Communication method and communication apparatus

Abstract

The present application provides a communication method and a communication apparatus. The method comprises: an access network device sends a wake-up signal by means of a first frequency resource, and sends a synchronization signal by means of a second frequency resource, wherein the difference between the center frequency point of the first frequency resource and the center frequency point of the second frequency resource is less than or equal to a first threshold, and / or the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, and the wake-up signal and the synchronization signal are modulated by means of on-off keying (OOK). By defining the center frequency points or the total bandwidth of a frequency resource (the first frequency resource) used for sending a wake-up signal and a frequency resource (the second frequency resource) used for sending a synchronization signal by an access network device, relative positions of the first frequency resource and the second frequency resource in frequency domain are specified, thereby achieving the purposes of controlling power consumption of a terminal device or reducing the complexity.

Description

Communication method and communication device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on February 7, 2024, with application number 202410175986.X and invention name “A Communication Method and Communication Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and more particularly, to a communication method and a communication device. Background Art

[0003] With the development of mobile communication technology, mobile applications are becoming increasingly diverse, and device functionality is constantly expanding. Reducing device energy consumption has become a key technical goal of wireless networks. When receiving paging messages, terminal devices can use a separate, low-power circuit to receive paging-related messages. This circuit is called a wake-up circuit, a low-power circuit, a wake-up radio, or a wake-up receiver (LP-WUR). The signal received by the wake-up circuit is called a low-power wake-up signal (LP-WUS).

[0004] To reduce the power consumption of the wake-up circuit, the LP-WUS signal is typically modulated using on-off keying (OOK). However, the modulated LP-WUS signal may be distorted after passing through the channel, affecting its correct reception. To ensure accurate LP-WUS reception, a low-power synchronization signal (LP-SS) can be introduced to support the synchronization function of the wake-up receiver.

[0005] How to deploy the positional relationship between LP-WUS and LP-SS in the frequency domain is an urgent problem to be solved. Summary of the Invention

[0006] The present application provides a communication method and a communication device, which can reduce the complexity of terminal equipment and avoid resource waste by defining the positional relationship between LP-WUS and LP-SS in the frequency domain.

[0007] In a first aspect, a communication method is provided. The method may be executed by a network device, or may be executed by a chip or circuit configured in the network device, and this application does not limit this.

[0008] The method may include: sending a wake-up signal through a first frequency resource, wherein the wake-up signal is used to wake up at least one terminal device; sending a synchronization signal through a second frequency resource, wherein the difference between the center frequency of the first frequency resource and the center frequency of the second frequency resource is less than or equal to a first threshold, and / or the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, and the wake-up signal and the synchronization signal are modulated using on-off keying OOK.

[0009] Based on the above technical solution, the center frequency or total bandwidth of the frequency resources (first frequency resources) for sending wake-up signals and the frequency resources (second frequency resources) for sending synchronization signals of network devices (for example, access network devices) are defined, thereby agreeing on the relative positions of the first frequency resources and the second frequency resources in the frequency domain, so as to achieve the purpose of controlling the power consumption of terminal devices or reducing complexity.

[0010] In combination with the first aspect, in certain implementations of the first aspect, the total bandwidth is determined based on the minimum frequency resource index and the maximum frequency resource index, wherein the minimum frequency resource index is the index of the smallest frequency resource between the first frequency resource and the second frequency resource, and the maximum frequency resource index is the index of the largest frequency resource between the first frequency resource and the second frequency resource.

[0011] In this technical solution, by limiting the frequency resources (total bandwidth) indicated by the maximum frequency resource index and the minimum frequency resource index in the first frequency resource and the second frequency resource, it is ensured that the deployment of the first frequency resource and the second frequency resource in the frequency domain does not exceed a certain range.

[0012] In combination with the first aspect, in certain implementations of the first aspect, the bandwidth indicated by the minimum frequency resource index and the maximum frequency resource index is less than or equal to the second threshold.

[0013] Among them, the minimum frequency resource index can be used as the starting frequency resource index, the ending frequency resource index can be used as the maximum frequency resource index, and the bandwidth indicated by the minimum frequency resource index and the maximum frequency resource index can be understood as the bandwidth indicated by the starting frequency resource index and the ending frequency resource index.

[0014] In combination with the first aspect, in some implementations of the first aspect, the center frequency of the first frequency resource and the center frequency of the second frequency resource are the same, and the first threshold is 0.

[0015] In this technical solution, the center frequency of the first frequency resource and the center frequency of the second frequency resource are the same, that is, the difference between the center frequency of the first frequency resource and the center frequency of the second frequency resource is equal to 0, or in other words, the center frequency of the first frequency resource and the center frequency of the second frequency resource are aligned. The smaller the difference between the center frequency of the first frequency resource and the center frequency of the second frequency resource, the smaller the receiving bandwidth that the terminal device can use to receive the wake-up signal and synchronization signal, which helps to reduce the power consumption of the terminal device and reduce resource waste.

[0016] In combination with the first aspect, in some implementations of the first aspect, the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same, wherein the first bandwidth is the sum of the bandwidth occupied by the first wake-up signal and the protection bandwidth of the wake-up signal, and the second bandwidth is the sum of the bandwidth occupied by the synchronization signal and the protection bandwidth of the synchronization signal.

[0017] In this technical solution, the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same, and easily schedulable resources can be reserved for other signals (for example, other signals except LP-WUS and LP-SS), which is conducive to reducing the complexity of network device scheduling.

[0018] In combination with the first aspect, in some implementations of the first aspect, a bandwidth occupied by the synchronization signal is smaller than a bandwidth occupied by the wake-up signal.

[0019] In this technical solution, the synchronization signal occupies a smaller bandwidth, resulting in a correspondingly larger protection bandwidth for the synchronization signal. This allows the terminal device to resist even greater frequency offset interference before using the synchronization signal for frequency synchronization. In other words, the larger protection bandwidth allows the terminal device to receive the complete synchronization signal even in the presence of a large frequency offset without receiving interference (interference signals outside the protection bandwidth), thus preventing excessive impact on reception performance (such as synchronization, demodulation, and measurement performance).

[0020] In combination with the first aspect, in certain implementations of the first aspect, first configuration information and second configuration information are sent, wherein the first configuration information is used to indicate the center frequency of the first frequency resource, and the second configuration information is used to indicate one of the starting frequency unit, the ending frequency unit or the bandwidth of the second frequency resource; or, the first configuration information is used to indicate the center frequency of the second frequency resource, and the second configuration information is used to indicate one of the starting frequency unit, the ending frequency unit or the bandwidth of the first frequency resource.

[0021] In this technical solution, the center frequency of the first frequency resource and the center frequency of the second frequency resource are the same. The network device can indicate the center frequency of any one of the frequency resources, for example, by configuring two items of the starting frequency unit, the ending frequency unit, or the bandwidth of any one of the frequency resources. The terminal device can determine the center frequency of this frequency resource based on the two items of the starting frequency unit, the ending frequency unit, or the bandwidth of this frequency resource. Since the center frequencies of the two frequency resources are the same, the terminal device also knows the center frequency of the other frequency resource. At this time, when the network device configures another frequency resource, it can configure one of the starting frequency unit, the ending frequency unit, or the bandwidth, and determine the other frequency resource based on the center frequency and one of the starting frequency unit, the ending frequency unit, or the bandwidth. Based on this configuration method, the configuration signaling overhead can be reduced.

[0022] In combination with the first aspect, in certain implementations of the first aspect, the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, and the first configuration information or the second configuration information is also used to indicate the difference between the center frequency point of the first frequency resource and the center frequency point of the second frequency resource.

[0023] In this technical solution, the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to the second threshold value. The network device can indicate the center frequency of any one of the frequency resources and the difference between the two center frequencies. For example, configure the starting frequency unit, the ending frequency unit or two items of the bandwidth of any one of the frequency resources. The terminal device can determine the center frequency of this frequency resource based on the starting frequency unit, the ending frequency unit or two items of the bandwidth of this frequency resource. According to the difference between the two center frequencies, the terminal device also knows the center frequency of the other frequency resource. At this time, when the network device configures another frequency resource, it can configure one of the starting frequency unit, the ending frequency unit or the bandwidth, and can determine the other frequency resource based on the center frequency and one of the starting frequency unit, the ending frequency unit or the bandwidth.

[0024] In conjunction with the first aspect, in certain implementations of the first aspect, the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold value, and the first configuration information is used to indicate two items of the starting frequency unit, the ending frequency unit, or the bandwidth of the first frequency resource; and the second configuration information is used to indicate two items of the starting frequency unit, the ending frequency unit, or the bandwidth of the second frequency resource. It is understandable that the terminal device determines the first frequency resource based on two items of the starting frequency unit, the ending frequency unit, or the bandwidth of the first frequency resource, and determines the second frequency resource based on two items of the starting frequency unit, the ending frequency unit, or the bandwidth of the second frequency resource.

[0025] As an example, the first configuration information and the second configuration information may be configured through the same configuration information, or may be configured through two configuration information respectively, which is not limited in the present embodiment.

[0026] In combination with the first aspect, in some implementations of the first aspect, third configuration information is sent, where the third configuration information is used to indicate a protection bandwidth of the wake-up signal or a protection bandwidth of the synchronization signal.

[0027] In this technical solution, when the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same, the third configuration information can configure the protection bandwidth of one signal (one of the wake-up signal or the synchronization signal). Accordingly, the terminal device can determine the protection bandwidth of the other signal (the other of the wake-up signal or the synchronization signal) based on the fact that the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same. In this case, this configuration method can reduce configuration overhead.

[0028] As an example, the content of the third configuration information may be carried in the first configuration information and / or the second configuration information.

[0029] For example, the first configuration information includes a guard bandwidth of a wake-up signal, and the second configuration information includes a guard bandwidth of a synchronization signal.

[0030] As an example, the third configuration information may also be configured separately.

[0031] As an example, the third configuration information may also be configured through the same piece of configuration information as the first configuration information and the second configuration information.

[0032] The above configuration is merely an example and does not limit the scope of protection of the embodiments of the present application.

[0033] In combination with the first aspect, in some implementations of the first aspect, other signals may or may not be allowed to be sent within the total bandwidth, where other signals refer to signals other than LP-WUS and LP-SS.

[0034] In this technical solution, other signals are not allowed to be sent within the total bandwidth. The terminal device can determine a receiving bandwidth based on the total bandwidth to receive LP-SS and LP-WUS without adjusting the frequency position of the receiving bandwidth, and the complexity of the terminal is low. Other signals are allowed to be sent within the total bandwidth. The terminal device can receive LP-SS and LP-WUS with two relatively small bandwidths respectively. The unused resources can be used to receive and transmit other NR signals, avoiding resource waste.

[0035] With reference to the first aspect, in certain implementations of the first aspect, the wake-up signal is a low power wake-up signal LP-WUS, and the synchronization signal is a low power synchronization signal LP-SS.

[0036] In a second aspect, a communication method is provided. The method can be executed by a terminal device, or can also be executed by a chip or circuit configured in the terminal device, and this application does not limit this.

[0037] The method may include: receiving a wake-up signal through a first frequency resource, wherein the wake-up signal is used to wake up at least one terminal device; receiving a synchronization signal through a second frequency resource, wherein the difference between the center frequency of the first frequency resource and the center frequency of the second frequency resource is less than or equal to a first threshold, and / or the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, and the wake-up signal and the synchronization signal are modulated using on-off keying (OOK).

