Method for determining bearing mode of overlaid sequence, and related apparatus

Abstract

The present application provides a method for determining the bearing mode of an overlaid sequence, and a related apparatus, relating to the technical field of communications. The method may be applied to a network device. The method comprises: a network device first configures first information of a low power wake-up signal (LPWUS), the first information being used for indicating a parameter of the LPWUS; then, the network device sends the first information to a terminal; next, the network device determines the bearing mode of an overlaid sequence on the basis of the first information; and finally, the network device sends a first signal to the terminal, the first signal being generated on the basis of said bearing mode. In this way, the network device can flexibly determine the bearing mode of an overlaid sequence on the basis of the first information. Compared to the use of fixed bearing modes of overlaid sequences in the related art, the present invention increases the flexibility with which the bearing mode is determined.

Description

Method for determining superimposed sequence carrying mode and related device The present application claims priority to the Chinese patent application No. 202411378035.9, filed on September 29, 2024, and entitled "Method for determining superimposed sequence carrying mode and related device". TECHNICAL FIELD The present application relates to the field of communication technology, and in particular to a method for determining superimposed sequence carrying mode and related device. BACKGROUND In order to reduce power consumption, a terminal usually adopts a low-power wake-up mechanism. The terminal includes a main communication unit and a wake-up receiver unit, and the power consumption of the main communication unit is much greater than that of the wake-up receiver unit. Under the low-power wake-up mechanism, the terminal usually turns off the main communication unit, and the wake-up receiver unit continuously detects a low-power wake-up signal (LPWUS). In the case where the network side (also referred to as a network device) needs to establish a communication connection with the terminal for service transmission and reception, the network side can send an LPWUS to the terminal. After the wake-up receiver unit detects a valid LPWUS, the main communication unit can be triggered to start, and the communication connection between the terminal and the network side is realized through the main communication unit, and then the service transmission and reception are completed. In the related art, the network side can send an LPWUS modulated based on an overlaid sequence (referred to as an overlaid sequence) to the terminal. The overlaid sequence can not carry information bits of the LPWUS, the overlaid sequence can carry part of the information bits of the LPWUS, and the overlaid sequence can also carry all the information bits of the LPWUS. However, in the case where the number of information bits of the LPWUS is configurable, a fixed overlaid sequence carrying mode is usually adopted. SUMMARY In order to solve the above problems, the present application provides a method for determining superimposed sequence carrying mode and related device, which aims to flexibly select an overlaid sequence carrying mode. In a first aspect, a method for determining a superposition sequence carrying manner is provided. The method can be applied to a network device, such as a base station or the like. In the method, the network device can configure first information of a low power wake-up signal (LPWUS). The first information can be used to indicate parameters of the LPWUS. For example, the first information can include one or more of a number of information bits of the LPWUS, a number of OFDM symbols carrying modulation symbols, and a number of high levels in a first signal. The network device can send the first information to a terminal. Then, based on the first information, the network device can determine a superposition sequence carrying manner. For example, the superposition sequence carrying manner can include that the superposition sequence does not carry information bits of the LPWUS, the superposition sequence carries part of the information bits of the LPWUS, or the superposition sequence carries all of the information bits of the LPWUS. Subsequently, the network device can send the first signal to the terminal. The first signal is generated based on the superposition sequence carrying manner. The network device can generate the first signal based on the determined superposition sequence carrying manner. In this way, the network device can determine the superposition sequence carrying manner based on the first information. This indicates that the network device can flexibly determine the superposition sequence carrying manner based on the first information. Compared with the related art in which a fixed superposition sequence carrying manner is used, the method for determining the superposition sequence carrying manner provided in this application is more flexible in terms of the superposition sequence carrying manner used. In a possible implementation, the first information of the LPWUS can include a number of information bits of the LPWUS. For example, the network device can configure the number of information bits of the LPWUS to be 4 or 8. In this way, the network device can determine the superposition sequence carrying manner based on the number of information bits of the LPWUS, which is more flexible. In a possible implementation, the network device configures the number of information bits of the LPWUS to be less than or equal to a first threshold. For example, the first threshold can be 2, and the network device configures the number of information bits of the LPWUS to be 2. The first signal can be generated based on a first sequence or a random number. The first sequence does not carry information bits of the LPWUS. This indicates that the superposition sequence carrying manner determined by the network device based on the number of information bits of the LPWUS is that the sequence does not carry information bits of the LPWUS. For example, the first signal generated by the network device can be modulated based on the first sequence that does not carry information bits of the LPWUS or a random number. In this way, in the case where the number of information bits of the LPWUS is small, the terminal can receive the complete first signal more quickly. The terminal can demodulate the high and low levels of the first signal, which can avoid affecting the demodulation speed of the terminal for the first signal and does not need to demodulate the first sequence, thereby reducing the occupation of computing resources. In a possible implementation, the number of information bits of the LPWUS configured by the network device is greater than the first threshold and less than or equal to the second threshold. Exemplarily, the first threshold can be 2, and the second threshold can be 4. The number of information bits of the LPWUS configured by the network device is 3. The first signal can be generated based on a second sequence that carries all the information bits of the LPWUS. This indicates that the superposition sequence carrying manner determined by the network device based on the number of information bits of the LPWUS is that a sequence carries all the information bits of the LPWUS. For example, the first signal generated by the network device can be modulated based on the second sequence that carries all the information bits of the LPWUS. In this way, in the case that the number of information bits of the LPWUS is moderate, it takes a long time for the terminal to receive the complete first signal. The superposition sequence carrying manner that the second sequence carries all the information bits of the LPWUS facilitates the terminal to restore the complete information bits by demodulating the second sequence in the case that the complete first signal is not received, and improves the demodulation speed of the terminal for the first signal. In a possible implementation, the number of information bits of the LPWUS configured by the network device is greater than the second threshold. Exemplarily, the second threshold can be 4. The number of information bits of the LPWUS configured by the network device is 6. The first signal can be generated based on a third sequence that carries part of the information bits of the LPWUS. This indicates that the superposition sequence carrying manner determined by the network device based on the number of information bits of the LPWUS is that a sequence carries part of the information bits of the LPWUS. For example, the first signal generated by the network device can be modulated based on the third sequence that carries part of the information bits of the LPWUS. In this way, in the case that the number of information bits of the LPWUS is large, on the one hand, the problem that the terminal needs to wait for the complete first signal to restore the information bits can be avoided because the third sequence does not carry the information bits of the LPWUS, the waiting time of the terminal is reduced, and the demodulation speed of the terminal for the first signal is improved. On the other hand, the problem that the third sequence is complex can be avoided because the third sequence carries all the information bits of the LPWUS, the demodulation speed and accuracy of the terminal for the first signal are improved. In a possible implementation, the first information of the LPWUS includes the number of orthogonal frequency division multiplexing (OFDM) symbols carrying modulation symbols, and the first signal includes the modulation symbols. Exemplarily, the first signal includes ON symbols and OFF symbols. The network device can configure the number of OFDM symbols carrying modulation symbols to be 1, 2, 4, or more. In this way, the network device can determine the superposition sequence carrying manner based on the number of OFDM symbols carrying modulation symbols, which is more flexible. In a possible implementation, the number of modulation symbols carried by the OFDM symbol configured by the network device is less than or equal to a third threshold, and the first signal can be generated based on a fourth sequence carrying partial information bits of the LPWUS, indicating that the superposition sequence carrying manner determined by the network device based on the number of modulation symbols carried by the OFDM symbol is that the sequence carries the partial information bits of the LPWUS. For example, the first signal generated by the network device can be modulated based on the fourth sequence carrying the partial information bits of the LPWUS. In this way, the length of one OFDM symbol is fixed, and the duration is fixed. In the case of carrying fewer modulation symbols in one OFDM symbol, it indicates that the transmission speed of the first signal is slower. The first signal is modulated by the fourth sequence carrying partial information bits, which can enable the terminal to obtain the information bits of the LPWUS without waiting for a long time, and can improve the demodulation speed of the terminal for the LPWUS. In a possible implementation, the number of modulation symbols carried by the OFDM symbol configured by the network device is greater than the third threshold and less than or equal to a fourth threshold, and the first signal can be generated based on a fifth sequence carrying all information bits of the LPWUS, indicating that the superposition sequence carrying manner determined by the network device based on the number of modulation symbols carried by the OFDM symbol is that the sequence carries all information bits of the LPWUS. For example, the first signal generated by the network device can be modulated based on the fifth sequence carrying all information bits of the LPWUS. In this way, in the case of carrying a moderate number of modulation symbols in one OFDM symbol, it indicates that the transmission speed of the first signal is moderate. The first signal is modulated by the fifth sequence carrying all information bits, so that the terminal can obtain the fifth sequence as soon as possible to demodulate the information bits of the LPWUS, and the terminal does not need to wait for a long time, which can improve the demodulation speed of the terminal for the LPWUS. In a possible implementation, the number of modulation symbols carried by the OFDM symbol configured by the network device is greater than the fourth threshold, and the first signal can be generated based on a sixth sequence not carrying information bits of the LPWUS, indicating that the superposition sequence carrying manner determined by the network device based on the number of modulation symbols carried by the OFDM symbol is that the sequence does not carry the information bits of the LPWUS. For example, the first signal generated by the network device can be modulated based on the sixth sequence not carrying the information bits of the LPWUS. In this way, in the case that a large number of modulation signals are carried by one OFDM symbol, it is indicated that the first signal has a faster transmission speed, the first signal is modulated by using the sixth sequence which does not carry the information bits of the LPWUS, and the terminal can receive the complete OOK modulated signal without waiting for a long time, and then can demodulate the information bits of the LPWUS, thereby improving the demodulation speed of the terminal for the LPWUS. In a possible implementation, the first information of the LPWUS can include the number of information bits of the LPWUS and the number of OFDM symbols carrying modulation symbols. For example, the network device can configure the number of information bits of the LPWUS as 4 or 8, and configure the number of OFDM symbols carrying modulation symbols as 1 or 2. In this way, the network device can comprehensively consider the number of information bits of the LPWUS and the number of OFDM symbols carrying modulation symbols to determine the superposition sequence carrying mode, thereby further improving the flexibility of determining the superposition sequence carrying mode. In a possible implementation, the network device configures the number of information bits of the LPWUS to be less than or equal to a first threshold, for example, the first threshold can be 2, and the network device configures the number of information bits of the LPWUS to be 2; the network device configures the number of OFDM symbols carrying modulation symbols to be less than or equal to a third threshold, for example, the third threshold can be 1, and the network device configures the number of OFDM symbols carrying modulation symbols to be 1; the first signal can be generated based on a seventh sequence or a random number, the seventh sequence does not carry the information bits of the LPWUS, and it is indicated that the superposition sequence carrying mode determined by the network device based on the two is that the sequence does not carry the information bits of the LPWUS. In this way, in the case that the number of information bits of the LPWUS is small and the transmission speed of the first signal is slow, the terminal can also receive the complete first signal faster, the terminal can demodulate the information bits of the LPWUS without waiting for a long time, thereby avoiding affecting the demodulation speed of the terminal for the LPWUS, and without demodulating the seventh sequence, the occupation of the computing resources can be reduced. In a possible implementation, the network device configures the number of information bits of the LPWUS to be greater than a first threshold and less than or equal to a second threshold, for example, the first threshold can be 2, and the second threshold can be 6, and the network device configures the number of information bits of the LPWUS to be 4; the network device configures the number of OFDM symbols carrying modulation symbols to be greater than a third threshold and less than or equal to a fourth threshold, for example, the third threshold can be 1, and the fourth threshold can be 4, and the network device configures the number of OFDM symbols carrying modulation symbols to be 4; the first signal can be generated based on an eighth sequence or a random number, the eighth sequence does not carry the information bits of the LPWUS, and it is indicated that the superposition sequence carrying mode determined by the network device based on the two is that the sequence does not carry the information bits of the LPWUS. In this way, in the case that the number of information bits of the LPWUS is moderate and the transmission speed of the first signal is moderate, it is indicated that the terminal can receive the complete first signal quickly, and thus the terminal can wait for the complete first signal to demodulate the information bits of the LPWUS, so as to avoid affecting the demodulation speed of the terminal for the LPWUS, and without the need to demodulate the eighth sequence, the occupation of the computing resources can be reduced. In a possible implementation, the number of information bits of the LPWUS configured by the network device is greater than a second threshold, for example, the second threshold can be 6, and the number of information bits of the LPWUS configured by the network device is 8; the number of modulation symbols carried by the OFDM symbol configured by the network device is greater than a fourth threshold, for example, the fourth threshold can be 4, and the number of modulation symbols carried by the OFDM symbol configured by the network device is 6; the first signal can be generated based on a ninth sequence, and the ninth sequence carries part of the information bits of the LPWUS, which indicates that the superposition sequence determined by the network device based on the two carries the part of the information bits of the LPWUS. In this way, in the case that the number of information bits of the LPWUS is large, the superposition sequence carrying manner can avoid the terminal waiting for the complete first signal for too long, avoid affecting the demodulation speed of the terminal for the first signal, and avoid the terminal demodulating a more complex sequence carrying all the information bits, but demodulating the ninth sequence carrying part of the information bits, so as to ensure the demodulation accuracy of the terminal for the LPWUS. In a possible implementation, in the case that the first information of the LPWUS includes the number of information bits of the LPWUS, the determination method of the superposition sequence carrying manner can further include: determining the number of high levels in the first signal based on the number of information bits of the LPWUS, and the number of high levels is the number of ON symbols in the first signal. For example, the information bits of the LPWUS can be encoded into a digital signal by using a Manchester coding manner, in which case, the number of information bits of the LPWUS is the same as the number of high levels in the first signal, or other coding manners can be used, so that the number of high levels in the first signal is related to the number of information bits of the LPWUS. In this way, the network device can determine the superposition sequence carrying manner based on the number of high levels in the first signal, which is more flexible. In a possible implementation, the first information of the LPWUS can include the number of high levels in the first signal. For example, after the network device encodes the information bits of the LPWUS into a digital signal, the number of high levels in the first signal can be determined based on the number of high levels in the digital signal. In this way, the network device can determine the superposition sequence carrying manner based on the number of high levels in the first signal, which is more flexible. In a possible implementation, the number of high levels in the first