is a schematic diagram of an embodiment of the energy-saving control method in this application.
  • Figure 3 is a schematic diagram of a frame structure of a MAC frame
  • Figure 4 is a schematic diagram of a structure of a frame control field
  • FIG. 5 is a schematic diagram of another embodiment of the energy-saving control method in this application.
  • Fig. 6 is a schematic diagram of another frame structure of a MAC frame
  • Figure 7 is a schematic structural diagram of a possible AP
  • Fig. 8 is a schematic structural diagram of a possible STA.
  • the embodiments of the present application provide an energy-saving control method and related equipment. Whether a STA switches to an energy-saving state is no longer unilaterally determined by the STA, and it is necessary to refer to the AP's energy-saving requirements to finally determine whether to switch to the energy-saving state. This avoids the situation where the AP still has data to send to the STA, but the STA has switched to the energy-saving state and cannot receive the data, which improves the user experience.
  • WLAN wireless local area networks
  • radio waves such as laser, infrared, radio frequency, etc.
  • WLAN systems we usually use include Wi-Fi and Bluetooth.
  • FIG. 1 is a schematic diagram of a wireless local area network system.
  • a WLAN can include multiple basic service sets (BSS).
  • BSS basic service sets
  • all stations stations (stations, STAs) are associated with an access point (AccessPoint, AP), and the AP controls and leads all of the entire BSS
  • AccessPoint AccessPoint
  • the data transmission process that is, all STAs in the wireless network must pass through the AP if they want to communicate.
  • a BSS includes an AP and three STAs (STA1, STA2, and STA3).
  • An AP is an access point for a wireless network, commonly known as a "hot spot".
  • the integrated equipment performs access and routing work.
  • the pure access equipment is only responsible for the access of the wireless client.
  • the pure access equipment is usually used as a wireless network extension and is used with other APs.
  • the main AP is connected to expand the wireless coverage, and the integrated device is generally the core of the wireless network.
  • the AP can be a wireless router, a digital subscriber line customer terminal equipment (Digital Subscriber Line Customer Premise Device, DSL CPE), a cable modem (Cable Modem, CM), and an optical network unit (Optical Network Unit, ONU), etc., integrated with AP functions device of.
  • STA refers to the devices connected to the wireless network. These devices can communicate with other internal devices or outside the wireless network through the AP.
  • STA is generally a client in WLAN, which can be a computer with a wireless network card or a WiFi module.
  • WLAN wireless local area network
  • STA can be mobile or fixed, and it is the basic unit of wireless local area network.
  • the most common STA device is a mobile phone, similar to a mobile phone, which has a large traffic but is powered by a battery. Due to the standby time requirement, it has a strong demand for energy saving. Therefore, if there is no business traffic, the mobile phone will go to sleep and turn off the transceiver to save energy.
  • the STA usually decides whether to switch to the energy-saving state based on whether it has data to send to the AP. However, after the STA is switched to the energy-saving state, the AP may still have data to send to the STA, which will cause delay in service transmission and affect user experience.
  • FIG. 2 is a schematic diagram of an embodiment of the energy-saving control method in this application.
  • the energy-saving control method includes the following steps.
  • the AP determines the first energy saving information of the STA according to the service information of the service sent by the AP to the STA.
  • the first energy saving information includes energy saving allowed or energy saving prohibited.
  • the AP may determine whether the first energy saving information is to allow energy saving or prohibit energy saving through the service information of the service sent to the STA.
  • the service information includes at least one of the delay requirements of the service, the historical traffic statistics of the service, the sending frequency of the service, and the remaining amount of the service in the buffer. For example, there are currently delay-sensitive services such as voice, and if the STA switches to the energy-saving state, it will greatly affect the user experience, and the AP determines that the first energy-saving information is energy-saving prohibition.
  • the AP infers from the historical traffic statistics of the service that there are still a large number of services to be sent to the STA afterwards, and the AP determines that the first energy saving information is the prohibition of energy saving. For another example, the AP predicts that the service still needs to be sent to the STA soon (for example, within 10 ms) based on the sending frequency of the service, then the AP determines that the first energy saving information is the prohibition of energy saving. For another example, if there is still a large amount of business remaining in the AP's cache, the AP determines that the first energy saving information is forbidden to save energy.
  • the basis for the AP to determine the first energy-saving information is not limited to the cases listed above. In any situation that affects the user experience due to the STA switching to the energy-saving state, the AP will determine the first energy-saving information To prohibit energy saving.
  • the AP generates a data frame according to the first energy saving information.
  • the AP extracts the message from the buffer, and encapsulates the message to obtain a data frame.
  • the data frame includes a frame control (frame control) field, and the AP indicates the first energy saving information through the power management (power management) field in the frame control field.
  • the type of the data frame may be a media access control (Media Access Control, MAC) frame.
  • Figure 3 is a schematic diagram of a frame structure of a MAC frame.
  • a MAC frame includes a frame header (MAC header), a frame body (Frame Body), and a frame check sequence (Frame Check sequence, FCS).
  • the frame body is also called the data bit, which is responsible for transmitting upper layer data between workstations.
  • the frame check sequence is used to allow the STA to check the integrity of the received frame.
  • the frame header further includes a frame control field (Frame Control), a duration field (Duration/ID), four address fields (address 1, address 2, address 3, and address 4) and a sequence control field (Sequence, Control).
  • the frame control field also includes multiple fields.
  • Fig. 4 is a schematic diagram of a structure of the frame control field.
  • Frame control fields include protocol version (Protocol Version), type (Type), subtype (Subtype), to distributed system (To distributed system, To DS), from distributed system (From distributed system, From DS), more fragments ( More Fragments, Retry, Power Management, More Data, Protected Frame and Order.
  • the energy management domain occupies one bit, and the AP can use this bit to indicate the first energy saving information. Specifically, if the bit is 1, it means that energy saving is allowed, and if the bit is 0, it means that energy saving is prohibited.
  • the energy management field in the data frame sent by the STA to the AP has practical meaning, while the energy management field in the data frame sent by the AP to the STA is reserved. Therefore, in this application, the AP can use the energy management field to indicate the energy saving information that the AP conveys to the STA.
