Communication method and communication device

Abstract

Provided are a communication method and a communication device. The method comprises: a terminal device receiving configuration information sent by a network device; and the terminal device receiving and / or detecting a first signal on the basis of the configuration information, wherein the first signal comprises a low-power wake-up signal and / or a low-power synchronization signal. By using the method, the terminal device can better receive a low-power wake-up signal. In addition, the terminal device can also better detect a low-power synchronization signal.

Description

Communication methods and communication equipment Technical Field

[0001] This application relates to the field of communication technology, and more specifically, to a communication method and a communication device. Background Technology

[0002] Some terminal devices can receive a low-power wake-up signal (LP WUS). Furthermore, in some cases, these terminal devices can also detect low-power measurement signals. How to help terminal devices better receive LP WUS or better detect low-power measurement signals is a technical problem that needs to be solved. Summary of the Invention

[0003] This application provides a communication method and a communication device. The various aspects covered by this application are described below.

[0004] In a first aspect, a communication method is provided, the method comprising: a terminal device receiving configuration information sent by a network device; the terminal device receiving and / or detecting a first signal according to the configuration information, the first signal including a low-power wake-up signal and / or a low-power synchronization signal.

[0005] In a second aspect, a communication method is provided, the method comprising: a network device sending configuration information to a terminal device, the configuration information being used to configure a first signal, the first signal including a low-power wake-up signal and / or a low-power synchronization signal.

[0006] Thirdly, a communication device is provided, which is a terminal device. The terminal device includes: a receiving unit for receiving configuration information sent by a network device; and an execution unit for receiving and / or detecting a first signal according to the configuration information, wherein the first signal includes a low-power wake-up signal and / or a low-power synchronization signal.

[0007] Fourthly, a communication device is provided, which is a network device. The network device includes: a transmitting unit for transmitting configuration information to a terminal device, wherein the configuration information is used to configure a first signal, and the first signal includes a low-power wake-up signal and / or a low-power synchronization signal.

[0008] Fifthly, a communication device is provided, including a transceiver, a memory, and a processor, wherein the memory is used to store a program, the processor is used to invoke the program in the memory, and to control the transceiver to receive or transmit signals so that the communication device performs the method as described in the first or second aspect.

[0009] A sixth aspect provides an apparatus including a processor for calling a program from a memory to cause the apparatus to perform the method as described in the first or second aspect.

[0010] In a seventh aspect, a chip is provided, including a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in the first or second aspect.

[0011] Eighthly, a computer-readable storage medium is provided having a program stored thereon that causes a computer to perform the method as described in the first or second aspect.

[0012] A ninth aspect provides a computer program product, characterized in that it includes a program that causes a computer to perform the method as described in the first or second aspect.

[0013] In a tenth aspect, a computer program is provided that causes a computer to perform the method as described in the first or second aspect.

[0014] In this embodiment, the terminal device can receive configuration information from the network device and receive a low-power wake-up signal based on the received configuration information. Furthermore, the terminal device can also detect a low-power synchronization signal based on the received configuration information. Using the method provided in this embodiment, the terminal device can better receive the low-power wake-up signal. Additionally, the terminal device can better detect the low-power synchronization signal. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the communication system used in the embodiments of this application.

[0016] Figure 2 is a system block diagram of a terminal device based on a wake-up receiver (WUR) in the related technology provided in the embodiments of this application.

[0017] Figure 3 is an example diagram of the low-power wake-up signal generation method in the related technology provided in the embodiments of this application.

[0018] Figure 4 is a structural example diagram of the new radio (NR) synchronization signal block (SSB) in the related technology provided in the embodiments of this application.

[0019] Figure 5 is a schematic flowchart of the communication method provided in an embodiment of this application.

[0020] Figure 6(a) is an example diagram of the first signal with different values ​​of symbol rate coefficient provided in the embodiments of this application.

[0021] Figure 6(b) is another example diagram of the first signal with different values ​​of symbol rate coefficient provided in the embodiments of this application.

[0022] Figure 6(c) is another example diagram of the first signal with different values ​​of symbol rate coefficient provided in the embodiments of this application.

[0023] Figure 7 is a schematic diagram of the structure of the communication device provided in an embodiment of this application.

[0024] Figure 8 is a schematic diagram of the structure of a communication device provided in another embodiment of this application.

[0025] Figure 9 is a schematic diagram of the structure of the communication device provided in the embodiment of this application. Detailed Implementation

[0026] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0027] Communication system

[0028] Figure 1 is a system architecture example diagram of a wireless communication system 100 applicable to embodiments of this application. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 can provide network coverage for a specific geographical area and can communicate with the terminal device 120 located within that coverage area. The terminal device 120 can access a network (such as a wireless network) through the network device 110. Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity; this embodiment of the application does not limit this.

[0029] It should be understood that the technical solutions of the embodiments of this application can be applied to various communication systems, such as 5G systems or new radio (NR), long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, etc. The technical solutions provided in this application can also be applied to future communication systems, such as sixth-generation mobile communication systems, satellite communication systems, and so on.

[0030] The terminal device in this application embodiment can also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The terminal device in this application embodiment can be a device that provides voice and / or data connectivity to a user, and can be used to connect people, objects, and machines, such as a handheld device with wireless connectivity, vehicle-mounted device, etc. The terminal devices in the embodiments of this application can be mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, self-driving, remote medical surgery, smart grids, transportation safety, smart cities, and smart homes, etc. Optionally, the terminal device can act as a base station. For example, the terminal device can act as a scheduling entity, providing sidelink signals between terminal devices in vehicle-to-everything (V2X) or device-to-device (D2D) systems. For instance, cellular phones and cars communicate with each other using sidelink signals. Cellular phones and smart home devices communicate without relaying communication signals through base stations.

[0031] The network device in this application embodiment can be a device for communicating with terminal devices. This network device can be, for example, an access network device or a wireless access network device. For instance, the network device can be a base station. The term "base station" can broadly encompass various names, or be replaced by, the following: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, micro base station, relay node, donor node, or the like, or a combination thereof.

[0032] Terminal devices based on wake-up receivers

[0033] To further reduce power consumption in terminal devices, the 3rd Generation Partnership Project (3GPP) Release 19 standard considers introducing a wake-up receiver to receive wake-up signals. The wake-up receiver can operate in a deeper sleep mode. It features extremely low cost, extremely low complexity, and extremely low power consumption. The wake-up receiver primarily receives wake-up signals using envelope detection. Alternatively, it can use methods similar to traditional receivers. In short, the power consumption of a wake-up receiver can be several orders of magnitude lower than that of a traditional receiver operating in sleep mode. Typically, a traditional receiver consumes more than 100 milliwatts, while a wake-up receiver can consume less than 1 milliwatt.

