CN117768980A

CN117768980A - Communication method and communication device

Info

Publication number: CN117768980A
Application number: CN202211167586.1A
Authority: CN
Inventors: 薛祎凡; 薛丽霞; 李强
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-09-16
Filing date: 2022-09-23
Publication date: 2024-03-26

Abstract

A communication method and a communication device. The method comprises the following steps: receiving a wake-up signal over N time units, the wake-up signal comprising N1 first signals and N2 second signals, the first signals indicating first bit values and the second signals indicating second bit values, the first signals having a signal power other than 0, the second signals having a signal power of 0, each first signal occupying a time unit, each second signal occupying a time unit, the first signals comprising a portion having a power of 0 and a portion having a power other than 0, wherein the portion having a signal power other than 0 has a time length over at least one time unit that is greater than 0 and less than the length of the time unit, N is an integer greater than 1, N1 and N2 are integers greater than or equal to 0, n1+n2=n; the terminal device demodulates the wake-up signal. The time length of the part of the first signal with the power not being 0 is shortened, the energy of the first signal is concentrated in a shorter time, the signal to noise ratio in the shorter time is improved, and the demodulation performance is further improved.

Description

Communication method and communication device

The present application claims priority from the chinese patent office, application number 202211132097.2, application name "a communication method" filed on month 16 of 2022, 09, the entire contents of which are incorporated herein by reference.

Technical Field

The present application relates to the field of communications, and more particularly, to a communication method and a communication apparatus.

Background

The terminal device may receive the wake-up signal through a separate low power consumption small circuit, such as a wake-up receiver (WUR), and the main receiver may be in a deep sleep state. After the terminal device detects the wake-up signal through the WUR, the terminal device triggers the wake-up of the main receiver. After the primary receiver wakes up, the terminal device may perform data transmission through the primary receiver.

One common way to modulate the wake-up signal is on-off key (OOK) modulation. The OOK modulation mainly refers to modulating information by using whether a signal is transmitted or not, and a corresponding wake-up circuit can receive the signal by adopting an envelope detection method. The OOK modulation technique allows demodulation to be achieved with a receiver of low complexity, thus achieving the goal of low power consumption of the wake-up circuit. Since OOK modulation only uses the amplitude information of the signal, if OOK modulation is used for the wake-up signal, the power consumption of the receiver can be reduced, but the demodulation performance is relatively poor. How to improve the demodulation performance of the wake-up signal by OOK modulation is a problem to be solved.

Disclosure of Invention

The application provides a communication method and a communication device, which are used for improving demodulation performance of a wake-up signal modulated by OOK.

In a first aspect, a communication method is provided, which may be performed by a terminal device, or may also be performed by a component (e.g., a chip or a circuit) of the terminal device, which is not limited. For convenience of description, an example will be described below in terms of execution by the terminal device.

The method may include: the terminal equipment receives a wake-up signal from the network equipment on N time units, wherein the wake-up signal comprises N1 first signals and N2 second signals, the first signals indicate first bit values, the second signals indicate second bit values, the signal power of the first signals is not 0, the signal power of the second signals is 0, each of the N1 first signals occupies one of the N time units, each of the N2 second signals occupies one of the N time units, the first signals comprise a part with the power of 0 and a part with the power of not 0, the time length occupied by the part with the signal power of not 0 in at least one of the N time units is more than 0 and less than the length of the time units, N is an integer which is more than 1, N1 and N2 are integers which are more than 0 or equal to 0, and N1+N2=N; the terminal device demodulates the wake-up signal.

Based on the above technical solution, 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, so that it can be known that the modulation mode of the wake-up signal is On Off Key (OOK) modulation. In addition, by designing the time length of the part of the first signal, the power of which is not 0, on one time unit, that is to say, the time length occupied by the part of the first signal, the power of which is not 0, is larger than 0 and smaller than the time length occupied by the part of the first signal, the energy of the first signal can be concentrated in a shorter time, the signal to noise ratio in a shorter time is improved, and the demodulation performance of the wake-up signal is further improved, compared with the scheme that the time length occupied by the part of the first signal, the power of which is not 0, is the time length occupied by the part of the first signal.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: the terminal device receives indication information from the network device, the indication information indicating time information of a first signal, the time information of the first signal including at least one of: the ratio of the length of time occupied by the portion of the first signal whose signal power is not 0 to the length of the time unit, the length of time occupied by the portion of the first signal whose signal power is not 0, the ratio of the length of time occupied by the portion of the first signal whose signal power is 0 to the length of the time unit, and the length of time occupied by the portion of the first signal whose signal power is 0.

Optionally, the terminal device demodulates the wake-up signal, including: the terminal device demodulates the wake-up signal based on the time information of the first signal.

Based on the above technical solution, the network device may configure the time information of the first signal and indicate the time information to the terminal device, so that the terminal device may demodulate the wake-up signal based on the time length occupied by the portion of the first signal with power other than 0 in one time unit. For example, if the terminal device knows the time length occupied by the portion of the first signal with the power other than 0 in one time unit, the terminal device may select a time interval corresponding to demodulation; if the terminal device does not know the time length occupied by the part with the power different from 0 in the first signal in one time unit, the terminal device takes the whole time unit as the time interval corresponding to demodulation, and more noise energy is introduced. Therefore, the terminal device demodulates the wake-up signal based on the time length occupied by the part with the power not being 0 in the first signal in one time unit, so that more noise energy can be prevented from being introduced, and the demodulation performance of the wake-up signal modulated by OOK is improved.

With reference to the first aspect, in some implementations of the first aspect, the indication information is period value configuration information of a synchronization signal, and a period value of the synchronization signal has an association relationship with time information of the first signal.

Based on the above technical solution, the period value of the synchronization signal has an association relationship with the time information of the first signal, so 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, so that the terminal device can not only learn the period value of the synchronization signal, but also determine the time information of the first signal corresponding to the period value according to the association relationship between the period value of the synchronization signal and the time information of the first signal, thereby saving signaling overhead. In addition, considering that the time length occupied by the part of the first signal with the signal power not being 0 is different and the time offset resistance capability is different, the period of the synchronous signal can affect the time offset maximum value, so that the balance between demodulation performance and time offset resistance can be realized by establishing the association relation between the period value of the synchronous signal and the time information of the first signal.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: the terminal equipment periodically receives a synchronous signal from the network equipment, the period value of the synchronous signal has an association relation with the time information of a first signal, and the time information of the first signal comprises at least one of the following: the ratio of the length of time occupied by the portion of the first signal whose signal power is not 0 to the length of the time unit, the length of time occupied by the portion of the first signal whose signal power is not 0, the ratio of the length of time occupied by the portion of the first signal whose signal power is 0 to the length of the time unit, and the length of time occupied by the portion of the first signal whose signal power is 0.

Based on the above technical solution, the period value of the synchronization signal has an association relationship with the time information of the first signal, so that the terminal device may determine the time information of the first signal based on the period value of the synchronization signal, or may also determine the period value of the synchronization signal based on the time information of the first signal. In this way, the network device 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 acquire the period value of the synchronization signal and the time information of the first signal at the same time, so that signaling overhead can be saved. In addition, considering that the time length occupied by the part of the first signal with the signal power not being 0 is different and the time offset resistance capability is different, the period of the synchronous signal can affect the time offset maximum value, so that the balance between demodulation performance and time offset resistance can be realized by establishing the association relation between the period value of the synchronous signal and the time information of the first signal.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: the terminal device receives configuration information from the network device, the configuration information comprising: the offset value of the part of the first signal with the signal power of not 0 in the time unit, or the offset value of the part of the first signal with the signal power of 0 in the time unit, wherein the offset value of the part of the first signal with the signal power of not 0 in the time unit is any one of the following: an offset value between a start position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, wherein the offset value of the portion of the first signal having a signal power of 0 over the time cell is any of: an offset value between a start position of a portion of the first signal having a signal power of 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power of 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power of 0 and a start position of the time cell, and an offset value between an end position of a portion of the first signal having a signal power of 0 and an end position of the time cell.

Based on the above technical solution, the network device may configure an offset value of a portion of the first signal with power other than 0 with respect to the time unit, or configure an offset value of a portion of the first signal with power other than 0 with respect to the time unit, so that the terminal device may learn, based on the offset value, a position of a portion of the first signal with power other than 0 on the time unit, thereby determining a time interval corresponding to demodulation, and improving a signal-to-noise ratio of a signal in the time interval corresponding to demodulation, thereby improving demodulation performance.

In a second aspect, a communication method is provided, which may be performed by a network device, or may also be performed by a component (e.g., a chip or a circuit) of the network device, which is not limited thereto. For ease of description, the following description will be given by way of example as being executed by a network device.

The method may include: the network equipment generates a wake-up signal; the network device sends a wake-up signal on N time units, the wake-up signal comprising N1 first signals and N2 second signals, the first signals indicating first bit values, the second signals indicating second bit values, the signal power of the first signals being different from 0, the signal power of the second signals being 0, each of the N1 first signals taking up one of the N time units, each of the N2 second signals taking up one of the N time units, the first signals comprising a portion of power 0 and a portion of power different from 0, the length of time of the portion of the first signals of signal power different from 0 over at least one of the N time units being greater than 0 and less than the length of the time units, N being an integer greater than 1, N1 and N2 being integers greater than or equal to 0, and n1+n2=n.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: the network device transmits indication information, wherein the indication information indicates time information of a first signal, and the time information of the first signal comprises at least one of the following: the ratio of the length of time occupied by the portion of the first signal whose signal power is not 0 to the length of the time unit, the length of time occupied by the portion of the first signal whose signal power is not 0, the ratio of the length of time occupied by the portion of the first signal whose signal power is 0 to the length of the time unit, and the length of time occupied by the portion of the first signal whose signal power is 0.

With reference to the second aspect, in some implementations of the second aspect, the indication information is period value configuration information of a synchronization signal, and a period value of the synchronization signal has an association relationship with time information of the first signal.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: the network device periodically transmits a synchronization signal, wherein a period value of the synchronization signal has an association relationship with time information of a first signal, and the time information of the first signal comprises at least one of the following: the ratio of the length of time occupied by the portion of the first signal whose signal power is not 0 to the length of the time unit, the length of time occupied by the portion of the first signal whose signal power is not 0, the ratio of the length of time occupied by the portion of the first signal whose signal power is 0 to the length of the time unit, and the length of time occupied by the portion of the first signal whose signal power is 0.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: the network device sends configuration information, the configuration information comprising: the offset value of the part of the first signal with the signal power of not 0 in the time unit, or the offset value of the part of the first signal with the signal power of 0 in the time unit, wherein the offset value of the part of the first signal with the signal power of not 0 in the time unit is any one of the following: an offset value between a start position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, wherein the offset value of the portion of the first signal having a signal power of 0 over the time cell is any of: an offset value between a start position of a portion of the first signal having a signal power of 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power of 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power of 0 and a start position of the time cell, and an offset value between an end position of a portion of the first signal having a signal power of 0 and an end position of the time cell.

The second aspect and the advantageous effects of each possible design may refer to the description related to the first aspect, and are not repeated here.

In a third aspect, a communication method is provided, which may be performed by a terminal device, or may also be performed by a component (e.g., a chip or a circuit) of the terminal device, which is not limited. For convenience of description, an example will be described below in terms of execution by the terminal device.