  • the AP sends a data frame to the STA.
  • the STA obtains local second energy saving information.
  • the local of the STA further includes second energy saving information, where the second energy saving information also includes energy saving allowed or energy saving prohibited. For example, if the STA currently has data that needs to be sent to the AP, the second energy saving information is that energy saving is prohibited. If the STA currently has no data to send to the AP, the second energy saving information is that energy saving is allowed.
  • the STA determines whether to switch to the energy-saving state according to the first energy-saving information and the second energy-saving information.
  • the first energy-saving information may be consistent with the second energy-saving information, or conflicts may occur.
  • the operations performed by the STA are also different. The following are introduced separately:
  • the first type, the first energy saving information and the second energy saving information are all allowable energy saving.
  • the AP and the STA may currently have no data to send to each other, and the STA can switch to the energy-saving state.
  • the second type, the first energy-saving information and the second energy-saving information are forbidden to save energy.
  • both AP and STA still have data to send to each other, so the STA must remain awake, that is, the STA can still send and receive data.
  • the first energy-saving information is energy saving prohibited, and the second energy-saving information is energy saving allowed.
  • the STA may have no data to send to the AP, but the AP still has data to send to the STA.
  • the STA needs to ensure that it stays awake when the AP still has data to send, that is, the STA cannot switch to the energy-saving state.
  • the first energy saving information is energy saving allowed, and the second energy saving information is energy saving prohibited.
  • the AP may have no data to send to the STA, but the STA still has data to send to the AP, and the STA still needs to remain awake.
  • the STA executes according to the first energy saving information or the second energy saving information. If the first energy-saving information conflicts with the second energy-saving information, that is, one party allows energy-saving and the other party prohibits energy-saving, the STA must maintain the awake state in order to ensure the smooth progress of data transmission and reception.
  • the STA may receive the data frame sent by the AP, and identify the first energy saving information determined by the AP through the data frame.
  • the STA locally includes the second energy-saving information, and both the first energy-saving information and the second energy-saving information include energy saving allowed or energy saving prohibited.
  • the STA determines whether to switch to the energy-saving state in combination with the first energy-saving information and the local second energy-saving information. In other words, whether the STA is switched to the energy-saving state is no longer unilaterally determined by the STA, and it is also necessary to refer to the AP's energy-saving requirements to finally determine whether to switch to the energy-saving state. This avoids the situation where the AP still has data to send to the STA, but the STA has switched to the energy-saving state and cannot receive the data, which improves the user experience.
  • FIG. 5 is a schematic diagram of another embodiment of the energy-saving control method in this application.
  • the energy-saving control method includes the following steps.
  • the STA negotiates capabilities with the AP.
  • the STA will negotiate with the AP to learn about the functions supported by the other party. Specifically, the STA sends its own first set of capability information to the AP, and the AP sends its own second set of capability information to the STA.
  • the first capability information set includes the STA's ability to recognize the first energy-saving information
  • the second capability information set includes the ability of the AP to indicate the first energy-saving information through a data frame.
  • the AP may also negotiate with the STA which energy-saving information shall prevail when the first energy-saving information conflicts with the second energy-saving information.
  • the STA may also negotiate with the STA which energy-saving information shall prevail when the first energy-saving information conflicts with the second energy-saving information.
  • the AP determines the first energy saving information of the STA according to the service information of the service sent by the AP to the STA.
  • step 502 is similar to step 201 in the embodiment shown in FIG. 2, and the details are not repeated here.
  • the AP generates a data frame according to the first energy saving information.
  • step 503 is similar to step 202 in the embodiment shown in FIG. 2, and details are not repeated here.
  • the AP may also add an extension field to the data frame, and use the extension field to indicate the energy saving level of the energy saving state.
  • the energy-saving state of the STA corresponds to multiple energy-saving levels, and different energy-saving levels indicate the degree to which the STA has entered sleep.
  • the energy-saving level includes at least one of the frame rate that the STA can receive in the energy-saving state, the length of time the STA switches to the energy-saving state, and the frequency at which the STA switches to the energy-saving state. For example, the higher the energy-saving level, the lower the frame rate that the STA can receive, the longer the time period for the STA to switch to the energy-saving state, or the higher the frequency of the STA switching to the energy-saving state.
  • the energy-saving level is not limited to the several types listed above, and any situation that can distinguish the depth to which the STA enters sleep can be regarded as the energy-saving level.
  • Fig. 6 is a schematic diagram of another frame structure of the MAC frame.
  • the frame header part also includes a quality of service control field (Quality of Service Control) and a high throughput field (High Throughput Control).
  • the extension field in this embodiment may be the above-mentioned service quality control field or high throughput field.
  • the first capability information set of the STA also includes the ability to identify the energy-saving level
  • the second capability information set of the AP also includes passing The extension field indicates the ability of the energy saving level.
  • the AP sends a data frame to the STA.
  • the STA obtains local second energy saving information.
  • the STA determines whether to switch to the energy-saving state according to the first energy-saving information and the second energy-saving information.
  • step 506 is similar to step 205 in the embodiment shown in FIG. 2, and details are not repeated here.
  • FIG. 7 is a schematic diagram of a possible AP structure.
  • the AP includes a processor 701, a memory 702, and a transceiver 703.
  • the processor 701, the memory 702, and the transceiver 703 are interconnected by wires, where the memory 702 is used to store program instructions and data.
  • the transceiver 703 includes a transmitter and a receiver.
  • the memory 702 stores program instructions and data that support the steps shown in FIGS. 2 and 5, and the processor 701 and the transceiver 703 are used to execute the method executed by the AP shown in FIGS. 2 and 5 step.
  • the processor 701 is configured to perform step 201 and step 202
  • the transceiver 703 is configured to perform step 203.
  • the processor 701 is configured to perform steps 501 to 503, and the transceiver 703 is configured to perform step 504.
  • Fig. 8 is a schematic structural diagram of a possible STA.
  • the STA includes a processor 801, a memory 802, and a transceiver 803.
  • the processor 801, the memory 802, and the transceiver 803 are interconnected by wires, where the memory 802 is used to store program instructions and data.
  • the transceiver 803 includes a transmitter and a receiver.
