WO2023051082A1 - 基于无线网络Wi-Fi的数据传输方法及电子设备 - Google Patents

基于无线网络Wi-Fi的数据传输方法及电子设备 Download PDF

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Publication number
WO2023051082A1
WO2023051082A1 PCT/CN2022/113610 CN2022113610W WO2023051082A1 WO 2023051082 A1 WO2023051082 A1 WO 2023051082A1 CN 2022113610 W CN2022113610 W CN 2022113610W WO 2023051082 A1 WO2023051082 A1 WO 2023051082A1
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WIPO (PCT)
Prior art keywords
battery information
information
service type
transmission
battery
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PCT/CN2022/113610
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English (en)
French (fr)
Inventor
张运玑
张利
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华为技术有限公司
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Priority to EP22874477.7A priority Critical patent/EP4387330A1/en
Publication of WO2023051082A1 publication Critical patent/WO2023051082A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0247Traffic management, e.g. flow control or congestion control based on conditions of the access network or the infrastructure network
    • 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
    • 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
    • H04W52/0261Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • 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
    • H04W52/0261Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/0277Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof according to available power supply, e.g. switching off when a low battery condition is detected
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/22Processing or transfer of terminal data, e.g. status or physical capabilities
    • 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

  • the present application relates to the field of terminal technology, and in particular to a Wi-Fi (wireless network)-based data transmission method and electronic equipment.
  • Wi-Fi wireless network
  • Wi-Fi is a wireless network technology that has the advantages of high bandwidth, low power consumption, and low cost. It is widely used in various scenarios such as homes, offices, and shopping malls. Electronic devices can establish connections and perform data transmission through Wi-Fi. Among them, when the power consumption required for data transmission is lower, the demand for the power supply mode of electronic equipment can be reduced, and the service life of electronic equipment can be prolonged. Therefore, how to reduce power consumption in the process of data transmission based on Wi-Fi, are also receiving more and more attention.
  • an electronic device may determine a fixed transmission parameter in advance, and perform data transmission with other electronic devices based on the fixed transmission parameter.
  • the electronic devices for data transmission and the transmitted data may be diversified, and the data transmission mode indicated by the fixed transmission parameters is fixed, and different electronic devices follow the fixed transmission mode. For data transmission, it is very difficult to reduce power consumption.
  • the present application provides a Wi-Fi-based data transmission method and electronic equipment.
  • the embodiment of the present application provides a Wi-Fi-based data transmission method, the method comprising:
  • the first device negotiates at least one of the first battery information and the second battery information, the first capability information, and the first service type with the second device;
  • the first device determines a first transmission parameter based on at least one of the first battery information and the second battery information and the first service type and the first capability information;
  • the first device transmits data with the second device based on the first transmission parameter
  • the first battery information is used to indicate the battery status of the first device
  • the second battery information is used to indicate the battery status of the second device
  • the first capability information is used to indicate the battery status of the second device.
  • the device capability jointly supported by a device and the second device, the first service type is the service type corresponding to the data to be transmitted by the first device and the second device, the first device and the second device
  • the two devices are connected via Wi-Fi.
  • the first device may negotiate with the second device to obtain at least one of the first battery information of the first device and the second battery information of the second device, and the common The supported first capability information and the first service type corresponding to the data to be transmitted. Based on at least one of the first battery information and the second battery information of the second device, the first capability information, and the first service type, determine a first transmission parameter, that is, a device jointly supported by the first device and the second device Within the capability range, select a transmission mode that matches the first service type of the data to be transmitted and the battery state of at least one of the first device and the second device. Then, by performing data transmission in this transmission manner, the power consumption of at least one of the first device and the second device can be reduced.
  • a first transmission parameter that is, a device jointly supported by the first device and the second device within the capability range
  • the device capability negotiation between the first device and the second device may include that the second device sends the second battery information and the second capability information of the second device to the first device, and the first device also sends the second device Send the first battery information and the third capability information of the first device, the first device and the second device can get the first battery information and the second battery information, and the first device can also be based on the second capability information and the third capability information , to determine first capability information jointly supported by the first device and the second device.
  • the second capability information may be used to indicate the device capability supported by the second device
  • the third capability information may be used to indicate the device capability supported by the first device.
  • the device capability negotiation between the first device and the second device may include that the first device sends a first acquisition request to the second device, and the second device sends the second battery information to the first device based on the first acquisition request. information and second capability information, the first device receives the second battery information and the second capability information, and determines the first capability information based on the second capability information and the third capability information. That is, the first device no longer sends the first battery information and the third capability information to the second device.
  • first device and the second device may also perform device capability negotiation in other ways, and this embodiment of the present application does not specifically limit the device capability negotiation method.
  • the first device may send a second obtaining request to the second device, and the second device feeds back the first service type to the first device based on the second obtaining request.
  • the first device and the second device may also perform service type negotiation in other ways, and this embodiment of the present application does not specifically limit the way of service type negotiation.
  • service types can be classified according to service functions, such as video service or webpage service.
  • the service type can be divided according to the data flow direction of the service, such as a one-way flow service or a two-way flow service. It should be noted that the division method of service types can be determined in advance by relevant technical personnel. In practical applications, service types can also be divided according to other aspects of the service to be transmitted. The embodiment of the present application does not divide the service types The method is specifically limited.
  • the first capability information is used to indicate that the first device and the second device support at least one first adjusted multiple input multiple output (MIMO) mode
  • the first device Determining a first transmission parameter based on at least one of the first battery information and the second battery information and the first service type and the first capability information includes:
  • the first device determines a second MIMO mode from the at least one first MIMO mode based on at least one of the first battery information and the second battery information and the first service type.
  • the first capability information is used to indicate that the first device and the second device support adjusting the maximum MIMO mode, without enumerating the supported multiple first MIMO modes one by one;
  • the method further includes:
  • the first device determines at least one first MIMO mode jointly supported by the first device and the second device;
  • the first device determines a first transmission parameter based on at least one of the first battery information and the second battery information and the first service type and the first capability information, including:
  • the first device determines a second MIMO mode from the at least one first MIMO mode based on at least one of the first battery information and the second battery information and the first service type.
  • the first MIMO mode may include M out and N in, M is the number of transmit antennas, N is the number of receive antennas, M and N are positive integers, and M and N may be the same.
  • the first device may determine in advance (for example, based on the Wi-Fi protocol) at least one MIMO mode supported by the second device, and based on the at least one MIMO mode supported by the second device and the at least one MIMO mode supported by the first device mode, to determine at least one first MIMO mode jointly supported by the first device and the second device.
  • the at least one first MIMO mode may not be determined by the first device based on the at least one MIMO mode supported by the second device and the at least one MIMO mode supported by the first device, but may be preset in the first device MIMO mode supported by the first device or the MIMO mode supported by the first device, then the first device may also, in the case of determining that the first capability information is used to indicate that the first device and the second device support the adjustment of the maximum MIMO mode, in the preset or first The second MIMO mode is determined in at least one first MIMO mode supported by the device.
  • the first device may store a correspondence between battery information, capability information, service types, and transmission parameters, and the correspondence includes at least one battery information, capability information, at least one service type, and at least one transmission parameter .
  • the first device may acquire the first transmission parameter corresponding to at least one of the first battery information and the second battery information and the first service type and the first capability information from the correspondence.
  • the first device may input at least one of the first battery information and the second battery information, as well as the first business type and the first capability information into a trained machine learning model, and obtain The first transfer parameter.
  • the first capability information is used to indicate at least one first bandwidth supported by the first device and the second device, and the first device is based on the first battery information and the second battery information At least one of the information and the first service type and the first capability information determine a first transmission parameter, including:
  • the first device determines a second bandwidth from the at least one first bandwidth based on at least one of the first battery information and the second battery information and the first service type.
  • the first capability information is used to indicate that the first device and the second device support adjusting the maximum bandwidth, without enumerating the supported multiple first bandwidths one by one; in the first device Based on at least one of the first battery information and the second battery information and the first service type and the first capability information, before determining the first transmission parameter, the method further includes:
  • the first device determines a first transmission parameter based on at least one of the first battery information and the second battery information and the first service type and the first capability information, including:
  • the first device determines a second bandwidth from the at least one first bandwidth based on at least one of the first battery information and the second battery information and the first service type.
  • the first device may determine in advance (for example, based on the Wi-Fi protocol) at least one bandwidth mode supported by the second device, and based on the at least one bandwidth supported by the second device and the at least one bandwidth supported by the first device, determine At least one first bandwidth commonly supported by the first device and the second device.
  • the at least one first bandwidth may not be determined by the first device based on the at least one bandwidth supported by the second device and the at least one bandwidth supported by the first device, but the bandwidth preset in the first device or bandwidth supported by the first device, then the first device may also, when it is determined that the first capability information is used to indicate that the first device and the second device support adjusting the maximum bandwidth, at least one preset or supported by the first device Determine the second bandwidth in the first bandwidth.
  • the first battery information is used to indicate the battery capacity of the first device, the remaining battery power of the first device, the plug-in state of the first device, and the power saving of the first device
  • the plug-in state of the first device includes the current power supply or no power supply
  • the power-saving mode state of the first device includes whether the power-saving mode is turned on
  • the second battery information Used to indicate at least one of the battery capacity of the second device, the remaining battery power of the second device, the plug-in state of the second device, and the power-saving mode state of the second device, the second device
  • the plug-in state of the second device includes whether it is currently connected to a power source or not connected to a power source, and the state of the power saving mode of the second device includes whether the power saving mode is turned on.
  • connection type between the first device and the second device is point-to-point (peer-to-peer, P2P), and the first device is a group owner (group owner, GO), The second device is a group client (group client, GC).
  • the first capability information is used to indicate that the first device and the second device support data transmission scheduling based on active notification (notification of active, NoA) signaling, and the first device based on the At least one of the first battery information and the second battery information, as well as the first service type and the first capability information, determine a first transmission parameter, including:
  • the first device determines a first NoA policy based on at least one of the first battery information and the second battery information, the first service type, and the first capability information.
  • the first transmission parameter may include at least one of the first NoA policy, the second MIMO mode, and the second bandwidth.
  • the first NoA policy may include a first transmission period interval and a first sleep period.
  • the more sensitive the first device and the second device are to power consumption the lower the power consumption of the transmission mode indicated by the first transmission parameter may be.
  • the first device and the second device are not powered on, and the lower the battery capacity and remaining power, the longer the first sleep period in the first NoA strategy can be, and the N and M in the second MIMO mode can be The lower the value, the lower the value of the second bandwidth can be.
  • the first device and the second device may start to enter the sleep state (ie, the first sleep period) at intervals of the first transmission period, and when the first sleep period At the end, the first device and the second device may be in a wake-up state, and in the wake-up state, the first device and the second device perform data transmission, for example, the first device may send data to the second device. Therefore, the first device and the second device can adjust the transmission period interval and the sleep period based on the support of both parties, so that the timing and duration of the sleep match the power status of at least one party and the service type of the transmitted data.
  • the problem of wasting power consumption can be reduced, and the problem of user experience degradation caused by the mismatch between the transmission mode and the service type can also be reduced. Wherein, when the duration of the first sleep period is longer, the power consumption generated by the first device and the second device is lower.
  • the first device and the second device receive and send data based on the second MIMO mode.
  • the first device and the second device can adjust the working mode of the antenna based on the support of both parties, so that the working mode of the antenna matches the power state of at least one party and the service type of the transmitted data, thereby reducing the waste of power consumption question.
  • the first device and the second device may use the second bandwidth as a maximum bandwidth for data transmission.
  • the first device and the second device can adjust the transmission bandwidth based on the support of both parties, so that the transmission bandwidth matches the power state of at least one party and the service type of the transmitted data, thereby reducing the waste of power consumption.
  • the first device and the second device are devices in the same device-to-device (D2D) domain, and the connection type between the first device and the second device It is a D2D type, the first device is a transmission master device, the second device is a transmission slave device, and the transmission master device is used to perform a data transmission process between the transmission master device and the transmission slave device control.
  • D2D device-to-device
  • the first capability information is used to indicate that the first device and the second device support scheduling of time slot TS, and the first device At least one of the information and the first service type and the first capability information determine a first transmission parameter, including:
  • the first device determines a first TS policy based on at least one of the first battery information and the second battery information and the first service type and the first capability information.
  • the first transmission parameter may include at least one of the first TS strategy, the second MIMO mode, and the second bandwidth.
  • the first TS policy may be used to indicate a TS in an awake state and a TS in a sleep state, and an electronic device performing data transmission may perform sleep or data transmission in units of TS.
  • the first TS policy may indicate a TS for indicating an awake state and a TS for a sleep state by means of a bitmap (bitmap).
  • the first TS policy may be used to indicate the length of the discovery period, such as the total number of TSs included in the discovery period.
  • a discovery cycle may include a discovery window (discovery window, DW) and a business period, and at least one TS in the discovery cycle may correspond to the discovery window, so as to be used for clock synchronization.
  • Other TSs may correspond to business periods, the electronic device performing data transmission may sleep in a TS in a dormant state corresponding to the business period, and perform data transmission in a TS in an awake state corresponding to the business period.
  • the number of TSs used for clock synchronization in each discovery cycle can be obtained by notifying the domain master device to the domain slave device. Of course, the domain slave device can also determine the number of each discovery cycle in other ways. The number of TSs used for clock synchronization, the embodiment of the present application does not specifically limit the manner of determining the number of TSs used for clock synchronization in each discovery cycle.
  • the domain master device is the third device instead of the first device, and the first device does not transmit data to other electronic devices, the first device may also enter a sleep state in the second TS.
  • the first device and the second device can sleep in units of TS based on the first TS strategy, which improves the control accuracy of timing and duration of sleep, thereby further reducing power consumption.
  • the first device is a domain slave device
  • the D2D domain further includes a third device serving as a domain master device
  • the method further includes:
  • the first device determines a first synchronization period based on the first battery information
  • the first device performs clock synchronization with the third device based on the first synchronization period.
  • the first synchronization period may be an integer multiple of the discovery period.
  • the first device may perform clock synchronization with the third device within a discovery window in a discovery period corresponding to the first synchronization period. Then, in the DW of the discovery period not corresponding to the first synchronization period, the first device can enter a sleep state during the time originally used for clock synchronization, thereby reducing power consumption.
  • the method also includes:
  • the first device notifies the third device of the first synchronization period.
  • the third device may send control commands to the first device in the DW, such as controlling the first device to turn off the power, etc. If the first device is in a certain If the DW period of the discovery cycle is in a dormant state, the control instruction may not be received. Therefore, the first device may notify the third device of the determined first synchronization cycle, so as to improve the stability of the transmission system.
  • the first device determines a first measurement period based on the first battery information
  • the first device measures the communication quality of the connection with the second device based on the first measurement cycle.
  • the first device may measure the communication quality of the connection with the second device during a service period in the discovery cycle corresponding to the first measurement cycle. Then, in the business period not corresponding to the first measurement period, the first device may not perform communication quality measurement, and the time originally used for measurement may be used for sleep, thereby reducing power consumption.
  • the first measurement period and the second measurement period may be integer multiples of the discovery period.
  • the first device determines the first measurement period, and measures the communication quality of the connection between the first device and the second device during a business period in the discovery period corresponding to the first measurement period.
  • the second device determines the second measurement period, and measures the communication quality of the connection between the first device and the second device during a business period in the discovery period corresponding to the first measurement period, The measurement result is notified to the first device, and the corresponding first device can also receive the measurement result.
  • the first device transmitting data with the second device based on the first transmission parameter includes:
  • the first device obtains a plurality of first data packets to be transmitted
  • the first device aggregates the plurality of first data packets into a second data packet
  • the first device sends the second data packet to the second device based on the first transmission parameter.
  • the first device may transmit a first data packet to the second device every first time interval.
  • the first transmission interval may be relatively short, and it is difficult for the first device and the second device to sleep within the first transmission interval, so the first device can aggregate multiple first data packets to obtain a larger second data packet , and send the second data packet to the second device. That is, the first device can collectively send multiple first data packets to the second device, and the transmission method is changed from sending one first data packet every first time interval to sending one second data packet every second time interval , the multiple shorter first durations originally required for sending the multiple first data packets may be aggregated into one longer second duration.
  • the first device and the second device can sleep in the second time period, so as to save power consumption.
  • a data transmission device is provided, and the communication device is configured to execute the method in any possible implementation manner of the foregoing first aspect.
  • the communication device may include a processing unit and a transceiver unit.
  • the transceiver unit can communicate with the outside, and the processing unit is used for data processing.
  • the transceiver unit may also be referred to as a communication interface or a communication unit.
  • the communication device may be used to perform the actions performed by the first device in any possible implementation manner of the first aspect.
  • the communication device may be referred to as the first device, and the transceiver unit is used to perform any In a possible implementation manner, the first device performs operations related to sending and receiving, and the processing unit is configured to perform operations related to processing of the first device in any possible implementation manner of the first aspect.
  • an embodiment of the present application provides an electronic device, including: a memory and a processor, where the memory is used to store a computer program; and the processor is used to execute the method described in any one of the above first aspects when calling the computer program.
  • an embodiment of the present application provides a chip system, the chip system includes a processor, the processor is coupled to a memory, and the processor executes a computer program stored in the memory to implement any of the above-mentioned first aspects. one of the methods described.
  • the chip system may be a single chip, or a chip module composed of multiple chips.
  • the embodiments of the present application provide a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method described in any one of the above-mentioned first aspects is implemented.
  • an embodiment of the present application provides a computer program product, which, when the computer program product is run on an electronic device, causes the electronic device to execute the method described in any one of the above-mentioned first aspects.
  • FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a data transmission system provided by an embodiment of the present application.
  • FIG. 3 is a timing diagram of transmitting data provided by an embodiment of the present application.
  • FIG. 4 is a timing diagram of another transmission data provided by the embodiment of the present application.
  • FIG. 5 is a schematic diagram of another data transmission system provided by the embodiment of the present application.
  • FIG. 6 is a schematic diagram of a discovery cycle provided by an embodiment of the present application.
  • FIG. 7 is a flowchart of a data transmission method provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a MIMO mode provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another MIMO mode provided by the embodiment of the present application.
  • FIG. 10 is a timing diagram for transmitting video frames provided by an embodiment of the present application.
  • FIG. 11 is a flow chart of another data transmission method provided by the embodiment of the present application.
  • FIG. 12 is a flow chart of a method for determining a synchronization period or a measurement period provided in an embodiment of the present application
  • FIG. 13 is a timing diagram of another discovery cycle provided by the embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a data transmission device provided by an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • the Wi-Fi-based data transmission method provided in the embodiment of the present application can be applied to mobile phones, tablet computers, wearable devices, vehicle-mounted devices, augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) equipment, notebook computers , ultra-mobile personal computer (ultra-mobile personal computer, UMPC), netbook, personal digital assistant (personal digital assistant, PDA), gateway and other electronic devices, the embodiments of the present application do not make any restrictions on the specific types of electronic devices.
  • Wi-Fi is a wireless local area network technology based on the Institute of Electrical and Electronics Engineers (Institute of Electrical and Electronics Engineers, IEEE) 802.11 standard, and it can also be commonly referred to as wireless fidelity (Wi-Fi).
  • FIG. 1 is a schematic structural diagram of an example of an electronic device 100 provided by an embodiment of the present application.
  • the electronic device 100 may include a processor 110, a memory 120, a communication module 130, and the like.
  • the processor 110 may include one or more processing units, and the memory 120 is used for storing program codes and data.
  • the processor 110 may execute computer-executed instructions stored in the memory 120 for controlling and managing the actions of the electronic device 100 .
  • the communication module 130 may include a Wi-Fi chip, so as to be used for communication between the electronic device 100 and other external electronic devices, and the like.
  • the communication module 130 receives electromagnetic waves via the antenna 1, frequency-modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110; receives the signals to be sent from the processor 110, performs frequency modulation on them, amplifies them, and converts the signals through the antenna 1 into Electromagnetic waves radiate out.
  • the communication module 130 can be coupled with the antenna 1 .
  • the number of antennas 1 may be one or more, and each antenna 1 may cover a single or multiple communication frequency bands.
  • the communication module 130 may control the antenna 1 for receiving or transmitting signals.
  • the communication module 130 may include a sending end 131 and a receiving end 132 .
  • the communication module 130 can send electromagnetic wave signals through the sending end 131 and receive electromagnetic signals through the receiving end 132 .
  • the communication module 130 can control the number of antennas 1 connected to the transmitting end 131 or the receiving end 132 through MIMO technology.
  • the MIMO technology refers to using multiple antennas at the transmitting end 131 and the receiving end 132 respectively, so that signals are transmitted and received through multiple antennas at the transmitting end 131 and the receiving end 132, thereby improving communication quality. It can make full use of space resources, realize multi-transmission and multi-reception through multiple antennas, and can double the system channel capacity without increasing spectrum resources and antenna transmission power.
