WO2024055878A1 - 通信方法和通信装置 - Google Patents

通信方法和通信装置 Download PDF

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Publication number
WO2024055878A1
WO2024055878A1 PCT/CN2023/117153 CN2023117153W WO2024055878A1 WO 2024055878 A1 WO2024055878 A1 WO 2024055878A1 CN 2023117153 W CN2023117153 W CN 2023117153W WO 2024055878 A1 WO2024055878 A1 WO 2024055878A1
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WIPO (PCT)
Prior art keywords
signal
time
time unit
length
power
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PCT/CN2023/117153
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English (en)
French (fr)
Inventor
薛祎凡
薛丽霞
李强
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority claimed from CN202211167586.1A external-priority patent/CN117768980A/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2024055878A1 publication Critical patent/WO2024055878A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/02Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04Modulator circuits; Transmitter circuits
    • 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

Definitions

  • the present application relates to the field of communication, and more specifically, to a communication method and a communication device.
  • the terminal device can receive the wake-up signal through a separate small low-power circuit, such as a wake up receiver (WUR), and the main receiver can be in a deep sleep state.
  • a wake up receiver WUR
  • the terminal device detects the wake-up signal through the WUR, the terminal device triggers the wake-up of the main receiver. After the main receiver wakes up, the terminal device can perform data transmission through the main receiver.
  • WUR wake up receiver
  • OOK modulation mainly refers to modulating information by using whether the signal is sent or not.
  • the corresponding wake-up circuit can use the envelope detection method to receive the signal.
  • OOK modulation technology can achieve demodulation with a very low complexity receiver, so it can achieve the low power consumption goal of the wake-up circuit. Since OOK modulation only uses the amplitude information of the signal, if the wake-up signal uses OOK modulation, although the power consumption of the receiver can be reduced, the demodulation performance is relatively poor. How to improve the demodulation performance of the wake-up signal using OOK modulation is a problem to be solved.
  • This application provides a communication method and communication device for improving the demodulation performance of a wake-up signal using OOK modulation.
  • the first aspect provides a communication method, which can be executed by a terminal device, or can also be executed by a component (such as a chip or circuit) of the terminal device, which is not limited.
  • a component such as a chip or circuit
  • the following description takes execution by a terminal device as an example.
  • the method may include: the terminal device receives a wake-up signal from the network device on N time units, the wake-up signal includes N1 first signals and N2 second signals, the first signal indicates the first bit value, and the second signal indicates the Two-bit value, the signal power of the first signal is not 0, the signal power of the second signal is 0, each of the N1 first signals occupies one time unit of the N time units, and the N2 second signals Each second signal in the signal occupies one time unit among the N time units.
  • the first signal includes a part with a power of 0 and a part with a power that is not 0.
  • the part of the first signal with a signal power that is not 0 is in N time units.
  • the first signal indicates the first bit value
  • the second signal indicates the second bit value
  • the signal power of the first signal is not 0, and the signal power of the second signal is 0.
  • OOK on off key
  • the time length of the part of the first signal whose power is not 0 is shortened in one time unit through design, that is to say, the time length occupied by the part of the first signal whose signal power is not 0 is designed to be greater than 0 and less than the time unit.
  • the energy of the first signal can be concentrated in a shorter period of time, improving the signal quality in a short period of time. Noise ratio, thereby improving the demodulation performance of the wake-up signal.
  • the method further includes: the terminal device receives indication information from the network device, the indication information indicates time information of the first signal, and the time information of the first signal includes at least one of the following: Items: the ratio of the length of time occupied by the part where the signal power is not 0 in the first signal to the length of the time unit, the length of time occupied by the part where the signal power is not 0 in the first signal, the signal power of the first signal is The ratio of the length of time occupied by the part of 0 to the length of the time unit, the length of time occupied by the part of the first signal with signal power of 0.
  • the terminal device demodulates the wake-up signal, including: the terminal device demodulates the wake-up signal based on time information of the first signal.
  • the network device can configure the time information of the first signal and indicate it to the terminal device, so that the terminal device can demodulate based on the length of time occupied by the non-zero power part of the first signal in a time unit.
  • Wake-up signal For example, if the terminal device knows the length of time occupied by the non-zero power part in the first signal in a time unit, the terminal device can choose to demodulate the corresponding time interval; if the terminal device does not know the time interval in the first signal. The length of time occupied by the part with non-zero power in a time unit, the terminal device will use the entire time unit as the time interval corresponding to demodulation, which will introduce more noise energy.
  • the terminal device demodulates the wake-up signal based on the length of time occupied by the non-zero power part of the first signal in a time unit, which can avoid introducing more noise energy, thereby improving the demodulation performance of the wake-up signal using OOK modulation. .
  • the indication information is period value configuration information of the synchronization signal, and the period value of the synchronization signal has a correlation relationship with the time information of the first signal.
  • the period value of the synchronization signal has a correlation relationship with the time information of the first signal. Therefore, the terminal device can determine the time information of the first signal based on the period value of the synchronization signal. In this way, the network device indicates the period value of the synchronization signal to the terminal device, which not only enables the terminal device to learn the period value of the synchronization signal, but also enables the terminal device to determine the period value of the synchronization signal based on the correlation between the period value of the synchronization signal and the time information of the first signal. The time information of the first signal corresponding to the period value is determined, thereby saving signaling overhead.
  • the period of the synchronization signal will affect the maximum time offset. Therefore, by establishing the period value of the synchronization signal and the third The correlation between the time information of a signal can achieve a balance between demodulation performance and resistance to time offset.
  • the method further includes: the terminal device periodically receives a synchronization signal from the network device, and the period value of the synchronization signal has a correlation relationship with the time information of the first signal.
  • the time information of a signal includes at least one of the following: the ratio of the length of time occupied by the part where the signal power is not 0 in the first signal to the length of the time unit, the time occupied by the part of the first signal where the signal power is not 0 Length, the ratio of the length of time occupied by the part with signal power of 0 in the first signal to the length of the time unit, and the length of time occupied by the part with signal power of 0 in the first signal.
  • the period value of the synchronization signal has an associated relationship with the time information of the first signal.
  • the terminal device can determine the time information of the first signal based on the period value of the synchronization signal, or it can also determine the time information of the first signal based on the period value of the synchronization signal.
  • the period value of the synchronization signal indicates the period value of the synchronization signal or the time information of the first signal to the terminal device, and the terminal device can simultaneously learn the period value of the synchronization signal and the time information of the first signal, thereby saving signaling overhead.
  • the period of the synchronization signal will affect the maximum time offset. Therefore, by establishing the period value of the synchronization signal and the third The correlation between the time information of a signal can achieve a balance between demodulation performance and resistance to time offset.
  • the method further includes: the terminal device receives configuration information from the network device, the configuration information includes: the portion of the first signal whose signal power is not 0 in the time unit Offset value, or the offset value on the time unit of the part of the first signal where the signal power is 0, where the offset value of the part of the first signal where the signal power is not 0 on the time unit is any of the following Item: The offset value between the starting position of the part where the signal power is not 0 in the first signal and the starting position of the time unit, the starting position of the part where the signal power is not 0 in the first signal and the starting position of the time unit The offset value between the end positions, the offset value between the end position of the part where the signal power is not 0 in the first signal and the starting position of the time unit, the end of the part where the signal power is not 0 in the first signal The offset value between the position and the end position of the time unit, where the offset value of the part of the first signal with a signal
  • the network device can configure the offset value of the part of the first signal with power that is not 0 relative to the time unit, or configure the offset value of the part of the first signal with power of 0 relative to the time unit, so that , the terminal device can learn the position of the part of the first signal whose power is not 0 in the time unit based on the offset value, thereby determining the time interval corresponding to the demodulation, to improve the signal-to-noise ratio of the signal in the corresponding time interval for demodulation, Thereby improving the demodulation performance.
  • the second aspect provides a communication method, which can be executed by a network device, or can also be executed by a component of the network device (such as a chip or a circuit), which is not limited.
  • a component of the network device such as a chip or a circuit
  • the following description takes execution by a network device as an example.
  • the method may include: the network device generates a wake-up signal; the network device sends the wake-up signal on N time units, and the wake-up signal Including N1 first signals and N2 second signals, the first signal indicates the first bit value, the second signal indicates the second bit value, the signal power of the first signal is not 0, and the signal power of the second signal is 0, Each of the N1 first signals occupies one of the N time units, and each of the N2 second signals occupies one of the N time units.
  • the method further includes: the network device sends indication information, the indication information indicates time information of the first signal, and the time information of the first signal includes at least one of the following: first The ratio of the length of time occupied by the part where the signal power is not 0 in the signal to the length of the time unit, the length of time occupied by the part of the first signal where the signal power is not 0, the proportion of the part where the signal power is 0 in the first signal The ratio of the length of time occupied to the length of the time unit, the length of time occupied by the part of the first signal where the signal power is 0.
  • the indication information is period value configuration information of the synchronization signal, and the period value of the synchronization signal has a correlation relationship with the time information of the first signal.
  • the method further includes: the network device periodically sends a synchronization signal, the period value of the synchronization signal has a correlation relationship with the time information of the first signal, and the time of the first signal
  • the information includes at least one of the following: the ratio of the length of time occupied by the part where the signal power is not 0 in the first signal to the length of the time unit, the length of time occupied by the part of the first signal where the signal power is not 0, the first The ratio of the length of time occupied by the part with signal power of 0 in the signal to the length of the time unit, and the length of time occupied by the part with signal power of 0 in the first signal.
  • the method further includes: the network device sends configuration information, the configuration information includes: an offset value in the time unit of the part of the first signal where the signal power is not 0, Or, the offset value of the part in the first signal where the signal power is 0 on the time unit, where the offset value of the part of the first signal where the signal power is not 0 on the time unit is any one of the following: first The offset value between the starting position of the part where the signal power is not 0 in the signal and the starting position of the time unit, and the offset value between the starting position of the part where the signal power is not 0 in the first signal and the end position of the time unit offset value, the offset value between the end position of the part where the signal power is not 0 in the first signal and the starting position of the time unit, the end position of the part where the signal power is not 0 in the first signal and the time unit The offset value between the end positions of , where the offset value on the time unit of the part with signal power of 0 in
  • a communication method is provided, which method can be executed by a terminal device, or can also be executed by a component (such as a chip or circuit) of the terminal device, which is not limited.
  • a component such as a chip or circuit
  • the following description takes execution by a terminal device as an example.
  • the method may include: the terminal device receives indication information from the network device, the indication information indicates the time information of the first signal, and the time length of the part of the first signal whose signal power is not 0 in at least one time unit among the N time units. Greater than 0 and less than or equal to the length of the time unit, the time information of the first signal includes at least one of the following: the ratio of the length of time occupied by the part where the signal power is not 0 in the first signal to the length of the time unit, the first signal The length of time occupied by the part where the signal power is not 0, the ratio of the length of time occupied by the part where the signal power is 0 in the first signal to the length of the time unit, the part of the first signal where the signal power is 0 Time length; the terminal device receives the wake-up signal from the network device on N time units.
  • the wake-up signal includes N1 first signals and N2 second signals.
  • the method further includes: the terminal device demodulates the wake-up signal based on the time information of the first signal.
  • the network device can configure the time information of the first signal and indicate it to the terminal device, so that the terminal device can demodulate based on the length of time occupied by the non-zero power part of the first signal in a time unit.
  • Wake-up signal For example, if the terminal device knows the length of time occupied by the non-zero power part of the first signal in a time unit, the terminal device can choose The time interval corresponding to demodulation; if the terminal device does not know the length of time occupied by the non-zero power part of the first signal in a time unit, the terminal device will choose to demodulate the entire time unit, which will introduce more noise energy .
  • the terminal device demodulates the wake-up signal based on the length of time occupied by the non-zero power part of the first signal in a time unit, which can avoid introducing more noise energy, thereby improving the demodulation performance of the wake-up signal.
  • the time length of the part of the first signal where the signal power is not 0 in at least one time unit among the N time units is greater than 0 and less than or equal to the length of the time unit. That is to say, the network side or the protocol can predefine ( or support) the length of time occupied by the part where the signal power is not 0 in at least two first signals.
  • the network device can select an appropriate length based on the actual communication situation or actual communication scenario, and notify the terminal device .
  • the indication information is period value configuration information of the synchronization signal, and the period value of the synchronization signal has a correlation relationship with the time information of the first signal.
  • the period value of the synchronization signal has a correlation relationship with the time information of the first signal. Therefore, the terminal device can determine the time information of the first signal based on the period value of the synchronization signal. In this way, the network device indicates the period value of the synchronization signal to the terminal device, which not only enables the terminal device to learn the period value of the synchronization signal, but also enables the terminal device to determine the period value of the synchronization signal based on the correlation between the period value of the synchronization signal and the time information of the first signal. The time information of the first signal corresponding to the period value is determined, thereby saving signaling overhead.
  • the period of the synchronization signal will affect the maximum time offset. Therefore, by establishing the period value of the synchronization signal and the third The correlation between the time information of a signal can achieve a balance between demodulation performance and resistance to time offset.
  • the method further includes: the terminal device receives configuration information from the network device, the configuration information includes: the portion of the first signal whose signal power is not 0 in the time unit Offset value, or the offset value on the time unit of the part of the first signal where the signal power is 0, where the offset value of the part of the first signal where the signal power is not 0 on the time unit is any of the following Item: The offset value between the starting position of the part where the signal power is not 0 in the first signal and the starting position of the time unit, the starting position of the part where the signal power is not 0 in the first signal and the starting position of the time unit The offset value between the end positions, the offset value between the end position of the part where the signal power is not 0 in the first signal and the starting position of the time unit, the end of the part where the signal power is not 0 in the first signal The offset value between the position and the end position of the time unit, where the offset value of the part of the first signal with a signal
  • the network device can configure the offset value of the part of the first signal with power that is not 0 relative to the time unit, or configure the offset value of the part of the first signal with power of 0 relative to the time unit, so that , the terminal device can learn the position of the part of the first signal whose power is not 0 in the time unit based on the offset value, thereby determining the time interval corresponding to the demodulation, to improve the signal-to-noise ratio of the signal in the corresponding time interval for demodulation, Thereby improving the demodulation performance.
  • the fourth aspect provides a communication method, which can be executed by a network device, or can also be executed by a component of the network device (such as a chip or a circuit), which is not limited.
  • a component of the network device such as a chip or a circuit
  • the following description takes execution by a network device as an example.
  • the method may include: the network device sends indication information, the indication information indicates the time information of the first signal, and the time length of the part of the first signal whose signal power is not 0 in at least one of the N time units is greater than 0 and less than Or equal to the length of the time unit, the time information of the first signal includes at least one of the following: the ratio of the length of time occupied by the part where the signal power is not 0 in the first signal to the length of the time unit, the ratio of the length of the time unit where the signal power is not 0 in the first signal, The length of time occupied by the part where the signal power is 0, the ratio of the length of time occupied by the part where the signal power is 0 in the first signal to the length of the time unit, the length of time occupied by the part where the signal power is 0 in the first signal; network The device sends a wake-up signal on N time units.
  • the wake-up signal includes N1 first signals and N2 second signals.
  • the first signal indicates the first bit value
  • the second signal indicates the second bit value
  • the signal power of the first signal is not
  • the signal power of the second signal is
  • each of the N1 first signals occupies one of the N time units
  • each of the N2 second signals occupies N A time unit among time units
  • N is an integer greater than 1
  • the indication information is period value configuration information of the synchronization signal, and the period value of the synchronization signal has an associated relationship with the time information of the first signal.
  • the method further includes: the network device sends configuration information, and the configuration information Including: the offset value of the part of the first signal whose signal power is not 0 in the time unit, or the offset value of the part of the first signal whose signal power is 0 in the time unit, where the signal in the first signal
  • the offset value of the part whose power is not 0 in the time unit is any of the following: the offset value between the starting position of the part whose signal power is not 0 in the first signal and the starting position of the time unit, The offset value between the start position of the part where the signal power is not 0 in a signal and the end position of the time unit, and the offset value between the end position of the part where the signal power is not 0 in the first signal and the start position of the time unit
  • the modulation method of the wake-up signal is on-off keying OOK.
  • the waveform of the wake-up signal is an orthogonal frequency division multiplexing OFDM waveform.
  • each OFDM symbol is a time unit, or each OFDM symbol includes at least two time units.
  • the encoding method of the wake-up signal is Manchester encoding.
  • a fifth aspect provides a communication device configured to perform the method provided in any one of the above first to fourth aspects.
  • the device may include units and/or modules, such as a processing unit and/or a communication unit, for performing the method provided by any of the above implementations of any one of the first to fourth aspects.
  • the device is a communication device (such as a terminal device, or a network device).
  • the communication unit may be a transceiver, or an input/output interface; the processing unit may be at least one processor.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the device is a chip, chip system or circuit used in communication equipment (such as terminal equipment, such as network equipment).
  • the communication unit may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip, chip system or circuit etc.; the processing unit may be at least one processor, processing circuit or logic circuit, etc.
  • a sixth aspect provides a communication device, which includes: a memory for storing programs; and at least one processor for executing computer programs or instructions stored in the memory to execute any one of the above first to fourth aspects. Methods provided by any of the above implementations of aspects.
  • the device is a communication device (such as a terminal device, or a network device).
  • a communication device such as a terminal device, or a network device.
  • the device is a chip, chip system or circuit used in communication equipment (such as terminal equipment, such as network equipment).
  • this application provides a processor for executing the methods provided in the above aspects.
  • a computer-readable storage medium stores program code for device execution.
  • the program code includes any one of the above-mentioned methods for executing any one of the above-mentioned first to fourth aspects. methods provided by this implementation.
  • a ninth aspect provides a computer program product containing instructions.
  • the computer program product When the computer program product is run on a computer, it causes the computer to execute the method provided by any one of the above implementations of any one of the first to fourth aspects. .
  • a chip in a tenth aspect, includes a processor and a communication interface.
  • the processor reads instructions stored in the memory through the communication interface and executes any of the above implementations of any one of the first to fourth aspects. provided method.
  • the chip also includes a memory, in which computer programs or instructions are stored.
  • the processor is used to execute the computer programs or instructions stored in the memory.
  • the processor is used to execute The method provided by any one of the above implementations of any one of the above first to fourth aspects.
  • a communication system including the above terminal equipment and network equipment.
  • FIG. 1 is a schematic diagram of a wireless communication system 100 suitable for an embodiment of the present application.
  • Figure 2 is a schematic diagram of the main circuit and wake-up circuit.
  • Figure 3 is a schematic diagram of the waveform when the signal adopts OOK modulation.
  • Figure 4 is a schematic diagram of the waveform of the signal after passing through the channel.
  • Figure 5 is a schematic diagram of the waveform of the signal after Manchester encoding.
  • Figure 6 is another schematic diagram of the waveform of the signal after Manchester encoding.
  • Figure 7 is a schematic diagram of a noise-free signal and a noisy signal in a high signal-to-noise ratio scenario.
  • Figure 8 is a schematic diagram of a noise-free signal and a noisy signal in a low signal-to-noise ratio scenario.
  • Figure 9 is a schematic diagram of a communication method 900 provided by an embodiment of the present application.
  • Figure 10 is a schematic diagram of ISI caused by multipath delay.
  • Figure 11 is a schematic diagram of the first signal and the second signal on one time unit.
  • Figure 12 is a schematic diagram of the signal-to-noise ratio under various conditions.
  • FIG. 13 is a schematic diagram in which the waveform of the wake-up signal is an ODFM waveform.
  • FIG. 14 is another schematic diagram in which the waveform of the wake-up signal is an ODFM waveform.
  • Figure 15 is a schematic diagram of a communication device 1500 provided by an embodiment of the present application.
  • Figure 16 is a schematic diagram of another communication device 1600 according to an embodiment of the present application.
  • Figure 17 is a schematic diagram of a chip system 1700 provided by an embodiment of the present application.
  • the technical solutions provided by this application can be applied to various communication systems, such as fifth generation (5th generation, 5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division Duplex (frequency division duplex, FDD) system, LTE time division duplex (TDD) system, etc.
  • the technical solution provided by this application can also be applied to future communication systems, such as the sixth generation mobile communication system.
  • the technical solution provided by this application can also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine type Communication (machine type communication, MTC), and Internet of Things (Internet of things, IoT) communication systems or other communication systems.
  • D2D device-to-device
  • V2X vehicle-to-everything
  • M2M machine-to-machine
  • MTC machine type Communication
  • Internet of Things Internet of things, IoT
  • the terminal equipment in the embodiment of this application may also be called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal , wireless communications equipment, user agent or user device.