[0034] The wake-up signal received by the wake-up receiver differs from the modulation scheme and waveform of the signal carried by the physical downlink control channel (PDCCH) as defined in the existing 3GPP NR standard. The wake-up signal may include an envelope signal obtained by amplitude shift keying (ASK) modulation of the carrier signal. Demodulation of the envelope signal is generally performed by a low-power circuit. This low-power circuit can be driven by power provided by the radio frequency signal, and therefore can be passive. Alternatively, the wake-up receiver can be powered by the terminal itself. Regardless of the power supply method, the wake-up receiver can significantly reduce the power consumption of the terminal device compared to traditional receivers. The wake-up receiver can be integrated with the main receiver of the terminal device as an add-on module. Alternatively, the wake-up receiver can function as a standalone wake-up function module of the terminal device.

[0035] Figure 2 shows a system block diagram of a terminal device based on a wake-up receiver. As shown in Figure 2, the wake-up receiver can receive a wake-up signal. When the terminal device needs to activate the main receiver, the network device can send a wake-up signal to the terminal device. The wake-up signal can instruct the wake-up receiver to send wake-up information to the main receiver. The main receiver can switch from a closed state to an activated state in response to receiving the wake-up information from the wake-up receiver. When the terminal device does not need to activate the main receiver, the wake-up receiver may not send a wake-up information to the main receiver. The main receiver can remain in a closed state in response to not receiving a wake-up information from the wake-up receiver.

[0036] A wake-up receiver can be activated at any time by a wake-up signal and receive the wake-up information carried in the signal. The wake-up signal can include the envelope signal obtained by ASK modulation of the carrier signal. For example, in 802.11 technology, the wake-up signal uses on-off keying (OOK) modulation. OOK modulation can also be called binary amplitude shift keying (2ASK). In OOK modulation, the amplitude of the carrier signal can be modulated to non-zero and zero values, where non-zero values ​​correspond to "on" and zero values ​​correspond to "off". "On" and "off" can be used to represent information bits. In other words, information bits can be modulated to "on" or "off". For example, bit "1" can be modulated to "on" and bit "0" to "off".

[0037] Low-power wake-up signal

[0038] Low-power wake-up signals, such as those defined in 3GPP, can be generated by mapping information bits or raw information to specific OFDM subcarriers (SCs). Figure 3 shows an example of generating low-power wake-up signals in related technologies. The uppercase letter D in the upper right corner of Figure 3 represents the number of OOK symbols (bits) transmitted on each OFDM symbol. That is, the duration of one OFDM symbol is equal to the time required to transmit D OOK symbols. The larger the value of D, the smaller the time-domain length of each OOK symbol, and the higher the data rate of the OOK waveform. When D = 4, four OOK symbols can be transmitted on each OFDM symbol. If the OOK symbols are obtained using Manchester encoding, these four OOK symbols can transmit 2 information bits, or 2 bits of raw information. The four OOK symbols can form the following four possible waveform results: "0101", "0110", "1010", and "1001". In addition to the OOK symbols mentioned earlier, to ensure compatibility with NR signals, the final generated OFDM symbols can use the traditional cyclic prefix (CP) appending method. That is, a CP can be appended to the beginning of the OFDM symbol. In Figure 3, this CP corresponds to the portion preceding the first OOK symbol.

[0039] NR's SSB

[0040] In NR technology, the SSB plays a fundamental role in the initial access process, carrying out crucial functions. For example, the SSB can have one or more of the following functions: carrying cell identity (ID), performing time-frequency synchronization, indicating timing (symbol-level timing, slot-level timing, or frame timing), measuring cell signal strength, measuring beam signal strength, measuring cell signal quality, and measuring beam signal quality. To support these functions, the SSB can include a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a physical broadcast channel (PBCH), and demodulation reference symbols (DMRS) for both the SSB and PBCH. The PSS and SSS can be used to perform one or more of the following: carrying cell IDs (up to 1008 cell IDs), performing time-frequency synchronization, and acquiring symbol-level timing. The DMRS reference signal for the SSS and PBCH can be used to perform one or more of the following functions: measuring cell signal strength, measuring beam signal strength, measuring cell signal quality, and measuring beam signal quality. The PBCH can be used to indicate slot-level timing or frame timing information. In some cases, SSB can also be called the synchronization signal physical broadcast channel block (SS / PBCH Block).

[0041] When an NR system transmits SSBs using beam scanning, SSBs can be transmitted in every downlink beam. Each SSB can include a PSS, an SSS, and a PBCH. The sequence length of both the PSS and SSS can be 127, occupying 12 physical resource blocks (PRBs) (including guard subcarriers). To provide sufficient resources for the PBCH to be transmitted at a sufficiently low code rate, simulation evaluation shows that with a bandwidth of 24 PRBs per symbol, the PBCH only needs 2 symbols to meet performance requirements. Therefore, the bandwidth of the PBCH can be 24 PRBs.

[0042] The structure of the SSB, especially the temporal order of the PSS, SSS, and PBCH symbols, has unique characteristics. When a terminal device receives and processes an SSB, it processes the PSS before processing the SSS. Therefore, if the PSS is placed after the SSS, the terminal device needs to buffer the SSS to process it after the PSS. Thus, the PSS can be placed before the SSS. However, the temporal mapping order of the PSS, SSS, and PBCH within the SSB can have various combinations. In different options, the symbol spacing between the PSS and SSS, and the spacing between two PBCH symbols, may differ. Furthermore, the relative relationships between PBCH symbols and PSS, and between PBCH symbols and SSS, may also differ in different options.

[0043] Figure 4 shows an example structure of the SSS in NR. Using the structure shown in Figure 4, the SSS can assist in channel estimation for two PBCH symbols, thereby improving the demodulation performance of the PBCH. Therefore, the SSS is located between the two PBCH symbols. Simultaneously, it ensures the symbol spacing between the PSS and SSS, which is beneficial for improving the accuracy of frequency offset estimation. The PSS can be generated from an M-sequence, with a sequence length of 127 points. The SSS can be generated from a Gold sequence, also with a sequence length of 127 points.

[0044] Low-power synchronization signal

[0045] The function of a low-power synchronization signal is similar to that of the NR synchronization signal mentioned earlier. Low-power synchronization signals can be used to assist in the synchronization and measurement of low-power wake-up signal receivers; therefore, they can also be called low-power measurement signals. Similar to low-power wake-up signals, low-power synchronization signals can also be obtained based on simple modulation such as OOK. For example, low-power synchronization signals can be generated in the manner shown in Figure 3. Furthermore, a specific sequence (e.g., an OFDM sequence) can be superimposed on the OOK modulated signal shown in the upper right corner of Figure 3, and a specific mapping method can be used to generate a low-power synchronization signal.