  • MIMO techniques can include spatial diversity and spatial multiplexing.
  • Space diversity refers to the use of multiple antennas to send signals with the same information through different paths, and at the same time obtain multiple independently fading signals of the same data symbol at the receiving end, so as to obtain the reliability of reception improved by diversity.
  • Spatial multiplexing is to divide the data to be transmitted into several data streams, and then transmit them on different antennas, thereby increasing the transmission rate of the system.
  • the communication module 130 may include an audio device, a radio frequency circuit, a Bluetooth chip, a near-field communication technology (near-field communication, NFC) module, etc., and the communication between the electronic device 100 and other electronic devices may be realized in various ways. Interaction between devices.
  • the electronic device 100 can also communicate with other electronic devices through a wired connection.
  • the communication module 130 can include an interface, etc., such as a USB interface. interface, Micro USB interface, USB Type C interface, etc.
  • the USB interface can be used to connect a charger to charge the electronic device 100, and can also be used to transmit data between the electronic device 100 and peripheral devices. It can also be used to connect headphones and play audio through them. This interface can also be used to connect other electronic devices, such as AR devices.
  • the communication module 130 can also be used for communication between various internal modules of the electronic device 100 .
  • the electronic device 100 may further include a display screen 140, and the display screen 140 may display images or videos in a man-machine interaction interface.
  • the electronic device 100 may also include a peripheral device 150, such as a mouse, a keyboard, a speaker, a microphone, and the like.
  • a peripheral device 150 such as a mouse, a keyboard, a speaker, a microphone, and the like.
  • the embodiment of the present application does not specifically limit the structure of the electronic device 100 .
  • the electronic device 100 may also include more or fewer components than shown in the figure, or combine certain components, or separate certain components, or arrange different components.
  • the illustrated components can be realized in hardware, software or a combination of software and hardware.
  • FIG. 2 is a schematic diagram of a data transmission system provided by an embodiment of the present application.
  • the system includes device A 210, device B 220 and device C 230, wherein the connections between device A 210 and device B 220 and between device A 210 and device C 230 are P2P connections, and the role of device A 210 For GO, the role of device B 220 and device C 230 is GC.
  • Device A 210 can broadcast NoA signaling, and device B 220 or device C 230 can receive the NoA signaling, and perform data transmission with device A 210 based on the NoA signaling.
  • the NoA signaling can be used to indicate the timing of data transmission and the timing of dormancy.
  • NoA signaling may include transmission start time, number of transmission periods, transmission period interval, and sleep period.
  • the transmission start time can be used to indicate the moment when data transmission is about to start;
  • the number of transmission periods can be used to indicate the number of transmission periods for data transmission;
  • the transmission period interval can be used to indicate the interval between two adjacent transmission periods The length of the interval, or it can also be understood as the transmission period;
  • the sleep period can be used to indicate the time period during which sleep can be performed within each transmission period, and each transmission period can include a sleep period, during which GO and GC
  • the radio frequency transceiver channel and the protocol stack of the physical layer and the media access control (MAC) layer can be turned off to enter a sleep state to reduce power consumption. During the remaining period of the transmission period, GO and GC can enter the wake-up state and for listening and data transmission.
  • MAC media access control
  • device A 210 broadcasts NoA signaling 1 to device B 220, indicates that the transmission start time is time 1 through NoA signaling 1, the number of transmission periods is 2, the interval of transmission periods is 33ms (milliseconds), and the sleep period is 20ms.
  • device A 210 notifies device B 220 of the scheduling strategy through NoA signaling 1
  • device A 210 and device B 220 can determine to enter the first transmission period at time 1, and in the first 20 ms of the first transmission period
  • device A Both 210 and device B 220 can sleep to reduce power consumption, and then perform data transmission within the remaining 13ms of the current transmission period, and then enter the second transmission period.
  • device A 210 broadcasts NoA signaling 2 to device B 220 again, and NoA signaling 2 indicates that the transmission start time is time 2, the number of transmission periods is 3, the transmission period interval is 33ms, and the sleep period is 20ms. After device A 210 notifies device B 220 of the scheduling strategy through NoA signaling 1, it performs data transmission for 3 transmission periods. After that, device A 210 can continue to broadcast NoA signaling 3 to device B 230 for subsequent data transmission.
  • device A 210 since device A 210 notifies all GCs, including device B 220 and device C 230, of NoA signaling by broadcasting, the transmission parameters used by device A 210 to transmit data to device B 220 and device C 230 Yes, device A 210 is only able to sleep if the sleep periods of device B 220 and device C 230 are perfectly synchronized. However, in practical applications, it may be difficult for the sleep period of the device B 220 and the device C 230 to be the same.
  • device B 220 is playing online video
  • the data transmitted between device A 210 and device B 220 includes video frames
  • the corresponding service type is video service
  • the transmission mode is to transmit one frame at a similar interval
  • the video frame while the device C 230 is displaying web pages, the data transmitted between the device A 210 and the device C 230 is web data, the corresponding service type is web service, the transmission mode is indeterminate interval and the amount of data transmitted each time is indefinite.
  • the device A 210 it is difficult for the device A 210 to enter the sleep state to save power consumption, and if the device A 210 is forced to enter the sleep state, it may not be able to send data to the device B 220 or the device C 230 in time, and then cause the video of the device B 220 to freeze Or equipment C 230 has problems such as response timeout, and user performance declines.
  • GCs may be included, and it can be understood that, although in Figure 2, device A 210 is a mobile phone and device B 220 is a smart TV, Device C 230 is a tablet computer, but in practical applications, device A 210, device B 220 or device C 230 can also be other electronic devices equipped with Wi-Fi chips as shown in Figure 1, and the embodiment of this application is not correct. Or GC equipment type to limit.
  • FIG. 5 is a schematic diagram of a data transmission system provided by an embodiment of the present application.
  • the system can also be called a D2D domain, including equipment D 510, equipment E 520, equipment F 530 and equipment G 540, wherein, between equipment D 510, equipment E 520, equipment F 530 and equipment G 540, Both can be connected via a D2D type of connection.
  • Device G 540 is a domain master device (or domain master node), and device D 510, device E 520 and device F 530 are domain slave devices (or domain slave nodes).
  • data transmission can be performed between any two electronic devices in the device D 510, the device E 520, the device F 530 and the device G 540, etc. , without having to be limited by roles such as GC or GO.
  • the device D 510 is a mobile phone
  • the device E520 is a home monitoring device
  • the device F 530 is a tablet computer.
  • the home monitoring device can project the monitoring screen to the mobile phone in one direction, and the mobile phone can also realize two-way multi-screen collaboration with the tablet computer.
  • Device G 540 can periodically broadcast a synchronization frame, as shown in Figure 6, the synchronization frame carries clock synchronization information, correspondingly, all domain slave devices, including device D 510, device E 520 and device F 530, can periodically monitor The synchronization frame is used to perform clock synchronization with the device D510 based on the clock synchronization information.
  • the device G 540 can also broadcast a discovery frame, which carries the network parameters of the system.
  • the device D 510, the device E 520 and the device F 530 can receive the discovery frame, and establish a network with the device G 540 based on the network parameters. D2D type connection.
  • the domain slave device can receive the synchronization frame of the device G 540 and perform clock synchronization based on the synchronization frame, and can also receive the service discovery frame of other domain slave devices, and based on the service discovery frame carried in the service discovery frame Device identity information such as a device ID, and establish a D2D connection with the other domain slave device.
  • Each discovery cycle can also include a business period, and within the business period, any two electronic devices (such as device D 510 and device E 520) in the system can perform data transmission, wherein the two electronic devices that perform data transmission One of them is the transmission master device, and the other is the transmission slave device.
  • the transmission master device can control the data transmission process, such as controlling switching channels.
  • the transmission slave device or the transmission master device may also measure the communication quality of the data transmission connection during the service period, so that the transmission master device may perform channel switching and other anti-interference operations based on the measurement results.
  • FIG. 5 more or fewer domain slave devices may be included, and it can be understood that although in FIG. 5, device D 510 is a mobile phone, and device E 520 is a home Monitoring equipment, equipment F 530 is a tablet computer, equipment G 540 is a router, but in practical applications, equipment D 510, equipment E 520 or equipment F 530 can also be other devices with Wi-Fi chips as shown in Figure 1
  • the embodiment of the present application does not limit the device types of the domain master device and the domain slave device.
  • the MIMO mode and maximum bandwidth of the two electronic devices for data transmission are also fixed, which may also cause Wasted power consumption.
  • the actual time period for transmitting the data may be shorter than the allocated time period for transmission, but the electronic device performing the transmission cannot enter a dormant state.
  • the transmitted data is 1080P*360 frames per second (frame per second, FPS) audio and video
  • a frame of data is transmitted every 33.3ms
  • the transmission bandwidth is 80MHz (megahertz)
  • 80us Microseconds
  • an embodiment of the present application provides a Wi-Fi-based data transmission method.
  • the first device may negotiate with the second device to obtain at least one of the first battery information of the first device and the second battery information of the second device, and the common The supported first capability information and the first service type corresponding to the data to be transmitted.
  • the first transmission parameter that is, a device jointly supported by the first device and the second device Within the capability range, select a transmission mode that matches the first service type of the data to be transmitted and the battery state of at least one of the first device and the second device. Then, by performing data transmission in this transmission manner, the power consumption of at least one of the first device and the second device can be reduced.
  • FIG. 7 is a flowchart of a Wi-Fi-based data transmission method provided by an embodiment of the present application.
  • This method can be applied to the system shown in Figure 2, the first device can be GO, such as device A 210, and the second device can be GC, such as device B 220 or device C 230.
  • the method is not limited to the specific order shown in FIG. 7 and the following description. It should be understood that in other embodiments, the order of some steps in the method can be exchanged according to actual needs, or some steps in the method can be exchanged according to actual needs. It can also be omitted or deleted.
  • the method comprises the steps of:
  • the first device establishes a P2P connection with the second device.
  • the first device performs device capability negotiation with the second device to obtain at least one of the first battery information and the second battery information and the first capability information.
  • the first battery information may be used to indicate the battery status of the first device; the second battery information may be used to indicate the battery status of the second device; the first capability information may be capability information jointly supported by the first device and the second device, Therefore, it is possible to indicate the common device capabilities of the first device and the second device.
  • the first device and the second device can confirm the battery status of both parties and whether they support adjusting the data transmission mode, for example, whether they support transmission in a mode of lower power consumption.
  • the first battery information may be used to indicate at least one of the battery capacity of the first device, the remaining battery power of the first device, the plug-in state of the first device, and the power-saving mode state of the first device,
  • the plug-in state of the first device includes whether it is currently connected to a power source or not connected to a power source, and the state of the power saving mode of the first device includes whether to enable the power saving mode;
  • the second battery information can be used to indicate the battery capacity of the second device, the second At least one of the remaining battery power of the device, the plug-in state of the second device, and the power-saving mode state of the second device.
  • the power mode status includes whether to enable the power saving mode.
  • the value range of the power state includes 0, 1 and 2, wherein 0 indicates that the first device is currently powered by a battery and has a low power; 1 indicates that the first device is currently powered by a battery and has a high power; 2 indicates that the first device is currently in Plugged in.
  • the value range of the power saving mode includes 0 and 1, wherein 0 indicates that the first device has not turned on the power saving mode, and 1 means that the first device has turned on the power saving mode.
  • the first battery information in Table 1 above.
  • the way of at least one of the battery status and other battery status will be described without limiting the way the first battery information indicates the battery status. In practical applications, the first battery information can indicate the second battery status through more or fewer parameters. A device's battery status.
  • the first capability information may be used to indicate that the first device and the second device support data transmission scheduling based on NoA signaling.
  • the first capability information may be used to indicate at least one first MIMO mode supported by the first device and the second device.
  • the first device may determine in advance (such as based on the Wi-Fi protocol) at least one MIMO mode supported by the second device, and based on the at least one MIMO mode supported by the second device and the MIMO mode supported by the first device At least one MIMO mode, determining at least one first MIMO mode jointly supported by the first device and the second device, and the first capability information may be used to indicate whether the first device and the second device support adjusting the maximum MIMO mode, without requiring one by one The enumeration indicates at least one first MIMO mode supported.
  • the at least one first MIMO mode may not be determined by the first device based on the at least one MIMO mode supported by the second device and the at least one MIMO mode supported by the first device, but may be pre-determined in the first device. If the specified MIMO mode is set or the MIMO mode supported by the first device, then the first device may also, in the case of determining that the first capability information is used to indicate that the first device and the second device support adjusting the maximum MIMO mode, in the preset or second A second MIMO mode is determined in at least one first MIMO mode supported by a device.
  • the first MIMO mode may include M out and N in, M is the number of transmit antennas, N is the number of receive antennas, M and N are positive integers, and M and N may be the same.
  • the first capability information may be used to indicate at least one first bandwidth supported by the first device and the second device.
  • the first device may determine in advance (such as based on the Wi-Fi protocol) at least one MIMO mode supported by the second device, and based on the at least one MIMO mode supported by the second device and the MIMO mode supported by the first device at least one MIMO mode, determine at least one first MIMO mode jointly supported by the first device and the second device, and the first capability information may be used to indicate whether the first device and the second device support adjusting the maximum bandwidth, without requiring one by one Enumerates at least one first bandwidth supported.
  • the at least one first bandwidth may not be determined by the first device based on the at least one bandwidth supported by the second device and the at least one bandwidth supported by the first device, but the bandwidth preset in the first device Or the bandwidth supported by the first device, then the first device may also, when it is determined that the first capability information is used to indicate that the first device and the second device support the adjustment of the maximum bandwidth, at least one preset or supported by the first device The second bandwidth is determined in the first bandwidth.
  • the value range of adaptive MIMO includes 0 and 1, wherein 0 indicates that at least one of the first device and the second device does not support adjusting the maximum MIMO mode, and 1 indicates that the first device and the second device support adjusting the maximum MIMO mode.
  • the value range of the adaptive bandwidth includes 0 and 1, wherein 0 indicates that at least one of the first device and the second device does not support adjusting the maximum bandwidth, and 1 indicates that the first device and the second device support adjusting the maximum bandwidth.
  • the embodiment of the present application only uses the above-mentioned Table 2 to illustrate the manner in which the first capability information indicates the capability of the device, and does not limit the manner in which the first capability information indicates the capability of the device.
  • the first capability Information can indicate device capabilities through more or fewer parameters.
  • the device capability negotiation between the first device and the second device may include that the second device sends the second battery information and the second capability information of the second device to the first device, and the first device also sends the second device Send the first battery information and the third capability information of the first device, the first device and the second device can get the first battery information and the second battery information, and the first device can also be based on the second capability information and the third capability information , to determine first capability information jointly supported by the first device and the second device.
  • the second capability information may be used to indicate the device capability supported by the second device
  • the third capability information may be used to indicate the device capability supported by the first device.
  • the parameter types included in the second capability information and the third capability information may be the same as the parameter types included in the first capability information, so that the first device can determine the second capability information according to the first capability information and the third capability information.
  • Capability information may be the same as the parameter types included in the first capability information, so that the first device can determine the second capability information according to the first capability information and the third capability information.
  • the second capability information indicates that the second device supports data transmission scheduling based on NoA signaling
  • the third capability information indicates that the first device also supports data transmission scheduling based on NoA signaling
  • the first capability information may be used to indicate that the second device supports data transmission scheduling based on NoA signaling.
  • the first device and the second device support data transmission scheduling based on NoA signaling.
  • the second capability information indicates that the second device supports multiple third MIMO modes including 2 in 2 out and 1 in 1 out
  • the third capability information indicates that the multiple fourth MIMO modes supported by the first device include 4 in 4 out , 2 in 2 out and 1 in 1 out.
  • the first device may determine that at least one first MIMO mode indicated by the first capability information includes 2-in-2-out and 1-in-1-out.
  • the second capability information indicates that the second device supports adjusting the maximum MIMO mode
  • the third capability information indicates that the first device supports adjusting the maximum MIMO mode
  • the first capability information may indicate that both the first device and the second device support adjusting the maximum MIMO mode .
  • the second capability information indicates that the multiple third bandwidths supported by the second device include 40MHz and 80MHz
  • the third capability information indicates that the multiple fourth bandwidths supported by the first device include 40MHz, 80MHz, and 160MHz
  • the first device may It is determined that at least one first bandwidth indicated by the first capability information includes 40 MHz and 80 MHz.
  • the device capability negotiation between the first device and the second device may include that the first device sends a first acquisition request to the second device, and the second device sends the second battery information to the first device based on the first acquisition request. information and second capability information, the first device receives the second battery information and the second capability information, and determines the first capability information based on the second capability information and the third capability information. That is, the first device no longer sends the first battery information and the third capability information to the second device.
  • first device and the second device may also perform device capability negotiation in other ways, and this embodiment of the present application does not specifically limit the device capability negotiation method.
  • the first device negotiates the service type with the second device to obtain the first service type.
  • the types of services corresponding to the data they transmit may be different, and when transmitting data of different types of services, the requirements for transmission methods are also different.
  • video services In web services, one video frame can be transmitted at similar intervals; while in web services, the intervals are indeterminate and the amount of data transmitted each time is indefinite. If the amount of data to be transmitted is relatively large or relatively frequent, the power consumption generated will be relatively large; and if the amount of data to be transmitted is relatively small or only needs to be transmitted occasionally, then the first device or the second device can be used when idle. time to sleep to reduce power consumption. Therefore, in order to match the subsequent data transmission mode with the service type of the transmitted data, the first device and the second device may perform service type negotiation.
  • the first device may send a second obtaining request to the second device, and the second device feeds back the first service type to the first device based on the second obtaining request.
  • the first device and the second device may also perform service type negotiation in other ways, and this embodiment of the present application does not specifically limit the way of service type negotiation.
  • service types can be classified according to service functions, such as video service or webpage service.
  • the service type can be divided according to the data flow direction of the service, such as a one-way flow service or a two-way flow service. It should be noted that the division method of service types can be determined in advance by relevant technical personnel. In practical applications, service types can also be divided according to other aspects of the service to be transmitted. The embodiment of the present application does not divide the service types The method is specifically limited.
  • the value range of the first service type may include 0, 1 and 2, where 0 indicates web browsing, 1 indicates audio or video projection, and 2 indicates real-time control.
  • the first device determines a first transmission parameter based on at least one of the first battery information and the second battery information, the first service type, and the first capability information.
  • the first capability information can be used to indicate the device capabilities jointly supported by the first device and the second device, based on the first capability information, multiple transmission methods may be implemented between the first device and the second device, and these transmission Among the methods, there may be a certain transmission method that is more suitable for transmitting the data of the first service type, and the power consumption of a certain transmission method is lower, then the first device based on at least one of the first battery information and the second battery information and the first service Type and first capability information to determine the first transmission parameter, that is, to select the first service type of the data to be transmitted and the first device and the second device within the range of device capabilities supported by the first device and the second device At least one of the battery statuses matches the transport mode.
  • the first device may store a correspondence between battery information, capability information, service types, and transmission parameters, and the correspondence includes at least one battery information, capability information, at least one service type, and at least one transmission parameter .
  • the first device may acquire the first transmission parameter corresponding to at least one of the first battery information and the second battery information and the first service type and the first capability information from the correspondence.
  • the first device may input at least one of the first battery information and the second battery information, as well as the first business type and the first capability information into a trained machine learning model, and obtain The first transfer parameter.
  • the first device may also determine the first transmission parameter based on at least one of the first battery information and the second battery information, the first service type, and the first capability information in other ways.
  • the specific manner of determining the first transmission parameter based on at least one of the first battery information and the second battery information and the first service type and the first capability information is not limited.
  • the first transmission parameter may include at least one of a first NoA policy, a second MIMO mode, and a second bandwidth.
  • the first capability information indicates that the first device and the second device support data transmission scheduling based on NoA signaling, then the first device may base on at least one of the first battery information and the second battery information and the second A service type and first capability information to determine a first active notification NoA policy.
  • the first capability information indicates at least one first MIMO mode supported by the first device and the second device, and the first device may base on at least one of the first battery information and the second battery information and the first service Type, determine the second MIMO mode from at least one first MIMO mode; or, the first capability information indicates that the first device and the second device support adjusting the maximum MIMO mode, and the first device can determine from at least one first MIMO mode Second MIMO mode.
  • the first capability information indicates at least one first bandwidth supported by the first device and the second device, and the first device may be based on at least one of the first battery information and the second battery information and the first service type , determine the second bandwidth from at least one first bandwidth; or, the first capability information indicates that the first device and the second device support adjusting the maximum bandwidth, and the first device may determine the second bandwidth from at least one first bandwidth.