signal is less than or equal to a fifth threshold value, and the fifth threshold value can be 4 for example, and the number of high levels in the first signal is 2, and the first signal can be generated based on a tenth sequence or a random number, the tenth sequence not carrying information bits of the LPWUS, indicating that the superposition sequence carrying manner determined by the network device based on the number of high levels in the first signal is that the sequence does not carry information bits of the LPWUS, for example, the first signal generated by the network device can be modulated based on the tenth sequence not carrying information bits of the LPWUS or a random number. In this way, in the case that the number of high levels in the first signal is small, it is indicated that the terminal can receive the complete first signal quickly, the terminal can demodulate the high and low levels of the first signal, the demodulation speed of the terminal for the first signal can be avoided from being affected, and the occupation of the computing resources can be reduced without demodulating the tenth sequence. In a possible implementation, the number of high levels in the first signal is greater than the fifth threshold value and less than or equal to a sixth threshold value, and the fifth threshold value can be 4 for example, and the sixth threshold value can be 8, and the number of high levels in the first signal is 6, and the first signal can be generated based on an eleventh sequence, the eleventh sequence carrying all information bits of the LPWUS, indicating that the superposition sequence carrying manner determined by the network device based on the number of high levels in the first signal is that the sequence carries all information bits of the LPWUS, for example, the first signal generated by the network device can be modulated based on the eleventh sequence carrying all information bits of the LPWUS. In this way, in the case that the number of high levels in the first signal is moderate, it is indicated that the terminal may need a long time to receive the complete first signal, and the eleventh sequence carrying all information bits of the LPWUS is used as the superposition sequence carrying manner, so that the terminal can demodulate the eleventh sequence to restore the complete information bits without receiving the complete first signal, and the demodulation speed of the terminal for the first signal can be improved. In a possible implementation, the number of high levels in the first signal is greater than the sixth threshold value, and the sixth threshold value can be 8 for example, and the number of high levels in the first signal is 10, and the first signal can be generated based on a twelfth sequence, the twelfth sequence carrying part of information bits of the LPWUS, indicating that the superposition sequence carrying manner determined by the network device based on the number of high levels in the first signal is that the sequence carries part of information bits of the LPWUS, for example, the first signal generated by the network device can be modulated based on the twelfth sequence carrying part of information bits of the LPWUS. In this way, in the case that the number of high levels in the first signal is large, on the one hand, the problem that the terminal needs to wait for the complete first signal to restore the information bits can be avoided, the waiting time of the terminal can be reduced, and the demodulation speed of the terminal for the first signal can be improved; on the other hand, the problem that the twelfth sequence is relatively complex due to carrying all the information bits of the LPWUS can be avoided, and the demodulation speed and accuracy of the terminal for the first signal can be improved. In a possible implementation, the first threshold and the second threshold described above can be configured for the network device, or the first threshold and the second threshold can be predefined. In this way, the first threshold and the second threshold are configured for the network device, and the configuration flexibility of the first threshold and the second threshold is higher; the first threshold and the second threshold are predefined, so that the determination of the superposition sequence carrying mode is more convenient. In a possible implementation, the third threshold and the fourth threshold described above can be configured for the network device, or the third threshold and the fourth threshold can be predefined. In this way, the third threshold and the fourth threshold are configured for the network device, and the configuration flexibility of the third threshold and the fourth threshold is higher; the third threshold and the fourth threshold are predefined, so that the determination of the superposition sequence carrying mode is more convenient. In a possible implementation, the fifth threshold and the sixth threshold described above can be configured for the network device, or the fifth threshold and the sixth threshold can be predefined. In this way, the fifth threshold and the sixth threshold are configured for the network device, and the configuration flexibility of the fifth threshold and the sixth threshold is higher; the fifth threshold and the sixth threshold are predefined, so that the determination of the superposition sequence carrying mode is more convenient. In a possible implementation, the fifth threshold and the sixth threshold described above can be configured for the network device, or the fifth threshold and the sixth threshold can be predefined. In this way, the fifth threshold and the sixth threshold are configured for the network device, and the configuration flexibility of the fifth threshold and the sixth threshold is higher; the fifth threshold and the sixth threshold are predefined, so that the determination of the superposition sequence carrying mode is more convenient. In this way, the network device can determine the superposition sequence carrying mode based on the first information, and the terminal can also determine the superposition sequence carrying mode based on the first information, so that the superposition sequence carrying mode can be flexibly determined, and the terminal can accurately demodulate the first signal. In a possible implementation, the first information of the LPWUS includes a number of information bits of the LPWUS, and determining the superposition sequence carrying manner based on the first information can include: determining the superposition sequence carrying manner based on the number of information bits of the LPWUS, the first threshold, and the second threshold. In this way, the network device can determine the superposition sequence carrying manner based on the size of the number of information bits of the LPWUS, which is more flexible. In a possible implementation, the first information of the LPWUS includes a number of OFDM symbols carrying modulation symbols, and determining the superposition sequence carrying manner based on the first information can include: determining the superposition sequence carrying manner based on the number of OFDM symbols carrying modulation symbols, the third threshold, and the fourth threshold. In this way, the network device can determine the superposition sequence carrying manner based on the size of the number of OFDM symbols carrying modulation symbols, which is more flexible. In a possible implementation, the first information of the LPWUS includes a number of information bits of the LPWUS and a number of OFDM symbols carrying modulation symbols, and determining the superposition sequence carrying manner based on the first information can include: determining the superposition sequence carrying manner based on the number of information bits of the LPWUS, the number of OFDM symbols carrying modulation symbols, the first threshold, the second threshold, the third threshold, and the fourth threshold. In this way, the network device can determine the superposition sequence carrying manner by comprehensively considering the size of the number of information bits of the LPWUS and the size of the number of OFDM symbols carrying modulation symbols, which further improves the flexibility of determining the superposition sequence carrying manner. In a possible implementation, the first information of the LPWUS includes a number of high levels in the first signal, and determining the superposition sequence carrying manner based on the first information can include: determining the superposition sequence carrying manner based on the number of high levels in the first signal, the fifth threshold, and the sixth threshold. In this way, the network device can determine the superposition sequence carrying manner based on the size of the number of high levels in the first signal, which is more flexible. In a possible implementation, the first threshold and the second threshold described above can be configured for the network device and sent to the terminal, or the first threshold and the second threshold can be predefined. In this way, the first threshold and the second threshold are configured for the network device, and the configuration flexibility of the first threshold and the second threshold is higher; the first threshold and the second threshold are predefined, which makes the determination of the superposition sequence carrying manner more convenient. In a possible implementation, the third threshold and the fourth threshold described above can be configured for the network device and sent to the terminal, or the third threshold and the fourth threshold can be predefined. In this way, the third threshold and the fourth threshold are configured for the network device, and the configuration flexibility of the third threshold and the fourth threshold is higher; the third threshold and the fourth threshold are predefined, which makes the determination of the superposition sequence carrying manner more convenient. In a possible implementation, the fifth threshold value and the sixth threshold value described above can be configured by the network device and sent to the terminal, or the fifth threshold value and the sixth threshold value can be predefined. In this way, when the fifth threshold value and the sixth threshold value are configured by the network device, the configuration flexibility of the fifth threshold value and the sixth threshold value is higher; and when the fifth threshold value and the sixth threshold value are predefined, the determination of the superposition sequence carrying mode is more convenient. In a third aspect, the present application provides a superposition sequence carrying mode determination system, which can include a network device and a terminal; the network device is configured to configure first information of an LPWUS, the first information being used to indicate parameters of the LPWUS; then, the network device is configured to send the first information to the terminal; the terminal is configured to receive the first information sent by the network device; subsequently, the network device is configured to determine a superposition sequence carrying mode based on the first information; the terminal is configured to determine the superposition sequence carrying mode based on the first information; finally, the network device is configured to send a first signal to the terminal, the first signal being generated based on the superposition sequence carrying mode; and the terminal is configured to receive the first signal sent by the network device. In a fourth aspect, the present application provides a communication device, which includes a processing unit and a transceiver unit, and is configured to perform the superposition sequence carrying mode determination method of the first aspect to the second aspect. In a fifth aspect, the present application provides a communication device, which includes a processor and a memory, the memory being configured to store a program or an instruction for performing the superposition sequence carrying mode determination method of the first aspect to the second aspect. In a sixth aspect, the present application provides a computer readable storage medium, which stores a computer program or an instruction, and the computer program or the instruction is configured to perform the superposition sequence carrying mode determination method of the first aspect to the second aspect when executed. In a seventh aspect, the present application provides a communication system, which includes the communication device of the fourth aspect. In an eighth aspect, the present application provides a computer program product, which includes a computer program, and the computer program is configured to perform the superposition sequence carrying mode determination method of the first aspect to the second aspect when executed. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a structural schematic diagram of a communication system provided by an embodiment of the present application; FIG. 2a is a schematic diagram of an OOK modulated signal provided by an embodiment of the present application; FIG. 2b is a schematic diagram of an OFDM symbol modulated by an OOK-1 modulation mode provided by an embodiment of the present application; FIG. 2c is a schematic diagram of an OFDM symbol modulated by an OOK-4 modulation mode provided by an embodiment of the present application; FIG. 3 is a signaling interaction diagram of a method for determining a superposition sequence carrying mode according to an embodiment of the present application; FIG. 4 is a schematic diagram of a transmitted OOK modulated signal according to an embodiment of the present application; FIG. 5 is a schematic diagram of an OFDM symbol according to an embodiment of the present application; FIG. 6 is a signaling interaction diagram of another method for determining a superposition sequence carrying mode according to an embodiment of the present application; FIG. 7 is a schematic diagram of another transmitted OOK modulated signal according to an embodiment of the present application; FIG. 8 is a signaling interaction diagram of yet another method for determining a superposition sequence carrying mode according to an embodiment of the present application; FIG. 9 is a signaling interaction diagram of still another method for determining a superposition sequence carrying mode according to an embodiment of the present application. DETAILED DESCRIPTION The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. The embodiments of the present application can be applied to a communication system, which can be a second generation (2G) communication system, a third generation (3G) communication system, a long term evolution (LTE) system, a fifth generation (5G) communication system, a hybrid architecture of LTE and 5G, a 5G New Radio (5G NR) system, and a new communication system in future communication development, etc. In the embodiments of the present application, an example of a communication system can be as shown in FIG. 1, which includes a base station 101 and a terminal 102. In embodiments provided in the present application, the base station can be any kind of device with wireless transceiver function, including but not limited to: an evolved Node B (eNB or e-NodeB) in an LTE system, a base station (gNodeB or gNB) or a transmission receiving point (TRP) in a new radio (NR) system, a base station in a subsequent evolution of 3GPP, an access node in a Wi-Fi system, a wireless relay node, a wireless backhaul node, etc. The base station can be: a macro base station, a micro base station, a pico base station, a micro station, a relay station, or a balloon station, etc. The base station can include one or more co-sited or non-co-sited transmission reception points (TRPs). The base station can also be a radio controller in a cloud radio access network (CRAN) scenario, a centralized unit (CU), and / or a distributed unit (DU). The base station can communicate with the terminal, or communicate with the terminal through a relay station. The terminal can communicate with multiple base stations of different technologies, for example, the terminal can communicate with a base station supporting an LTE network, and can also communicate with a base station supporting a 5G network, and can also communicate with a base station supporting an LTE network and a base station supporting a 5G network in dual connectivity. In the embodiments provided in the present application, the terminal can be various forms, for example, a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a vehicle-mounted terminal, a wireless terminal in self driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a wearable terminal, and the like. The terminal can also be referred to as a terminal device, a user equipment (UE), an access terminal, a vehicle-mounted terminal, an industrial control terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a UE terminal, a terminal, a wireless communication device, a UE agent, or a UE apparatus, and the like. The terminal can also be a fixed terminal or a mobile terminal. It should be noted that the communication system shown in FIG. 1 is only an example, and in actual application, the communication system can include a larger number or more types of devices. The specific architecture of the communication system is not limited in the present application. In actual application, the network side can first encode the information bits (hereinafter can be referred to as information bits) of the LPWUS into a digital signal, and then modulate the digital signal into an OOK modulated signal through an on-off keying (OOK) modulation mode. On this basis, the network side can also introduce an overlaid sequence for modulation to obtain the final transmission signal sent to the terminal. In the case that the overlaid sequence carries all the information bits of the LPWUS, the terminal can only demodulate the overlaid sequence to restore the information bits of the LPWUS, or can only demodulate the OOK modulated signal to restore the information bits of the LPWUS; in the case that the overlaid sequence carries part of the information bits of the LPWUS, the terminal can demodulate the overlaid sequence and the OOK modulated signal to restore the information bits of the LPWUS; in the case that the overlaid sequence does not carry the information bits of the LPWUS, the terminal can demodulate the OOK modulated signal to restore the information bits of the LPWUS. However, the network side usually adopts a fixed overlaid sequence bearing mode, for example, the number of information bits of the LPWUS is configurable and not fixed, and the fixed overlaid sequence bearing mode is adopted in the case, and the selection of the overlaid sequence bearing mode is not flexible. Based on the above problems, the application provides a determination method of an overlaid sequence bearing mode, aiming to flexibly select the overlaid sequence bearing mode. In the method, the number of information bits of the LPWUS, the modulation mode of the LPWUS, or the number of ON symbols in the OOK modulated signal can be considered to flexibly select the overlaid sequence bearing mode. Firstly, the process of converting the information bits of the LPWUS into the OOK modulated signal is introduced. Taking the bitmap indicating subgroups as an example, each information bit of the LPWUS can correspond to one subgroup, and one subgroup can include one or more terminals. The value of the information bit is 1, indicating the corresponding subgroup, and the terminals included in the subgroup will be woken up. The value of the information bit is 0, indicating that the corresponding subgroup is not indicated, and the terminals included in the subgroup will not be woken up. Assuming that the network side needs to wake up four terminals, one subgroup can include two terminals, and there will be two subgroups, subgroup 1 includes terminal 1 and terminal 2, and subgroup 2 includes terminal 3 and terminal 4. The number of information bits of the LPWUS can be 2, including bit1-bit2, and the values of bit1-bit2 are