  • the memory 802 stores program instructions and data supporting the steps shown in FIGS. 2 and 5, and the processor 801 and the transceiver 803 are used to execute the method executed by the STA shown in FIGS. 2 and 5 step.
  • the processor 801 is configured to perform step 204 and step 205
  • the transceiver 803 is configured to perform step 203.
  • the processor 801 is configured to perform step 505 and step 506, and the transceiver 803 is configured to perform step 504.
  • the above-mentioned processing unit or processor may be a central processing unit, a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device , Transistor logic devices, hardware components, or any combination thereof.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • Transistor logic devices hardware components, or any combination thereof.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

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Abstract

本申请实施例公开了一种节能控制方法及相关设备。STA接收AP发送的数据帧，其中，所述数据帧包括帧控制字段，所述帧控制字段中的能量管理域用于指示第一节能信息，第一节能信息由AP根据其向STA发送的业务的业务信息确定，且第一节能信息包括允许节能或禁止节能。此外，STA还可以获取本地的第二节能信息，第二节能信息也包括允许节能或禁止节能。若第一节能信息和第二节能信息相同，那么STA根据第一节能信息或第二节能信息确定是否切换为节能状态。若第一节能信息和第二节能信息不同，则STA保持唤醒状态。

Description

一种节能控制方法及相关设备
本申请要求于2019年12月30日提交中国国家知识产权局、申请号为201911424427.3、发明名称为“一种节能控制方法及相关设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及设备节能领域，尤其涉及一种节能控制方法及相关设备。
背景技术
无线局域网(Wireless Local Area Network，WLAN)是以各种无线电波(如激光、红外线、无线射频等)的无线信道来代替有线局域网中的部分或全部传输介质所构成的网络。在一个WLAN中，站点(Station，STA)通过接入点(AccessPoint，AP)接入网络。生活中最常见的STA是手机，类似手机这种由电池供电的STA，出于对待机时间的要求，其节能需求强烈。如果没有业务流量，手机就会进入睡眠状态，关闭收发器以节能。
在STA向AP发送数据时，STA在介质访问控制(Media Access Control，MAC)帧头用1bit来指示节能状态。如果该bit为1，表示STA在发完该数据帧后将切换为节能状态，不过AP向STA发送的数据帧中，这1bit将被忽略。也就是说，若STA确定自己没有报文向AP发送，则切换为节能状态。但是在STA切换为节能状态后AP可能仍有数据需要发送给STA，就会给业务的传输带来时延，影响用户体验。
发明内容
本申请实施例提供了一种节能控制方法及相关设备。
第一方面，本申请实施例提供了一种节能控制方法。该方法包括如下步骤。
STA接收AP发送的数据帧，其中，所述数据帧包括帧控制字段，所述帧控制字段中的能量管理域用于指示第一节能信息，第一节能信息由AP根据其向STA发送的业务的业务信息确定，且第一节能信息包括允许节能或禁止节能。此外，STA还可以获取本地的第二节能信息，第二节能信息也包括允许节能或禁止节能。若第一节能信息和第二节能信息相同，那么STA根据第一节能信息或第二节能信息确定是否切换为节能状态，例如，第一节能信息和第二节能信息均为允许节能，则STA切换为节能状态。若第一节能信息和第二节能信息不同，那么STA或AP仍有数据需要向对方发送，则STA保持唤醒状态。
在该实施方式中，STA是否切换为节能状态不再由STA单方来决定，还需要参考AP对节能的要求来最终确定是否切换为节能状态。避免了AP仍有数据需要发送给STA，但是STA已经切换为节能状态而无法接收数据的情况，提高了用户体验。
可选地，在一些可能的实施方式中，所述能量管理域包括目标比特。若所述目标比特为1，则所述第一节能信息为允许节能。若所述目标比特为0，则所述第一节能信息为禁止节能。
在该实施方式中，介绍了通过能量管理域指示第一节能信息的具体实现方式，提高了本方案的实用性。
可选地，在一些可能的实施方式中，所述数据帧还包括扩展字段，所述扩展字段用于指示所述节能状态的节能等级，所述节能等级包括在所述节能状态下允许所述STA接收的帧的速率、所述STA进入所述节能状态的时长和所述STA进入所述节能状态的频率中的至少一种。
在该实施方式中，STA根据AP发送的数据帧的指示切换到节能状态的同时还可以确定节能等级，STA的节能状态对应有多个节能等级，不同的节能等级表示STA进入休眠的深浅程度，便于根据实际情况调整节能状态，提高了本方案的灵活性。
可选地，在一些可能的实施方式中，所述STA接收所述AP发送的所述数据帧之前，STA和AP将进行能力信息的交互。具体地，STA向AP发送第一能力信息集合，该第一能力信息集合包括STA对第一节能信息的识别能力。STA接收AP发送的第二能力信息集合，该第二能力信息集合包括AP通过数据帧指示第一节能信息的能力。
在该实施方式中，AP和STA可以通过能力信息交互的方式确定对方是否具有相同的功能，在双方具有相同功能的基础上，AP向STA发送用于指示第一节能信息的数据帧才是有意义的，避免了由于双方没有协商一致而导致STA无法参考AP的节能信息进行节能的情况。