  • the first NoA policy may include a first transmission period interval and a first sleep period.
  • the more sensitive the first device and the second device are to power consumption the lower the power consumption of the transmission mode indicated by the first transmission parameter may be.
  • the first device and the second device are not powered on, and the lower the battery capacity and remaining power, the longer the first sleep period in the first NoA strategy can be, and the N and M in the second MIMO mode can be The lower the value, the lower the value of the second bandwidth can be.
  • the first device determines that the second battery information of the second device includes: power saving mode: 1, power state: 0, that is, the second device is currently in the power saving state, is not connected to a power source, and has low power;
  • the capability information includes: self-adaptive MIMO: 1, self-adaptive bandwidth: 1, that is, both the first device and the second device can adjust the maximum MIMO mode and maximum bandwidth; the first service type is determined to be 0, that is, web browsing.
  • the first device determines that the second MIMO mode is 1*1 (that is, 1 in 1 out), the second bandwidth is 20 MHz, the first transmission period interval included in the first NoA policy is 200 ms, and the first sleep period is 100 ms.
  • the second battery information and the first capability information remain unchanged, but the first service type is 1, that is, audio or video projection, then the first device determines that the second MIMO mode is 1*1, and the second bandwidth is 40MHz.
  • a NoA policy includes a first transmission period interval of 33ms and a first sleep period of 10ms.
  • the second battery information and the first capability information remain unchanged, but the first service type is 2, that is, audio or video projection, then the first device determines that the second MIMO mode is 2*2 (that is, 2 in 2 out), The second bandwidth is 40 MHz, and the first NoA policy is not determined, that is, NoA scheduling is disabled.
  • the first device can determine the matching first transmission parameter through the second battery information, the first capability information and the first service type, when the second battery information, the first capability information and the first service type When at least one (such as the first service type) is different, the determined first transmission parameters are also different, matching the battery status of at least one of the two parties and the service type of the transmitted data, which can reduce the problem of waste of power consumption and reduce The problem of user experience degradation caused by the mismatch between the transmission mode and the service type is solved.
  • the first device notifies the second device of the first transmission parameter.
  • the first transmission parameter may include at least one of the first NoA strategy, the second MIMO mode, and the second bandwidth.
  • the first device may send the first NoA signaling to the second device, where the first NoA signaling carries the first NoA policy.
  • the second device when it obtains the first transmission parameter, it may send a corresponding response to the first device, so that the first device determines that the second device has obtained the first transmission parameter.
  • the first device performs data transmission with the second device based on the first transmission parameter.
  • the selection matches the first service type of the data to be transmitted and the battery status of at least one of the first device and the second device Therefore, the first device performs data transmission with the second device based on the first transmission parameter, that is, at least one of the first device and the second device can reduce power consumption.
  • the first device and the second device may start to enter the sleep state (ie, the first sleep period) at intervals of the first transmission period, and when the first sleep period At the end, the first device and the second device may be in a wake-up state, and in the wake-up state, the first device and the second device perform data transmission, for example, the first device may send data to the second device. Therefore, the first device and the second device can adjust the transmission period interval and the sleep period based on the support of both parties, so that the timing and duration of the sleep match the power status of at least one party and the service type of the transmitted data.
  • the problem of wasting power consumption can be reduced, and the problem of user experience degradation caused by the mismatch between the transmission mode and the service type can also be reduced. Wherein, when the duration of the first sleep period is longer, the power consumption generated by the first device and the second device is lower.
  • the first device and the second device receive and send data based on the second MIMO mode, such as using the second MIMO mode as the maximum MIMO mode.
  • the first device and the second device can adjust the working mode of the antenna based on the support of both parties, so that the working mode of the antenna matches the power state of at least one party and the service type of the transmitted data, thereby reducing the waste of power consumption question.
  • the power consumption generated by the first device and the second device is lower.
  • the first device and the second device support a 2-in 2-out mode as shown in FIG. 8 and a 1-in 1-out mode as shown in FIG. 9 .
  • the 2-in 2-out mode is to send or receive data through 2 antennas
  • the 1-in 1-out mode is to send or receive data through 1 antenna.
  • the power consumption generated by the 2-in 2-out mode is higher than that generated by the 1-in 1-out mode, but the data transmission efficiency of the 2-in 2-out mode is also higher than that of the 1-in 1-out mode.
  • the first device and the second device can perform data transmission in 1-in-1-out mode, thereby reducing power consumption; and if the first service type has high requirements on transmission efficiency , then the first device and the second device can perform data transmission in a 2-in-2-out mode, thereby ensuring transmission efficiency.
  • the first device and the second device may use the second bandwidth as a maximum bandwidth for data transmission.
  • the first device and the second device can adjust the transmission bandwidth based on the support of both parties, so that the transmission bandwidth matches the power state of at least one party and the service type of the transmitted data, thereby reducing the waste of power consumption. Wherein, when the second bandwidth is smaller, the generated power consumption is lower.
  • the first device may obtain multiple first data packets to be transmitted, and aggregate the multiple first data packets into a second data packet, based on the first A transmission parameter is used to send the second data packet to the second device.
  • the first device may transmit a first data packet to the second device every first time interval.
  • the first transmission interval may be relatively short, and it is difficult for the first device and the second device to sleep within the first transmission interval, so the first device can aggregate multiple first data packets to obtain a larger second data packet , and send the second data packet to the second device. That is, the first device can collectively send multiple first data packets to the second device, and the transmission method is changed from sending one first data packet every first time interval to sending one second data packet every second time interval , the multiple shorter first durations originally required for sending the multiple first data packets may be aggregated into one longer second duration.
  • the first device and the second device can sleep in the second time period, so as to save power consumption.
  • the number of first data packets included in the second data packet can be 2, 3, 4, etc., or other values, and the embodiment of the present application does not set this number To limit.
  • the transmitted data is a video frame
  • the first device obtains and encodes the image through the application program, and can generate a video frame every 16.7ms , where the moment when the first device generates the nth video frame is t 1 +16.7*(n-1). If it is a single frame transmission, the first device sends a video frame to the second device every 16.7ms, and the second device receives the video frame every 16.7ms and decodes and displays the video frame.
  • the first duration is 16.7ms, which is relatively short, and it is difficult for the first device and the second device to sleep within this duration.
  • the first device can aggregate and transmit two video frames, and the second duration of the video frame transmission interval becomes 33.4ms, wherein, the moment when the first device transmits the nth frame and the n+1th video frame is t 1 +16.7*(n-1)+d n , where d n is the time delay when the first device sends the nth and n+1th video frames.
  • the second device receives 2 video frames at an interval of 33.4ms and buffers the 2 video frames in the video buffer, but still obtains each frame of image from the video buffer according to the cycle of 16.7ms for decoding and displaying, wherein, the first The moment when the second device displays the nth video frame is t 1 +d 1 + ⁇ +16.7*(n-1), where ⁇ is the transmission time. It can be seen from the comparison that the second duration is longer than the first duration, and the first device and the second device can sleep during the 33.4ms, thereby saving power consumption.
  • the device capabilities, power states, and service types of the transmitted data of the first device and the second device may also change, and the corresponding , the first device and the second device perform steps similar or identical to at least some of the steps in S702-S706 again, so as to obtain at least one of new capability information, new battery information, and new business type, and re-determine the second transmission parameters, and perform data transmission according to the newly determined second transmission parameters. That is, the first device and the second device do not need to execute S701 every time they execute the data transmission method provided by the embodiment of the present application.
  • the first device and the second device may be based on at least one of the first battery information and the second battery information 1.
  • the first device may negotiate with the second device to obtain at least one of the first battery information of the first device and the second battery information of the second device, and the common The supported first capability information and the first service type corresponding to the data to be transmitted. Based on at least one of the first battery information and the second battery information of the second device, the first capability information, and the first service type, determine a first transmission parameter, that is, a device jointly supported by the first device and the second device Within the capability range, select a transmission mode that matches the first service type of the data to be transmitted and the battery state of at least one of the first device and the second device. Then, by performing data transmission in this transmission manner, the power consumption of at least one of the first device and the second device can be reduced.
  • a first transmission parameter that is, a device jointly supported by the first device and the second device within the capability range
  • the first transmission parameter includes the first NoA policy
  • the first device and the second device may start to enter the dormant state (that is, the first dormancy period) at intervals of the first transmission period, and when the first dormancy period ends, the first device
  • the first device and the second device may be in an awake state in which the first device and the second device are in a data transfer. Therefore, the first device and the second device can adjust the transmission period interval and the sleep period based on the support of both parties, so that the timing and duration of the sleep match the battery status of at least one of the two parties and the service type of the transmitted data. It can not only reduce the problem of power consumption waste, but also reduce the problem of user experience degradation caused by the mismatch between the transmission mode and the service type.
  • the first device may be based on Performing data transmission according to the first transmission parameter corresponding to the second device includes performing sleep according to the first NoA policy corresponding to each second device.
  • the first device is device A 210
  • the second device includes device B 220 and device C 230
  • the policy may be corresponding to the first business type negotiated with the device A 210 and the device B 220.
  • the first NoA policy in the first transmission parameter may be the same as that of the device A 210 and the device C 230.
  • the first business type negotiated by device C 230 corresponds, so device A 210 can sleep no matter whether it is in the process of data transmission with device B 220 or device C 230, avoiding the inability to sleep due to the adoption of a unified NoA policy The problem.
  • FIG. 11 is a flowchart of a Wi-Fi-based data transmission method provided by an embodiment of the present application.
  • the first device can be a transmission master device, such as device G 540
  • the second device and the fourth device can be transmission slave devices, such as device D 510 and device E 520.
  • the first device may also serve as the domain master device of the D2D domain where the first device is located, or the first device may not be the domain master device, and the domain master device of the D2D domain Other devices in , such as third devices.
  • the method is not limited to the specific order shown in FIG. 11 and the following description. It should be understood that in other embodiments, the order of some steps in the method can be exchanged according to actual needs, or some of the steps can be exchanged according to actual needs. Steps can also be omitted or deleted.
  • the method comprises the steps of:
  • the first device establishes a D2D type connection with the second device.
  • the second device can discover the first device as the domain master device through the synchronization frame broadcast by the first device, and establish a D2D type connection with the first device; if the first device is not The domain master device, the first device and the second device can first discover the third device as the domain master device, and then discover each other in the DW of the third device, and then establish a D2D type connection.
  • the first device and the second device can perform device discovery and authentication through Bluetooth and establish Bluetooth connection, and then negotiate to establish relevant information of a D2D type connection based on the Bluetooth connection, such as a channel number and a secret key, and then establish a D2D type connection based on the relevant information.
  • a D2D type connection based on the Bluetooth connection, such as a channel number and a secret key
  • the first device and the second device may also establish a D2D connection in other ways, and this embodiment of the present application does not specifically limit the way in which the first device and the second device establish a D2D connection.
  • the first device performs device capability negotiation with the second device to obtain at least one of the first battery information and the second battery information and the first capability information.
  • the first capability information may indicate whether the first device and the second device support scheduling of TSs.
  • a discovery cycle may include a DW and a service period, and a service period may include multiple TSs, and a TS is a basic scheduling unit in the service period.
  • the embodiment of the present application does not limit the discovery period, the duration of the DW or the TS.
  • the TS may be 16ms, and for example, as shown in FIG. 6, the discovery period may be 524ms, and the DW may be 16ms.
  • the first capability information may be used to indicate at least one first MIMO mode supported by the first device and the second device. Or, in some other embodiments, the first capability information may be used to indicate whether the first device and the second device support adjusting the maximum MIMO mode, without enumerating and indicating at least one supported first MIMO mode one by one.
  • the first capability information may be used to indicate at least one first bandwidth supported by the first device and the second device. Or, in some other embodiments, the first capability information may be used to indicate whether the first device and the second device support adjusting the maximum bandwidth, without enumerating at least one supported first bandwidth one by one.
  • the first device performs clock synchronization with the second device.
  • the clock synchronization between the first device and the second device is convenient for the subsequent first device and the second device to receive or send data according to the same or similar time period, thereby improving the reliability of data transmission.
  • the first device is a domain master device, and may broadcast clock synchronization information in the DW, and the clock synchronization information may carry a first time stamp for sending the clock synchronization information.
  • the second device receives the clock synchronization information, it can generate the second time stamp when the clock synchronization information is received, and based on the first time stamp and the second time stamp and the propagation speed of the optical signal, the second device can determine the second time stamp. If there is a time difference between the second device and the first device, the current first moment of the second device is adjusted based on the time difference, so as to complete clock synchronization with the first device.
  • the first device and the second device may also perform clock synchronization in other ways, and this embodiment of the present application does not specifically limit the clock synchronization method.
  • the first device and the second device may also determine the first synchronization period, and perform clock synchronization according to the first synchronization period, instead of performing synchronization in each discovery period, that is, S1103 is an optional step.
  • the first synchronization period may be an integer multiple of the discovery period.
  • the first synchronization period may be expressed as Q discovery periods, where Q is a positive integer greater than or equal to 2.
  • the manner of determining the first synchronization period may be as shown in FIG. 12 below.
  • the domain master device is the third device but not the first device
  • the first device and the second device may perform clock synchronization with the third device in a manner similar to that of the second device in S1103.
  • the first device negotiates the service type with the second device to obtain the first service type.
  • the first device and the second device may determine, through negotiation, which of the first device and the second device is the transmission slave device and which one is the transmission master device.
  • the modes of the master device and the transmission slave device are not specifically limited.
  • the first device determines a first transmission parameter based on at least one of the first battery information and the second battery information, as well as the first service type and the first capability information.
  • the first capability information can be used to indicate the device capabilities jointly supported by the first device and the second device, based on the first capability information, multiple transmission methods may be implemented between the first device and the second device, and these transmission Among the methods, there may be a certain transmission method that is more suitable for transmitting the data of the first service type, and the power consumption of a certain transmission method is lower, then the first device based on at least one of the first battery information and the second battery information and the first service Type and first capability information to determine the first transmission parameter, that is, to select the first service type of the data to be transmitted and the first device and the second device within the range of device capabilities supported by the first device and the second device At least one of the battery statuses matches the transport mode.
  • the manner in which the first device determines the first transmission parameter based on at least one of the first battery information and the second battery information as well as the first service type and the first capability information can refer to the relevant description in S704, which will not be repeated here. Let me repeat them one by one.
  • the first transmission parameter may include at least one of a first time slot (time slot, TS) strategy, a second MIMO mode, and a second bandwidth.
  • the first capability information indicates that the first device and the second device support TS scheduling, then the first device based on at least one of the first battery information and the second battery information and the first service type and the second A capability information, to determine the first TS strategy.
  • the first capability information indicates at least one first MIMO mode supported by the first device and the second device, and the first device may base on at least one of the first battery information and the second battery information and the first service Type, determine the second MIMO mode from at least one first MIMO mode; or, the first capability information indicates that the first device and the second device support adjusting the maximum MIMO mode, and the first device can determine from at least one first MIMO mode Second MIMO mode.
  • the first capability information indicates at least one first bandwidth supported by the first device and the second device, and the first device may be based on at least one of the first battery information and the second battery information and the first service type , determine the second bandwidth from at least one first bandwidth; or, the first capability information indicates that the first device and the second device support adjusting the maximum bandwidth, and the first device may determine the second bandwidth from at least one first bandwidth.
  • the first TS policy may be used to indicate a TS in an awake state and a TS in a sleep state, and an electronic device performing data transmission may perform sleep or data transmission in units of TS.
  • the first TS policy may indicate a TS for indicating an awake state and a TS for a sleep state by means of a bitmap (bitmap).
  • the first TS policy may be used to indicate the length of the discovery period, such as the total number of TSs included in the discovery period.
  • a discovery cycle can be expressed as shown in Table 3 below
  • the first TS strategy can include a discovery cycle: 32, that is, a discovery cycle includes 32 TSs
  • the first TS strategy can also include a 32-bit bitmap : 1111 0000 0110 0000 1100 0011 0000 0110, to respectively indicate that the corresponding TS is in the wake-up state and the sleep state, where 0 means the sleep state and 1 means the wake-up state.
  • the first row of the Xth column may indicate the Xth TS in the discovery cycle, and the second row of the Xth column may indicate whether the TS is in a sleep state or an awake state.
  • a discovery cycle includes a discovery window and a business period.
  • at least one previous TS (such as the 0th and 1st TS) can correspond to the discovery window , so as to be used for clock synchronization, other subsequent TSs (such as the 2nd to 31st) can correspond to the business period, and the electronic equipment for data transmission can sleep in the TS corresponding to the business period.
  • the TS in the awake state corresponding to the service period performs data transmission.
  • the number of TSs used for clock synchronization in each discovery cycle can be obtained by notifying the domain master device to the domain slave device.
  • the domain slave device can also determine the number of each discovery cycle in other ways.
  • the number of TSs used for clock synchronization the embodiment of the present application does not specifically limit the manner of determining the number of TSs used for clock synchronization in each discovery cycle.
  • the first device determines that the second battery information of the second device includes: power saving mode: 1, power state: 0, that is, the second device is currently in the power saving state, is not connected to a power source, and has low power;
  • the capability information includes: self-adaptive MIMO: 1, self-adaptive bandwidth: 1, that is, both the first device and the second device can adjust the maximum MIMO mode and maximum bandwidth; the first service type is determined to be 0, that is, web browsing.
  • the first device determines that the second MIMO mode is 1*1 (that is, 1 in 1 out), the second bandwidth is 20 MHz, the first TS strategy includes a discovery period: 32, and a bitmap: 1110 0000 0110 0000 1100 0011 0000 0110.
  • a TS strategy includes discovery period: 32, bitmap: 1110 0100 0110 0010 1100 0100 0000 0110.
  • the second battery information and the first capability information remain unchanged, but the first service type is 2, that is, audio or video projection, then the first device determines that the second MIMO mode is 2*2 (that is, 2 in 2 out),
  • the second bandwidth is 40MHz
  • the first TS strategy includes discovery period: 32, bitmap: 1110 0100 0110 0010 1100 0100 0000 0110.
  • the first device can determine the matching first transmission parameter through the second battery information, the first capability information and the first service type, when the second battery information, the first capability information and the first service type When at least one (such as the first service type) is different, the determined first transmission parameters are also different, matching the battery status of at least one of the two parties and the service type of the transmitted data, which can reduce the problem of waste of power consumption and reduce The problem of user experience degradation caused by the mismatch between the transmission mode and the service type is solved.
  • the first device sends a transmission capability request to the second device, where the transmission capability request carries the first transmission parameter.
  • the second device may send a response corresponding to the transmission capability request to the first device.
  • the first device may also enable the second device to obtain the first transmission parameter through other means, such as broadcasting.
  • S1107 is an optional step.
  • the first device performs data transmission with the second device based on the first transmission parameter.
  • the first device and the second device may perform data transmission during a business period of the discovery cycle.
  • the first device and the second device may perform data transmission in a TS in an awake state corresponding to a service period, and a TS in a sleep state corresponding to a service period enters a dormant state.
  • the domain master device is the third device instead of the first device, and the first device does not transmit data to other electronic devices, the first device can also enter the dormant state in the TS corresponding to the business period state.
  • the first device and the second device can sleep in units of TS based on the first TS strategy, which improves the control accuracy of timing and duration of sleep, thereby further reducing power consumption.
  • the first device may obtain multiple first data packets to be transmitted, and aggregate the multiple first data packets into a second data packet, based on the first A transmission parameter is used to send the second data packet to the second device.
  • the first device determines the first measurement period, and measures the communication quality of the connection between the first device and the second device during a business period in the discovery period corresponding to the first measurement period.
  • the second device determines the second measurement period, and measures the communication quality of the connection between the first device and the second device during a business period in the discovery period corresponding to the first measurement period, The measurement result is notified to the first device, and the corresponding first device can also receive the measurement result.
  • the first measurement period and the second measurement period may be integer multiples of the discovery period.
  • the first synchronization period may be expressed as P discovery periods, where P is a positive integer greater than or equal to 2.
  • the manner in which the first device determines the first measurement period may be as shown in FIG. 12 below.
  • the device capabilities, power states, and service types of the transmitted data of the first device and the second device may also change, and accordingly Yes, the first device and the second device perform steps similar or identical to at least some of the steps in S1102-S1108 again, so as to obtain at least one of new capability information, new battery information, and new business type, and re-determine the first second transmission parameter, and perform data transmission according to the newly determined second transmission parameter. That is, the first device and the second device do not need to execute S1101 every time they execute the data transmission method provided by the embodiment of the present application.