[0011] , indicating that terminals 1 to 4 will be woken up. Taking the codepoint indicating subgroups as an example, one codepoint corresponds to one subgroup. Assuming that the network side needs to wake up four terminals, one subgroup can include two terminals, and there will be two subgroups, subgroup 1 includes terminal 1 and terminal 2, and subgroup 2 includes terminal 3 and terminal 4. The number of information bits of the LPWUS can be 1, and the value of bit1 is 0, indicating that subgroup 1 includes terminal 1 and terminal 2, and terminal 1 and terminal 2 will be woken up. The value of bit1 is 1, indicating that subgroup 2 includes terminal 3 and terminal 4, and terminal 3 and terminal 4 will be woken up. It should be noted that the following embodiments can take the bitmap as an example to introduce the determination method of the overlaid sequence bearing mode provided by the embodiments of the application, and the application does not limit this. The network side can encode the information bits of the LPWUS to obtain a digital signal. Taking Manchester encoding as an example, Manchester encoding will encode the value 1 as one high-to-low level jump, and will encode 0 as one low-to-high level jump. 1 can represent a high level, and 0 can represent a low level. Assuming that the value of the information bit is

[0011] , it can be encoded as

[1010] . It should be noted that the Manchester coding is used to encode the information bits of the LPWUS only as an example, and other encoding methods such as pulse interval encoding (PIE) can also be used, which is not limited in the present application. Subsequently, the network side can modulate the digital signal to obtain an analog signal. Taking the OOK modulation method as an example, the digital signal can be modulated to an orthogonal frequency division multiplexing (OFDM) waveform through the OOK modulation method to obtain an OOK modulated signal (also referred to as an OOK modulated carrier signal). Finally, the network side sends the OOK modulated signal to the terminal. The OOK modulated signal is shown in FIG. 2a. The OOK modulated signal includes modulation symbols: ON symbol and OFF symbol. The ON symbol (OOK = 1) in the OOK modulated signal represents a high level, carrying 1 in the digital signal. The OFF symbol (OOK = 0) in the OOK modulated signal represents a low level, carrying 0 in the digital signal. The OOK modulated signal shown in FIG. 2a contains the following digital signal:

[1010] that is, contains the following information bits:

[0011] . On this basis, in order to make the spectrum of the OOK modulated signal more flat when it is sent, an overlaid sequence can be introduced to modulate the digital signal to generate the final OOK modulated signal (also referred to as the first signal) to be sent to the terminal. In some embodiments, the overlaid sequence can be a pseudo-random sequence such as a Gold sequence, an M sequence, and the like. The overlaid sequence can also be other sequences such as a ZC sequence, which is not limited in the present application. The overlaid sequence has the following two modulation methods, including OOK-1 modulation method and OOK-4 modulation method. OOK-1 modulation method: as shown in FIG. 2b, FIG. 2b describes an OFDM symbol modulated by the OOK-1 modulation method from the perspective of the frequency domain. One OFDM symbol contains only one bit of the digital signal. One OFDM symbol carries one modulation symbol, for example, carries one ON symbol or carries one OFF symbol. It can also be referred to as the length of one modulation symbol (the length of one chip) being equal to the length of one OFDM symbol. As shown in FIG. 2b, first, the network side device modulates subcarriers based on the digital signal to be transmitted, subcarrier 1, that is, OOK = 1, indicates that the overlaid sequence is modulated on the subcarrier; subcarrier 0, that is, OOK = 0, all subcarriers are zero power consumption. Through inverse fast fourier transform (IFFT) and adding cyclic prefix (CP), a modulated OFDM symbol is obtained. The ON symbol (also referred to as high level) in the OOK modulated signal finally transmitted by the network side to the terminal is obtained based on the overlaid sequence modulation. The OOK-4 modulation mode is as follows: as shown in FIG. 2c, FIG. 2c describes an OFDM symbol after OOK-4 modulation from the perspective of time domain, and M-bit OOK is transformed in time domain. The chip number M of FIG. 2c is 4, that is, one OFDM symbol carries four modulation symbols, including two ON symbols and two OFF symbols, and the length of four modulation symbols (referring to the length of four chips) is equal to the length of one OFDM symbol. As shown in FIG. 2c, the network side can multiply the overlaid sequence and the bits of the digital signal in the time domain, or multiply the overlaid sequence and the sampling signal of the digital signal to generate a signal. After the signal is generated, the network side can modify the signal or not. The network side can generate N subcarrier information in the frequency domain through discrete fourier transform (DFT) or least square transform. M-bit OOK also generates N' samples. If the network side does not truncate or make other additional modifications to the signal, then N' = N. The ON symbol (also referred to as high level) in the OOK modulated signal finally transmitted by the network side to the terminal is obtained based on the overlaid sequence modulation. It should be noted that M = 4 in FIG. 2c is only an example, and M can also be 1, 2, 4, 8, etc. Next, the way in which the overlaid sequence carries information bits is introduced. The overlaid sequence carrying mode can include the following multiple modes. The first overlaid sequence carrying mode is that the overlaid sequence does not carry information bits of the LPWUS. For example, the overlaid sequence is a pseudo-random sequence, and the terminal receives an OOK modulated signal. An ON symbol in the OOK modulated signal can carry the pseudo-random sequence. In this case, the terminal needs to demodulate the OOK modulated signal to restore the information bits of the LPWUS. That is, after receiving the complete OOK modulated signal, the complete digital signal can be restored, and then the complete information bits can be restored. For example, the pseudo-random sequence can be [01010101], which can represent generating a high level. The overlaid sequence carrying mode 2 is that the overlaid sequence carries all information bits of the LPWUS. For example, one overlaid sequence carries three bits of the digital signal. 000 corresponds to overlaid sequence 1, 001 corresponds to overlaid sequence 2, 010 corresponds to overlaid sequence 3, and so on, and 111 corresponds to overlaid sequence 8. For example, the digital signal is [101010], the terminal receives an OOK modulated signal, and the first ON symbol in the OOK modulated signal can be modulated based on the overlaid sequence 5, and the second ON symbol can be modulated based on the overlaid sequence 2. In this case, the terminal can demodulate the overlaid sequence 5 and the overlaid sequence 2 to restore the complete information bits, or can demodulate the high and low levels represented by the OOK modulated signal to restore the complete information bits. As shown in FIG. 2a, the ON symbol in the OOK modulated signal corresponds to a time length (also referred to as a chip length), and the OFF symbol corresponds to a time length. The terminal can demodulate the overlaid sequence 5 and the overlaid sequence 2 to restore the complete digital signal [101010] after the third time length, or can demodulate the OOK modulated signal to restore the digital signal [101010] after the sixth time length. Based on the above example, it is shown that in the case of the overlaid sequence carrying mode 2, the OOK modulated signal sent by the network side to the terminal can carry information bits in a dual manner, and the terminal can demodulate one or both to restore the information bits. It should be noted that one overlaid sequence carrying three bits of the digital signal (also referred to as one overlaid sequence having 3 bits) is only an example. One overlaid sequence can carry one bit, two bits, or more bits of the digital signal, which is not limited in the present application. The overlaid sequence carrying mode 3 is that the overlaid sequence carries part of the information bits of the LPWUS. For example, two bits of the digital signal are carried by an overlaid sequence, 00 corresponds to overlaid sequence 1, 01 corresponds to overlaid sequence 2, 10 corresponds to overlaid sequence 3, and 11 corresponds to overlaid sequence 4. Suppose the digital signal is

[1010] The overlaid sequence only carries two bits of the digital signal, and the OOK modulated signal carries the remaining two bits of the digital signal. The terminal receives the OOK modulated signal, which includes an ON symbol and an OFF symbol, and the ON symbol can be modulated based on the overlaid sequence 3. In this case, the terminal can demodulate the overlaid sequence 3 and restore the complete information bit based on the high and low levels represented by the OOK modulated signal. The following embodiments take the bitmap of the information bits of the LPWUS as an example, and take the Manchester encoding method as an example to introduce the determination method of the overlaid sequence carrying mode provided by the present application in combination with FIGS. 3-9. Embodiment one: It should be understood that the network side sends the LPWUS to the terminal as the receiving party, and the network side and the terminal need to comply with the pre-defined protocol specification. The present application adds the determination rule of the new overlaid carrying mode in the pre-defined protocol specification, so that the network side and the terminal can select the corresponding overlaid sequence carrying mode based on this. In a possible implementation, the determination rule of the overlaid carrying mode is related to the number of information bits of the LPWUS, which can be referred to as the parameter of the LPWUS. In some embodiments, the number of the number threshold of the information bits of the LPWUS is 1, including the number threshold 1, and the determination rule 1 of the overlaid carrying mode can be: in the case that the number of the information bits of the LPWUS does not exceed the number threshold 1, the overlaid sequence carrying mode 1 can be used; in the case that the number of the information bits of the LPWUS exceeds the number threshold 1 (also referred to as the number of the information bits is greater than the number threshold 1), the overlaid sequence carrying mode 2 can be used. In some embodiments, the number of the number threshold of the information bits of the LPWUS can be 2, including the number threshold 1 and the number threshold 2, and the determination rule 2 of the overlaid sequence carrying manner can be: in the case that the number of the information bits of the LPWUS does not exceed the number threshold 1 (also referred to as less than or equal to the first threshold), the overlaid sequence carrying manner 1 can be adopted; in the case that the number of the information bits of the LPWUS exceeds the number threshold 1 and does not exceed the number threshold 2 (also referred to as greater than the first threshold and less than or equal to the second threshold), the overlaid sequence carrying manner 2 can be adopted; in the case that the number of the information bits of the LPWUS exceeds the number threshold 2 (also referred to as greater than the second threshold), the overlaid sequence carrying manner 3 can be adopted. It should be noted that the number of the number threshold of the information bits of the LPWUS is only an example, and more number thresholds can also be used; the determination rule 1 of the overlaid sequence carrying manner and the determination rule 2 of the overlaid sequence carrying manner are only examples, for example, in the case that the number of the information bits of the LPWUS exceeds the number threshold 1, the overlaid sequence carrying manner 3 can be adopted, and the present application does not limit this. Next, in combination with FIG. 3, taking the network side as a base station and the terminal including a main communication unit and a wake-up receiver unit as an example, the determination method of the overlaid sequence carrying manner in the case that the number of the information bits of the LPWUS is different is introduced. As shown in FIG. 3, the determination method of the overlaid sequence carrying manner can include the following steps: S301: The base station configures the number of the information bits of the LPWUS and the number threshold of the information bits of the LPWUS. In some embodiments, the number of the information bits of the LPWUS has a configuration range, and the base station can configure the number of the information bits of the LPWUS within the configuration range. For example, the information bits of the LPWUS are configurable in bit1-bit8, that is, the number of the information bits of the LPWUS is configurable within 1 information bit-8 information bits, for example, the base station can configure the number of the information bits of the LPWUS as 4, including bit1-bit4, or the base station can configure the number of the information bits of the LPWUS as 6, including bit1-bit6. In some embodiments, the base station can configure the number threshold of the information bits of the LPWUS, and can configure the number of the number threshold of the information bits of the LPWUS and the value of the number threshold of the information bits of the LPWUS. Exemplarily, the base station can configure the number of the number threshold of the information bits of the LPWUS as 2, including the number threshold 1 and the number threshold 2, and can configure the value of the number threshold of the information bits of the LPWUS, for example, the value of the number threshold 1 is 2, and the value of the number threshold 2 is 4. In some embodiments, the base station can also only configure the value of the number threshold of the information bits of the LPWUS, which is not limited in the present application. It should be noted that the number threshold of the information bits of the LPWUS configured by the base station is only an example, and the number threshold of the information bits of the LPWUS can also be predefined in the protocol specification, that is, the number threshold 1 and the number threshold 2 are predefined. In some embodiments, the present application can add the predefined number threshold of the information bits in the predefined protocol specification, and the determination rule 1 of the overlaid sequence carrying mode described above is taken as an example, which can be: in the case that the number of information bits of the LPWUS does not exceed 2, the overlaid sequence carrying mode 1 can be used; in the case that the number of information bits of the LPWUS exceeds 2, the overlaid sequence carrying mode 2 can be used. S302: The base station sends the number of information bits of the LPWUS and the number threshold of the information bits of the LPWUS to the terminal. In a possible implementation, the base station can send the number of information bits of the LPWUS and the number threshold of the information bits of the LPWUS to the terminal before establishing a communication connection with the terminal. In some embodiments, before the base station establishes a communication connection with the terminal, the base station can send system information to the terminal through the radio resource control layer (Radio Resource Control, RRC), and the system information can carry the indication information 1, which is used to indicate the number of information bits of the LPWUS and the number threshold of the information bits of the LPWUS. In another possible implementation, the base station can send the number of information bits of the LPWUS and the number threshold of the information bits of the LPWUS to the terminal in the process of establishing a communication connection with the terminal. In some embodiments, in the process of establishing a communication connection with the terminal, the base station can send a media access control control element (Media Access Control Control Element, MACCE) to the terminal through the media access control layer (Media Access Control, MAC), and the MACCE can carry the indication information 1. In some embodiments, in the process of establishing a communication connection between the base station and the terminal, the base station can send downlink control information (DCI) to the terminal through the physical layer, and the DCI can carry indication information 1. In this way, in the process of signaling interaction between the base station and the terminal, the number of information bits of the LPWUS and the number threshold of information bits of the LPWUS do not need to be separately sent by signaling to carry these information, which can reduce the signaling overhead between the base station and the terminal and reduce the cost. S303: The base station selects the corresponding overlaid sequence bearing mode based on the number of information bits of the LPWUS and the number threshold of information bits of the LPWUS. Based on the above introduction, the pre-defined protocol specification adds the determination rule of the overlaid bearing mode, and the base station can select the corresponding overlaid sequence bearing mode from the pre-defined protocol specification based on the number of information bits of the LPWUS and the number threshold of information bits of the LPWUS. In some embodiments, the number threshold of information bits of the LPWUS is 2, including number threshold 1 and number threshold 2, which are 2 and 4 respectively, and the base station can select the corresponding overlaid sequence bearing mode based on the determination rule 2 of the overlaid bearing mode introduced above. For example, the number of information bits of the LPWUS is 2, and the base station can select the overlaid sequence bearing mode 1, and the overlaid sequence does not bear the information bits of the LPWUS. In this way, in the case of fewer information bits of the LPWUS, the terminal can receive the complete OOK modulated signal faster, and the terminal can only demodulate the OOK modulated signal without demodulating the overlaid sequence, which can save the computing resources of the terminal. For example, the number of information bits of the LPWUS is 4, and the base station can select the overlaid sequence bearing mode 2, and the overlaid sequence bears all the information bits of the LPWUS. In this way, in the case of moderate information bits of the LPWUS, the terminal may need a long time to receive the complete OOK modulated signal, and by using the method of bearing all the information bits of the LPWUS in the overlaid sequence, the terminal can first demodulate the overlaid sequence to restore the complete information bits without receiving the complete OOK modulated signal, which can improve the demodulation speed of the terminal for the LPWUS. For example, the number of information bits of the LPWUS is 6, the base station can select the overlaid sequence carrying mode 3, and the overlaid sequence carries part of the information bits of the LPWUS. In this way, in the case of a large number of information bits of the LPWUS, on the one hand, the problem that the terminal needs to wait for a complete OOK modulated signal to restore the information bits can be avoided, the waiting time of the terminal can be reduced, and the demodulation speed of the terminal for the LPWUS can be improved; on the other hand, the problem that the overlaid sequence is too complex due to carrying all the information bits of the LPWUS can be avoided, and the demodulation speed and accuracy of the terminal for the LPWUS can be improved. S304: The terminal selects a corresponding overlaid sequence carrying mode based on the number of information bits of the LPWUS and the number threshold of information bits of the LPWUS. It should be noted that the implementation of S304 can refer to the introduction of S303, which will not be repeated here. In some embodiments, the main communication unit of the terminal can receive the number of information bits of the LPWUS and the number threshold of information bits of the LPWUS, and the main communication unit can select a corresponding overlaid sequence carrying mode based on the number of information bits of the LPWUS and the number threshold of information bits of the LPWUS. Subsequently, the main communication unit can send the selected overlaid sequence carrying mode to the wake-up receiver unit. Finally, the main communication unit is closed. The main communication unit has large power consumption. In the case that the main communication unit selects a corresponding overlaid sequence carrying mode, it can be sent to the wake-up receiver unit, so that the wake-up receiver unit demodulates the received LPWUS based on it. The main communication unit is closed, reducing the power loss of the terminal. S305: The base station modulates the information bits into an OOK modulated signal based on the selected overlaid sequence carrying mode. In the case that the base station needs to wake up the terminal, the base station can first convert the information bits of the LPWUS into a digital signal, and then modulate the digital signal into an OOK modulated signal. The OOK modulated signal can be modulated based on the overlaid sequence. S306: The base station sends the OOK modulated signal to the terminal. Based on the example of S303, different overlaid sequences under different overlaid sequence carrying modes are introduced below. In some embodiments, the number of information bits of the LPWUS is 2, the base station can select the overlaid sequence carrying mode 1 as an example, for example, the information bits bit1-bit2 are