  • UE user equipment
  • the terminal device may be a device that provides voice/data to users, for example, a handheld device with wireless connection function, a vehicle-mounted device, etc.
  • terminals are: mobile phones, tablets, laptops, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart grids Wireless terminals, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocols , SIP) telephone, wireless local loop (WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, which can Wearable devices, terminal devices in the 5G network or terminal devices in the future evolved public land mobile communication network (public land mobile network, PLMN), etc., are not limited in the embodiments of this application.
  • MID mobile internet devices
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes, etc.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized devices that can achieve complete or partial functions without relying on smartphones. Functions, such as smart watches or smart glasses, etc., and only focusing on a certain type of application function, need to be used in conjunction with other devices such as smartphones, such as various smart bracelets, smart jewelry, etc. for monitoring physical signs.
  • the device used to implement the functions of the terminal device may be a terminal device, or may be a device capable of supporting the terminal device to implement the function, such as a chip system or a chip, and the device may be installed in the terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the network device in the embodiment of the present application may be a device used to communicate with a terminal device.
  • the network device may also be called an access network device or a wireless access network device.
  • the network device may be a base station.
  • the network device in the embodiment of this application may refer to a radio access network (radio access network, RAN) node (or device) that connects the terminal device to the wireless network.
  • radio access network radio access network, RAN node (or device) that connects the terminal device to the wireless network.
  • the base station can broadly cover various names as follows, or be replaced with the following names, such as: Node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB, gNB), relay station, Access point, transmission point (transmitting and receiving point, TRP), transmitting point (TP), primary station, secondary station, multi-standard wireless (motor slide retainer, MSR) node, home base station, network controller, interface Ingress node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (active antenna unit, AAU), radio frequency Head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning node, etc.
  • NodeB Node B
  • eNB evolved base station
  • next generation NodeB next generation NodeB, gNB
  • relay station Access point
  • transmission point transmitting and receiving
  • the base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof.
  • a base station may also refer to a communication module, modem or chip used in the aforementioned equipment or devices.
  • the base station can also be a mobile switching center and equipment that performs base station functions in D2D, V2X, and M2M communications, network-side equipment in 6G networks, equipment that performs base station functions in future communication systems, etc.
  • Base stations can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific equipment form used by the network equipment.
  • Base stations can be fixed or mobile.
  • a helicopter or drone may be configured to act as a mobile base station, and one or more cells may move based on the mobile base station's location.
  • a helicopter or drone may be configured to serve as a device that communicates with another base station.
  • the network device mentioned in the embodiments of this application may be a device including a CU, or a DU, or a device including a CU and a DU, or a control plane CU node (central unit-control plane, CU -CP)) and user plane CU nodes (central unit-user plane (CU-UP)) and DU node equipment.
  • CU central unit-control plane
  • CU-UP central unit-user plane
  • Network equipment and terminal equipment can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and satellites in the sky. In the embodiments of this application, the scenarios in which network devices and terminal devices are located are not limited.
  • FIG. 1 is a schematic diagram of a wireless communication system 100 suitable for an embodiment of the present application.
  • the wireless communication system 100 may include at least one network device, such as the network device 110 shown in FIG. 1
  • the wireless communication system 100 may further include at least one terminal device, such as the terminal device 120 shown in FIG. 1 .
  • both network equipment and terminal equipment can be configured with multiple antennas, and network equipment and terminal equipment can communicate using multi-antenna technology.
  • the network device may manage one or more cells, and one cell may include at least one terminal device.
  • the network device 110 and the terminal device 120 form a single-cell communication system, and it is assumed that the cell is recorded as cell #1.
  • the network device 110 may be a network device in cell #1, or the network device 110 may serve a terminal device (eg, terminal device 120) in cell #1.
  • a cell can be understood as an area within the wireless signal coverage of a network device.
  • FIG. 1 is only a simplified schematic diagram for ease of understanding.
  • the wireless communication system 100 may also include other network devices or other terminal devices, which are not shown in FIG. 1 .
  • Wake-up circuit It is also called wake-up receiver (WUR) or wake-up module. It can be understood as a circuit used by the terminal device in the idle state, or it can be understood as a separate small circuit with low power consumption. The low-power small circuit can be implemented using a separate small circuit or chip with a simple structure, and its power consumption is low.
  • the signal received by the terminal device using the wake-up circuit can be called a wake-up signal (wake up signal/radio, WUS/WUR). It can be understood that the wake-up circuit is only named for differentiation, and its specific naming does not limit the protection scope of the present application. For example, without loss of generality, the wake-up circuit can also be described as the first circuit (or first module).
  • the signal received by the terminal device using the wake-up circuit may be said to be transmitted on the wake-up link, where the wake-up link characterizes the It is a connection relationship between equipment and network equipment. It is a logical concept rather than a physical entity. It can be understood that the wake-up link is only named for differentiation, and its specific naming does not limit the protection scope of this application. Without loss of generality, the wake-up link is described as the first link in the embodiment of this application. It should also be understood that the wake-up signal is only an example of naming, and this application does not limit its naming.
  • Main circuit It is also called the main receiver or main module. It can be understood as the circuit used by the terminal device when transmitting data normally, or the circuit used by the terminal device when transmitting data in the connected state. When the terminal device uses the main circuit to transmit data, it consumes a lot of power. It can be understood that the main circuit is only named for differentiation, and its specific naming does not limit the protection scope of the present application. For example, without loss of generality, the main circuit can also be described as a second circuit (or second module). The following is a unified description of the main circuit.
  • the signal received by the terminal device using the main circuit can be said to be transmitted on the main link.
  • the main link represents a connection relationship between the terminal device and the network device and is a logical concept rather than a physical entity. It can be understood that the main link is only named for differentiation, and its specific naming does not limit the protection scope of this application. Without loss of generality, the main link is described as the second link in the embodiment of this application.
  • the signal transmitted by the terminal device using the wake-up circuit is recorded as a wake-up signal
  • the signal transmitted by the terminal device using the main circuit is recorded as a data signal
  • Figure 2 is a schematic diagram of the main circuit and the wake-up circuit.
  • the terminal device can receive (or detect) the wake-up signal through the wake-up circuit, and the terminal device can receive the data signal through the main circuit.
  • the end device receives a wake-up signal through a wake-up circuit. If the terminal device does not detect the wake-up signal, it will continue to use the wake-up circuit to receive the wake-up signal, and the main circuit can be in a closed state (or sleep state); if the terminal device detects the wake-up signal, it will trigger the wake-up of the main circuit, that is, the main circuit will be in/ Switch to the on state (or working state, or active state). After the main circuit is turned on, the terminal equipment can transmit data signals through the main circuit.
  • On off key (OOK) modulation Use whether the signal is sent or not to modulate the information.
  • the corresponding wake-up circuit can use the envelope detection method to receive the signal.
  • OOK modulation technology can achieve demodulation with a very low complexity receiver, so it can achieve the low power consumption goal of the wake-up circuit.
  • the wake-up signal can be modulated using OOK. It can be understood that the wake-up signal can also adopt other modulation methods, such as frequency shift keying (FSK) modulation, and there is no restriction on this.
  • FSK frequency shift keying
  • each bit (that is, the encoded bit) can correspond to a symbol.
  • a symbol can also be called a chip or other names. There is no restriction here.
  • the signal is recorded as an ON signal; if no signal is emitted within a symbol, the signal is recorded as an OFF signal.
  • ON signal indicates that the information bit is "1”
  • OFF signal indicates that the information bit is is "0”.
  • the OOK symbols mentioned below represent symbols obtained by using OOK modulation.
  • the OOK symbol may be an ON signal, for example, or it may be an OFF signal.
  • the OOK symbol can also be called the OOK signal.
  • the OOK symbol is used to describe it below.
  • Figure 3 is a schematic waveform diagram when the signal adopts OOK modulation.
  • the waveform shown in Figure 3 can represent four "0100" bit, that is, the first one is an OFF signal, the second one is an ON signal, and the third and fourth bits are both OFF signals.
  • communication systems generally use a certain frequency for transmission, and the transmission signal needs to be modulated on the carrier wave.
  • the receiving end detects the envelope (or energy) of the received signal and determines whether the OOK symbol corresponds to bit "0" or bit "1", thereby completing demodulation.
  • the waveform shown in Figure 3 may become the waveform shown in Figure 4 at the receiving end.
  • Figure 4 is a schematic diagram of the waveform of the signal after passing through the channel.
  • the terminal device can compare the received signal level value with a threshold (the threshold is shown as a dotted line in Figure 4). For example, if the signal level value received by the terminal device is greater than the threshold, it means that the signal corresponds to the bit "1"; if the signal level value received by the terminal device is less than the threshold, it means that the signal corresponds to the bit "0" ". But setting the threshold is more difficult. For example, if the threshold selection is inappropriate, it may lead to demodulation errors. To solve this problem, one possible way is to use Manchester encoding.
  • Manchester encoding It is a bi-phase encoding that can represent bit “0” or bit “1” through high and low level conversion. For example, through Manchester encoding, the original bit “0” can be encoded as bit “10", and the original bit “1” can be encoded as bit "01". To distinguish, the original bit encoded bits, such as bit "10” and " 01", which can be called coded bits. When sending a signal, the sender can use 2 OOK symbols to send 1 bit of original information.
  • the original bit “0” is encoded as bit “10” and the original bit “1” is encoded as bit “01"
  • the original bit "0" Corresponding to an ON signal followed by an OFF signal
  • the original bit “1” corresponds to an OFF signal followed by an ON signal.
  • the receiving end demodulates the Manchester-encoded signal, it can compare the relative size of the signal power (or signal amplitude) in two adjacent OOK symbols. If the signal power (or signal amplitude) in the previous OOK symbol is greater than the signal power (or signal amplitude) in the following OOK symbol, the received information bit is considered to be "0", otherwise it is considered to be the received information bit. is "1". In this way, you can avoid choosing an absolute threshold to make a decision.
  • the signal can be generated based on an orthogonal frequency division multiplexing (OFDM) transmitter, that is, the OFDM transmitter can be used to modulate the signal.
  • OFDM orthogonal frequency division multiplexing
  • One possible way is to transmit one OOK symbol within the length of one OFDM symbol, or one OOK symbol occupies one OFDM symbol. For example, if you want to send an ON signal within the length of an OOK symbol, the transmitter can send a specific signal so that the contour of the signal within the length of the OOK symbol is as square wave as possible; if you want to send an ON signal within the length of an OOK symbol, When sending the OFF signal, the sending end can turn off the signal for the length of an OOK symbol.
  • Figure 5 is a schematic diagram of a waveform of a signal using Manchester encoding.
  • the original bits are "0 0 1 0 0 1 0 1 1 0".
  • the original bit "0” is encoded as "10”
  • the original bit "1” is encoded as "01”.
  • the coded bits are "10 10 01 10 10 01 10 01 01 10", and the waveform is shown in Figure 5.
  • the time length corresponding to each coded bit can be considered as the length of one OFDM symbol, that is, one OOK symbol is transmitted within the length of one OFDM symbol, or one OOK symbol occupies one OFDM symbol.
  • the receiving end can compare the relative magnitudes of the signal power (or signal amplitude) in two adjacent OOK symbols, and determine the demodulated information bits based on the comparison results.
  • Another possible way is to transmit at least two OOK symbols within the length of one OFDM symbol, or at least two OOK symbols occupy one OFDM symbol.
  • Figure 6 is another schematic diagram of a waveform of a signal using Manchester encoding.
  • the original bit is "0 0 0 1”.
  • the original bit "1” is encoded as "01”
  • the encoded bit after Manchester encoding is "10" 10 10 10 01”
  • the waveform is shown in Figure 6.
  • 8 OOK symbols are sent, which are ON signal-OFF signal-ON signal-OFF signal-ON signal-OFF signal-OFF signal-OFF signal-ON Signal.
  • the receiving end can compare the relative magnitudes of the signal power (or signal amplitude) of two adjacent OOK symbols, and determine the demodulated information bits based on the comparison results.
  • one OOK symbol can be transmitted within the length of one OFDM symbol, or at least two OOK symbols can be transmitted within the length of one OFDM symbol, which is not limited. Furthermore, whether one OOK symbol or at least two OOK symbols are transmitted within the length of one OFDM symbol, it is not limited to this Manchester encoding.
  • OOK symbols based on Manchester coding first perform envelope detection during demodulation, and then compare the signal power (or signal amplitude) of two adjacent OOK symbols. Through analysis, it can be seen that under different signal-to-noise ratios, the impact of noise on the signal waveform is different.
  • Figure 7 is a schematic diagram of a noise-free signal and a noisy signal in a high signal-to-noise ratio scenario. As shown in Figure 7, after superimposing noise, it is still relatively simple to distinguish whether the OOK symbol is an ON signal or an OFF signal.
  • Figure 8 is a schematic diagram of a noise-free signal and a noisy signal in a low signal-to-noise ratio scenario. As shown in Figure 8, after superimposing noise, it is difficult to distinguish whether the OOK symbol is an ON signal or an OFF signal.
  • this application provides a solution that can improve the solution of OOK symbols by improving the signal-to-noise ratio within the target time period. Adjustability, where the target time period can be considered as the length of one OOK symbol.
  • One possible implementation is to receive the wake-up signal on N time units, and the modulation method of the wake-up signal is OOK modulation; demodulate the wake-up signal based on the time information of the wake-up signal on each of the N time units, where, The time length occupied by the wake-up signal in at least one time unit among the N time units is less than the length of the time unit.
  • the signal energy can be concentrated in a shorter period of time and the signal-to-noise ratio in a short period of time can be improved. This improves the demodulation performance of the wake-up signal.
  • the information indicated by the indication information is called information to be indicated.
  • the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated, etc.
  • the information to be indicated may also be indirectly indicated by indicating other information, where there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance.
  • the indication of specific information can also be achieved by means of a pre-agreed (for example, protocol stipulated) arrangement order of each piece of information, thereby reducing the indication overhead to a certain extent.
  • Figure 9 is a schematic diagram of a communication method 900 provided by an embodiment of the present application.
  • Method 900 may include the following steps.
  • the terminal device receives a wake-up signal from the network device in N time units.
  • the wake-up signal includes N1 first signals and N2 second signals.
  • the first signal indicates the first bit value and the second signal indicates the second bit value.
  • the signal power of the first signal is not 0, the signal power of the second signal is 0, each of the N1 first signals occupies one of the N time units, and the N2 second signals Each second signal occupies one time unit among the N time units.
  • the portion of the first signal whose signal power is not 0 occupies a time length greater than 0 and less than or equal to time in at least one time unit among the N time units.
  • the length of the unit, N is an integer greater than 1
  • the network device sends the wake-up signal over N time units.
  • the wake-up signal represents a signal received by the terminal device using the wake-up circuit. That is, any signal received by the terminal device using the wake-up circuit can be called a wake-up signal. As an example, the wake-up signal is used to wake up at least one terminal device or at least a group of terminal devices.
  • a time unit can be a symbol (symbol) or several symbols, or one or more mini-slots (mini-slots), or one or more time slots (slots), or one or more subframes (subframes). ), or one or more milliseconds, etc.
  • Time units can also be called time domain units. It can be understood that the time unit sizes listed above are only for the convenience of understanding the solution of the present application, and do not limit the protection scope of the embodiments of the present application.
  • the first signal indicates a first bit value
  • the second signal indicates a second bit value
  • the signal power of the first signal is not 0, and the signal power of the second signal is 0.
  • the modulation method of the wake-up signal is OOK modulation.
  • the signal power of the first signal is not 0, which means that the signal amplitude of the first signal is not 0, that is, a signal is sent within a time unit (such as an OOK symbol).
  • the signal power of the second signal is 0, which means that the signal amplitude of the second signal is 0, that is, no signal is sent within a time unit (such as an OOK symbol).
  • the first signal may also be called an ON signal
  • the second signal may also be called an OFF signal.
  • the first bit value is “1” and the second bit value is “0".
  • the first bit value is "0" and the second bit value is "1".
  • the wake-up signal includes two first signals and two second signals, and the signals in the first time unit and the third time unit are the first signals.
  • the first signal The first bit value indicated is "1"; the signals in the second time unit and the fourth time unit are second signals, and the second bit value indicated by the second signal is "0".
  • each of the N1 first signals occupies one time unit among the N time units
  • each of the N2 second signals occupies one time unit among the N time units.
  • the time length of a second signal is the length of a time unit
  • the time length of a first signal is the length of a time unit, that is, a first signal is transmitted on each time unit of N time units or A second signal.
  • the signal power of the second signal and the first signal is not 0. Therefore, the first signal includes a part whose power is not 0.
  • the first signal also includes a part with 0 power.
  • the embodiment of the present application mainly takes the time length of a first signal as the length of a time unit as an example for illustrative description, and there is no limitation on this.
  • the time length of the first signal can also be defined as: the time length occupied by the part whose power is not 0 in one time unit.
  • the time length of the first signal is defined as: the time length occupied by the part whose power is not 0 in a time unit, if the time length occupied by the part whose power is not 0 in a time unit is less than the time The length of the unit, then a first signal and a signal with power 0 can be sent in a time unit.
  • the network device can send a first signal in a part of the time unit in a time unit. No signal may be sent during the remaining time period; if the length of time occupied by the part with non-zero power in a time unit is equal to the length of the time unit, then a first signal can be sent in a time unit. In other words, the network device A first signal can be sent over one time unit.
  • the length of the second signal can be equal to the length of a time unit, that is, there is no power in a time unit.
  • Send a signal a signal.
  • the length of the second signal may be greater than or equal to the length of one time unit.
  • the length of the second signal may be greater than or equal to the length of one time unit.
  • the length of the first signal is the length of time occupied by the part where the power is not 0 in a time unit
  • the length of the second signal may be the part where the power is 0 in the time unit and another time The total length of the unit.
  • the following takes the time length of a first signal as the length of a time unit as an example for illustrative description.
  • the time length occupied by the part of the first signal whose signal power is not 0 in at least one time unit among the N time units is greater than 0 and less than or equal to the length of the time unit. Based on this, it can be seen that the first signal may include a part with a power of 0 and a part with a power that is not 0.
  • a first possible implementation is that the time length occupied by the part of the first signal whose signal power is not 0 in at least one time unit among the N time units is greater than 0 and less than the length of the time unit.
  • the first signal includes a part with power 0 and a part with power not 0, and the time length occupied by the part with power not 0 in the first signal is greater than 0 and less than the length of the time unit, correspondingly , the time length occupied by the part with power 0 in the first signal is greater than 0 and less than the length of the time unit.
  • the sum of the time length occupied by the part with power 0 in the first signal and the time length occupied by the part with power not being 0 is equal to the length of the time unit.
  • Figure 10 is a schematic diagram of ISI caused by multipath delay.
  • the time span of the signal received by the receiving end is longer than the time span of the signal sent by the transmitting end.
  • the tail of the first signal may fall in the next time unit, thus affecting signal demodulation.
  • the time length occupied by the part whose power is not 0 in the first signal is greater than 0 and less than the length of the time unit, as shown in (2) in Figure 10, because the part whose power is not 0 in the first signal is in a The time length in the time unit is shortened, so the tail of the part of the first signal whose power is not 0 can fall within the same time unit and will not affect the signal in the next time unit.
  • the time length of the part of the first signal with non-zero power in a time unit is less than the length of the time unit, which can be equivalently regarded as adding a guard interval to the time domain, thus reducing or even eliminating channel overload. ISI caused by path effect.
  • the second possible implementation is that the time length occupied by the part of the first signal whose signal power is not 0 in at least one time unit among the N time units is greater than 0 and equal to the length of the time unit.
  • the first signal only includes the part where the power is not 0, that is, the time length occupied by the part of the first signal where the power is not 0 is equal to the length of the time unit, and the part of the first signal where the power is 0
  • the length of time occupied is equal to 0.
  • Figure 11 is a schematic diagram of the first signal and the second signal on one time unit.
  • the wake-up signal includes a first signal and a second signal.
  • the first signal occupies one of the two time units, and the second signal occupies one of the two time units.
  • the first signal only includes the part where the power is not 0, and the time length occupied by the part where the power is not 0 in the first signal is equal to the length of the time unit.
  • the first signal includes a part with a power of 0 and a part with a power that is not 0.
  • the time length occupied by the part of the first signal with a power that is not 0 is greater than 0 and less than the time unit. length.
  • the terminal device demodulates the wake-up signal.
  • the terminal device demodulates the wake-up signal based on time information of the first signal.
  • the time information of the first signal is used to determine the length of time occupied by the part of the first signal whose power is not 0 in one time unit.