  • the first device may negotiate with the second device to obtain at least one of the first battery information of the first device and the second battery information of the second device, and the common The supported first capability information and the first service type corresponding to the data to be transmitted. Based on at least one of the first battery information and the second battery information of the second device, the first capability information, and the first service type, determine a first transmission parameter, that is, a device jointly supported by the first device and the second device Within the capability range, select a transmission mode that matches the first service type of the data to be transmitted and the battery state of at least one of the first device and the second device. Then, by performing data transmission in this transmission manner, the power consumption of at least one of the first device and the second device can be reduced.
  • the first transmission parameter includes the first TS policy, and at least one of the first device and the second device can sleep in units of TS, which improves the timing and duration control precision of sleep, thereby further reducing power consumption.
  • the first device may also establish a D2D type connection with the fourth device and perform data transmission in a manner similar to that performed by the second device for data transmission.
  • the first device and the fourth device can establish a D2D type connection; in S1102, the first device and the fourth device can negotiate device capabilities; in S1103, the first device and the fourth device can negotiate Clock synchronization; in S1104, the first device and the fourth device may negotiate service capabilities.
  • the first device may determine the third transmission parameter in a manner similar to or the same as S1105; notify the fourth device of the third transmission parameter in a manner similar to or the same as S1106 and S1107; The fourth device performs data transmission.
  • the first device and the second device can base on the first transmission parameter and the second
  • the second device performs data transmission, and performs data transmission with the fourth device based on the third transmission parameter, which also realizes that when performing data transmission with different electronic devices, it can be based on the difference in device capabilities and battery status supported by each electronic device.
  • the data is transmitted through a matching transmission method.
  • steps similar or identical to at least some of the steps in S1101-S1108 may also be performed between the fourth device and the second device, so as to implement data transmission between the fourth device and the second device.
  • the fourth device and the second device can first conduct device capability negotiation to determine the device capabilities jointly supported by the second device, then if data transmission with the second device is required later , then there is no need to perform device capability negotiation with the second device again, reducing the waiting time before data transmission, thereby improving the efficiency of subsequent data transmission between the fourth device and the second device.
  • any device in the D2D domain can discover other devices in the same D2D domain in advance (for example, within the DW), and negotiate device capabilities with the other devices.
  • Other devices negotiate service capabilities, so that when subsequent data transmission with a certain device is required, transmission parameters can be directly determined based on the above negotiation results and data transmission can be performed based on the transmission parameters, thereby improving data transmission efficiency.
  • any device in the D2D domain may not negotiate device capabilities or service capabilities with other devices in the same D2D domain in advance, but negotiate with the device when it needs to perform data transmission with the device. ability.
  • FIG. 12 is a flowchart of a method for determining a synchronization period or a measurement period provided in an embodiment of the present application.
  • This method can be applied to the system shown in Figure 5.
  • the first device and the second device can be domain slave devices, such as device D 510, device E 520 or device F 530, and the third device can be a domain master device, such as device G 540.
  • the method is not limited to the specific order shown in FIG. 12 and the following description. It should be understood that in other embodiments, the order of some steps in the method can be exchanged according to actual needs, or some steps in the method can be exchanged according to actual needs. It can also be omitted or deleted.
  • the method comprises the steps of:
  • the first device establishes a D2D connection with a third device.
  • the manner in which the first device establishes the D2D connection with the third device may be similar to the manner in which the first device establishes the D2D connection with the second device in S1101 above, which will not be repeated here.
  • the first device performs clock synchronization with the third device.
  • the clock synchronization method between the first device and the third device may be similar to the clock synchronization method between the first device and the second device in S1103 above, and will not be repeated here.
  • the first device determines a first synchronization period and/or a first measurement period based on the battery information of the first device.
  • the first synchronization period and the first measurement period may be longer.
  • the first device may determine the first synchronization period and/or the first measurement period based on the first service type and battery information of the first device. In some embodiments, the first device may determine the first synchronization period based on at least one of crystal oscillator parameters and the first service type of the first device and battery information of the first device.
  • the crystal oscillator parameter may be used to indicate the clock accuracy of the first device, and the higher the clock accuracy, the longer the first synchronization period may be.
  • the first device may determine the first service type when determining the first synchronization period or the first measurement period.
  • the first device determines that the second battery information of the second device includes: power saving mode: 1, power state: 0, that is, the second device is currently in the power saving state, is not connected to a power source, and has low power; If the business type is 0, it means web browsing.
  • the first device determines that the synchronization period is 4 (discovery periods), and the measurement period is 4 (discovery periods).
  • the second battery information and the first capability information remain unchanged, but the first service type is 1, that is, audio or video projection, then the first device determines that the synchronization period is 4 (discovery periods), and the measurement period is 2 (discovery periods). discovery cycle).
  • the first device determines that the synchronization period is 4 (discovery periods), and the measurement period is 1 (discovery periods). discovery cycle). It can be seen that the first device can determine the matching discovery period and measurement period according to the second battery information and the first service type, when at least one of the second battery information and the first service type (such as the first service type) When they are different, the determined discovery period and measurement period are also different, which match the battery status of at least one of the two parties and the service type of the transmitted data, which can reduce waste of power consumption.
  • the first device notifies the third device of the first synchronization period.
  • the third device may send control commands to the first device in the DW, such as controlling the first device to turn off the power, etc. If the first device is in a certain If the DW period of the discovery cycle is in a dormant state, the control instruction may not be received. Therefore, the first device may notify the third device of the determined first synchronization cycle, so as to improve the stability of the transmission system.
  • the third device may not send a control instruction to the first device in the DW, therefore, the first device may not notify the third device of the first synchronization period, so S1204 is optional. step.
  • the first device may perform clock synchronization with the third device within a DW in a discovery period corresponding to the first synchronization period. Then, in the DW of the discovery period not corresponding to the first synchronization period, the first device can enter a sleep state during the time originally used for clock synchronization, thereby reducing power consumption.
  • the first synchronization cycle is 4 discovery cycles, that is, the first device performs clock synchronization with the third device every 4 discovery cycles, please refer to Figure 13, the first device is in the DW of the 4L+1 discovery cycle Perform clock synchronization with the third device, where L is a non-negative integer. Then in the DW in the 4L+1, 4L+2, and 4L+3 discovery cycles, the first device does not need to synchronize the clock with the third device, so in the time originally used for clock synchronization, you can enter dormant state.
  • the first device may measure the communication quality of the connection with the second device during the business period in the discovery cycle corresponding to the first measurement cycle . Then, in the business period not corresponding to the first measurement period, the first device may not perform communication quality measurement, and the time originally used for measurement may be used for sleep, thereby reducing power consumption.
  • the first device may determine the first synchronization period based on the battery information of the first device, and perform clock synchronization with the third device based on the first synchronization period. Periodic DWs that include time originally used for clock synchronization can be put to sleep, thereby reducing power consumption.
  • the first device may also determine the first measurement period based on the battery information of the first device, and measure the communication quality of the connection between the first device and the second device based on the first measurement period, so when it does not correspond to the first measurement period During the business period of the discovery cycle, the time originally used for measurement can be used for sleep, thereby reducing power consumption.
  • the second device may also perform a manner similar to S1201-S1204 to determine at least one of the first synchronization period or the first measurement period.
  • the embodiment of the present application provides a data transmission device.
  • the embodiment of the device corresponds to the embodiment of the method described above.
  • the details in the present invention will be described one by one, but it should be clear that the device in this embodiment can correspondingly implement all the content in the foregoing method embodiments.
  • FIG. 14 is a schematic structural diagram of a data transmission device 1400 provided in this embodiment of the present application.
  • the device provided in this embodiment includes: a processing unit 1410 and a transceiver unit 1420 .
  • the data transmission apparatus 1400 may correspond to the first device in the above method embodiment, for example, may be the first device, or a chip configured in the first device.
  • the data transmission apparatus 1400 is configured to execute each step or process corresponding to the first device in the above method.
  • the processing unit 1410 is configured to negotiate with the second device on at least one of the first battery information and the second battery information, the first capability information, and the first service type; based on at least one of the first battery information and the second battery information and The first service type and the first capability information determine the first transmission parameter;
  • a transceiver unit 1420 configured to send a first transmission parameter to the second device; transmit data with the second device based on the first transmission parameter;
  • the first battery information is used to indicate the battery status of the data transmission device 1400
  • the second battery information is used to indicate the battery status of the second device
  • the first capability information is used to indicate the devices jointly supported by the data transmission device 1400 and the second device Capability
  • the first service type is the service type corresponding to the data to be transmitted by the data transmission apparatus 1400 and the second device
  • the data transmission apparatus 1400 and the second device are connected through Wi-Fi.
  • the first capability information is used to indicate that the data transmission apparatus 1400 and the second device support at least one adjusted first MIMO mode
  • the processing unit 1410 is specifically configured to:
  • the second MIMO mode is determined from at least one first MIMO mode.
  • the first capability information is used to indicate that the data transmission apparatus 1400 and the second device support adjusting the maximum MIMO mode, and the processing unit 1410 is specifically configured to:
  • the second MIMO mode Based on at least one of the first battery information and the second battery information and the first service type, determine the second MIMO mode from at least one preset first MIMO mode.
  • the first capability information is used to indicate at least one first bandwidth supported by the data transmission apparatus 1400 and the second device, and the processing unit 1410 is specifically configured to:
  • the second bandwidth is determined from the at least one first bandwidth.
  • the first capability information is used to indicate that the data transmission apparatus 1400 and the second device support adjusting the maximum bandwidth
  • the processing unit 1410 is specifically configured to:
  • the second bandwidth is determined from at least one preset first bandwidth.
  • the first battery information is used to indicate the battery capacity of the data transmission device 1400, the remaining battery power of the data transmission device 1400, the plug-in state indication information of the data transmission device 1400, and the power saving mode status of the data transmission device 1400.
  • the plug-in status of the data transmission device 1400 includes whether the data transmission device 1400 is currently connected to a power source or not connected to a power source, and the power saving mode status of the data transmission device 1400 includes whether to enable the power saving mode;
  • the second battery information is used to indicate the first At least one of the battery capacity of the second device, the remaining battery power of the second device, the plug-in state of the second device, and the power-saving mode state of the second device.
  • the power saving mode status of the second device includes whether the power saving mode is turned on.
  • connection type between the data transmission apparatus 1400 and the second device is a P2P type
  • the data transmission apparatus 1400 is a GO
  • the second device is a GC.
  • the first capability information is used to indicate that the data transmission apparatus 1400 and the second device support data transmission scheduling based on NoA signaling, and the processing unit 1410 is specifically configured to:
  • a first NoA policy is determined.
  • the data transmission device 1400 and the second device are devices in the same D2D domain
  • the connection type between the data transmission device 1400 and the second device is a D2D type
  • the data transmission device 1400 is a transmission master device
  • the second device is a The transmission slave device is used for controlling the data transmission process between the transmission master device and the transmission slave device.
  • the first capability information is used to indicate that the data transmission apparatus 1400 and the second device support scheduling of TSs, and the processing unit 1410 is specifically configured to:
  • a first TS policy is determined.
  • the data transmission apparatus 1400 is a domain slave device, and the D2D domain further includes a third device serving as a domain master device, and the processing unit 1410 is further configured to:
  • clock synchronization is performed with the third device.
  • the transceiver unit 1420 is also used for:
  • the first synchronization period is notified to the third device.
  • processing unit 1410 is further configured to:
  • the communication quality of the connection with the second device is measured.
  • the transceiver unit 1420 is specifically configured to:
  • a second data packet is sent to the second device.
  • the data transmission apparatus 1400 may correspond to the second device in the above method embodiment, for example, may be the second device, or a chip configured in the second device.
  • the data transmission apparatus 1400 is configured to execute each step or process corresponding to the second device in the above method.
  • the data transmission devices of the above solutions have the function of realizing the corresponding steps performed by the first device or the second device in the above method, and have similar technical effects.
  • the functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions; for example, the communication unit can be replaced by a transceiver (for example, the sending unit in the communication unit can be replaced by a transmitter, and the receiving unit in the communication unit can be replaced by a receiver computer), and other units, such as a processing unit, may be replaced by a processor to respectively perform the sending and receiving operations and related processing operations in each method embodiment.
  • the above-mentioned communication unit may also be a transceiver circuit (for example, may include a receiving circuit and a sending circuit), and the processing unit may be a processing circuit.
  • the data transmission device in FIG. 14 may be the electronic device in the foregoing embodiments, or may be a chip or a chip system, for example, a system on chip (SoC).
  • the communication unit may be an input-output circuit or a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip. It is not limited here.
  • FIG. 15 is a schematic structural diagram of an electronic device 1500 provided by an embodiment of the present application.
  • the electronic device provided by this embodiment includes: a memory 1510 and a processor 1520, the memory 1510 is used to store computer programs; the processor 1520 uses The methods described in the above method embodiments are executed when the computer program is called.
  • the electronic device provided in this embodiment can execute the foregoing method embodiment, and its implementation principle and technical effect are similar, and details are not repeated here.
  • an embodiment of the present application further provides a chip system.
  • the chip system includes a processor, the processor is coupled to a memory, and the processor executes a computer program stored in the memory, so as to implement the methods described in the above method embodiments.
  • the chip system may be a single chip, or a chip module composed of multiple chips.
  • the embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method described in the above-mentioned method embodiment is implemented.
  • An embodiment of the present application further provides a computer program product, which, when the computer program product is run on an electronic device, enables the electronic device to implement the method described in the foregoing method embodiments.
  • the above integrated units are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the procedures in the methods of the above embodiments in the present application can be completed by instructing related hardware through computer programs, and the computer programs can be stored in a computer-readable storage medium.
  • the computer program When executed by a processor, the steps in the above-mentioned various method embodiments can be realized.
  • the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form.
  • the computer-readable storage medium may at least include: any entity or device capable of carrying computer program codes to the photographing device/terminal device, recording medium, computer memory, read-only memory (read-only memory, ROM), random access Memory (random access memory, RAM), electrical carrier signals, telecommunication signals, and software distribution media.
  • computer readable media may not be electrical carrier signals and telecommunication signals under legislation and patent practice.
  • the disclosed device/device and method can be implemented in other ways.
  • the device/device embodiments described above are only illustrative.
  • the division of the modules or units is only a logical function division.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the term “if” may be construed, depending on the context, as “when” or “once” or “in response to determining” or “in response to detecting “.
  • the phrase “if determined” or “if [the described condition or event] is detected” may be construed, depending on the context, to mean “once determined” or “in response to the determination” or “once detected [the described condition or event] ]” or “in response to detection of [described condition or event]”.
  • references to "one embodiment” or “some embodiments” or the like in the specification of the present application means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application.
  • appearances of the phrases “in one embodiment,” “in some embodiments,” “in other embodiments,” “in other embodiments,” etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean “one or more but not all embodiments” unless specifically stated otherwise.
  • the terms “including”, “comprising”, “having” and variations thereof mean “including but not limited to”, unless specifically stated otherwise.