[0011] , the information bits are encoded into a digital signal to obtain

[1010] and then modulated by the OOK modulation mode to obtain an OOK modulation signal. The OOK modulation signal can be modulated based on a pseudo-random sequence (which can be referred to as a first sequence) or a random number or a fixed ZC sequence, as shown in the OOK modulation signal in (a) of FIG. 4. The ON symbols in the first time length and the third time length can be modulated based on the pseudo-random sequence or the random number or the fixed ZC sequence. In the following, the OOK modulation signals generated by the overlaid sequence carrying mode 1 can be modulated based on the pseudo-random sequence or the random number or the fixed ZC sequence, and the following will not be described in detail. In some embodiments, the number of information bits of the LPWUS is 4, the base station can select the overlaid sequence carrying mode 2 as an example, for example, the information bits bit1-bit4 are

[1111] The information bits are encoded into a digital signal to obtain [10101010]. An OOK modulation signal can be modulated by using the OOK modulation mode. Assuming that one overlaid sequence carries 4 bits of the digital signal, the OOK modulation signal can be modulated based on the overlaid sequence 10 (which can be referred to as a second sequence), and the overlaid sequence 10 can carry 4 bits of the digital signal

[1010] . As shown in the OOK modulation signal in (b) of FIG. 4, the ON symbols in the first time length and the third time length can be modulated based on the overlaid sequence 10, and the ON symbols in the fifth time length and the seventh time length can be modulated based on the pseudo-random sequence. In addition, the ON symbols in the fifth time length and the seventh time length can also be modulated based on any one of a random number or a repeated overlaid sequence 10 (not shown in FIG. 4). In some embodiments, the number of information bits of the LPWUS is 6, the base station can select the overlaid sequence carrying mode 3 as an example, for example, the information bits bit1-bit6 are [111111], the information bits are encoded into a digital signal to obtain [101010101010]. An OOK modulation signal can be modulated by using the OOK modulation mode. Assuming that one overlaid sequence carries 4 bits of the digital signal, the OOK modulation signal can be modulated based on the overlaid sequence 10 (which can be referred to as a third sequence), and the overlaid sequence 10 can carry 4 bits of the digital signal

[1010] As shown in (c) of FIG. 4, the ON symbols in the first time length and the third time length of the OOK modulated signal can be modulated based on the overlaid sequence 10. S307: The terminal demodulates the received OOK modulated signal based on the selected overlaid sequence carrying manner, and restores the information bits of the LPWUS. It should be understood that the terminal can determine the modulation manner of the base station for the LPWUS based on the selected overlaid sequence carrying manner, and further determine the demodulation manner of the corresponding LPWUS. It can be understood that the terminal stores the correspondence between the overlaid sequence and the digital signal, and the terminal can demodulate the overlaid sequence based on the correspondence between the overlaid sequence and the digital signal. For example, the terminal stores that the overlaid sequence 1 corresponds to the digital signal

[0001] and so on. It should be noted that the following examples are for the demodulation of the OOK modulated signal in the three examples introduced in S308. In some embodiments, taking the overlaid sequence carrying manner 1 as an example, with the number of information bits of the LPWUS being 2, the terminal can determine that the overlaid sequence does not carry the information bits of the LPWUS, and it can wait for the complete OOK modulated signal of the LPWUS. The terminal demodulates the OOK modulated signal to obtain the digital signal

[1010] , and further restores the information bits of the LPWUS as

[0011] . In some embodiments, taking the overlaid sequence carrying manner 2 as an example, with the number of information bits of the LPWUS being 4, the terminal determines that the overlaid sequence carries all the information bits of the LPWUS, and does not need to wait for the complete OOK modulated signal of the LPWUS. The terminal can determine that the overlaid sequence 10 corresponds to the digital signal

[1010] based on the correspondence between the overlaid sequence and the digital signal. The terminal can receive the ON symbols modulated based on the overlaid sequence 10 in the first time length and the third time length, respectively, and can demodulate the two overlaid sequences 10 to obtain the digital signal [10101010], and further restores the information bits of the LPWUS as

[1111] . In some embodiments, the number of information bits of the LPWUS is 6, and the overlaied sequence carrying mode 3 is selected as an example, the terminal determines the part of information bits of the LPWUS carried by the overlaied sequence, can wait until the complete OOK modulated signal of the LPWUS is received, and based on the correspondence between the overlaied sequence and the digital signal, the terminal can determine that the overlaied sequence 10 corresponds to the digital signal

[1010] . The terminal can demodulate the overlaied sequence 10 to obtain [10101010] based on the ON symbols modulated by the overlaied sequence 10 received in the first time length and the third time length, respectively, and the terminal can demodulate the complete OOK modulated signal to obtain

[1010] , and then combine to obtain the complete digital signal [101010101010], and further restore the information bits of the LPWUS as [111111]. In some embodiments, the OOK modulated signal can be received by the wake-up receiver unit of the terminal, and based on the selected overlaied sequence carrying mode, the OOK modulated signal received is demodulated to restore the information bits of the LPWUS, and then the wake-up receiver unit determines that the information bits of the LPWUS indicate to wake up itself, and can trigger the main communication unit to start. After the wake-up receiver unit demodulates the information bits of the LPWUS, it is determined that the information bits indicate itself, and the wake-up receiver unit triggers the main communication unit to start. As can be seen from the above, the base station can flexibly select the corresponding overlaied sequence carrying mode based on the number of information bits of the LPWUS, which is conducive to improving the demodulation speed and demodulation accuracy of the terminal for the LPWUS and other demodulation performance. Embodiment two: Based on the above introduction of the OOK-1 modulation mode and the OOK-4 modulation mode. The OOK-1 modulation mode refers to that one OFDM symbol carries one modulation symbol, and the ON symbol and the OFF symbol introduced above are both modulation symbols. The length of one OFDM symbol in the OOK-1 modulation mode can correspond to one time length described above. The OOK-4 modulation mode refers to that one OFDM symbol carries M modulation symbols. The length of one OFDM symbol in the OOK-4 modulation mode can correspond to M time lengths described above. Exemplarily, the digital signal is