[0046] As described above, some terminal devices can receive low-power wake-up signals. These signals can be used to wake up terminal devices in low-power mode. The parameters of these wake-up signals can help terminal devices better receive them. Furthermore, in some cases, these terminal devices can also detect low-power measurement signals. These signals can assist terminal devices in signal synchronization and measurement. The parameters of these measurement signals can help terminal devices better detect low-power wake-up signals. However, related technologies do not propose methods for determining the parameters of low-power wake-up signals or low-power synchronization signals. Therefore, determining the parameters of low-power wake-up signals to help terminal devices better receive them, and determining the parameters of low-power synchronization signals to help terminal devices better detect low-power measurement signals, are technical problems that need to be solved.

[0047] To address the aforementioned problems, embodiments of this application provide a communication method. Using this method, a terminal device can receive configuration information from a network device and, based on the received configuration information, receive a low-power wake-up signal. Furthermore, the terminal device can also detect a low-power synchronization signal based on the received configuration information. Using the method provided in this application, the terminal device can better receive the low-power wake-up signal. In addition, the terminal device can also better detect the low-power synchronization signal.

[0048] The communication method provided in the embodiments of this application will be described in detail below with reference to Figure 5.

[0049] Figure 5 is a schematic flowchart of a communication method provided in an embodiment of this application. The method in Figure 5 is described from the perspective of a terminal device. The terminal device in Figure 5 can be the terminal device 120 mentioned above. This terminal device can be used to communicate with network devices. This terminal device can be, for example, a UE. The terminal device in Figure 5 can also be a passive terminal. Here, a passive terminal can include a terminal that transmits information via passive backscattering.

[0050] Referring to Figure 5, the communication method provided in this application embodiment may include the following steps S510 and S520.

[0051] In step S510, the terminal device receives configuration information sent by the network device.

[0052] The configuration information here can be used to indicate various parameters of the first signal mentioned below. These parameters may include one or more of the following: the symbol rate of the first signal, the subcarrier spacing of the first signal, the resource location of the transmission resources of the first signal, the superposition method of the OFDM sequence of the first signal, and the resource mapping method of the first signal. The configuration information received by the terminal device may differ in different situations. In some cases, the first signal may include the low-power wake-up signal mentioned above. In this case, the configuration information received by the terminal device can be used to indicate the configuration parameters of the low-power wake-up signal. In other cases, the first signal may include the low-power synchronization signal mentioned above. In this case, the configuration information received by the terminal device can be used to indicate the configuration parameters of the low-power synchronization signal. For example, the configuration information received by the terminal device differs depending on the connection status between the terminal device and the network device. As a specific example, when the terminal device is in a connected state, the configuration information received by the terminal device may include the configuration parameters of the low-power wake-up signal. As another specific example, when the terminal device is in an idle state or an initial access state, the configuration information received by the terminal device may include the configuration parameters of both the low-power wake-up signal and the low-power synchronization signal.

[0053] The network device can send a downlink channel to the terminal device and carry the aforementioned configuration information in the downlink channel, so that the terminal device can receive the aforementioned configuration information through the downlink channel. Optionally, in some embodiments, the downlink channel may include a broadcast channel. Optionally, in other embodiments, the downlink channel may include system information. The system information here may include a system information block (SIB). Optionally, in other embodiments, the downlink channel may include radio resource control (RRC) signaling. The RRC signaling here may include the terminal device's dedicated RRC signaling or proprietary RRC signaling.

[0054] In step S520, the terminal device receives and / or detects the first signal according to the configuration information.

[0055] As mentioned above, in some cases, the first signal may include a low-power wake-up signal. In this case, the terminal device can receive the low-power wake-up signal based on the received configuration information. In other cases, the first signal may include a low-power synchronization signal. In this case, the terminal device can detect the low-power wake-up signal based on the received configuration information. As a specific example, when the terminal device is in a connected state, it can receive the low-power wake-up signal based on the received configuration information. As another specific example, when the terminal device is in an idle state or an initial access state, it can receive the low-power wake-up signal based on the received configuration information and detect the low-power synchronization signal based on the received configuration information.

[0056] As described in steps S510 and S520, using the method provided in this application embodiment, the terminal device can obtain the configuration parameters of the first signal by receiving configuration information from the network device instead of by blind cell search detection, and can receive the first signal according to the received configuration information (when the first signal includes a low-power wake-up signal). Furthermore, the terminal device can also detect the first signal according to the received configuration information (when the first signal includes a low-power synchronization signal). Using this method, the terminal device can not only receive the low-power wake-up signal better, but also detect the low-power synchronization signal better.

[0057] Step S510 states that the configuration information received by the terminal device can be used to indicate one or more of the following: the symbol rate of the first signal, the subcarrier spacing of the first signal, the resource location of the transmission resources of the first signal, the superposition method of the OFDM sequence of the first signal, and the resource mapping method of the first signal. These parameters are described in detail below.

[0058] The symbol rate of the first signal can be used to indicate the number of symbols transmitted by the first signal per unit time (e.g., per second). For example, when the first signal is an OOK signal obtained by OOK modulation, the symbol rate of the first signal can be used to indicate the number of OOK symbols transmitted per unit time. The symbol rate of the first signal can also be used to indicate the number of bits transmitted by the first signal per unit time (e.g., per second). In practical applications, the symbol rate of the first signal can be adjusted according to the coverage requirements of the first signal. The smaller the symbol rate of the first signal, the larger the coverage area that the first signal can cover, the larger the network capacity, and the longer the system response time. Therefore, when the first signal needs to cover a large area, the symbol rate of the first signal can be set to a smaller value. When the first signal needs to cover a small area, the symbol rate of the first signal can be set to a larger value. The symbol rate of the first signal can be flexibly adjusted according to the network deployment scenario, thereby flexibly adjusting the coverage area, network capacity, and system response time of the first signal.

[0059] The symbol rate of the first signal can be correlated with the symbol rate of the OFDM symbol. In other words, there can be a correlation between the symbol rate of the first signal and the symbol rate of the OFDM symbol. The symbol rate of the OFDM symbol can be used to indicate the number of OFDM symbols transmitted per unit time (e.g., per second). Based on the correlation between the symbol rate of the first signal and the symbol rate of the OFDM symbol, the symbol rate of the first signal can be used to indicate the number of symbols (or bits) transmitted by the first signal within the time domain length corresponding to one OFDM symbol.

[0060] The symbol rate of the first signal can be represented by the symbol rate coefficient N, where N is greater than or equal to 1. Here, the symbol rate coefficient N can be equal to the number of symbols transmitted by the first signal within the time domain length corresponding to one OFDM symbol. When the first signal transmits an integer number of symbols within the time domain length corresponding to one OFDM symbol, N is a positive integer greater than or equal to 1. In this case, the time domain length of the symbols in the first signal is equal to 1 / N of the time domain length corresponding to the OFDM symbol. Figure 6 shows example diagrams of the time domain length of the symbols in the first signal versus the time domain length corresponding to the OFDM symbol when the symbol rate coefficient N takes different values.