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Abstract

本申请提供一种基于无线网络Wi-Fi的数据传输方法及电子设备,涉及终端技术领域,其中,该方法包括第一设备与第二设备协商第一电池信息和第二电池信息中的至少一个、第一能力信息以及第一业务类型;第一设备基于第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息,确定第一传输参数;第一设备向第二设备发送第一传输参数;第一设备基于第一传输参数与第二设备传输数据;其中,第一能力信息用于指示第一设备和第二设备共同支持的设备能力,第一业务类型为第一设备与第二设备待传输的数据对应的业务类型,第一设备和第二设备之间通过Wi-Fi连接。本申请提供的技术方案能够降低设备的功耗。

Description

基于无线网络Wi-Fi的数据传输方法及电子设备
本申请要求于2021年09月29日提交国家知识产权局、申请号为202111153020.9、申请名称为“基于无线网络Wi-Fi的数据传输方法及电子设备”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
本申请涉及终端技术领域,尤其涉及一种基于Wi-Fi(无线网络)的数据传输方法及电子设备。
背景技术
Wi-Fi是一种无线网络技术,具有高带宽、低功耗和低成本等优点,被广泛应用于家庭、办公室和商场等多种场景。电子设备之间可以通过Wi-Fi建立连接并进行数据传输。其中,当传输数据所需的功耗越低时,可以降低对电子设备的供电方式的需求,延长电子设备的使用寿命,因此,如何降低在基于Wi-Fi的数据传输过程中的功耗,也越来越受到广泛的关注。
现有技术中,电子设备可以事先确定固定的传输参数,基于该固定的传输参数与其他电子设备进行数据传输。但在实际应用中,进行数据传输的电子设备以及所传输的数据都可能是多样化的,而该固定的传输参数所指示的数据传输方式是固定的,不同的电子设备按照固定的传输方式进行数据传输,降低功耗的难度很大。
发明内容
有鉴于此,本申请提供一种基于Wi-Fi的数据传输方法及电子设备。
为了实现上述目的,第一方面,本申请实施例提供一种基于Wi-Fi的数据传输方法,所述方法包括:
第一设备与第二设备协商第一电池信息和第二电池信息中的至少一个、第一能力信息以及第一业务类型;
所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数;
所述第一设备向所述第二设备发送所述第一传输参数;
所述第一设备基于所述第一传输参数与所述第二设备传输数据;
其中,所述第一电池信息用于指示所述第一设备的电池状态,所述第二电池信息用于指示所述第二设备的电池状态,所述第一能力信息用于指示所述第一设备和所述第二设备共同支持的设备能力,所述第一业务类型为所述第一设备与所述第二设备待传输的数据对应的业务类型,所述第一设备和所述第二设备之间通过Wi-Fi连接。
在本申请实施例中,第一设备可以与第二设备协商,从而得到第一设备的第一电池信息和第二设备的第二电池信息中的至少一个,以及第一设备和第二设备共同支持的第一能力信息、待传输的数据对应的第一业务类型。基于第一电池信息和第二设备 的第二电池信息中的至少一个、第一能力信息和第一业务类型,确定第一传输参数,也即是在第一设备和第二设备共同支持的设备能力范围内,选择与待传输数据的第一业务类型以及第一设备和第二设备中至少一个的电池状态匹配的传输方式。那么通过该传输方式进行数据传输,便能够降低第一设备和第二设备中至少一个的功耗。
在一些实施例中,第一设备与第二设备进行设备能力协商可以包括,第二设备向第一设备发送第二设备的第二电池信息和第二能力信息,第一设备也向第二设备发送第一设备的第一电池信息和第三能力信息,第一设备和第二设备即可以得到第一电池信息和第二电池信息,第一设备也可以基于第二能力信息和第三能力信息,确定第一设备和第二设备共同支持的第一能力信息。其中,第二能力信息可以用于指示第二设备所支持的设备能力;第三能力信息可以用于指示第一设备所支持的设备能力。
在一些实施例中,第一设备与第二设备进行设备能力协商可以包括,第一设备向第二设备发送第一获取请求,第二设备基于第一获取请求,向第一设备发送第二电池信息和第二能力信息,第一设备接收第二电池信息和第二能力信息,并基于第二能力信息和第三能力信息,确定第一能力信息。即第一设备不再向第二设备发送第一电池信息和第三能力信息。
需要说明的是,第一设备和第二设备也可以通过其他方式来进行设备能力协商,本申请实施例对此设备能力协商的方式不做具体限定。
在一些实施例中,第一设备可以向第二设备发送第二获取请求,第二设备基于第二获取请求向第一设备反馈第一业务类型。当然,在实际应用中,第一设备和第二设备也可以通过其他方式来进行业务类型协商,本申请实施例对此业务类型协商的方式不做具体限定。
在一些实施例中,业务类型可以按照业务的功能划分,比如视频业务或网页业务。在另一些实施例中,业务类型可以按照业务的数据流向来划分,比如单向流业务或双向流业务。需要说明的是,业务类型的划分方式可以由相关技术人员事先确定,在实际应用中,业务类型也可以是按照待传输的业务的其他方面的特征来划分,本申请实施例不对业务类型的划分方式进行具体限定。
可选地,所述第一能力信息用于指示所述第一设备和所述第二设备支持调整的至少一个第一多进多出(multiple input multiple output,MIMO)模式,所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数,包括:
所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型,从所述至少一个第一MIMO模式中确定第二MIMO模式。
可选地,所述第一能力信息用于指示所述第一设备和所述第二设备支持调整最大MIMO模式,而不需要一一列举所支持的多个第一MIMO模式;在所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数之前,所述方法还包括:
所述第一设备确定所述第一设备和所述第二设备共同支持的至少一个第一MIMO模式;
所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述 第一业务类型和所述第一能力信息,确定第一传输参数,包括:
所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型,从所述至少一个第一MIMO模式中确定第二MIMO模式。
需要说明的是,第一MIMO模式可以包括M出N入,M为发射天线数,N为接收天线数,M和N为正整数,且M和N可以相同。
还需要说明的是,第一设备可以事先确定(比如基于Wi-Fi协议)第二设备支持的至少一个MIMO模式,并基于第二设备支持的至少一个MIMO模式和第一设备支持的至少一个MIMO模式,确定第一设备和第二设备共同支持的至少一个第一MIMO模式。另外,在一些实施例中,至少一个第一MIMO模式可以不是第一设备基于第二设备支持的至少一个MIMO模式和第一设备支持的至少一个MIMO模式确定的,而是第一设备中预设的MIMO模式或者第一设备支持的MIMO模式,那么第一设备也可以在确定第一能力信息用于指示第一设备和第二设备支持调整最大MIMO模式的情况下,在预设的或者第一设备支持的至少一个第一MIMO模式中确定第二MIMO模式。
在一些实施例中,第一设备中可以存储有电池信息、能力信息、业务类型与传输参数的对应关系,该对应关系中包括至少一个电池信息、能力信息、至少一个业务类型以及至少一个传输参数。第一设备可以从该对应关系中,获取与第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息对应的第一传输参数。
在一些实施例中,第一设备可以将第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息,输入至训练好的机器学习模型,通过该机器学习模型得到第一传输参数。
可选地,所述第一能力信息用于指示所述第一设备和所述第二设备支持的至少一个第一带宽,所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数,包括:
所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型,从所述至少一个第一带宽中确定第二带宽。
可选地,所述第一能力信息用于指示所述第一设备和所述第二设备支持调整最大带宽,而不需要一一列举所支持的多个第一带宽;在所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数之前,所述方法还包括:
所述第一设备确定所述第一设备和所述第二设备共同支持的至少一个第一带宽;
所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数,包括:
所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型,从所述至少一个第一带宽中确定第二带宽。
需要说明的是,第一设备可以事先确定(比如基于Wi-Fi协议)第二设备支持的至少一个带宽模式,并基于第二设备支持的至少一个带宽和第一设备支持的至少一个带宽,确定第一设备和第二设备共同支持的至少一个第一带宽。另外,在一些实施例中,至少一个第一带宽可以不是第一设备基于第二设备支持的至少一个带宽和第一设备支持的至少一个带宽确定的,而是第一设备中预设的带宽或者第一设备支持的带宽, 那么第一设备也可以在确定第一能力信息用于指示第一设备和第二设备支持调整最大带宽的情况下,在预设的或者第一设备支持的至少一个第一带宽中确定第二带宽。
可选地,所述第一电池信息用于指示所述第一设备的电池容量、所述第一设备的电池剩余电量、所述第一设备的插电状态和所述第一设备的省电模式状态中的至少一个,所述第一设备的插电状态包括当前接入电源或未接入电源,所述第一设备的省电模式状态包括是否开启省电模式;所述第二电池信息用于指示所述第二设备的电池容量、所述第二设备的电池剩余电量、所述第二设备的插电状态和所述第二设备的省电模式状态中的至少一个,所述第二设备的插电状态包括当前接入电源或未接入电源,所述第二设备的省电模式状态包括是否开启省电模式。
可选地,所述第一设备与所述第二设备之间的连接类型为点到点(peer-to-peer,P2P),所述第一设备为组所有者(group owner,GO),所述第二设备为组客户端(group client,GC)。
可选地,所述第一能力信息用于指示所述第一设备和所述第二设备支持基于主动通知(notification of active,NoA)信令的数据传输调度,所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数,包括:
所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一NoA策略。
也即是,在P2P场景中,第一传输参数可以包括第一NoA策略、第二MIMO模式和第二带宽中的至少一个。
其中,第一NoA策略可以包括第一传输时段间隔和第一休眠时段。
需要说明的是,第一设备和第二设备对功耗越敏感,则第一传输参数所指示的传输方式的功耗可以越低。例如,第一设备和第二设备均未接入电源、电池容量和剩余电量越低,则第一NoA策略中的第一休眠时段的时长可以越长,第二MIMO模式中的N和M可以越低,第二带宽的数值可以越低。
在一些实施例中,若第一传输参数包括第一NoA策略,则第一设备和第二设备可以每间隔第一传输时段间隔开始进入休眠状态(即第一休眠时段),当第一休眠时段结束时,第一设备和第二设备可以进行唤醒状态,在该唤醒状态中,第一设备与第二设备进行数据传输,比如第一设备可以向第二设备发送数据。因此,第一设备和第二设备可以在双方支持的基础上,调节传输时段间隔和休眠时段,从而使得休眠的时机和时长,与至少一方的电源状态以及所传输数据的业务类型相匹配,既能够减少功耗浪费的问题,也减少了传输方式与业务类型不匹配导致的用户体验下降的问题。其中,当第一休眠时段的时长越长时,第一设备和第二设备所产生的功耗越低。
在一些实施例中,若第一传输参数包括第二MIMO模式,则第一设备和第二设备基于第二MIMO模式接收和发送数据。第一设备和第二设备可以在双方支持的基础上,调节天线的工作模式,从而使得该天线的工作模式与至少一方的电源状态以及所传输数据的业务类型相匹配,从而减少功耗浪费的问题。
在一些实施例中,若第一传输参数包括第二带宽,则第一设备和第二设备可以将第二带宽作为数据传输的最大带宽。第一设备和第二设备可以在双方支持的基础上, 调节传输带宽,从而使得该传输带宽,与至少一方的电源状态以及所传输数据的业务类型相匹配,从而减少功耗浪费的问题。
可选地,所述第一设备和所述第二设备为同一设备到设备(device-to-device,D2D)域中的设备,所述第一设备与所述第二设备之间的连接类型为D2D类型,所述第一设备为传输主设备,所述第二设备为传输从设备,所述传输主设备用于对所述传输主设备与所述传输从设备之间的数据传输过程进行控制。
可选地,所述第一能力信息用于指示所述第一设备和所述第二设备支持对时隙TS的调度,所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数,包括:
所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一TS策略。
也即是,在D2D场景中,第一传输参数可以包括第一TS策略、第二MIMO模式和第二带宽中的至少一个。
第一TS策略可以用于指示唤醒状态的TS和休眠状态的TS,进行数据传输的电子设备可以以TS为单位进行休眠或数据传输。在一些实施例中,第一TS策略可以通过位图(bitmap)的方式指示用于指示唤醒状态的TS和休眠状态的TS。
在一些实施例中,第一TS策略可以用于指示发现周期的长度,比如该发现周期所包括的TS总数目。
需要说明的是,一个发现周期(或称调度周期)可以包括发现窗(discovery window,DW)和业务时段,发现周期中前至少一个TS可以与该发现窗对应,从而用于时钟同步,之后的其他TS可以与业务时段对应,进行数据传输的电子设备可以在与该业务时段对应的休眠状态的TS可以进行休眠,在与该业务时段对应的唤醒状态的TS进行数据传输。且还需要说明的是,每个发现周期中用于进行时钟同步的TS的数目,可以由域主设备向域从设备通知得到,当然,域从设备也可以通过其他方式来确定每个发现周期中用于进行时钟同步的TS的数目,本申请实施例对确定每个发现周期中用于进行时钟同步的TS的数目的方式不做具体限定。
需要说明的是,若域主设备为第三设备而不是第一设备,且第一设备也不向其他电子设备传输数据,则第一设备也可以在第二TS中进入休眠状态。
其中,第一设备和第二设备可以基于第一TS策略,以TS为单位进行休眠,提高了对休眠的时机和时长的控制精度,从而能够进一步减少功耗。
可选地,所述第一设备为域从设备,所述D2D域中还包括作为域主设备的第三设备,所述方法还包括:
所述第一设备基于所述第一电池信息,确定第一同步周期;
所述第一设备基于所述第一同步周期,与所述第三设备进行时钟同步。
其中,第一同步周期可以为发现周期的整数倍。第一设备可以在与第一同步周期对应的发现周期中的发现窗内,与第三设备进行时钟同步。那么在与第一同步周期不对应的发现周期的DW中,第一设备可以在原先用于时钟同步的时间内进入休眠状态,从而降低功耗。
可选地,所述方法还包括:
所述第一设备向所述第三设备通知所述第一同步周期。
由于第一设备为域从设备,第三设备为域主设备,第三设备可能会在DW内,向第一设备发送控制指令,比如控制第一设备关闭电源等,如果第一设备在某个发现周期的DW期间处于休眠状态,则有可能无法接收到该控制指令,因此,第一设备可以将确定的第一同步周期通知给第三设备,以提高传输系统的稳定性。
可选地,还包括:
所述第一设备基于所述第一电池信息,确定第一测量周期;
所述第一设备基于所述第一测量周期,对与所述第二设备之间的连接的通信质量进行测量。
其中,第一设备可以在与第一测量周期对应的发现周期中的业务时段,测量与第二设备之间的连接的通信质量。那么在与第一测量周期不对应的业务时段内,第一设备可以不进行通信质量测量,原先用于测量的时间可以用于休眠,从而降低功耗。其中,第一测量周期和第二测量周期可以为发现周期的整数倍。
在一些实施例中,第一设备确定第一测量周期,并在与第一测量周期对应的发现周期中的业务时段,对第一设备与第二设备之间的连接的通信质量进行测量。在另一些实施例中,第二设备确定第二测量周期,并在与第一测量周期对应的发现周期中的业务时段,对第一设备与第二设备之间的连接的通信质量进行测量,并将测量结果通知给第一设备,相应的第一设备也可以接收该测量结果。
可选地,若所述第一业务类型为单向流业务,则所述第一设备基于所述第一传输参数与所述第二设备传输数据,包括:
所述第一设备获取待传输的多个第一数据包;
所述第一设备将所述多个第一数据包聚合为第二数据包;
所述第一设备基于所述第一传输参数,向所述第二设备发送所述第二数据包。
当第一业务类型为单向流业务时,第一设备可以每间隔第一时长,向第二设备传输一个第一数据包。其中,第一传输间隔可能比较短,第一设备和第二设备难以在第一传输间隔内进行休眠,因此第一设备可以将多个第一数据包进行聚合,得到较大的第二数据包,并向第二设备发送第二数据包。也即是,第一设备可以将多个第一数据包集中发送给第二设备,传输方式由每间隔第一时长发送一个第一数据包,变为每间隔第二时长发送一个第二数据包,原先发送该多个第一数据包所需的多个较短的第一时长,可以被聚合为一个较长的第二时长。第一设备和第二设备可以在第二时长中进行休眠,从而节省功耗。
第二方面,提供一种用于数据传输装置,通信装置用于执行上述第一方面的任一可能的实现方式中的方法。具体地,通信装置可以包括处理单元和收发单元。收发单元可以与外部进行通信,处理单元用于进行数据处理。收发单元还可以称为通信接口或通信单元。
该通信装置可以用于执行第一方面的任一可能的实现方式中第一设备所执行的动作,这时,该通信装置可以称为第一设备,收发单元用于执行第一方面的任一可能的实现方式中第一设备的收发相关的操作,处理单元用于执行第一方面任一可能的实现方式中第一设备的处理相关的操作。
第三方面,本申请实施例提供一种电子设备,包括:存储器和处理器,存储器用于存储计算机程序;处理器用于在调用计算机程序时执行上述第一方面中任一项所述的方法。
第四方面,本申请实施例提供一种芯片系统,所述芯片系统包括处理器,所述处理器与存储器耦合,所述处理器执行存储器中存储的计算机程序,以实现上述第一方面中任一项所述的方法。
其中,所述芯片系统可以为单个芯片,或者多个芯片组成的芯片模组。
第五方面,本申请实施例提供一种计算机可读存储介质,其上存储有计算机程序,计算机程序被处理器执行时实现上述第一方面中任一项所述的方法。
第六方面,本申请实施例提供一种计算机程序产品,当计算机程序产品在电子设备上运行时,使得电子设备执行上述第一方面中任一项所述的方法。
可以理解的是,上述第二方面至第六方面的有益效果可以参见上述第一方面中的相关描述,在此不再赘述。
附图说明
图1为本申请实施例所提供的一种电子设备的结构示意图;
图2为本申请实施例所提供一种数据传输系统的示意图;
图3为本申请实施例提供的一种传输数据的时序图;
图4为本申请实施例提供的另一种传输数据的时序图;
图5为本申请实施例所提供另一种数据传输系统的示意图;
图6为本申请实施例提供的一种发现周期的示意图;
图7为本申请实施例提供的一种数据传输方法的流程图;
图8为本申请实施例提供的一种MIMO模式的示意图;
图9为本申请实施例提供的另一种MIMO模式的示意图;
图10为本申请实施例提供的一种传输视频帧的时序图;
图11为本申请实施例提供的另一种数据传输方法的流程图;
图12为本申请实施例提供的一种确定同步周期或测量周期的方法的流程图;
图13本申请实施例提供的另一种发现周期的时序图;
图14为本申请实施例所提供的一种数据传输装置的结构示意图;
图15为本申请实施例所提供的一种电子设备的结构示意图。
具体实施方式
本申请实施例提供的基于Wi-Fi的数据传输方法可以应用于手机、平板电脑、可穿戴设备、车载设备、增强现实(augmented reality,AR)/虚拟现实(virtual reality,VR)设备、笔记本电脑、超级移动个人计算机(ultra-mobile personal computer,UMPC)、上网本、个人数字助理(personal digital assistant,PDA)、网关等电子设备上,本申请实施例对电子设备的具体类型不作任何限制。
Wi-Fi是一种基于电气与电子工程师协会(institute of electrical and electronics engineers,IEEE)802.11标准的无线局域网技术,通常也可以被称为无线保真(wireless fidelity,Wi-Fi)。
图1是本申请实施例提供的一例电子设备100的结构示意图。电子设备100可以 包括处理器110、存储器120和通信模块130等。
其中,处理器110可以包括一个或多个处理单元,存储器120用于存储程序代码和数据。在本申请实施例中,处理器110可执行存储器120存储的计算机执行指令,用于对电子设备100的动作进行控制管理。
通信模块130可以包括Wi-Fi芯片,从而用于电子设备100和其他外部电子设备之间的通信等。通信模块130经由天线1接收电磁波,将电磁波信号调频以及滤波处理,将处理后的信号发送到处理器110;从处理器110接收待发送的信号,对其进行调频,放大,经天线1转为电磁波辐射出去。在一些实施例中,通信模块130可以和天线1耦合。
其中,天线1的数目可以是一个或多个,每个天线1可以覆盖单个或多个通信频带。通信模块130可以控制用于接收或发送信号的天线1。
在一些实施例中,通信模块130可以包括发送端131和接收端132。通信模块130可以通过发送端131发送电磁波信号,通过接收端132接收电磁信号。在一些实施例中,通信模块130可以通过MIMO技术,控制与发送端131或接收端132联系的天线1的数目。
其中,MIMO技术是指在发送端131和接收端132分别使用多个天线,使信号通过发送端131和接收端132的多个天线传送和接收,从而改善通信质量。它能充分利用空间资源,通过多个天线实现多发多收,在不增加频谱资源和天线发射功率的情况下,可以成倍的提高系统信道容量。MIMO技术可以包括空间分集和空间复用。空间分集是指利用多根天线将具有相同信息的信号通过不同的路径发送出去,同时在接收端获得同一个数据符号的多个独立衰落的信号,从而获得分集提高的接收可靠性。空间复用是将要传送的数据分成几个数据流,然后在不同的天线上进行传输,从而提高系统的传输速率。
在一些实施例中,通信模块130可以包括音频器件、射频电路、蓝牙芯片、近距离无线通讯技术(near-field communication,NFC)模块等,可以通过多种不同的方式实现电子设备100与其他电子设备之间的交互。