The method may include: the terminal device receives indication information from the network device, the indication information indicates time information of a first signal, a time length of a part of the first signal, which has a signal power not being 0, in at least one time unit of the N time units is greater than 0 and less than or equal to the length of the time unit, and the time information of the first signal comprises at least one of the following: the ratio of the length of time occupied by the part of the first signal with the signal power not being 0 to the length of the time unit, the length of time occupied by the part of the first signal with the signal power not being 0, the ratio of the length of time occupied by the part of the first signal with the signal power being 0 to the length of the time unit, and the length of time occupied by the part of the first signal with the signal power being 0; the terminal device receives a wake-up signal from the network device over N time units, the wake-up signal comprising N1 first signals and N2 second signals, the first signals indicating first bit values, the second signals indicating second bit values, the signal power of the first signals being other than 0, the signal power of the second signals being 0, each of the N1 first signals being one of the N time units, each of the N2 second signals being one of the N time units, N being an integer greater than 1, N1 and N2 being integers greater than or equal to 0, and n1+n2=n.

Optionally, the method further comprises: the terminal device demodulates the wake-up signal based on the time information of the first signal.

Based on the above technical solution, the network device may configure the time information of the first signal and indicate the time information to the terminal device, so that the terminal device may demodulate the wake-up signal based on the time length occupied by the portion of the first signal with power other than 0 in one time unit. For example, if the terminal device knows the time length occupied by the portion of the first signal with the power other than 0 in one time unit, the terminal device may select a time interval corresponding to demodulation; if the terminal device does not know the time length occupied by the part with the power different from 0 in the first signal in one time unit, the terminal device can choose to demodulate the whole time unit, and more noise energy can be introduced. Therefore, the terminal equipment demodulates the wake-up signal based on the time length occupied by the part with the power not being 0 in the first signal in one time unit, so that more noise energy can be prevented from being introduced, and the demodulation performance of the wake-up signal is improved. In addition, the length of time of the part of the first signal with the signal power not being 0 on at least one time unit of the N time units is greater than 0 and less than or equal to the length of the time unit, that is, the network side or the protocol may predefine (or support) the length of time occupied by the part of the at least two first signals with the signal power not being 0, and in actual transmission, the network device may select a suitable length according to an actual communication situation or an actual communication scene and notify the terminal device.

With reference to the third aspect, in some implementations of the third aspect, the indication information is period value configuration information of a synchronization signal, and a period value of the synchronization signal has an association relationship with time information of the first signal.

With reference to the third aspect, in certain implementations of the third aspect, the method further includes: the terminal device receives configuration information from the network device, the configuration information comprising: the offset value of the part of the first signal with the signal power of not 0 in the time unit, or the offset value of the part of the first signal with the signal power of 0 in the time unit, wherein the offset value of the part of the first signal with the signal power of not 0 in the time unit is any one of the following: an offset value between a start position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, wherein the offset value of the portion of the first signal having a signal power of 0 over the time cell is any of: an offset value between a start position of a portion of the first signal having a signal power of 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power of 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power of 0 and a start position of the time cell, and an offset value between an end position of a portion of the first signal having a signal power of 0 and an end position of the time cell.

In a fourth aspect, a communication method is provided, which may be performed by a network device, or may also be performed by a component (e.g., a chip or a circuit) of the network device, which is not limited thereto. For ease of description, the following description will be given by way of example as being executed by a network device.

The method may include: the network device sends indication information, the indication information indicates time information of a first signal, a time length of a part of the first signal, the signal power of which is not 0, in at least one time unit of N time units is greater than 0 and less than or equal to the length of the time unit, and the time information of the first signal comprises at least one of the following: the ratio of the length of time occupied by the part of the first signal with the signal power not being 0 to the length of the time unit, the length of time occupied by the part of the first signal with the signal power not being 0, the ratio of the length of time occupied by the part of the first signal with the signal power being 0 to the length of the time unit, and the length of time occupied by the part of the first signal with the signal power being 0; the network device transmits a wake-up signal on N time units, the wake-up signal comprising N1 first signals and N2 second signals, the first signals indicating first bit values, the second signals indicating second bit values, the signal power of the first signals being other than 0, the signal power of the second signals being 0, each of the N1 first signals occupying one of the N time units, each of the N2 second signals occupying one of the N time units, N being an integer greater than 1, N1 and N2 being integers greater than or equal to 0, and n1+n2=n.

With reference to the fourth aspect, in some implementations of the fourth aspect, the indication information is period value configuration information of a synchronization signal, and a period value of the synchronization signal has an association relationship with time information of the first signal.

With reference to the fourth aspect, in certain implementations of the fourth aspect, the method further includes: the network device sends configuration information, the configuration information comprising: the offset value of the part of the first signal with the signal power of not 0 in the time unit, or the offset value of the part of the first signal with the signal power of 0 in the time unit, wherein the offset value of the part of the first signal with the signal power of not 0 in the time unit is any one of the following: an offset value between a start position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, wherein the offset value of the portion of the first signal having a signal power of 0 over the time cell is any of: an offset value between a start position of a portion of the first signal having a signal power of 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power of 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power of 0 and a start position of the time cell, and an offset value between an end position of a portion of the first signal having a signal power of 0 and an end position of the time cell.

The advantages of the fourth aspect and the various possible designs may be referred to in the description related to the third aspect, and will not be repeated here.

With reference to the first aspect to the fourth aspect, in some implementations, a modulation manner of the wake-up signal is on-off keying OOK.

With reference to the first to fourth aspects, in certain implementations, the waveform of the wake-up signal is an orthogonal frequency division multiplexing, OFDM, waveform.

With reference to the first aspect to the fourth aspect, in some implementations, each OFDM symbol is one time unit, or each OFDM symbol includes at least two time units.

With reference to the first aspect to the fourth aspect, in some implementations, the wake-up signal is encoded in manchester.

In a fifth aspect, a communication device is provided, which is configured to perform the method provided in any one of the first to fourth aspects. In particular, the apparatus may comprise means and/or modules, such as a processing unit and/or a communication unit, for performing the method provided by any of the above-mentioned implementations of the first to fourth aspects.

In one implementation, the apparatus is a communication device (e.g., a terminal device, as well as a network device). When the apparatus is a communication device, the communication unit may be a transceiver, or an input/output interface; the processing unit may be at least one processor. Alternatively, the transceiver may be a transceiver circuit. Alternatively, the input/output interface may be an input/output circuit.

In another implementation, the apparatus is a chip, a system-on-chip, or a circuit for use in a communication device (e.g., a terminal device, as well as a network device). When the apparatus is a chip, a system-on-chip or a circuit used in a communication device, the communication unit may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin, or a related circuit on the chip, the system-on-chip or the circuit, or the like; the processing unit may be at least one processor, processing circuit or logic circuit, etc.

In a sixth aspect, there is provided a communication apparatus comprising: a memory for storing a program; at least one processor configured to execute a computer program or instructions stored in a memory to perform a method provided by any one of the implementations of any one of the first to fourth aspects.

In one implementation, the apparatus is a communication device (e.g., a terminal device, as well as a network device).

In another implementation, the apparatus is a chip, a system-on-chip, or a circuit for use in a communication device (e.g., a terminal device, as well as a network device).

In a seventh aspect, the present application provides a processor configured to perform the method provided in the above aspects.

The operations such as transmitting and acquiring/receiving, etc. related to the processor may be understood as operations such as output and input of the processor, and may also be understood as operations such as transmitting and receiving by the radio frequency circuit and the antenna, if not specifically stated, or if not contradicted by actual function or inherent logic in the related description, which is not limited in this application.

In an eighth aspect, a computer readable storage medium is provided, the computer readable storage medium storing program code for execution by a device, the program code comprising instructions for performing the method provided by any one of the implementations of any one of the first to fourth aspects.

In a ninth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method provided by any one of the implementations of any one of the first to fourth aspects.

In a tenth aspect, a chip is provided, the chip including a processor and a communication interface, the processor reading instructions stored on a memory through the communication interface, and executing the method provided by any one of the implementations of the first to fourth aspects.

Optionally, as an implementation manner, the chip further includes a memory, where a computer program or an instruction is stored in the memory, and the processor is configured to execute the computer program or the instruction stored in the memory, and when the computer program or the instruction is executed, the processor is configured to perform a method provided by any one of the implementation manners of the first aspect to the fourth aspect.

An eleventh aspect provides a communication system comprising the above terminal device and network device.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system 100 suitable for use in embodiments of the present application.

Fig. 2 is a schematic diagram of a main circuit and a wake-up circuit.

Fig. 3 is a waveform diagram of a signal when OOK modulation is used.

Fig. 4 is a schematic waveform diagram of a signal after it passes through a channel.

Fig. 5 is a schematic diagram of a signal after manchester encoding.

Fig. 6 is another schematic diagram of the waveform of a signal after manchester encoding.

Fig. 7 is a schematic diagram of a noise-free signal and a noisy signal in a high signal-to-noise scenario.

Fig. 8 is a schematic diagram of a noise-free signal and a noisy signal in a low signal-to-noise scenario.

Fig. 9 is a schematic diagram of a communication method 900 according to an embodiment of the present application.

Fig. 10 is a schematic diagram of ISI due to multipath delays.

Fig. 11 is a schematic diagram of the first signal and the second signal over a time unit.

Fig. 12 is a schematic diagram of signal-to-noise ratios in various cases.

Fig. 13 is a schematic diagram showing the waveform of the wake-up signal as an ODFM waveform.

Fig. 14 is another schematic diagram of the wake-up signal with an ODFM waveform.

Fig. 15 is a schematic diagram of a communication device 1500 according to an embodiment of the present application.

Fig. 16 is a schematic diagram of another communication device 1600 provided in an embodiment of the present application.

Fig. 17 is a schematic diagram of a chip system 1700 according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

The technical scheme provided by the application can be applied to various communication systems, such as: fifth generation (5th generation,5G) or New Radio (NR) systems, long term evolution (long term evolution, LTE) systems, LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD) systems, and the like. The technical scheme provided by the application can also be applied to future communication systems, such as a sixth generation mobile communication system. The technical solutions provided herein may also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (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.

The terminal device in the embodiments of the present application may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment.

The terminal device may be a device that provides voice/data to a user, e.g., a handheld device with wireless connection, an in-vehicle device, etc. Currently, some examples of terminals are: a mobile phone, tablet, laptop, palmtop, mobile internet device (mobile internet device, MID), wearable device, virtual Reality (VR) device, augmented reality (augmented reality, AR) device, wireless terminal in industrial control (industrial control), wireless terminal in unmanned (self driving), wireless terminal in teleoperation (remote medical surgery), wireless terminal in smart grid (smart grid), wireless terminal in transportation security (transportation safety), wireless terminal in smart city (smart city), wireless terminal in smart home (smart home), cellular phone, cordless phone, session initiation protocol (session initiation protocol, SIP) phone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication function, computing device or other processing device connected to wireless modem, wearable device, terminal device in 5G network or terminal in future evolved land mobile communication network (public land mobile network), and the like, without limiting the present application.

By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

In the embodiment of the present application, the device for implementing the function of the terminal device may be the terminal device, or may be a device capable of supporting the terminal device to implement the function, for example, a chip system or a chip, and the device may be installed in the terminal device. In the embodiment of the application, the chip system may be formed by a chip, and may also include a chip and other discrete devices.

The network device in the embodiments of the present application may be a device for communicating with a terminal device, which may also be referred to as an access network device or a radio access network device, e.g. the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (radio access network, RAN) node (or device) that accesses the terminal device to the wireless network. The base station may broadly cover or replace various names in the following, such as: a node B (NodeB), an evolved NodeB (eNB), a next generation NodeB (gNB), a relay station, an access point, a transmission point (transmitting and receiving point, TRP), a transmission point (transmitting point, TP), a master station, a secondary station, a multi-mode wireless (motor slide retainer, MSR) node, a home base station, a network controller, an access node, a wireless node, an Access Point (AP), a transmission node, a transceiver node, a baseband unit (BBU), a remote radio unit (remote radio unit, RRU), an active antenna unit (active antenna unit, AAU), a radio head (remote radio head, RRH), a Central Unit (CU), a Distributed Unit (DU), a positioning node, and the like. 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 for placement within the aforementioned device or apparatus. The base station may be a mobile switching center, a device that performs a base station function in D2D, V2X, M M communication, a network side device in a 6G network, a device that performs a base station function in a future communication system, or the like. The base stations may support networks of the same or different access technologies. The embodiment of the application does not limit the specific technology and the specific device form adopted by the network device.