[0061] As shown in Figure 6(a), when N=1, the time-domain length of the symbol in the first signal is equal to the time-domain length corresponding to the OFDM symbol. In this case, the first signal transmits 1 symbol within the time-domain length corresponding to the OFDM symbol. Alternatively, the first signal transmits 1 bit within the time-domain length corresponding to the OFDM symbol. In Figure 6(a), the first signal transmits one bit "1" within the time-domain length corresponding to OFDM symbol 0# and one bit "0" within the time-domain length corresponding to OFDM symbol 1#. As shown in Figure 6(b), when N=2, the time-domain length of the symbol in the first signal is equal to half the time-domain length corresponding to the OFDM symbol. In this case, the first signal transmits 2 symbols within the time-domain length corresponding to the OFDM symbol. Alternatively, the first signal transmits 2 bits within the time-domain length corresponding to the OFDM symbol. In Figure 6(b), the first signal transmits one bit "1" and one bit "0" within the time domain length corresponding to OFDM symbol 0#, and one bit "0" and one bit "1" within the time domain length corresponding to OFDM symbol 1#. As shown in Figure 6(c), when N=4, the time domain length of the symbols in the first signal is equal to one-quarter of the time domain length corresponding to the OFDM symbol. At this time, the number of symbols transmitted by the first signal within the time domain length corresponding to the OFDM symbol is 4. Or, the number of bits transmitted by the first signal within the time domain length corresponding to the OFDM symbol is 4. In Figure 6(c), the first signal transmits two bits "1" and two bits "0" within the time domain length corresponding to OFDM symbol 0#, and two bits "1" and two bits "0" within the time domain length corresponding to OFDM symbol 1#.

[0062] The above describes the relationship between the time-domain length of the symbols in the first signal and the time-domain length corresponding to the OFDM symbols. As mentioned earlier, a CP can be appended to the beginning of the OFDM symbol. In the above description of the relationship between the time-domain length of the symbols in the first signal and the time-domain length corresponding to the OFDM symbols, "the time-domain length corresponding to the OFDM symbol" can be understood as the time-domain length corresponding to the remaining part of the OFDM symbol excluding the CP. For example, in the description of Figure 6, "the time-domain length corresponding to OFDM symbol 0#" can be understood as the time-domain length corresponding to the remaining part of OFDM symbol 0# excluding the CP, and "the time-domain length corresponding to OFDM symbol 1#" can be understood as the time-domain length corresponding to the remaining part of OFDM symbol 1# excluding the CP.

[0063] Step S510 mentions that the configuration information received by the terminal device can be used to indicate the symbol rate of the first signal. Step S510 also mentions that, in some cases, the first signal may include a low-power wake-up signal and a low-power synchronization signal. In this case, the configuration information received by the terminal device can be used to indicate the symbol rate of the low-power wake-up signal and the symbol rate of the low-power synchronization signal. The symbol rate of the low-power wake-up signal can be associated with the symbol rate of the low-power synchronization signal. Alternatively, there can be an association between the symbol rate of the low-power wake-up signal and the symbol rate of the low-power synchronization signal. The symbol rate of the low-power wake-up signal and the symbol rate of the low-power synchronization signal can be jointly configured based on the association between the symbol rates of the low-power wake-up signal and the low-power synchronization signal. In some embodiments, the symbol rate of the low-power wake-up signal can be configured. In this case, the symbol rate of the low-power synchronization signal can be determined based on the symbol rate configured for the low-power wake-up signal and based on the association between the symbol rates of the low-power wake-up signal and the low-power synchronization signal, without needing to configure the symbol rate of the low-power synchronization signal separately. In other embodiments, the symbol rate of the low-power synchronization signal can be configured. In this scenario, the symbol rate of the low-power wake-up signal can be determined based on the symbol rate configured for the low-power synchronization signal and the correlation between the symbol rate of the low-power synchronization signal and the symbol rate of the low-power wake-up signal, without needing to configure the symbol rate of the low-power wake-up signal separately. By jointly configuring the symbol rate of the low-power wake-up signal and the symbol rate of the low-power synchronization signal, the signaling overhead for configuration can be reduced.

[0064] When the configuration information received by the terminal device simultaneously indicates the symbol rate of both the low-power wake-up signal and the low-power synchronization signal, the configuration information can indicate this through a combination of symbol rates. That is, the configuration information can be used to indicate a combination of the symbol rates of the low-power wake-up signal and the low-power synchronization signal. One or more candidate symbol rate combinations can be predefined, each of which can include the symbol rate of the low-power wake-up signal and the symbol rate of the low-power synchronization signal. The network device can select one symbol rate combination from the one or more candidate combinations and send the selected symbol rate combination, carried in the configuration information, to the terminal device. After receiving the configuration information, the terminal device can determine the symbol rates of the low-power wake-up signal and the low-power synchronization signal. For example, the symbol rates of the low-power wake-up signal and the low-power synchronization signal can be indicated through a combination of symbol rate coefficients. Two candidate symbol rate coefficient combinations can be predefined. In the first candidate symbol rate coefficient combination, the value of the symbol rate coefficient of the low-power wake-up signal is N1 = 1, and the value of the symbol rate coefficient of the low-power synchronization signal is N2 = 2. In the second candidate symbol rate coefficient combination, the symbol rate coefficient of the low-power wake-up signal is N1 = 2, and the symbol rate coefficient of the low-power synchronization signal is N2 = 4. The network device can select a candidate symbol rate coefficient combination of N1 = 1 and N2 = 2, and send this combination to the terminal device in the configuration information. After receiving the configuration information, the terminal device can determine that the symbol rate coefficient of the low-power wake-up signal is N1 = 1 and the symbol rate coefficient of the low-power synchronization signal is N2 = 2.

[0065] In some implementations, the symbol rate of the low-power wake-up signal can be less than the symbol rate of the low-power synchronization signal. The symbol rate of the low-power wake-up signal may affect the demodulation of the low-power wake-up signal. The symbol rate of the low-power synchronization signal may affect the measurement accuracy of the low-power synchronization signal. Measurement accuracy here can include one or more of the following: time measurement accuracy, frequency measurement accuracy. When the symbol rate of the low-power wake-up signal is greater than or equal to the symbol rate of the low-power synchronization signal, the measurement accuracy of the low-power measurement signal may not meet the demodulation requirements of the low-power wake-up signal. Therefore, the symbol rate of the low-power wake-up signal can be less than the symbol rate of the low-power synchronization signal so that the measurement accuracy of the low-power measurement signal can meet the demodulation requirements of the low-power wake-up signal. For example, when using the above-mentioned method of indicating the symbol rate of the low-power wake-up signal and the symbol rate of the low-power synchronization signal through a combination of symbol rate coefficients, the symbol rate coefficient of the low-power wake-up signal can be set to be less than the symbol rate coefficient of the low-power synchronization signal in the symbol rate coefficient combination.