[0038] Based on the above technical solution, the center frequency point or total bandwidth of the frequency resources (first frequency resources) for the terminal device to receive the wake-up signal and the frequency resources (second frequency resources) for receiving the synchronization signal are defined, thereby agreeing on the relative positions of the first frequency resources and the second frequency resources in the frequency domain, so as to achieve the purpose of controlling the power consumption of the terminal device or reducing the complexity.

[0039] In combination with the second aspect, in certain implementations of the second aspect, the total bandwidth is determined based on the minimum frequency resource index and the maximum frequency resource index, the minimum frequency resource index being the index of the smallest frequency resource between the first frequency resource and the second frequency resource, and the maximum frequency resource index being the index of the largest frequency resource between the first frequency resource and the second frequency resource.

[0040] In this technical solution, by limiting the frequency resources (total bandwidth) indicated by the maximum frequency resource index and the minimum frequency resource index in the first frequency resource and the second frequency resource, it is ensured that the deployment of the first frequency resource and the second frequency resource in the frequency domain does not exceed a certain range.

[0041] In combination with the second aspect, in certain implementations of the second aspect, the bandwidth indicated by the minimum frequency resource index and the maximum frequency resource index is less than or equal to the second threshold.

[0042] Among them, the minimum frequency resource index can be used as the starting frequency resource index, the ending frequency resource index can be used as the maximum frequency resource index, and the bandwidth indicated by the minimum frequency resource index and the maximum frequency resource index can be understood as the bandwidth indicated by the starting frequency resource index and the ending frequency resource index.

[0043] In combination with the second aspect, in certain implementations of the second aspect, the center frequency of the first frequency resource and the center frequency of the second frequency resource are the same, and the first threshold is 0.

[0044] In this technical solution, the center frequency of the first frequency resource and the center frequency of the second frequency resource are the same, that is, the difference between the center frequency of the first frequency resource and the center frequency of the second frequency resource is equal to 0, or in other words, the center frequency of the first frequency resource and the center frequency of the second frequency resource are aligned. The smaller the difference between the center frequency of the first frequency resource and the center frequency of the second frequency resource, the smaller the receiving bandwidth that the terminal device can use to receive the wake-up signal and synchronization signal, which helps to reduce the power consumption of the terminal device and reduce resource waste.

[0045] In combination with the second aspect, in some implementations of the second aspect, the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same, wherein the first bandwidth is the sum of the bandwidth occupied by the wake-up signal and the protection bandwidth of the wake-up signal, and the second bandwidth is the sum of the bandwidth occupied by the synchronization signal and the protection bandwidth of the synchronization signal.

[0046] In this technical solution, the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same, and easily schedulable resources can be reserved for other signals (for example, other signals except LP-WUS and LP-SS), which is conducive to reducing the complexity of network device scheduling.

[0047] In combination with the second aspect, in some implementations of the second aspect, a bandwidth occupied by the synchronization signal is smaller than a bandwidth occupied by the wake-up signal.

[0048] In this technical solution, the synchronization signal occupies a smaller bandwidth, resulting in a correspondingly larger protection bandwidth for the synchronization signal. This allows the terminal device to resist even greater frequency offset interference before using the synchronization signal for frequency synchronization. In other words, the larger protection bandwidth allows the terminal device to receive the complete synchronization signal even in the presence of a large frequency offset without receiving interference (interference signals outside the protection bandwidth), thus preventing excessive impact on reception performance (such as synchronization, demodulation, and measurement performance).

[0049] In combination with the second aspect, in certain implementations of the second aspect, first configuration information and second configuration information are received, wherein the first configuration information is used to indicate the center frequency of the frequency resource for sending the wake-up signal, and the second configuration information is used to indicate the starting frequency domain unit, the ending frequency unit or the bandwidth of the frequency resource for sending the synchronization signal; or, the first configuration information is used to indicate the center frequency of the frequency resource for sending the synchronization signal, and the second configuration information is used to indicate the starting frequency domain unit, the ending frequency unit or the bandwidth of the frequency resource for sending the wake-up signal; the first frequency resource and the second frequency resource are determined according to the first configuration information and the second configuration information.

[0050] In this technical solution, the center frequency of the first frequency resource and the center frequency of the second frequency resource are the same. The network device can indicate the center frequency of any one of the frequency resources, for example, by configuring two items of the starting frequency unit, the ending frequency unit, or the bandwidth of any one of the frequency resources. The terminal device can determine the center frequency of this frequency resource based on the two items of the starting frequency unit, the ending frequency unit, or the bandwidth of this frequency resource. Since the center frequencies of the two frequency resources are the same, the terminal device also knows the center frequency of the other frequency resource. At this time, when the network device configures another frequency resource, it can configure one of the starting frequency unit, the ending frequency unit, or the bandwidth, and determine the other frequency resource based on the center frequency and one of the starting frequency unit, the ending frequency unit, or the bandwidth. Based on this configuration method, the configuration signaling overhead can be reduced.

[0051] In combination with the second aspect, in certain implementations of the second aspect, the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, and the first configuration information or the second configuration information is also used to indicate the difference between the center frequency point of the first frequency resource and the center frequency point of the second frequency resource.

[0052] In this technical solution, the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to the second threshold value. The network device can indicate the center frequency of any one of the frequency resources and the difference between the two center frequencies. For example, configure the starting frequency unit, the ending frequency unit or two items of the bandwidth of any one of the frequency resources. The terminal device can determine the center frequency of this frequency resource based on the starting frequency unit, the ending frequency unit or two items of the bandwidth of this frequency resource. According to the difference between the two center frequencies, the terminal device also knows the center frequency of the other frequency resource. At this time, when the network device configures another frequency resource, it can configure one of the starting frequency unit, the ending frequency unit or the bandwidth, and can determine the other frequency resource based on the center frequency and one of the starting frequency unit, the ending frequency unit or the bandwidth.

[0053] In conjunction with the first aspect, in certain implementations of the first aspect, the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold value, and the first configuration information is used to indicate two items of the starting frequency unit, the ending frequency unit, or the bandwidth of the first frequency resource; and the second configuration information is used to indicate two items of the starting frequency unit, the ending frequency unit, or the bandwidth of the second frequency resource. It is understandable that the terminal device determines the first frequency resource based on two items of the starting frequency unit, the ending frequency unit, or the bandwidth of the first frequency resource, and determines the second frequency resource based on two items of the starting frequency unit, the ending frequency unit, or the bandwidth of the second frequency resource.

[0054] As an example, the first configuration information and the second configuration information may be configured through the same configuration information, or may be configured through two configuration information respectively, which is not limited in the present embodiment.

[0055] In combination with the second aspect, in certain implementations of the second aspect, third configuration information is received; and a protection bandwidth of the wake-up signal and a protection bandwidth of the synchronization signal are determined based on the third configuration information.

[0056] In this technical solution, when the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same, the third configuration information can configure the protection bandwidth of one signal (one of the wake-up signal or the synchronization signal). Accordingly, the terminal device can determine the protection bandwidth of the other signal (the other of the wake-up signal or the synchronization signal) based on the fact that the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same. In this case, this configuration method can reduce configuration overhead.

[0057] The configuration method of the third configuration information can refer to the first aspect and will not be repeated here.

[0058] In combination with the second aspect, in some implementations of the second aspect, the wake-up signal is a low power wake-up signal LP-WUS, and the synchronization signal is a low power synchronization signal LP-SS.

[0059] In a third aspect, a communication device is provided. The device may be a network device, or a chip or circuit configured in a network device, which is not limited in this application.

[0060] The device may include: a transceiver unit, used to send a wake-up signal through a first frequency resource, wherein the wake-up signal is used to wake up at least one terminal device; the transceiver unit is also used to send a synchronization signal through a second frequency resource, wherein the difference between the center frequency of the first frequency resource and the center frequency of the second frequency resource is less than or equal to a first threshold, and / or the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, and the wake-up signal and the synchronization signal are modulated using on-off keying (OOK).

[0061] In combination with the third aspect, in certain implementations of the third aspect, the total bandwidth is determined based on the minimum frequency resource index and the maximum frequency resource index, wherein the minimum frequency resource index is the index of the smallest frequency resource between the first frequency resource and the second frequency resource, and the maximum frequency resource index is the index of the largest frequency resource between the first frequency resource and the second frequency resource.

[0062] In combination with the third aspect, in certain implementations of the third aspect, the bandwidth indicated by the minimum frequency resource index and the maximum frequency resource index is less than or equal to the second threshold.

[0063] In combination with the third aspect, in certain implementations of the third aspect, the center frequency of the first frequency resource and the center frequency of the second frequency resource are the same, and the first threshold is 0.

[0064] In combination with the third aspect, in certain implementations of the third aspect, the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same, wherein the first bandwidth is the sum of the bandwidth occupied by the first wake-up signal and the protection bandwidth of the wake-up signal, and the second bandwidth is the sum of the bandwidth occupied by the synchronization signal and the protection bandwidth of the synchronization signal.

[0065] In combination with the third aspect, in some implementations of the third aspect, a bandwidth occupied by the synchronization signal is smaller than a bandwidth occupied by the wake-up signal.

[0066] In combination with the third aspect, in certain implementations of the third aspect, the transceiver unit is further used to send first configuration information and second configuration information, wherein the first configuration information is used to indicate the center frequency of the first frequency resource, and the second configuration information is used to indicate one of the starting frequency unit, the ending frequency unit or the bandwidth of the second frequency resource; or, the first configuration information is used to indicate the center frequency of the second frequency resource, and the second configuration information is used to indicate one of the starting frequency unit, the ending frequency unit or the bandwidth of the first frequency resource.

[0067] In combination with the third aspect, in certain implementations of the third aspect, the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, and the first configuration information or the second configuration information is also used to indicate the difference between the center frequency point of the first frequency resource and the center frequency point of the second frequency resource.

[0068] In combination with the third aspect, in certain implementations of the third aspect, the transceiver unit is further used to send third configuration information, where the third configuration information is used to indicate a protection bandwidth of the wake-up signal or a protection bandwidth of the synchronization signal.

[0069] In combination with the third aspect, in certain implementations of the third aspect, the wake-up signal is a low power wake-up signal LP-WUS, and the synchronization signal is a low power synchronization signal LP-SS.

[0070] In a fourth aspect, a communication device is provided. The device may be a terminal device, or may be a chip or circuit configured in the terminal device, which is not limited in this application.

[0071] The device may include: a transceiver unit, used to receive a wake-up signal through a first frequency resource, wherein the wake-up signal is used to wake up at least one terminal device; the transceiver unit is also used to receive a synchronization signal through a second frequency resource, wherein the difference between the center frequency of the first frequency resource and the center frequency of the second frequency resource is less than or equal to a first threshold, and / or the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, and the wake-up signal and the synchronization signal are modulated using on-off keying (OOK).

[0072] In combination with the fourth aspect, in certain implementations of the fourth aspect, the total bandwidth is determined based on the minimum frequency resource index and the maximum frequency resource index, the minimum frequency resource index being the index of the smallest frequency resource between the first frequency resource and the second frequency resource, and the maximum frequency resource index being the index of the largest frequency resource between the first frequency resource and the second frequency resource.

[0073] In combination with the fourth aspect, in certain implementations of the fourth aspect, the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, and the bandwidth indicated by the minimum frequency resource index and the maximum frequency resource index is less than or equal to the second threshold.

[0074] In combination with the fourth aspect, in certain implementations of the fourth aspect, the center frequency of the first frequency resource and the center frequency of the second frequency resource are the same, and the first threshold is 0.