  • the terminal device may demodulate the wake-up signal based on the length of time occupied by the part of the first signal whose power is not 0 in one time unit.
  • the terminal device can choose to demodulate the corresponding time interval. If the terminal device does not know the length of time occupied by the non-zero power part of the first signal in a time unit, the terminal device will interpret the entire time unit, which will introduce more noise energy.
  • the receiving end compares the signal energy in two time units for demodulation.
  • represents the ratio of the length of time occupied by the part where the signal power is not 0 in the first signal to the length of the time unit, which can be called the duty cycle, and the value of ⁇ is [0,1].
  • E S represents the average power of the signal in the part where the power is not 0.
  • N represents the average power of noise.
  • T represents the length of the time unit.
  • the terminal device when the terminal device knows the length of time occupied by the non-zero power part of the first signal in a time unit, the terminal device can only process all signals (length T) in a time unit. , the signal-to-noise ratio is higher.
  • Figure 12 is a schematic diagram of the signal-to-noise ratio under various conditions.
  • (2) in Figure 12 means that the time length occupied by the part with non-zero power in a time unit in the first signal is less than the length of the time unit, and the terminal device knows that the part with non-zero power in the first signal is in a time unit.
  • the time information of the first signal includes at least one of the following: the ratio of the length of time occupied by the part where the signal power is not 0 in the first signal to the length of the time unit, the proportion of the part where the signal power is not 0 in the first signal The length of time occupied by the part, the ratio of the length of time occupied by the part with signal power of 0 in the first signal to the length of the time unit, the length of time occupied by the part of the first signal with signal power of 0.
  • the time information of the first signal is the ratio of the length of time occupied by the part where the signal power is not 0 in the first signal to the length of the time unit. Based on this, the terminal device may determine, based on the ratio of the length of time occupied by the part in the first signal that the signal power is not 0, to the length of the time unit, and the length of the time unit, that the part in the first signal in which the signal power is not 0 is in The length of time in a time unit.
  • the ratio of the length of time occupied by the part where the signal power is not 0 in the first signal to the length of the time unit is recorded as the duty cycle, and the duty cycle is greater than 0 and less than 1 or equal to 1.
  • the duty cycle is greater than 0 and less than 1 or equal to 1.
  • the length of the OFDM symbol is L (the specific length can be determined according to the size of the subcarrier interval), and the duty cycle is ⁇ , then the length of time occupied by the part with power not 0 in the first signal is ⁇ L, and in the first signal The length of time occupied by the part with power 0 is (1- ⁇ ) ⁇ L, and the length of time occupied by the second signal is L.
  • the time length of the first signal is defined as: the time length occupied by the part with non-zero power in a time unit, then it can also be described as: the length of the first signal is ⁇ L, and the length of the second signal is (2- ⁇ ) ⁇ L.
  • the proportion of the time length occupied by the part of the signal power that is not 0 in each of the N1 first signals is the same as the length of the time unit, that is, the duty of each time unit corresponding to the first signal Than the same.
  • Example 2 The time information of the first signal is the time length occupied by the part of the first signal where the signal power is not 0. Based on this, the terminal device can directly determine the length of time occupied by the part of the first signal whose signal power is not 0 in one time unit.
  • the time information of the first signal is the ratio of the length of time occupied by the part where the signal power is 0 in the first signal to the length of the time unit. Based on this, the terminal device can determine, based on the ratio of the length of time occupied by the part with signal power of 0 in the first signal to the length of the time unit, and the length of the time unit, that the part of the first signal with signal power of 0 is within a time period. The length of time spent in the unit.
  • the sum of the length of time occupied by the part with signal power of 0 in the first signal in a time unit and the length of time occupied by the part of the first signal with non-zero signal power in a time unit is the length of the time unit, Therefore, based on the length of time that the portion of the first signal with signal power of 0 occupies in one time unit, the length of time that the portion of the first signal with signal power that is not 0 occupies in one time unit can be determined.
  • the ratio of the length of time occupied by the part with signal power of 0 in the first signal to the length of the time unit is represented by ⁇ , ⁇ is greater than 0 or equal to 0, and ⁇ is less than 1 or equal to 1.
  • is greater than 0 or equal to 0
  • is less than 1 or equal to 1.
  • the time length of the first signal is defined as: the time length occupied by the part whose power is not 0 in a time unit, then it can also be described as: the length of the first signal is (1- ⁇ ) ⁇ L, and the The length of the second signal is (1+ ⁇ ) ⁇ L.
  • the length of time occupied by the portion of the signal power of 0 in each of the N1 first signals is the same as the length of the time unit.
  • the time information of the first signal is the time length occupied by the part of the first signal where the signal power is 0. Based on this, the terminal device can directly determine the length of time occupied by the part with signal power of 0 in the first signal in one time unit.
  • the sum of the length of time occupied by the part with signal power of 0 in the first signal in a time unit and the length of time occupied by the part of the first signal with non-zero signal power in a time unit is the length of the time unit, Therefore, based on the length of time that the portion of the first signal with signal power of 0 occupies in one time unit, the length of time that the portion of the first signal with signal power that is not 0 occupies in one time unit can be determined.
  • Examples 1 to 4 describes each piece of information separately, which is not limited.
  • the above pieces of information can also be used in combination.
  • two examples are listed below.
  • the time information of the first signal includes the ratio of the length of time occupied by the part in the first signal in which the signal power is not 0 to the length of the time unit, and the length of time occupied by the part in the first signal in which the signal power is 0 Proportional to the length of the time unit. Based on this, the terminal device can determine the proportion of the part of the first signal whose signal power is not 0 that occupies in one time unit based on the ratio of the length of time occupied by the part whose signal power is not 0 in the first signal to the length of the time unit.
  • the length of time and based on the ratio of the length of time occupied by the part with signal power of 0 in the first signal to the length of the time unit, the proportion of the part of the first signal with signal power of 0 in one time unit may be determined. length of time.
  • the time information of the first signal includes the time length occupied by the part of the first signal in which the signal power is not 0, and the time length occupied by the part in the first signal in which the signal power is 0. Based on this, the terminal device can directly determine the length of time that the part of the first signal with signal power that is not 0 occupies in a time unit, and the time that the part of the first signal with signal power that is 0 occupies in a time unit. length.
  • the time information of the first signal includes at least the following two items: the ratio of the length of time occupied by the part where the signal power is not 0 in the first signal to the length of the time unit, the proportion of the part of the first signal where the signal power is not 0
  • the length of time occupied, the ratio of the length of time occupied by the part with signal power of 0 in the first signal to the length of the time unit, the length of time occupied by the part of the first signal with signal power of 0, that is, the above information All can be used in combination.
  • the network device can determine the time information of the first signal and then notify the terminal device. For example, the network device can configure a duty cycle and send the configured duty cycle to the terminal device, and then the terminal device can learn based on the duty cycle that the portion of the first signal whose power is not 0 accounts for a time unit. length of time.
  • method 900 further includes: the network device sends indication information, where the indication information indicates the time information of the first signal.
  • the terminal device receives the instruction information from the network device, and based on this, the terminal device can determine the time information of the first signal based on the instruction of the network device.
  • the indication information may be carried in radio resource control (RRC) signaling.
  • RRC radio resource control
  • the indication information can be configured through the system information block (SIB).
  • the indication information is an explicit indication, that is, the indication information directly indicates the time information of the first signal. Based on this method, the terminal device can directly determine the time information of the first signal based on the indication information.
  • the indication information is an implicit indication, that is, the indication information can indicate other information (for example, recorded as information #A).
  • the terminal device can indirectly determine the time information of the first signal based on the indication information. For example, the terminal device can directly determine the information #A based on the indication information, and determine the time information of the first signal based on the information #A.
  • the time information of the first signal has an association relationship with the information #A
  • the terminal device can determine the time information of the first signal based on the information #A and the association relationship.
  • information #A is the period value of the synchronization signal.
  • the time information of the first signal has a correlation relationship with the period value of the synchronization signal.
  • the terminal device can determine the time information of the first signal based on the period value of the synchronization signal and the correlation relationship.
  • the network device sends indication information to the terminal device.
  • the indication information indicates the period value of the synchronization signal, or the indication information is the period value of the synchronization signal.
  • the terminal device can determine the period value of the synchronization signal based on the indication information.
  • the terminal can determine the time information of the first signal based on the period value of the synchronization signal and the correlation between the time information of the first signal and the period value of the synchronization signal.
  • the network side or the protocol may predefine (or support) the length of time occupied by the parts of the at least two first signals in which the signal power is not 0.
  • the following takes the time information of the first signal as the duty cycle as an example for illustrative explanation.
  • the network side or protocol can predefine (or support) at least two duty cycles.
  • the network device can select the appropriate duty cycle and notify the terminal device.
  • the shorter the length of the first signal the more concentrated the energy, the higher the equivalent signal-to-noise ratio, and the better the demodulation performance in theory.
  • the shorter the length of the first signal the more sensitive it is to residual timing bias. Therefore, it is necessary to consider the balance between "energy concentration” and "anti-time bias". It is considered that the size of the time offset depends on the clock accuracy of the WUR on the one hand and the interval (that is, the period value) of the synchronization signal on the other hand.
  • the network device can flexibly select the duty cycle and the period value of the synchronization signal, thereby balancing the overhead of the synchronization signal and the coverage performance of the wake-up signal.
  • different duty cycles can be applied to different networks Deployment scenarios, that is, network equipment can select an appropriate duty cycle based on actual communication conditions.
  • the network device does not need to be configured.
  • the terminal device can learn the first signal in advance. The length of time in the signal that the signal power is not 0.
  • method 900 further includes: the network device sending configuration information, where the configuration information includes: an offset value in a time unit of a part of the first signal whose signal power is not 0, or the signal power of the first signal is The offset value of the 0 part in the time unit. Accordingly, the terminal device receives configuration information from the network device.
  • the network device can configure the offset value of the part of the first signal with power that is not 0 relative to the time unit, or configure the offset value of the part of the first signal with power of 0 relative to the time unit, so that the terminal
  • the device can learn the position of the part of the first signal whose power is not 0 in the time unit based on the offset value, thereby determining the time interval corresponding to the demodulation, thereby improving the signal-to-noise ratio of the signal in the time interval corresponding to the demodulation, thereby improving Demodulation performance.
  • the offset value of the part of the first signal whose signal power is not 0 in the time unit is any of the following: the starting position of the part of the first signal whose signal power is not 0 and the starting position of the time unit.
  • the offset value between the start position of the part where the signal power is not 0 in the first signal and the end position of the time unit, the end position and time of the part where the signal power is not 0 in the first signal The offset value between the start position of the unit, the end position of the part of the first signal where the signal power is not 0, and the end position of the time unit.
  • the time length occupied by the part of the first signal whose power is not 0 is greater than 0 and less than the length of the time unit, and the signal in the first signal
  • the offset value between the starting position of the part with non-zero power and the starting position of the time unit is 0.
  • the offset value of the part with signal power of 0 in the first signal on the time unit is any of the following: the starting position of the part with signal power of 0 in the first signal and the starting position of the time unit.
  • Offset value offset value between the starting position of the part where the signal power is 0 in the first signal and the end position of the time unit, the end position of the part where the signal power is 0 in the first signal and the start of the time unit.
  • the time length occupied by the part with power 0 in the first signal is greater than 0 and less than the length of the time unit, and the signal power in the first signal is The offset value between the end position of the 0 part and the end position of the time unit is 0.
  • the above network device indicating the offset value to the terminal device is an exemplary description and is not limiting.
  • it can also be predefined, such as standard predefined offset values.
  • the network device generates the first signal.
  • the duty cycle as an example, when the network device generates the first signal with different duty cycles, and the waveform of the wake-up signal is an OFDM waveform, a possible implementation method is to first generate an ideal square wave signal, and then Based on the least squares principle, the OFDM signal most similar to the ideal square wave signal is obtained.
  • IFFT inverse fast fourier transform
  • the argmax function means to obtain the maximum value of the formula following argmax.
  • F represents the N IFFT ⁇ K matrix intercepted by the IFFT matrix, and K is the length of the frequency domain signal sequence.
  • b target represents the ideal signal, that is, b m .
  • the superscript H represents the conjugate transpose, for example, A H represents the conjugate transpose of the matrix (or vector) A.
  • the encoding method of the wake-up signal may adopt Manchester encoding, or may not adopt Manchester encoding, without limitation. They are explained below.
  • one OOK symbol can carry 1 bit of information.
  • the network device shortens the length of the part with non-zero power in the first signal, that is, the part with non-zero power in the first signal occupies part of an OOK symbol; when receiving the wake-up signal, the terminal device can select each OOK symbol During part of the time period, the received energy is compared with a threshold to determine whether the received signal is the first signal or the second signal, thereby completing demodulation.
  • 8 OOK symbols can carry 8 bits of information, and the 8 bits of information are as follows: 10100110.
  • (1) in Figure 10 is a schematic diagram in which the length of the part of the first signal in which the power is not 0 is not shortened, that is, the part in the first signal in which the power is not 0 occupies one OOK symbol.
  • (2) in Figure 10 is a schematic diagram of shortening the length of the part of the first signal where the power is not 0, that is, the part of the first signal where the power is not 0 occupies part of the time of an OOK symbol.
  • a possible implementation method can be to shorten the length of the part with power not 0 in the first signal by half, that is, the part with power not 0 in the first signal occupies one OOK The first half of the symbol; when the terminal device receives a signal, it can select the first half of each OOK symbol and compare the received energy with a threshold to determine whether the received signal is the first signal or the second signal.
  • Complete demodulation It can be understood that the part with non-zero power in the first signal occupying the first half of an OOK symbol is only an exemplary illustration and is not limited to this.
  • the duty cycle is greater than 0 and less than 1 or equal to 1.
  • the wake-up signal is encoded using Manchester encoding.
  • OOK modulation of a signal for example, two OOK symbols can carry 1 bit of original information.
  • OOK symbols can carry 4 bits of original information. It is assumed that the original bit "0" is encoded as "10" and the original bit "1” is encoded as " 01", then the 4-bit original information is: 0010. For other related descriptions, please refer to Case 1 and will not be repeated here.
  • the encoding method of the wake-up signal can also be Manchester encoding.
  • the waveform of the wake-up signal is an OFDM waveform.
  • the general principle of OFDM the general operation of the transmitter can at least include: modulation of original bits, subcarrier mapping, IFFT, and adding cyclic prefix (CP).
  • General operations at the receiving end can at least include: removing CP and FFT, then performing channel estimation, frequency domain equalization (FDE) processing, subcarrier de-mapping, and then demodulation to obtain the original bits.
  • FDE frequency domain equalization
  • the operation of the transmitter can refer to the above description.
  • the operations at the receiving end may include: CP removal, envelope detection, and then demodulation to obtain the original bits.
  • one OFDM symbol may correspond to one time unit, such as one OFDM symbol corresponding to one OOK symbol.
  • Figure 13 is a schematic diagram in which the waveform of the wake-up signal is an ODFM waveform.
  • each OFDM symbol includes a CP, and the CP can be located at the starting position of each OFDM symbol. It is not marked in Figure 13 for simplicity.
  • one OFDM symbol corresponds to at least two time units, for example, one OFDM symbol corresponds to at least two OOK symbols.
  • the network device generates the first signal with a specific duty cycle.
  • the ideal waveform b m [1,0,1,0,0,1,1,0] T can be generated first, and then based on The least squares principle is used to obtain the transmitted signal.
  • FIG. 14 is another schematic diagram in which the waveform of the wake-up signal is an ODFM waveform.
  • transmission includes receiving and/or sending.
  • transmitting a signal may include receiving a signal and/or transmitting a signal.
  • receiving can also be replaced by “detecting” or “monitoring”.
  • receiving a wake-up signal can also be replaced by “detecting a wake-up signal” or “monitoring a wake-up signal.”
  • the terminal device can be replaced by a receiving end device, and the receiving end device can It is a terminal device or a network device; the network device can be replaced by a sending device, and the sending device can be a terminal device or a network device.
  • the terminal device can be replaced by "first terminal device”, and "network device” can be replaced by "second terminal device”.
  • the methods and operations implemented by the terminal device can also be implemented by components (such as chips or circuits) that can be implemented by the terminal device; in addition, the methods and operations implemented by the network device can also be implemented by the network device. It can be implemented by components (such as chips or circuits) of network equipment, without limitation.
  • embodiments of the present application also provide corresponding devices, and the devices include modules for executing corresponding modules in each of the above method embodiments.
  • the module can be software, hardware, or a combination of software and hardware. It can be understood that the technical features described in the above method embodiments are also applicable to the following device embodiments.
  • Figure 15 is a schematic diagram of a communication device 1500 provided by an embodiment of the present application.
  • the device 1500 includes a transceiver unit 1510 and a processing unit 1520.
  • the transceiver unit 1510 can be used to implement corresponding communication functions.
  • the transceiver unit 1510 may also be called a communication interface or communication unit.
  • the processing unit 1520 may be used to process data or information.
  • the device 1500 also includes a storage unit, which can be used to store instructions and/or data, and the processing unit 1520 can read the instructions and/or data in the storage unit, so that the device implements each of the foregoing method embodiments. .
  • the device 1500 can be used to perform the actions performed by the terminal device in each of the above method embodiments.
  • the device 1500 can be a terminal device or a component of the terminal device, and the transceiver unit 1510 is used to perform
  • the processing unit 1520 is configured to perform the processing related operations on the terminal device side in the above method embodiment.
  • the first possible implementation, the transceiver unit 1510 is used to receive wake-up signals from the network device on N time units.
  • the wake-up signals include N1 first signals and N2 second signals, and the first signal indicates the first bit. value, the second signal indicates a second bit value, the signal power of the first signal is not 0, the signal power of the second signal is 0, each of the N1 first signals occupies one of the N time units Time unit, each second signal among the N2 second signals occupies one time unit among the N time units.
  • the first signal includes a part with a power of 0 and a part with a power that is not 0.
  • the signal power in the first signal is not
  • the transceiver unit 1510 is also configured to receive indication information from the network device.
  • the indication information indicates the time information of the first signal.
  • the time information of the first signal includes at least one of the following: the signal power in the first signal is not 0.
  • the ratio of the length of time occupied by the part to the length of the time unit, the length of time occupied by the part of the first signal in which the signal power is not 0, the length of time occupied by the part in the first signal in which the signal power is 0 and the length of the time unit The proportion of the length, the length of time occupied by the part where the signal power is 0 in the first signal.
  • the indication information is period value configuration information of the synchronization signal, and the period value of the synchronization signal has a correlation relationship with the time information of the first signal.
  • the transceiver unit 1510 is also configured to periodically receive a synchronization signal from the network device.
  • the period value of the synchronization signal has a correlation relationship with the time information of the first signal.
  • the time information of the first signal includes at least one of the following: The ratio of the length of time occupied by the part where the signal power is not 0 in the first signal to the length of the time unit, the length of time occupied by the part of the first signal where the signal power is not 0, the length of time occupied by the part where the signal power is not 0 in the first signal.
  • the transceiver unit 1510 is also configured to receive configuration information from the network device.
  • the configuration information includes: the offset value of the part of the first signal whose signal power is not 0 in the time unit, or the signal in the first signal.
  • the offset value of the part with a signal power of 0 on a time unit, where the offset value of the part of the first signal with a signal power that is not 0 on a time unit is any of the following:
  • the signal power of the first signal is not 0
  • the second possible implementation manner, the transceiver unit 1510 is used to receive indication information from the network device.
  • the indication information indicates the time information of the first signal.
  • the part of the first signal whose signal power is not 0 is at least 0 in N time units.
  • the time length on a time unit is greater than 0 and less than or equal to the length of the time unit.
  • the time information of the first signal includes at least one of the following: the time length occupied by the part of the first signal where the signal power is not 0 and the time unit
  • the length of time occupied by the part that is 0; the transceiver unit 1510 is also used to receive wake-up signals from the network device on N time units.
  • the wake-up signals include N1 first signals and N2 second signals.
  • the first signal indicates The first bit value
  • the second signal indicates the second bit value
  • the signal power of the first signal is not
  • the signal power of the second signal is
  • each of the N1 first signals occupies N time units A time unit in
  • each second signal among the N2 second signals occupies one time unit among the N time units
  • N is an integer greater than 1
  • N1 and N2 are integers greater than 0 or equal to 0, and
  • N1 +N2 N.
  • the indication information is period value configuration information of the synchronization signal, and the period value of the synchronization signal has a correlation relationship with the time information of the first signal.
  • the transceiver unit 1510 is also configured to receive configuration information from the network device.