The base station may be fixed or mobile. For example, a helicopter or drone may be configured to act as a mobile base station, and one or more cells may move according to the location of the mobile base station. In other examples, a helicopter or drone may be configured to function as a device to communicate with another base station.

In some deployments, the network device mentioned in the embodiments of the present application may be a device including a CU, or a DU, or a device including a CU and a DU, or a device of a control plane CU node (central unit-control plane, CU-CP) and a user plane CU node (central unit-user plane, CU-UP) of a user plane, and a DU node.

Network devices and terminal devices may be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; the device can be deployed on the water surface; but also on aerial planes, balloons and satellites. In the embodiment of the application, the scene where the network device and the terminal device are located is not limited.

A communication system suitable for use in embodiments of the present application will first be briefly described in conjunction with fig. 1, as follows.

Referring to fig. 1, by way of example, fig. 1 is a schematic diagram of a wireless communication system 100 suitable for use in embodiments of the present application. As shown in fig. 1, the wireless communication system 100 may include at least one network device, such as the network device 110 shown in fig. 1, and the wireless communication system 100 may further include at least one terminal device, such as the terminal device 120 shown in fig. 1. For example, the network device and the terminal device may each be configured with multiple antennas, and the network device and the terminal device may communicate using multiple antenna technology.

Wherein, when the network device and the terminal device communicate, the network device can manage one or more cells, and one cell can comprise at least one terminal device. Alternatively, the network device 110 and the terminal device 120 constitute a single-cell communication system, assuming that the cell is denoted as cell #1. Network device 110 may be a network device in cell #1 or network device 110 may serve a terminal device (e.g., terminal device 120) in cell #1.

A cell is understood to be an area within the coverage of a radio signal of a network device.

It should be appreciated that fig. 1 is a simplified schematic diagram that is merely illustrative for ease of understanding, and that other network devices or other terminal devices may also be included in the wireless communication system 100, which are not shown in fig. 1.

To facilitate an understanding of the embodiments of the present application, the terms referred to in this application are briefly described.

1. A wake-up circuit: or Wake Up Receiver (WUR) or wake up module, may be understood as a circuit used by the terminal device in the idle state or may be understood as a separate low power consumption small circuit. The low-power consumption small circuit can be realized by using a single small circuit or chip with a simple structure, and the power consumption is lower. The signal received by the terminal device using the wake-up circuit may be referred to as wake-up signal/radio, WUS/WUR, for example. It will be appreciated that the wake-up circuit is only a name given for distinction, its specific name does not limit the scope of protection of the present application, e.g. without loss of generality, the wake-up circuit may also be described as a first circuit (or a first module).

The signal received by the terminal device using the wake-up circuit may be referred to as being transmitted over a wake-up link, wherein the wake-up link characterizes a connection between the terminal device and the network device as a logical concept rather than as a physical entity. It may be understood that the wake-up link is only a name made for distinction, and its specific name does not limit the protection scope of the present application, and in the embodiment of the present application, the wake-up link is described as the first link without loss of generality. It should also be understood that the wake-up signal is just one example naming, with respect to which the present application is not limited.

2. The main circuit comprises: or referred to as a primary receiver or primary module, is understood to be a circuit used by the terminal device when transmitting data normally, or when transmitting data in a connected state. When the terminal equipment uses the main circuit to transmit data, the power consumption is high. It will be appreciated that the primary circuit is just a name given for distinction, its specific name does not limit the scope of protection of the present application, for example, without loss of generality, the primary circuit may also be described as a second circuit (or second module). Hereinafter collectively described as a main circuit.

The signals received by the terminal device using the main circuit may be referred to as being transmitted over the main circuit, wherein the main circuit characterizes a connection between the terminal device and the network device as a logical concept, not as a physical entity. It may be appreciated that the primary link is only a naming for distinction, and its specific naming does not limit the protection scope of the present application, and in the embodiment of the present application, the primary link is described as the second link without loss of generality.

Hereinafter, for convenience of description, a signal transmitted by the terminal device using the wake-up circuit is referred to as a wake-up signal, and a signal transmitted by the terminal device using the main circuit is referred to as a data signal.

Referring to fig. 2, fig. 2 is a schematic diagram of a main circuit and a wake-up circuit, as an example.

As shown in fig. 2, the terminal device may receive (or detect) a wake-up signal through a wake-up circuit, and the terminal device may receive a data signal through a main circuit. It is assumed that the terminal device receives a wake-up signal via a wake-up circuit. If the terminal equipment does not detect the wake-up signal, the wake-up circuit is continuously used for receiving the wake-up signal, and the main circuit can be in a closed state (or a sleep state); if the terminal device detects the wake-up signal, the wake-up of the main circuit is triggered, i.e. the main circuit is put/switched into an on state (or called an operating state or called an active state). After the main circuit is turned on, the terminal device may transmit a data signal through the main circuit.

3. On Off Key (OOK) modulation: the information is modulated by using the signal transmission or not, and the corresponding wake-up circuit can receive the signal by adopting an envelope detection method. The OOK modulation technique allows demodulation to be achieved with a receiver of low complexity, thus achieving the goal of low power consumption of the wake-up circuit. To ensure power consumption benefits, the wake-up signal may employ OOK modulation. It will be appreciated that other modulation schemes, such as frequency shift keying (frequency shift keying, FSK) modulation, may be used for the wake-up signal, and are not limited thereto.

When the signal is OOK modulated, each bit (i.e., the encoded bit) may correspond to a symbol (symbol). Equivalently, a symbol may be referred to as a chip (chip), or other name, without limitation.

For example, when the bit (bit) is "1", there is a signal emission within the symbol length (i.e., the signal transmission power within the symbol length is not 0); when the bit is "0", no signal is sent within the symbol length (i.e., the signal transmission power within the symbol length is 0). Alternatively, it is also understood that in OOK modulation, if energy is transmitted, it represents "1", and if energy is not transmitted, it represents "0".

For another example, when the bit is "0", there is a signal emission within the symbol length (i.e., the signal emission power within the symbol length is not 0); when the bit is "1", no signal is sent in the symbol length (i.e., the signal transmission power in the symbol length is 0). Alternatively, it is also understood that in OOK modulation, if energy is transmitted, it represents "0", and if energy is not transmitted, it represents "1".

Hereinafter, for convenience of description, mainly, when the bit is "1", a signal is sent out in the symbol length; when the bit is "0", no signal is sent out for the symbol length for illustrative purposes.

In addition, for convenience of description, if a signal is sent out in one symbol, the signal is denoted as an ON signal; no signal is sent in one symbol and this signal is noted as OFF signal. When the bit is '1', the signal is sent out in the length of the symbol; when the bit is "0", no signal is sent within the symbol length, for example, the ON signal indicates that the information bit is "1", and the OFF signal indicates that the information bit is "0".

In addition, OOK symbols mentioned hereinafter represent symbols obtained by OOK modulation. The OOK symbol may be an ON signal, for example, or may be an OFF signal. For example, when the information bit is "1", the OOK symbol obtained by OOK modulation is an ON signal, and when the information bit is "0", the OOK symbol obtained by OOK modulation is an OFF signal. The OOK symbols may also be referred to as OOK signals, and are collectively described below in terms of OOK symbols.

Referring to fig. 3, fig. 3 is a schematic waveform diagram of a signal using OOK modulation, as an example.

As an example, assume that when the bit is "1", there is a signal within the OOK symbol length; when the bit is "0", no signal is sent for the OOK symbol length, so the waveform shown in fig. 3 may represent four bits of "0100", i.e., the first is an OFF signal, the second is an ON signal, and the third and fourth are OFF signals. As shown in fig. 3, a communication system generally uses a certain frequency (frequency) for transmission, and a transmission signal needs to be modulated on a carrier. At the receiving end, the receiving end detects the envelope (or energy) of the received signal and judges whether the OOK symbol corresponds to the bit "0" or the bit "1", thereby completing demodulation.

After the signal passes through the channel, distortion may occur due to the influence of the channel state, etc. Taking the OOK modulation waveform shown in fig. 3 as an example, the waveform shown in fig. 3 may become the waveform shown in fig. 4 at the receiving end.

Referring to fig. 4, fig. 4 is a schematic waveform diagram of a signal after passing through a channel, as an example. To determine whether the signal corresponds to bit "0" or bit "1", the terminal device may compare the received signal level value with a threshold (the threshold is shown in dashed lines in fig. 4). For example, if the signal level value received by the terminal device is greater than the threshold, it indicates that the signal corresponds to bit "1"; if the signal level value received by the terminal equipment is smaller than the threshold, the signal corresponding bit is 0. But setting the threshold is difficult. For example, if the threshold is not properly selected, demodulation errors may result. To solve this problem, one possible way is to use manchester encoding.

4. Manchester encoding: is a two-phase code, and can represent bit "0" or bit "1" by the high-low transition of the level. For example, by manchester encoding, the original bit "0" may be encoded as the bit "10", the original bit "1" may be encoded as the bit "01", and the bits after the original bit encoding, such as the bits "10" and "01", may be referred to as encoded bits for distinction. When the transmitting end transmits signals, 2 OOK symbols can be used to transmit 1-bit original information, if the original bit "0" is encoded into the bit "10" and the original bit "1" is encoded into the bit "01", the original bit "0" corresponds to one ON signal followed by one OFF signal, and the original bit "1" corresponds to one OFF signal followed by one ON signal. When demodulating the manchester encoded signal, the receiving end can compare the relative magnitudes of the signal powers (or signal amplitudes) in two adjacent OOK symbols. If the signal power (or signal amplitude) in the preceding OOK symbol is greater than the signal power (or signal amplitude) in the following OOK symbol, then the received information bit is considered to be "0", otherwise the received information bit is considered to be "1". In this way, the selection of absolute thresholds for making decisions can be avoided.

It will be appreciated that the foregoing description is given by taking the original bit "0" encoded as the bit "10" and the original bit "1" encoded as the bit "01" as an example, and this is not a limitation. For example, the original bit "0" is encoded as bit "01", and the original bit "1" is encoded as bit "10".

As an example, the signal may be generated based on an orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) transmitter, i.e. the modulation of the signal may be performed with an OFDM transmitter.

One possible way is to transmit an OOK symbol within the length of an OFDM symbol, or an OOK symbol occupies one OFDM symbol. For example, if an ON signal is to be sent within an OOK symbol length, the transmitting end may send a specific signal, so that the contour of the signal within the OOK symbol length resembles a square wave as much as possible; if the OFF signal is to be sent within one OOK symbol length, the transmitting end may close the time of one OOK symbol length.

Referring to fig. 5, fig. 5 is a schematic diagram of a waveform of a signal after manchester encoding, as an example. As shown in fig. 5, the original bit is "0 01 0 01 01 10", and assuming that the original bit "0" is encoded as "10" and the original bit "1" is encoded as "01", the encoded bit after manchester encoding is "10 10 01 10 10 01 10 01 01 10", and the waveform is as shown in fig. 5. The time length corresponding to each code 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. When the receiving end demodulates the signal, the relative magnitudes of the signal power (or signal amplitude) in two adjacent OOK symbols can be compared, and the demodulated information bits can be determined based on the comparison result.

In another possible way, at least two OOK symbols are transmitted within the length of one OFDM symbol, or at least two OOK symbols occupy one OFDM symbol.