[0075] In combination with the fourth aspect, in certain implementations of the fourth aspect, the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same, wherein the first bandwidth is the sum of the bandwidth occupied by the wake-up signal and the protection bandwidth of the wake-up signal, and the second bandwidth is the sum of the bandwidth occupied by the synchronization signal and the protection bandwidth of the synchronization signal.

[0076] In combination with the fourth aspect, in certain implementations of the fourth aspect, a bandwidth occupied by the synchronization signal is smaller than a bandwidth occupied by the wake-up signal.

[0077] In combination with the fourth aspect, in certain implementations of the fourth aspect, the device includes a processing unit and a transceiver unit, and is further used to receive first configuration information and second configuration information, wherein the first configuration information is used to indicate the center frequency of the frequency resource for sending the wake-up signal, and the second configuration information is used to indicate the starting frequency domain unit, the ending frequency unit or the bandwidth of the frequency resource for sending the synchronization signal; or, the first configuration information is used to indicate the center frequency of the frequency resource for sending the synchronization signal, and the second configuration information is used to indicate the starting frequency domain unit, the ending frequency unit or the bandwidth of the frequency resource for sending the wake-up signal; the processing unit is used to determine the first frequency resource and the second frequency resource based on the first configuration information and the second configuration information.

[0078] In combination with the fourth aspect, in certain implementations of the fourth aspect, the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, and the first configuration information or the second configuration information is also used to indicate the difference between the center frequency point of the first frequency resource and the center frequency point of the second frequency resource.

[0079] In combination with the fourth aspect, in certain implementations of the fourth aspect, the transceiver unit is further used to receive third configuration information; the processing unit is further used to determine the protection bandwidth of the wake-up signal and the protection bandwidth of the synchronization signal based on the third configuration information.

[0080] In combination with the fourth aspect, in certain implementations of the fourth aspect, the wake-up signal is a low power wake-up signal LP-WUS, and the synchronization signal is a low power synchronization signal LP-SS.

[0081] In a fifth aspect, a communication device is provided, the device being configured to execute the method provided in any one of the first to fourth aspects. Specifically, the device may include units and / or modules, such as a processing unit and / or a communication unit, for executing the method provided in any one of the above implementations of any one of the first to fourth aspects.

[0082] In one implementation, the apparatus is a communication device (e.g., a terminal device or 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.

[0083] In another implementation, the apparatus is a chip, chip system, or circuit used in a communication device. When the apparatus is a chip, chip system, or circuit used in a device, the communication unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip, chip system, or circuit; and the processing unit may be at least one processor, processing circuit, or logic circuit.

[0084] In a sixth aspect, a communication device is provided, comprising: at least one processor for executing the method provided by any one of the above-mentioned implementations of any one of the above-mentioned first to fourth aspects.

[0085] Optionally, the device further includes: a memory for storing programs; accordingly, at least one processor is used to execute computer programs or instructions stored in the memory.

[0086] In one implementation, the apparatus is a communication device (such as a terminal device or a network device).

[0087] In another implementation, the apparatus is a chip, a chip system, or a circuit used in a communication device.

[0088] In a seventh aspect, the present application provides a processor for executing the methods provided in the above aspects.

[0089] For the operations such as sending and acquiring / receiving involved in the processor, unless otherwise specified, or if they do not conflict with their actual functions or internal logic in the relevant descriptions, they can be understood as operations such as processor output and input, or as sending and receiving operations performed by the radio frequency circuit and antenna. This application does not limit this.

[0090] In an eighth aspect, a computer-readable storage medium is provided, which stores a program code for execution by a device, and the program code includes a method provided by any one of the above-mentioned implementation methods for executing any one of the above-mentioned first to fourth aspects.

[0091] In a ninth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute the method provided by any one of the above-mentioned implementations of any one of the above-mentioned first to fourth aspects.

[0092] In the tenth aspect, a chip is provided, which includes a processor and a communication interface. The processor reads instructions stored in a memory through the communication interface and executes the method provided by any of the above-mentioned implementation methods of any of the above-mentioned first to fourth aspects.

[0093] Optionally, as an implementation method, the chip also includes a memory, in which a computer program or instruction is stored, and the processor is used to execute the computer program or instruction stored in the memory. When the computer program or instruction is executed, the processor is used to execute the method provided in any one of the above-mentioned implementation methods of any one of the first to sixth aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0094] FIG1 is a schematic diagram of an architecture 100 of a communication system applicable to an embodiment of the present application.

[0095] FIG2 is a schematic diagram of a main circuit and a wake-up circuit applicable to an embodiment of the present application.

[0096] FIG3 is a waveform diagram of a signal suitable for an embodiment of the present application when OOK modulation is used.

[0097] FIG4 is a schematic diagram of a waveform of a signal after passing through a channel applicable to an embodiment of the present application.

[0098] FIG5 is a schematic diagram of a frequency domain position of an LP-WUS applicable to an embodiment of the present application.

[0099] FIG6 is a schematic diagram of frequency domain positions of an LP-WUS and an LP-SS applicable to an embodiment of the present application.

[0100] FIG7 is a schematic flowchart of a communication method 700 applicable to an embodiment of the present application.

[0101] FIG8 is a schematic diagram of frequency domain positions of an LP-WUS and an LP-SS applicable to an embodiment of the present application.

[0102] FIG9 is a schematic diagram of another frequency domain position of LP-WUS and LP-SS applicable to an embodiment of the present application.

[0103] FIG10 is a schematic diagram of a communication device applicable to an embodiment of the present application.

[0104] FIG11 is a structural block diagram of a communication architecture applicable to an embodiment of the present application. DETAILED DESCRIPTION

[0105] The technical solution in this application will be described below with reference to the accompanying drawings.

[0106] The technical solutions provided in this application can be applied to various communication systems, such as: fifth generation (5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, etc. The technical solutions provided in this application can also be applied to future communication systems, such as sixth generation (6G) mobile communication systems. The technical solutions provided in this application can also be applied to device to device (D2D) communication, vehicle to everything (V2X) communication, machine to machine (M2M) communication, machine type communication (MTC), and Internet of Things (IoT) communication systems. The technical solutions provided in this application can also be applied to non-terrestrial network (NTN) systems such as intersatellite communication and satellite communication.

[0107] As an example, a satellite communication system includes a satellite base station and terminal devices. The satellite base station provides communication services to the terminal devices. The satellite base station can also communicate with other base stations. Satellites can function as both base stations and terminal devices. Satellites can refer to drones, hot air balloons, low-orbit satellites, medium-orbit satellites, high-orbit satellites, and other satellites. Satellites can also refer to non-ground base stations or non-ground devices.

[0108] As an example, V2X communication may include vehicle-to-vehicle (V2V) communication, vehicle-to-roadside infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, and vehicle-to-network (V2N) communication.

[0109] A device in a communication system can send signals to or receive signals from another device. The signals may include information, signaling, or data. The term "device" may also be replaced by an entity, network entity, communication device, communication apparatus, communication module, node, communication node, etc. This disclosure uses devices as an example for description.

[0110] The terminal devices in the embodiments of the present application include various devices with wireless communication functions, which can be used to connect people, objects, machines, etc. The terminal devices can be widely used in various scenarios, such as: cellular communication, D2D, V2X, peer to peer (P2P), M2M, MTC, IoT, virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city drones, robots, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery, etc. The terminal device can be a terminal in any of the above scenarios, such as an MTC terminal, an IoT terminal, etc. The terminal device may be a user equipment (UE) of the third generation partnership project (3GPP) standard, a terminal, a fixed device, a mobile station device or a mobile device, a subscriber unit, a handheld device, a vehicle-mounted device, a wearable device, a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a wireless data card, a personal digital assistant (PDA), a computer, a tablet computer, a notebook computer, a wireless modem, a handheld device (handset), a laptop computer, a computer with wireless transceiver function, a smart book, a vehicle, a satellite, a global positioning system (GPS) device, a target tracking device, an aircraft (such as a drone, a helicopter, or an airplane), a ship, a remote control device, a smart home device, an industrial device, or a device built into the above-mentioned device (such as a communication module, a modem or a chip in the above-mentioned device), or other processing devices connected to a wireless modem. For the sake of convenience of description, the terminal device will be described below by taking the terminal or UE as an example.

[0111] It should be understood that in some scenarios, a UE can also be used to act as a base station. For example, a UE can act as a scheduling entity that provides sidelink signals between UEs in scenarios such as V2X, D2D, or P2P.

[0112] In the embodiments of the present application, the device for implementing the function of the terminal device, i.e., the terminal device, can be the terminal device, or a device capable of supporting the terminal device to implement the function, such as a chip system or chip, which can be installed in the terminal device. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0113] The network device in the embodiments of the present application may be a device for communicating with a terminal device, and may also be referred to as an access network device or a radio access network device. For example, 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 (RAN) node (or device) that connects a terminal device to a wireless network. A base station can broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point, master station, auxiliary station, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can 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 can also refer to a communication module, modem or chip used to be provided in the aforementioned device or apparatus. The base station can also be a mobile switching center and a device that performs base station functions in D2D, V2X, and M2M communications, a network-side device in a 6G network, or a device that performs base station functions in future communication systems. The base station can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by the network equipment.

[0114] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0115] 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 control plane CU node (central unit control plane (central unit-control plane, CU-CP)) and a user plane CU node (central unit user plane (central unit-user plane, CU-UP)) and a DU node.

[0116] In some deployments, multiple RAN nodes collaborate to assist terminals in achieving wireless access, with different RAN nodes implementing portions of the base station's functionality. For example, a RAN node can be a CU, DU, CU-CP, CU-UP, or radio unit (RU). The CU and DU can be separate or included in the same network element, such as the BBU. The RU can be included in a radio frequency device or radio unit, such as an RRU, AAU, or RRH.

[0117] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, the radio access network may also be an open radio access network (O-RAN) architecture. In the ORAN system, CU may also be called an open CU (open CU, O-CU), DU may also be called an open DU (open DU, O-DU), CU-CP may also be called an open (open CU-CP, O-CU-CP), CU-UP may also be called an open (open CU-UP, O-CU-UP), and RU may also be called an open RU (open RU, O-RU). Any unit of CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0118] In the embodiments of the present application, the apparatus for implementing the function of the network device can be the network device, or it can be an apparatus capable of supporting the network device to implement the function, such as a chip system or chip, which can be installed in the network device. In the embodiments of the present application, the chip system can be composed of a chip, or it can include a chip and other discrete devices.

[0119] The network equipment and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the network equipment and terminal devices are located.

[0120] First, a communication system applicable to an embodiment of the present application is briefly introduced with reference to FIG1 as follows.

[0121] FIG1 is a schematic diagram of a communication system 100 applicable to an embodiment of the present application. As shown in FIG1 , the wireless communication system 100 may include at least one network device, such as the network devices 110a and 110b (collectively referred to as network devices 110) shown in FIG1 . The wireless communication system 100 may also include at least one terminal device, such as the terminal devices 120a-120j (collectively referred to as terminal devices 120) shown in FIG1 . Both the network device and the terminal device may be configured with multiple antennas, and the network device and the terminal device may communicate using multi-antenna technology. Terminal devices may also communicate with each other. For example, terminal devices may communicate directly with each other. For another example, terminal devices may communicate with each other through other communication devices, such as network devices or other terminal devices.