  • the configuration information includes: the offset value of the part of the first signal whose signal power is not 0 in the time unit, or the signal in the first signal.
  • the offset value of the part with a signal power of 0 on a time unit, where the offset value of the part of the first signal with a signal power that is not 0 on a time unit is any of the following:
  • the signal power of the first signal is not 0
  • the device 1500 can implement steps or processes corresponding to those executed by the terminal device in the method embodiments of the embodiments of the present application.
  • the device 1500 may include a method for executing the method executed by the terminal device in the method embodiments of the embodiments of the present application. unit. The specific process of each unit performing the above corresponding steps has been described in detail in each of the above method embodiments, and will not be described again for the sake of brevity.
  • the device 1500 can be used to perform the actions performed by the network device in the above method embodiments.
  • the device 1500 can be a network device or a component of the network device, and the transceiver unit 1510 is used to To perform transceiver-related operations on the network device side in the above method embodiment, the processing unit 1520 is configured to perform processing-related operations on the network device side in the above method embodiment.
  • the first possible implementation method the processing unit 1520 is used to generate a wake-up signal; the transceiver unit 1510 is used to Send a wake-up signal on the element, the wake-up signal includes N1 first signals and N2 second signals, the first signal indicates the first bit value, the second signal indicates the second bit value, the signal power of the first signal is not 0, and the The signal power of the two signals is 0, each of the N1 first signals occupies one of the N time units, and each of the N2 second signals occupies one of the N time units.
  • a time unit, the first signal includes a part with power 0 and a part with power not 0, and the time length of the part with signal power not 0 in the first signal in at least one time unit among the N time units is greater than 0 and less than
  • the length of the time unit, N is an integer greater than 1
  • the transceiver unit 1510 is also configured to send indication information.
  • the indication information indicates the time information of the first signal.
  • the time information of the first signal includes at least one of the following: the portion of the first signal in which the signal power is not 0.
  • the indication information is period value configuration information of the synchronization signal, and the period value of the synchronization signal has a correlation relationship with the time information of the first signal.
  • the transceiver unit 1510 is also configured to periodically send a synchronization signal.
  • the period value of the synchronization signal has a correlation relationship with the time information of the first signal.
  • the time information of the first signal includes at least one of the following: in the first signal The ratio of the length of time occupied by the part where the signal power is not 0 to the length of the time unit, the length of time occupied by the part of the first signal where the signal power is not 0, the proportion of the part of the first signal where the signal power is 0 The ratio of the length of time to the length of the time unit, the length of time occupied by the part of the first signal where the signal power is 0.
  • the transceiver unit 1510 is also configured to send configuration information.
  • the configuration information includes: the offset value in the time unit of the part of the first signal whose signal power is not 0, or the part of the first signal whose signal power is 0.
  • the offset value of the part in the time unit of the first signal, where the offset value of the part in the first signal whose signal power is not 0 in the time unit is any of the following: The offset value between the start position and the start position of the time unit, the offset value between the start position of the part where the signal power is not 0 in the first signal and the end position of the time unit, the signal power in the first signal.
  • the offset value between the end position of the part that is not 0 and the start position of the time unit, the offset value between the end position of the part where the signal power is not 0 in the first signal and the end position of the time unit, where , the offset value of the part with signal power of 0 in the first signal on the time unit is any of the following: the offset between the starting position of the part with
  • the transceiver unit 1510 is used to send indication information, the indication information indicates the time information of the first signal, and the part of the first signal whose signal power is not 0 is in at least one time unit among the N time units.
  • the time length is greater than 0 and less than or equal to the length of the time unit, and the time information of the first signal includes at least one of the following: the ratio of the time length of the part where the signal power is not 0 in the first signal to the length of the time unit, The length of time occupied by the part of the first signal where the signal power is not 0, the ratio of the length of time occupied by the part of the first signal where the signal power is 0 to the length of the time unit, the part of the first signal where the signal power is 0 The length of time occupied; the transceiver unit 1510 is also used to send wake-up signals on N time units.
  • the wake-up signals include N1 first signals and N2 second signals.
  • the first signal indicates the first bit value, and the second signal Indicates the second bit value, the signal power of the first signal is not 0, the signal power of the second signal is 0, each of the N1 first signals occupies one time unit of the N time units, N2
  • the indication information is period value configuration information of the synchronization signal, and the period value of the synchronization signal has a correlation relationship with the time information of the first signal.
  • the transceiver unit 1510 is also used for the network device to send configuration information.
  • the configuration information includes: the offset value of the part of the first signal whose signal power is not 0 in the time unit, or the signal power of the first signal is The offset value of the part of 0 in the time unit, where the offset value of the part of the first signal whose signal power is not 0 in the time unit is any of the following: the part of the first signal whose signal power is not 0 The offset value between the starting position of the time unit and the starting position of the time unit, the offset value between the starting position of the part where the signal power is not 0 in the first signal and the end position of the time unit, the offset value in the first signal The offset value between the end position of the part where the signal power is not 0 and the start position of the time unit, the offset value between the end position of the part where the signal power is not 0 and the end position of the time unit in the first signal , wherein the offset value of the part with signal power of 0 in the first signal on the time
  • Shift value offset value between the end position of the part where the signal power is 0 in the first signal and the start position of the time unit, between the end position of the part where the signal power is 0 in the first signal and the end position of the time unit offset value between.
  • the device 1500 can implement steps or processes corresponding to the steps or processes executed by the network device in the method embodiments of the embodiments of the present application.
  • the device 1500 may include a method for executing the method executed by the network device in the method embodiments of the embodiments of the present application. unit. The specific process of each unit performing the above corresponding steps has been described in detail in each of the above method embodiments, and will not be described again for the sake of brevity.
  • the device 1500 here is embodied in the form of a functional unit.
  • the term "unit” here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor, or a group processor) for executing at least one software or firmware program etc.) and memory, merged logic circuitry, and/or other suitable components to support the described functionality.
  • ASIC application specific integrated circuit
  • processor such as a shared processor, a dedicated processor, or a group processor
  • memory merged logic circuitry, and/or other suitable components to support the described functionality.
  • the device 1500 can be specifically a terminal device in the above embodiments, and can be used to execute various processes and/or steps corresponding to the terminal device in the above method embodiments; or , the device 1500 may be specifically the network device in the above embodiments, and may be used to execute various processes and/or steps corresponding to the network devices in the above method embodiments. To avoid duplication, they will not be described again here.
  • the device 1500 of each of the above solutions has the function of realizing the corresponding steps performed by the communication equipment (such as terminal equipment, or network equipment) in the above method.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes at least one module corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver ), other units, such as a processing unit, can be replaced by a processor to respectively perform the sending and receiving operations and related processing operations in each method embodiment.
  • transceiver unit 1510 may also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit.
  • the device in Figure 15 can be the device in the aforementioned embodiment, or it can be a chip or a chip system, such as a system on chip (SoC).
  • the transceiver unit may be an input-output circuit or a communication interface; the processing unit may be a processor, microprocessor, or integrated circuit integrated on the chip. No limitation is made here.
  • Figure 16 is a schematic diagram of another communication device 1600 according to an embodiment of the present application.
  • the apparatus 1600 includes a processor 1610 coupled to a memory 1620.
  • the device 1600 further includes a memory 1620.
  • the memory 1620 is used to store computer programs or instructions and/or data
  • the processor 1610 is used to execute the computer programs or instructions stored in the memory 1620, or read the data stored in the memory 1620, to perform the methods in the above method embodiments.
  • processor 1610 there is at least one processor 1610.
  • At least one memory 1620 there is at least one memory 1620 .
  • the memory 1620 is integrated with the processor 1610, or is provided separately.
  • the device 1600 also includes a transceiver 1630, which is used for receiving and/or transmitting signals.
  • the processor 1610 is used to control the transceiver 1630 to receive and/or transmit signals.
  • the device 1600 is used to implement the operations performed by the terminal device in each of the above method embodiments.
  • the processor 1610 is used to execute computer programs or instructions stored in the memory 1620 to implement related operations of the terminal device in each of the above method embodiments. For example, the method executed by the terminal device in the embodiment shown in FIG. 9 .
  • the device 1600 is used to implement the operations performed by the network device in each of the above method embodiments.
  • the processor 1610 is used to execute computer programs or instructions stored in the memory 1620 to implement related operations of the network device in each of the above method embodiments. For example, the method performed by the network device in the embodiment shown in Figure 9.
  • processors mentioned in the embodiments of this application may be a central processing unit (CPU), or other general-purpose processor, digital signal processor (DSP), or application-specific integrated circuit (ASIC).
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • the memory mentioned in the embodiments of the present application may be a volatile memory and/or a non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically removable memory.
  • ROM read-only memory
  • PROM programmable ROM
  • EPROM erasable programmable read-only memory
  • EPROM erasable PROM
  • EPROM erasable programmable read-only memory
  • Erase programmable read-only memory electrically EPROM, EEPROM
  • Volatile memory may be random access memory (RAM).
  • RAM can be used as an external cache.