Referring to fig. 6, fig. 6 is another schematic diagram of a waveform of a signal after manchester encoding, as an example. As shown in fig. 6, the original bit is "0" 01", and assuming that the original bit" 0 "is encoded as" 10 "and the original bit" 1 "is encoded as" 01", the encoded bit after manchester encoding is" 10 10 10 10 01", and the waveform is shown in fig. 6. In this case, 8 OOK symbols, ON signal-OFF signal-ON signal, are transmitted within one OFDM symbol length (2192 samples in fig. 6). When the receiving end demodulates the signal, the relative magnitudes of the signal power (or signal amplitude) of two adjacent OOK symbols can be compared, and the demodulated information bits can be determined based on the comparison result.

It will be appreciated that in the embodiments of the present application, one OOK symbol may be transmitted within the length of one OFDM symbol, or at least two OOK symbols may be transmitted within the length of one OFDM symbol, which is not limited. Further, whether one OOK symbol or at least two OOK symbols are transmitted within the length of one OFDM symbol is not limited to this manchester encoding.

As described above, the OOK symbols based on manchester encoding are envelope-detected during demodulation, and then the signal powers (or signal amplitudes) of two adjacent OOK symbols are compared. The influence of noise on the signal waveform is different under the condition that different signal-to-noise ratios are known through analysis.

Referring to fig. 7, fig. 7 is a schematic diagram of a noise-free signal and a noisy signal in a high signal-to-noise scenario, as an example. As shown in fig. 7, after the noise is superimposed, it is still possible to distinguish whether the OOK symbol is an ON signal or an OFF signal relatively simply.

Referring to fig. 8, fig. 8 is a schematic diagram of a noise-free signal and a noise-free signal in a low signal-to-noise scenario, as an example. As shown in fig. 8, after the noise is superimposed, it is difficult to distinguish whether the OOK symbol is an ON signal or an OFF signal.

Based on the analysis, the present application provides a scheme that can improve the demodulation performance of OOK symbols by improving the signal-to-noise ratio in a target time period, where the target time period may be considered as a length of OOK symbols.

One possible implementation way is to receive wake-up signals on N time units, where the wake-up signals are modulated by OOK; demodulating the wake-up signal based on time information of the wake-up signal on each of the N time units, wherein the wake-up signal occupies less time than the time unit on at least one of the N time units. Therefore, the time length of the part with the power not being 0 in the wake-up signal on one time unit is shortened, so that the amplitude of the wake-up signal is improved, the signal energy can be concentrated in a shorter time, the signal-to-noise ratio in the shorter time is improved, and the demodulation performance of the wake-up signal is further improved.

It will be appreciated that the term "and/or" is merely one association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It is also understood that, in the present application, the information indicated by the indication information is referred to as information to be indicated. In a specific implementation process, there are various ways to indicate the information to be indicated, for example, but not limited to, the information to be indicated may be directly indicated, such as the information to be indicated itself or an index of the information to be indicated. The information to be indicated can also be indicated indirectly by indicating other information, wherein the other information and the information to be indicated have an association relation. 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. For example, the indication of the specific information may also be achieved by means of a pre-agreed (e.g., protocol-specified) arrangement sequence of the respective information, thereby reducing the indication overhead to some extent.

The method provided by the embodiment of the present application will be described in detail below with reference to the accompanying drawings. The embodiments provided in the present application may be applied to the communication system shown in fig. 1 and are not limited thereto.

Referring to fig. 9, fig. 9 is a schematic diagram of a communication method 900 according to an embodiment of the present application, as an example. The method 900 may include the following steps.

910, the terminal device receives a wake-up signal from the network device over N time units, the wake-up signal comprising N1 first signals and N2 second signals, the first signals indicating first bit values, the second signals indicating second bit values, the signal power of the first signals being different from 0, the signal power of the second signals being 0, each of the N1 first signals being one of the N time units, each of the N2 second signals being one of the N time units, the length of time the portion of the first signals having the signal power of not 0 is greater than 0 and less than or equal to the length of the time unit over at least one of the N time units, N being an integer greater than 1, N1 and N2 being integers greater than or equal to 0, and n1+n2=n.

Accordingly, the network device transmits a wake-up signal over N time units.

As mentioned above, the wake-up signal indicates a signal received by the terminal device using the wake-up circuit, i.e. the signal received by the terminal device using the wake-up circuit may be referred to as a wake-up signal. As an example, the wake-up signal is used to wake up at least one terminal device or at least one group of terminal devices.

Wherein a time unit may be one symbol (symbol) or several symbols, or one or more mini-slots (slot), or one or more subframes (subframe), or one or more milliseconds, etc. The time units may also be referred to as time domain units. It will be appreciated that the above-listed time unit sizes are merely for convenience in understanding the solution of the present application, and do not limit the scope of protection 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. Based on this, the modulation scheme 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 in a time unit (for example, in an OOK symbol). The signal power of the second signal is 0, which means that the signal amplitude of the second signal is 0, i.e. no signal is emitted within a time unit (e.g. within an OOK symbol). The first signal may also be referred to as an ON signal and the second signal may also be referred to as an OFF signal, and with respect to the ON signal and the OFF signal, reference is made to the description of the foregoing term explanation section, which is not repeated here. As an example, the first bit value is "1" and the second bit value is "0". As another example, the first bit value is "0" and the second bit value is "1".

Taking the example shown in fig. 3 as an example, 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, and the first bit value indicated by the first signals is "1"; the signals in the second time unit and the fourth time unit are second signals indicating a second bit value of "0".

Wherein 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. Based on this, the time length of one second signal is one time unit, and the time length of one first signal is one time unit, that is, one first signal or one second signal is transmitted on each of the N time units. Second signal the signal power of the first signal is not 0, and therefore the first signal includes a portion with a power other than 0. Optionally, the first signal further comprises a portion of power 0.

It should be understood that the embodiments of the present application mainly take the length of one time unit as an example for illustration, and are not limited thereto. For example, the time length of the first signal may also be defined as: the fraction of power other than 0 occupies a time period within a time unit. For example, if the time length of the first signal is defined as: if the portion with power other than 0 occupies a time length in one time unit that is less than the length of the time unit, then a first signal and a signal with power of 0 may be transmitted in one time unit, in other words, the network device may transmit a first signal in a portion of the time period in one time unit, and the rest of the time period in one time unit may not transmit signals; if the fraction of power other than 0 occupies a time period equal to the length of the time period, a first signal may be transmitted over a time period, in other words, the network device may transmit a first signal over a time period.

Furthermore, if the time length of the first signal is defined as: the portion of power other than 0 occupies a time period of one time unit, and then the length of the second signal may be equal to the length of one time unit, i.e., no signal is transmitted in one time unit. Alternatively, the length of the second signal may be greater than or equal to the length of one time unit, as in the case of manchester encoding, the length of the second signal may be greater than or equal to the length of one time unit. In particular, in the case of manchester encoding, whether the original bit is "0" or "1", a first signal and a second signal (both characterized by different meanings according to their order) are generally transmitted, where if the length of the first signal is the length of time occupied by a portion of power other than 0 in one time unit, then the length of the second signal may be, as an example, the total length of the portion of power 0 in the time unit and the other time unit.

Hereinafter, for convenience of explanation, an example will be given in which the length of one first signal is taken as the length of one time unit.

The time length occupied by the part of the first signal, the signal power of which is not 0, on at least one time unit in the N time units is greater than 0 and less than or equal to the length of the time unit. Based on this, a portion with power of 0 and a portion with power other than 0 may be included in the first signal.

In a first possible implementation manner, the portion of the first signal with the signal power other than 0 occupies a time length of more than 0 and less than a time length of at least one time unit of the N time units. In this manner, the first signal includes a portion with power of 0 and a portion with power other than 0, and the portion with power other than 0 in the first signal occupies a time length greater than 0 and less than a length of a time unit, and correspondingly, the portion with power of 0 in the first signal occupies a time length greater than 0 and less than a length of a time unit. The sum of the length of time occupied by the portion of the first signal having a power of 0 and the length of time occupied by the portion of the first signal having a power other than 0 is equal to the length of the time unit.

Based on the implementation mode, the time length of the part with the power not being 0 in the first signal on one time unit is shortened, so that the amplitude of the signal is improved, the signal energy can be concentrated in a shorter time, the signal-to-noise ratio in the shorter time is improved, and the demodulation performance of the wake-up signal is further improved. In addition, inter-symbol interference (inter-symbol interference, ISI) caused by large multipath delays can be counteracted by reducing the length of time over a time unit for portions of the first signal that are not 0 in power.

Referring to fig. 10, fig. 10 is a schematic diagram of ISI due to multipath delays, as an example.

When the channel has larger multipath, the time span of the signal received by the receiving end is longer than that of the signal sent by the transmitting end. As shown in fig. 10 (1), the tail of the first signal may fall within the next time unit, thereby affecting signal demodulation. When the length of time occupied by the portion of the first signal with power other than 0 is greater than 0 and less than the length of time unit, as shown in (2) of fig. 10, since the length of time of the portion of the first signal with power other than 0 is shortened in one time unit, the tail of the portion of the first signal with power other than 0 can fall in the same time unit, so that the signal in the next time unit is not affected. In other words, the time length of the portion of the first signal with the power other than 0 in one time unit is smaller than the time length of the time unit, which can be equivalently regarded as adding a guard interval to the time domain, so that ISI caused by multipath effects of the channel can be reduced or even eliminated.

In a second possible implementation manner, the length of time occupied by the portion of the first signal with the signal power other than 0 on at least one time unit of the N time units is greater than 0 and equal to the length of the time unit. In this manner, only the portion of the first signal having the power of not 0 is included, that is, the portion of the first signal having the power of not 0 occupies a time length equal to the length of the time unit, and the portion of the first signal having the power of 0 occupies a time length equal to 0.

Referring to fig. 11, fig. 11 is a schematic diagram of the first signal and the second signal over one time unit as an example. As shown in fig. 11, the wake-up signal includes a first signal and a second signal, where the first signal occupies one of the two time units, and the second signal occupies one of the two time units. As shown in (1) in fig. 11, only a portion of the first signal having a power other than 0 is included, and the portion of the first signal having a power other than 0 occupies a time length equal to the length of the time unit. As shown in (2) of fig. 11, the first signal includes a portion with power of 0 and a portion with power other than 0, and the portion with power other than 0 in the first signal occupies a time length greater than 0 and less than the length of the time unit.

920, the terminal device demodulates the wake-up signal.

Optionally, the terminal device demodulates the wake-up signal based on the time information of the first signal.

The time information of the first signal is used for determining the time length occupied by the part with the power of not 0 in the first signal in one time unit. The terminal device may demodulate the wake-up signal based on a length of time occupied by a portion of the first signal having a power other than 0 in one time unit.

For example, if the terminal device knows the time length occupied by the portion of the first signal with power other than 0 in one time unit, the terminal device may select the time interval corresponding to demodulation. If the terminal device does not know the time length occupied by the part with the power different from 0 in the first signal in one time unit, the terminal device demodulates the whole time unit and introduces more noise energy.

Let s (t) be the signal and n (t) be the noise. Taking Manchester encoding as an example, the receiving end compares the signal energy in two time units for demodulation.

Case 1: if the terminal device knows the length of time that the portion of the first signal that is not 0 occupies in a time unit, then:

1) The energy of the signal interval is:

2) The energy of the noise interval is:

3) The signal to noise ratio is:

wherein α represents the ratio of the length of the time occupied by the portion of the first signal with the signal power other than 0 to the length of the time unit, and can be called the duty cycle, and the value of α is [0,1]。E _S Representing the total energy of the signal for the portion of power other than 0. S represents the signal average power of the portion having the power other than 0. N represents the average power of the noise. T denotes the length of the time unit. It can be seen that the terminal device may only process the portion of the first signal that is not 0 in power (length at) in case the terminal device knows the length of time it takes up in one time unit. Hereinafter, for the sake of brevity, description of the same or similar cases will be omitted.