[0122] When a network device communicates with a terminal device, the network device can manage one or more cells, and a cell can have an integer number of terminal devices. Optionally, network device 110 and terminal device 120 form a single-cell communication system. Without loss of generality, this cell is referred to as cell #1. Network device 110 can be a network device in cell #1, or network device 110 can serve a terminal device (e.g., terminal device 120) in cell #1.

[0123] In one cell, for example, cell #1, the network device 110 may send a paging message to the terminal device 120 .

[0124] Terminal devices in a cell can receive paging messages regardless of whether they are in idle or inactive state.

[0125] It should be noted that a cell can be understood as an area within the coverage range of wireless signals of network equipment.

[0126] It should be understood that Figure 1 is a simplified schematic diagram for ease of understanding, and the wireless communication system 100 may also include other network devices such as the core network 200 and the Internet 300, or may also include other terminal devices, which are not shown in Figure 1. The embodiments of the present application can be applied to any communication scenario in which a transmitting device and a receiving device communicate.

[0127] To facilitate understanding of the embodiments of the present application, the following is a brief explanation of the terms involved in the embodiments of the present application.

[0128] 1. Wake-up circuit: also known as wake-up receiver / radio (WUR) or low-power wake-up receiver (LP-WUR) or wake-up module, can be understood as a separate low-power small circuit, such as the circuit used by the terminal device in an idle state or an inactive state. The low-power small circuit can be implemented using a separate small circuit or chip with a simple structure, and its power consumption is low. It can be understood that the wake-up circuit is only a name for distinction, and its specific naming does not limit the scope of protection of this application. For example, without loss of generality, the wake-up circuit can also be described as a first circuit (or first module). The following is uniformly described as a wake-up circuit.

[0129] The signal received by the terminal device using the wake-up circuit can be said to be transmitted on the wake-up link. The wake-up link represents a connection relationship between the terminal device and the network device. It is a logical concept, not a physical entity. It is understood that the wake-up link is only a name used for differentiation and its specific naming does not limit the scope of protection of this application. For example, without loss of generality, the wake-up link can also be described as the first link. It is uniformly described below as the wake-up link.

[0130] The signal received by the terminal device using the wake-up circuit can be called a wake-up signal (WUS) or a low-power wake-up signal (LP-WUS). It can be understood that the wake-up signal is only named for distinction, and its specific naming does not limit the scope of protection of this application. For example, without loss of generality, the wake-up signal can also be called the first signal. hereinafter uniformly described as a wake-up signal.

[0131] Among them, the wake-up signal can be used to wake up at least one terminal device. Waking up the terminal device means waking up the main circuit of the terminal device. As an example, the wake-up signal is used to indicate information related to paging, and the paging-related information may include, for example, whether a terminal device or a group of terminal devices is paged. The wake-up signal may also be called a low power wake-up signal (LP-WUS), and its specific naming does not limit the scope of protection of this application.

[0132] The terminal device can also receive synchronization signals using the wake-up circuit.

[0133] The synchronization signal can be used to implement synchronization functions and can also be used to implement some measurement functions performed by waking up the circuit, such as radio resource management (RRM) measurements. The synchronization signal is also called a low-power synchronization signal (LP-SS).

[0134] 2. Main circuit: also known as the main receiver (MR) or main module, it can be understood as the circuit used by the terminal device when transmitting data normally, or the circuit used by the terminal device when transmitting data in a connected state. When the terminal device uses the main circuit to transmit data, it consumes a lot of power. It can be understood that the main circuit is only a name made for distinction, and its specific naming does not limit the scope of protection of this application. For example, without loss of generality, the main circuit can also be described as the second circuit (or second module). The following unified description is the main circuit.

[0135] Signals received by a terminal device using the primary circuit can be said to be transmitted on the primary link. The primary link represents a connection between the terminal device and the network device and is a logical concept, not a physical entity. It should be understood that the primary link is a name used for differentiation only and does not limit the scope of protection of this application. For example, without loss of generality, the primary link can also be described as a secondary link. The following description uniformly refers to the primary link.

[0136] Refer to FIG2 , which is a schematic diagram of a main circuit and a wake-up circuit as an example.

[0137] As shown in Figure 2, the terminal device can receive (or detect) a wake-up signal through the wake-up circuit, and the terminal device can receive a data signal through the main circuit. Assume that the terminal device receives a wake-up signal through the wake-up circuit. If the terminal device does not detect the wake-up signal, it continues to use the wake-up circuit to receive the wake-up signal, and the main circuit can be in an off state (or a sleep state); if the terminal device detects the wake-up signal, it triggers the wake-up of the main circuit, that is, the main circuit is in / switched to an on state (or a working state, or an active state). After the main circuit is turned on, the terminal device can transmit data signals through the main circuit.

[0138] 3. On-off keying (OOK) modulation: This modulates information based on whether a signal is transmitted or not. The corresponding wake-up circuit can use envelope detection to receive the signal. OOK modulation technology can be demodulated using a low-complexity receiver, thus achieving the low power consumption goal of the wake-up circuit. To ensure power efficiency, the wake-up signal can use OOK modulation. It is understood that other modulation methods can also be used for the wake-up signal, and this is not limited.

[0139] When a signal is modulated using OOK, each bit (i.e., an encoded bit) corresponds to a symbol. Equivalently, a symbol can also be called a chip, or other names, which are not limited here.

[0140] For example, when a bit is "1," a signal is transmitted within the symbol length (i.e., the signal transmission power within the symbol length is not 0, or the signal transmission power within the symbol length is greater than a certain threshold); when a bit is "0," no signal is transmitted within the symbol length (i.e., the signal transmission power within the symbol length is 0, or the signal transmission power within the symbol length is less than a certain threshold). Alternatively, in OOK modulation, if energy is transmitted, it represents "1," and if no energy is transmitted, it represents "0."

[0141] For another example, when a bit is "0," a signal is transmitted within the symbol length (i.e., the signal transmission power within the symbol length is not 0, or the signal transmission power within the symbol length is greater than a certain threshold); when a bit is "1," no signal is transmitted within the symbol length (i.e., the signal transmission power within the symbol length is 0, or the signal transmission power within the symbol length is less than a certain threshold). Alternatively, in OOK modulation, if energy is transmitted, it represents "0," and if no energy is transmitted, it represents "1."

[0142] In the following, for the convenience of description, an example is mainly taken as follows: when a bit is "1", a signal is sent within the symbol length; when a bit is "0", no signal is sent within the symbol length.

[0143] For ease of description, if a symbol contains a signal, it is referred to as an ON symbol; if no signal is transmitted within a symbol, it is referred to as an OFF symbol. For example, when a bit is "1," a signal is transmitted within the symbol's length; when a bit is "0," no signal is transmitted within the symbol's length. An ON symbol indicates a "1" information bit, and an OFF symbol indicates a "0" information bit. The ON symbol can also be referred to as an ON signal, and the OFF symbol can also be referred to as an OFF signal. For consistency, the following descriptions use the terms ON symbol and OFF symbol.

[0144] In addition, the OOK symbols mentioned below refer to symbols obtained using OOK modulation. OOK symbols can be, for example, ON symbols or OFF symbols. For example, if the information bit is "1," the OOK symbol obtained through OOK modulation is an ON symbol, while if the information bit is "0," the OOK symbol obtained through OOK modulation is an OFF symbol. OOK symbols can also be called OOK signals; for consistency, they are used in the following descriptions.

[0145] Refer to FIG3 , as an example, which is a waveform diagram of a signal when OOK modulation is adopted.

[0146] As an example, assume that when a bit is "1," a signal is transmitted within the OOK symbol length; when a bit is "0," no signal is transmitted within the OOK symbol length. Therefore, the waveform shown in Figure 3 represents the four bits "1010," meaning the first and third bits are ON symbols, and the second and fourth bits are OFF symbols. As shown in Figure 3, communication systems generally use a specific frequency for transmission, and the transmitted signal must be modulated onto a carrier. At the receiving end, the receiver detects the envelope (or energy) of the received signal and determines whether the OOK symbol corresponds to a bit "0" or a bit "1," thereby completing demodulation.

[0147] When OOK modulation is used, the receiver structure is simple and power consumption is low, achieving the goal of saving power in the wake-up circuit. However, the transmission rate is low. Specifically, when OOK modulation is used, each symbol can only transmit one bit. Furthermore, given the multipath delay in wireless communication systems, the duration of each symbol must be sufficiently long to minimize the inter-symbol interference (ISI) caused by multipath delay. Therefore, when OOK modulation is used, each symbol carries one bit of information, and the duration of each symbol is long, resulting in a low transmission rate.

[0148] 4. OFDM Receiver: To further improve demodulation performance, a more advanced receiver, such as an OFDM receiver with both I / Q channels, can be considered. The signal received by the OFDM receiver first passes through a matching network and radio frequency (RF) filters to remove out-of-band noise and interference. A mixer then shifts the spectrum to the baseband (BB). This shift creates two separate I and Q channels (with a phase difference of pi / 2 between the corresponding mixing signals). The signals in each channel are then filtered through a baseband filter to further remove out-of-band noise and interference. The two signals are then combined. The baseband signal is then mathematically represented as a complex number, representing both amplitude and phase. This baseband signal undergoes further processing.

[0149] When an OFDM receiver is used to receive an OOK signal, it can further detect the sequence information within the OOK ON symbol because it has the ability to detect signal phase. For example, if the OFDM receiver knows in advance (e.g., through protocol pre-definition or network equipment pre-configuring relevant parameters for the terminal device) the specific information for generating the ON symbol sequence, the OFDM receiver can generate the same sequence locally. When receiving the OOK signal, the receiver can correlate the received signal with the local sequence, thereby mitigating the impact of (in-band) noise and / or interference not filtered out by the filter, thereby improving demodulation performance.

[0150] Alternatively, if there are multiple possible sequences for generating the ON symbol, the OFDM receiver can even detect which sequence was transmitted, thereby obtaining more information. For example, assuming there are four possible sequences for generating the ON symbol, each corresponding to the information {00, 01, 10, 11}, the OFDM receiver can obtain an additional 2 bits of information by detecting the sequence used. This can increase the data rate carried by LP-WUS.

[0151] The above method of "letting the OFDM receiver know the information of the sequence used to generate the OOK signal, thereby improving demodulation performance and / or increasing the data rate" is called sequence on top of OOK or overlaid sequence over OOK.

[0152] 5. Low-power synchronization signal (LP-SS): can be used to implement synchronization functions and can also be used to implement RRM measurement functions.

[0153] After passing through the channel, the signal may be distorted due to the influence of the channel state, etc. Taking the OOK modulation waveform shown in Figure 3 as an example, the waveform shown in Figure 3 may become the waveform shown in Figure 4 at the receiving end.

[0154] Refer to Figure 4, as an example, which is a schematic diagram of the waveform of the signal after it passes through the channel. In order to determine whether the signal corresponds to bit "0" or bit "1", the terminal device can compare the received signal level value with a threshold (the threshold is shown as a dotted line in Figure 4). For example, if the signal level value received by the terminal device is greater than the threshold, it indicates that the signal corresponds to bit "1"; if the signal level value received by the terminal device is less than the threshold, it indicates that the signal corresponds to bit "0". As shown in Figure 4, if the terminal device compares the signal level value received within the range of t2 with the threshold, the judgment is accurate; if the terminal device compares the signal level value received within the range of t1 or t3 with the threshold, the judgment is inaccurate, that is, 1 will be mistakenly judged as 0.