  • RAM includes the following forms: static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double Data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM) and direct memory bus Random access memory (direct rambus RAM, DR RAM).
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component
  • the memory storage module
  • memories described herein are intended to include, but are not limited to, these and any other suitable types of memories.
  • Figure 17 is a schematic diagram of a chip system 1700 provided by an embodiment of the present application.
  • the chip system 1700 (or can also be called a processing system) includes a logic circuit 1710 and an input/output interface 1720.
  • the logic circuit 1710 may be a processing circuit in the chip system 1700 .
  • the logic circuit 1710 can be coupled to the storage unit and call instructions in the storage unit, so that the chip system 1700 can implement the methods and functions of various embodiments of the present application.
  • the input/output interface 1720 can be an input/output circuit in the chip system 1700, which outputs information processed by the chip system 1700, or inputs data or signaling information to be processed into the chip system 1700 for processing.
  • the logic circuit 1710 is coupled with the input/output interface 1720, and the input/output interface 1720 can input the wake-up signal to the logic circuit 1710 for processing.
  • the chip system 1700 is used to implement the operations performed by the terminal device in each of the above method embodiments.
  • the logic circuit 1710 is used to implement the processing-related operations performed by the terminal device in the above method embodiment, such as the processing-related operations performed by the terminal device in the embodiment shown in Figure 9;
  • the input/output interface 1720 is used to Implement the sending and/or receiving related operations performed by the terminal device in the above method embodiment, such as the sending and/or receiving related operations performed by the terminal device in the embodiment shown in FIG. 9 .
  • the chip system 1700 is used to implement the operations performed by the network device in each of the above method embodiments.
  • the logic circuit 1710 is used to implement the processing-related operations performed by the network device in the above method embodiment, such as the processing-related operations performed by the network device in the embodiment shown in Figure 9;
  • the input/output interface 1720 is used to Implement the sending and/or receiving related operations performed by the network device in the above method embodiment, such as the sending and/or receiving related operations performed by the network device in the embodiment shown in FIG. 9 .
  • Embodiments of the present application also provide a computer-readable storage medium on which computer instructions for implementing the methods executed by the device in each of the above method embodiments are stored.
  • the computer when the computer program is executed by a computer, the computer can implement the method executed by the terminal device in each embodiment of the above method.
  • the computer when the computer program is executed by a computer, the computer can implement the method executed by the network device in each embodiment of the above method.
  • Embodiments of the present application also provide a computer program product, which includes instructions.
  • the instructions are executed by a computer, the methods executed by terminal devices or network devices in each of the above method embodiments are implemented.
  • An embodiment of the present application also provides a communication system, which includes the terminal equipment and network equipment in the above embodiments.
  • the disclosed devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • at least two units or components may be combined. Either it can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the computer may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes at least one computer instruction.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the flow described in the embodiments of the present application is generated in whole or in part. process or function.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer may be a personal computer, a server, or a network device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with at least one available medium.
  • the available media may be magnetic media (such as floppy disks, hard disks, magnetic tapes), optical media (such as DVDs), or semiconductor media (such as solid state disks (SSD)).
  • the aforementioned available media include but Not limited to: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program code.

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Abstract

一种通信方法和通信装置。方法包括:在N个时间单元上接收唤醒信号,唤醒信号包括N1个第一信号和N2个第二信号,第一信号指示第一比特值,第二信号指示第二比特值,第一信号的信号功率不为0,第二信号的信号功率为0,每个第一信号占一个时间单元,每个第二信号占一个时间单元,第一信号包括功率为0的部分和功率不为0的部分,其中信号功率不为0的部分在至少一个时间单元上的时间长度大于0且小于时间单元的长度,N为大于1的整数,N1和N2为大于或等于0的整数,N1+N2=N;终端设备解调唤醒信号。设计缩短第一信号中功率不为0的部分的时间长度,将第一信号的能量集中在更短时间内,提高短时间内的信噪比,进而提升解调性能。

Description

通信方法和通信装置
本申请要求于2022年09月16日提交中国专利局、申请号为202211132097.2、申请名称为“一种通信方法”的中国专利申请的优先权、以及于2022年09月23日提交中国专利局、申请号为202211167586.1、申请名称为“通信方法和通信装置”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
本申请涉及通信领域,并且更具体地,涉及一种通信方法和通信装置。
背景技术
终端设备可以通过一个单独的低功耗小电路,如唤醒接收机(wake up receiver,WUR),接收唤醒信号,且主接收机可以处于深度睡眠状态。当终端设备通过WUR检测到唤醒信号后,终端设备触发主接收机的唤醒。主接收机唤醒后,终端设备可以通过主接收机执行数据传输。
一种常用的调制唤醒信号的方式为开关键控(on off key,OOK)调制。OOK调制主要是指利用信号的发送与否来调制信息,对应的唤醒电路可采用包络检测的方法接收信号。OOK调制技术可以用复杂度很低的接收机就可以实现解调,故而能实现唤醒电路的低功耗目标。由于OOK调制仅利用了信号的幅度信息,因此唤醒信号若采用OOK调制,虽然可以降低接收机的功耗,但是解调性能相对较差。如何提高采用OOK调制的唤醒信号的解调性能,是一个待解决的问题。
发明内容
本申请提供一种通信方法和通信装置,用于提高采用OOK调制的唤醒信号的解调性能。
第一方面,提供了一种通信方法,该方法可以由终端设备执行,或者,也可以由终端设备的组成部件(例如芯片或者电路)执行,对此不作限定。为了便于描述,下面以由终端设备执行为例进行说明。
该方法可以包括:终端设备在N个时间单元上接收来自网络设备的唤醒信号,唤醒信号包括N1个第一信号和N2个第二信号,第一信号指示第一比特值,第二信号指示第二比特值,第一信号的信号功率不为0,第二信号的信号功率为0,N1个第一信号中的每个第一信号占N个时间单元中的一个时间单元,N2个第二信号中的每个第二信号占N个时间单元中的一个时间单元,第一信号包括功率为0的部分和功率不为0的部分,第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上所占的时间长度大于0且小于时间单元的长度,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N;终端设备解调唤醒信号。
基于上述技术方案,第一信号指示第一比特值,第二信号指示第二比特值,第一信号的信号功率不为0,第二信号的信号功率为0,由此可知,唤醒信号的调制方式为开关键控(on off key,OOK)调制。此外,通过设计缩短第一信号中功率不为0的部分在一个时间单元上的时间长度,也就是说设计第一信号中信号功率不为0的部分所占的时间长度大于0且小于时间单元的长度,这样相比于第一信号中功率不为0的部分所占的时间长度为时间单元的长度的方案,可以将第一信号的能量集中在更短时间内,提升短时间内的信噪比,进而提升唤醒信号的解调性能。
结合第一方面,在第一方面的某些实现方式中,方法还包括:终端设备接收来自网络设备的指示信息,指示信息指示第一信号的时间信息,第一信号的时间信息包括以下至少一项:第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率不为0的部分所占的时间长度、第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率为0的部分所占的时间长度。
可选地,终端设备解调唤醒信号,包括:终端设备基于第一信号的时间信息,解调唤醒信号。
基于上述技术方案,网络设备可配置第一信号的时间信息,并指示给终端设备,这样终端设备可基于第一信号中功率不为0的部分在一个时间单元中所占的时间长度,解调唤醒信号。举例来说,若终端设备知道第一信号中功率不为0的部分在一个时间单元中所占的时间长度,则终端设备可以选择解调对应的时间区间;若终端设备不知道第一信号中功率不为0的部分在一个时间单元中所占的时间长度,则终端设备会将整个时间单元作为解调对应的时间区间,会引入更多噪声能量。因此,终端设备基于第一信号中功率不为0的部分在一个时间单元中所占的时间长度解调唤醒信号,可以避免引入更多噪声能量,进而提高采用OOK调制的唤醒信号的解调性能。
结合第一方面,在第一方面的某些实现方式中,指示信息为同步信号的周期值配置信息,同步信号的周期值与第一信号的时间信息具有关联关系。
基于上述技术方案,同步信号的周期值与第一信号的时间信息具有关联关系,因此终端设备基于同步信号的周期值可确定第一信号的时间信息。这样,网络设备向终端设备指示同步信号的周期值,不仅可以使得终端设备获知同步信号的周期值,还可以使得终端设备根据同步信号的周期值与第一信号的时间信息之间的关联关系,确定该周期值对应的第一信号的时间信息,进而节省信令开销。此外,考虑到第一信号中信号功率不为0的部分所占的时间长度不同,抗时偏的能力不同,同步信号的周期会影响时偏最大值,因此通过建立同步信号的周期值与第一信号的时间信息之间的关联关系,可以实现解调性能和抗时偏之间的平衡。
结合第一方面,在第一方面的某些实现方式中,方法还包括:终端设备周期性地接收来自网络设备的同步信号,同步信号的周期值与第一信号的时间信息具有关联关系,第一信号的时间信息包括以下至少一项:第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率不为0的部分所占的时间长度、第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率为0的部分所占的时间长度。
基于上述技术方案,同步信号的周期值与第一信号的时间信息具有关联关系,这样终端设备可基于同步信号的周期值确定第一信号的时间信息,或者也可基于第一信号的时间信息确定同步信号的周期值。这样,网络设备向终端设备指示同步信号的周期值或第一信号的时间信息,终端设备就可以同时获知同步信号的周期值以及第一信号的时间信息,可节省信令开销。此外,考虑到第一信号中信号功率不为0的部分所占的时间长度不同,抗时偏的能力不同,同步信号的周期会影响时偏最大值,因此通过建立同步信号的周期值与第一信号的时间信息之间的关联关系,可以实现解调性能和抗时偏之间的平衡。
结合第一方面,在第一方面的某些实现方式中,方法还包括:终端设备接收来自网络设备的配置信息,配置信息包括:第一信号中信号功率不为0的部分在时间单元上的偏移值,或者,第一信号中信号功率为0的部分在时间单元上的偏移值,其中,第一信号中信号功率不为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率不为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的结束位置之间的偏移值,其中,第一信号中信号功率为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的结束位置之间的偏移值。
基于上述技术方案,网络设备可配置第一信号中功率不为0的部分相对于时间单元的偏移值,或者,配置第一信号中功率为0的部分相对于时间单元的偏移值,这样,终端设备可以基于该偏移值获知第一信号中功率不为0的部分在时间单元上的位置,从而确定解调对应的时间区间,来提升解调对应的时间区间信号的信噪比,从而提升解调性能。
第二方面,提供了一种通信方法,该方法可以由网络设备执行,或者,也可以由网络设备的组成部件(例如芯片或者电路)执行,对此不作限定。为了便于描述,下面以由网络设备执行为例进行说明。
该方法可以包括:网络设备生成唤醒信号;网络设备在N个时间单元上发送唤醒信号,唤醒信号 包括N1个第一信号和N2个第二信号,第一信号指示第一比特值,第二信号指示第二比特值,第一信号的信号功率不为0,第二信号的信号功率为0,N1个第一信号中的每个第一信号占N个时间单元中的一个时间单元,N2个第二信号中的每个第二信号占N个时间单元中的一个时间单元,第一信号包括功率为0的部分和功率不为0的部分,第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上的时间长度大于0且小于时间单元的长度,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N。
结合第二方面,在第二方面的某些实现方式中,方法还包括:网络设备发送指示信息,指示信息指示第一信号的时间信息,第一信号的时间信息包括以下至少一项:第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率不为0的部分所占的时间长度、第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率为0的部分所占的时间长度。
结合第二方面,在第二方面的某些实现方式中,指示信息为同步信号的周期值配置信息,同步信号的周期值与第一信号的时间信息具有关联关系。
结合第二方面,在第二方面的某些实现方式中,方法还包括:网络设备周期性地发送同步信号,同步信号的周期值与第一信号的时间信息具有关联关系,第一信号的时间信息包括以下至少一项:第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率不为0的部分所占的时间长度、第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率为0的部分所占的时间长度。
结合第二方面,在第二方面的某些实现方式中,方法还包括:网络设备发送配置信息,配置信息包括:第一信号中信号功率不为0的部分在时间单元上的偏移值,或者,第一信号中信号功率为0的部分在时间单元上的偏移值,其中,第一信号中信号功率不为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率不为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的结束位置之间的偏移值,其中,第一信号中信号功率为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的结束位置之间的偏移值。
第二方面及各个可能的设计的有益效果可以参考第一方面相关的描述,在此不予赘述。
第三方面,提供了一种通信方法,该方法可以由终端设备执行,或者,也可以由终端设备的组成部件(例如芯片或者电路)执行,对此不作限定。为了便于描述,下面以由终端设备执行为例进行说明。
该方法可以包括:终端设备接收来自网络设备的指示信息,指示信息指示第一信号的时间信息,第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上的时间长度大于0且小于或等于时间单元的长度,第一信号的时间信息包括以下至少一项:第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率不为0的部分所占的时间长度、第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率为0的部分所占的时间长度;终端设备在N个时间单元上接收来自网络设备的唤醒信号,唤醒信号包括N1个第一信号和N2个第二信号,第一信号指示第一比特值,第二信号指示第二比特值,第一信号的信号功率不为0,第二信号的信号功率为0,N1个第一信号中的每个第一信号占N个时间单元中的一个时间单元,N2个第二信号中的每个第二信号占N个时间单元中的一个时间单元,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N。
可选地,方法还包括:终端设备基于第一信号的时间信息,解调唤醒信号。
基于上述技术方案,网络设备可配置第一信号的时间信息,并指示给终端设备,这样终端设备可基于第一信号中功率不为0的部分在一个时间单元中所占的时间长度,解调唤醒信号。举例来说,若终端设备知道第一信号中功率不为0的部分在一个时间单元中所占的时间长度,则终端设备可以选择 解调对应的时间区间;若终端设备不知道第一信号中功率不为0的部分在一个时间单元中所占的时间长度,则终端设备会选择解调整个时间单元,会引入更多噪声能量。因此,终端设备基于第一信号中功率不为0的部分在一个时间单元中所占的时间长度解调唤醒信号,可以避免引入更多噪声能量,进而提高唤醒信号的解调性能。此外,第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上的时间长度大于0且小于或等于时间单元的长度,也就是说,网络侧或协议可预定义(或支持)至少两种第一信号中信号功率不为0的部分所占的时间长度,在实际传输时,网络设备可根据实际通信情况或实际通信场景,选择合适的长度,并通知给终端设备。
结合第三方面,在第三方面的某些实现方式中,指示信息为同步信号的周期值配置信息,同步信号的周期值与第一信号的时间信息具有关联关系。
基于上述技术方案,同步信号的周期值与第一信号的时间信息具有关联关系,因此终端设备基于同步信号的周期值可确定第一信号的时间信息。这样,网络设备向终端设备指示同步信号的周期值,不仅可以使得终端设备获知同步信号的周期值,还可以使得终端设备根据同步信号的周期值与第一信号的时间信息之间的关联关系,确定该周期值对应的第一信号的时间信息,进而节省信令开销。此外,考虑到第一信号中信号功率不为0的部分所占的时间长度不同,抗时偏的能力不同,同步信号的周期会影响时偏最大值,因此通过建立同步信号的周期值与第一信号的时间信息之间的关联关系,可以实现解调性能和抗时偏之间的平衡。
结合第三方面,在第三方面的某些实现方式中,方法还包括:终端设备接收来自网络设备的配置信息,配置信息包括:第一信号中信号功率不为0的部分在时间单元上的偏移值,或者,第一信号中信号功率为0的部分在时间单元上的偏移值,其中,第一信号中信号功率不为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率不为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的结束位置之间的偏移值,其中,第一信号中信号功率为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的结束位置之间的偏移值。
基于上述技术方案,网络设备可配置第一信号中功率不为0的部分相对于时间单元的偏移值,或者,配置第一信号中功率为0的部分相对于时间单元的偏移值,这样,终端设备可以基于该偏移值获知第一信号中功率不为0的部分在时间单元上的位置,从而确定解调对应的时间区间,来提升解调对应的时间区间信号的信噪比,从而提升解调性能。
第四方面,提供了一种通信方法,该方法可以由网络设备执行,或者,也可以由网络设备的组成部件(例如芯片或者电路)执行,对此不作限定。为了便于描述,下面以由网络设备执行为例进行说明。
该方法可以包括:网络设备发送指示信息,指示信息指示第一信号的时间信息,第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上的时间长度大于0且小于或等于时间单元的长度,第一信号的时间信息包括以下至少一项:第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率不为0的部分所占的时间长度、第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率为0的部分所占的时间长度;网络设备在N个时间单元上发送唤醒信号,唤醒信号包括N1个第一信号和N2个第二信号,第一信号指示第一比特值,第二信号指示第二比特值,第一信号的信号功率不为0,第二信号的信号功率为0,N1个第一信号中的每个第一信号占N个时间单元中的一个时间单元,N2个第二信号中的每个第二信号占N个时间单元中的一个时间单元,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N。
结合第四方面,在第四方面的某些实现方式中,指示信息为同步信号的周期值配置信息,同步信号的周期值与第一信号的时间信息具有关联关系。
结合第四方面,在第四方面的某些实现方式中,方法还包括:网络设备发送配置信息,配置信息 包括:第一信号中信号功率不为0的部分在时间单元上的偏移值,或者,第一信号中信号功率为0的部分在时间单元上的偏移值,其中,第一信号中信号功率不为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率不为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的结束位置之间的偏移值,其中,第一信号中信号功率为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的结束位置之间的偏移值。
第四方面及各个可能的设计的有益效果可以参考第三方面相关的描述,在此不予赘述。
结合第一方面至第四方面,在某些实现方式中,唤醒信号的调制方式为开关键控OOK。
结合第一方面至第四方面,在某些实现方式中,唤醒信号的波形为正交频分复用OFDM波形。
结合第一方面至第四方面,在某些实现方式中,每个OFDM符号为一个时间单元,或者,每个OFDM符号包括至少两个时间单元。
结合第一方面至第四方面,在某些实现方式中,唤醒信号的编码方式为曼彻斯特编码方式。
第五方面,提供一种通信装置,该装置用于执行上述第一方面至第四方面中任一方面提供的方法。具体地,该装置可以包括用于执行第一方面至第四方面中任一方面的上述任意一种实现方式提供的方法的单元和/或模块,如处理单元和/或通信单元。
在一种实现方式中,该装置为通信设备(如终端设备,又如网络设备)。当该装置为通信设备时,通信单元可以是收发器,或,输入/输出接口;处理单元可以是至少一个处理器。可选地,收发器可以为收发电路。可选地,输入/输出接口可以为输入/输出电路。
在另一种实现方式中,该装置为用于通信设备(如终端设备,又如网络设备)中的芯片、芯片系统或电路。当该装置为用于通信设备中的芯片、芯片系统或电路时,通信单元可以是该芯片、芯片系统或电路上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等;处理单元可以是至少一个处理器、处理电路或逻辑电路等。
第六方面,提供一种通信装置,该装置包括:存储器,用于存储程序;至少一个处理器,用于执行存储器存储的计算机程序或指令,以执行上述第一方面至第四方面中任一方面的上述任意一种实现方式提供的方法。