可选地，在一些可能的实施方式中，STA向AP发送的第一能力信息集合除了包括STA对第一节能信息的识别能力之外，还可以包括STA对节能等级的识别能力。同理，AP向STA发送的第二能力信息集合除了包括AP通过数据帧指示第一节能信息的能力外，还可以包括AP通过数据帧指示节能等级的能力。
在该实施方式中，STA和AP进行的能力信息交互还包括节能等级，提高了本方案的扩展性。
可选地，在一些可能的实施方式中，所述业务信息包括所述业务的时延要求、所述业务的历史流量统计、所述业务的发送频率和所述AP的缓存中所述业务的剩余量中的至少一项。
在该实施方式中，提供了多种业务信息的具体类型，进一步提高了本方案的扩展性。
第一方面，本申请实施例提供了一种节能控制方法。该方法包括如下步骤。
AP根据其向STA发送的业务的业务信息确定STA的节能信息，该节能信息包括允许节能或禁止节能。之后，AP根据节能信息生成数据帧，该数据帧包括帧控制字段，且帧控制字段的能量管理域用于指示节能信息。进而，AP向STA发送该数据帧，以使得STA根据节能信息确定是否切换为节能状态。
可选地，在一些可能的实施方式中，所述能量管理域包括目标比特；若所述目标比特为1，则所述节能信息为允许节能；若所述目标比特为0，则所述节能信息为禁止节能。
可选地，在一些可能的实施方式中，所述数据帧还包括扩展字段，所述扩展字段用于指示所述节能状态的节能等级，所述节能等级包括在所述节能状态下允许所述STA接收的帧的速率、所述STA进入所述节能状态的时长和所述STA进入所述节能状态的频率中的至少一种。
可选地，在一些可能的实施方式中，所述AP生成所述数据帧之前，所述方法还包括：
所述AP接收所述STA发送的第一能力信息集合，所述第一能力信息集合包括所述STA对所述节能信息的识别能力；
所述AP向所述STA发送第二能力信息集合，所述第二能力信息集合包括所述AP通过所述数据帧指示所述第一节能信息的能力。
可选地，在一些可能的实施方式中，所述AP生成所述数据帧之前，所述方法还包括：
所述AP接收所述STA发送的第一能力信息集合，所述第一能力信息集合包括所述所述 STA对所述第一节能信息和所述节能等级的识别能力；
所述AP向所述STA发送第二能力信息集合，所述第二能力信息集合包括所述AP通过所述数据帧指示所述第一节能信息和所述节能等级的能力。
可选地，在一些可能的实施方式中，所述业务信息包括所述业务的时延要求、所述业务的历史流量统计、所述业务的发送频率和所述AP的缓存中所述业务的剩余量中的至少一项。
第三方面，本申请实施例提供了一种STA，包括：
处理器、存储器以及收发器，所述处理器、所述存储器以及所述收发器通过线路互联，所述存储器中存储有指令。
所述收发器用于接收接入点AP发送的数据帧，所述数据帧包括帧控制字段，所述帧控制字段中的能量管理域用于指示第一节能信息，所述第一节能信息由所述AP根据所述AP向所述STA发送的业务的业务信息确定，所述第一节能信息包括允许节能或禁止节能。
所述处理器用于执行如下步骤。
获取本地的第二节能信息，所述第二节能信息包括允许节能或禁止节能。若所述第一节能信息和所述第二节能信息相同，则根据所述第一节能信息或所述第二节能信息确定是否切换为节能状态。若所述第一节能信息和所述第二节能信息不同，则保持唤醒状态。
可选地，在一些可能的实施方式中，所述能量管理域包括目标比特；若所述目标比特为1，则所述第一节能信息为允许节能；若所述目标比特为0，则所述第一节能信息为禁止节能。
可选地，在一些可能的实施方式中，所述数据帧还包括扩展字段，所述扩展字段用于指示所述节能状态的节能等级，所述节能等级包括在所述节能状态下允许所述STA接收的帧的速率、所述STA进入所述节能状态的时长和所述STA进入所述节能状态的频率中的至少一种。
可选地，在一些可能的实施方式中，所述收发器还用于向所述AP发送第一能力信息集合，所述第一能力信息集合包括所述STA对所述第一节能信息的识别能力。所述收发器还用于接收所述AP发送的第二能力信息集合，所述第二能力信息集合包括所述AP通过所述数据帧指示所述第一节能信息的能力。
可选地，在一些可能的实施方式中，所述收发器还用于向所述AP发送第一能力信息集合，所述第一能力信息集合包括所述所述STA对所述第一节能信息和所述节能等级的识别能力。所述收发器还用于接收所述AP发送的第二能力信息集合，所述第二能力信息集合包括所述AP通过所述数据帧指示所述第一节能信息和所述节能等级的能力。
可选地，在一些可能的实施方式中，所述业务信息包括所述业务的时延要求、所述业务的历史流量统计、所述业务的发送频率和所述AP的缓存中所述业务的剩余量中的至少一项。
第四方面，本申请实施例提供了一种AP，包括：
处理器、存储器以及收发器，所述处理器、所述存储器以及所述收发器通过线路互联，所述存储器中存储有指令。
处理器用于执行如下步骤。
根据所述收发器向站点STA发送的业务的业务信息确定所述STA的节能信息，所述节能信息包括允许节能或禁止节能。根据所述节能信息生成数据帧，所述数据帧包括帧控制字段，所述帧控制字段中的能量管理域用于指示所述节能信息；
收发器用于向所述STA发送所述数据帧，以使得所述STA根据所述节能信息确定是否切换为节能状态。
可选地，在一些可能的实施方式中，所述能量管理域包括目标比特；若所述目标比特为1，则所述节能信息为允许节能；若所述目标比特为0，则所述节能信息为禁止节能。
可选地，在一些可能的实施方式中，所述数据帧还包括扩展字段，所述扩展字段用于指示所述节能状态的节能等级，所述节能等级包括在所述节能状态下允许所述STA接收的帧的速率、所述STA进入所述节能状态的时长和所述STA进入所述节能状态的频率中的至少一种。
可选地，在一些可能的实施方式中，所述收发器还用于接收所述STA发送的第一能力信息集合，所述第一能力信息集合包括所述STA对所述节能信息的识别能力。所述收发器还用于向所述STA发送第二能力信息集合，所述第二能力信息集合包括所述AP通过所述数据帧指示所述第一节能信息的能力。
可选地，在一些可能的实施方式中，所述收发器还用于接收所述STA发送的第一能力信息集合，所述第一能力信息集合包括所述所述STA对所述第一节能信息和所述节能等级的识别能力。所述收发器还用于向所述STA发送第二能力信息集合，所述第二能力信息集合包括所述AP通过所述数据帧指示所述第一节能信息和所述节能等级的能力。
可选地，在一些可能的实施方式中，所述业务信息包括所述业务的时延要求、所述业务的历史流量统计、所述业务的发送频率和所述存储器中所述业务的剩余量中的至少一项。
从以上技术方案可以看出，本申请实施例具有以下优点：