[1010] Taking the length of one OFDM symbol as 66.67 microseconds as an example, in the OOK-1 modulation mode, the network side can send one ON symbol in the first OFDM symbol, that is, send one ON symbol in 66.67 microseconds, which can be seen from (a) in FIG. 5. In the OOK-4 modulation mode, assuming that M=4, one OFDM symbol can carry 4 modulation symbols, the network side can send two ON symbols in the first OFDM symbol, and 66.67 microseconds is 4 time lengths, which can be seen from (b) in FIG. 5. Based on the pre-defined protocol specification introduced in Embodiment One, in a possible implementation manner, the determination rule of the overlaid carrying mode added in the pre-defined protocol specification can also be related to the modulation mode of the LPWUS, that is, related to the number of OFDM symbols carrying modulation symbols (which can be referred to as a parameter of the LPWUS). In some embodiments, the number of M value thresholds of the OOK-4 modulation mode is 2, including an M value threshold 1 and an M value threshold 2, and the determination rule 3 of the overlaid carrying mode can be: in the case of modulating the LPWUS in the OOK-1 modulation mode, or in the case of modulating the LPWUS in the OOK-4 modulation mode and the M value not exceeding the M value threshold 1 (which can also be referred to as being less than or equal to a third threshold), the overlaid sequence carrying mode 3 can be used; in the case of modulating the LPWUS in the OOK-4 modulation mode and the M value exceeding the M value threshold 1 and not exceeding the M value threshold 2 (which can also be referred to as being greater than the third threshold and less than or equal to a fourth threshold), the overlaid sequence carrying mode 2 can be used; in the case of modulating the LPWUS in the OOK-4 modulation mode and the M value exceeding the M value threshold 2 (which can also be referred to as being greater than the fourth threshold), the overlaid sequence carrying mode 1 can be used. It should be noted that the above determination rule 3 of the overlaid carrying mode is only an example, for example, in the case of using the OOK-1 modulation mode or using the OOK-4 modulation mode and the M value not exceeding the M value threshold 1, the overlaid sequence carrying mode 2 can be used. The number of M value thresholds of the OOK-4 modulation mode is also only an example, and the number of M value thresholds of the OOK-4 modulation mode can be 1, which is not limited in the present application. Next, taking the network side as a base station and the terminal including a main communication unit and a wake-up receiver unit as an example, the determination method of the overlaid sequence carrying mode in the case of different modulation modes of the LPWUS is introduced in combination with FIG. 6. As shown in FIG. 6, the determination method of the overlaid sequence carrying mode can include the following steps: S601: The base station configures a modulation mode of the LPWUS. In some embodiments, the base station can configure the modulation mode of the LPWUS as OOK-1. In some embodiments, the base station can configure the modulation mode of the LPWUS as OOK-4, and configure a value M, and configure a value threshold of M. Exemplarily, in the case that the base station configures the modulation mode of the LPWUS as OOK-4, the base station can configure the value M as 4, and configure the value threshold 1 of M as 1, and the value threshold 2 of M as 2. It should be noted that the value threshold of M of OOK-4 configured by the base station is only an example, and the value threshold of M of OOK-4 can also be predefined in the protocol specification, that is, the value threshold 1 of M and the value threshold 2 of M are predefined. In some embodiments, the present application can add the predefined value threshold of M in the predefined protocol specification, and the determination rule 3 of the overlaid sequence carrying mode described above is taken as an example, which can be: in the case that the LPWUS is modulated by OOK-1, or in the case that the LPWUS is modulated by OOK-4 and the value M does not exceed 1, the overlaid sequence carrying mode 3 can be adopted; in the case that the LPWUS is modulated by OOK-4 and the value M exceeds 1 and does not exceed 2, the overlaid sequence carrying mode 2 can be adopted; in the case that the LPWUS is modulated by OOK-4 and the value M exceeds 2, the overlaid sequence carrying mode 1 can be adopted. S602: The base station sends the modulation mode of the LPWUS to the terminal. In a possible implementation, the base station can send the modulation mode of the LPWUS to the terminal in the process of establishing a communication connection with the terminal. In some embodiments, in the process of establishing a communication connection with the terminal, the base station can send a MAC CE to the terminal through a MAC layer, and the MAC CE can carry indication information 2, which is used to indicate the modulation mode of the LPWUS. In some embodiments, in the process of establishing a communication connection with the terminal, the base station can send a DCI to the terminal through a physical layer, and the DCI can carry the indication information 2. In some embodiments, in the process of establishing a communication connection with the terminal, the base station can send a preamble to the terminal, and the preamble can carry the indication information 2. S603: The base station selects a corresponding overlaid sequence carrying mode based on the modulation mode of the LPWUS. Based on the above introduction, the pre-defined protocol specification adds the determination rule of the overlaid bearing mode, and the base station can select the corresponding overlaid sequence bearing mode from the pre-defined protocol specification based on the modulation mode of the LPWUS, or based on the modulation mode of the LPWUS, the M value and the M value threshold. In some embodiments, the number of M value thresholds is 2, including M value threshold 1 and M value threshold 2, which are 1 and 2 respectively, and the base station can select the corresponding overlaid sequence bearing mode based on the determination rule 3 of the overlaid bearing mode introduced above. For example, the modulation mode of the LPWUS is OOK-1, or the modulation mode of the LPWUS is OOK-4 and the M value is 1, in both cases one modulation symbol can be carried in one OFDM symbol, and the base station can select the overlaid sequence bearing mode 3 to carry part of the information bits of the LPWUS. In this way, one modulation symbol can be carried in one OFDM symbol, indicating that the transmission speed of the LPWUS is slow, and using the overlaid sequence bearing mode 3 can make the terminal not need to wait for a long time to demodulate and restore the information bits of the LPWUS, which can improve the demodulation speed of the terminal for the LPWUS. For example, the modulation mode of the LPWUS is OOK-4 and the M value is 2, in which case two modulation symbols can be carried in one OFDM symbol, and the base station can select the overlaid sequence bearing mode 2 to carry all the information bits of the LPWUS. In this way, two modulation symbols can be carried in one OFDM symbol, indicating that the transmission speed of the LPWUS is moderate, and using the overlaid sequence bearing mode 2 can demodulate the information bits of the LPWUS by demodulating the overlaid sequence, and also can make the terminal not need to wait for a long time to improve the demodulation speed of the terminal for the LPWUS. For example, the modulation mode of the LPWUS is OOK-4 and the M value is 4, in which case four modulation symbols can be carried in one OFDM symbol, and the base station can select the overlaid sequence bearing mode 1 to carry no information bits of the LPWUS. In this way, four modulation symbols can be carried in one OFDM symbol, indicating that the transmission speed of the LPWUS is fast, and using the overlaid sequence bearing mode 1 can make the terminal not need to wait for a long time to receive the complete OOK modulated signal, and then can demodulate the information bits of the LPWUS, which can also improve the demodulation speed of the terminal for the LPWUS. S604: The terminal selects a corresponding overlaid sequence carrying mode based on the modulation mode of the LPWUS. It should be noted that the implementation of S604 can refer to the introduction of S603, which will not be repeated here. S605: The base station modulates the information bits into an OOK modulated signal based on the selected overlaid sequence carrying mode. It should be noted that the implementation of S605 can refer to the introduction of S305, which will not be repeated here. S606: The base station sends the OOK modulated signal to the terminal. Based on the example of S603, the following introduces different overlaid sequences under different overlaid sequence carrying modes. The following takes the number of information bits of the LPWUS as 2 as an example, which includes bit1-bit2, the value is

[0011] , and the digital signal obtained by encoding the information bits is

[1010] . In some embodiments, the modulation mode of the LPWUS is an OOK-1 modulation mode, or the modulation mode of the LPWUS is an OOK-4 modulation mode, the value of M is 1, and the base station can select the overlaid sequence carrying mode 3. For example, one overlaid sequence carries two bits of digital signals, which can be modulated into an OOK modulated signal using an OOK modulation mode. The OOK modulated signal can be modulated based on the overlaid sequence 2 (which can be referred to as the fourth sequence), the overlaid sequence 2 corresponds to

[0010] , and the OOK modulated signal is shown in (a) of FIG. 7. The ON symbol in the first time length can be modulated based on the overlaid sequence 2. In some embodiments, the modulation mode of the LPWUS is an OOK-4 modulation mode, the value of M is 2, and the base station can select the overlaid sequence carrying mode 2. For example, one overlaid sequence carries two bits of digital signals, which can be modulated into an OOK modulated signal using an OOK modulation mode. The OOK modulated signal can be modulated based on the overlaid sequence 2 (which can be referred to as the fifth sequence), the overlaid sequence 2 corresponds to