在一种实现方式中,该装置为通信设备(如终端设备,又如网络设备)。
在另一种实现方式中,该装置为用于通信设备(如终端设备,又如网络设备)中的芯片、芯片系统或电路。
第七方面,本申请提供一种处理器,用于执行上述各方面提供的方法。
对于处理器所涉及的发送和获取/接收等操作,如果没有特殊说明,或者,如果未与其在相关描述中的实际作用或者内在逻辑相抵触,则可以理解为处理器输出和输入等操作,也可以理解为由射频电路和天线所进行的发送和接收操作,本申请对此不做限定。
第八方面,提供一种计算机可读存储介质,该计算机可读介质存储用于设备执行的程序代码,该程序代码包括用于执行上述第一方面至第四方面中任一方面的上述任意一种实现方式提供的方法。
第九方面,提供一种包含指令的计算机程序产品,当该计算机程序产品在计算机上运行时,使得计算机执行上述第一方面至第四方面中任一方面的上述任意一种实现方式提供的方法。
第十方面,提供一种芯片,芯片包括处理器与通信接口,处理器通过通信接口读取存储器上存储的指令,执行上述第一方面至第四方面中任一方面的上述任意一种实现方式提供的方法。
可选地,作为一种实现方式,芯片还包括存储器,存储器中存储有计算机程序或指令,处理器用于执行存储器上存储的计算机程序或指令,当计算机程序或指令被执行时,处理器用于执行上述第一方面至第四方面中任一方面的上述任意一种实现方式提供的方法。
第十一方面,提供一种通信系统,包括上文的终端设备和网络设备。
附图说明
图1是适用于本申请实施例的无线通信系统100的一示意图。
图2是主电路和唤醒电路的示意图。
图3是信号采用OOK调制时的波形示意图。
图4是信号经过信道后的波形示意图。
图5是信号采用曼彻斯特编码后的波形的一示意图。
图6是信号采用曼彻斯特编码后的波形的另一示意图。
图7是高信噪比场景下无噪声的信号和有噪声的信号的示意图。
图8是低信噪比场景下无噪声的信号和有噪声的信号的示意图。
图9是本申请实施例提供的一种通信方法900的示意图。
图10是多径时延造成的ISI的示意图。
图11是第一信号和第二信号在一个时间单元上的示意图。
图12是各种情况下信噪比的示意图。
图13是唤醒信号的波形为ODFM波形的一示意图。
图14是唤醒信号的波形为ODFM波形的另一示意图。
图15是本申请实施例提供的一种通信装置1500的示意图。
图16是本申请实施例提供另一种通信装置1600的示意图。
图17是本申请实施例提供一种芯片系统1700的示意图。
具体实施方式
下面将结合附图,对本申请实施例中的技术方案进行描述。
本申请提供的技术方案可以应用于各种通信系统,例如:第五代(5th generation,5G)或新无线(new radio,NR)系统、长期演进(long term evolution,LTE)系统、LTE频分双工(frequency division duplex,FDD)系统、LTE时分双工(time division duplex,TDD)系统等。本申请提供的技术方案还可以应用于未来的通信系统,如第六代移动通信系统。本申请提供的技术方案还可以应用于设备到设备(device to device,D2D)通信,车到万物(vehicle-to-everything,V2X)通信,机器到机器(machine to machine,M2M)通信,机器类型通信(machine type communication,MTC),以及物联网(internet of things,IoT)通信系统或者其他通信系统。
本申请实施例中的终端设备也可以称为用户设备(user equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。
终端设备可以是一种向用户提供语音/数据的设备,例如,具有无线连接功能的手持式设备、车载设备等。目前,一些终端的举例为:手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device,MID)、可穿戴设备,虚拟现实(virtual reality,VR)设备、增强现实(augmented reality,AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、蜂窝电话、无绳电话、会话启动协议(session initiation protocol,SIP)电话、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、可穿戴设备,5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network,PLMN)中的终端设备等,本申请实施例对此并不限定。
作为示例而非限定,在本申请实施例中,该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功 能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能首饰等。
本申请实施例中,用于实现终端设备的功能的装置可以是终端设备,也可以是能够支持终端设备实现该功能的装置,例如芯片系统或芯片,该装置可以被安装在终端设备中。本申请实施例中,芯片系统可以由芯片构成,也可以包括芯片和其他分立器件。
本申请实施例中的网络设备可以是用于与终端设备通信的设备,该网络设备也可以称为接入网设备或无线接入网设备,如网络设备可以是基站。本申请实施例中的网络设备可以是指将终端设备接入到无线网络的无线接入网(radio access network,RAN)节点(或设备)。基站可以广义的覆盖如下中的各种名称,或与如下名称进行替换,比如:节点B(NodeB)、演进型基站(evolved NodeB,eNB)、下一代基站(next generation NodeB,gNB)、中继站、接入点、传输点(transmitting and receiving point,TRP)、发射点(transmitting point,TP)、主站、辅站、多制式无线(motor slide retainer,MSR)节点、家庭基站、网络控制器、接入节点、无线节点、接入点(AP)、传输节点、收发节点、基带单元(BBU)、射频拉远单元(remote radio unit,RRU)、有源天线单元(active antenna unit,AAU)、射频头(remote radio head,RRH)、中心单元(central unit,CU)、分布式单元(distributed unit,DU)、定位节点等。基站可以是宏基站、微基站、中继节点、施主节点或类似物,或其组合。基站还可以指用于设置于前述设备或装置内的通信模块、调制解调器或芯片。基站还可以是移动交换中心以及D2D、V2X、M2M通信中承担基站功能的设备、6G网络中的网络侧设备、未来的通信系统中承担基站功能的设备等。基站可以支持相同或不同接入技术的网络。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。
基站可以是固定的,也可以是移动的。例如,直升机或无人机可以被配置成充当移动基站,一个或多个小区可以根据该移动基站的位置移动。在其他示例中,直升机或无人机可以被配置成用作与另一基站通信的设备。
在一些部署中,本申请实施例所提及的网络设备可以为包括CU、或DU、或包括CU和DU的设备、或者控制面CU节点(控制面的中央单元(central unit-control plane,CU-CP))和用户面CU节点(用户面的中央单元(central unit-user plane,CU-UP))以及DU节点的设备。
网络设备和终端设备可以部署在陆地上,包括室内或室外、手持或车载;也可以部署在水面上;还可以部署在空中的飞机、气球和卫星上。本申请实施例中对网络设备和终端设备所处的场景不做限定。
首先结合图1简单介绍适用于本申请实施例的通信系统,如下。
参见图1,作为示例,图1是适用于本申请实施例的无线通信系统100的一示意图。如图1所示,该无线通信系统100可以包括至少一个网络设备,例如图1所示的网络设备110,该无线通信系统100还可以包括至少一个终端设备,例如图1所示的终端设备120。举例来说,网络设备和终端设备均可配置多个天线,网络设备与终端设备可使用多天线技术通信。
其中,网络设备和终端设备通信时,网络设备可以管理一个或多个小区,一个小区中可以包括至少一个终端设备。可选地,网络设备110和终端设备120组成一个单小区通信系统,假设将小区记为小区#1。网络设备110可以是小区#1中的网络设备,或者,网络设备110可以为小区#1中的终端设备(例如终端设备120)服务。
需要说明的是,小区可以理解为网络设备的无线信号覆盖范围内的区域。
应理解,图1仅为便于理解而示例的简化示意图,该无线通信系统100中还可以包括其他网络设备或者还可以包括其他终端设备,图1中未予以画出。
为便于理解本申请实施例,对本申请中涉及到的术语做简单说明。
1、唤醒电路:或者称为唤醒接收机(wake up receiver,WUR)或唤醒模块,可以理解为是终端设备在空闲态所使用的电路,或者可以理解为是一个单独的低功耗小电路。该低功耗小电路可以使用一个结构简单的单独的小电路或芯片实现,其功耗较低。终端设备使用唤醒电路接收的信号如可以称为唤醒信号(wake up signal/radio,WUS/WUR)。可以理解,唤醒电路仅是为区分做的命名,其具体命名不对本申请的保护范围造成限定,例如不失一般性,唤醒电路也可以描述为第一电路(或第一模块)。
终端设备使用唤醒电路接收的信号可以被称为在唤醒链路上传输,其中,唤醒链路表征了终端设 备和网络设备间的一种连接关系,是一个逻辑概念,而非一个物理实体。可以理解,唤醒链路仅是为区分做的命名,其具体命名不对本申请的保护范围造成限定,为不失一般性,本申请实施例中将唤醒链路描述为第一链路。还应理解,唤醒信号仅是一种示例的命名,关于其命名,本申请不予限制。
2、主电路:或者称为主接收机或主模块,可以理解为是终端设备正常传输数据时所使用的电路,或终端设备在连接态传输数据时所使用的电路。终端设备使用主电路传输数据时,耗电量较大。可以理解,主电路仅是为区分做的命名,其具体命名不对本申请的保护范围造成限定,例如不失一般性,主电路也可以描述为第二电路(或第二模块)。下文统一描述为主电路。
终端设备使用主电路接收的信号可以被称为在主链路上传输,其中,主链路表征了终端设备和网络设备间的一种连接关系,是一个逻辑概念,而非一个物理实体。可以理解,主链路仅是为区分做的命名,其具体命名不对本申请的保护范围造成限定,为不失一般性,本申请实施例中将主链路描述为第二链路。
下文,为便于描述,将终端设备使用唤醒电路传输的信号记为唤醒信号,将终端设备使用主电路传输的信号记为数据信号。
参见图2,作为示例,图2是主电路和唤醒电路的示意图。
如图2所示,终端设备可通过唤醒电路接收(或者称检测)唤醒信号,终端设备可通过主电路接收数据信号。假设终端设备通过唤醒电路接收唤醒信号。若终端设备未检测到唤醒信号,则继续使用唤醒电路接收唤醒信号,主电路可处于关闭状态(或者睡眠状态);若终端设备检测到唤醒信号,则触发主电路的唤醒,即令主电路处于/切换为开启状态(或者称为工作状态,或者称为活跃状态)。主电路开启后,终端设备可以通过主电路传输数据信号。
3、开关键控(on off key,OOK)调制:利用信号的发送与否来调制信息,对应的唤醒电路可采用包络检测的方法接收信号。OOK调制技术可以用复杂度很低的接收机就可以实现解调,故而能实现唤醒电路的低功耗目标。为了保证功耗收益,唤醒信号可采用OOK调制。可以理解,唤醒信号也可以采用其他的调制方式,如移频键控(frequency shift keying,FSK)调制,对此不予限制。
当信号采用OOK调制时,每个比特(即编码后的比特)可对应一个符号(symbol)。等价的,一个符号也可以被称为一个码片(chip),也可以被称为其他名称,这里不做限制。
例如,当比特(bit)为“1”时,符号长度内有信号发出(即该符号长度内信号发射功率不为0);当比特为“0”时,符号长度内无信号发出(即该符号长度内信号发射功率为0)。或者也可以理解为,OOK调制中,如果发送能量,则代表“1”,不发送能量,则代表“0”。
再例如,当比特为“0”时,符号长度内有信号发出(即该符号长度内信号发射功率不为0);当比特为“1”时,符号长度内无信号发出(即该符号长度内信号发射功率为0)。或者也可以理解为,OOK调制中,如果发送能量,则代表“0”,不发送能量,则代表“1”。
下文,为便于描述,主要以当比特为“1”时,该符号长度内有信号发出;当比特为“0”时,该符号长度内无信号发出为例进行示例性说明。
此外,为便于描述,若一个符号内有信号发出,则该信号记为ON信号;则一个符号内无信号发出,则该信号记为OFF信号。以当比特为“1”时,该符号长度内有信号发出;当比特为“0”时,该符号长度内无信号发出为例,ON信号表示信息比特为“1”,OFF信号表示信息比特为“0”。
此外,下文中提及的OOK符号表示采用OOK调制得到的符号。OOK符号例如可以为ON信号,或者也可以为OFF信号。例如,若信息比特为“1”,则通过OOK调制得到的OOK符号为ON信号,若信息比特为“0”,则通过OOK调制得到的OOK符号为OFF信号。OOK符号也可称为OOK信号,为统一,下文均用OOK符号描述。
参见图3,作为示例,图3是信号采用OOK调制时的波形示意图。
作为示例,假设当比特为“1”时,OOK符号长度内有信号发出;当比特为“0”时,OOK符号长度内无信号发出,因此图3所示的波形可代表“0100”四个比特,也即第一个是OFF信号,第二个是ON信号,第三个和第四个都为OFF信号。如图3所示,通信系统一般都是使用一定的频率(frequency)发送,发送信号需要调制在载波上。在接收端,接收端检测接收信号的包络(或者是能量),判断OOK符号对应的是比特“0”还是比特“1”,从而完成解调。
信号经过信道后,由于信道状态的影响等,可能会发生畸变。以图3所示的OOK调制波形为例, 图3所示的波形在接收端可能变成如图4所示的波形。
参见图4,作为示例,图4是信号经过信道后的波形示意图。为了判断信号对应比特“0”还是比特“1”,终端设备可以将接收到的信号电平值与一个门限进行比较(门限如图4中的虚线所示)。举例来说,若终端设备接收到的信号电平值大于该门限,则表示该信号对应比特“1”;若终端设备接收到的信号电平值小于该门限,则表示该信号对应比特“0”。但是门限的设定比较难。比如,若门限选取不合适,则可能会导致解调错误。为了解决该问题,一种可能的方式是采用曼彻斯特编码。
4、曼彻斯特编码:是一种双相编码,可通过电平的高低转换来表示比特“0”或比特“1”。例如,通过曼彻斯特编码,可以将原始比特“0”编码为比特“10”,将原始比特“1”编码为比特“01”,为区分,原始比特编码后的比特,如比特“10”和“01”,可被称为编码比特。发送端在发送信号时,可使用2个OOK符号发送1比特原始信息,若原始比特“0”编码为比特“10”,原始比特“1”编码为比特“01”,则原始比特“0”对应一个ON信号接着一个OFF信号,原始比特“1”对应一个OFF信号接着一个ON信号。接收端在对曼彻斯特编码后的信号进行解调的时候,可以比较相邻两个OOK符号内的信号功率(或信号幅度)的相对大小。若在前的OOK符号内信号功率(或信号幅度)比在后的OOK符号内信号功率(或信号幅度)大,则认为收到的信息比特为“0”,反之为认为收到的信息比特为“1”。通过这种方式,可以避免选取绝对门限来做判决。
可以理解,上述以原始比特“0”编码为比特“10”,原始比特“1”编码为比特“01”为例进行示例性说明,对此不予限制。例如,原始比特“0”编码为比特“01”,原始比特“1”编码为比特“10”。
作为示例,可以基于正交频分复用(orthogonal frequency division multiplexing,OFDM)发射机来生成信号,也即可采用OFDM发射机来进行信号的调制。
一种可能的方式,在一个OFDM符号的长度内发射一个OOK符号,或者说一个OOK符号占一个OFDM符号。例如,若要在一个OOK符号长度内发ON信号的时候,发送端可发送某种特定的信号,令该信号在OOK符号长度内的轮廓尽可能像方波;若要在一个OOK符号长度内发OFF信号的时候,发送端可关闭一个OOK符号长度的时间。
参见图5,作为示例,图5是信号采用曼彻斯特编码后的波形的一示意图。如图5所示,原始比特为“0 0 1 0 0 1 0 1 1 0”,假设原始比特“0”编码为“10”,原始比特“1”编码为“01”,那么采用曼彻斯特编码后的编码比特为“10 10 01 10 10 01 10 01 01 10”,波形如图5所示。其中,每个编码比特对应的时间长度可认为是一个OFDM符号的长度,也即在一个OFDM符号的长度内发射一个OOK符号,或者说一个OOK符号占一个OFDM符号。接收端在解调信号时,可以比较相邻两个OOK符号内的信号功率(或信号幅度)的相对大小,基于对比结果,确定解调出的信息比特。
另一种可能的方式,在一个OFDM符号的长度内发射至少两个OOK符号,或者说至少两个OOK符号占一个OFDM符号。
参见图6,作为示例,图6是信号采用曼彻斯特编码后的波形的另一示意图。如图6所示,原始比特为“0 0 0 1”,假设原始比特“0”编码为“10”,原始比特“1”编码为“01”,那么采用曼彻斯特编码后的编码比特为“10 10 10 10 01”,波形如图6所示。其中,在一个OFDM符号长度(图6中为2192个采样点)内,发送了8个OOK符号,分别是ON信号-OFF信号-ON信号-OFF信号-ON信号-OFF信号-OFF信号-ON信号。接收端在解调信号时,可以比较相邻两个OOK符号的信号功率(或信号幅度)的相对大小,基于对比结果,确定解调出的信息比特。
可以理解,在本申请实施例中,在一个OFDM符号的长度内可以发射一个OOK符号,或者在一个OFDM符号的长度内也可以发射至少两个OOK符号,对此不予限制。此外,无论是在一个OFDM符号的长度内发射一个OOK符号还是至少两个OOK符号,不限于此曼彻斯特编码。
如前所述,基于曼彻斯特编码的OOK符号在解调时先进行包络检测,再比较相邻两个OOK符号的信号功率(或信号幅度)。通过分析可知不同信噪比的情况下,噪声对信号波形的影响各不相同。
参见图7,作为示例,图7是高信噪比场景下无噪声的信号和有噪声的信号的示意图。如图7所示,在叠加噪声之后,仍然可以较为简单地区分出OOK符号是ON信号还是OFF信号。
参见图8,作为示例,图8是低信噪比场景下无噪声的信号和有噪声的信号的示意图。如图8所示,在叠加噪声之后,难以区分出OOK符号是ON信号还是OFF信号。
基于上述分析,本申请提供一种方案,可以通过提高目标时间段内的信噪比,提升OOK符号的解 调性能,其中,目标时间段可以认为是一个OOK符号的长度。
一种可能的实现方式,在N个时间单元上接收唤醒信号,唤醒信号的调制方式为OOK调制;基于唤醒信号在N个时间单元中各个时间单元上的时间信息,解调唤醒信号,其中,唤醒信号在该N个时间单元中的至少一个时间单元上所占的时间长度小于时间单元的长度。这样,通过设计缩短唤醒信号中功率不为0的部分在一个时间单元上的时间长度,从而提升唤醒信号的幅度,可以将信号能量集中在更短时间内,提升短时间内的信噪比,进而提升唤醒信号的解调性能。
可以理解,本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
还可以理解,本申请中,指示信息所指示的信息,称为待指示信息。在具体实现过程中,对待指示信息进行指示的方式有很多种,例如但不限于,可以直接指示待指示信息,如待指示信息本身或者该待指示信息的索引等。也可以通过指示其他信息来间接指示待指示信息,其中该其他信息与待指示信息之间存在关联关系。还可以仅仅指示待指示信息的一部分,而待指示信息的其他部分则是已知的或者提前约定的。例如,还可以借助预先约定(例如协议规定)的各个信息的排列顺序来实现对特定信息的指示,从而在一定程度上降低指示开销。
下文将结合附图详细说明本申请实施例提供的方法。本申请提供的实施例可以应用于上述图1所示的通信系统中,不作限定。
参见图9,作为示例,图9是本申请实施例提供的一种通信方法900的示意图。方法900可以包括如下步骤。
910,终端设备在N个时间单元上接收来自网络设备的唤醒信号,唤醒信号包括N1个第一信号和N2个第二信号,第一信号指示第一比特值,第二信号指示第二比特值,第一信号的信号功率不为0,第二信号的信号功率为0,N1个第一信号中的每个第一信号占N个时间单元中的一个时间单元,N2个第二信号中的每个第二信号占N个时间单元中的一个时间单元,第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上所占的时间长度大于0且小于或等于时间单元的长度,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N。
相应地,网络设备在N个时间单元上发送唤醒信号。
如前所述,唤醒信号表示终端设备使用唤醒电路收到的信号,也即终端设备使用唤醒电路收到的信号均可称为唤醒信号。作为示例,唤醒信号用于唤醒至少一个终端设备或者至少一组终端设备。
其中,一个时间单元可以是一个符号(symbol)或者几个符号,或者一个或多个迷你时隙(mini-slot),或者一个或多个时隙(slot),或者一个或多个子帧(subframe),或者一个或多个毫秒等等。时间单元也可称为时域单元。可以理解,上述列举的时间单元大小仅仅是为了方便理解本申请的方案,不对本申请实施例的保护范围造成限定。
其中,第一信号指示第一比特值,第二信号指示第二比特值,第一信号的信号功率不为0,第二信号的信号功率为0。基于此可知,唤醒信号的调制方式为OOK调制。其中,第一信号的信号功率不为0,表示第一信号的信号幅度不为0,也即在一个时间单元内(如一个OOK符号内)有信号发出。第二信号的信号功率为0,表示第二信号的信号幅度为0,也即在一个时间单元内(如一个OOK符号内)没有信号发出。第一信号也可称为ON信号,第二信号也可称为OFF信号,关于ON信号和OFF信号,参考前面的术语解释部分的描述,此处不再赘述。作为一示例,第一比特值为“1”,第二比特值为“0”。作为另一示例,第一比特值为“0”,第二比特值为“1”。
以图3所示的示例为例,唤醒信号中包括两个第一信号和两个第二信号,且第一个时间单元和第三个时间单元内的信号为第一信号,该第一信号指示的第一比特值为“1”;第二个时间单元和第四个时间单元内的信号为第二信号,该第二信号指示的第二比特值为“0”。
其中,N1个第一信号中的每个第一信号占N个时间单元中的一个时间单元,N2个第二信号中的每个第二信号占N个时间单元中的一个时间单元。基于此可知,一个第二信号的时间长度为一个时间单元的长度,一个第一信号的时间长度为一个时间单元的长度,也即N个时间单元中每个时间单元上传输一个第一信号或者一个第二信号。第二信号第一信号的信号功率不为0,因此,第一信号中包括功率不为0的部分。可选地,第一信号还包括功率为0的部分。
可以理解,本申请实施例主要以一个第一信号的时间长度为一个时间单元的长度为例进行示例性说明,对此不予限制。例如,也可以定义第一信号的时间长度为:功率不为0的部分在一个时间单元内所占的时间长度。举例来说,若定义第一信号的时间长度为:功率不为0的部分在一个时间单元内所占的时间长度,如果功率不为0的部分在一个时间单元内所占的时间长度小于时间单元的长度,那么一个时间单元上可以发送一个第一信号以及一个功率为0的信号,换句话说,网络设备可以在一个时间单元上的部分时间段发送一个第一信号,该一个时间单元上的其余时间段可以不发送信号;如果功率不为0的部分在一个时间单元内所占的时间长度等于时间单元的长度,那么一个时间单元上可以发送一个第一信号,换句话说,网络设备可以在一个时间单元上发送一个第一信号。
此外,如果定义第一信号的时间长度为:功率不为0的部分在一个时间单元内所占的时间长度,那么第二信号的长度可以等于一个时间单元的长度,即在一个时间单元内不发送信号。或者,第二信号的长度也可以大于或等于一个时间单元的长度,如在采用曼彻斯特编码的情况下,第二信号的长度可能大于或等于一个时间单元的长度。具体来说,在采用曼彻斯特编码的情况下,无论原始比特是“0”还是“1”,一般都会发送一个第一信号和一个第二信号(二者根据先后顺序不同来表征不同含义),此时若第一信号的长度为功率不为0的部分在一个时间单元内所占的时间长度,那么作为示例,第二信号的长度可以为在该时间单元内功率为0的部分以及另一个时间单元的总长度。
下文中为便于说明,以一个第一信号的时间长度为一个时间单元的长度为例进行示例性说明。
其中,第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上所占的时间长度大于0且小于或等于时间单元的长度。基于此可知,第一信号中可以包括功率为0的部分和功率不为0的部分。
第一种可能的实现方式,第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上所占的时间长度大于0且小于时间单元的长度。在该方式下,第一信号中包括功率为0的部分和功率不为0的部分,且第一信号中功率不为0的部分所占的时间长度大于0且小于时间单元的长度,相应地,第一信号中功率为0的部分所占的时间长度大于0且小于时间单元的长度。第一信号中功率为0的部分所占的时间长度和功率不为0的部分所占的时间长度之和,等于时间单元的长度。
基于该实现方式,通过设计缩短第一信号中功率不为0的部分在一个时间单元上的时间长度,从而提升信号的幅度,可以将信号能量集中在更短时间内,提升短时间内的信噪比,进而提升唤醒信号的解调性能。此外,通过减小第一信号中功率不为0的部分在一个时间单元上的时间长度,可以抵抗大多径时延导致的符号间干扰(inter-symbol interference,ISI)。
参见图10,作为示例,图10是多径时延造成的ISI的示意图。
当信道有比较大的多径时延时,接收端接收到的信号的时间跨度相比发射端发出来的信号的时间跨度更长。如图10中的(1)所示,第一信号的拖尾可能会落在下一个时间单元内,从而影响信号解调。当第一信号中功率不为0的部分所占的时间长度大于0且小于时间单元的长度时,如图10中的(2)所示,由于第一信号中功率不为0的部分在一个时间单元上的时间长度进行了缩短,因此第一信号中功率不为0的部分的拖尾可以落在同一个时间单元内,进而不会影响下一个时间单元内的信号。换句话说,第一信号中功率不为0的部分在一个时间单元上的时间长度小于时间单元的长度,可等效视为给时域增加了一个保护间隔,因此可以减小甚至消除信道多径效应带来的ISI。
第二种可能的实现方式,第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上所占的时间长度大于0且等于时间单元的长度。在该方式下,第一信号中仅包括功率为不0的部分,也即第一信号中功率不为0的部分所占的时间长度等于时间单元的长度,第一信号中功率为0的部分所占的时间长度等于0。
参见图11,作为示例,图11是第一信号和第二信号在一个时间单元上的示意图。如图11所示,唤醒信号中包括一个第一信号和一个第二信号,第一信号占两个时间单元中的一个时间单元,第二信号占两个时间单元中的一个时间单元。如图11中的(1)所示,第一信号中仅包括功率不为0的部分,且第一信号中功率不为0的部分所占的时间长度等于时间单元的长度。如图11中的(2)所示,第一信号中包括功率为0的部分和功率不为0的部分,第一信号中功率不为0的部分所占的时间长度大于0且小于时间单元的长度。
920,终端设备解调唤醒信号。
可选地,终端设备基于第一信号的时间信息,解调唤醒信号。
其中,第一信号的时间信息用于确定第一信号中功率不为0的部分在一个时间单元中所占的时间长度。终端设备可基于第一信号中功率不为0的部分在一个时间单元中所占的时间长度,解调唤醒信号。
举例来说,若终端设备知道第一信号中功率不为0的部分在一个时间单元中所占的时间长度,则终端设备可以选择解调对应的时间区间。若终端设备不知道第一信号中功率不为0的部分在一个时间单元中所占的时间长度,则终端设备会解调整个时间单元,会引入更多噪声能量。
假设信号为s(t),噪声为n(t)。以采用曼彻斯特编码,接收端比较两个时间单元内的信号能量来做解调为例。
情况1:若终端设备知道第一信号中功率不为0的部分在一个时间单元中所占的时间长度,那么:
1)信号区间的能量为:
2)噪声区间的能量为:
3)信噪比为:
其中,α表示第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例,可称为占空比,α的取值为[0,1]。表示功率不为0的部分的信号总能量。ES表示功率不为0的部分的信号平均功率。N表示噪声的平均功率。T表示时间单元的长度。可以看到,在终端设备知道第一信号中功率不为0的部分在一个时间单元中所占的时间长度的情况下,终端设备可以仅对功率不为0的部分(长度为αT)做处理。后文中为了简洁,省略对相同或相似情况的说明。
情况2:若终端设备不知道第一信号中功率不为0的部分在一个时间单元中所占的时间长度,那么:
1)信号区间的能量为:
2)噪声区间的能量为:
3)信噪比为:
由此可知,终端设备知道第一信号中功率不为0的部分在一个时间单元中所占的时间长度的情况下,终端设备只能对一个时间单元内的全部信号(长度为T)做处理,信噪比更高。
参见图12,作为示例,图12是各种情况下信噪比的示意图。
图12中的(1)为第一信号中功率不为0的部分在一个时间单元中所占的时间长度为时间单元的长度的情况,也即α=1的情况。图12中的(2)为第一信号中功率不为0的部分在一个时间单元中所占的时间长度小于时间单元的长度,且终端设备知道第一信号中功率不为0的部分在一个时间单元中所占的时间长度的情况,也即α小于1,且终端设备知道α取值的情况。在本示例中,α=0.5。图12中的(3)为第一信号中功率不为0的部分在一个时间单元中所占的时间长度小于时间单元的长度,且终 端设备不知道第一信号中功率不为0的部分在一个时间单元中所占的时间长度的情况,也即α小于1,且终端设备不知道α取值的情况。在本示例中,α=0.5。从图中可看出,在图12中的(1)中,第一信号中功率不为0的部分在一个时间单元中所占的时间长度等于时间单元的长度,因此终端设备是解调整个时间单元,因此,信噪比低于图12中的(2)所示的信噪比。在图12中的(3)中,虽然第一信号中功率不为0的部分在一个时间单元中所占的时间长度小于时间单元的长度,但是由于终端设备不知道第一信号中功率不为0的部分在一个时间单元中所占的时间长度,因此终端设备仍然解调整个时间单元,因此,信噪比低于图12中的(2)所示的信噪比。由此可知,图12中的(2)所示的情况信噪比最高。