本申请实施例中，STA可以接收AP发送的数据帧，并通过数据帧识别AP确定的第一节能信息。此外，STA本地包括第二节能信息，第一节能信息和第二节能信息均包括允许节能或禁止节能。进而，STA结合第一节能信息和本地的第二节能信息来确定是否切换为节能状态。也就是说，STA是否切换为节能状态不再由STA单方来决定，还需要参考AP对节能的要求来最终确定是否切换为节能状态。避免了AP仍有数据需要发送给STA，但是STA已经切换为节能状态而无法接收数据的情况，提高了用户体验。
附图说明
图1为一个无线局域网系统的示意图；
图2为本申请中节能控制方法的一个实施例示意图；
图3为MAC帧的一种帧结构示意图；
图4为帧控制字段的一种结构示意图；
图5为本申请中节能控制方法的另一个实施例示意图；
图6为MAC帧的另一种帧结构示意图；
图7为一种可能的AP的结构示意图；
图8为一种可能的STA的结构示意图。
具体实施方式
本申请实施例提供了一种节能控制方法及相关设备，STA是否切换为节能状态不再由STA单方来决定，还需要参考AP对节能的要求来最终确定是否切换为节能状态。避免了AP仍有数据需要发送给STA，但是STA已经切换为节能状态而无法接收数据的情况，提高了用户体验。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四” 等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本申请主要应用于无线局域网(wireless local area networks，WLAN)，WLAN是以各种无线电波(如激光、红外线、无线射频等)的无线信道来代替有线局域网中的部分或全部传输介质所构成的网络，目前WLAN采用的标准是IEEE802.11系列。我们通常使用的WLAN系统包括Wi-Fi和蓝牙等。
图1为一个无线局域网系统的示意图。WLAN可以包括多个基本服务集(basic service set，BSS)，在BSS中，所有站点(station，STA)关联到一个接入点(AccessPoint，AP)上，该AP控制和主导整个BSS中的全部数据的传输过程，也就是所有无线网络中的STA要想通信，都得经过AP。如图1所示就是一个BSS，包括一个AP和三个STA(STA1、STA2及STA3)。
AP是一个无线网络的接入点，俗称“热点”。主要有路由交换接入一体设备和纯接入点设备，一体设备执行接入和路由工作，纯接入设备只负责无线客户端的接入，纯接入设备通常作为无线网络扩展使用，与其他AP或者主AP连接，以扩大无线覆盖范围，而一体设备一般是无线网络的核心。具体地，AP可以是无线路由器、数字用户线客户终端设备(Digital Subscriber Line Customer Premise Device，DSL CPE)、电缆调制解调器(Cable Modem，CM)和光网络单元(Optical Network Unit，ONU)等集成了AP功能的设备。
STA表示连接到无线网络中的设备，这些设备通过AP，可以和内部其它设备或者无线网络外部通信，STA在WLAN中一般为客户端，可以是装有无线网卡的计算机，也可以是有WiFi模块的智能手机，STA可以是移动的，也可以是固定的，是无线局域网的基本组成单元。最常见的STA设备是手机，类似手机这种流量大但是由电池供电的STA，出于待机时间要求，其节能需求强烈。因此，如果没有业务流量，手机就会进入睡眠状态，关闭收发器以节能。
在目前的IEEE 802.11标准中，STA通常是根据自己是否有数据向AP发送来决定是否切换为节能状态。但是在STA切换为节能状态后AP可能仍有数据需要发送给STA，就会给业务的传输带来时延，影响用户体验。
为此本申请提供了一种节能控制方法。图2为本申请中节能控制方法的一个实施例示意图。在该实施例中，节能控制方法包括如下步骤。
201、AP根据AP向STA发送的业务的业务信息确定STA的第一节能信息。
本实施例中，第一节能信息包括允许节能或禁止节能。AP可以通过向STA发送的业务的业务信息确定第一节能信息是允许节能还是禁止节能。具体地，业务信息包括业务的时延要求、业务的历史流量统计、业务的发送频率和缓存中业务的剩余量中的至少一项。例如，当前存在语音等对时延敏感的业务，若STA切换为节能状态会非常影响用户体验，那么AP确定第一节能信息为禁止节能。又例如，AP通过业务的历史流量统计推断出之后仍有大量业务需要向STA发送，那么AP确定第一节能信息为禁止节能。又例如，AP通过业务的发送频率预测出很快(如10ms内)仍有业务需要向STA发送，那么AP确定第一节能信息为禁止节能。又例如，AP的缓存中仍有大量业务剩余，那么AP确定第一节能信息为禁止节能。
需要说明的是，在实际应用中，AP确定第一节能信息的依据并不限于上述列举的几种情况，凡是由于STA切换为节能状态而影响用户体验的情况，AP都将确定第一节能信息为禁止节能。
202、AP根据第一节能信息生成数据帧。
本实施例中，AP从缓存中提取报文，并对报文进行封装得到数据帧。其中，数据帧包括帧控制(frame control)字段，AP通过帧控制字段中的能量管理(power management)域来指示第一节能信息。
具体地，数据帧的类型可以是介质访问控制(Media Access Control，MAC)帧。图3为MAC帧的一种帧结构示意图。MAC帧包括帧头(MAC header)、帧主体(Frame Body)和帧校验序列(Frame Check sequence，FCS)。其中，帧主体亦称为数据位，负责在工作站间传送上层数据。帧校验序列用于让STA检查所收到的帧的完整性。帧头中进一步包括帧控制字段(Frame Control)、持续时间字段(Duration/ID)、四个地址字段(地址1、地址2、地址3和地址4)和顺序控制字段(Sequence，Control)。
进而，帧控制字段还包括多个域。图4为帧控制字段的一种结构示意图。帧控制字段包括协议版本(Protocol Version)、类型(Type)、子类型(Subtype)、至分布系统(To distributed system，To DS)、来自分布系统(From distributed system，From DS)、更多片段(More Fragments)、重试(Retry)、能量管理(Power Management)、更多数据(More Data)、受保护帧(Protected Frame)和次序(Order)。
其中，能量管理域占用一个bit，AP可以使用该bit来指示第一节能信息。具体地，若该bit为1则表示允许节能，若该bit为0则表示禁止节能。
需要说明的是，依据现有的标准，STA向AP发送的数据帧中的能量管理域具有实际含义，而AP向STA发送的数据帧中的能量管理域是保留不用的。因此，本申请中AP可以使用该能量管理域来指示AP向STA传达的节能信息。
203、AP向STA发送数据帧。