在一些实施例中,电子设备100还可以通过有线连接的方式和其他电子设备通信,通信模块130可以包括接口等,例如USB接口,USB接口可以是符合USB标准规范的接口,具体可以是Mini USB接口,Micro USB接口,USB Type C接口等。USB接口可以用于连接充电器为电子设备100充电,也可以用于电子设备100与外围设备之间传输数据。也可以用于连接耳机,通过耳机播放音频。该接口还可以用于连接其他电子设备,例如AR设备等。
在一些实施例中,通信模块130还可以用于电子设备100的各个内部模块之间的通信。
可选地,电子设备100还可以包括显示屏140,显示屏140可以显示人机交互界面中的图像或视频等。
可选地,电子设备100还可以包括外设设备150,例如鼠标、键盘、扬声器、麦克风等。
应理解,除了图1中列举的各种部件或者模块之外,本申请实施例对电子设备100 的结构不做具体限定。在本申请另一些实施例中,电子设备100还可以包括比图示更多或更少的部件,或者组合某些部件,或者拆分某些部件,或者不同的部件布置。图示的部件可以以硬件,软件或软件和硬件的组合实现。
为了便于理解本申请施例中的技术方案,下面首先对本申请实施例的应用场景予以介绍。
请参照图2,为本申请实施例所提供的一种数据传输系统的示意图。该系统包括设备A 210、设备B 220和设备C 230,其中,设备A 210与设备B 220之间以及设备A 210与设备C 230之间的连接均为P2P类型的连接,设备A 210的角色为GO,设备B 220和设备C 230的角色为GC。
设备A 210可以广播NoA信令,设备B 220或设备C 230可以接收该NoA信令,并基于该NoA信令与设备A 210进行数据传输。
NoA信令可以用于指示传输数据的时机和休眠的时机。NoA信令可以包括传输开始时间、传输时段数目、传输时段间隔以及休眠时段。其中,传输开始时间可以用于指示即将开始进行的数据传输的时刻;传输时段数目可以用于指示进行数据传输的传输时段的数目;传输时段间隔可以用于指示相邻两个传输时段之间的间隔的时长,或者也可以理解为传输周期;休眠时段可以用于指示每个传输时段内可以进行休眠的时间段,每个传输时段中可以包括一个休眠时段,在该休眠时段内,GO和GC可以关闭射频收发通道以及物理层和介质访问控制(media access control,MAC)层的协议栈,从而进入休眠状态以降低功耗,在该传输时段剩余的时段内,GO和GC可以进入唤醒状态并进行侦听和数据传输。
以设备A 210与设备B 220之间数据传输为例。请参照图3,设备A 210向设备B 220广播了NoA信令1,通过NoA信令1指示传输开始时刻为时刻1,传输时段数目为2,传输时段间隔为33ms(毫秒),休眠时段为20ms。设备A 210在通过NoA信令1向设备B 220通知调度策略之后,设备A 210和设备B 220可以确定在时刻1开始进入第一个传输时段,在第一个传输时段的前20ms,设备A 210和设备B 220都可以进行休眠以降低功耗,之后在当前传输时段剩余的13ms内进行数据传输,之后进入第二个传输时段。当这两个传输时段结束时,设备A 210又向设备B 220广播NoA信令2,通过NoA信令2指示传输开始时间为时刻2,传输时段数目为3,传输时段间隔为33ms,休眠时段为20ms。设备A 210在通过NoA信令1向设备B 220通知调度策略之后,进行3个传输时段的数据传输,之后,设备A 210可以继续向设备B 230广播NoA信令3来进行后续的数据传输。
在该系统中,由于设备A 210是通过广播将NoA信令通知给所有GC,包括设备B 220和设备C 230,因此,设备A 210向设备B 220和设备C 230传输数据所使用的传输参数是相同的,只有在设备B 220和设备C 230的休眠时段完全同步时,设备A 210才能够休眠。但在实际应用中,设备B 220和设备C 230的休眠时段可能难以相同。比如如图4所示,设备B 220正在播放在线视频,设备A 210与设备B 220之间传输的数据包括视频帧,对应的业务类型为视频业务,传输模式为每间隔相似的时长传输一帧视频帧,而设备C 230正在展示网页,设备A 210与设备C 230之间传输的数据为网页数据,对应的业务类型为网页业务,传输模式为间隔不定且每次传输的数据量 大小不定。因此,设备A 210难以进入休眠状态来节省功耗,而如果设备A 210强行进行休眠状态,则可能会导致不能及时向设备B 220或设备C 230发送数据,进而导致设备B 220出现视频卡顿或设备C 230出现响应超时等问题,用户体现下降。
需要说明的是,在如图2所示的系统中,可以包括更多或更少的GC,且可以理解的是,虽然在图2中,设备A 210为手机,设备B 220为智能电视,设备C 230为平板电脑,但在实际应用中,设备A 210、设备B 220或设备C 230也可以是其他如图1所示的设置有Wi-Fi芯片的电子设备,本申请实施例不对GO或GC的设备类型进行限定。
请参照图5,为本申请实施例所提供的一种数据传输系统的示意图。该系统也可以被称为一个D2D域,包括设备D 510、设备E 520、设备F 530和设备G 540,其中,设备D 510、设备E 520、设备F 530以及设备G 540两两之间,都可以通过D2D类型的连接进行连接。
设备G 540为域主设备(或称域主节点),设备D 510、设备E 520和设备F 530为域从设备(或称域从节点)。与如图2所示的系统相比,在图5所示的系统中,设备D 510、设备E 520和设备F 530和设备G 540等中的任意两个电子设备之间都可以进行数据传输,而不必受限于GC或GO等角色限制。例如,设备D 510为手机,设备E520为家用监控设备,设备F 530为平板电脑,家用监控设备可以将监控画面单向投屏至手机,手机也可以与平板电脑实现双向多屏协同。
设备G 540可以周期性地广播同步帧,如图6所示,该同步帧中携带时钟同步信息,相应的,所有域从设备,包括设备D 510、设备E 520和设备F 530,可以定期监听该同步帧,并基于该时钟同步信息与设备D 510进行时钟同步。设备G 540还可以广播发现帧,该发现帧中携带该系统的网络参数,相应的,设备D 510、设备E 520和设备F 530可以接收该发现帧,并基于该网络参数与设备G 540建立D2D类型的连接。
当域从设备与设备G 540完成时钟同步时,可以获取到设备G 540的DW以及发现周期(或称发现间隔、调度周期)。在每个发现周期的DW内,域从设备可以接收设备G 540的同步帧并基于该同步帧进行时钟同步,还可以接收其他域从设备的业务发现帧,并基于该业务发现帧中携带的设备标识等设备身份信息,与该其他域从设备建立D2D连接。每个发现周期还可以包括业务时段,在该业务时段内,该系统中的任意两个电子设备(如设备D 510和设备E 520)可以进行数据传输,其中,进行数据传输的两个电子设备中一个为传输主设备,另一个为传输从设备,传输主设备可以对数据传输过程进行控制,比如控制切换信道等。另外,传输从设备或传输主设备还可以在该业务时段内对数据传输的连接的通信质量进行测量,以使得传输主设备可以基于测量结果执行信道切换等抗干扰操作。
由于在图5所示的系统中,所有域从设备都必须在设备G 540的每个发现周期来与设备G 540进行时钟同步以及通信质量测量,从而可能会导致功耗浪费。
需要说明的是,在如图5所示的系统中,可以包括更多或更少的域从设备,且可以理解的是,虽然在图5中,设备D 510为手机,设备E 520为家用监控设备,设备F 530为平板电脑,设备G 540为路由器,但在实际应用中,设备D 510、设备E 520或 设备F 530也可以是其他如图1所示的设置有Wi-Fi芯片的电子设备,本申请实施例不对域主设备和域从设备的设备类型进行限定。
另外,无论是如图2所示的系统还是如图5所示的系统,在数据传输过程中,进行数据传输的两个电子设备的MIMO模式以及最大带宽也都是固定的,从而也可能导致功耗浪费。比如当传输的数据量较小时,可能实际传输该数据的时长低于分配的传输时长,但进行传输的电子设备并不能进入休眠状态。例如,当传输的数据为1080P*360帧每秒(frame per second,FPS)的音视频时,每间隔33.3ms传输一帧数据,如果传输的带宽为80MHz(兆赫兹),那么实际上80us(微秒)就可以传输完成一帧数据,远小于33.3ms的时间间隔,但传输该数据的两个电子设备在这33.3ms剩余的时间内仍然不会降低功耗。
可以看出,在上述图2和图5所示的系统中,当两个电子设备进行数据传输时,是采用固定的传输方式进行传输,而并未考虑到电子设备的设备能力或者所传输数据对应的业务类型对传输过程的影响,从而可能会导致功耗浪费,不利于电池能力较差的设备。比如,进行数据传输的电子设备支持更高效率的传输,但在实际传输过程中仍然使用了较低效率的传输方式,从而导致电子设备进行休眠的时间减少;或者,进行数据传输的电子设备当前剩余电量较低,而在实际传输过程却使用了较高功耗的方式进行传输,可能导致该电子设备更早地关机。
为解决上述至少部分技术问题,本申请实施例提供了一种基于Wi-Fi的数据传输方法。在本申请实施例中,第一设备可以与第二设备协商,从而得到第一设备的第一电池信息和第二设备的第二电池信息中的至少一个,以及第一设备和第二设备共同支持的第一能力信息、待传输的数据对应的第一业务类型。基于第一电池信息和第二设备的第二电池信息中的至少一个、第一能力信息和第一业务类型,确定第一传输参数,也即是在第一设备和第二设备共同支持的设备能力范围内,选择与待传输数据的第一业务类型以及第一设备和第二设备中至少一个的电池状态匹配的传输方式。那么通过该传输方式进行数据传输,便能够降低第一设备和第二设备中至少一个的功耗。
下面以具体地实施例对本申请的技术方案进行详细说明。下面这几个具体的实施例可以相互结合,对于相同或相似的概念或过程可能在某些实施例不再赘述。
请参照图7,为本申请实施例所提供的一种基于Wi-Fi的数据传输方法的流程图。该方法可以应用于如图2所示的系统,第一设备可以为GO,如设备A 210,第二设备可以为GC,如设备B 220或设备C 230。需要说明的是,该方法并不以图7以及以下所述的具体顺序为限制,应当理解,在其它实施例中,该方法其中部分步骤的顺序可以根据实际需要相互交换,或者其中的部分步骤也可以省略或删除。该方法包括如下步骤:
S701,第一设备与第二设备建立P2P类型的连接。
S702,第一设备与第二设备进行设备能力协商,得到第一电池信息和第二电池信息中的至少一个以及第一能力信息。
其中,第一电池信息可以用于指示第一设备的电池状态;第二电池信息用于指示第二设备的电池状态;第一能力信息可以为第一设备和第二设备共同支持的能力信息,从而能够指示第一设备和第二设备共同具有的设备能力。通过设备能力协商,第一设 备和第二设备可以确认双方的电池状态以及是否支持对数据传输的方式进行调整,比如是否支持以较低功耗的方式进行传输。
在一些实施例中,第一电池信息可以用于指示第一设备的电池容量、第一设备的电池剩余电量、第一设备的插电状态和第一设备的省电模式状态中的至少一个,第一设备的插电状态包括当前接入电源或未接入电源,第一设备的省电模式状态包括是否开启省电模式;第二电池信息可以用于指示第二设备的电池容量、第二设备的电池剩余电量、第二设备的插电状态和第二设备的省电模式状态中的至少一个,第二设备的插电状态包括当前接入电源或未接入电源,第二设备的省电模式状态包括是否开启省电模式。
例如,一种第一电池信息可以如下表1所示。电量状态的取值范围包括0、1和2,其中,0表示第一设备当前是电池供电且电量较低;1表示第一设备当前是电池供电且电量较高;2表示第一设备当前处于插电状态。省电模式的取值范围包括0和1,其中,0表示第一设备未开启省电模式,1表示第一设备开启了省电模式。
表1
Figure PCTCN2022113610-appb-000001
需要说明的是,本申请实施例仅以上述表1对第一电池信息指示第一设备的电池容量、第一设备的电池剩余电量、第一设备的插电状态和第一设备的省电模式状态中的至少一个等电池状态的方式进行说明,而并不对第一电池信息指示该电池状态的方式构成限定,在实际应用中,第一电池信息可以通过更多或更少的参数来指示第一设备的电池状态。
在一些实施例中,第一能力信息可以用于指示第一设备和第二设备支持基于NoA信令的数据传输调度。
在一些实施例中,第一能力信息可以用于指示第一设备和第二设备支持的至少一个第一MIMO模式。或者,在另一些实施例中,第一设备可以事先确定(比如基于Wi-Fi协议)第二设备支持的至少一个MIMO模式,并基于第二设备支持的至少一个MIMO模式和第一设备支持的至少一个MIMO模式,确定第一设备和第二设备共同支持的至少一个第一MIMO模式,第一能力信息可以用于指示第一设备和第二设备是否支持调整最大MIMO模式,而不需要一一列举指示所支持的至少一个第一MIMO模式。或者,在另一些实施例中,至少一个第一MIMO模式可以不是第一设备基于第二设备支持的至少一个MIMO模式和第一设备支持的至少一个MIMO模式确定的,而是第一设备中预设的MIMO模式或者第一设备支持的MIMO模式,那么第一设备也可以在确定第一能力信息用于指示第一设备和第二设备支持调整最大MIMO模式的情况下,在预设的或者第一设备支持的至少一个第一MIMO模式中确定第二MIMO模式。
需要说明的是,第一MIMO模式可以包括M出N入,M为发射天线数,N为接收天线数,M和N为正整数,且M和N可以相同。
在一些实施例中,第一能力信息可以用于指示第一设备和第二设备支持的至少一个第一带宽。或者,在另一些实施例中的,第一设备可以事先确定(比如基于Wi-Fi协议)第二设备支持的至少一个MIMO模式,并基于第二设备支持的至少一个MIMO模式和第一设备支持的至少一个MIMO模式,确定第一设备和第二设备共同支持的至少一个第一MIMO模式,第一能力信息可以用于指示第一设备和第二设备是否支持调整最大带宽,而不需要一一列举所支持的至少一个第一带宽。或者,在另一些实施例中,至少一个第一带宽可以不是第一设备基于第二设备支持的至少一个带宽和第一设备支持的至少一个带宽确定的,而是第一设备中预设的带宽或者第一设备支持的带宽,那么第一设备也可以在确定第一能力信息用于指示第一设备和第二设备支持调整最大带宽的情况下,在预设的或者第一设备支持的至少一个第一带宽中确定第二带宽。
例如,一种第一能力信息可以如下表2所示。自适应MIMO的取值范围包括0和1,其中,0表示第一设备和第二设备中的至少一个不支持调整最大MIMO模式,1表示第一设备和第二设备支持调整最大MIMO模式。自适应带宽的取值范围包括0和1,其中,0表示第一设备和第二设备中的至少一个不支持调整最大带宽,1表示第一设备和第二设备支持调整最大带宽。
表2
Figure PCTCN2022113610-appb-000002
需要说明的是,本申请实施例仅以上述表2对第一能力信息指示设备能力的方式进行说明,而并不对第一能力信息指示设备能力的方式构成限定,在实际应用中,第一能力信息可以通过更多或更少的参数来指示设备能力。
在一些实施例中,第一设备与第二设备进行设备能力协商可以包括,第二设备向第一设备发送第二设备的第二电池信息和第二能力信息,第一设备也向第二设备发送第一设备的第一电池信息和第三能力信息,第一设备和第二设备即可以得到第一电池信息和第二电池信息,第一设备也可以基于第二能力信息和第三能力信息,确定第一设备和第二设备共同支持的第一能力信息。其中,第二能力信息可以用于指示第二设备所支持的设备能力;第三能力信息可以用于指示第一设备所支持的设备能力。
需要说明的是,第二能力信息和第三能力信息所包括的参数类型,可以与第一能力信息所包括的参数类型相同,以便于第一设备根据第一能力信息和第三能力信息确定第一能力信息。
例如,第二能力信息指示第二设备支持基于NoA信令的数据传输调度,而第三能力信息指示第一设备也支持基于NoA信令的数据传输调度,则第一能力信息可以用于指示第一设备和第二设备支持基于NoA信令的数据传输调度。
又例如,第二能力信息指示第二设备支持多个第三MIMO模式包括2进2出和1进1出,第三能力信息指示第一设备支持的多个第四MIMO模式包括4进4出、2进2出和1进1出。那么第一设备可以确定第一能力信息所指示的至少一个第一MIMO 模式包括2进2出和1进1出。或者,第二能力信息指示第二设备支持调整最大MIMO模式,第三能力信息指示第一设备支持调整最大MIMO模式,则第一能力信息可以指示第一设备和第二设备均支持调整最大MIMO模式。
又例如,第二能力信息指示第二设备支持的多个第三带宽包括40MHz和80MHz,第三能力信息指示第一设备支持的多个第四带宽包括40MHz、80MHz和160MHz,则第一设备可以确定第一能力信息所指示的至少一个第一带宽包括40MHz和80MHz。
在一些实施例中,第一设备与第二设备进行设备能力协商可以包括,第一设备向第二设备发送第一获取请求,第二设备基于第一获取请求,向第一设备发送第二电池信息和第二能力信息,第一设备接收第二电池信息和第二能力信息,并基于第二能力信息和第三能力信息,确定第一能力信息。即第一设备不再向第二设备发送第一电池信息和第三能力信息。
需要说明的是,第一设备和第二设备也可以通过其他方式来进行设备能力协商,本申请实施例对此设备能力协商的方式不做具体限定。
S703,第一设备与第二设备进行业务类型协商,得到第一业务类型。
由于第一设备和第二设备所进行的业务可能不同,其所传输的数据对应的业务类型可能会有差异,而传输不同业务类型的数据时,对传输方式的需求也不同,比如在视频业务中,可以每间隔相似的时长传输一帧视频帧;而在网页业务中,间隔不定且每次传输的数据量大小不定。如果需要传输的数据量比较大或者比较频繁,则所产生的功耗也会比较大;而如果需要传输的数据量比较小或者只需要偶尔传输,那么第一设备或第二设备便可以在空闲时间进行休眠的方式来减少功耗。因此,为了后续的数据传输方式与传输数据的业务类型相匹配,第一设备与第二设备可以进行业务类型协商。
在一些实施例中,第一设备可以向第二设备发送第二获取请求,第二设备基于第二获取请求向第一设备反馈第一业务类型。当然,在实际应用中,第一设备和第二设备也可以通过其他方式来进行业务类型协商,本申请实施例对此业务类型协商的方式不做具体限定。
在一些实施例中,业务类型可以按照业务的功能划分,比如视频业务或网页业务。在另一些实施例中,业务类型可以按照业务的数据流向来划分,比如单向流业务或双向流业务。需要说明的是,业务类型的划分方式可以由相关技术人员事先确定,在实际应用中,业务类型也可以是按照待传输的业务的其他方面的特征来划分,本申请实施例不对业务类型的划分方式进行具体限定。
例如,第一业务类型的取值范围可以包括0、1和2,其中,0表示网页浏览,1表示音频或视频投屏,2表示实时控制。
S704,第一设备基于第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息,确定第一传输参数。
由于第一能力信息可以用于指示第一设备和第二设备共同支持的设备能力,那么基于第一能力信息,第一设备和第二设备之间可能会实现多个的传输方式,而这些传输方式中可能某个传输方式更适于传输第一业务类型的数据,某个传输方式的功耗更低,那么第一设备基于第一电池信息和第二电池信息中的至少一个以及第一业务类型 和第一能力信息,确定第一传输参数,即是在第一设备和第二设备共同支持的设备能力范围内,选择与待传输数据的第一业务类型以及第一设备和第二设备中至少一个的电池状态匹配的传输方式。
在一些实施例中,第一设备中可以存储有电池信息、能力信息、业务类型与传输参数的对应关系,该对应关系中包括至少一个电池信息、能力信息、至少一个业务类型以及至少一个传输参数。第一设备可以从该对应关系中,获取与第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息对应的第一传输参数。
在一些实施例中,第一设备可以将第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息,输入至训练好的机器学习模型,通过该机器学习模型得到第一传输参数。
当然,在实际应用中,第一设备还可以通过其他方式来基于第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息,确定第一传输参数,本申请实施例对基于第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息,确定第一传输参数的具体方式不做限定。
在一些实施例中,第一传输参数可以包括第一NoA策略、第二MIMO模式和第二带宽中的至少一个。在一些实施例中,第一能力信息指示了第一设备和第二设备支持基于NoA信令的数据传输调度,那么第一设备可以基于第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息,确定第一主动通知NoA策略。在一些实施例中,第一能力信息指示了第一设备和第二设备支持的至少一个第一MIMO模式,第一设备可以基于第一电池信息和第二电池信息中的至少一个以及第一业务类型,从至少一个第一MIMO模式中确定第二MIMO模式;或者,第一能力信息指示了第一设备和第二设备支持调整最大MIMO模式,第一设备可以从至少一个第一MIMO模式中确定第二MIMO模式。在一些实施例中,第一能力信息指示了第一设备和第二设备支持的至少一个第一带宽,第一设备可以基于第一电池信息和第二电池信息中的至少一个以及第一业务类型,从至少一个第一带宽中确定第二带宽;或者,第一能力信息指示了第一设备和第二设备支持调整最大带宽,第一设备可以从至少一个第一带宽中确定第二带宽。
其中,第一NoA策略可以包括第一传输时段间隔和第一休眠时段。
需要说明的是,第一设备和第二设备对功耗越敏感,则第一传输参数所指示的传输方式的功耗可以越低。例如,第一设备和第二设备均未接入电源、电池容量和剩余电量越低,则第一NoA策略中的第一休眠时段的时长可以越长,第二MIMO模式中的N和M可以越低,第二带宽的数值可以越低。
例如,第一设备确定第二设备的第二电池信息包括:省电模式:1,电量状态:0,即第二设备当前开启了省电状态,未接入电源且电量较低;确定第一能力信息包括:自适应MIMO:1,自适应带宽:1,即第一设备和第二设备均支调整最大MIMO模式和最大带宽;确定第一业务类型为0,即为网页浏览。第一设备确定第二MIMO模式为1*1(即1进1出),第二带宽为20MHz,第一NoA策略包括的第一传输时段间隔为200ms,第一休眠时段为100ms。或者,第二电池信息和第一能力信息不变,但第一业务类型为1,即音频或视频投屏,则第一设备确定第二MIMO模式为1*1,第二 带宽为40MHz,第一NoA策略包括的第一传输时段间隔为33ms,第一休眠时段为10ms。或者,第二电池信息和第一能力信息不变,但第一业务类型为2,即音频或视频投屏,则第一设备确定第二MIMO模式为2*2(即2进2出),第二带宽为40MHz,不确定第一NoA策略,即禁用NoA调度。可以看出,第一设备可以通过第二电池信息、第一能力信息和第一业务类型,确定相匹配的第一传输参数,当第二电池信息、第一能力信息和第一业务类型中的至少一个(如第一业务类型)不同时,所确定的第一传输参数也不同,与双方至少一个的电池状态以及所传输数据的业务类型相匹配,既能够减少功耗浪费的问题,也减少了传输方式与业务类型不匹配导致的用户体验下降的问题。
S705,第一设备向第二设备通知第一传输参数。