Case 2: if the terminal device does not know the length of time occupied by the portion of the first signal with power other than 0 in one time unit, then:

1) The energy of the signal interval is:

2) The energy of the noise interval is:

3) The signal to noise ratio is:

it can be seen that, when the terminal device knows the time length occupied by the portion with the power other than 0 in the first signal in one time unit, the terminal device can only process all signals (with the length of T) in one time unit, and the signal-to-noise ratio is higher.

Referring to fig. 12, fig. 12 is a schematic diagram of signal-to-noise ratios in various situations, as an example.

In fig. 12, (1) is a case where the length of time occupied by a portion of the first signal having a power other than 0 in one time unit is the length of the time unit, that is, α=1. In fig. 12, (2) is a case where the length of time occupied by the portion of the first signal with the power other than 0 in one time unit is smaller than the length of time occupied by the portion of the first signal with the power other than 0 in one time unit, that is, α is smaller than 1, and the terminal device knows the value of α. In this example, α=0.5. In fig. 12, (3) is a case where the length of time occupied by the portion of the first signal with the power other than 0 in one time unit is smaller than the length of time occupied by the portion of the first signal with the power other than 0 in one time unit, and the terminal device does not know the length of time occupied by the portion of the first signal with the power other than 0 in one time unit, that is, α is smaller than 1, and the terminal device does not know the value of α. In this example, α=0.5. As can be seen from the figure, in fig. 12 (1), the portion of the first signal having a power other than 0 occupies a time period equal to the length of the time unit, so that the terminal device demodulates the whole time unit, and thus the signal-to-noise ratio is lower than that shown in fig. 12 (2). In fig. 12 (3), although the portion of the first signal having a power other than 0 occupies a smaller time period than the time period, the signal-to-noise ratio is lower than that shown in fig. 12 (2) because the terminal device does not know the time period of the portion of the first signal having a power other than 0 occupied in the time period, and thus the terminal device still demodulates the entire time period. From this, it is clear that the signal-to-noise ratio is the highest in the case shown in (2) in fig. 12.

Optionally, the time information of the first signal includes at least one of: the ratio of the length of time occupied by the portion of the first signal whose signal power is not 0 to the length of the time unit, the length of time occupied by the portion of the first signal whose signal power is not 0, the ratio of the length of time occupied by the portion of the first signal whose signal power is 0 to the length of the time unit, and the length of time occupied by the portion of the first signal whose signal power is 0.

In example 1, the time information of the first signal is a ratio of a length of time occupied by a portion of the first signal whose signal power is not 0 to a length of time unit. Based on this, the terminal device may determine the length of time occupied by the portion of the first signal having the signal power other than 0 in one time unit based on the ratio of the length of time occupied by the portion of the first signal having the signal power other than 0 to the length of time unit.

For brevity, in the embodiment of the present application, the ratio of the length of time occupied by the portion of the first signal where the signal power is not 0 to the length of the time unit is denoted as a duty ratio, where the duty ratio is greater than 0 and less than 1 or equal to 1. Taking the manchester encoding method as an example, a method of transmitting 1 bit of information every 2 OFDM symbols is assumed. If the length of the OFDM symbol is L (the specific length may be determined according to the subcarrier spacing size), and the duty ratio is α, the time length occupied by the portion of the first signal having a power other than 0 is α·l, the time length occupied by the portion of the first signal having a power of 0 is (1- α) ·l, and the time length occupied by the second signal is L. Alternatively, if the time length of the first signal is defined as: the length of time that a portion of power other than 0 occupies in a time unit can also be described as: the length of the first signal is alpha.L, and the length of the second signal is (2-alpha) L.

Optionally, the ratio of the length of time occupied by the portion of each of the N1 first signals with the signal power other than 0 to the length of the time unit is the same, that is, the duty ratio of each time unit corresponding to the first signal is the same.

Example 2, the time information of the first signal is the length of time occupied by the portion of the first signal where the signal power is not 0. Based on this, the terminal device may directly determine the length of time occupied by the portion of the first signal whose signal power is not 0 in one time unit.

Example 3, the time information of the first signal is a ratio of a length of time occupied by a portion of the first signal having a signal power of 0 to a length of time unit. Based on this, the terminal device may determine the length of time occupied by the portion of the first signal with signal power 0 in one time unit based on the ratio of the length of time occupied by the portion of the first signal with signal power 0 to the length of time unit. The sum of the length of time occupied by the portion of the first signal with the signal power of 0 in one time unit and the length of time occupied by the portion of the first signal with the signal power of not 0 in one time unit is the length of time unit, and therefore, the length of time occupied by the portion of the first signal with the signal power of not 0 in one time unit can be determined based on the length of time occupied by the portion of the first signal with the signal power of 0 in one time unit.

For example, the ratio of the length of time occupied by the portion of the first signal with signal power of 0 to the length of the time unit is denoted by β, β is greater than or equal to 0, and β is less than or equal to 1. Taking the manchester encoding method as an example, a method of transmitting 1 bit of information every 2 OFDM symbols is assumed. If the length of the OFDM symbol is L (the specific length may be determined according to the subcarrier spacing size), the time length occupied by the portion of the first signal with power 0 is β·l, the time length occupied by the portion of the first signal with power other than 0 is (1- β·l, and the time length occupied by the second signal is L. Alternatively, if the time length of the first signal is defined as: the length of time that a portion of power other than 0 occupies in a time unit can also be described as: the length of the first signal is (1-beta). L, and the length of the second signal is (1+beta). L. Optionally, the ratio of the length of time occupied by the portion with signal power of 0 in each of the N1 first signals to the length of the time unit is the same.

Example 4, the time information of the first signal is the length of time occupied by the portion of the first signal having a signal power of 0. Based on this, the terminal device may directly determine the length of time occupied by the portion of the first signal having the signal power of 0 in one time unit. The sum of the length of time occupied by the portion of the first signal with the signal power of 0 in one time unit and the length of time occupied by the portion of the first signal with the signal power of not 0 in one time unit is the length of time unit, and therefore, the length of time occupied by the portion of the first signal with the signal power of not 0 in one time unit can be determined based on the length of time occupied by the portion of the first signal with the signal power of 0 in one time unit.

The respective information is described separately in connection with examples 1 to 4, and is not limited thereto, and the respective information may be used in combination. As an example, two examples are listed below.

Example 5 the time information of the first signal includes a ratio of a length of time occupied by a portion of the first signal having a signal power other than 0 to a length of time unit, and a ratio of a length of time occupied by a portion of the first signal having a signal power of 0 to a length of time unit. Based on this, the terminal device may determine the length of time occupied by the portion of the first signal whose signal power is not 0 in one time unit based on the ratio of the length of time occupied by the portion of the first signal whose signal power is not 0 to the length of time unit, and may also determine the length of time occupied by the portion of the first signal whose signal power is 0 in one time unit based on the ratio of the length of time occupied by the portion of the first signal whose signal power is 0 to the length of time unit.

Example 6, the time information of the first signal includes a length of time occupied by a portion of the first signal whose signal power is not 0 and a length of time occupied by a portion of the first signal whose signal power is 0. Based on this, the terminal device may directly determine the length of time occupied by the portion of the first signal whose signal power is not 0 in one time unit, and the length of time occupied by the portion of the first signal whose signal power is 0 in one time unit.

It will be appreciated that examples 5 and 6 above are exemplary illustrations of the use of various information in combination, and are not limiting in this regard. For example, the time information of the first signal comprises at least two of: the ratio of the length of time occupied by the portion of the first signal whose signal power is not 0 to the length of the time unit, the length of time occupied by the portion of the first signal whose signal power is not 0, the ratio of the length of time occupied by the portion of the first signal whose signal power is 0 to the length of the time unit, and the length of time occupied by the portion of the first signal whose signal power is 0, that is, the above-mentioned various pieces of information may be used in combination.

It will also be appreciated that the above examples are illustrative, and any information that may be used to determine the length of time a portion of the first signal that is not 0 occupies in a time unit is suitable for use in embodiments of the present application.

In the embodiment of the application, the network device may determine the time information of the first signal, and further notify the terminal device. For example, the network device may configure the duty cycle and send the configured duty cycle to the terminal device, and the terminal device may further learn, based on the duty cycle, a length of time occupied by the portion of the first signal that is not 0 in one time unit.

Optionally, the method 900 further includes: the network device transmits indication information indicating time information of the first signal. Accordingly, the terminal device receives the indication information from the network device, based on which the terminal device may determine the time information of the first signal based on the indication of the network device.

As an example, the indication information may be carried in radio resource control (radio resource control, RRC) signaling. For example, the indication information may be configured by a system information block (system information block, SIB).

One possible implementation way, the indication information is an explicit indication, i.e. the indication information directly indicates the time information of the first signal. Based on this approach, the terminal device may directly determine the time information of the first signal based on the indication information.

In another possible implementation, the indication information is an implicit indication, that is, the indication information may indicate other information (e.g., denoted as information #a). Based on this approach, the terminal device may indirectly determine the time information of the first signal based on the indication information, e.g., the terminal device may directly determine the information #a based on the indication information and determine the time information of the first signal based on the information #a.

For example, the time information of the first signal has an association relationship with the information #a, and the terminal apparatus may determine the time information of the first signal based on the information #a and the association relationship.

Here, as an example, the information #a is a period value of the synchronization signal. Based on this, the time information of the first signal has an association relationship with the period value of the synchronization signal, and the terminal device can determine the time information of the first signal based on the period value of the synchronization signal and the association relationship. For example, the network device sends indication information to the terminal device, where the indication information indicates a period value of the synchronization signal, or the indication information is a period value of the synchronization signal, the terminal device may determine the period value of the synchronization signal based on the indication information, and the terminal device may determine the time information of the first signal based on the period value of the synchronization signal and an association relationship between the time information of the first signal and the period value of the synchronization signal.

Alternatively, the network side or protocol may predefine (or support) the length of time that is occupied by the portion of the at least two first signals that has a signal power other than 0. For convenience of explanation, the following will exemplarily explain taking the time information of the first signal as a duty cycle. The network side or protocol may predefine (or support) at least two duty cycles, and at the time of actual transmission, the network device may select an appropriate duty cycle and notify the terminal device.

For example, the shorter the first signal length, the more concentrated the energy, the higher the equivalent signal-to-noise ratio, and theoretically the better the demodulation performance. But the shorter the first signal length, the more sensitive to residual time bias. Thus, a balance between "energy concentration" and "time offset resistance" needs to be considered. Considering that the time offset size depends on the one hand on the clock accuracy of WUR and on the other hand on the interval (i.e. the period value) of the synchronization signal. Therefore, if the network side or the protocol can predefine (or support) different duty cycles, the network device can flexibly select the duty cycle and the period value of the synchronization signal, so as to balance the overhead of the synchronization signal and the coverage performance of the wake-up signal. In addition, different duty cycles may be suitable for different network deployment scenarios, i.e. the network device may select an appropriate duty cycle according to the actual communication situation.

It will be appreciated that if the network side or the protocol predefines (or supports) the time period occupied by the portion of the first signal with the signal power other than 0, the network device may not need to be configured any more, e.g. the terminal device may know in advance the time period occupied by the portion of the first signal with the signal power other than 0.

Optionally, the method 900 further includes: the network device sends configuration information, wherein the configuration information comprises: the offset value of the part of the first signal with the signal power other than 0 on the time unit, or the offset value of the part of the first signal with the signal power of 0 on the time unit. Accordingly, the terminal device receives configuration information from the network device.