204、STA获取本地的第二节能信息。
本实施例中，STA的本地还包括第二节能信息，其中，第二节能信息也包括允许节能或禁止节能。例如，若STA当前还有数据需要向AP发送，那么第二节能信息为禁止节能。若STA当前没有数据需要向AP发送，那么第二节能信息为允许节能。
205、STA根据第一节能信息和第二节能信息确定是否切换为节能状态。
本实施例中，第一节能信息可能与第二节能信息一致，也可能出现冲突。在不同的情况下，STA执行的操作也不同。下面分别进行介绍：
第一种、第一节能信息和第二节能信息均为允许节能。
这种情况下，AP和STA当前可能都没有数据需要向对方发送，那么STA即可切换为节能状态。
第二种、第一节能信息和第二节能信息均为禁止节能。
这种情况下，AP和STA都仍有数据需要向对方发送，那么STA要保持唤醒状态，即STA仍然可以收发数据。
第三种、第一节能信息为禁止节能，第二节能信息为允许节能。
这种情况下，STA可能没有数据需要向AP发送了，但是AP仍有数据需要向STA发送， STA需要保证在AP仍有数据需要发送时保持唤醒，即STA不能切换为节能状态。
第四种、第一节能信息为允许节能，第二节能信息为禁止节能。
这种情况下，AP可能没有数据需要向STA发送了，但是STA仍有数据需要向AP发送，STA仍然要保持唤醒状态。
综上所述，如果第一节能信息与第二节能信息一致，那么STA按照该第一节能信息或第二节能信息执行。如果第一节能信息与第二节能信息冲突，即一方允许节能而另一方禁止节能，那么STA为了保证数据收发的顺利进行，要保持唤醒状态。
本申请实施例中，STA可以接收AP发送的数据帧，并通过数据帧识别AP确定的第一节能信息。此外，STA本地包括第二节能信息，第一节能信息和第二节能信息均包括允许节能或禁止节能。进而，STA结合第一节能信息和本地的第二节能信息来确定是否切换为节能状态。也就是说，STA是否切换为节能状态不再由STA单方来决定，还需要参考AP对节能的要求来最终确定是否切换为节能状态。避免了AP仍有数据需要发送给STA，但是STA已经切换为节能状态而无法接收数据的情况，提高了用户体验。
可选地，上述步骤201之前，STA和AP之间还需要进行能力协商。下面请参阅图5，图5为本申请中节能控制方法的另一个实施例示意图。在该实施例中，节能控制方法包括如下步骤。
501、STA与AP进行能力协商。
本实施例中，在STA与AP建立通信的过程中，STA会与AP进行能力协商以了解对方所支持的功能。具体地，STA向AP发送自身的第一能力信息集合，并且AP向STA发送自身的第二能力信息集合。其中，第一能力信息集合包括STA对第一节能信息的识别能力，第二能力信息集合包括AP通过数据帧指示第一节能信息的能力。通过能力协商之后，STA和AP即可获知双方所具有的共同能力。
可选地，在能力协商的过程中，AP还可以与STA协商在第一节能信息和第二节能信息冲突时以哪一个节能信息为准。具体可以参照上述步骤204的相关描述，此处不再赘述。
502、AP根据AP向STA发送的业务的业务信息确定STA的第一节能信息。
本实施例中，步骤502与图2所示实施例的步骤201类似，具体此处不再赘述。
503、AP根据第一节能信息生成数据帧。
本实施例中，步骤503与图2所示实施例中的步骤202类似，具体此处不再赘述。
可选地，AP还可以在数据帧中添加扩展字段，并用该扩展字段指示节能状态的节能等级。也就是说，STA的节能状态对应有多个节能等级，不同的节能等级表示STA进入休眠的深浅程度。具体地，节能等级包括在节能状态下STA所能接收的帧的速率、STA切换为节能状态的时长和STA切换为节能状态的频率中的至少一种。例如，节能等级越高，则STA所能接收的帧的速率越小，STA切换为节能状态的时长越大或STA切换为节能状态的频率越高。
需要说明的是，节能等级并不限于上述列举的几种类型，凡是可以区分STA进入休眠的深浅程度的情况都可以视作节能等级。
下面对数据帧中的扩展字段进行说明，具体仍以数据帧的类型是MAC帧为例。图6为MAC帧的另一种帧结构示意图。与图3所示的MAC帧的不同之处在于，帧头部分还包括服务质量控制字段(Quality of Service Control)和高吞吐量字段(High Throughput Control)。其中，本实施例中的扩展字段可以是上述的服务质量控制字段或高吞吐量字段。
可以理解的是，如果AP需要通过扩展字段指示节能等级，那么在上述步骤501中，STA的第一能力信息集合中还包括对节能等级的识别能力，AP的第二能力信息集合中还包括通过扩展字段指示节能等级的能力。
504、AP向STA发送数据帧。
505、STA获取本地的第二节能信息。
506、STA根据第一节能信息和第二节能信息确定是否切换为节能状态。
本实施例中，步骤506与图2所示实施例中的步骤205类似，具体此处不再赘述。
上面对本申请实施例中的节能控制方法进行了描述，下面对本申请实施例中的AP和STA进行描述：
图7为一种可能的AP的结构示意图。该AP包括处理器701、存储器702以及收发器703。该处理器701、存储器702以及收发器703通过线路互联，其中，存储器702用于存储程序指令和数据。收发器703包含发射机和接收机。
在一种可能的实现方式中，存储器702存储了支持图2和图5所示步骤的程序指令和数据，处理器701和收发器703用于执行图2和图5所示由AP执行的方法步骤。具体地，处理器701用于执行步骤201和步骤202，收发器703用于执行步骤203。或者，处理器701用于执行步骤501-503，收发器703用于执行步骤504。
图8为一种可能的STA的结构示意图。该STA包括处理器801、存储器802以及收发器803。该处理器801、存储器802以及收发器803通过线路互联，其中，存储器802用于存储程序指令和数据。收发器803包含发射机和接收机。
在一种可能的实现方式中，存储器802存储了支持图2和图5所示步骤的程序指令和数据，处理器801和收发器803用于执行图2和图5所示由STA执行的方法步骤。具体地，处理器801用于执行步骤204和步骤205，收发器803用于执行步骤203。或者，处理器801用于执行步骤505和步骤506，收发器803用于执行步骤504。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，随机接入存储器等。具体地，例如：上述处理单元或处理器可以是中央处理器，通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。上述的这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