[0155] Therefore, when a terminal device uses a wake-up circuit to receive a wake-up signal, it must obtain time synchronization with the wake-up link to correctly receive the wake-up signal. Specifically, the terminal device can determine the location of a symbol boundary and, based on the boundary location, determine whether the signal corresponds to a 0 or a 1. For example, the terminal device can use the level value at the center of the symbol to determine whether the signal corresponds to a 0 or a 1. Furthermore, due to the limited accuracy of the terminal device's local clock, time drift may occur. If the wake-up link does not provide synchronization, after the terminal device has operated on the wake-up link for a period of time, it is likely that the terminal device and the network device will become out of sync (i.e., the symbol boundary locations perceived by the terminal device and the network device will differ), thus affecting signal reception.

[0156] In order to support the synchronization function, LP-SS can be introduced. Specifically, the terminal device can complete the synchronization function based on the LP-SS. As an example, the LP-SS is sent periodically.

[0157] As an example, the modulation mode of LP-SS is OOK. The modulation mode of LP-SS is OOK, which can also be described as follows: within the time interval corresponding to LP-SS, some time domain positions have energy, while some time domain positions do not have energy.

[0158] In addition, the ON / OFF symbol pattern (or mode or pattern) of LP-SS can follow a specific order to enhance its detection performance. For example, LP-SS can be generated based on a binary sequence with good autocorrelation characteristics.

[0159] In addition, LP-SS can also use Sequence on top of OOK or overlaid sequence over OOK technology to enable OFDM receivers to utilize LP-SS.

[0160] 6. First frequency resource and second frequency resource

[0161] The following takes the terminal device as an example to introduce the first frequency resource and the second frequency resource.

[0162] As a first possible scenario, the terminal device includes a first module and a second module. For example, the power consumption of the first module may be less than the power consumption of the second module. The first module may, for example, be the wake-up circuit in Figure 2, or it may also be a receiving module of the wake-up circuit; the second module may, for example, be the main circuit in Figure 2, or it may also be a receiving module of the main circuit. In this application, the first module may be replaced by the wake-up circuit (or the first circuit), and the second module may be replaced by the main circuit (or the second circuit). The following text is unified and described in terms of the first module and the second module.

[0163] In this case, the first frequency resource may indicate the frequency resource used by the terminal device to transmit LP-WUS through the first module, and the second frequency resource may indicate the frequency resource used by the terminal device to transmit LP-SS through the first module.

[0164] It can be understood that the above mainly introduces the first frequency resource and the second frequency resource using the terminal device as an example. It can be understood that the above description is also applicable to other communication devices (such as network devices). For the sake of brevity, it will not be repeated here.

[0165] 7. LP-WUS signal bandwidth and frequency domain position

[0166] The signal bandwidth of the LP-WUS may not exceed 5 MHz, or may not exceed 20 MHz.

[0167] Referring to FIG5 , as an example, FIG5 shows a schematic diagram of the frequency domain location of an LP-WUS. As shown in FIG5 , the frequency domain location of the LP-WUS can be in-band, out-band, or in a guard band. In-band refers to the situation where the frequency domain location of the LP-WUS / LP-SS and the frequency domain locations of other signals in a cell are within the same carrier; out-band refers to the situation where the frequency domain locations of other signals (i.e., non-LP-WUS / LP-SS signals) in a cell are within a carrier, but the frequency domain location of the LP-WUS / LP-SS in the cell is outside the carrier; and guard band refers to the situation where the frequency domain locations of other signals (i.e., non-LP-WUS / LP-SS signals) in a cell are within a carrier, but the frequency domain location of the LP-WUS / LP-SS in the cell is within the carrier's guard band.

[0168] The frequency domain position pattern of the LP-WUS shown in FIG5 is only an example and does not limit the protection scope of the embodiments of the present application.

[0169] However, there is no limitation on the positional relationship between LP-WUS and LP-SS in the frequency domain.

[0170] Referring to FIG6 , as an example, FIG6 shows a schematic diagram of the frequency domain positions of LP-WUS and LP-SS. The frequency domain positions of LP-WUS and LP-SS shown in FIG6(a) and FIG6(b) are not limited. As shown in FIG6(a), the receiving bandwidth of the terminal device can perform frequency hopping reception based on the frequency domain positions of LP-WUS and LP-SS. This reception method may increase the implementation difficulty and power consumption of the terminal device. As shown in FIG6(b), the terminal device can increase the receiving bandwidth based on the frequency domain positions of LP-WUS and LP-SS so that the total receiving bandwidth of the terminal device can cover the frequency domain positions of LP-WUS and LP-SS. This reception method may increase the power consumption of the terminal device. At the same time, to avoid interfering with the terminal device's reception of LP-WUS / LP-SS, the network device cannot send other signals at the white position in the dotted box in the figure, which results in increased resource overhead.

[0171] The frequency domain position pattern of the LP-WUS and LP-SS shown in FIG6 is only an example and does not limit the protection scope of the embodiments of the present application.

[0172] In view of this, an embodiment of the present application provides a communication method that reduces the implementation complexity of a terminal device and avoids resource waste by defining the positional relationship between the LP-WUS and the LP-SS in the frequency domain.

[0173] It should be noted that in this application, "indication" can include direct indication and indirect indication. When describing that a certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.

[0174] In this application, the information indicated by the indication information is referred to as the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved with the help of the arrangement order of each information agreed in advance (for example, stipulated by the protocol), thereby reducing the indication overhead to a certain extent. In addition, the information to be indicated can be sent together as a whole, or it can be divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different.

[0175] In addition, in this application, the expression " / " is used to indicate that the objects associated with each other are in an "or" relationship; for example, A / B can mean: A or B. The expression "and / or" is used to indicate that the objects associated with each other can be in an and relationship or an or relationship; for example, A and / or B can mean the following situations: A exists alone, B exists alone, and A and B exist at the same time, where A and B can be single or multiple. "At least one of the following" or similar expressions is used to indicate any combination of the listed items; for example, at least one of A, B and / or C can mean the following situations: A exists alone, B exists alone, C exists alone, A and B exist at the same time, B and C exist at the same time, A and C exist at the same time, and A, B and C exist at the same time, where A, B, and C can be single or multiple.

[0176] The following will describe in detail the method provided by the embodiment of the present application in conjunction with the accompanying drawings. The embodiment provided by the present application can be applied to the scenarios shown in the above figures without limitation.

[0177] The solution of this application is described in detail below.

[0178] Referring to Figure 7, as an example, Figure 7 is a schematic diagram of a communication method 700 provided in an embodiment of the present application. For the convenience of description below, an example of an execution subject of method 700 is the interaction between a network device (such as an access network device) and a terminal device. It can be understood that the execution subject of method 1100 can also be a component of a network device or a terminal device, such as a chip or a chip system or a circuit, which is not limited to this. The steps described below as being performed by a single execution subject can also be divided into steps performed by multiple execution subjects, and these execution subjects can be logically and / or physically separated. The method 700 shown in Figure 7 may include the following steps.

[0179] Method 700 includes step 710 . Optionally, method 700 includes step 720 .

[0180] S710: Send a wake-up signal through a first frequency resource, and send a synchronization signal through a second frequency resource.

[0181] In step 710, the access network device uses the first frequency resource to send a wake-up signal and uses the second frequency resource to send a synchronization signal.

[0182] In step S710, there is no limitation on the order in which the access network device sends the wake-up signal and the synchronization signal.

[0183] As an example, the wake-up signal is used to wake up at least one terminal device. For details about the wake-up signal, please refer to the above description.

[0184] As an example, the synchronization signal is used to implement a synchronization function. For details about the synchronization function, please refer to the above description.

[0185] The wake-up signal and synchronization signal are modulated using OOK. Alternatively, the following descriptions may be used: within the time interval corresponding to the wake-up signal / synchronization signal, some time domain positions have energy, while others do not; or the energy at some time domain positions is higher than a first threshold, while the energy at some time domain positions is lower than a second threshold, where the first threshold is greater than or equal to the second threshold; or the wake-up signal / synchronization signal includes X OOK symbols, where the X OOK symbols include X1 first symbols and X2 second symbols, where the signal amplitude of the first symbol is greater than or equal to threshold #1, and the signal amplitude of the second symbol is less than or equal to threshold #2, where X is an integer greater than 0, X1 and X2 are integers greater than or equal to 0, and X1+X2=X. wherein, the signal amplitude of the first symbol is greater than or equal to threshold #1, and the signal amplitude of the second symbol is less than or equal to threshold #2, can be replaced by any of the following: the signal amplitude of the first symbol is greater than the signal amplitude of the second symbol; within a preset time period, the signal amplitude of the first symbol is greater than the signal amplitude of the second symbol; the signal power of the first symbol is greater than the signal power of the second symbol; within a preset time period, the signal power of the first symbol is greater than the signal power of the second symbol; the signal power of the first symbol is greater than or equal to threshold #1, and the signal power of the second symbol is less than or equal to threshold #2; within a preset time period, the signal power of the first symbol is greater than or equal to threshold #1, and the signal power of the second symbol is less than or equal to threshold #2; the signal level value of the first symbol is greater than the signal level value of the second symbol; within a preset time period, the signal level value of the first symbol is greater than the signal level value of the second symbol; the signal level value of the first symbol is greater than or equal to threshold #1, and the signal level value of the second symbol is less than or equal to threshold #2; within a preset time period, the signal level value of the first symbol is greater than or equal to threshold #1, and the signal level value of the second symbol is less than or equal to threshold #2; or, the first symbol indicates (or corresponds to, or represents) threshold #1, and the second symbol indicates (or corresponds to, or represents) the second bit value. The first bit value and the second bit value are different. In one example, the first bit value is "1" and the second bit value is "0". In another example, the first bit value is "0" and the second bit value is "1".

[0186] The frequency domain positions of the first frequency resource and the second frequency resource may meet certain conditions.

[0187] In one possible implementation, a difference between a center frequency point of the first frequency resource and a center frequency point of the second frequency resource is less than or equal to a first threshold.

[0188] The first threshold may be predefined, preconfigured, pre-agreed, or pre-stored.

[0189] Among them, the center frequency of the first frequency resource can indicate the frequency domain position of the first frequency resource, the center frequency of the second frequency resource can indicate the frequency domain position of the second frequency resource, and the difference between the center frequency of the first frequency resource and the center frequency of the second frequency resource can indicate the relationship between the frequency domain positions of the first frequency resource and the second frequency resource.

[0190] As an example, when the difference between the center frequency of the first frequency resource and the center frequency of the second frequency resource is less than the first threshold, the frequency domain position of the first frequency resource and the frequency domain position of the second frequency resource are constrained within a certain range by the difference between their center frequencies.

[0191] Exemplarily, when the center frequency of the first frequency resource is the same as the center frequency of the second frequency resource, the first threshold is 0. In other words, when the first threshold is 0, the center frequency of the first frequency resource is aligned with the center frequency of the second frequency resource.

[0192] As an example, the wake-up signal may be LP-WUS, and the synchronization signal may be LP-SS.

[0193] Referring to FIG. 8 , as an example, FIG. 8 shows a schematic diagram of frequency domain positions of an LP-WUS and an LP-SS applicable to an embodiment of the present application.

[0194] In FIG8( a ) and FIG8 ( b ), the center frequency of the first frequency resource of the LP-WUS is the same as the center frequency of the second frequency resource of the LP-SS.