[0066] As mentioned earlier, the configuration information received by the terminal device can be used to indicate the resource location of the transmission resources of the first signal. This resource location can include one or more of the following: frequency domain location and time domain location. The configuration information can configure the resource location of the transmission resources of the first signal on a unit of resource block (RB). In some implementations, the configuration information can configure the resource location of the transmission resources of the first signal on the first bandwidth part (BWP). The first BWP can differ depending on the connection between the terminal device and the network device.

[0067] When the terminal device is in an idle state, the first BWP here can be the initial BWP. That is, when the terminal device is in an idle state, the resource location of the transmission resource of the first signal can be configured on the initial BWP. For example, the configuration information can be in units of RBs, configuring the frequency domain location of the transmission resource of the first signal on a frequency point within the initial BWP.

[0068] When the terminal device is in a connected state, the first BWP here can be the currently active BWP. That is, when the terminal device is in a connected state, the resource location of the transmission resource of the first signal can be configured on the currently active BWP. For example, the configuration information can be in units of RBs, configuring the frequency domain location of the transmission resource of the first signal on a frequency point within the currently active BWP.

[0069] For the time-domain location of the transmission resource of the first signal, the configuration information can configure the time-domain location period and offset within the system frame. Optionally, in some embodiments, the configuration information can configure the time-domain location of the transmission resource of the first signal on a time slot basis.

[0070] When the configuration information configures the resource location of the transmission resource of the first signal on the first BWP, the subcarrier spacing corresponding to the first signal can be configured to be the same as the subcarrier spacing corresponding to the first BWP. For example, when the terminal device is in an idle state, the subcarrier spacing corresponding to the first signal can be configured to be the same as the subcarrier spacing corresponding to the initial BWP. As another example, when the terminal device is in a connected state, the subcarrier spacing corresponding to the first signal can be configured to be the same as the subcarrier spacing corresponding to the currently active BWP.

[0071] As mentioned earlier, in certain situations (e.g., when the terminal device is in an idle state), the first signal may include a low-power wake-up signal and a low-power synchronization signal. In this case, configuration information can be used to indicate the parameters of the low-power wake-up signal and the low-power synchronization signal. These parameters may include one or more of the following: symbol rate, subcarrier spacing, resource location of transmission resources, OFDM sequence overlay method, and resource mapping method. At this time, the low-power wake-up signal and the low-power synchronization signal can be jointly configured for one or more of the above parameters. The parameters for joint configuration may include one or more of the following: subcarrier spacing and frequency domain location. In some embodiments, the subcarrier spacing of the low-power wake-up signal and the low-power synchronization signal can be jointly configured. For example, the same subcarrier spacing can be configured for the low-power wake-up signal and the low-power synchronization signal. That is, the low-power wake-up signal and the low-power synchronization signal can correspond to the same subcarrier spacing. In other embodiments, the frequency domain location of the low-power wake-up signal and the low-power synchronization signal can be jointly configured. For example, the same frequency domain location can be configured for the low-power wake-up signal and the low-power synchronization signal. That is, the low-power wake-up signal and the low-power synchronization signal can correspond to the same frequency domain location. By jointly configuring one or more parameters of the low-power wake-up signal and the low-power synchronization signal, the signaling overhead for configuration can be reduced. Of course, the low-power wake-up signal and the low-power synchronization signal can be configured independently for one or more of the above parameters. Independently configurable parameters may include time-domain positions. In some embodiments, the time-domain positions of the low-power wake-up signal and the low-power synchronization signal can be configured separately. For example, different time-domain positions can be configured for the low-power wake-up signal and the low-power synchronization signal. That is, the low-power wake-up signal and the low-power synchronization signal can correspond to different time-domain positions.

[0072] Step S510 mentions that the configuration information received by the terminal device can be used to indicate the superposition method of the OFDM sequence of the first signal. There can be multiple superposition methods for the OFDM sequence. In some cases, the OFDM sequence superimposed in the first signal can be a fixed OFDM sequence. Here, "fixed OFDM sequence" can be understood as a predefined OFDM sequence. This fixed OFDM sequence can be associated with a cell. For different cells, different fixed OFDM sequences can be superimposed in the first signal. In other cases, the OFDM sequence superimposed in the first signal can be an OFDM sequence selected from multiple candidate sequences. This application embodiment does not specifically limit the number of candidate sequences. The number of candidate sequences can include, but is not limited to, 2 or 4. The configuration information received by the terminal device can be used to indicate which superposition method mentioned above was used for the OFDM sequence of the first signal. Of course, the superposition method of the OFDM sequence indicated by the configuration information is not limited to the two superposition methods listed above; the configuration information can also be used to indicate other superposition methods besides the two mentioned above.

[0073] Step S510 further mentions that the configuration information received by the terminal device can be used to indicate the resource mapping method of the first signal. The resource mapping method here can include a time-domain resource mapping method. The configuration information can configure the time-domain resource mapping method of the first signal. The time-domain resource mapping method of the first signal can include the mapping method of the first signal within a time slot. The time-domain resource mapping method of the first signal can be used to indicate one or more of the following: the start symbol of the first signal, the end symbol of the first signal, and the number of symbols in the first signal.

[0074] The method embodiments of this application have been described in detail above with reference to Figures 1 to 6. The apparatus embodiments of this application will be described in detail below with reference to Figures 7 to 9. It should be understood that the descriptions of the method embodiments correspond to the descriptions of the apparatus embodiments; therefore, any parts not described in detail can be referred to the preceding method embodiments.

[0075] Figure 7 is a schematic diagram of the structure of a communication device 700 provided in an embodiment of this application. The communication device 700 shown in Figure 7 is a terminal device. The communication device 700 includes a receiving unit 710 and an execution unit 720. The receiving unit 710 is used to receive configuration information sent by a network device. The execution unit 720 is used to receive and / or detect a first signal according to the configuration information, the first signal including a low-power wake-up signal and / or a low-power synchronization signal.

[0076] In some implementations, the configuration information is carried in one or more of the following: broadcast channel, system information, and RRC signaling.

[0077] In some implementations, the system information is SIB, and the RRC signaling is the dedicated RRC signaling of the terminal device.

[0078] In some implementations, the configuration information is used to indicate one or more of the following for the first signal: symbol rate, subcarrier spacing, resource location of transmission resources, superposition method of OFDM sequences, and resource mapping method.

[0079] In some implementations, the symbol rate of the first signal is associated with the symbol rate of the OFDM symbol.

[0080] In some implementations, the time-domain length of the symbol in the first signal is 1 / N of the time-domain length corresponding to the OFDM symbol, where N is a positive integer greater than or equal to 1.