可选地,第一信号的时间信息包括以下至少一项:第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率不为0的部分所占的时间长度、第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率为0的部分所占的时间长度。
示例1,第一信号的时间信息为第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例。基于此,终端设备可基于第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例,以及时间单元的长度,确定第一信号中信号功率不为0的部分在一个时间单元中所占的时间长度。
为简洁,在本申请实施例中,将第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例记为占空比,占空比大于0且小于1或等于1。以采用曼彻斯特编码的方式为例来说明,假设采用每2个OFDM符号传递1比特信息的方式。若OFDM符号的长度为L(具体长度可根据子载波间隔大小确定),占空比为α,则第一信号中功率不为0的部分所占的时间长度为α·L,第一信号中功率为0的部分所占的时间长度为(1-α)·L,第二信号所占的时间长度为L。或者,若定义第一信号的时间长度为:功率不为0的部分在一个时间单元内所占的时间长度,那么也可以描述为:第一信号的长度为α·L,第二信号的长度为(2-α)·L。
可选地,N1个第一信号中的各个第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例相同,也即第一信号对应的各个时间单元的占空比相同。
示例2,第一信号的时间信息为第一信号中信号功率不为0的部分所占的时间长度。基于此,终端设备可直接确定第一信号中信号功率不为0的部分在一个时间单元中所占的时间长度。
示例3,第一信号的时间信息为第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例。基于此,终端设备可基于第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例,以及时间单元的长度,确定第一信号中信号功率为0的部分在一个时间单元中所占的时间长度。第一信号中信号功率为0的部分在一个时间单元中所占的时间长度和第一信号中信号功率不为0的部分在一个时间单元中所占的时间长度之和为时间单元的长度,因此,基于第一信号中信号功率为0的部分在一个时间单元中所占的时间长度,可确定第一信号中信号功率不为0的部分在一个时间单元中所占的时间长度。
举例来说,将第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例用β表示,β大于0或者等于0,且β小于1或等于1。以采用曼彻斯特编码的方式为例来说明,假设采用每2个OFDM符号传递1比特信息的方式。若OFDM符号的长度为L(具体长度可根据子载波间隔大小确定),则第一信号中功率为0的部分所占的时间长度为β·L,第一信号中功率不为0的部分所占的时间长度为(1-β)·L,第二信号所占的时间长度为L。或者,若定义第一信号的时间长度为:功率不为0的部分在一个时间单元内所占的时间长度,那么也可以描述为:第一信号的长度为(1-β)·L,第二信号的长度为(1+β)·L。可选地,N1个第一信号中的各个第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例相同。
示例4,第一信号的时间信息为第一信号中信号功率为0的部分所占的时间长度。基于此,终端设备可直接确定第一信号中信号功率为0的部分在一个时间单元中所占的时间长度。第一信号中信号功率为0的部分在一个时间单元中所占的时间长度和第一信号中信号功率不为0的部分在一个时间单元中所占的时间长度之和为时间单元的长度,因此,基于第一信号中信号功率为0的部分在一个时间单元中所占的时间长度,可确定第一信号中信号功率不为0的部分在一个时间单元中所占的时间长度。
上述结合示例1-示例4分别单独描述了各个信息,对此不予限制,例如上述各个信息也可以结合使用。作为示例,下面列举两个示例。
示例5,第一信号的时间信息包括第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例、以及第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例。基于此,终端设备可基于第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例,确定第一信号中信号功率不为0的部分在一个时间单元中所占的时间长度,并且还可以基于第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例,确定第一信号中信号功率为0的部分在一个时间单元中所占的时间长度。
示例6,第一信号的时间信息包括第一信号中信号功率不为0的部分所占的时间长度、以及第一信号中信号功率为0的部分所占的时间长度。基于此,终端设备可直接确定第一信号中信号功率不为0的部分在一个时间单元中所占的时间长度,以及第一信号中信号功率为0的部分在一个时间单元中所占的时间长度。
可以理解,上述示例5和示例6为各项信息结合使用的示例性说明,对此不予限制。例如,第一信号的时间信息包括以下至少两项:第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率不为0的部分所占的时间长度、第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率为0的部分所占的时间长度,也即上述各项信息均可以组合使用。
还可以理解,上述几个示例为示例性说明,任何可以用于确定第一信号中功率不为0的部分在一个时间单元中所占的时间长度的信息,都适用于本申请实施例。
在本申请实施例中,网络设备可确定第一信号的时间信息,进而通知给终端设备。例如,网络设备可配置占空比,并将配置的占空比发送给终端设备,进而终端设备可基于该占空比获知第一信号中功率不为0的部分在一个时间单元中所占的时间长度。
可选地,方法900还包括:网络设备发送指示信息,指示信息指示第一信号的时间信息。相应地,终端设备接收来自网络设备的指示信息,基于此,终端设备可基于网络设备的指示,确定第一信号的时间信息。
作为示例,指示信息可携带于无线资源控制(radio resource control,RRC)信令中。例如,指示信息可通过系统信息块(system information block,SIB)进行配置。
一种可能的实现方式,指示信息为显式指示,也即指示信息直接指示第一信号的时间信息。基于该方式,终端设备可以基于该指示信息直接确定第一信号的时间信息。
另一种可能的实现方式,指示信息为隐式指示,也即指示信息可指示其他信息(如记为信息#A)。基于该方式,终端设备可基于指示信息间接确定第一信号的时间信息,例如终端设备可基于指示信息直接确定信息#A,并且基于信息#A来确定第一信号的时间信息。
举例来说,第一信号的时间信息与信息#A具有关联关系,终端设备基于信息#A,以及该关联关系,可确定第一信号的时间信息。
其中,作为示例,信息#A为同步信号的周期值。基于此,第一信号的时间信息与同步信号的周期值具有关联关系,终端设备基于同步信号的周期值,以及关联关系,可确定第一信号的时间信息。举例来说,网络设备向终端设备发送指示信息,该指示信息指示同步信号的周期值,或者说,指示信息为同步信号的周期值,终端设备基于该指示信息可确定同步信号的周期值,终端设备基于同步信号的周期值,以及第一信号的时间信息与同步信号的周期值之间的关联关系,可确定第一信号的时间信息。
可选地,网络侧或协议可预定义(或支持)至少两种第一信号中信号功率不为0的部分所占的时间长度。下文为便于说明,以第一信号的时间信息为占空比为例进行示例性说明。网络侧或协议可预定义(或支持)至少两种占空比,在实际传输时,网络设备可选择合适的占空比,并通知给终端设备。
举例来说,第一信号长度越短,能量越集中,等效信噪比越高,理论上解调性能越好。但是第一信号长度越短,对残余时偏越敏感。因此需要考虑“能量集中”和“抗时偏”之间的平衡。考虑到时偏大小一方面取决于WUR的时钟精度,另一方面取决于同步信号的间隔(也即周期值)。因此,若网络侧或协议可预定义(或支持)不同的占空比,则网络设备可以灵活选择占空比,以及同步信号的周期值,进而平衡同步信号的开销以及唤醒信号的覆盖性能。此外,不同占空比可适用于不同的网络 部署场景,也即网络设备可根据实际的通信情况选择合适的占空比。
可以理解,若网络侧或协议预定义(或支持)一种第一信号中信号功率不为0的部分所占的时间长度,网络设备可不需要再进行配置,如终端设备可以预先就获知第一信号中信号功率不为0的部分所占的时间长度。
可选地,方法900还包括:网络设备发送配置信息,其中,配置信息包括:第一信号中信号功率不为0的部分在时间单元上的偏移值,或者,第一信号中信号功率为0的部分在时间单元上的偏移值。相应地,终端设备接收来自网络设备的配置信息。
基于此,网络设备可配置第一信号中功率不为0的部分相对于时间单元的偏移值,或者,配置第一信号中功率为0的部分相对于时间单元的偏移值,这样,终端设备可以基于该偏移值获知第一信号中功率不为0的部分在时间单元上的位置,从而确定解调对应的时间区间,来提升解调对应的时间区间信号的信噪比,从而提升解调性能。
其中,第一信号中信号功率不为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率不为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的结束位置之间的偏移值。以图11所示的示例为例,在图11中的(2)中,第一信号中功率不为0的部分所占的时间长度大于0且小于时间单元的长度,且第一信号中信号功率不为0的部分的起始位置与时间单元的起始位置之间的偏移值为0。
其中,第一信号中信号功率为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的结束位置之间的偏移值。以图11所示的示例为例,在图11中的(2)中,第一信号中功率为0的部分所占的时间长度大于0且小于时间单元的长度,且第一信号中信号功率为0的部分的结束位置与时间单元的结束位置之间的偏移值为0。
可以理解,上述网络设备向终端设备指示偏移值为示例性说明,对此不予限制。例如,也可以预定义,如标准预定义偏移值。
在本申请实施例中,关于网络设备如何生成第一信号,不予限制。举例来说,以占空比为例,网络设备生成不同占空比的第一信号,且唤醒信号的波形为OFDM波形时,一种可能的实现方式是,先生成理想的方波信号,再基于最小二乘原则得到与理想方波信号最相似的OFDM信号。
例如,若网络设备希望生成占空比为0.4的第一信号,则可以先生成理想方波bm=[1,1,0,0,0]T,再计算得到频域信号序列,然后映射到对应的子载波上,再经过快速傅里叶逆变换(inverse fast fourier transform,IFFT),从而生成目标占空比的第一信号。作为示例,计算频域信号序列可参考下述公式:
其中,argmax函数表示令argmax后面的公式取到最大值。表示求解得到的频域信号序列。F表示IFFT矩阵截取出的NIFFT×K的矩阵,K为频域信号序列的长度。btarget表示理想信号,即bm。上角标H表示共轭转置,如,AH表示矩阵(或向量)A的共轭转置。
可选地,网络设备还可以配置第一信号中功率不为0的部分的起始位置相对于时间单元边界的偏移值。例如,若希望生成占空比为α=0.4,第一信号中信号功率不为0的部分的起始位置与时间单元的起始位置之间的偏移值为0.2的第一信号,则可以先生成理想方波bm=[0,1,1,0,0]T,再根据上述流程生成第一信号。
可选地,唤醒信号的编码方式可以采用曼彻斯特编码,或者也可以不采用曼彻斯特编码,不予限制。下面分别说明。
情况1,唤醒信号的编码方式不采用曼彻斯特编码。
以信号进行OOK调制为例,一个OOK符号可携带1比特的信息。网络设备将第一信号中功率不为0的部分的长度缩短,即第一信号中功率不为0的部分占一个OOK符号的部分时间;终端设备在接收唤醒信号时,可选取每个OOK符号的部分时间段,将接收的能量与一个门限做对比,来判断接收到的信号是第一信号还是第二信号,从而完成解调。
以图10所示的示例为例,如图10所示,8个OOK符号中可携带8比特信息,该8比特信息如为:10100110。图10中的(1)是未对第一信号中功率不为0的部分的长度进行缩短的示意图,也即第一信号中功率不为0的部分占一个OOK符号。图10中的(2)是将第一信号中功率不为0的部分的长度进行缩短的示意图,也即第一信号中功率不为0的部分占一个OOK符号的部分时间。如图10中的(2)所示,一种可能的实现方式,可以将第一信号中功率不为0的部分的长度缩短一半,也即第一信号中功率不为0的部分占一个OOK符号的前一半时间;终端设备在接收信号时,可选取每个OOK符号的前一半时间,将接收的能量与一个门限做对比,来判断接收到的信号是第一信号还是第二信号,从而完成解调。可以理解,第一信号中功率不为0的部分占一个OOK符号的前一半时间仅为示例性说明,对此不予限制,如前所述,占空比大于0且小于1或等于1。
此外,通过对比图10中的(1)和(2)可知,当对第一信号中功率不为0的部分的长度进行缩短后,第一信号中功率不为0的部分的拖尾可以落在同一个OOK符号内,进而不会影响下一个OOK符号内的信号。
情况2,唤醒信号的编码方式采用曼彻斯特编码。
仍以信号进行OOK调制为例,举例来说,两个OOK符号可携带1比特的原始信息。仍以图10所示的示例为例,如图10所示,8个OOK符号中可携带4比特的原始信息,假设原始比特“0”编码为“10”,原始比特“1”编码为“01”,那么该4比特的原始信息如为:0010。关于其他的相关描述可参考情况1,此处不重复赘述。
可以理解,上述为示例性说明,对此不予限制。例如,唤醒信号的编码方式还可以为曼彻斯特编码。
可选地,唤醒信号的波形为OFDM波形。
作为示例,OFDM的大概原理:一般的发送端的操作至少可以包括:原始比特进行调制(modulation),子载波映射(subcarrier mapping),进行IFFT,并添加循环前缀(cyclic prefix,CP)。一般的接收端的操作至少可以包括:去CP和FFT,然后进行信道估计、频域均衡(frequency domain equalization,FDE)处理,子载波解映射(subcarrier de-mapping),接着解调制得到原始比特。当采用OFDM波形做OOK调制时,发射端的操作可参考上面的描述。接收端的操作可以包括:去CP、包络检测、接着解调制得到原始比特。可以理解,此处关于OFDM的描述只是为便于理解做的示例性说明,其不对本申请实施的保护范围造成限定。
一种可能的情形,一个OFDM符号可对应一个时间单元,如一个OFDM符号对应一个OOK符号。
关于网络设备生成特定占空比的第一信号的方式可以参考前面的描述,此处不再赘述。
参见图13,作为示例,图13是唤醒信号的波形为ODFM波形的一示意图。
如图13所示,唤醒信号采用OOK调制后,得到8个OOK符号。在一个OFDM符号的长度内发射一个OOK符号,或者说一个OOK符号占一个OFDM符号。如图13所示,发射端(如网络设备)发送8个OFDM符号,8个OFDM符号对应8个OOK符号。此外,通过对比图13中的(1)和(2)可知,当对第一信号中功率不为0的部分的长度进行缩短后,第一信号中功率不为0的部分的拖尾可以落在同一个ODFM符号内,进而不会影响下一个ODFM符号内的信号。可以理解,每个OFDM符号中包括CP,CP可位于每个OFDM符号的起始位置,图13中为简洁,未标出。
另一种可能的情形,一个OFDM符号对应至少两个时间单元,如一个OFDM符号对应至少两个OOK符号。关于网络设备生成特定占空比的第一信号的方式可以参考前面的描述,此处不再赘述。例如,一个OFDM符号对应8个OOK符号时,当占空比为α=1,可先生成理想波形bm=[1,0,1,0,0,1,1,0]T,再基于最小二乘原则得到发送的信号。再例如,当占空比为α=0.5,可将理想波形设为bm=[1,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0]T,再基于最小二乘原则得到发送的信号。
参见图14,作为示例,图14是唤醒信号的波形为ODFM波形的另一示意图。
如图14所示,唤醒信号采用OOK调制后,得到8个OOK符号。在一个OFDM符号的长度内发射8个OOK符号,或者说8个OOK符号占一个OFDM符号。如图14所示,发射端(如网络设备)发送1个OFDM符号,1个OFDM符号对应8个OOK符号。此外,通过对比图14中的(1)和(2)可知,当对第一信号中功率不为0的部分的长度进行缩短后,第一信号中功率不为0的部分的拖尾可以落在同一个OOK符号内,进而不会影响下一个OOK符号内的信号。
可以理解,在上述一些实施例中,提到了“传输”,在未作出特别说明的情况下,传输,包括接收和/或发送。例如,传输信号,可以包括接收信号和/或发送信号。
还可以理解,在本申请的各实施例中,“接收”也可替换为“检测”或者“监测”。例如,“接收唤醒信号”也可以替换为“检测唤醒信号”或“监测唤醒信号”。
还可以理解,在本申请的各实施例中,主要以终端设备和网络设备之间的交互为例进行示例性说明,本申请不限于此,终端设备可以替换为接收端设备,接收端设备可以为终端设备或网络设备;网络设备可以替换为发送端设备,发送端设备可以为终端设备或网络设备。示例地,“终端设备”可以替换为“第一终端设备”,“网络设备”可以替换为“第二终端设备”。
还应理解,在本申请各个实施例中涉及到的公式仅是示例性说明,其不对本申请实施例的保护范围造成限定。在计算上述各个涉及的参数的过程中,也可以根据上述公式进行计算,或者基于上述公式的变形进行计算,也可以根据其它方式进行计算以满足公式计算的结果。
还可以理解,本申请的各实施例中的一些可选的特征,在某些场景下,可以不依赖于其他特征,也可以在某些场景下,与其他特征进行结合,不作限定。
还可以理解,本申请的各实施例中的方案可以进行合理的组合使用,并且实施例中出现的各个术语的解释或说明可以在各个实施例中互相参考或解释,对此不作限定。
还可以理解,上述各个方法实施例中,由终端设备实现的方法和操作,也可以由可由终端设备的组成部件(例如芯片或者电路)来实现;此外,由网络设备实现的方法和操作,也可以由可由网络设备的组成部件(例如芯片或者电路)来实现,不作限定。
相应于上述各方法实施例给出的方法,本申请实施例还提供了相应的装置,所述装置包括用于执行上述各个方法实施例相应的模块。该模块可以是软件,也可以是硬件,或者是软件和硬件结合。可以理解的是,上述各方法实施例所描述的技术特征同样适用于以下装置实施例。
参见图15,作为示例,图15是本申请实施例提供的一种通信装置1500的示意图。该装置1500包括收发单元1510和处理单元1520。收发单元1510可以用于实现相应的通信功能。收发单元1510还可以称为通信接口或通信单元。处理单元1520可以用于进行数据或信息的处理。
可选地,该装置1500还包括存储单元,该存储单元可以用于存储指令和/或数据,处理单元1520可以读取存储单元中的指令和/或数据,以使得装置实现前述各个方法实施例。
一种可能的设计,该装置1500可以用于执行上文各个方法实施例中终端设备所执行的动作,这时,该装置1500可以为终端设备或者终端设备的组成部件,收发单元1510用于执行上文方法实施例中终端设备侧的收发相关的操作,处理单元1520用于执行上文方法实施例中终端设备侧的处理相关的操作。
第一种可能的实现方式,收发单元1510,用于在N个时间单元上接收来自网络设备的唤醒信号,唤醒信号包括N1个第一信号和N2个第二信号,第一信号指示第一比特值,第二信号指示第二比特值,第一信号的信号功率不为0,第二信号的信号功率为0,N1个第一信号中的每个第一信号占N个时间单元中的一个时间单元,N2个第二信号中的每个第二信号占N个时间单元中的一个时间单元,第一信号包括功率为0的部分和功率不为0的部分,第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上所占的时间长度大于0且小于时间单元的长度,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N;处理单元1520,用于解调唤醒信号。
可选地,收发单元1510,还用于接收来自网络设备的指示信息,指示信息指示第一信号的时间信息,第一信号的时间信息包括以下至少一项:第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率不为0的部分所占的时间长度、第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率为0的部分所占的时间长度。
可选地,指示信息为同步信号的周期值配置信息,同步信号的周期值与第一信号的时间信息具有关联关系。
可选地,收发单元1510,还用于周期性地接收来自网络设备的同步信号,同步信号的周期值与第一信号的时间信息具有关联关系,第一信号的时间信息包括以下至少一项:第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率不为0的部分所占的时间长度、第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率为0的部分所占的时间长度。
可选地,收发单元1510,还用于接收来自网络设备的配置信息,配置信息包括:第一信号中信号功率不为0的部分在时间单元上的偏移值,或者,第一信号中信号功率为0的部分在时间单元上的偏移值,其中,第一信号中信号功率不为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率不为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的结束位置之间的偏移值,其中,第一信号中信号功率为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的结束位置之间的偏移值。
第二种可能的实现方式,收发单元1510,用于接收来自网络设备的指示信息,指示信息指示第一信号的时间信息,第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上的时间长度大于0且小于或等于时间单元的长度,第一信号的时间信息包括以下至少一项:第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率不为0的部分所占的时间长度、第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率为0的部分所占的时间长度;收发单元1510,还用于在N个时间单元上接收来自网络设备的唤醒信号,唤醒信号包括N1个第一信号和N2个第二信号,第一信号指示第一比特值,第二信号指示第二比特值,第一信号的信号功率不为0,第二信号的信号功率为0,N1个第一信号中的每个第一信号占N个时间单元中的一个时间单元,N2个第二信号中的每个第二信号占N个时间单元中的一个时间单元,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N。
可选地,指示信息为同步信号的周期值配置信息,同步信号的周期值与第一信号的时间信息具有关联关系。
可选地,收发单元1510,还用于接收来自网络设备的配置信息,配置信息包括:第一信号中信号功率不为0的部分在时间单元上的偏移值,或者,第一信号中信号功率为0的部分在时间单元上的偏移值,其中,第一信号中信号功率不为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率不为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的结束位置之间的偏移值,其中,第一信号中信号功率为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的结束位置之间的偏移值。
该装置1500可实现对应于根据本申请实施例的方法实施例中的终端设备执行的步骤或者流程,该装置1500可以包括用于执行本申请实施例的方法实施例中的终端设备执行的方法的单元。各单元执行上述相应步骤的具体过程在上述各方法实施例中已经详细说明,为了简洁,在此不再赘述。
另一种可能的设计,该装置1500可以用于执行上文各个方法实施例中网络设备所执行的动作,这时,该装置1500可以为网络设备或者网络设备的组成部件,收发单元1510用于执行上文方法实施例中网络设备侧的收发相关的操作,处理单元1520用于执行上文方法实施例中网络设备侧的处理相关的操作。
第一种可能的实现方式,处理单元1520,用于生成唤醒信号;收发单元1510,用于在N个时间单 元上发送唤醒信号,唤醒信号包括N1个第一信号和N2个第二信号,第一信号指示第一比特值,第二信号指示第二比特值,第一信号的信号功率不为0,第二信号的信号功率为0,N1个第一信号中的每个第一信号占N个时间单元中的一个时间单元,N2个第二信号中的每个第二信号占N个时间单元中的一个时间单元,第一信号包括功率为0的部分和功率不为0的部分,第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上的时间长度大于0且小于时间单元的长度,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N。
可选地,收发单元1510,还用于发送指示信息,指示信息指示第一信号的时间信息,第一信号的时间信息包括以下至少一项:第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率不为0的部分所占的时间长度、第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率为0的部分所占的时间长度。
可选地,指示信息为同步信号的周期值配置信息,同步信号的周期值与第一信号的时间信息具有关联关系。
可选地,收发单元1510,还用于周期性地发送同步信号,同步信号的周期值与第一信号的时间信息具有关联关系,第一信号的时间信息包括以下至少一项:第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率不为0的部分所占的时间长度、第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率为0的部分所占的时间长度。
可选地,收发单元1510,还用于发送配置信息,配置信息包括:第一信号中信号功率不为0的部分在时间单元上的偏移值,或者,第一信号中信号功率为0的部分在时间单元上的偏移值,其中,第一信号中信号功率不为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率不为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的结束位置之间的偏移值,其中,第一信号中信号功率为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的结束位置之间的偏移值。
第二种可能的实现方式,收发单元1510,用于发送指示信息,指示信息指示第一信号的时间信息,第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上的时间长度大于0且小于或等于时间单元的长度,第一信号的时间信息包括以下至少一项:第一信号中信号功率不为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率不为0的部分所占的时间长度、第一信号中信号功率为0的部分所占的时间长度与时间单元的长度的比例、第一信号中信号功率为0的部分所占的时间长度;收发单元1510,还用于在N个时间单元上发送唤醒信号,唤醒信号包括N1个第一信号和N2个第二信号,第一信号指示第一比特值,第二信号指示第二比特值,第一信号的信号功率不为0,第二信号的信号功率为0,N1个第一信号中的每个第一信号占N个时间单元中的一个时间单元,N2个第二信号中的每个第二信号占N个时间单元中的一个时间单元,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N。
可选地,指示信息为同步信号的周期值配置信息,同步信号的周期值与第一信号的时间信息具有关联关系。
可选地,收发单元1510,还用于网络设备发送配置信息,配置信息包括:第一信号中信号功率不为0的部分在时间单元上的偏移值,或者,第一信号中信号功率为0的部分在时间单元上的偏移值,其中,第一信号中信号功率不为0的部分在时间单元上的偏移值为以下任一项:第一信号中信号功率不为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率不为0的部分的结束位置与时间单元的结束位置之间的偏移值,其中,第一信号中信号功率为0的部分在时间单元上的偏移值为以下任一项:第一信 号中信号功率为0的部分的起始位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的起始位置与时间单元的结束位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的起始位置之间的偏移值、第一信号中信号功率为0的部分的结束位置与时间单元的结束位置之间的偏移值。
该装置1500可实现对应于根据本申请实施例的方法实施例中的网络设备执行的步骤或者流程,该装置1500可以包括用于执行本申请实施例的方法实施例中的网络设备执行的方法的单元。各单元执行上述相应步骤的具体过程在上述各方法实施例中已经详细说明,为了简洁,在此不再赘述。
应理解,这里的装置1500以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(application specific integrated circuit,ASIC)、电子电路、用于执行至少一个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中,本领域技术人员可以理解,装置1500可以具体为上述实施例中的终端设备,可以用于执行上述各方法实施例中与终端设备对应的各个流程和/或步骤;或者,装置1500可以具体为上述实施例中的网络设备,可以用于执行上述各方法实施例中与网络设备对应的各个流程和/或步骤,为避免重复,在此不再赘述。