[0010] , and the OOK modulated signal is shown in (b) of FIG. 7. The ON symbol in the first time length and the third time length can be modulated based on the overlaid sequence 2. In some embodiments, the modulation mode of the LPWUS is an OOK-4 modulation mode, the value of M is 4, and the base station can select the overlaid sequence carrying mode 1. The OOK modulation signal can be modulated by using an OOK modulation mode. The OOK modulation signal can be modulated based on a pseudo-random sequence (which can be referred to as a sixth sequence) or a random number. Referring to the OOK modulation signal shown in (c) of FIG. 7, the ON symbols in the first time length and the third time length can be modulated based on the pseudo-random sequence or the random number. S607: The terminal demodulates the received OOK modulation signal based on the selected overlaid sequence bearing mode, and restores the information bits of the LPWUS. It should be noted that the implementation of S607 can refer to the description of S307, which will not be repeated here. As can be seen from the above, the base station can consider the length of the transmission time of the LPWUS, and flexibly select the corresponding overlaid sequence bearing mode based on the modulation mode of the LPWUS, which is conducive to maintaining the demodulation speed of the terminal for the LPWUS. Embodiment Three In a possible implementation, the determination rule of the added overlaid bearing mode in the pre-defined protocol specification can be related to the number of information bits of the LPWUS and the modulation mode of the LPWUS, that is, related to both the number of information bits of the LPWUS and the number of OFDM symbols bearing modulation symbols (both of which can be referred to as parameters of the LPWUS). In some embodiments, the number of information bit quantity thresholds of the LPWUS is 2, including a quantity threshold 1 and a quantity threshold 2, and the number of M value thresholds of the OOK-4 modulation mode is 2, including an M value threshold 1 and an M value threshold 2. The determination rule 4 of the overlaid bearing mode can be: in the case that the number of information bits of the LPWUS does not exceed the quantity threshold 1, the OOK-1 modulation mode is used to modulate the LPWUS, or the OOK-4 modulation mode is used to modulate the LPWUS, and the M value does not exceed the M value threshold 1, the overlaid sequence bearing mode 1 can be used; in the case that the number of information bits of the LPWUS does not exceed the quantity threshold 1, the OOK-4 modulation mode is used to modulate the LPWUS, and the M value exceeds the M value threshold 1 and does not exceed the M value threshold 2, the overlaid sequence bearing mode 1 can also be used; in the case that the number of information bits of the LPWUS does not exceed the quantity threshold 1, the OOK-4 modulation mode is used to modulate the LPWUS, and the M value exceeds the M value threshold 2, the overlaid sequence bearing mode 2 can be used. The determination rule 4 of the overlaid sequence carrying mode can also be: in a case where the number of information bits of the LPWUS exceeds the number threshold 1 or does not exceed the number threshold 2, the LPWUS is modulated by using the OOK-1 modulation mode, or the LPWUS is modulated by using the OOK-4 modulation mode, and the M value does not exceed the M value threshold 1, the overlaid sequence carrying mode 2 can be used; in a case where the number of information bits of the LPWUS exceeds the number threshold 1 or does not exceed the number threshold 2, the LPWUS is modulated by using the OOK-4 modulation mode, and the M value exceeds the M value threshold 1 or does not exceed the M value threshold 2, the overlaid sequence carrying mode 1 can be used; in a case where the number of information bits of the LPWUS exceeds the number threshold 1 or does not exceed the number threshold 2, the LPWUS is modulated by using the OOK-4 modulation mode, and the M value exceeds the M value threshold 2, the overlaid sequence carrying mode 1 can be used. The determination rule 4 of the overlaid sequence carrying mode can also be: in a case where the number of information bits of the LPWUS exceeds the number threshold 2, the overlaid sequence carrying mode 3 can be used regardless of the modulation mode. It should be noted that the determination rule 4 of each overlaid sequence carrying mode described above is only an example, the number of information bit thresholds of the LPWUS is 2, and the number of M value thresholds of the OOK-4 modulation mode is also an example, which is not limited in the present application. Next, taking the network side as a base station and the terminal including a main communication unit and a wake-up receiver unit as an example, the determination method of the overlaid sequence carrying mode in a case where the number of information bits of the LPWUS and the modulation mode of the LPWUS are different is introduced in combination with FIG. 8. As shown in FIG. 8, the determination method of the overlaid sequence carrying mode can include the following steps: S801: The base station configures the number of information bits of the LPWUS, the number threshold of the information bits of the LPWUS, and the modulation mode of the LPWUS. S802: The base station sends the number of information bits of the LPWUS, the number threshold of the information bits of the LPWUS, and the modulation mode of the LPWUS to the terminal. S803: The base station selects the corresponding overlaid sequence carrying mode based on the number of information bits of the LPWUS, the number threshold of the information bits of the LPWUS, and the modulation mode of the LPWUS. In some embodiments, the number of the number threshold of the information bits of the LPWUS is 2, including the number threshold 1 and the number threshold 2, which are 2 and 4 respectively, the number of the M value threshold is 2, including the M value threshold 1 and the M value threshold 2, which are 1 and 2 respectively, and the base station can select the corresponding overlaid sequence bearing mode based on the determination rule 4 of the overlaid bearing mode introduced above. For example, the number of the information bits of the LPWUS is 2, the modulation mode of the LPWUS is OOK-1, or the modulation mode of the LPWUS is OOK-4, and the M value is 1, and the base station can select the overlaid sequence bearing mode 1, and the overlaid sequence does not bear the information bits of the LPWUS, indicating that the generated OOK modulated signal can be modulated based on a pseudo-random sequence (which can be referred to as a seventh sequence) or a random number. In this way, in the case that the information bits of the LPWUS are less, even if the transmission speed of the LPWUS is slower, the terminal can receive the complete OOK modulated signal faster, and the terminal does not need to wait for a long time to demodulate the information bits of the LPWUS, which can avoid affecting the demodulation speed of the terminal for the LPWUS. For example, the number of the information bits of the LPWUS is 2, the modulation mode of the LPWUS is OOK-4, and the M value is 2, or the modulation mode of the LPWUS is OOK-4, and the M value is 4, and the base station can select the overlaid sequence bearing mode 2, and the overlaid sequence bears all the information bits of the LPWUS. In this way, in the case that the information bits of the LPWUS are less, the transmission speed of the LPWUS is moderate or fast, indicating that the terminal can receive the complete OOK modulated signal faster, but the transmission speed is too fast, which may cause the terminal to demodulate the OOK modulated signal incorrectly, affecting the demodulation accuracy of the LPWUS, therefore, the overlaid sequence bearing mode 2 is adopted, so that the terminal can demodulate the overlaid sequence, which can ensure the accuracy of the demodulated information bits of the LPWUS. For example, the number of the information bits of the LPWUS is 4, the modulation mode of the LPWUS is OOK-1, or the modulation mode of the LPWUS is OOK-4, and the M value is 1, and the base station can select the overlaid sequence bearing mode 2, and the overlaid sequence bears all the information bits of the LPWUS. In this way, in the case that the information bits of the LPWUS are moderate and the transmission speed of the LPWUS is slow, it indicates that the terminal may receive the complete OOK modulated signal for a long time, therefore, the terminal can only demodulate the overlaid sequence to obtain the information bits of the LPWUS, which can avoid affecting the demodulation speed of the terminal for the LPWUS. For example, the number of information bits of the LPWUS is 4, the modulation mode of the LPWUS is OOK-4, and the value of M is 2 or 4. The base station can select the overlaid sequence carrying mode 1, and the overlaid sequence does not carry the information bits of the LPWUS, indicating that the generated OOK modulation signal can be modulated based on a pseudo-random sequence (which can be referred to as an eighth sequence) or a random number. In this way, in the case that the number of information bits of the LPWUS is moderate and the transmission speed of the LPWUS is moderate or fast, it indicates that the terminal can receive the complete OOK modulation signal relatively quickly, so the terminal can wait for the complete OOK modulation signal to demodulate the information bits of the LPWUS, which can avoid affecting the demodulation speed of the terminal for the LPWUS and reduce the occupation of computing resources. For example, the number of information bits of the LPWUS is 6, and the modulation mode of the LPWUS is any modulation mode. The base station can select the overlaid sequence carrying mode 3, and the overlaid sequence carries part of the information bits of the LPWUS. For example, the number of information bits of the LPWUS is 6, the modulation mode of the LPWUS is OOK-4, and the value of M is 4. The base station can select the overlaid sequence carrying mode 3, and the overlaid sequence carries part of the information bits of the LPWUS, indicating that the generated OOK modulation signal can be modulated based on the ninth sequence. For details, please refer to the example of the third sequence in S308. In this way, in the case that the number of information bits of the LPWUS is more, the time for the terminal to wait for the complete OOK modulation signal is avoided to be too long, which can improve the demodulation speed of the terminal for the LPWUS, while avoiding the terminal to demodulate a more complex overlaid sequence, which can ensure the demodulation accuracy of the terminal for the LPWUS. S804: The terminal selects a corresponding overlaid sequence carrying mode based on the number of information bits of the LPWUS, the number threshold of information bits of the LPWUS, and the modulation mode of the LPWUS. S805: The base station modulates the information bits into an OOK modulation signal based on the selected overlaid sequence carrying mode. S806: The base station sends the OOK modulation signal to the terminal. S807: The terminal demodulates the received OOK modulation signal based on the selected overlaid sequence carrying mode to restore the information bits of the LPWUS. It should be noted that the implementation of S801-S807 can refer to the description of S301-S307 in Embodiment I and the description of S601-S607 in Embodiment II, which will not be repeated here. From the above, the base station comprehensively considers the number of information bits of the LPWUS and the length of the transmission time of the LPWUS caused by the different modulation modes of the LPWUS, can flexibly select the corresponding overlaid sequence bearing mode, and can further improve the demodulation speed and demodulation accuracy of the terminal for the LPWUS and other demodulation performance. Embodiment Four Based on the above introduction, the digital signal is 1, the OOK modulated signal corresponds to one ON symbol, and the number of 1s in the digital signal is the number of ON symbols. In some embodiments, the number of 1s in the digital signal is related to the encoding mode of the network side for the information bits of the LPWUS. For example, in the Manchester encoding mode, the number of 1s in the digital signal is related to the number of information bits of the LPWUS, and both are the same. The following embodiments take the number of information bits of the LPWUS and the number of ON symbols as an example for introduction. In one possible implementation, the determination rule of the overlaid bearing mode can be related to the number of ON symbols, that is, related to the number of high levels in the OOK modulated signal (which can be referred to as a parameter of the LPWUS). In some embodiments, the number of ON symbol thresholds in the OOK modulated signal can be 2, including a number threshold 3 and a number threshold 4, and the determination rule 5 of the overlaid bearing mode can be: in the case that the number of ON symbols in the OOK modulated signal does not exceed the number threshold 3 (also referred to as less than or equal to the fifth threshold), the overlaid sequence bearing mode 1 can be adopted; in the case that the number of ON symbols in the OOK modulated signal exceeds the number threshold 3 and does not exceed the number threshold 4 (also referred to as greater than the fifth threshold and less than or equal to the sixth threshold), the overlaid sequence bearing mode 2 can be adopted; in the case that the number of ON symbols in the OOK modulated signal exceeds the number threshold 4 (also referred to as greater than the sixth threshold), the overlaid sequence bearing mode 3 can be adopted. It should be noted that the determination rule 5 of the above overlaid bearing mode is only an example, and the number of ON symbol thresholds is also only an example, which is not limited in the present application. Next, taking the network side as a base station and the terminal including a main communication unit and a wake-up receiver unit as an example, the determination method of the overlaid sequence bearing mode in the case that the number of ON symbols in the OOK modulated signal is different is introduced in combination with FIG. 9. As shown in FIG. 9, the determination method of the overlaid sequence bearing mode can include the following steps: S901: The base station configures the number of information bits of the LPWUS and the number threshold of ON symbols in the OOK modulated signal. In some embodiments, the base station configures the number of ON symbols threshold, the number of the ON symbols threshold, and the value of the ON symbols threshold. For example, the base station configures the number of the ON symbols threshold as 2, including the number threshold 3 and the number threshold 4, and the value of the ON symbols threshold, for example, the value of the number threshold 3 is 2, and the value of the number threshold 4 is 4. In some embodiments, the base station can also only configure the value of the ON symbols threshold, which is not limited in the present application. It should be noted that the base station configuring the number of ON symbols threshold in the OOK modulation signal is only an example, and the number of ON symbols threshold in the OOK modulation signal can also be predefined in the protocol specification, that is, the number threshold 3 and the number threshold 4 are predefined. In some embodiments, the present application can add predefined ON symbols threshold in the predefined protocol specification, and the determination rule 5 of the overlaid sequence carrying mode described above is taken as an example, which can be: in the case that the number of ON symbols in the OOK modulation signal does not exceed 2, the overlaid sequence carrying mode 1 can be used; in the case that the number of ON symbols in the OOK modulation signal exceeds 2 and does not exceed 4, the overlaid sequence carrying mode 2 can be used; in the case that the number of ON symbols in the OOK modulation signal exceeds 4, the overlaid sequence carrying mode 3 can be used. It should be noted that other implementation manners of S901 can refer to the introduction of S301, which will not be described here. S902: The base station sends the number of information bits of the LPWUS and the number of ON symbols threshold in the OOK modulation signal to the terminal. S903: The base station selects the corresponding overlaid sequence carrying mode based on the number of information bits of the LPWUS and the number of ON symbols threshold in the OOK modulation signal. It should be understood that the number of information bits of the LPWUS is related to the number of ON symbols in the OOK modulation signal, so the base station can determine the number of ON symbols in the OOK modulation signal based on the number of information bits of the LPWUS. Then the base station can select the corresponding overlaid sequence carrying mode based on the number of ON symbols in the OOK modulation signal and the number of ON symbols threshold in the OOK modulation signal. Taking the Manchester coding mode as an example, the number of information bits of the LPWUS is the same as the number of ON symbols in the OOK modulated signal. For example, the number of information bits of the LPWUS is 4, and the Manchester coding mode is used to encode the information bits to obtain [10101010], and the number of ON symbols in the OOK modulated signal is also 4. Then, the corresponding overlaid sequence bearing mode can be selected based on the determination rule 5 of the overlaid bearing mode introduced above. S904: The terminal selects the corresponding overlaid sequence bearing mode based on the number of information bits of the LPWUS and the number of ON symbols in the OOK modulated signal threshold. It should be noted that the implementation of S904 can refer to the introduction of S903, which will not be repeated here. S905: The base station modulates the information bits into the OOK modulated signal based on the selected overlaid sequence bearing mode. S906: The base station sends the OOK modulated signal to the terminal. S907: The terminal demodulates the received OOK modulated signal based on the selected overlaid sequence bearing mode to restore the information bits of the LPWUS. It should be noted that the implementation of S902, S905-S907 can refer to the introduction of S302, S305-S307 in Embodiment One, which will not be repeated here. In addition, in some coding modes, the number of ON symbols in the OOK modulated signal can also be irrelevant to the number of information bits of the LPWUS. In some embodiments, Embodiment Five can add the following steps on the basis of Embodiment Four, and S903, S904 and S905 do not need to be performed. Step 1: The base station converts the information bits of the LPWUS into the OOK modulated signal, and selects the corresponding overlaid sequence bearing mode based on the number of ON symbols in the OOK modulated signal (the number of ON symbols in the OOK modulated signal can be referred to as a parameter of the LPWUS) and the number of ON symbols in the OOK modulated signal threshold. Step 2: The base station sends the number of ON symbols in the OOK modulated signal to the terminal. In some embodiments, before the base station sends the OOK modulated signal to the terminal, the base station can send a preamble (which can be referred to as first information) to the terminal, and the preamble can carry indication information 3, which is used to indicate the number of ON symbols in the OOK modulated signal. Step 3: The terminal selects the corresponding overlaid sequence bearing mode based on the number of ON symbols in the OOK modulated signal and the number of ON symbols in the OOK modulated signal threshold. Step 4: The base station modulates the information bits into an OOK modulated signal based on the selected overlaid sequence bearing mode. The OOK modulated signal is modulated based on the overlaid sequence. The determination method of the overlaid sequence bearing mode can be performed in the order of S901-S902, Step 1-Step 3, Step 4, and S906-S907. As can be seen from the above, the base station can flexibly select the corresponding overlaid sequence bearing mode based on the number of ON symbols in the OOK modulated signal, which is conducive to improving the demodulation speed and demodulation accuracy of the terminal for the LPWUS and other demodulation performance. The embodiment of the present application also provides a computer readable storage medium storing a computer program, which can implement one or more steps in the determination method of any one of the above overlaid sequence bearing modes when executed. The computer readable storage medium can be a non-transitory computer readable storage medium, for example, the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device, etc. The embodiment of the present application also provides a computer program product comprising a computer program. When the computer program product is executed, it can implement one or more steps in the determination method of any one of the above overlaid sequence bearing modes. The computer readable storage medium and the computer program product provided by the embodiment of the present application are both used to execute the above-mentioned determination method of the corresponding overlaid sequence bearing mode, so the beneficial effects that can be achieved are referable to the beneficial effects of the above-mentioned determination method of the corresponding overlaid sequence bearing mode, which will not be described here again. The terms "first", "second", and "third" and the like in the specification of the embodiment of the present application, the claims and the drawings are used to distinguish different objects, and are not used to limit a specific order. In the embodiment of the present application, the words "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design solution described as "exemplary" or "for example" in the embodiment of the present application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Rather, the use of the words "exemplary" or "for example" is intended to present related concepts in a specific way. The above-described embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of determining a superposition sequence carrying mode, characterized in that, The method is applied to a network device, and comprises the following steps of: configuring first information of a low power wake-up signal (LPWUS); the first information is used to indicate parameters of the LPWUS; sending the first information to a terminal; determining a superposition sequence carrying mode based on the first information; sending a first signal to the terminal; the first signal is generated based on the superposition sequence carrying mode.