其中,第一传输参数可以包括第一NoA策略、第二MIMO模式和第二带宽中的至少一个。
在一些实施例中,第一设备可以向第二设备发送第一NoA信令,第一NoA信令中携带第一NoA策略。
在一些实施例中,当第二设备获取到第一传输参数时,可以向第一设备发送相应的应答,以使得第一设备确定第二设备获取到了第一传输参数。
S706,第一设备基于第一传输参数,与第二设备进行数据传输。
由于第一传输参数是第一设备在第一设备和第二设备共同支持的设备能力范围内,选择与待传输数据的第一业务类型以及第一设备和第二设备中至少一个的电池状态匹配的传输方式,因此第一设备基于第一传输参数与第二设备进行数据传输,即能够使得第一设备和第二设备中的至少一个降低功耗。
在一些实施例中,若第一传输参数包括第一NoA策略,则第一设备和第二设备可以每间隔第一传输时段间隔开始进入休眠状态(即第一休眠时段),当第一休眠时段结束时,第一设备和第二设备可以进行唤醒状态,在该唤醒状态中,第一设备与第二设备进行数据传输,比如第一设备可以向第二设备发送数据。因此,第一设备和第二设备可以在双方支持的基础上,调节传输时段间隔和休眠时段,从而使得休眠的时机和时长,与至少一方的电源状态以及所传输数据的业务类型相匹配,既能够减少功耗浪费的问题,也减少了传输方式与业务类型不匹配导致的用户体验下降的问题。其中,当第一休眠时段的时长越长时,第一设备和第二设备所产生的功耗越低。
在一些实施例中,若第一传输参数包括第二MIMO模式,则第一设备和第二设备基于第二MIMO模式接收和发送数据,比如将第二MIMO模式作为最大MIMO模式。第一设备和第二设备可以在双方支持的基础上,调节天线的工作模式,从而使得该天线的工作模式与至少一方的电源状态以及所传输数据的业务类型相匹配,从而减少功耗浪费的问题。其中,当第二MIMO模式所指示的用于收发数据的天线越少,第一设备和第二设备所产生的功耗越低。
例如,第一设备和第二设备支持如图8所示的2进2出模式和如图9所示的1进1出模式。2进2出模式为通过2个天线发送或接收数据,1进1出模式为通过1个天线发送或接收数据。2进2出模式所产生的功耗高于1进1出模式所产生的功耗,但2进2出模式传输数据的效率也高于1进1出模式。如果第一业务类型对传输效率 的要求较低,那么第一设备和第二设备可以通过1进1出模式进行数据传输,从而降低功耗;而如果第一业务类型对传输效率的要求较高,那么第一设备和第二设备可以通过2进2出模式进行数据传输,从而保证传输效率。
在一些实施例中,若第一传输参数包括第二带宽,则第一设备和第二设备可以将第二带宽作为数据传输的最大带宽。第一设备和第二设备可以在双方支持的基础上,调节传输带宽,从而使得该传输带宽,与至少一方的电源状态以及所传输数据的业务类型相匹配,从而减少功耗浪费的问题。其中,当第二带宽越小,所产生的功耗越低。
在一些实施例中,若第一业务类型为单向流业务,则第一设备可以获取待传输的多个第一数据包,将该多个第一数据包聚合为第二数据包,基于第一传输参数向第二设备发送第二数据包。
当第一业务类型为单向流业务时,第一设备可以每间隔第一时长,向第二设备传输一个第一数据包。其中,第一传输间隔可能比较短,第一设备和第二设备难以在第一传输间隔内进行休眠,因此第一设备可以将多个第一数据包进行聚合,得到较大的第二数据包,并向第二设备发送第二数据包。也即是,第一设备可以将多个第一数据包集中发送给第二设备,传输方式由每间隔第一时长发送一个第一数据包,变为每间隔第二时长发送一个第二数据包,原先发送该多个第一数据包所需的多个较短的第一时长,可以被聚合为一个较长的第二时长。第一设备和第二设备可以在第二时长中进行休眠,从而节省功耗。
需要说明的是,第二数据包所包括的第一数据包的数目,即聚合第一数据包的数目,可以为2、3、4等,也可以为其他数值,本申请实施例不对该数目进行限定。
例如,如图10所示,第一设备向第二设备投屏的过程中,所传输的数据为视频帧,第一设备通过应用程序获取图像并进行编码,每16.7ms可以产生一帧视频帧,其中,第一设备生成第n个视频帧的时刻为t 1+16.7*(n-1)。如果是单帧传输,则第一设备每间隔16.7ms向第二设备发送一帧视频帧,第二设备每16.7ms接收该视频帧并对该视频帧进行解码和显示。其中,第一时长为16.7ms,该时长较短,第一设备和第二设备难以在该时长内进行休眠。因此,第一设备可以将2个视频帧进行聚合并传输,传输视频帧的间隔的第二时长变为为33.4ms,其中,第一设备传输第n帧和第n+1帧视频帧的时刻为t 1+16.7*(n-1)+d n,d n为第一设备发送第n和n+1个视频帧时的时延。第二设备每间隔33.4ms接收2个视频帧并将该2帧视频帧缓存在视频缓冲器中,但仍然按照16.7ms的周期从该视频缓冲器获取各帧图像进行解码并显示,其中,第二设备显示第n帧视频帧的时刻为t 1+d 1+Δ+16.7*(n-1),Δ为传输时长。对比可知,第二时长比第一时长长,第一设备和第二设备可以在这33.4ms中进行休眠,从而节省功耗。
可以理解的是,第一设备和第二设备在某一次执行S701建立连接之后,第一设备和第二设备的设备能力、电源状态以及所传输的数据的业务类型,也可能发生变化,相应的,第一设备和第二设备再次执行与S702-S706中的至少部分步骤相似或相同的步骤,从而获取新的能力信息、新的电池信息和新的业务类型中的至少一个,重新确定第二传输参数,并按照新确定的第二传输参数进行数据传输。也即是,第一设备和第二设备并不需要在每次执行本申请实施例所提供的数据传输方法时都执行S701。
例如,在S706之后,第一设备和第二设备所传输的数据对应的业务类型变更为第 二业务类型,则第一设备和第二设备可以基于第一电池信息和第二电池信息中的至少一个、第一能力信息和第二业务类型,确定第二传输参数,并基于第二传输参数传输数据。
在本申请实施例中,第一设备可以与第二设备协商,从而得到第一设备的第一电池信息和第二设备的第二电池信息中的至少一个,以及第一设备和第二设备共同支持的第一能力信息、待传输的数据对应的第一业务类型。基于第一电池信息和第二设备的第二电池信息中的至少一个、第一能力信息和第一业务类型,确定第一传输参数,也即是在第一设备和第二设备共同支持的设备能力范围内,选择与待传输数据的第一业务类型以及第一设备和第二设备中至少一个的电池状态匹配的传输方式。那么通过该传输方式进行数据传输,便能够降低第一设备和第二设备中至少一个的功耗。其中,第一传输参数包括第一NoA策略,第一设备和第二设备可以每间隔第一传输时段间隔开始进入休眠状态(即第一休眠时段),当第一休眠时段结束时,第一设备和第二设备可以进行唤醒状态,在该唤醒状态中,第一设备与第二设备进行数据传输。因此,第一设备和第二设备可以在双方支持的基础上,调节传输时段间隔和休眠时段,从而使得休眠的时机和时长,与双方至少一个的电池状态以及所传输数据的业务类型相匹配,既能够减少功耗浪费的问题,也减少了传输方式与业务类型不匹配导致的用户体验下降的问题。且当第二设备不同时,第一设备和第二设备所协商的第一业务类型可以不同,相应的,第一传输参数也可以不同,那么对于不同的第二设备,第一设备都可以按照与该第二设备对应的第一传输参数进行数据传输,包括按照与各第二设备对应的第一NoA策略进行休眠。例如图4中,若第一设备为设备A 210,第二设备包括设备B 220和设备C 230中,则设备A 210在与设备B 220进行数据传输时,第一传输参数中的第一NoA策略可以是与设备A 210和设备B 220协商的第一业务类型对应的,设备A 210在与设备C 230进行数据传输时,第一传输参数中的第一NoA策略可以是与设备A 210和设备C 230协商的第一业务类型对应的,因此设备A 210无论在与设备B 220还是设备C 230进行数据传输过程中,都可以进行休眠,避免了因为采用统一的NoA策略而导致的不能休眠的问题。
请参照图11,为本申请实施例所提供的一种基于Wi-Fi的数据传输方法的流程图。该方法可以应用于如图5所示的系统,第一设备可以为传输主设备,如设备G 540,第二设备和第四设备可以为传输从设备,如设备D 510和设备E 520。需要说明的是,当第一设备为传输主设备时,第一设备也可以作为第一设备所在的D2D域的域主设备,或者,第一设备可以不是域主设备,域主设备该D2D域中的其他设备,如第三设备。还需要说明的是,该方法并不以图11以及以下所述的具体顺序为限制,应当理解,在其它实施例中,该方法其中部分步骤的顺序可以根据实际需要相互交换,或者其中的部分步骤也可以省略或删除。该方法包括如下步骤:
S1101,第一设备与第二设备建立D2D类型的连接。
其中,若第一设备是域主设备,则第二设备可以通过第一设备广播的同步帧发现作为域主设备的第一设备,并与第一设备建立D2D类型的连接;若第一设备不是域主设备,则第一设备和第二设备可以先发现作为域主设备的第三设备,然后在第三设备的DW互相发现,进而建立D2D类型的连接。
在一些实施例中,若第一设备和第二设备对功耗比较敏感,比如电池容量较小或者未接入电源,则第一设备和第二设备可以通过蓝牙进行设备发现、认证并建立蓝牙连接,然后基于该蓝牙连接协商建立D2D类型的连接的相关信息,比如信道号和秘钥等,然后基于该相关信息建立D2D类型的连接。
当然,在实际应用中,第一设备和第二设备也可以通过其他方式来建立D2D类型的连接,本申请实施例对第一设备和第二设备建立D2D类型的连接的方式不做具体限定。
S1102,第一设备与第二设备进行设备能力协商,得到第一电池信息和第二电池信息中的至少一个以及第一能力信息。
在一些实施例中,第一能力信息可以指示第一设备和第二设备是否支持对TS的调度。
其中,一个发现周期可以包括一个DW和一个业务时段,一个业务时段可以包括多个TS,TS为该业务时段中的基本调度单元。
需要说明的是,本申请实施例对发现周期、DW或TS的时长均不进行限制。例如,TS可以为16ms,又例如如图6所示,发现周期可以为524ms,DW可以为16ms。
在一些实施例中,第一能力信息可以用于指示第一设备和第二设备支持的至少一个第一MIMO模式。或者,在另一些实施例中,第一能力信息可以用于指示第一设备和第二设备是否支持调整最大MIMO模式,而不需要一一列举指示所支持的至少一个第一MIMO模式。
在一些实施例中,第一能力信息可以用于指示第一设备和第二设备支持的至少一个第一带宽。或者,在另一些实施例中的,第一能力信息可以用于指示第一设备和第二设备是否支持调整最大带宽,而不需要一一列举所支持的至少一个第一带宽。
需要说明的是,第一设备与第二设备进行设备能力协商的方式,可以参照S702中的相关描述,此处不再一一赘述。
S1103,第一设备与第二设备进行时钟同步。
第一设备与第二设备进行时钟同步,便于后续第一设备与第二设备能够按照相同或相近的时间段接收或发送数据,提高传输数据的可靠性。
在一些实施例中,第一设备为域主设备,可以在DW内广播时钟同步信息,时钟同步信息中可以携带发送该时钟同步信息的第一时间戳。若第二设备接收到该时钟同步信息,则可以生成接收到该时钟同步信息时的第二时间戳,基于第一时间戳和第二时间戳以及光信号的传播速度,第二设备可以确定第二设备与第一设备之间的时间差,那么基于该时间差对第二设备本端当前的第一时刻进行调整,从而完成与第一设备之间的时钟同步。
当然,在实际应用中,第一设备与第二设备也可以通过其他方式进行时钟同步,本申请实施例对此时钟同步的方式不做具体限定。
在一些实施例中,为了进一步降低功耗,第一设备和第二设备也可以确定第一同步周期,并按照第一同步周期进行时钟同步,而不需要在每个发现周期都进行同步,即S1103是可选的步骤。其中,第一同步周期可以为发现周期的整数倍,在一些实施例中,第一同步周期可以被表示为Q个发现周期,Q为大于或等于2的正整数。
其中,确定第一同步周期的方式,可以如下图12所示。
需要说明的是,若域主设备为第三设备而不为第一设备,则第一设备和第二设备,可以基于与S1103中第二设备相似的方式,与第三设备进行时钟同步。
S1104,第一设备与第二设备进行业务类型协商,得到第一业务类型。
其中,第一设备与第二设备进行业务类型协商的方式,可以参照S703中的相关描述,此处不再一一赘述。
需要说明的是,第一设备和第二设备可以在S1101之后至S1105之前,通过协商确定第一设备和第二设备中的哪一个为传输从设备,哪一个为传输主设备。当然,在实际应用中,也可以通过其他方式来确定第一设备和第二设备中的哪一个为传输从设备,哪一个为传输主设备,本申请实施例对在数据传输的双方中确定传输主设备和传输从设备方式,不做具体限定。
S1105,第一设备基于第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息,确定第一传输参数。
由于第一能力信息可以用于指示第一设备和第二设备共同支持的设备能力,那么基于第一能力信息,第一设备和第二设备之间可能会实现多个的传输方式,而这些传输方式中可能某个传输方式更适于传输第一业务类型的数据,某个传输方式的功耗更低,那么第一设备基于第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息,确定第一传输参数,即是在第一设备和第二设备共同支持的设备能力范围内,选择与待传输数据的第一业务类型以及第一设备和第二设备中至少一个的电池状态匹配的传输方式。
其中,第一设备基于第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息,确定第一传输参数的方式,可以参照S704中的相关描述,此处不再一一赘述。
在一些实施例中,第一传输参数可以包括第一时隙(time slot,TS)策略、第二MIMO模式和第二带宽中的至少一个。在一些实施例中,第一能力信息指示了第一设备和第二设备支持对TS的调度,那么第一设备基于第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息,确定第一TS策略。在一些实施例中,第一能力信息指示了第一设备和第二设备支持的至少一个第一MIMO模式,第一设备可以基于第一电池信息和第二电池信息中的至少一个以及第一业务类型,从至少一个第一MIMO模式中确定第二MIMO模式;或者,第一能力信息指示了第一设备和第二设备支持调整最大MIMO模式,第一设备可以从至少一个第一MIMO模式中确定第二MIMO模式。在一些实施例中,第一能力信息指示了第一设备和第二设备支持的至少一个第一带宽,第一设备可以基于第一电池信息和第二电池信息中的至少一个以及第一业务类型,从至少一个第一带宽中确定第二带宽;或者,第一能力信息指示了第一设备和第二设备支持调整最大带宽,第一设备可以从至少一个第一带宽中确定第二带宽。
第一TS策略可以用于指示唤醒状态的TS和休眠状态的TS,进行数据传输的电子设备可以以TS为单位进行休眠或数据传输。在一些实施例中,第一TS策略可以通过位图(bitmap)的方式指示用于指示唤醒状态的TS和休眠状态的TS。
在一些实施例中,第一TS策略可以用于指示发现周期的长度,比如该发现周期所包括的TS总数目。
在一些实施例中,一个发现周期可以表示为如下表3所示,第一TS策略可以包括发现周期:32,即一个发现周期包括32个TS,第一TS策略还可以包括32位的位图:1111 0000 0110 0000 1100 0011 0000 0110,以分别指示对应的TS是处于唤醒状态和休眠状态,其中0表示休眠状态,1表示唤醒状态。
表3
0 1 2 3 4 31
1 1 1 1 0 0
如上表3所示,第X列的第一行可以表示发现周期中的第X个TS,第X列的第二行可以表示该TS是休眠状态还是唤醒状态。
需要说明的是,由前述可知一个发现周期包括发现窗和业务时段,在如上表3所示的发现周期中,前至少一个TS(如第0个和第1个TS)可以与该发现窗对应,从而用于时钟同步,之后的其他TS(如第2个至第31个)可以与业务时段对应,进行数据传输的电子设备可以在与该业务时段对应的休眠状态的TS可以进行休眠,在与该业务时段对应的唤醒状态的TS进行数据传输。且还需要说明的是,每个发现周期中用于进行时钟同步的TS的数目,可以由域主设备向域从设备通知得到,当然,域从设备也可以通过其他方式来确定每个发现周期中用于进行时钟同步的TS的数目,本申请实施例对确定每个发现周期中用于进行时钟同步的TS的数目的方式不做具体限定。
例如,第一设备确定第二设备的第二电池信息包括:省电模式:1,电量状态:0,即第二设备当前开启了省电状态,未接入电源且电量较低;确定第一能力信息包括:自适应MIMO:1,自适应带宽:1,即第一设备和第二设备均支调整最大MIMO模式和最大带宽;确定第一业务类型为0,即为网页浏览。第一设备确定第二MIMO模式为1*1(即1进1出),第二带宽为20MHz,第一TS策略包括发现周期:32,位图:1110 0000 0110 0000 1100 0011 0000 0110。或者,第二电池信息和第一能力信息不变,但第一业务类型为1,即音频或视频投屏,则第一设备确定第二MIMO模式为1*1,第二带宽为20MHz,第一TS策略包括发现周期:32,位图:1110 0100 0110 0010 1100 0100 0000 0110。或者,第二电池信息和第一能力信息不变,但第一业务类型为2,即音频或视频投屏,则第一设备确定第二MIMO模式为2*2(即2进2出),第二带宽为40MHz,第一TS策略包括发现周期:32,位图:1110 0100 0110 0010 1100 0100 0000 0110。可以看出,第一设备可以通过第二电池信息、第一能力信息和第一业务类型,确定相匹配的第一传输参数,当第二电池信息、第一能力信息和第一业务类型中的至少一个(如第一业务类型)不同时,所确定的第一传输参数也不同,与双方至少一个的电池状态以及所传输数据的业务类型相匹配,既能够减少功耗浪费的问题,也减少了传输方式与业务类型不匹配导致的用户体验下降的问题。
S1106,第一设备向第二设备发送传输能力请求,该传输能力请求中携带第一传输参数。
S1107,第二设备可以向第一设备发送与该传输能力请求对应的应答。
需要说明的是,在实际应用中,第一设备也可以通过其他方式来使得第二设备获取到第一传输参数,比如广播等。
需要说明的是,在实际应用中,当第二设备获取到第一传输参数时,也可以不向第二设备发送与该传输能力请求对应的应答,因此,S1107为可选的步骤。
S1108,第一设备基于第一传输参数与第二设备进行数据传输。
其中,第一设备和第二设备可以在发现周期的业务时段进行数据传输。
在一些实施例中,第一设备和第二设备可以基于第一TS策略,在与业务时段对应的唤醒状态的TS进行数据传输,且与业务时段对应的休眠状态的TS进入休眠状态。
需要说明的是,若域主设备为第三设备而不是第一设备,且第一设备也不向其他电子设备传输数据,则第一设备也可以在与业务时段对应的休眠状态的TS进入休眠状态。
其中,第一设备和第二设备可以基于第一TS策略,以TS为单位进行休眠,提高了对休眠的时机和时长的控制精度,从而能够进一步减少功耗。
在一些实施例中,若第一业务类型为单向流业务,则第一设备可以获取待传输的多个第一数据包,将该多个第一数据包聚合为第二数据包,基于第一传输参数向第二设备发送第二数据包。
在一些实施例中,第一设备确定第一测量周期,并在与第一测量周期对应的发现周期中的业务时段,对第一设备与第二设备之间的连接的通信质量进行测量。在另一些实施例中,第二设备确定第二测量周期,并在与第一测量周期对应的发现周期中的业务时段,对第一设备与第二设备之间的连接的通信质量进行测量,并将测量结果通知给第一设备,相应的第一设备也可以接收该测量结果。其中,第一测量周期和第二测量周期可以为发现周期的整数倍,在一些实施例中,第一同步周期可以被表示为P个发现周期,P为大于或等于2的正整数。
其中,第一设备确定第一测量周期的方式,可以如下图12所示。
可以理解的是,第一设备和第二设备可以在某一次执行S1101建立连接之后,第一设备和第二设备的设备能力、电源状态以及所传输的数据的业务类型,也可能发生变化,相应的,第一设备和第二设备再次执行与S1102-S1108中的至少部分步骤相似或相同的步骤,从而获取新的能力信息、新的电池信息和新的业务类型中的至少一个,重新确定第二传输参数,并按照新确定的第二传输参数进行数据传输。也即是,第一设备和第二设备并不需要在每次执行本申请实施例所提供的数据传输方法时都执行S1101。
在本申请实施例中,第一设备可以与第二设备协商,从而得到第一设备的第一电池信息和第二设备的第二电池信息中的至少一个,以及第一设备和第二设备共同支持的第一能力信息、待传输的数据对应的第一业务类型。基于第一电池信息和第二设备的第二电池信息中的至少一个、第一能力信息和第一业务类型,确定第一传输参数,也即是在第一设备和第二设备共同支持的设备能力范围内,选择与待传输数据的第一业务类型以及第一设备和第二设备中至少一个的电池状态匹配的传输方式。那么通过该传输方式进行数据传输,便能够降低第一设备和第二设备中至少一个的功耗。其中,第一传输参数包括第一TS策略,第一设备和第二设备中的至少一个可以以TS为单位 进行休眠,提高了对休眠的时机和时长的控制精度,从而能够进一步减少功耗。
在一些实施例中,第一设备还可以按照与第二设备进行数据传输相似的方式,与第四设备建立D2D类型的连接并进行数据传输。其中,在S1101中,第一设备与第四设备可以建立D2D类型的连接;在S1102中,第一设备与第四设备可以进行设备能力协商;在S1103中,第一设备与第四设备可以进行时钟同步;在S1104中,第一设备与第四设备可以进行业务能力协商。之后,第一设备可以按照与S1105相似或相同的方式,确定第三传输参数;按照与S1106和S1107相似或相同方式,通知第四设备第三传输参数;按照与S1108相似或相同的方式,与第四设备进行数据传输。可以看出,由于第一设备、第二设备和第四设备的电源状态可能不同,第一设备和第二设备共同支持的设备能力,与第一设备和第四设备共同支持的设备能力可能不同,而第一设备和第二设备传输的数据的业务类型,与第一设备和第四设备传输的数据的业务类型也可能不同,那么第一设备和第二设备可以基于第一传输参数与第二设备进行数据传输,基于第三传输参数与第四设备进行数据传输,也就实现了在与不同的电子设备进行数据传输时,可以基于与各电子设备共同支持的设备能力差异、电电池状态以及传输数据的业务类型差异,通过匹配的传输方式进行数据传输。
相似的,第四设备与第二设备之间也可以执行与S1101-S1108中的至少部分步骤相似或相同的步骤,从而实现第四设备与第二设备之间的数据传输。且需要说明的是,如图11所示,第四设备和第二设备可以先进行设备能力协商,来确定与第二设备共同支持的设备能力,那么在后续如果需要与第二设备进行数据传输,则不需要再次与第二设备进行设备能力协商,减少进行数据传输之前的等待时间,从提高后续第四设备与第二设备之间进行数据传输的效率。
也即是,在一些实施例中,D2D域中的任一设备可以事先(比如在DW内)发现同一D2D域中的其他设备,并与该其他设备协商设备能力,类似的,也可以与该其他设备协商业务能力,从而在需要后续与某一设备进行数据传输时,可以直接基于上述协商的结果确定传输参数并基于该传输参数进行数据传输,提高数据传输效率。当然,D2D域中的任一设备也可以不事先与同一D2D域中的其他设备协商设备能力或业务能力,而是在需要与某一设备进行数据传输时,再与该设备协商设备能力和业务能力。