当使用软件实现时，上述实施例描述的方法步骤可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能 够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
最后应说明的是：以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (24)

  1. 一种节能控制方法，其特征在于，包括：
    站点STA接收接入点AP发送的数据帧，所述数据帧包括帧控制字段，所述帧控制字段中的能量管理域用于指示第一节能信息，所述第一节能信息由所述AP根据所述AP向所述STA发送的业务的业务信息确定，所述第一节能信息包括允许节能或禁止节能；
    所述STA获取本地的第二节能信息，所述第二节能信息包括允许节能或禁止节能；
    若所述第一节能信息和所述第二节能信息相同，则所述STA根据所述第一节能信息或所述第二节能信息确定是否切换为节能状态；
    若所述第一节能信息和所述第二节能信息不同，则所述STA保持唤醒状态。
  2. 根据权利要求1所述的节能控制方法，其特征在于，所述能量管理域包括目标比特；若所述目标比特为1，则所述第一节能信息为允许节能；若所述目标比特为0，则所述第一节能信息为禁止节能。
  3. 根据权利要求1或2所述的节能控制方法，其特征在于，所述数据帧还包括扩展字段，所述扩展字段用于指示所述节能状态的节能等级，所述节能等级包括在所述节能状态下允许所述STA接收的帧的速率、所述STA进入所述节能状态的时长和所述STA进入所述节能状态的频率中的至少一种。
  4. 根据权利要求1至3中任一项所述的节能控制方法，其特征在于，所述STA接收所述AP发送的所述数据帧之前，所述方法还包括：
    所述STA向所述AP发送第一能力信息集合，所述第一能力信息集合包括所述STA对所述第一节能信息的识别能力；
    所述STA接收所述AP发送的第二能力信息集合，所述第二能力信息集合包括所述AP通过所述数据帧指示所述第一节能信息的能力。
  5. 根据权利要求3所述的节能控制方法，其特征在于，所述STA接收所述AP发送的所述数据帧之前，所述方法还包括：
    所述STA向所述AP发送第一能力信息集合，所述第一能力信息集合包括所述所述STA对所述第一节能信息和所述节能等级的识别能力；
    所述STA接收所述AP发送的第二能力信息集合，所述第二能力信息集合包括所述AP通过所述数据帧指示所述第一节能信息和所述节能等级的能力。
  6. 根据权利要求1至5中任一项所述的节能控制方法，其特征在于，所述业务信息包括所述业务的时延要求、所述业务的历史流量统计、所述业务的发送频率和所述AP的缓存中所述业务的剩余量中的至少一项。
  7. 一种节能控制方法，其特征在于，包括：
    接入点AP根据所述AP向站点STA发送的业务的业务信息确定所述STA的节能信息，所述节能信息包括允许节能或禁止节能；
    所述AP根据所述节能信息生成数据帧，所述数据帧包括帧控制字段，所述帧控制字段中的能量管理域用于指示所述节能信息；
    所述AP向所述STA发送所述数据帧，以使得所述STA根据所述节能信息确定是否切换为节能状态。
  8. 根据权利要求7所述的节能控制方法，其特征在于，所述能量管理域包括目标比特； 若所述目标比特为1，则所述节能信息为允许节能；若所述目标比特为0，则所述节能信息为禁止节能。
  9. 根据权利要求7或8所述的节能控制方法，其特征在于，所述数据帧还包括扩展字段，所述扩展字段用于指示所述节能状态的节能等级，所述节能等级包括在所述节能状态下允许所述STA接收的帧的速率、所述STA进入所述节能状态的时长和所述STA进入所述节能状态的频率中的至少一种。
  10. 根据权利要求7至9中任一项所述的节能控制方法，其特征在于，所述AP生成所述数据帧之前，所述方法还包括：
    所述AP接收所述STA发送的第一能力信息集合，所述第一能力信息集合包括所述STA对所述节能信息的识别能力；
    所述AP向所述STA发送第二能力信息集合，所述第二能力信息集合包括所述AP通过所述数据帧指示所述第一节能信息的能力。
  11. 根据权利要求9所述的节能控制方法，其特征在于，所述AP生成所述数据帧之前，所述方法还包括：
    所述AP接收所述STA发送的第一能力信息集合，所述第一能力信息集合包括所述所述STA对所述第一节能信息和所述节能等级的识别能力；
    所述AP向所述STA发送第二能力信息集合，所述第二能力信息集合包括所述AP通过所述数据帧指示所述第一节能信息和所述节能等级的能力。
  12. 根据权利要求7至11中任一项所述的节能控制方法，其特征在于，所述业务信息包括所述业务的时延要求、所述业务的历史流量统计、所述业务的发送频率和所述AP的缓存中所述业务的剩余量中的至少一项。
  13. 一种站点STA，其特征在于，包括：
    处理器、存储器以及收发器，所述处理器、所述存储器以及所述收发器通过线路互联，所述存储器中存储有指令；
    所述收发器用于接收接入点AP发送的数据帧，所述数据帧包括帧控制字段，所述帧控制字段中的能量管理域用于指示第一节能信息，所述第一节能信息由所述AP根据所述AP向所述STA发送的业务的业务信息确定，所述第一节能信息包括允许节能或禁止节能；
    所述处理器用于：
    获取本地的第二节能信息，所述第二节能信息包括允许节能或禁止节能；
    若所述第一节能信息和所述第二节能信息相同，则根据所述第一节能信息或所述第二节能信息确定是否切换为节能状态；
    若所述第一节能信息和所述第二节能信息不同，则保持唤醒状态。
  14. 根据权利要求13所述的STA，其特征在于，所述能量管理域包括目标比特；若所述目标比特为1，则所述第一节能信息为允许节能；若所述目标比特为0，则所述第一节能信息为禁止节能。
  15. 根据权利要求13或14所述的STA，其特征在于，所述数据帧还包括扩展字段，所述扩展字段用于指示所述节能状态的节能等级，所述节能等级包括在所述节能状态下允许所述STA接收的帧的速率、所述STA进入所述节能状态的时长和所述STA进入所述节能状态的频率中的至少一种。
  16. 根据权利要求13至15中任一项所述的STA，其特征在于，所述收发器还用于向所述AP发送第一能力信息集合，所述第一能力信息集合包括所述STA对所述第一节能信息的识别能力；
    所述收发器还用于接收所述AP发送的第二能力信息集合，所述第二能力信息集合包括所述AP通过所述数据帧指示所述第一节能信息的能力。
  17. 根据权利要求15所述的STA，其特征在于，所述收发器还用于向所述AP发送第一能力信息集合，所述第一能力信息集合包括所述所述STA对所述第一节能信息和所述节能等级的识别能力；