2. The method of claim 1, wherein, The first information of the LPWUS comprises a number of information bits of the LPWUS.

3. The method of claim 2, wherein, When the number of information bits of the LPWUS is less than or equal to a first threshold, the first signal is generated based on a first sequence or a random number, and the first sequence does not carry the information bits of the LPWUS.

4. The method of claim 2, wherein, When the number of information bits of the LPWUS is greater than the first threshold and less than or equal to a second threshold, the first signal is generated based on a second sequence, and the second sequence carries all the information bits of the LPWUS.

5. The method of claim 2, wherein, When the number of information bits of the LPWUS is greater than the second threshold, the first signal is generated based on a third sequence, and the third sequence carries part of the information bits of the LPWUS.

6. The method of claim 1, wherein, The first information of the LPWUS comprises a number of orthogonal frequency division multiplexing (OFDM) symbols carrying modulation symbols; and the first signal comprises the modulation symbols.

7. The method of claim 6, wherein, When the number of OFDM symbols carrying modulation symbols is less than or equal to a third threshold, the first signal is generated based on a fourth sequence, and the fourth sequence carries part of the information bits of the LPWUS.

8. The method of claim 6, wherein, When the number of OFDM symbols carrying modulation symbols is greater than the third threshold and less than or equal to a fourth threshold, the first signal is generated based on a fifth sequence, and the fifth sequence carries all the information bits of the LPWUS.

9. The method of claim 6, wherein, When the number of OFDM symbols carrying modulation symbols is greater than the fourth threshold, the first signal is generated based on a sixth sequence or a random number, and the sixth sequence does not carry the information bits of the LPWUS.

10. The method of claim 1, wherein, The first information of the LPWUS comprises a number of information bits of the LPWUS and a number of OFDM symbols carrying modulation symbols.

11. The method of claim 10, wherein, When the number of information bits of the LPWUS is less than or equal to a first threshold, and the number of OFDM symbols carrying modulation symbols is less than or equal to a third threshold, the first signal is generated based on a seventh sequence or a random number, and the seventh sequence does not carry the information bits of the LPWUS.

12. The method of claim 10, wherein, When the number of information bits of the LPWUS is greater than the first threshold and less than or equal to a second threshold, and the number of OFDM symbols carrying modulation symbols is greater than the third threshold and less than or equal to a fourth threshold, the first signal is generated based on an eighth sequence or a random number, and the eighth sequence does not carry the information bits of the LPWUS.

13. The method of claim 10, wherein, When the number of information bits of the LPWUS is greater than the second threshold, and the number of OFDM symbols carrying modulation symbols is greater than the fourth threshold, the first signal is generated based on a ninth sequence, and the ninth sequence carries part of the information bits of the LPWUS.

14. The method of claim 2, wherein, The method further comprises the following steps of: determining a number of high levels in the first signal based on the number of information bits of the LPWUS.

15. The method of claim 1, wherein, The first information of the LPWUS comprises the number of high levels in the first signal.

16. The method according to claim 14 or 15, characterized in that The number of high levels in the first signal is less than or equal to a fifth threshold value, the first signal is generated based on a tenth sequence or a random number, and the tenth sequence does not carry information bits of the LPWUS.

17. The method of claim 14 or 15, wherein, The number of high levels in the first signal is greater than a fifth threshold value and less than or equal to a sixth threshold value, the first signal is generated based on an eleventh sequence, and the eleventh sequence carries all information bits of the LPWUS.

18. The method of claim 14 or 15, wherein, The number of high levels in the first signal is greater than a sixth threshold value, the first signal is generated based on a twelfth sequence, and the twelfth sequence carries part of the information bits of the LPWUS.

19. The method of claim 4 or 12, wherein, The first threshold value and the second threshold value are configured by the network device, or the first threshold value and the second threshold value are predefined.

20. The method of claim 8 or 12, wherein, The third threshold value and the fourth threshold value are configured by the network device, or the third threshold value and the fourth threshold value are predefined.

21. The method of claim 17, wherein, The fifth threshold value and the sixth threshold value are configured by the network device, or the fifth threshold value and the sixth threshold value are predefined.

22. A method of determining a superposition sequence carrying mode, characterized by Applied to a terminal, comprising: Receiving first information of the LPWUS sent by the network device; the first information is used to indicate parameters of the LPWUS; Based on the first information, determining a superposition sequence carrying mode; Receiving a first signal sent by the network device; the first signal is generated based on the superposition sequence carrying mode.

23. The method of claim 22, wherein, The first information of the LPWUS includes the number of information bits of the LPWUS, and the determination of the superposition sequence carrying mode based on the first information includes: Based on the number of information bits of the LPWUS, a first threshold value and a second threshold value, the superposition sequence carrying mode is determined.

24. The method of claim 22, wherein, The first information of the LPWUS includes the number of OFDM symbols carrying modulation symbols, and the determination of the superposition sequence carrying mode based on the first information includes: Based on the number of OFDM symbols carrying modulation symbols, a third threshold value and a fourth threshold value, the superposition sequence carrying mode is determined.

25. The method of claim 22, wherein, The first information of the LPWUS includes the number of information bits of the LPWUS and the number of OFDM symbols carrying modulation symbols, and the determination of the superposition sequence carrying mode based on the first information includes: Based on the number of information bits of the LPWUS, the number of OFDM symbols carrying modulation symbols, a first threshold value, a second threshold value, a third threshold value and a fourth threshold value, the superposition sequence carrying mode is determined.

26. The method of claim 22, wherein, The first information of the LPWUS includes the number of high levels in the first signal, and the determination of the superposition sequence carrying mode based on the first information includes: Based on the number of high levels in the first signal, a fifth threshold value and a sixth threshold value, the superposition sequence carrying mode is determined.

27. The method of claim 23 or 25, wherein, The first threshold value and the second threshold value are configured by the network device and sent to the terminal, or the first threshold value and the second threshold value are predefined.

28. The method of claim 24 or 25, wherein, The third threshold value and the fourth threshold value are configured by the network device and sent to the terminal, or the third threshold value and the fourth threshold value are predefined. The fifth threshold value and the sixth threshold value are configured by the network device and sent to the terminal, or the fifth threshold value and the sixth threshold value are predefined.

29. The method of claim 26, wherein, The fifth threshold and the sixth threshold are configured by the network device and sent to the terminal, or the fifth threshold and the sixth threshold are predefined.

30. A system for determining superposition sequence carrying mode, the system comprising a network device and a terminal. The network device is configured to configure first information of an LPWUS, the first information being used to indicate parameters of the LPWUS. The network device is configured to send the first information to the terminal. The terminal is configured to receive the first information sent by the network device. The network device is configured to determine a superposition sequence carrying mode based on the first information. The terminal is configured to determine a superposition sequence carrying mode based on the first information. The network device is configured to send a first signal to the terminal, the first signal being generated based on the superposition sequence carrying mode. The terminal is configured to receive the first signal sent by the network device.

30. A communications device, characterized by The communication apparatus comprises a processing unit and a transceiver unit, and is configured to perform the method for determining superposition sequence carrying mode according to any one of claims 1 to 21, or the method for determining superposition sequence carrying mode according to any one of claims 22 to 29.

31. A communications device, characterized by The processor is coupled with a memory, and the memory stores programs or instructions for performing the method for determining superposition sequence carrying mode according to any one of claims 1 to 21, or the method for determining superposition sequence carrying mode according to any one of claims 22 to 29.

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