Based on this, the network device may configure an offset value of the portion of the first signal with power other than 0 with respect to the time unit, or configure an offset value of the portion of the first signal with power other than 0 with respect to the time unit, so that the terminal device may learn, based on the offset value, a position of the portion of the first signal with power other than 0 on the time unit, thereby determining a time interval corresponding to demodulation, to improve a signal-to-noise ratio of the signal in the time interval corresponding to demodulation, and thereby improve demodulation performance.

Wherein the offset value of the part of the first signal with the signal power not being 0 in the time unit is any one of the following: an offset value between a start position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, and an offset value between an end position of a portion of the first signal having a signal power other than 0 and an end position of the time cell. Taking the example shown in fig. 11 as an example, in (2) in fig. 11, the length of time occupied by the portion of the first signal whose power is not 0 is greater than 0 and less than the length of time unit, and the offset value between the start position of the portion of the first signal whose signal power is not 0 and the start position of the time unit is 0.

Wherein the offset value of the portion of the first signal with the signal power of 0 in the time unit is any one of the following: an offset value between a start position of a portion of the first signal having a signal power of 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power of 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power of 0 and a start position of the time cell, and an offset value between an end position of a portion of the first signal having a signal power of 0 and an end position of the time cell. Taking the example shown in fig. 11 as an example, in (2) in fig. 11, the length of time occupied by the portion of the first signal with the power of 0 is greater than 0 and less than the length of time unit, and the offset value between the end position of the portion of the first signal with the signal power of 0 and the end position of the time unit is 0.

It will be appreciated that the above-described network device indicates the offset value to the terminal device as an exemplary illustration, and is not limited thereto. For example, the offset value may also be predefined, such as a standard predefined offset value.

In the embodiment of the present application, there is no limitation as to how the network device generates the first signal. For example, taking a duty cycle as an example, when the network device generates the first signals with different duty cycles and the waveform of the wake-up signal is an OFDM waveform, one possible implementation manner is to generate an ideal square wave signal first, and then obtain an OFDM signal most similar to the ideal square wave signal based on the least square principle.

For example, if the network device wishes to generate a first signal with a duty cycle of 0.4, an ideal square wave b may be generated first _m ＝[1,1,0,0,0] ^T The frequency domain signal sequence is calculated again, mapped to the corresponding sub-carrier, and subjected to inverse fast fourier transform (inverse fast fourier transform, IFFT) to generate a first signal of a target duty cycle. As an example, the calculation of the frequency domain signal sequence may refer to the following formula:

wherein the argmax function indicates that the formula following argmax is taken to the maximum.Representing the solved frequency domain signal sequence. F represents N of IFFT matrix truncation _IFFT X K, K being the length of the frequency domain signal sequence. b _target Representing the ideal signal, i.e. b _m . The upper corner mark H indicates the conjugate transpose, e.g. A ^H Representing the conjugate transpose of matrix (or vector) a.

Optionally, the network device may further configure an offset value of a start position of the portion of the first signal having a power other than 0 with respect to the time cell boundary. For example, if it is desired to generate a first signal having a duty cycle of α=0.4 and an offset value of 0.2 between the start position of the portion of the first signal having a signal power other than 0 and the start position of the time unit, then an ideal square wave b may be generated first _m ＝[0,1,1,0,0] ^T And generating a first signal according to the flow.

Alternatively, the wake-up signal may be encoded by manchester, or may not be encoded by manchester, which is not limited. The following description will be given respectively.

In case 1, the wake-up signal is encoded without manchester encoding.

Taking OOK modulation of the signal as an example, one OOK symbol may carry 1 bit of information. The network device shortens the length of the part with the power of not 0 in the first signal, namely the part with the power of not 0 in the first signal occupies part of time of an OOK symbol; when the terminal equipment receives the wake-up signal, a part of time period of each OOK symbol can be selected, and the received energy is compared with a threshold to judge whether the received signal is a first signal or a second signal, so that demodulation is completed.

Taking the example shown in fig. 10 as an example, as shown in fig. 10, 8 OOK symbols may carry 8 bits of information, where the 8 bits of information are: 10100110. fig. 10 (1) is a schematic diagram in which the length of the portion of the first signal with power other than 0 is not shortened, that is, the portion of the first signal with power other than 0 occupies one OOK symbol. Fig. 10 (2) is a schematic diagram of shortening the length of the portion of the first signal with power other than 0, that is, the portion of the first signal with power other than 0 occupies a part of the time of an OOK symbol. As shown in (2) of fig. 10, one possible implementation manner may shorten the length of the portion of the first signal with power other than 0 by half, that is, the portion of the first signal with power other than 0 occupies the first half of the time of an OOK symbol; when the terminal equipment receives signals, the first half time of each OOK symbol can be selected, and the received energy is compared with a threshold to judge whether the received signals are the first signals or the second signals, so that demodulation is completed. It will be appreciated that the portion of the first signal having a power other than 0 that occupies the first half of an OOK symbol is merely illustrative, and is not limited thereto, as described above, the duty cycle is greater than 0 and less than 1 or equal to 1.

In addition, as can be seen from comparing (1) and (2) in fig. 10, when the length of the portion of the first signal with power other than 0 is shortened, the tail of the portion of the first signal with power other than 0 can fall in the same OOK symbol, so that the signal in the next OOK symbol is not affected.

In case 2, the wake-up signal is encoded by manchester encoding.

Still taking the signal OOK modulation as an example, two OOK symbols may carry 1 bit of original information, for example. Still taking the example shown in fig. 10 as an example, as shown in fig. 10, the 8 OOK symbols may carry 4 bits of original information, and assuming that the original bit "0" is encoded as "10" and the original bit "1" is encoded as "01", the 4 bits of original information are as follows: 0010. for other related descriptions, reference may be made to case 1, and the detailed description is not repeated here.

It is to be understood that the foregoing is illustrative and not restrictive. For example, the wake-up signal may be encoded by manchester.

Optionally, the waveform of the wake-up signal is an OFDM waveform.

By way of example, the general principle of OFDM: the general operations of the transmitting end at least may include: the original bits are modulated (modulation), subcarrier mapped (subcarrier mapping), IFFT, and Cyclic Prefix (CP) added. The general operations of the receiving end may at least include: the CP and FFT are removed, then channel estimation, frequency domain equalization (frequency domain equalization, FDE) processing, subcarrier demapping (subcarrier de-mapping), and then demodulation to obtain the original bits. When the OFDM waveform is used for OOK modulation, the operation of the transmitting end can be referred to the above description. The operations of the receiving end may include: the original bits are obtained by decp, envelope detection, and then demodulation. It is to be understood that the description herein of OFDM is merely illustrative for ease of understanding and is not intended to limit the scope of protection of the implementations of the present application.

One possible scenario may be that one OFDM symbol corresponds to one time unit, e.g. one OFDM symbol corresponds to one OOK symbol.

For the manner in which the network device generates the first signal with the specific duty cycle, reference may be made to the foregoing description, and details are not repeated here.

Referring to fig. 13, fig. 13 is a schematic diagram of the waveform of the wake-up signal being an ODFM waveform, as an example.

As shown in fig. 13, after the wake-up signal adopts OOK modulation, 8 OOK symbols are obtained. An OOK symbol is transmitted within the length of one OFDM symbol, or occupies one OFDM symbol. As shown in fig. 13, a transmitting end (e.g., a network device) transmits 8 OFDM symbols, where the 8 OFDM symbols correspond to 8 OOK symbols. In addition, as can be seen from comparing (1) and (2) in fig. 13, when the length of the portion of the first signal with power other than 0 is shortened, the tail of the portion of the first signal with power other than 0 can fall within the same ODFM symbol, so that the signal in the next ODFM symbol is not affected. It will be appreciated that CP is included in each OFDM symbol, and CP may be located at a starting position of each OFDM symbol, which is not shown in fig. 13 for brevity.

In another possible scenario, one OFDM symbol corresponds to at least two time units, e.g., one OFDM symbol corresponds to at least two OOK symbols. For the manner in which the network device generates the first signal with the specific duty cycle, reference may be made to the foregoing description, and details are not repeated here. For example, when one OFDM symbol corresponds to 8 OOK symbols, an ideal waveform b can be generated first when the duty cycle is α=1 _m ＝[1,0,1,0,0,1,1,0] ^T And obtaining the transmitted signal based on the least square principle. For another example, when the duty cycle is α=0.5, the ideal waveform may be set to b _m ＝[1,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0] ^T And obtaining the transmitted signal based on the least square principle.

Referring to fig. 14, fig. 14 is another schematic diagram of the waveform of the wake-up signal being an ODFM waveform, as an example.

As shown in fig. 14, after the wake-up signal adopts OOK modulation, 8 OOK symbols are obtained. Within the length of one OFDM symbol, 8 OOK symbols are transmitted, or 8 OOK symbols occupy one OFDM symbol. As shown in fig. 14, a transmitting end (e.g., a network device) transmits 1 OFDM symbol, where 1 OFDM symbol corresponds to 8 OOK symbols. In addition, as can be seen from comparing (1) and (2) in fig. 14, when the length of the portion of the first signal with power other than 0 is shortened, the tail of the portion of the first signal with power other than 0 can fall within the same OOK symbol, so that the signal in the next OOK symbol is not affected.

It will be appreciated that in some embodiments described above, reference is made to "transmitting," which includes receiving and/or transmitting, unless specifically indicated otherwise. For example, transmitting the signal may include receiving the signal and/or transmitting the signal.

It is also understood that in various embodiments of the present application, "receiving" may be replaced with "detecting" or "monitoring". For example, "receiving a wake-up signal" may be replaced by "detecting a wake-up signal" or "monitoring a wake-up signal".

It may also be understood that in the embodiments of the present application, the interaction between the terminal device and the network device is mainly taken as an example for illustration, and the present application is not limited thereto, and the terminal device may be replaced by a receiving end device, and the receiving end device may be a terminal device or a network device; the network device may be replaced by a transmitting device, which may be a terminal device or a network device. For example, "terminal device" may be replaced with "first terminal device" and "network device" may be replaced with "second terminal device".

It should also be understood that the formulas referred to in the various embodiments of the present application are merely exemplary illustrations, which do not limit the scope of the embodiments of the present application. In calculating the above-described parameters, the calculation may be performed according to the above-described formula, or based on the modification of the above-described formula, or may be performed according to other methods to satisfy the result of the formula calculation.

It will also be appreciated that some optional features of the various embodiments of the application may, in some circumstances, be independent of other features, or may, in some circumstances, be combined with other features, without limitation.

It is also to be understood that the aspects of the embodiments of the present application may be used in any reasonable combination, and that the explanation or illustration of the terms presented in the embodiments may be referred to or explained in the various embodiments without limitation.

It should also be understood that, in the foregoing embodiments of the methods and operations implemented by the terminal device, the methods and operations may also be implemented by component parts (e.g., chips or circuits) of the terminal device; furthermore, the methods and operations implemented by the network device may also be implemented by, but not limited to, constituent components (e.g., chips or circuits) of the network device.

Corresponding to the methods given by the above method embodiments, the embodiments of the present application also provide corresponding apparatuses, where the apparatuses include corresponding modules for performing the above method embodiments. The module may be software, hardware, or a combination of software and hardware. It will be appreciated that the technical features described in the method embodiments described above are equally applicable to the device embodiments described below.

Referring to fig. 15, fig. 15 is a schematic diagram of a communication device 1500 according to an embodiment of the present application. The apparatus 1500 includes a transceiver unit 1510 and a processing unit 1520. The transceiving unit 1510 may be used to implement corresponding communication functions. The transceiving unit 1510 may also be referred to as a communication interface or a communication unit. The processing unit 1520 may be used for processing data or information.