[0081] In some implementations, the time-domain length corresponding to the OFDM symbol is the time-domain length corresponding to the remaining part of the OFDM symbol excluding the CP.

[0082] In some implementations, the symbol rate of the low-power wake-up signal is associated with the symbol rate of the low-power synchronization signal.

[0083] In some implementations, the configuration information is used to indicate a combination of the symbol rate of the low-power wake-up signal and the symbol rate of the low-power synchronization signal.

[0084] In some implementations, the symbol rate of the low-power wake-up signal is less than the symbol rate of the low-power synchronization signal.

[0085] In some implementations, the configuration information is used to configure the resource location of the transmission resource of the first signal on the first BWP.

[0086] In some implementations, the terminal device is in an idle state, and the first BWP is the initial BWP; or, the terminal device is in a connected state, and the first BWP is the currently active BWP.

[0087] In some implementations, the subcarrier spacing corresponding to the first signal is the same as the subcarrier spacing corresponding to the first BWP.

[0088] In some implementations, the low-power wake-up signal and the low-power synchronization signal correspond to the same subcarrier interval; or, the low-power wake-up signal and the low-power synchronization signal correspond to the same frequency domain position; or, the low-power wake-up signal and the low-power synchronization signal correspond to different time domain positions.

[0089] In some implementations, the OFDM sequence superimposed on the first signal is a fixed OFDM sequence, and the fixed OFDM sequence is associated with a cell; or, the OFDM sequence superimposed on the first signal is an OFDM sequence selected from multiple candidate sequences.

[0090] In some implementations, the configuration information is used to configure the time-domain resource mapping method of the first signal, and the time-domain resource mapping method is used to indicate one or more of the start symbol, end symbol, and number of symbols of the first signal.

[0091] Figure 8 is a schematic diagram of the structure of a communication device 800 provided in an embodiment of this application. The communication device 800 shown in Figure 8 is a network device. The communication device 800 includes a transmitting unit 810. The transmitting unit 810 is used to send configuration information to a terminal device. The configuration information is used to configure a first signal, the first signal including a low-power wake-up signal and / or a low-power synchronization signal.

[0092] In some implementations, the configuration information is carried in one or more of the following: broadcast channel, system information, and RRC signaling.

[0093] In some implementations, the system information is SIB, and the RRC signaling is the dedicated RRC signaling of the terminal device.

[0094] In some implementations, the configuration information is used to indicate one or more of the following for the first signal: symbol rate, subcarrier spacing, resource location of transmission resources, superposition method of OFDM sequences, and resource mapping method.

[0095] In some implementations, the symbol rate of the first signal is associated with the symbol rate of the OFDM symbol.

[0096] In some implementations, the time-domain length of the symbol in the first signal is 1 / N of the time-domain length corresponding to the OFDM symbol, where N is a positive integer greater than or equal to 1.

[0097] In some implementations, the time-domain length corresponding to the OFDM symbol is the time-domain length corresponding to the remaining part of the OFDM symbol excluding the CP.

[0098] In some implementations, the symbol rate of the low-power wake-up signal is associated with the symbol rate of the low-power synchronization signal.

[0099] In some implementations, the configuration information is used to indicate a combination of the symbol rate of the low-power wake-up signal and the symbol rate of the low-power synchronization signal.

[0100] In some implementations, the symbol rate of the low-power wake-up signal is less than the symbol rate of the low-power synchronization signal.

[0101] In some implementations, the configuration information is used to configure the resource location of the transmission resource of the first signal on the first BWP.

[0102] In some implementations, the terminal device is in an idle state, and the first BWP is the initial BWP; or, the terminal device is in a connected state, and the first BWP is the currently active BWP.

[0103] In some implementations, the subcarrier spacing corresponding to the first signal is the same as the subcarrier spacing corresponding to the first BWP.

[0104] In some implementations, the low-power wake-up signal and the low-power synchronization signal correspond to the same subcarrier interval; or, the low-power wake-up signal and the low-power synchronization signal correspond to the same frequency domain position; or, the low-power wake-up signal and the low-power synchronization signal correspond to different time domain positions.

[0105] In some implementations, the OFDM sequence superimposed on the first signal is a fixed OFDM sequence, and the fixed OFDM sequence is associated with a cell; or, the OFDM sequence superimposed on the first signal is an OFDM sequence selected from multiple candidate sequences.

[0106] In some implementations, the configuration information is used to configure the time-domain resource mapping method of the first signal, and the time-domain resource mapping method is used to indicate one or more of the start symbol, end symbol, and number of symbols of the first signal.

[0107] Figure 9 is a schematic diagram of the structure of a communication device applicable to embodiments of this application. The dashed lines in Figure 9 indicate that the unit or module is optional. This device 900 can be used to implement the methods described in the above method embodiments. Device 900 can be a chip, a terminal device, or a network device.

[0108] The apparatus 900 may include one or more processors 910. The processor 910 may support the apparatus 900 in implementing the methods described in the preceding method embodiments. The processor 910 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0109] The apparatus 900 may further include one or more memories 920. The memories 920 store a program that can be executed by the processor 910, causing the processor 910 to perform the methods described in the preceding method embodiments. The memories 920 may be independent of the processor 910 or integrated within the processor 910.

[0110] The device 900 may also include a transceiver 930. The processor 910 can communicate with other devices or chips via the transceiver 930. For example, the processor 910 can send and receive data with other devices or chips via the transceiver 930.

[0111] This application also provides a computer-readable storage medium for storing a program. This computer-readable storage medium can be applied to the communication device provided in this application, and the program causes a computer to execute the methods performed by the communication device in various embodiments of this application.

[0112] This application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the communication device provided in this application embodiment, and the program causes a computer to execute the methods performed by the communication device in various embodiments of this application.

[0113] This application also provides a computer program. This computer program can be applied to the communication device provided in this application, and causes the computer to execute the methods performed by the communication device in various embodiments of this application.

[0114] It should be understood that the terms "system" and "network" in this application can be used interchangeably. Furthermore, the terminology used in this application is only for explaining specific embodiments of the application and is not intended to limit the application. The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. In addition, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0115] In the embodiments of this application, the term "instruction" can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0116] In the embodiments of this application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.

[0117] In the embodiments of this application, the term "correspondence" can indicate a direct or indirect correspondence between two things, or an association between two things, or a relationship such as instruction and being instructed, configuration and being configured.

[0118] In this application embodiment, "predefined" or "preconfigured" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0119] In this application embodiment, the "protocol" may refer to a standard protocol in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems. This application does not limit this.

[0120] In the embodiments of this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0121] In the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0122] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0123] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0124] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0125] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can read or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs, DVDs) or semiconductor media (e.g., solid-state disks, SSDs), etc.

[0126] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, include: The terminal device receives configuration information sent by the network device; The terminal device receives and / or detects a first signal according to the configuration information, the first signal including a low-power wake-up signal and / or a low-power synchronization signal.