[0195] As an example, the bandwidth occupied by the wake-up signal and the bandwidth occupied by the synchronization signal may be the same or different, and this embodiment of the present application does not limit this.

[0196] As an example, the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same, wherein the first bandwidth is the sum of the bandwidth occupied by the wake-up signal and the protection bandwidth of the wake-up signal, and the second bandwidth is the sum of the bandwidth occupied by the synchronization signal and the protection bandwidth of the synchronization signal.

[0197] For example, the sum of the bandwidth occupied by LP-WUS and the protection bandwidth is equal to the sum of the bandwidth occupied by LP-SS and the protection bandwidth. In other words, the total bandwidth occupied by the two signals themselves and the protection bandwidth are equal.

[0198] It can be understood that in this case, easily schedulable resources can be reserved for other signals (eg, signals other than LP-WUS and LP-SS), which helps reduce the complexity of access network device scheduling.

[0199] As an example, when the total bandwidth occupied by the two signals and the protection bandwidth are equal, the bandwidth of the synchronization signal may be smaller than the bandwidth of the wake-up signal, that is, the bandwidth occupied by the synchronization signal may be smaller than the bandwidth occupied by the wake-up signal.

[0200] It's understandable that when the synchronization signal itself occupies a smaller bandwidth, the synchronization signal's protection bandwidth is correspondingly larger, thus preventing greater frequency offset interference before the terminal device uses the synchronization signal for frequency synchronization. In other words, the synchronization signal's protection bandwidth is larger, so even in the presence of a large frequency offset, the terminal device can receive the complete synchronization signal without receiving interference (interference signals outside the protection bandwidth), thus preventing excessive impact on reception performance (such as synchronization performance, demodulation performance, and measurement performance).

[0201] For example, as shown in Figure 8(a), the terminal device can use the resources within the dashed box to receive LP-SS and LP-WUS. Even if there is a large frequency offset, as long as the frequency offset is less than or equal to the (one-sided) guard bandwidth, the bandwidth occupied by the LP-SS itself remains largely within the receive resources, and interference outside the guard bandwidth is prevented from leaking in. Therefore, the impact on synchronization and measurement using LP-SS is minimal.

[0202] Next, the frequency resource configuration of the wake-up signal and the synchronization signal is described in detail.

[0203] In a possible implementation, the access network device sends the first configuration information and the second configuration information.

[0204] As an example, the first configuration information is used to indicate the center frequency of the first frequency resource, and the second configuration information is used to indicate one of the starting frequency unit, the ending frequency unit or the bandwidth of the second frequency resource; or, the first configuration information is used to indicate the center frequency of the second frequency resource, and the second configuration information is used to indicate one of the starting frequency unit, the ending frequency unit or the bandwidth of the first frequency resource.

[0205] Exemplarily, the starting frequency unit or the ending frequency unit may be a resource block (RB) or a resource element (RE), which is not limited in the embodiment of the present application.

[0206] The first configuration information is used to indicate the center frequency of the first frequency resource, and may include direct indication and indirect indication.

[0207] In a possible implementation, the first configuration information includes first indication information, where the first indication information is used to indicate a center frequency point of the first frequency resource.

[0208] In another possible implementation, the first configuration information includes at least two of a starting frequency unit, an ending frequency unit, or a bandwidth of the first frequency resource.

[0209] Similarly, the first configuration information is used to indicate the center frequency of the second frequency resource, which can include direct indication and indirect indication.

[0210] In a possible implementation, the first configuration information includes second indication information, where the second indication information is used to indicate a center frequency point of the second frequency resource.

[0211] In another possible implementation, the first configuration information includes at least two of a starting frequency unit, an ending frequency unit, or a bandwidth of the second frequency resource.

[0212] It can be understood that the center frequency of the first frequency resource and the center frequency of the second frequency resource are the same. The access network device can configure two items of the starting frequency unit, the ending frequency unit or the bandwidth of a frequency resource. The terminal device determines the center frequency of this frequency resource based on the starting frequency unit, the ending frequency unit or the bandwidth of this frequency resource. Since the center frequencies of the two frequency resources are the same, the terminal device also knows the center frequency of the other frequency resource. At this time, when the access network device configures another frequency resource, it can configure one of the starting frequency unit, the ending frequency unit or the bandwidth, and can determine the other frequency resource based on the center frequency and one of the starting frequency unit, the ending frequency unit or the bandwidth.

[0213] Based on the above configuration method, the configuration signaling overhead can be reduced.

[0214] As another example, the first configuration information is used to indicate two items of the starting frequency unit, the ending frequency unit or the bandwidth of the first frequency resource; the second configuration information is used to indicate two items of the starting frequency unit, the ending frequency unit or the bandwidth of the second frequency resource.

[0215] It can be understood that the terminal device determines the first frequency resource based on two of the starting frequency unit, the ending frequency unit or the bandwidth of the first frequency resource, and determines the second frequency resource based on two of the starting frequency unit, the ending frequency unit or the bandwidth of the second frequency resource.

[0216] It is understood that the first configuration information and the second configuration information can be configured through the same configuration information or configured through two configuration information respectively, which is not limited in the embodiment of the present application.

[0217] In a possible implementation, the access network device sends third configuration information.

[0218] The third configuration information is used to indicate a protection bandwidth of a wake-up signal and / or a protection bandwidth of a synchronization signal.

[0219] As an example, when the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same, the third configuration information can configure the protection bandwidth of one signal (one of the wake-up signal or the synchronization signal). Accordingly, the terminal device can determine the protection bandwidth of the other signal (the other of the wake-up signal or the synchronization signal) based on the fact that the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same. In this case, this configuration method can reduce configuration overhead.

[0220] As an example, the content of the third configuration information may be carried in the first configuration information and / or the second configuration information.

[0221] For example, the first configuration information includes a guard bandwidth of a wake-up signal, and the second configuration information includes a guard bandwidth of a synchronization signal.

[0222] As an example, the third configuration information may also be configured separately.

[0223] As an example, the third configuration information may also be configured through the same piece of configuration information as the first configuration information and the second configuration information.

[0224] The above configuration is merely an example and does not limit the scope of protection of the embodiments of the present application.

[0225] In another possible implementation, the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to the second threshold.

[0226] The second threshold may be predefined, preconfigured, pre-agreed, or pre-stored.

[0227] The total bandwidth is determined based on a minimum frequency resource index and a maximum frequency resource index. The minimum frequency resource index is the minimum frequency resource index between the first frequency resource and the second frequency resource, and the maximum frequency resource index is the index of the maximum frequency resource between the first frequency resource and the second frequency resource.

[0228] As an example, the total bandwidth is determined according to the bandwidth indicated by the minimum frequency resource index and the maximum frequency resource index. In other words, the bandwidth indicated by the minimum frequency resource index and the maximum frequency resource index is less than or equal to the second threshold.

[0229] Among them, the minimum frequency resource index can be used as the starting frequency resource index, the ending frequency resource index can be used as the maximum frequency resource index, and the bandwidth indicated by the minimum frequency resource index and the maximum frequency resource index can be understood as the bandwidth indicated by the starting frequency resource index and the ending frequency resource index.

[0230] As an example, the second threshold may indicate the number of RBs or the number of REs. In other words, the total bandwidth may be the number of RBs or the number of REs. This embodiment of the present application does not limit this.

[0231] For example, the frequency resource index interval of the first frequency resource is RB#2~RB#5, and the frequency resource index interval of the second frequency resource is RB#3~RB#8, then the maximum frequency resource index (as the ending frequency resource index) is #8, the minimum frequency resource index (as the starting frequency resource index) is #2, and the bandwidth indicated by the minimum frequency resource index and the maximum frequency resource index is the bandwidth of the frequency resource index interval RB#2~RB#8, that is, the total bandwidth is 7 RBs.

[0232] Referring to FIG. 9 , as an example, FIG. 9 shows a schematic diagram of frequency domain positions of another LP-WUS and LP-SS applicable to an embodiment of the present application.

[0233] In FIG. 9( a ) and FIG. 9 ( b ), the total bandwidth of the first frequency resource of the LP-WUS and the second frequency resource of the LP-SS is less than the second threshold.

[0234] In this scheme, by limiting the total bandwidth of the first frequency resource and the second frequency resource, the relative positions of the first frequency resource and the second frequency resource in the frequency domain are constrained, thereby avoiding the situation where the first frequency resource and the second frequency resource are deployed too far apart in the frequency domain (for example, the center frequency points of the first frequency resource and the second frequency resource are too far apart), thereby achieving control of the power consumption or complexity of the terminal device.

[0235] As an example, the bandwidth occupied by the wake-up signal and the bandwidth occupied by the synchronization signal may be the same or different, and this embodiment of the present application does not limit this.

[0236] As an example, the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same, wherein the first bandwidth is the sum of the bandwidth occupied by the wake-up signal and the protection bandwidth of the wake-up signal, and the second bandwidth is the sum of the bandwidth occupied by the synchronization signal and the protection bandwidth of the synchronization signal.

[0237] It can be understood that in this case, when the center frequencies of the first frequency resource and the second frequency resource are the same, easily schedulable resources can be reserved for other signals (for example, NR signals), which is conducive to reducing the complexity of access network equipment scheduling.

[0238] As an example, within the total bandwidth, other signals may be allowed to be transmitted, or may not be allowed to be transmitted, where other signals refer to signals other than LP-WUS and LP-SS.

[0239] FIG9( a ) shows a schematic diagram in which other signals are not allowed to be sent within the total bandwidth, and FIG9( b ) shows a schematic diagram in which other signals are allowed to be sent within the total bandwidth.

[0240] As an example, no other signals are allowed to be transmitted within the total bandwidth. A terminal device can determine a receiving bandwidth based on the total bandwidth to receive LP-SS and LP-WUS. This eliminates the need to adjust the frequency position of the receiving bandwidth, reducing terminal complexity. For example, in Figure 9(a), the terminal device can receive LP-SS and LP-WUS based on the resources enclosed by the dashed box.

[0241] As an example, other signals are allowed to be sent within the total bandwidth. The terminal device can receive LP-SS and LP-WUS with two relatively small bandwidths respectively. The unused resources can be used to transmit other signals to avoid resource waste.

[0242] Next, the frequency resource configuration of the wake-up signal and the synchronization signal is described in detail.

[0243] In a possible implementation, the access network device sends the first configuration information and the second configuration information.

[0244] As an example, the first configuration information is used to indicate the center frequency of the first frequency resource, and the second configuration information is used to indicate one of the starting frequency unit, the ending frequency unit or the bandwidth of the second frequency resource; or, the first configuration information is used to indicate the center frequency of the second frequency resource, and the second configuration information is used to indicate one of the starting frequency unit, the ending frequency unit or the bandwidth of the first frequency resource.

[0245] The first configuration information or the second configuration information is further used to indicate a difference between a center frequency point of the first frequency resource and a center frequency point of the second frequency resource.

[0246] Illustratively, the starting frequency unit or the ending frequency unit may be an RB or a RE, which is not limited in the embodiment of the present application.

[0247] The first configuration information is used to indicate the center frequency of the first frequency resource, and may include direct indication and indirect indication.

[0248] In a possible implementation, the first configuration information includes first indication information, where the first indication information is used to indicate a center frequency point of the first frequency resource.

[0249] In another possible implementation, the first configuration information includes at least two of a starting frequency unit, an ending frequency unit, or a bandwidth of the first frequency resource.

[0250] Similarly, the first configuration information is used to indicate the center frequency of the second frequency resource, which can include direct indication and indirect indication.