请参照图12,为本申请实施例所提供的一种确定同步周期或测量周期的方法的流程图。该方法可以应用于如图5所示的系统,第一设备和第二设备可以为域从设备,如设备D 510、设备E 520或设备F 530,第三设备可以为域主设备,如设备G 540。需要说明的是,该方法并不以图12以及以下所述的具体顺序为限制,应当理解,在其它实施例中,该方法其中部分步骤的顺序可以根据实际需要相互交换,或者其中的部分步骤也可以省略或删除。该方法包括如下步骤:
S1201,第一设备与第三设备建立D2D类型的连接。
需要说明的是,第一设备与第三设备建立D2D类型的连接的方式,可以与前述S1101中第一设备与第二设备建立D2D类型的连接的方式相似,此处不再一一赘述。
S1202,第一设备与第三设备进行时钟同步。
需要说明的是,第一设备与第三设备进行时钟同步的方式,可以参照前述S1103中第一设备与第二设备进行时钟同步的方式相似,此处不再一一赘述。
S1203,第一设备基于第一设备的电池信息,确定第一同步周期和/或第一测量周期。
其中,当第一设备未接入电源、电池容量越低、剩余电量越低,则第一同步周期和第一测量周期可以越长。
在一些实施例中,第一设备可以基于第一业务类型中和第一设备的电池信息,确定第一同步周期和/或第一测量周期。在一些实施例中,第一设备可以基于第一设备的晶振参数和第一业务类型中的至少一个以及第一设备的电池信息,确定第一同步周期。
其中,晶振参数可以用于指示第一设备的时钟精度,当该时钟精度越高时,第一同步周期可以越长。
需要说明的是,若第一设备的所能传输的数据的业务类型比较单一,即只能够传输第一业务类型的数据,那么第一设备即使不与第二设备进行业务类型协商便可以确定第一业务类型。因此第一设备在确定第一同步周期或第一测量周期时,可以确定第一业务类型。
例如,第一设备确定第二设备的第二电池信息包括:省电模式:1,电量状态:0,即第二设备当前开启了省电状态,未接入电源且电量较低;确定第一业务类型为0,即为网页浏览。第一设备确定同步周期为4(个发现周期),测量周期为4(个发现周期)。或者,第二电池信息和第一能力信息不变,但第一业务类型为1,即音频或视频投屏,则第一设备确定同步周期为4(个发现周期),测量周期为2(个发现周期)。或者,第二电池信息和第一能力信息不变,但第一业务类型为2,即音频或视频投屏,则第一设备确定同步周期为4(个发现周期),测量周期为1(个发现周期)。可以看出,第一设备可以通过第二电池信息和第一业务类型,确定相匹配的发现周期和测量周期,当第二电池信息和第一业务类型中的至少一个(如第一业务类型)不同时,所确定的发现周期和测量周期也不同,与双方至少一个的电池状态以及所传输数据的业务类型相匹配,能够减少功耗浪费。
S1204,第一设备向第三设备通知第一同步周期。
由于第一设备为域从设备,第三设备为域主设备,第三设备可能会在DW内,向第一设备发送控制指令,比如控制第一设备关闭电源等,如果第一设备在某个发现周期的DW期间处于休眠状态,则有可能无法接收到该控制指令,因此,第一设备可以将确定的第一同步周期通知给第三设备,以提高传输系统的稳定性。
需要说明的是,在另一些实施例中,第三设备可以不在DW内向第一设备发送控制指令,因此,第一设备也可以不向第三设备通知第一同步周期,因此S1204为可选的步骤。
在一些实施例中,第一设备可以在与第一同步周期对应的发现周期中的DW内,与第三设备进行时钟同步。那么在与第一同步周期不对应的发现周期的DW中,第一设备可以在原先用于时钟同步的时间内进入休眠状态,从而降低功耗。
例如,第一同步周期为4个发现周期,即第一设备每间隔4发现周期,与第三设备进行时钟同步,则请参照图13,第一设备在第4L+1个发现周期的DW内与第三设备进行时钟同步,其中L为非负的整数。那么在第4L+1、第4L+2和第4L+3个发现周期中的DW内,第一设备不需要与第三设备进行时钟同步,因此在原先用于时钟同 步的时间内,可以进入休眠状态。
在一些实施例中,若第一设备与第二设备进行数据传输,则第一设备可以在与第一测量周期对应的发现周期中的业务时段,测量与第二设备之间的连接的通信质量。那么在与第一测量周期不对应的业务时段内,第一设备可以不进行通信质量测量,原先用于测量的时间可以用于休眠,从而降低功耗。
在本申请实施例中,第一设备可以基于第一设备的电池信息,确定第一同步周期,并基于第一同步周期与第三设备进行时钟同步,因此在与第一同步周期不对应的发现周期的DW包括的原先用于时钟同步的时间内,可以进入休眠状态,从而降低功耗。第一设备也可以基于第一设备的电池信息,确定第一测量周期,并基于第一测量周期测量第一设备与第二设备之间的连接的通信质量,因此在与第一测量周期不对应的发现周期的业务时段内,原先用于测量的时间可以用于休眠,从而降低功耗。
相似的,第二设备也可以执行与S1201-S1204相似的方式,确定第一同步周期或第一测量周期中的至少一个。
基于同一发明构思,作为对上述方法的实现,本申请实施例提供了一种数据传输装置,该装置实施例与前述方法实施例对应,为便于阅读,本装置实施例不再对前述方法实施例中的细节内容进行逐一赘述,但应当明确,本实施例中的装置能够对应实现前述方法实施例中的全部内容。
请参照图14,为本申请实施例提供的数据传输装置1400的结构示意图,如图14所示,本实施例提供的装置包括:处理单元1410和收发单元1420。
在一种可能的实现方式中,该数据传输装置1400可对应于上文方法实施例中的第一设备,例如,可以为第一设备,或者配置于第一设备中的芯片。该数据传输装置1400用于执行上述方法中第一设备对应的各个步骤或流程。
处理单元1410,用于与第二设备协商第一电池信息和第二电池信息中的至少一个、第一能力信息以及第一业务类型;基于第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息,确定第一传输参数;
收发单元1420,用于向第二设备发送第一传输参数;基于第一传输参数与第二设备传输数据;
其中,第一电池信息用于指示数据传输装置1400的电池状态,第二电池信息用于指示第二设备的电池状态,第一能力信息用于指示数据传输装置1400和第二设备共同支持的设备能力,第一业务类型为数据传输装置1400与第二设备待传输的数据对应的业务类型,数据传输装置1400和第二设备之间通过Wi-Fi连接。
可选地,第一能力信息用于指示数据传输装置1400和第二设备支持调整的至少一个第一MIMO模式,处理单元1410具体用于:
基于第一电池信息和第二电池信息中的至少一个以及第一业务类型,从至少一个第一MIMO模式中确定第二MIMO模式。
可选地,第一能力信息用于指示数据传输装置1400和第二设备支持调整最大MIMO模式,处理单元1410具体用于:
确定数据传输装置1400和第二设备共同支持的至少一个第一MIMO模式;
基于第一电池信息和第二电池信息中的至少一个以及第一业务类型,从预设的至 少一个第一MIMO模式中确定第二MIMO模式。
可选地,第一能力信息用于指示数据传输装置1400和第二设备支持的至少一个第一带宽,处理单元1410具体用于:
基于第一电池信息和第二电池信息中的至少一个以及第一业务类型,从至少一个第一带宽中确定第二带宽。
可选地,第一能力信息用于指示数据传输装置1400和第二设备支持调整最大带宽,处理单元1410具体用于:
确定数据传输装置1400和第二设备共同支持的至少一个第一带宽;
基于第一电池信息和第二电池信息中的至少一个以及第一业务类型,从预设的至少一个第一带宽中确定第二带宽。
可选地,第一电池信息用于指示数据传输装置1400的电池容量、数据传输装置1400的电池剩余电量、数据传输装置1400的插电状态指示信息和数据传输装置1400的省电模式状态中的至少一个,数据传输装置1400的插电状态包括数据传输装置1400当前接入电源或未接入电源,数据传输装置1400的省电模式状态包括是否开启省电模式;第二电池信息用于指示第二设备的电池容量、第二设备的电池剩余电量、第二设备的插电状态和第二设备的省电模式状态中的至少一个,第二设备的插电状态包括当前接入电源或未接入电源,第二设备的省电模式状态包括是否开启省电模式。
可选地,数据传输装置1400与第二设备之间的连接类型为P2P类型,数据传输装置1400为GO,第二设备为GC。
可选地,第一能力信息用于指示数据传输装置1400和第二设备支持基于NoA信令的数据传输调度,处理单元1410具体用于:
基于第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息,确定第一NoA策略。
可选地,数据传输装置1400和第二设备为同一D2D域中的设备,数据传输装置1400与第二设备之间的连接类型为D2D类型,数据传输装置1400为传输主设备,第二设备为传输从设备,传输主设备用于对传输主设备与传输从设备之间的数据传输过程进行控制。
可选地,第一能力信息用于指示数据传输装置1400和第二设备支持对TS的调度,处理单元1410具体用于:
基于第一电池信息和第二电池信息中的至少一个以及第一业务类型和第一能力信息,确定第一TS策略。
可选地,数据传输装置1400为域从设备,D2D域中还包括作为域主设备的第三设备,处理单元1410还用于:
基于第一电池信息,确定第一同步周期;
基于第一同步周期,与第三设备进行时钟同步。
可选地,收发单元1420还用于:
向第三设备通知第一同步周期。
可选地,处理单元1410还用于:
基于第一电池信息,确定第一测量周期;
基于第一测量周期,对与第二设备之间的连接的通信质量进行测量。
可选地,若第一业务类型为单向流业务,则收发单元1420具体用于:
获取待传输的多个第一数据包;
将多个第一数据包聚合为第二数据包;
基于第一传输参数,向第二设备发送第二数据包。
在一种可能的实现方式中,该数据传输装置1400可对应于上文方法实施例中的第二设备,例如,可以为第二设备,或者配置于第二设备中的芯片。该数据传输装置1400用于执行上述方法中第二设备对应的各个步骤或流程。
所属领域的技术人员可以清楚地了解到,为了描述的方便和简洁,仅以上述各功能单元、模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能单元、模块完成,即将所述装置的内部结构划分成不同的功能单元或模块,以完成以上描述的全部或者部分功能。实施例中的各功能单元、模块可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中,上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。另外,各功能单元、模块的具体名称也只是为了便于相互区分,并不用于限制本申请的保护范围。上述系统中单元、模块的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
上述各个方案的数据传输装置具有实现上述方法中第一设备或第二设备所执行的相应步骤的功能,并具有类似的技术效果。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块;例如通信单元可以由收发机替代(例如,通信单元中的发送单元可以由发送机替代,通信单元中的接收单元可以由接收机替代),其它单元,如处理单元等可以由处理器替代,分别执行各个方法实施例中的收发操作以及相关的处理操作。
此外,上述通信单元还可以是收发电路(例如可以包括接收电路和发送电路),处理单元可以是处理电路。在本申请的实施例,图14中的数据传输装置可以是前述实施例中的电子设备,也可以是芯片或者芯片系统,例如:片上系统(system on chip,SoC)。其中,通信单元可以是输入输出电路、通信接口;处理单元为该芯片上集成的处理器或者微处理器或者集成电路。在此不做限定。
基于同一发明构思,本申请实施例还提供了一种电子设备。图15为本申请实施例提供的电子设备1500的结构示意图,如图15所示,本实施例提供的电子设备包括:存储器1510和处理器1520,存储器1510用于存储计算机程序;处理器1520用于在调用计算机程序时执行上述方法实施例所述的方法。
本实施例提供的电子设备可以执行上述方法实施例,其实现原理与技术效果类似,此处不再赘述。
基于同一发明构思,本申请实施例还提供了一种芯片系统。该所述芯片系统包括处理器,所述处理器与存储器耦合,所述处理器执行存储器中存储的计算机程序,以实现上述方法实施例所述的方法。
其中,该芯片系统可以为单个芯片,或者多个芯片组成的芯片模组。
本申请实施例还提供一种计算机可读存储介质,其上存储有计算机程序,计算机 程序被处理器执行时实现上述方法实施例所述的方法。
本申请实施例还提供一种计算机程序产品,当计算机程序产品在电子设备上运行时,使得电子设备执行时实现上述方法实施例所述的方法。
上述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请实现上述实施例方法中的全部或部分流程,可以通过计算机程序来指令相关的硬件来完成,所述的计算机程序可存储于一计算机可读存储介质中,该计算机程序在被处理器执行时,可实现上述各个方法实施例的步骤。其中,所述计算机程序包括计算机程序代码,所述计算机程序代码可以为源代码形式、对象代码形式、可执行文件或某些中间形式等。所述计算机可读存储介质至少可以包括:能够将计算机程序代码携带到拍照装置/终端设备的任何实体或装置、记录介质、计算机存储器、只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,RAM)、电载波信号、电信信号以及软件分发介质。例如U盘、移动硬盘、磁碟或者光盘等。在某些司法管辖区,根据立法和专利实践,计算机可读介质不可以是电载波信号和电信信号。
在上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述或记载的部分,可以参见其它实施例的相关描述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。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。
在本申请所提供的实施例中,应该理解到,所揭露的装置/设备和方法,可以通过其它的方式实现。例如,以上所描述的装置/设备实施例仅仅是示意性的,例如,所述模块或单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通讯连接可以是通过一些接口,装置或单元的间接耦合或通讯连接,可以是电性,机械或其它的形式。
应当理解,当在本申请说明书和所附权利要求书中使用时,术语“包括”指示所描述特征、整体、步骤、操作、元素和/或组件的存在,但并不排除一个或多个其它特征、整体、步骤、操作、元素、组件和/或其集合的存在或添加。
还应当理解,在本申请说明书和所附权利要求书中使用的术语“和/或”是指相关联列出的项中的一个或多个的任何组合以及所有可能组合,并且包括这些组合。
如在本申请说明书和所附权利要求书中所使用的那样,术语“如果”可以依据上下文被解释为“当...时”或“一旦”或“响应于确定”或“响应于检测到”。类似地,短语“如果确定”或“如果检测到[所描述条件或事件]”可以依据上下文被解释为意指“一旦确定”或“响应于确定”或“一旦检测到[所描述条件或事件]”或“响应于检测到[所描述条件或事件]”。
另外,在本申请说明书和所附权利要求书的描述中,术语“第一”、“第二”、“第三”等仅用于区分描述,而不能理解为指示或暗示相对重要性。
在本申请说明书中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此,在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”等不是必然都参考相同的实施例,而是意味着“一个或多个但不是所有的实施例”,除非是以其他方式另外特别强调。术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”,除非是以其他方式另外特别强调。
最后应说明的是:以上各实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述各实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (16)

  1. 一种基于无线网络Wi-Fi的数据传输方法,其特征在于,所述方法包括:
    第一设备与第二设备协商第一电池信息和第二电池信息中的至少一个、第一能力信息以及第一业务类型;
    所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数;
    所述第一设备向所述第二设备发送所述第一传输参数;
    所述第一设备基于所述第一传输参数与所述第二设备传输数据;
    其中,所述第一电池信息用于指示所述第一设备的电池状态,所述第二电池信息用于指示所述第二设备的电池状态,所述第一能力信息用于指示所述第一设备和所述第二设备共同支持的设备能力,所述第一业务类型为所述第一设备与所述第二设备待传输的数据对应的业务类型,所述第一设备和所述第二设备之间通过Wi-Fi连接。
  2. 根据权利要求1所述的方法,其特征在于,所述第一能力信息用于指示所述第一设备和所述第二设备支持调整的至少一个第一多进多出MIMO模式,所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数,包括:
    所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型,从所述至少一个第一MIMO模式中确定第二MIMO模式。
  3. 根据权利要求1所述的方法,其特征在于,所述第一能力信息用于指示所述第一设备和所述第二设备支持调整最大MIMO模式,在所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数之前,所述方法还包括:
    所述第一设备确定所述第一设备和所述第二设备共同支持的至少一个第一MIMO模式;
    所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数,包括:
    所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型,从所述至少一个第一MIMO模式中确定第二MIMO模式。
  4. 根据权利要求1-3任一所述的方法,其特征在于,所述第一能力信息用于指示所述第一设备和所述第二设备支持的至少一个第一带宽,所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数,包括:
    所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型,从所述至少一个第一带宽中确定第二带宽。
  5. 根据权利要求1-3任一所述的方法,其特征在于,所述第一能力信息用于指示所述第一设备和所述第二设备支持调整最大带宽,在所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数之前,所述方法还包括:
    所述第一设备确定所述第一设备和所述第二设备共同支持的至少一个第一带宽;
    所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数,包括:
    所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型,从所述至少一个第一带宽中确定第二带宽。
  6. 根据权利要求1-5任一所述的方法,其特征在于,所述第一电池信息用于指示所述第一设备的电池容量、所述第一设备的电池剩余电量、所述第一设备的插电状态和所述第一设备的省电模式状态中的至少一个,所述第一设备的插电状态包括当前接入电源或未接入电源,所述第一设备的省电模式状态包括是否开启省电模式;所述第二电池信息用于指示所述第二设备的电池容量、所述第二设备的电池剩余电量、所述第二设备的插电状态和所述第二设备的省电模式状态中的至少一个,所述第二设备的插电状态包括当前接入电源或未接入电源,所述第二设备的省电模式状态包括是否开启省电模式。
  7. 根据权利要求1-6任一所述的方法,其特征在于,所述第一设备与所述第二设备之间的连接类型为点到点P2P类型,所述第一设备为组所有者GO,所述第二设备为组客户端GC。
  8. 根据权利要求7所述的方法,其特征在于,所述第一能力信息用于指示所述第一设备和所述第二设备支持基于主动通知NoA信令的数据传输调度,所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数,包括:
    所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一NoA策略。
  9. 根据权利要求1-6任一所述的方法,其特征在于,所述第一设备和所述第二设备为同一设备到设备D2D域中的设备,所述第一设备与所述第二设备之间的连接类型为D2D类型,所述第一设备为传输主设备,所述第二设备为传输从设备,所述传输主设备用于对所述传输主设备与所述传输从设备之间的数据传输过程进行控制。
  10. 根据权利要求9所述的方法,其特征在于,所述第一能力信息用于指示所述第一设备和所述第二设备支持对时隙TS的调度,所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一传输参数,包括:
    所述第一设备基于所述第一电池信息和所述第二电池信息中的至少一个以及所述第一业务类型和所述第一能力信息,确定第一TS策略。
  11. 根据权利要求9或10所述的方法,其特征在于,所述第一设备为域从设备,所述D2D域中还包括作为域主设备的第三设备,所述方法还包括:
    所述第一设备基于所述第一电池信息,确定第一同步周期;
    所述第一设备基于所述第一同步周期,与所述第三设备进行时钟同步。
  12. 根据权利要求11所述的方法,其特征在于,所述方法还包括:
    所述第一设备向所述第三设备通知所述第一同步周期。
  13. 根据权利要求9-12任一所述的方法,其特征在于,还包括:
    所述第一设备基于所述第一电池信息,确定第一测量周期;
    所述第一设备基于所述第一测量周期,对与所述第二设备之间的连接的通信质量进行测量。
  14. 根据权利要求1-13任一所述的方法,其特征在于,若所述第一业务类型为单向流业务,则所述第一设备基于所述第一传输参数与所述第二设备传输数据,包括:
    所述第一设备获取待传输的多个第一数据包;
    所述第一设备将所述多个第一数据包聚合为第二数据包;
    所述第一设备基于所述第一传输参数,向所述第二设备发送所述第二数据包。
  15. 一种电子设备,其特征在于,包括:存储器和处理器,所述存储器用于存储计算机程序;所述处理器用于在调用所述计算机程序时执行如权利要求1-14任一项所述的方法。
  16. 一种计算机可读存储介质,其上存储有计算机程序,其特征在于,所述计算机程序被处理器执行时实现如权利要求1-14任一项所述的方法。
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