2. The method according to claim 1, characterized in that, The configuration information is carried in one or more of the following: broadcast channel, system information, and Radio Resource Control (RRC) signaling.

3. The method according to claim 2, characterized in that, The system information is a System Information Block (SIB), and the RRC signaling is the dedicated RRC signaling for the terminal device.

4. The method according to any one of claims 1 to 3, characterized in that, The configuration information is used to indicate one or more of the following for the first signal: symbol rate, subcarrier spacing, resource location of transmission resources, superposition method of orthogonal frequency division multiplexing (OFDM) sequences, and resource mapping method.

5. The method according to any one of claims 1 to 4, characterized in that, The symbol rate of the first signal is related to the symbol rate of the OFDM symbol.

6. The method according to claim 5, characterized in that, The time-domain length of the symbol in the first signal is 1 / N of the time-domain length corresponding to the OFDM symbol, where N is a positive integer greater than or equal to 1.

7. The method according to claim 6, characterized in that, The time-domain length corresponding to the OFDM symbol is the time-domain length corresponding to the remaining part of the OFDM symbol excluding the cyclic prefix CP.

8. The method according to any one of claims 1 to 7, characterized in that, The symbol rate of the low-power wake-up signal is associated with the symbol rate of the low-power synchronization signal.

9. The method according to claim 8, characterized in that, The configuration information is used to indicate the combination of the symbol rate of the low-power wake-up signal and the symbol rate of the low-power synchronization signal.

10. The method according to claim 8 or 9, characterized in that, The symbol rate of the low-power wake-up signal is less than the symbol rate of the low-power synchronization signal.

11. The method according to any one of claims 1 to 10, characterized in that, The configuration information is used to configure the resource location of the transmission resources of the first signal on the first bandwidth portion (BWP).

12. The method according to claim 11, characterized in that: The terminal device is in an idle state, and the first BWP is the initial BWP; or... The terminal device is in a connected state, and the first BWP is the currently active BWP.

13. The method according to claim 11 or 12, characterized in that, The subcarrier spacing corresponding to the first signal is the same as the subcarrier spacing corresponding to the first BWP.

14. The method according to any one of claims 1 to 13, characterized in that: The low-power wake-up signal and the low-power synchronization signal correspond to the same subcarrier interval; or... The low-power wake-up signal and the low-power synchronization signal correspond to the same frequency domain position; or... The low-power wake-up signal and the low-power synchronization signal correspond to different time-domain positions.

15. The method according to any one of claims 1 to 14, characterized in that: The OFDM sequence superimposed in the first signal is a fixed OFDM sequence, and the fixed OFDM sequence is associated with the cell; or, The OFDM sequence superimposed in the first signal is an OFDM sequence selected from multiple candidate sequences.

16. The method according to any one of claims 1 to 15, characterized in that, The configuration information is used to configure the time-domain resource mapping method of the first signal, and the time-domain resource mapping method is used to indicate one or more of the start symbol, end symbol, and number of symbols of the first signal.

17. A communication method, characterized in that, include: The network device sends configuration information to the terminal device. The configuration information is used to configure a first signal, which includes a low-power wake-up signal and / or a low-power synchronization signal.

18. The method according to claim 17, characterized in that, The configuration information is carried in one or more of the following: broadcast channel, system information, and Radio Resource Control (RRC) signaling.

19. The method according to claim 18, characterized in that, The system information is a System Information Block (SIB), and the RRC signaling is the dedicated RRC signaling for the terminal device.

20. The method according to any one of claims 17 to 19, characterized in that, The configuration information is used to indicate one or more of the following for the first signal: symbol rate, subcarrier spacing, resource location of transmission resources, superposition method of orthogonal frequency division multiplexing (OFDM) sequences, and resource mapping method.

21. The method according to any one of claims 17 to 20, characterized in that, The symbol rate of the first signal is related to the symbol rate of the OFDM symbol.

22. The method according to claim 21, characterized in that, The time-domain length of the symbol in the first signal is 1 / N of the time-domain length corresponding to the OFDM symbol, where N is a positive integer greater than or equal to 1.

23. The method according to claim 22, characterized in that, The time-domain length corresponding to the OFDM symbol is the time-domain length corresponding to the remaining part of the OFDM symbol excluding the cyclic prefix CP.

24. The method according to any one of claims 17 to 23, characterized in that, The symbol rate of the low-power wake-up signal is associated with the symbol rate of the low-power synchronization signal.

25. The method according to claim 24, characterized in that, The configuration information is used to indicate the combination of the symbol rate of the low-power wake-up signal and the symbol rate of the low-power synchronization signal.

26. The method according to claim 24 or 25, characterized in that, The symbol rate of the low-power wake-up signal is less than the symbol rate of the low-power synchronization signal.

27. The method according to any one of claims 17 to 26, characterized in that, The configuration information is used to configure the resource location of the transmission resources of the first signal on the first bandwidth portion (BWP).

28. The method according to claim 27, characterized in that: The terminal device is in an idle state, and the first BWP is the initial BWP; or... The terminal device is in a connected state, and the first BWP is the currently active BWP.

29. The method according to claim 27 or 28, characterized in that, The subcarrier spacing corresponding to the first signal is the same as the subcarrier spacing corresponding to the first BWP.

30. The method according to any one of claims 17 to 29, characterized in that: The low-power wake-up signal and the low-power synchronization signal correspond to the same subcarrier interval; or... The low-power wake-up signal and the low-power synchronization signal correspond to the same frequency domain position; or... The low-power wake-up signal and the low-power synchronization signal correspond to different time-domain positions.

31. The method according to any one of claims 17 to 30, characterized in that: The OFDM sequence superimposed in the first signal is a fixed OFDM sequence, and the fixed OFDM sequence is associated with the cell; or, The OFDM sequence superimposed in the first signal is an OFDM sequence selected from multiple candidate sequences.

32. The method according to any one of claims 17 to 31, characterized in that, The configuration information is used to configure the time-domain resource mapping method of the first signal, and the time-domain resource mapping method is used to indicate one or more of the start symbol, end symbol, and number of symbols of the first signal.

33. A communication device, characterized in that, The communication device is a terminal device, and the terminal device includes: The receiving unit is used to receive configuration information sent by network devices; An execution unit is configured to receive and / or detect a first signal according to the configuration information, the first signal including a low-power wake-up signal and / or a low-power synchronization signal.

34. The device according to claim 33, characterized in that, The configuration information is carried in one or more of the following: broadcast channel, system information, and Radio Resource Control (RRC) signaling.

35. The device according to claim 34, characterized in that, The system information is a System Information Block (SIB), and the RRC signaling is the dedicated RRC signaling for the terminal device.