[0251] In a possible implementation, the first configuration information includes second indication information, where the second indication information is used to indicate a center frequency point of the second frequency resource.

[0252] In another possible implementation, the first configuration information includes at least two of a starting frequency unit, an ending frequency unit, or a bandwidth of the second frequency resource.

[0253] It can be understood that the access network device can configure two items of the starting frequency unit, the ending frequency unit or the bandwidth of a frequency resource, and the terminal device determines the center frequency based on the two items of the starting frequency unit, the ending frequency unit or the bandwidth of this frequency resource. When configuring another frequency resource, the access network device can configure one of the starting frequency unit, the ending frequency unit or the bandwidth, and the center frequency of the other frequency resource can be determined based on the difference between the two center frequencies, and another frequency resource can be determined based on the center frequency and one of the starting frequency unit, the ending frequency unit or the bandwidth.

[0254] As another example, the first configuration information is used to indicate two items of the starting frequency unit, the ending frequency unit or the bandwidth of the first frequency resource; the second configuration information is used to indicate two items of the starting frequency unit, the ending frequency unit or the bandwidth of the second frequency resource.

[0255] It can be understood that the terminal device determines the first frequency resource based on two of the starting frequency unit, the ending frequency unit or the bandwidth of the first frequency resource, and determines the second frequency resource based on two of the starting frequency unit, the ending frequency unit or the bandwidth of the second frequency resource.

[0256] It is understood that the first configuration information and the second configuration information can be configured through the same configuration information or configured through two configuration information respectively, which is not limited in the embodiment of the present application.

[0257] In a possible implementation, the access network device sends third configuration information.

[0258] The third configuration information is used to indicate a protection bandwidth of a wake-up signal and / or a protection bandwidth of a synchronization signal.

[0259] As an example, when the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same, the third configuration information can configure the protection bandwidth of one signal (one of the wake-up signal or the synchronization signal). Accordingly, the terminal device can determine the protection bandwidth of another signal (the other of the wake-up signal or the synchronization signal) based on the fact that the first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same.

[0260] In this solution, the configuration method of the third configuration information can refer to the previous description and will not be repeated here.

[0261] It should be noted that for different receivers, for example, non-I / Q non-coherent receivers and I / Q coherent receivers, the frequency resource configurations of LP-SS and LP-WUS are different.

[0262] For non-I / Q non-coherent receivers (such as the OOK receiver described above), the envelope detection receiver only needs to synchronize (for example, LP-SS) or demodulate (for example, LP-WUS) based on the ON / OFF pattern of the OOK symbols. Unused resources in the receiving resources are reserved and no other NR signals are transmitted, which does not introduce additional interference. The relative positions of LP-SS and LP-WUS are not required.

[0263] For an I / Q coherent receiver (such as the OFDM receiver described above), the relative positions of the LP-SS and LP-WUS need to be known. This allows the receiver to determine their relative positions relative to its own receiving bandwidth, thereby generating a local sequence based on these relative positions and performing correlation in the time domain.

[0264] S720: Receive a wake-up signal through a first frequency resource, and receive a synchronization signal through a second frequency resource.

[0265] In step S720, the terminal device receives a wake-up signal using a first frequency resource through a first circuit, and receives a synchronization signal using a second frequency resource through the first circuit.

[0266] Before receiving the wake-up signal and the synchronization signal, the terminal device may determine the first frequency resource and the second frequency resource.

[0267] In one possible implementation, the terminal device receives the first configuration information and the second configuration information, and determines the first frequency resource and the second frequency resource based on the first configuration information and the second configuration information. The specific determination method can be referred to the description in S710 and will not be repeated here.

[0268] Optionally, the terminal device receives third configuration information, and determines the protection bandwidth of the wake-up signal and the protection bandwidth of the synchronization signal based on the third configuration information.

[0269] As an example, the terminal device may use the same bandwidth to receive the wake-up signal and the synchronization signal.

[0270] For example, as shown in (a) in Figure 8, the center frequency points of the first frequency resource and the second frequency resource are the same. The terminal device can determine a large bandwidth to receive LP-WUS and LP-SS. For example, the bandwidth of LP-WUS can be used as the receiving bandwidth. The terminal device does not need to adjust the bandwidth based on different received signals, and the complexity of the terminal device is reduced.

[0271] For example, as shown in (a) of Figure 9, the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to the second threshold value. The terminal device can determine a large bandwidth to receive LP-SS and LP-WUS. For example, the total bandwidth can be used as the receiving bandwidth. The terminal device does not need to adjust the bandwidth based on different received signals, and the complexity of the terminal device is reduced.

[0272] As an example, the terminal device may use different bandwidths to receive the wake-up signal and the synchronization signal.

[0273] For example, as shown in (b) in Figure 8, the center frequency of the first frequency resource and the second frequency resource is the same, and the first frequency resource and the second frequency resource are different. The terminal device can receive LP-WUS based on the transmission bandwidth corresponding to the first frequency resource, and the terminal device can receive LP-SS based on the transmission bandwidth corresponding to the second frequency resource. When receiving LP-SS and LP-WUS, the terminal device needs to adjust the receiving bandwidth and the receiving frequency position based on different received signals, but the vacant position can be used to transmit other signals, which can avoid resource waste.

[0274] For example, as shown in (b) of Figure 9, the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to the second threshold value. The terminal device can receive LP-WUS based on the transmission bandwidth corresponding to the first frequency resource, and the terminal device can receive LP-SS based on the transmission bandwidth corresponding to the second frequency resource. When receiving LP-SS and LP-WUS, the terminal device needs to adjust the receiving bandwidth and the receiving frequency position based on different received signals, but the vacant position can be used to transmit other signals, which can avoid waste of resources.

[0275] In the above technical solution, the power consumption or complexity of the terminal device is controlled by defining the relative deployment positions of the frequency resources of the wake-up signal and the frequency resources of the synchronization signal.

[0276] It is understood that in various embodiments of the present application, "receiving" may be replaced by "detecting" or "reading" or "monitoring". For example, "receiving a wake-up signal" may be replaced by "detecting a wake-up signal" or "reading a wake-up signal" or "monitoring a wake-up signal".

[0277] It is also understood that in some of the above embodiments, multiple references to sending signals are made. Taking A sending a signal to B as an example, A sending a signal to B may include A sending the signal directly to B or A sending the signal to B through other devices or network elements, and there is no limitation on this.

[0278] It should also be understood that in some of the above embodiments, the terms "pre-agreed" and "pre-defined" are mentioned multiple times, and those skilled in the art should understand their meaning. "Pre-defined" refers to pre-definition by a standard protocol. "Pre-agreed" refers to pre-agreed or pre-negotiated agreements between devices. For example, a threshold (such as a first threshold or a second threshold) is pre-agreed, meaning that the threshold value is pre-agreed upon between devices (e.g., between an access network device and a terminal device).

[0279] It can also be understood that some optional features in the various embodiments of the present application may not depend on other features in certain scenarios, and may also be combined with other features in certain scenarios, without limitation.

[0280] It can also be understood that the solutions in the various embodiments of the present application can be reasonably combined and used, and the explanations or descriptions of the various terms appearing in the embodiments can be referenced or explained with each other in the various embodiments, without limitation to this.

[0281] It can also be understood that in the above-mentioned method embodiments, the methods and operations implemented by the terminal device can also be implemented by components that can be formed by the terminal device (such as chips or circuits); in addition, the methods and operations implemented by the network device can also be implemented by components that can be formed by the network device (such as chips or circuits), without limitation.

[0282] The method provided in the embodiment of the present application is described in detail above in conjunction with Figures 7 to 9. Below, the apparatus provided in the embodiment of the present application is described in detail in conjunction with Figures 10 and 11. It should be understood that the description of the apparatus embodiment corresponds to the description of the method embodiment. Therefore, for matters not described in detail, please refer to the method embodiment above. For the sake of brevity, they are not repeated here.

[0283] Referring to FIG. 10 , as an example, FIG. 10 is a schematic diagram of a communication device 1000 provided in an embodiment of the present application.

[0284] The device 1000 includes a transceiver unit 1010 and a processing unit 1020. The transceiver unit 1010 can be used to implement corresponding communication functions, and the processing unit 1020 can be used to perform data processing.

[0285] Optionally, the transceiver unit 1010 may also be referred to as a communication interface or communication unit, and may include a transmitting unit and / or a receiving unit. The transceiver unit 1010 may be a transceiver (including a transmitter and / or a receiver), an input / output interface (including an input and / or output interface), a pin, or a circuit. The transceiver unit 1010 may be configured to perform the transmitting and / or receiving steps in the above-described method embodiments.

[0286] Optionally, the processing unit 1020 may be a processor (may include one or more), a processing circuit with processor functions, etc., and may be used to execute other steps except sending and receiving in the above method embodiment.

[0287] Optionally, the apparatus 1000 further includes a storage unit, which may be a memory, an internal storage unit (e.g., a register, a cache, etc.), an external storage unit (e.g., a read-only memory, a random access memory, etc.), etc. The storage unit is used to store instructions, and the processing unit 1020 executes the instructions stored in the storage unit to enable the communication apparatus to perform the above method.

[0288] In a first possible design, the apparatus 1000 can be used to execute the actions performed by the network device (e.g., access network device) in each of the above method embodiments. For example, the apparatus 1000 can be used to execute the actions performed by the network device in the above method 700. In this case, the apparatus 1000 can be a component of the network device, the transceiver unit 1010 is used to execute the transceiver-related operations on the network device side of the above method embodiments, and the processing unit 1020 is used to execute the processing-related operations of the network device in the above method embodiments.

[0289] In one possible implementation, the transceiver unit 1010 is used to send a wake-up signal through a first frequency resource, where the wake-up signal is used to wake up at least one terminal device; the transceiver unit 1010 is also used to send a synchronization signal through a second frequency resource, where the difference between the center frequency of the first frequency resource and the center frequency of the second frequency resource is less than or equal to a first threshold, and / or the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, and the wake-up signal and the synchronization signal are modulated using on-off keying (OOK).

[0290] It should be understood that the transceiver unit 1010 and the processing unit 1020 may also perform other operations performed by the access network device in the above method 700, which will not be described in detail here.

[0291] In a second possible design, the apparatus 1000 may be used to execute the actions executed by the terminal device in each of the above method embodiments, for example, the apparatus 1000 may be used to execute the actions executed by the terminal device in the above method 700. In this case, the apparatus 1000 may be a component of the terminal device, the transceiver unit 1010 is used to execute the transceiver-related operations on the terminal device side in the above method embodiments, and the processing unit 1020 is used to execute the processing-related operations of the terminal device in the above method embodiments.

[0292] In one possible implementation, the transceiver unit 1010 is used to receive a wake-up signal through a first frequency resource, where the wake-up signal is used to wake up at least one terminal device; the transceiver unit 1010 is also used to receive a synchronization signal through a second frequency resource, where the difference between the center frequency of the first frequency resource and the center frequency of the second frequency resource is less than or equal to a first threshold, and / or the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, and the wake-up signal and the synchronization signal are modulated using on-off keying (OOK).

[0293] It should be understood that the transceiver unit 1010 and the processing unit 1020 can also perform other operations performed by the terminal device in the above method 700, which will not be described in detail here.

[0294] It should be understood that the specific process of each unit executing the above corresponding steps has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.