Optionally, the apparatus 1500 further comprises a storage unit, which may be used for storing instructions and/or data, and the processing unit 1520 may read the instructions and/or data in the storage unit, so that the apparatus implements the foregoing method embodiments.

A possible design, the apparatus 1500 may be used to perform the actions performed by the terminal device in the above method embodiments, where the apparatus 1500 may be the terminal device or a component of the terminal device, the transceiver unit 1510 is used to perform the transceiver-related operations on the terminal device side in the above method embodiments, and the processing unit 1520 is used to perform the processing-related operations on the terminal device side in the above method embodiments.

In a first possible implementation, the transceiver 1510 is configured to receive a wake-up signal from a network device over N time units, where the wake-up signal includes N1 first signals and N2 second signals, where the first signals indicate first bit values, the second signals indicate second bit values, the signal power of the first signals is not 0, the signal power of the second signals is 0, each of the N1 first signals occupies one of the N time units, each of the N2 second signals occupies one of the N time units, the first signals includes a portion with a power of 0 and a portion with a power of not 0, a length of time occupied by the portion with the signal power of not 0 in at least one of the N time units is greater than 0 and less than the length of the time units, N is an integer greater than 1, N1 and N2 are integers greater than or equal to 0, and n1+n2=n; a processing unit 1520 for demodulating the wake-up signal.

Optionally, the transceiver 1510 is further configured to receive indication information from the network device, where the indication information indicates time information of the first signal, and the time information of the first signal includes at least one of: the ratio of the length of time occupied by the portion of the first signal whose signal power is not 0 to the length of the time unit, the length of time occupied by the portion of the first signal whose signal power is not 0, the ratio of the length of time occupied by the portion of the first signal whose signal power is 0 to the length of the time unit, and the length of time occupied by the portion of the first signal whose signal power is 0.

Optionally, the indication information is period value configuration information of the synchronization signal, and the period value of the synchronization signal has an association relationship with time information of the first signal.

Optionally, the transceiver 1510 is further configured to periodically receive a synchronization signal from the network device, where a period value of the synchronization signal has an association relationship with time information of the first signal, and the time information of the first signal includes at least one of: the ratio of the length of time occupied by the portion of the first signal whose signal power is not 0 to the length of the time unit, the length of time occupied by the portion of the first signal whose signal power is not 0, the ratio of the length of time occupied by the portion of the first signal whose signal power is 0 to the length of the time unit, and the length of time occupied by the portion of the first signal whose signal power is 0.

Optionally, the transceiver 1510 is further configured to receive configuration information from a network device, where the configuration information includes: the offset value of the part of the first signal with the signal power of not 0 in the time unit, or the offset value of the part of the first signal with the signal power of 0 in the time unit, wherein the offset value of the part of the first signal with the signal power of not 0 in the time unit is any one of the following: an offset value between a start position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, wherein the offset value of the portion of the first signal having a signal power of 0 over the time cell is any of: an offset value between a start position of a portion of the first signal having a signal power of 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power of 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power of 0 and a start position of the time cell, and an offset value between an end position of a portion of the first signal having a signal power of 0 and an end position of the time cell.

In a second possible implementation manner, the transceiver 1510 is configured to receive, from a network device, indication information, where the indication information indicates time information of a first signal, where a time length of a portion of the first signal with a signal power that is not 0 in at least one time unit of N time units is greater than 0 and less than or equal to a length of the time unit, and the time information of the first signal includes at least one of: the ratio of the length of time occupied by the part of the first signal with the signal power not being 0 to the length of the time unit, the length of time occupied by the part of the first signal with the signal power not being 0, the ratio of the length of time occupied by the part of the first signal with the signal power being 0 to the length of the time unit, and the length of time occupied by the part of the first signal with the signal power being 0; the transceiver 1510 is further configured to receive a wake-up signal from a network device over N time units, where the wake-up signal includes N1 first signals and N2 second signals, the first signals indicate first bit values, the second signals indicate second bit values, a signal power of the first signals is not 0, a signal power of the second signals is 0, each of the N1 first signals occupies one of the N time units, each of the N2 second signals occupies one of the N time units, N is an integer greater than 1, N1 and N2 are integers greater than or equal to 0, and n1+n2=n.

The apparatus 1500 may implement steps or flows corresponding to those performed by a terminal device in a method embodiment according to an embodiment of the application, and the apparatus 1500 may include means for performing the method performed by the terminal device in the method embodiment of the application. The specific process of each unit executing the corresponding steps is described in detail in the above method embodiments, and for brevity, will not be described in detail herein.

In another possible design, the apparatus 1500 may be used to perform the actions performed by the network device in the above method embodiments, where the apparatus 1500 may be the network device or a component of the network device, the transceiver unit 1510 is used to perform the operations related to the transceiver on the network device side in the above method embodiments, and the processing unit 1520 is used to perform the operations related to the processing on the network device side in the above method embodiments.

A first possible implementation, a processing unit 1520, configured to generate a wake-up signal; the transceiver 1510 is configured to send a wake-up signal on N time units, where the wake-up signal includes N1 first signals and N2 second signals, the first signals indicate first bit values, the second signals indicate second bit values, signal power of the first signals is not 0, signal power of the second signals is 0, each of the N1 first signals occupies one of the N time units, each of the N2 second signals occupies one of the N time units, the first signals includes a portion with power of 0 and a portion with power of not 0, a time length of the portion with signal power of not 0 in at least one of the N time units is greater than 0 and less than a length of the time unit, N is an integer greater than 1, N1 and N2 are integers greater than 0 or equal to 0, and n1+n2=n.

Optionally, the transceiver 1510 is further configured to send indication information, where the indication information indicates time information of the first signal, and the time information of the first signal includes at least one of: the ratio of the length of time occupied by the portion of the first signal whose signal power is not 0 to the length of the time unit, the length of time occupied by the portion of the first signal whose signal power is not 0, the ratio of the length of time occupied by the portion of the first signal whose signal power is 0 to the length of the time unit, and the length of time occupied by the portion of the first signal whose signal power is 0.

Optionally, the transceiver 1510 is further configured to periodically send a synchronization signal, where a period value of the synchronization signal has an association with time information of the first signal, and the time information of the first signal includes at least one of the following: the ratio of the length of time occupied by the portion of the first signal whose signal power is not 0 to the length of the time unit, the length of time occupied by the portion of the first signal whose signal power is not 0, the ratio of the length of time occupied by the portion of the first signal whose signal power is 0 to the length of the time unit, and the length of time occupied by the portion of the first signal whose signal power is 0.

Optionally, the transceiver 1510 is further configured to send configuration information, where the configuration information includes: the offset value of the part of the first signal with the signal power of not 0 in the time unit, or the offset value of the part of the first signal with the signal power of 0 in the time unit, wherein the offset value of the part of the first signal with the signal power of not 0 in the time unit is any one of the following: an offset value between a start position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, wherein the offset value of the portion of the first signal having a signal power of 0 over the time cell is any of: an offset value between a start position of a portion of the first signal having a signal power of 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power of 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power of 0 and a start position of the time cell, and an offset value between an end position of a portion of the first signal having a signal power of 0 and an end position of the time cell.

In a second possible implementation manner, the transceiver 1510 is configured to send indication information, where the indication information indicates time information of a first signal, and a time length of a portion of the first signal with a signal power other than 0 in at least one time unit of the N time units is greater than 0 and less than or equal to a length of the time unit, where the time information of the first signal includes at least one of: the ratio of the length of time occupied by the part of the first signal with the signal power not being 0 to the length of the time unit, the length of time occupied by the part of the first signal with the signal power not being 0, the ratio of the length of time occupied by the part of the first signal with the signal power being 0 to the length of the time unit, and the length of time occupied by the part of the first signal with the signal power being 0; the transceiver 1510 is further configured to send a wake-up signal on N time units, where the wake-up signal includes N1 first signals and N2 second signals, the first signals indicate first bit values, the second signals indicate second bit values, signal power of the first signals is not 0, signal power of the second signals is 0, each of the N1 first signals occupies one of the N time units, each of the N2 second signals occupies one of 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.

Optionally, the transceiver 1510 is further configured to send configuration information to a network device, where the configuration information includes: the offset value of the part of the first signal with the signal power of not 0 in the time unit, or the offset value of the part of the first signal with the signal power of 0 in the time unit, wherein the offset value of the part of the first signal with the signal power of not 0 in the time unit is any one of the following: an offset value between a start position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, wherein the offset value of the portion of the first signal having a signal power of 0 over the time cell is any of: an offset value between a start position of a portion of the first signal having a signal power of 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power of 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power of 0 and a start position of the time cell, and an offset value between an end position of a portion of the first signal having a signal power of 0 and an end position of the time cell.

The apparatus 1500 may implement steps or flows corresponding to those performed by a network device in a method embodiment according to an embodiment of the application, and the apparatus 1500 may include means for performing the method performed by the network device in a method embodiment of the application. The specific process of each unit executing the corresponding steps is described in detail in the above method embodiments, and for brevity, will not be described in detail herein.

It should be appreciated that the apparatus 1500 herein is embodied in the form of functional units. The term "unit" herein may refer to an application specific integrated circuit (application specific integrated circuit, ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor, etc.) and memory that execute at least one software or firmware program, a combinational logic circuit, and/or other suitable components that support the described functionality. In an alternative example, it will be understood by those skilled in the art that the apparatus 1500 may be specifically configured as a terminal device in the foregoing embodiments, and may be configured to perform each flow and/or step corresponding to the terminal device in the foregoing method embodiments; alternatively, the apparatus 1500 may be specifically a network device in the foregoing embodiments, and may be configured to perform each flow and/or step corresponding to the network device in the foregoing method embodiments, which is not described herein for avoiding repetition.

The apparatus 1500 of each of the above embodiments has a function of implementing the corresponding steps performed by the communication device (e.g., the terminal device, and also e.g., the network device) in the above method. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises at least one module corresponding to the functions; for example, the transceiver unit may be replaced by a transceiver (e.g., a transmitting unit in the transceiver unit may be replaced by a transmitter, a receiving unit in the transceiver unit may be replaced by a receiver), and other units, such as a processing unit, etc., may be replaced by a processor, to perform the transceiver operations and related processing operations in the various method embodiments, respectively.

The transceiver 1510 may be a transceiver circuit (e.g., may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit.

It should be noted that the apparatus in fig. 15 may be the device in the foregoing embodiment, or may be a chip or a chip system, for example: system on chip (SoC). The receiving and transmitting unit can be an input and output circuit and a communication interface; the processing unit is an integrated processor or microprocessor or integrated circuit on the chip. And are not limited herein.

Referring to fig. 16, fig. 16 is a schematic diagram of another communication device 1600 provided by an embodiment of the present application, as an example. The apparatus 1600 includes a processor 1610, where the processor 1610 is coupled to a memory 1620. Optionally, the apparatus 1600 also includes a memory 1620. The memory 1620 is used for storing computer programs or instructions and/or data, and the processor 1610 is used for executing the computer programs or instructions stored in the memory 1620 or reading data stored in the memory 1620 to perform the methods in the above method embodiments.

Optionally, the processor 1610 is at least one.

Optionally, the memory 1620 is at least one.

Alternatively, the memory 1620 may be integrated with the processor 1610 or separately provided.

Optionally, as shown in fig. 16, the apparatus 1600 further includes a transceiver 1630, the transceiver 1630 being used for receiving and/or transmitting signals. For example, processor 1610 is configured to control transceiver 1630 to receive and/or transmit signals.

As an option, the apparatus 1600 is configured to implement the operations performed by the terminal device in the various method embodiments above.

For example, the processor 1610 is configured to execute a computer program or instructions stored in the memory 1620 to implement the relevant operations of the terminal device in the above method embodiments. For example, the method performed by the terminal device in the embodiment shown in fig. 9.