36. The device according to any one of claims 33 to 35, characterized in that, The configuration information is used to indicate one or more of the following for the first signal: symbol rate, subcarrier spacing, resource location of transmission resources, superposition method of orthogonal frequency division multiplexing (OFDM) sequences, and resource mapping method.

37. The device according to any one of claims 33 to 36, characterized in that, The symbol rate of the first signal is related to the symbol rate of the OFDM symbol.

38. The device according to claim 37, characterized in that, The time-domain length of the symbol in the first signal is 1 / N of the time-domain length corresponding to the OFDM symbol, where N is a positive integer greater than or equal to 1.

39. The device according to claim 38, characterized in that, The time-domain length corresponding to the OFDM symbol is the time-domain length corresponding to the remaining part of the OFDM symbol excluding the cyclic prefix CP.

40. The device according to any one of claims 33 to 39, characterized in that, The symbol rate of the low-power wake-up signal is associated with the symbol rate of the low-power synchronization signal.

41. The device according to claim 40, characterized in that, The configuration information is used to indicate the combination of the symbol rate of the low-power wake-up signal and the symbol rate of the low-power synchronization signal.

42. The device according to claim 40 or 41, characterized in that, The symbol rate of the low-power wake-up signal is less than the symbol rate of the low-power synchronization signal.

43. The device according to any one of claims 33 to 42, characterized in that, The configuration information is used to configure the resource location of the transmission resources of the first signal on the first bandwidth portion (BWP).

44. The device according to claim 43, characterized in that: The terminal device is in an idle state, and the first BWP is the initial BWP; or... The terminal device is in a connected state, and the first BWP is the currently active BWP.

45. The device according to claim 43 or 44, characterized in that, The subcarrier spacing corresponding to the first signal is the same as the subcarrier spacing corresponding to the first BWP.

46. ​​The device according to any one of claims 33 to 45, characterized in that: The low-power wake-up signal and the low-power synchronization signal correspond to the same subcarrier interval; or... The low-power wake-up signal and the low-power synchronization signal correspond to the same frequency domain position; or... The low-power wake-up signal and the low-power synchronization signal correspond to different time-domain positions.

47. The device according to any one of claims 33 to 46, characterized in that: The OFDM sequence superimposed in the first signal is a fixed OFDM sequence, and the fixed OFDM sequence is associated with the cell; or, The OFDM sequence superimposed in the first signal is an OFDM sequence selected from multiple candidate sequences.

48. The device according to any one of claims 33 to 47, characterized in that, The configuration information is used to configure the time-domain resource mapping method of the first signal, and the time-domain resource mapping method is used to indicate one or more of the start symbol, end symbol, and number of symbols of the first signal.

49. A communication device, characterized in that, The communication device is a network device, and the network device includes: The sending unit is used to send configuration information to the terminal device. The configuration information is used to configure a first signal, which includes a low-power wake-up signal and / or a low-power synchronization signal.

50. The device according to claim 49, characterized in that, The configuration information is carried in one or more of the following: broadcast channel, system information, and Radio Resource Control (RRC) signaling.

51. The device according to claim 50, characterized in that, The system information is a System Information Block (SIB), and the RRC signaling is the dedicated RRC signaling for the terminal device.

52. The device according to any one of claims 49 to 51, characterized in that, The configuration information is used to indicate one or more of the following for the first signal: symbol rate, subcarrier spacing, resource location of transmission resources, superposition method of orthogonal frequency division multiplexing (OFDM) sequences, and resource mapping method.

53. The device according to any one of claims 49 to 52, characterized in that, The symbol rate of the first signal is related to the symbol rate of the OFDM symbol.

54. The device according to claim 53, characterized in that, The time-domain length of the symbol in the first signal is 1 / N of the time-domain length corresponding to the OFDM symbol, where N is a positive integer greater than or equal to 1.

55. The device according to claim 54, characterized in that, The time-domain length corresponding to the OFDM symbol is the time-domain length corresponding to the remaining part of the OFDM symbol excluding the cyclic prefix CP.

56. The device according to any one of claims 49 to 55, characterized in that, The symbol rate of the low-power wake-up signal is associated with the symbol rate of the low-power synchronization signal.

57. The device according to claim 56, characterized in that, The configuration information is used to indicate the combination of the symbol rate of the low-power wake-up signal and the symbol rate of the low-power synchronization signal.

58. The device according to claim 56 or 57, characterized in that, The symbol rate of the low-power wake-up signal is less than the symbol rate of the low-power synchronization signal.

59. The device according to any one of claims 49 to 58, characterized in that, The configuration information is used to configure the resource location of the transmission resources of the first signal on the first bandwidth portion (BWP).

60. The device according to claim 59, characterized in that: The terminal device is in an idle state, and the first BWP is the initial BWP; or... The terminal device is in a connected state, and the first BWP is the currently active BWP.

61. The device according to claim 59 or 60, characterized in that, The subcarrier spacing corresponding to the first signal is the same as the subcarrier spacing corresponding to the first BWP.

62. The device according to any one of claims 49 to 61, characterized in that: The low-power wake-up signal and the low-power synchronization signal correspond to the same subcarrier interval; or... The low-power wake-up signal and the low-power synchronization signal correspond to the same frequency domain position; or... The low-power wake-up signal and the low-power synchronization signal correspond to different time-domain positions.

63. The device according to any one of claims 49 to 62, characterized in that: The OFDM sequence superimposed in the first signal is a fixed OFDM sequence, and the fixed OFDM sequence is associated with the cell; or, The OFDM sequence superimposed in the first signal is an OFDM sequence selected from multiple candidate sequences.

64. The device according to any one of claims 49 to 63, characterized in that, The configuration information is used to configure the time-domain resource mapping method of the first signal, and the time-domain resource mapping method is used to indicate one or more of the start symbol, end symbol, and number of symbols of the first signal.

65. A communication device, characterized in that, The device includes a transceiver, a memory, and a processor. The memory stores a program, and the processor invokes the program in the memory and controls the transceiver to receive or transmit signals so that the communication device performs the method as described in any one of claims 1 to 16 or the method as described in any one of claims 17 to 32.

66. An apparatus, characterized in that, Includes a processor for calling a program from memory to cause the apparatus to perform the method as claimed in any one of claims 1 to 16 or the method as claimed in any one of claims 17 to 32.

67. A chip, characterized in that, Includes a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as claimed in any one of claims 1 to 16 or the method as claimed in any one of claims 17 to 32.

68. A computer-readable storage medium, characterized in that, It contains a program that causes a computer to perform the method as described in any one of claims 1 to 16 or the method as described in any one of claims 17 to 32.

69. A computer program product, characterized in that, Includes a program that causes a computer to perform the method as claimed in any one of claims 1 to 16 or the method as claimed in any one of claims 17 to 32.

70. A computer program, characterized in that, The computer program causes the computer to perform the method as described in any one of claims 1 to 16 or the method as described in any one of claims 17 to 32.

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