[0295] It should also be understood that the device 1000 here is embodied in the form of a functional unit. The term "unit" here can refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a combined logic circuit and / or other suitable components that support the described functions. In an optional example, those skilled in the art will understand that the device 1000 can be specifically the communication device in the above-mentioned embodiment, and can be used to execute the various processes and / or steps corresponding to the communication device in the above-mentioned method embodiments. To avoid repetition, they will not be described here.

[0296] The apparatus 1000 of each of the above-mentioned solutions has the function of implementing the corresponding steps performed by the communication device (such as a transmitting end device or a receiving end device) in the above-mentioned method. The functions can be implemented by hardware, or by hardware executing corresponding software implementations. The hardware or software includes one or more modules corresponding to the above-mentioned functions; for example, the transceiver unit can be replaced by a transceiver (for example, the transmitting unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor to respectively perform the transceiver operations and related processing operations in each method embodiment.

[0297] In addition, the transceiver unit 1010 may also be a transceiver circuit (for example, may include a receiving circuit and a sending circuit), and the processing unit may be a processing circuit.

[0298] It should be noted that the device in FIG10 can be a communication device (such as a terminal device or a network device) in the aforementioned embodiments, or it can be a chip or a chip system, such as a system on a chip (SoC). The transceiver unit can be an input / output circuit or a communication interface; the processing unit can be a processor, microprocessor, or integrated circuit integrated on the chip. This is not limited here.

[0299] Referring to Figure 11 , as an example, Figure 11 is a schematic diagram of a communication architecture provided in an embodiment of the present application. The communication device 1100 shown in Figure 11 includes a processor 1110 and a transceiver 1120. Optionally, the processor 1110 and the transceiver 1120 may be interconnected via a bus 1130. The communication device 1100 may be a terminal device or a network device.

[0300] Optionally, the communication device 1100 may further include a memory 1140. The memory 1140 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM), and is used to store relevant instructions and data.

[0301] The processor 1110 is coupled to the memory 1140 and is configured to execute instructions stored in the memory 1140 to control the transceiver 1120 to send signals and / or receive signals.

[0302] It should be understood that the processor 1110 and memory 1140 can be combined into a single processing device, with the processor 1110 configured to execute program code stored in the memory 1140 to implement the aforementioned functions. In a specific implementation, the memory 1140 can also be integrated into the processor 1110 or independent of the processor 1110. It should be understood that the processor 1110 can also correspond to the various processing units in the aforementioned communication device, and the transceiver 1120 can correspond to the various receiving units and transmitting units in the aforementioned communication device.

[0303] It should also be understood that the transceiver 1120 may include a receiver (or receiver) and a transmitter (or transmitter). The transceiver may further include an antenna, and the number of antennas may be one or more. The transceiver may also be a communication interface or interface circuit.

[0304] Specifically, the communication device 1100 may correspond to the access network device in method 700 according to an embodiment of the present application. The communication device 1100 may include the units of the method performed by the access network device in method 700. It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above-mentioned method embodiment and will not be repeated here for the sake of brevity.

[0305] Specifically, the communication device 1100 may correspond to the terminal device in the method 700 according to an embodiment of the present application. The communication device 1100 may include the units of the method performed by the terminal device in the method 700. It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above-mentioned method embodiment and will not be repeated here for the sake of brevity.

[0306] When the communication device 1100 is a chip, the chip includes an interface unit and a processing unit, wherein the interface unit may be an input / output circuit or a communication interface; and the processing unit may be a processor, microprocessor, or integrated circuit integrated on the chip.

[0307] During implementation, each step of the above method can be completed by an integrated logic circuit of the hardware in the processor or by instructions in the form of software. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as being executed by a hardware processor, or can be executed by a combination of hardware and software modules in the processor. The software module can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it will not be described in detail here.

[0308] It should be noted that the processor in the embodiments of the present application can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by an integrated logic circuit of the hardware in the processor or by instructions in the form of software. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0309] The present application also provides a computer-readable medium having a computer program stored thereon, which implements the functions of any of the above method embodiments when executed by a computer.

[0310] The present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0311] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0312] In the embodiments of this application, words such as "exemplary" and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the word "exemplary" is intended to present concepts in a concrete way.

[0313] It should be understood that references to "embodiments" throughout this specification mean that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present application. Therefore, various embodiments throughout this specification do not necessarily refer to the same embodiment. Furthermore, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0314] It should be understood that in the various embodiments of the present application, the size of the sequence number of each process does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application. The names of all nodes and messages in this application are merely names set by this application for the convenience of description. The names in the actual network may be different. It should not be understood that this application limits the names of various nodes and messages. On the contrary, any name with the same or similar function as the node or message used in this application is regarded as the method or equivalent replacement of this application, and is within the scope of protection of this application.

[0315] It should also be understood that in this application, "when", "if" and "if" all mean that the UE or base station will take corresponding measures under certain objective circumstances. It does not limit the time, and does not require the UE or base station to take judgment actions when implementing it, nor does it mean that there are other limitations.

[0316] Additionally, the terms "system" and "network" are often used interchangeably. The term "and / or" is simply used to describe an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone.

[0317] As used herein, the term "at least one of" or "at least one of" refers to all or any combination of the listed items. For example, "at least one of A, B, and C" can mean: A alone, B alone, C alone, A and B together, B and C together, and A, B, and C together. As used herein, "at least one" means one or more. "A plurality" means two or more.

[0318] It should be understood that in each embodiment of the present application, the terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0319] It should be understood that in various embodiments of the present application, the first, second, and various numerical numbers are merely distinctions for ease of description and are not intended to limit the scope of the embodiments of the present application.

[0320] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0321] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0322] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0323] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0324] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0325] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0326] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: include: Sending a wake-up signal through a first frequency resource, where the wake-up signal is used to wake up at least one terminal device; A synchronization signal is sent through a second frequency resource, the difference between the center frequency of the first frequency resource and the center frequency of the second frequency resource is less than or equal to a first threshold, and / or the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, and the wake-up signal and the synchronization signal are modulated using on-off keying OOK.

2. The method according to claim 1, characterized in that The total bandwidth is determined based on a minimum frequency resource index and a maximum frequency resource index, wherein the minimum frequency resource index is the index of the smallest frequency resource between the first frequency resource and the second frequency resource, and the maximum frequency resource index is the index of the largest frequency resource between the first frequency resource and the second frequency resource.

3. The method according to claim 2, characterized in that The total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, including: The bandwidth indicated by the minimum frequency resource index and the maximum frequency resource index is less than or equal to the second threshold.

4. The method according to claim 1, wherein The center frequency of the first frequency resource and the center frequency of the second frequency resource are the same, and the first threshold is 0.

5. The method according to any one of claims 1 to 4, characterized in that The first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same, wherein the first bandwidth is the sum of the bandwidth occupied by the wake-up signal and the protection bandwidth of the wake-up signal, and the second bandwidth is the sum of the bandwidth occupied by the synchronization signal and the protection bandwidth of the synchronization signal.

6. The method according to any one of claims 1 to 5, characterized in that The bandwidth occupied by the synchronization signal is smaller than the bandwidth occupied by the wake-up signal.

7. The method according to any one of claims 1 to 6, characterized in that The method further comprises: Sending first configuration information and second configuration information, The first configuration information is used to indicate the center frequency of the first frequency resource, and the second configuration information is used to indicate one of the starting frequency unit, the ending frequency unit or the bandwidth of the second frequency resource; or, the first configuration information is used to indicate the center frequency of the second frequency resource, and the second configuration information is used to indicate one of the starting frequency unit, the ending frequency unit or the bandwidth of the first frequency resource.

8. The method according to claim 7, characterized in that The total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, and the method further includes: The first configuration information or the second configuration information is further used to indicate a difference between a center frequency point of the first frequency resource and a center frequency point of the second frequency resource.

9. The method according to any one of claims 1 to 8, characterized in that The method further comprises: Third configuration information is sent, where the third configuration information is used to indicate a protection bandwidth of the wake-up signal or a protection bandwidth of the synchronization signal.

10. The method according to any one of claims 1 to 9, characterized in that The wake-up signal is a low power wake-up signal LP-WUS, and the synchronization signal is a low power synchronization signal LP-SS.

11. A communication method, characterized in that: include: receiving a wake-up signal through a first frequency resource, where the wake-up signal is used to wake up at least one terminal device; A synchronization signal is received through a second frequency resource, the difference between the center frequency of the first frequency resource and the center frequency of the second frequency resource is less than or equal to a first threshold, and / or the total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, and the wake-up signal and the synchronization signal are modulated using on-off keying OOK.

12. The method according to claim 11, characterized in that The total bandwidth is determined based on a minimum frequency resource index and a maximum frequency resource index, wherein the minimum frequency resource index is the index of the smallest frequency resource between the first frequency resource and the second frequency resource, and the maximum frequency resource index is the index of the largest frequency resource between the first frequency resource and the second frequency resource.

13. The method according to claim 2, characterized in that The total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, including: The bandwidth indicated by the minimum frequency resource index and the maximum frequency resource index is less than or equal to the second threshold.

14. The method according to claim 10, characterized in that The center frequency of the first frequency resource and the center frequency of the second frequency resource are the same, and the first threshold is 0.

15. The method according to any one of claims 11 to 14, characterized in that The first bandwidth corresponding to the wake-up signal and the second bandwidth corresponding to the synchronization signal are the same, wherein the first bandwidth is the sum of the bandwidth occupied by the wake-up signal and the protection bandwidth of the wake-up signal, and the second bandwidth is the sum of the bandwidth occupied by the synchronization signal and the protection bandwidth of the synchronization signal.

16. The method according to any one of claims 11 to 15, characterized in that The bandwidth occupied by the synchronization signal is smaller than the bandwidth occupied by the wake-up signal.

17. The method according to any one of claims 11 to 16, characterized in that The method further comprises: Receive first configuration information and second configuration information, where the first configuration information is used to indicate the center frequency of the frequency resource for sending the wake-up signal, and the second configuration information is used to indicate one of the starting frequency domain unit, the ending frequency unit, or the bandwidth of the frequency resource for sending the synchronization signal; or, the first configuration information is used to indicate the center frequency of the frequency resource for sending the synchronization signal, and the second configuration information is used to indicate one of the starting frequency domain unit, the ending frequency unit, or the bandwidth of the frequency resource for sending the wake-up signal; The first frequency resource and the second frequency resource are determined according to the first configuration information and the second configuration information.

18. The method according to claim 17, characterized in that The total bandwidth of the first frequency resource and the second frequency resource is less than or equal to a second threshold, The first configuration information or the second configuration information is further used to indicate a difference between a center frequency point of the first frequency resource and a center frequency point of the second frequency resource.

19. The method according to any one of claims 11 to 18, characterized in that The method further comprises: receiving third configuration information; A guard bandwidth of the wake-up signal and a guard bandwidth of the synchronization signal are determined according to the third configuration information.

20. The method according to any one of claims 11 to 19, characterized in that The wake-up signal is a low power wake-up signal LP-WUS, and the synchronization signal is a low power synchronization signal LP-SS.

21. A communication device, characterized in that: The method comprises modules or units for executing the method according to any one of claims 1 to 20.

22. A communication device, characterized in that: The method comprises a processor configured to execute the method according to any one of claims 1 to 20.

23. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program or instructions, and when the computer program or instructions are executed on a communication device, the communication device is caused to perform the method according to any one of claims 1 to 20.

24. A computer program product, characterized in that The computer program product comprises a computer program or instructions for performing the method according to any one of claims 1 to 20.

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