上述各个方案的装置1500具有实现上述方法中通信设备(如终端设备,又如网络设备)所执行的相应步骤的功能。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至少一个与上述功能相对应的模块;例如收发单元可以由收发机替代(例如,收发单元中的发送单元可以由发送机替代,收发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,上述收发单元1510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。
需要指出的是,图15中的装置可以是前述实施例中的设备,也可以是芯片或者芯片系统,例如:片上系统(system on chip,SoC)。其中,收发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。
参见图16,作为示例,图16是本申请实施例提供另一种通信装置1600的示意图。该装置1600包括处理器1610,处理器1610与存储器1620耦合。可选地,该装置1600还包括存储器1620。存储器1620用于存储计算机程序或指令和/或数据,处理器1610用于执行存储器1620存储的计算机程序或指令,或读取存储器1620存储的数据,以执行上文各方法实施例中的方法。
可选地,处理器1610为至少一个。
可选地,存储器1620为至少一个。
可选地,该存储器1620与该处理器1610集成在一起,或者分离设置。
可选地,如图16所示,该装置1600还包括收发器1630,收发器1630用于信号的接收和/或发送。例如,处理器1610用于控制收发器1630进行信号的接收和/或发送。
作为一种方案,该装置1600用于实现上文各个方法实施例中由终端设备执行的操作。
例如,处理器1610用于执行存储器1620存储的计算机程序或指令,以实现上文各个方法实施例中终端设备的相关操作。例如,图9所示实施例中的终端设备执行的方法。
作为另一种方案,该装置1600用于实现上文各个方法实施例中由网络设备执行的操作。
例如,处理器1610用于执行存储器1620存储的计算机程序或指令,以实现上文各个方法实施例中网络设备的相关操作。例如,图9所示实施例中的网络设备执行的方法。
应理解,本申请实施例中提及的处理器可以是中央处理单元(central processing unit,CPU),还可以是其他通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现成可编程门阵列(field programmable gate array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解,本申请实施例中提及的存储器可以是易失性存储器和/或非易失性存储器。其中,非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically  EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM)。例如,RAM可以用作外部高速缓存。作为示例而非限定,RAM包括如下形式:静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DR RAM)。
需要说明的是,当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时,存储器(存储模块)可以集成在处理器中。
还需要说明的是,本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
参见图17,作为示例,图17是本申请实施例提供一种芯片系统1700的示意图。该芯片系统1700(或者也可以称为处理系统)包括逻辑电路1710以及输入/输出接口(input/output interface)1720。
其中,逻辑电路1710可以为芯片系统1700中的处理电路。逻辑电路1710可以耦合连接存储单元,调用存储单元中的指令,使得芯片系统1700可以实现本申请各实施例的方法和功能。输入/输出接口1720,可以为芯片系统1700中的输入输出电路,将芯片系统1700处理好的信息输出,或将待处理的数据或信令信息输入芯片系统1700进行处理。
具体地,例如,若终端设备安装了该芯片系统1700,逻辑电路1710与输入/输出接口1720耦合,输入/输出接口1720可将唤醒信号输入至逻辑电路1710进行处理。
作为一种方案,该芯片系统1700用于实现上文各个方法实施例中由终端设备执行的操作。
例如,逻辑电路1710用于实现上文方法实施例中由终端设备执行的处理相关的操作,如,图9所示实施例中的终端设备执行的处理相关的操作;输入/输出接口1720用于实现上文方法实施例中由终端设备执行的发送和/或接收相关的操作,如,图9所示实施例中的终端设备执行的发送和/或接收相关的操作。
作为另一种方案,该芯片系统1700用于实现上文各个方法实施例中由网络设备执行的操作。
例如,逻辑电路1710用于实现上文方法实施例中由网络设备执行的处理相关的操作,如,图9所示实施例中的网络设备执行的处理相关的操作;输入/输出接口1720用于实现上文方法实施例中由网络设备执行的发送和/或接收相关的操作,如,图9所示实施例中的网络设备执行的发送和/或接收相关的操作。
本申请实施例还提供一种计算机可读存储介质,其上存储有用于实现上述各方法实施例中由设备执行的方法的计算机指令。
例如,该计算机程序被计算机执行时,使得该计算机可以实现上述方法各实施例中由终端设备执行的方法。
再例如,该计算机程序被计算机执行时,使得该计算机可以实现上述方法各实施例中由网络设备执行的方法。
本申请实施例还提供一种计算机程序产品,包含指令,该指令被计算机执行时以实现上述各方法实施例中由终端设备或网络设备执行的方法。
本申请实施例还提供一种通信系统,该通信系统包括上文各实施例中的终端设备和网络设备。
上述提供的任一种装置中相关内容的解释及有益效果均可参考上文提供的对应的方法实施例,此处不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅是示意性的,例如,所述单元的划分,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,例如至少两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。此外,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括至少一个计算机指令。在计算机上加载和执行所述计算机程序指令时,全部或部分地产生按照本申请实施例所述的流 程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。例如,所述计算机可以是个人计算机,服务器,或者网络设备等。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含至少一个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,DVD)、或者半导体介质(例如固态硬盘(solid state disk,SSD)等。例如,前述的可用介质包括但不限于:U盘、移动硬盘、只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。

Claims (38)

  1. 一种通信方法,其特征在于,包括:
    终端设备在N个时间单元上接收来自网络设备的唤醒信号,所述唤醒信号包括N1个第一信号和N2个第二信号,所述第一信号指示第一比特值,所述第二信号指示第二比特值,所述第一信号的信号功率不为0,所述第二信号的信号功率为0,所述N1个第一信号中的每个第一信号占所述N个时间单元中的一个时间单元,所述N2个第二信号中的每个第二信号占所述N个时间单元中的一个时间单元,所述第一信号包括功率为0的部分和功率不为0的部分,所述第一信号中信号功率不为0的部分在所述N个时间单元中至少一个时间单元上所占的时间长度大于0且小于所述时间单元的长度,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N;
    所述终端设备解调所述唤醒信号。
  2. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    所述终端设备接收来自所述网络设备的指示信息,所述指示信息指示所述第一信号的时间信息,所述第一信号的时间信息包括以下至少一项:所述第一信号中信号功率不为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率不为0的部分所占的时间长度、所述第一信号中信号功率为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率为0的部分所占的时间长度。
  3. 根据权利要求2所述的方法,其特征在于,所述指示信息为同步信号的周期值配置信息,所述同步信号的周期值与所述第一信号的时间信息具有关联关系。
  4. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    所述终端设备周期性地接收来自所述网络设备的同步信号,所述同步信号的周期值与所述第一信号的时间信息具有关联关系,所述第一信号的时间信息包括以下至少一项:所述第一信号中信号功率不为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率不为0的部分所占的时间长度、所述第一信号中信号功率为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率为0的部分所占的时间长度。
  5. 根据权利要求1至4中任一项所述的方法,其特征在于,所述方法还包括:
    所述终端设备接收来自所述网络设备的配置信息,所述配置信息包括:所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值,或者,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值,
    其中,所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的结束位置之间的偏移值,
    其中,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的结束位置之间的偏移值。
  6. 一种通信方法,其特征在于,包括:
    网络设备生成唤醒信号;
    所述网络设备在N个时间单元上发送所述唤醒信号,所述唤醒信号包括N1个第一信号和N2个第二信号,所述第一信号指示第一比特值,所述第二信号指示第二比特值,所述第一信号的信号功率不为0,所述第二信号的信号功率为0,所述N1个第一信号中的每个第一信号占所述N个时间单元中的一个时间单元,所述N2个第二信号中的每个第二信号占所述N个时间单元中的一个时间单元,所述第一信号包括功率为0的部分和功率不为0的部分,所述第一信号中信号功率不为0的部分在所述N 个时间单元中至少一个时间单元上的时间长度大于0且小于所述时间单元的长度,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N。
  7. 根据权利要求6所述的方法,其特征在于,所述方法还包括:
    所述网络设备发送指示信息,所述指示信息指示所述第一信号的时间信息,所述第一信号的时间信息包括以下至少一项:所述第一信号中信号功率不为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率不为0的部分所占的时间长度、所述第一信号中信号功率为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率为0的部分所占的时间长度。
  8. 根据权利要求7所述的方法,其特征在于,所述指示信息为同步信号的周期值配置信息,所述同步信号的周期值与所述第一信号的时间信息具有关联关系。
  9. 根据权利要求6所述的方法,其特征在于,所述方法还包括:
    所述网络设备周期性地发送同步信号,所述同步信号的周期值与所述第一信号的时间信息具有关联关系,所述第一信号的时间信息包括以下至少一项:所述第一信号中信号功率不为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率不为0的部分所占的时间长度、所述第一信号中信号功率为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率为0的部分所占的时间长度。
  10. 根据权利要求6至9中任一项所述的方法,其特征在于,所述方法还包括:
    所述网络设备发送配置信息,所述配置信息包括:所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值,或者,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值,
    其中,所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的结束位置之间的偏移值,
    其中,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的结束位置之间的偏移值。
  11. 一种通信方法,其特征在于,包括:
    终端设备接收来自网络设备的指示信息,所述指示信息指示第一信号的时间信息,所述第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上的时间长度大于0且小于或等于所述时间单元的长度,所述第一信号的时间信息包括以下至少一项:所述第一信号中信号功率不为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率不为0的部分所占的时间长度、所述第一信号中信号功率为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率为0的部分所占的时间长度;
    所述终端设备在所述N个时间单元上接收来自所述网络设备的唤醒信号,所述唤醒信号包括N1个所述第一信号和N2个第二信号,所述第一信号指示第一比特值,所述第二信号指示第二比特值,所述第一信号的信号功率不为0,所述第二信号的信号功率为0,所述N1个第一信号中的每个第一信号占所述N个时间单元中的一个时间单元,所述N2个第二信号中的每个第二信号占所述N个时间单元中的一个时间单元,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N。
  12. 根据权利要求11所述的方法,其特征在于,所述指示信息为同步信号的周期值配置信息,所述同步信号的周期值与所述第一信号的时间信息具有关联关系。
  13. 根据权利要求11或12所述的方法,其特征在于,所述方法还包括:
    所述终端设备接收来自所述网络设备的配置信息,所述配置信息包括:所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值,或者,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值,
    其中,所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的结束位置之间的偏移值,
    其中,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的结束位置之间的偏移值。
  14. 一种通信方法,其特征在于,包括:
    网络设备发送指示信息,所述指示信息指示第一信号的时间信息,所述第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上的时间长度大于0且小于或等于所述时间单元的长度,所述第一信号的时间信息包括以下至少一项:所述第一信号中信号功率不为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率不为0的部分所占的时间长度、所述第一信号中信号功率为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率为0的部分所占的时间长度;
    所述网络设备在所述N个时间单元上发送唤醒信号,所述唤醒信号包括N1个所述第一信号和N2个第二信号,所述第一信号指示第一比特值,所述第二信号指示第二比特值,所述第一信号的信号功率不为0,所述第二信号的信号功率为0,所述N1个第一信号中的每个第一信号占所述N个时间单元中的一个时间单元,所述N2个第二信号中的每个第二信号占所述N个时间单元中的一个时间单元,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N。
  15. 根据权利要求14所述的方法,其特征在于,所述指示信息为同步信号的周期值配置信息,所述同步信号的周期值与所述第一信号的时间信息具有关联关系。
  16. 根据权利要求14或15所述的方法,其特征在于,所述方法还包括:
    所述网络设备发送配置信息,所述配置信息包括:所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值,或者,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值,
    其中,所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的结束位置之间的偏移值,
    其中,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的结束位置之间的偏移值。
  17. 一种通信装置,其特征在于,包括:收发单元和处理单元,
    所述收发单元,用于在N个时间单元上接收来自网络设备的唤醒信号,所述唤醒信号包括N1个第一信号和N2个第二信号,所述第一信号指示第一比特值,所述第二信号指示第二比特值,所述第一信号的信号功率不为0,所述第二信号的信号功率为0,所述N1个第一信号中的每个第一信号占所述N个时间单元中的一个时间单元,所述N2个第二信号中的每个第二信号占所述N个时间单元中的一个时间单元,所述第一信号包括功率为0的部分和功率不为0的部分,所述第一信号中信号功率不为0的部分在所述N个时间单元中至少一个时间单元上所占的时间长度大于0且小于所述时间单元的长度,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N;
    所述处理单元,用于解调所述唤醒信号。
  18. 根据权利要求17所述的装置,其特征在于,
    所述收发单元,还用于接收来自所述网络设备的指示信息,所述指示信息指示所述第一信号的时间信息,所述第一信号的时间信息包括以下至少一项:所述第一信号中信号功率不为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率不为0的部分所占的时间长度、所述第一信号中信号功率为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率为0的部分所占的时间长度。
  19. 根据权利要求18所述的装置,其特征在于,所述指示信息为同步信号的周期值配置信息,所述同步信号的周期值与所述第一信号的时间信息具有关联关系。
  20. 根据权利要求17所述的装置,其特征在于,
    所述收发单元,还用于周期性地接收来自所述网络设备的同步信号,所述同步信号的周期值与所述第一信号的时间信息具有关联关系,所述第一信号的时间信息包括以下至少一项:所述第一信号中信号功率不为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率不为0的部分所占的时间长度、所述第一信号中信号功率为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率为0的部分所占的时间长度。
  21. 根据权利要求17至20中任一项所述的装置,其特征在于,
    所述收发单元,还用于接收来自所述网络设备的配置信息,所述配置信息包括:所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值,或者,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值,
    其中,所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的结束位置之间的偏移值,
    其中,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的结束位置之间的偏移值。
  22. 一种通信装置,其特征在于,包括:收发单元和处理单元,
    所述处理单元,用于生成唤醒信号;
    所述收发单元,用于在N个时间单元上发送所述唤醒信号,所述唤醒信号包括N1个第一信号和N2个第二信号,所述第一信号指示第一比特值,所述第二信号指示第二比特值,所述第一信号的信号功率不为0,所述第二信号的信号功率为0,所述N1个第一信号中的每个第一信号占所述N个时间单元中的一个时间单元,所述N2个第二信号中的每个第二信号占所述N个时间单元中的一个时间单元,所述第一信号包括功率为0的部分和功率不为0的部分,所述第一信号中信号功率不为0的部分在所述N个时间单元中至少一个时间单元上的时间长度大于0且小于所述时间单元的长度,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N。
  23. 根据权利要求22所述的装置,其特征在于,
    所述收发单元,还用于发送指示信息,所述指示信息指示所述第一信号的时间信息,所述第一信号的时间信息包括以下至少一项:所述第一信号中信号功率不为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率不为0的部分所占的时间长度、所述第一信号中信号功率为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率为0的部分所占的时间长度。
  24. 根据权利要求23所述的装置,其特征在于,所述指示信息为同步信号的周期值配置信息,所述同步信号的周期值与所述第一信号的时间信息具有关联关系。
  25. 根据权利要求22所述的装置,其特征在于,
    所述收发单元,还用于周期性地发送同步信号,所述同步信号的周期值与所述第一信号的时间信息具有关联关系,所述第一信号的时间信息包括以下至少一项:所述第一信号中信号功率不为0的部 分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率不为0的部分所占的时间长度、所述第一信号中信号功率为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率为0的部分所占的时间长度。
  26. 根据权利要求22至25中任一项所述的装置,其特征在于,
    所述收发单元,还用于发送配置信息,所述配置信息包括:所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值,或者,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值,
    其中,所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的结束位置之间的偏移值,
    其中,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的结束位置之间的偏移值。
  27. 一种通信装置,其特征在于,包括:收发单元,
    所述收发单元,用于接收来自网络设备的指示信息,所述指示信息指示第一信号的时间信息,所述第一信号中信号功率不为0的部分在N个时间单元中至少一个时间单元上的时间长度大于0且小于或等于所述时间单元的长度,所述第一信号的时间信息包括以下至少一项:所述第一信号中信号功率不为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率不为0的部分所占的时间长度、所述第一信号中信号功率为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率为0的部分所占的时间长度;
    所述收发单元,还用于在所述N个时间单元上接收来自所述网络设备的唤醒信号,所述唤醒信号包括N1个所述第一信号和N2个第二信号,所述第一信号指示第一比特值,所述第二信号指示第二比特值,所述第一信号的信号功率不为0,所述第二信号的信号功率为0,所述N1个第一信号中的每个第一信号占所述N个时间单元中的一个时间单元,所述N2个第二信号中的每个第二信号占所述N个时间单元中的一个时间单元,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N。
  28. 根据权利要求27所述的装置,其特征在于,所述指示信息为同步信号的周期值配置信息,所述同步信号的周期值与所述第一信号的时间信息具有关联关系。
  29. 根据权利要求27或28所述的装置,其特征在于,
    所述收发单元,还用于接收来自所述网络设备的配置信息,所述配置信息包括:所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值,或者,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值,
    其中,所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的结束位置之间的偏移值,
    其中,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的结束位置之间的偏移值。
  30. 一种通信装置,其特征在于,包括:收发单元,
    所述收发单元,用于发送指示信息,所述指示信息指示第一信号的时间信息,所述第一信号中信 号功率不为0的部分在N个时间单元中至少一个时间单元上的时间长度大于0且小于或等于所述时间单元的长度,所述第一信号的时间信息包括以下至少一项:所述第一信号中信号功率不为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率不为0的部分所占的时间长度、所述第一信号中信号功率为0的部分所占的时间长度与所述时间单元的长度的比例、所述第一信号中信号功率为0的部分所占的时间长度;
    所述收发单元,还用于在所述N个时间单元上发送唤醒信号,所述唤醒信号包括N1个所述第一信号和N2个第二信号,所述第一信号指示第一比特值,所述第二信号指示第二比特值,所述第一信号的信号功率不为0,所述第二信号的信号功率为0,所述N1个第一信号中的每个第一信号占所述N个时间单元中的一个时间单元,所述N2个第二信号中的每个第二信号占所述N个时间单元中的一个时间单元,N为大于1的整数,N1和N2为大于0或等于0的整数,且N1+N2=N。
  31. 根据权利要求30所述的装置,其特征在于,所述指示信息为同步信号的周期值配置信息,所述同步信号的周期值与所述第一信号的时间信息具有关联关系。
  32. 根据权利要求30或31所述的装置,其特征在于:
    所述收发单元,还用于发送配置信息,所述配置信息包括:所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值,或者,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值,
    其中,所述第一信号中信号功率不为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率不为0的部分的结束位置与所述时间单元的结束位置之间的偏移值,
    其中,所述第一信号中信号功率为0的部分在所述时间单元上的偏移值为以下任一项:所述第一信号中信号功率为0的部分的起始位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的起始位置与所述时间单元的结束位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的起始位置之间的偏移值、所述第一信号中信号功率为0的部分的结束位置与所述时间单元的结束位置之间的偏移值。
  33. 一种通信装置,其特征在于,包括处理器,所述处理器,用于执行存储器中存储的计算机程序或指令,以使得所述装置执行权利要求1至16中任一项所述的方法。
  34. 根据权利要求33所述的装置,其特征在于,所述装置还包括所述存储器和/或通信接口,所述通信接口与所述处理器耦合,
    所述通信接口,用于输入和/或输出信息。
  35. 根据权利要求17至34中任一项所述的装置,其特征在于,所述通信装置为以下任一项:芯片、芯片系统、或电路。
  36. 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质上存储有计算机程序或指令,当所述计算机程序或指令在通信装置上运行时,使得所述通信装置执行如权利要求1至16中任一项所述的方法。
  37. 一种计算机程序产品,其特征在于,所述计算机程序产品包括用于执行如权利要求1至16中任一项所述的方法的计算机程序或指令。
  38. 一种芯片,其特征在于,所述芯片与存储器耦合,用于读取并执行所述存储器中存储的程序指令,以实现如权利要求1至16中任一项所述的方法。
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