    所述收发器还用于接收所述AP发送的第二能力信息集合，所述第二能力信息集合包括所述AP通过所述数据帧指示所述第一节能信息和所述节能等级的能力。
  18. 根据权利要求13至17中任一项所述的STA，其特征在于，所述业务信息包括所述业务的时延要求、所述业务的历史流量统计、所述业务的发送频率和所述AP的缓存中所述业务的剩余量中的至少一项。
  19. 一种接入点AP，其特征在于，包括：
    处理器、存储器以及收发器，所述处理器、所述存储器以及所述收发器通过线路互联，所述存储器中存储有指令；
    所述处理器用于：
    根据所述收发器向站点STA发送的业务的业务信息确定所述STA的节能信息，所述节能信息包括允许节能或禁止节能；
    根据所述节能信息生成数据帧，所述数据帧包括帧控制字段，所述帧控制字段中的能量管理域用于指示所述节能信息；
    所述收发器用于向所述STA发送所述数据帧，以使得所述STA根据所述节能信息确定是否切换为节能状态。
  20. 根据权利要求19所述的AP，其特征在于，所述能量管理域包括目标比特；若所述目标比特为1，则所述节能信息为允许节能；若所述目标比特为0，则所述节能信息为禁止节能。
  21. 根据权利要求19或20所述的AP，其特征在于，所述数据帧还包括扩展字段，所述扩展字段用于指示所述节能状态的节能等级，所述节能等级包括在所述节能状态下允许所述STA接收的帧的速率、所述STA进入所述节能状态的时长和所述STA进入所述节能状态的频率中的至少一种。
  22. 根据权利要求19至21中任一项所述的AP，其特征在于，所述收发器还用于接收所述STA发送的第一能力信息集合，所述第一能力信息集合包括所述STA对所述节能信息的识别能力；
    所述收发器还用于向所述STA发送第二能力信息集合，所述第二能力信息集合包括所述AP通过所述数据帧指示所述第一节能信息的能力。
  23. 根据权利要求21所述的AP，其特征在于，所述收发器还用于接收所述STA发送的第一能力信息集合，所述第一能力信息集合包括所述所述STA对所述第一节能信息和所述节能等级的识别能力；
    所述收发器还用于向所述STA发送第二能力信息集合，所述第二能力信息集合包括所述 AP通过所述数据帧指示所述第一节能信息和所述节能等级的能力。
  24. 根据权利要求19至23中任一项所述的AP，其特征在于，所述业务信息包括所述业务的时延要求、所述业务的历史流量统计、所述业务的发送频率和所述存储器中所述业务的剩余量中的至少一项。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113596967A (zh) * 2021-07-20 2021-11-02 上海闻泰信息技术有限公司 Mifi设备的wifi休眠控制方法、装置、计算机设备和存储介质

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115884098A (zh) * 2021-09-29 2023-03-31 华为技术有限公司 终端控制方法、装置及系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050003794A1 (en) * 2003-06-20 2005-01-06 Yonghe Liu Optimal power saving scheduler for schedule information vector
CN104618996A (zh) * 2015-01-21 2015-05-13 杭州华三通信技术有限公司 一种用于唤醒节能状态的终端的方法和装置
CN106658556A (zh) * 2016-09-30 2017-05-10 维沃移动通信有限公司 一种接收数据的方法及移动终端
CN108462985A (zh) * 2017-02-17 2018-08-28 华为技术有限公司 一种通信模式切换方法及装置
CN108738109A (zh) * 2017-04-19 2018-11-02 华为技术有限公司 一种站点唤醒方法及站点

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5531118B2 (ja) * 2010-03-15 2014-06-25 エルジー エレクトロニクス インコーポレイティド 無線ｌａｎシステムにおけるフレーム送信方法及び装置
US9282511B2 (en) * 2010-12-07 2016-03-08 Lg Electronics Inc. Method for managing power save mode in wireless LAN system, and device for supporting same
KR101569298B1 (ko) * 2011-07-19 2015-11-13 엘지전자 주식회사 무선랜 시스템에서 통신 방법
US9848381B2 (en) * 2012-12-17 2017-12-19 Lg Electronics Inc. Channel access method and apparatus in wireless LAN system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050003794A1 (en) * 2003-06-20 2005-01-06 Yonghe Liu Optimal power saving scheduler for schedule information vector
CN104618996A (zh) * 2015-01-21 2015-05-13 杭州华三通信技术有限公司 一种用于唤醒节能状态的终端的方法和装置
CN106658556A (zh) * 2016-09-30 2017-05-10 维沃移动通信有限公司 一种接收数据的方法及移动终端
CN108462985A (zh) * 2017-02-17 2018-08-28 华为技术有限公司 一种通信模式切换方法及装置
CN108738109A (zh) * 2017-04-19 2018-11-02 华为技术有限公司 一种站点唤醒方法及站点

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113596967A (zh) * 2021-07-20 2021-11-02 上海闻泰信息技术有限公司 Mifi设备的wifi休眠控制方法、装置、计算机设备和存储介质

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