Alternatively, the apparatus 1600 is configured to implement the operations performed by the network device in the various method embodiments above.

For example, processor 1610 is configured to execute computer programs or instructions stored by memory 1620 to implement the relevant operations of the network devices in the various method embodiments above. For example, the network device in the embodiment shown in fig. 9 performs the method.

It should be appreciated that the processors referred to in the embodiments of the present application may be central processing units (central processing unit, CPU), but may also be other general purpose processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated circuit, ASIC), off-the-shelf programmable gate arrays (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that the memories mentioned in the embodiments of the present application may be volatile memories and/or nonvolatile memories. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM). For example, RAM may be used as an external cache. By way of example, and not limitation, RAM includes the following forms: static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (DR RAM).

It should be noted that when the processor is a general purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, the memory (storage module) may be integrated into the processor.

It should also be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Referring to fig. 17, as an example, fig. 17 is a schematic diagram of a chip system 1700 provided in an embodiment of the present application. The system on chip 1700 (or may also be referred to as a processing system) includes logic 1710 and input/output interface 1720.

Logic 1710 may be, among other things, processing circuitry in system on chip 1700. Logic 1710 may be coupled to a memory unit to invoke instructions in the memory unit so that system on chip 1700 may implement the methods and functions of embodiments of the present application. Input/output interface 1720, which may be an input/output circuit in chip system 1700, outputs information processed by chip system 1700, or inputs data or signaling information to be processed into chip system 1700 for processing.

Specifically, for example, if the terminal device is equipped with the chip system 1700, the logic circuit 1710 is coupled to the input/output interface 1720, and the input/output interface 1720 may input a wake-up signal to the logic circuit 1710 for processing.

As an option, the chip system 1700 is configured to implement the operations performed by the terminal device in the above method embodiments.

For example, the logic circuit 1710 is configured to implement the operations related to processing performed by the terminal device in the above method embodiment, for example, the operations related to processing performed by the terminal device in the embodiment shown in fig. 9; the input/output interface 1720 is configured to implement the transmission and/or reception related operations performed by the terminal device in the above method embodiment, e.g., the transmission and/or reception related operations performed by the terminal device in the embodiment shown in fig. 9.

Alternatively, the system on a chip 1700 is configured to implement the operations performed by the network device in the various method embodiments above.

For example, the logic 1710 is configured to implement the operations related to processing performed by the network device in the above method embodiment, for example, the operations related to processing performed by the network device in the embodiment shown in fig. 9; the input/output interface 1720 is used to implement transmit and/or receive related operations performed by the network device in the above method embodiments, such as the network device in the embodiment shown in fig. 9.

The present application also provides a computer-readable storage medium having stored thereon computer instructions for implementing the method performed by the apparatus in the above-described method embodiments.

For example, the computer program, when executed by a computer, enables the computer to implement the methods performed by the terminal device in the above-described method embodiments.

As another example, the computer program when executed by a computer may enable the computer to implement the method performed by the network device in the above-described method embodiments.

The embodiments of the present application also provide a computer program product, which contains instructions that, when executed by a computer, implement the method performed by the terminal device or the network device in the above method embodiments.

The embodiment of the application also provides a communication system, which comprises the terminal equipment and the network equipment in each embodiment.

The explanation and beneficial effects of the related content in any of the above-mentioned devices can refer to the corresponding method embodiments provided above, and are not repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., at least two units or components may be combined or integrated into another system, or some features may be omitted or not performed. Furthermore, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, 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. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. For example, the computer may be a personal computer, a server, or a network device, etc. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). 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, data center, etc. that contains at least one integration of the available media. For example, the aforementioned usable media include, but are not limited to, U disk, removable hard disk, read-only memory (ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other various media that can store program code.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, comprising:

a terminal device receives a wake-up signal from a network device on N time units, the wake-up signal comprising N1 first signals and N2 second signals, the first signals indicating first bit values, the second signals indicating second bit values, the signal power of the first signals being different from 0, the signal power of the second signals being 0, each of the N1 first signals taking up one of the N time units, each of the N2 second signals taking up one of the N time units, the first signals comprising a portion of 0 power and a portion of non-0 power, the portion of the first signals taking up a length of time greater than 0 and less than the length of the time unit on at least one of the N time units, N being an integer greater than 1, N1 and N2 being integers greater than or equal to 0, and n1+n2=n;

The terminal device demodulates the wake-up signal.

2. The method according to claim 1, wherein the method further comprises:

the terminal device receives indication information from the network device, wherein the indication information indicates time information of the first signal, and the time information of the first signal comprises at least one of the following: the ratio of the length of time occupied by the part of the first signal with the signal power being not 0 to the length of the time unit, the length of time occupied by the part of the first signal with the signal power being not 0, the ratio of the length of time occupied by the part of the first signal with the signal power being 0 to the length of the time unit, and the length of time occupied by the part of the first signal with the signal power being 0.

3. The method of claim 2, wherein the indication information is period value configuration information of a synchronization signal, and the period value of the synchronization signal has an association relationship with time information of the first signal.

4. The method according to claim 1, wherein the method further comprises:

the terminal device periodically receives a synchronization signal from the network device, wherein a period value of the synchronization signal has an association relationship with time information of the first signal, and the time information of the first signal comprises at least one of the following: the ratio of the length of time occupied by the part of the first signal with the signal power being not 0 to the length of the time unit, the length of time occupied by the part of the first signal with the signal power being not 0, the ratio of the length of time occupied by the part of the first signal with the signal power being 0 to the length of the time unit, and the length of time occupied by the part of the first signal with the signal power being 0.

5. The method according to any one of claims 1 to 4, further comprising:

the terminal device receives configuration information from the network device, the configuration information including: the offset value of the part of the first signal with the signal power not being 0 on the time unit, or the offset value of the part of the first signal with the signal power being 0 on the time unit,

wherein the offset value of the part of the first signal with the signal power not being 0 on the time unit is any one of the following: an offset value between a start position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power other than 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and a start position of the time cell, an offset value between an end position of a portion of the first signal having a signal power other than 0 and an end position of the time cell,

wherein an offset value of a portion of the first signal with a signal power of 0 over the time unit is any one of: an offset value between a start position of a portion of the first signal having a signal power of 0 and a start position of the time cell, an offset value between a start position of a portion of the first signal having a signal power of 0 and an end position of the time cell, an offset value between an end position of a portion of the first signal having a signal power of 0 and a start position of the time cell, and an offset value between an end position of a portion of the first signal having a signal power of 0 and an end position of the time cell.

6. A method of communication, comprising:

the network equipment generates a wake-up signal;

the network device transmits the wake-up signal on N time units, the wake-up signal including N1 first signals and N2 second signals, the first signals indicating first bit values, the second signals indicating second bit values, the first signals having a signal power other than 0, the second signals having a signal power of 0, each of the N1 first signals occupying one of the N time units, each of the N2 second signals occupying one of the N time units, the first signals including a portion having a power of 0 and a portion having a power other than 0, the portion of the first signals having a signal power other than 0 having a time length over at least one of the N time units that is greater than 0 and less than the length of the time unit, N being an integer greater than 1, N1 and N2 being integers greater than or equal to 0, and n1+n2=n.

7. The method of claim 6, wherein the method further comprises:

the network device sends indication information, wherein the indication information indicates time information of the first signal, and the time information of the first signal comprises at least one of the following: the ratio of the length of time occupied by the part of the first signal with the signal power being not 0 to the length of the time unit, the length of time occupied by the part of the first signal with the signal power being not 0, the ratio of the length of time occupied by the part of the first signal with the signal power being 0 to the length of the time unit, and the length of time occupied by the part of the first signal with the signal power being 0.

8. The method of claim 7, wherein the indication information is period value configuration information of a synchronization signal, and the period value of the synchronization signal has an association relationship with time information of the first signal.

9. The method of claim 6, wherein the method further comprises:

the network device periodically transmits a synchronization signal, wherein a period value of the synchronization signal has an association relationship with time information of the first signal, and the time information of the first signal comprises at least one of the following: the ratio of the length of time occupied by the part of the first signal with the signal power being not 0 to the length of the time unit, the length of time occupied by the part of the first signal with the signal power being not 0, the ratio of the length of time occupied by the part of the first signal with the signal power being 0 to the length of the time unit, and the length of time occupied by the part of the first signal with the signal power being 0.

10. The method according to any one of claims 6 to 9, further comprising:

the network device sends configuration information, the configuration information including: the offset value of the part of the first signal with the signal power not being 0 on the time unit, or the offset value of the part of the first signal with the signal power being 0 on the time unit,

11. A method of communication, comprising:

the terminal equipment receives indication information from the network equipment, wherein the indication information indicates time information of a first signal, the time length of a part of which the signal power is not 0 in at least one time unit in N time units is greater than 0 and less than or equal to the length of the time unit, and the time information of the first signal comprises at least one of the following: a ratio of a time length occupied by a portion of the first signal having a signal power other than 0 to a length of the time unit, a time length occupied by a portion of the first signal having a signal power other than 0, a ratio of a time length occupied by a portion of the first signal having a signal power of 0 to a length of the time unit, and a time length occupied by a portion of the first signal having a signal power of 0;

the terminal device receives a wake-up signal from the network device over the N time units, the wake-up signal comprising N1 of the first signals and N2 of the second signals, the first signals indicating first bit values, the second signals indicating second bit values, the signal power of the first signals being other than 0, the signal power of the second signals being 0, each of the N1 first signals comprising one of the N time units, each of the N2 second signals comprising one of the N time units, N being an integer greater than 1, N1 and N2 being integers greater than or equal to 0, and n1+n2=n.

12. The method of claim 11, wherein the indication information is period value configuration information of a synchronization signal, and the period value of the synchronization signal has an association relationship with time information of the first signal.

13. The method according to claim 11 or 12, characterized in that the method further comprises:

14. A method of communication, comprising:

the network device sends indication information, wherein the indication information indicates time information of a first signal, the time length of a part of which the signal power is not 0 in at least one time unit in N time units is greater than 0 and less than or equal to the length of the time unit, and the time information of the first signal comprises at least one of the following: a ratio of a time length occupied by a portion of the first signal having a signal power other than 0 to a length of the time unit, a time length occupied by a portion of the first signal having a signal power other than 0, a ratio of a time length occupied by a portion of the first signal having a signal power of 0 to a length of the time unit, and a time length occupied by a portion of the first signal having a signal power of 0;

The network device sends a wake-up signal on the N time units, where the wake-up signal includes N1 first signals and N2 second signals, where the first signals indicate first bit values, the second signals indicate second bit values, signal power of the first signals is not 0, signal power of the second signals is 0, each of the N1 first signals occupies one of the N time units, each of the N2 second signals occupies one of the N time units, N is an integer greater than 1, N1 and N2 are integers greater than or equal to 0, and n1+n2=n.

15. The method of claim 14, wherein the indication information is a period value configuration information of a synchronization signal, and the period value of the synchronization signal has an association relationship with time information of the first signal.

16. The method according to claim 14 or 15, characterized in that the method further comprises:

17. A communication device comprising means or units for performing the method of any one of claims 1 to 16.

18. A communication device comprising a processor for executing a computer program or instructions stored in a memory to cause the device to perform the method of any one of claims 1 to 16.

19. The apparatus of claim 18, further comprising the memory and/or a communication interface coupled with the processor,

the communication interface is used for inputting and/or outputting information.

20. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program or instructions, which when run on a communication device, cause the communication device to perform the method of any of claims 1 to 16.

21. A computer program product, characterized in that the computer program product comprises a computer program or instructions for performing the method of any of claims 1 to 16.

22. A chip, characterized in that the chip is coupled to a memory for reading and executing program instructions stored in the memory for implementing the method according to any of claims 1 to 16.