Communication method and apparatus

Abstract

The present application relates to the technical field of communications. Provided are a communication method and apparatus. A first terminal device and a network device can each determine a first pattern of a monitoring occasion within a first time period, wherein the first time period is a transmission occasion of a low power wake up signal (LP-WUS), and the monitoring occasion is a monitoring occasion for the LP-WUS; and the network device can send the LP-WUS on the basis of the first pattern, and the first terminal device determines the monitoring opportunity of the first terminal device on the basis of the first pattern. On this basis, the first terminal device can clearly determine how to monitor the LP-WUS, thereby ensuring the timely wake-up of the first terminal device, improving the data processing efficiency, and ensuring the continuity of service transmission.

Description

Communication method and device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on April 3, 2024, with application number 202410409135.7 and application name "A Communication Method and Device", the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to a communication method and device. Background Art

[0004] The user equipment (UE) is equipped with a main receiver (MR) (or main radio (MR) or main module). The UE can use the MR to th Generation, 5G) new radio (NR) main link sends and receives signals.

[0005] In order to further reduce the power consumption of the UE, the UE can also use a low power wake up receiver (LP-WUR) independent of the MR to receive signals. The LP-WUR can be implemented by a circuit or chip with a relatively simple structure, and its power consumption is low. Among them, the LP-WUR is used to receive a low power wake up signal (LP-WUS) from the network device. When the LP-WUR detects the LP-WUS, the UE wakes up the MR that is turned off (or in sleep state) in the UE.

[0006] LP-WUR monitors LP-WUS in LP-WUS occasions (LOs), and each LO includes one or more LP-WUS monitoring occasions (MOs). The UE can monitor LP-WUS in each MO. Different MOs can transmit LP-WUS in different beam directions and different types of LP-WUS wake-up information. In addition, in order to improve signal coverage, the same LP-WUS wake-up information may be transmitted repeatedly multiple times in different MOs. In order to determine the content of different LP-WUS, the UE usually needs to monitor all MOs in a LO to determine whether to wake up the UE's MR. This method may cause the MR to wake up untimely, affecting the transmission of services. Summary of the Invention

[0007] The present application provides a communication method and apparatus for determining a mapping mode of MO in LO.

[0008] In a first aspect, the present application provides a communication method that can be performed by a first communication device, which can be a terminal device, a chip, or a circuit. The method can be applied to 5G communication systems or communication systems above 6G. The method can also be applied to non-terrestrial communication systems, etc. Optionally, the chip can be a chip in the terminal device. This application does not limit this. Optionally, the circuit can be a circuit in the terminal device. This application does not limit this. The method is performed as follows:

[0009] Determine a first mode of monitoring timing within a first time period, where the first time period is a transmission timing of the LP-WUS, and the monitoring timing is a monitoring timing of the LP-WUS; determine the monitoring timing of the first terminal device according to the first mode.

[0010] It should be noted that when the first communication device is a terminal device, the first time period can be understood as the reception opportunity of LP-WUS, and one or more LOs can be transmitted within the first time period, which is not specifically limited here. The first mode (pattern) can also be called the first type (type), the first pattern, the first pattern, the first sample, the first image structure, the first arrangement method, or the first mapping method, etc., which are not specifically limited here. It should also be noted that the above-mentioned first mode can be pre-configured for the first communication device and the second communication device, or it can be received by the first communication device from the second communication device. The acquisition method of the first mode is not specifically limited here. Usually, the first time period is within an LP-WUS paging cycle / paging cycle / discontinuous reception (DRX) cycle / LP-WUS listening cycle, and a first time period includes one LO. This is only an example and is not specifically limited.

[0011] In this application, after the first terminal device obtains the first pattern of monitoring opportunities within the first time period, it can determine the monitoring timing of the first terminal device to monitor the LP-WUS based on the first pattern. Based on this, the first terminal device can clearly determine how to monitor the LP-WUS, thereby ensuring that the first terminal device is awakened in a timely manner, improving data processing efficiency, and ensuring the continuity of service transmission.

[0012] In an optional manner, the first mode is associated with the following two parameters:

[0013] The number of synchronization signal transmissions and the number of LP-WUS types in the synchronization signal set; wherein the type of synchronization signal is a synchronization signal block (SSB) and / or a low power synchronization signal (LP-SS), and the LP-WUS is used to carry the identifier of at least one wake-up terminal device or the identifier of the wake-up terminal device group, and different types of LP-WUS carry different identifiers of the wake-up terminal device or the wake-up terminal device group.

[0014] It should be noted that the number of synchronization signals transmitted in a synchronization signal set (e.g., SSB burst) is the number of synchronization signals actually transmitted by the network device to the terminal device. For example, if the number of candidate SSBs in an SSB burst (i.e., the maximum number of SSBs supported for transmission) is 4, but the number of SSBs actually transmitted is 3, then the number of synchronization signals transmitted in the synchronization signal set in this application is 3.

[0015] In the present application, the first mode is related to the number of transmissions of synchronization signals in the synchronization signal set and the number of types of LP-WUS. Based on this, the mapping relationship between the monitoring timing of LP-WUS and the synchronization signal and the type of LP-WUS can be determined, so that the first terminal device can clearly know how to monitor LP-WUS.

[0016] In an optional manner, the first mode is also related to the number of repeated transmissions of the LP-WUS.

[0017] It should be noted that due to the simple modulation method, the LP-WUS signal has poor coverage and may need to be repeated multiple times to improve signal coverage. Therefore, the first mode is usually related to the number of repeated transmissions of the LP-WUS. In addition, it should be noted that an LP-WUS usually carries the identifier of a terminal device to be awakened, or carries the identifier of a group of terminal devices to be awakened.

[0018] In the present application, the first mode is not only related to the number of transmissions of synchronization signals in the synchronization signal set and the number of types of LP-WUS, but also to the number of repeated transmissions of LP-WUS. Based on this, the mapping relationship between the monitoring timing of LP-WUS and the synchronization signal, the type of LP-WUS and the number of repeated transmissions can be determined, so that the first terminal device can clearly understand how to monitor LP-WUS.

[0019] In an optional manner, the first mode includes one or more of the following:

[0020] Mode 1: The monitoring opportunities corresponding to different LP-WUSs corresponding to the same synchronization signal are continuous;

[0021] Mode 2: The monitoring opportunities corresponding to different LP-WUS corresponding to the same synchronization signal are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are continuous;

[0022] Mode 3: The monitoring opportunities corresponding to different LP-WUS corresponding to the same synchronization signal are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are discontinuous;

[0023] Mode 4: The monitoring opportunities corresponding to different synchronization signals corresponding to the same LP-WUS are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are continuous;

[0024] Mode 5: The monitoring opportunities corresponding to different synchronization signals corresponding to the same LP-WUS are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are discontinuous.

[0025] It should be noted that the same synchronization signal can be understood as a synchronization signal with the same index. For example, if the synchronization signal is SSB, then the synchronization signal with index SSB1 is one synchronization signal, and the synchronization signal with index SSB2 is another synchronization signal. This is only an example.

[0026] In the present application, based on different forms of the first mode, the monitoring timing of the LP-WUS can be clarified.

[0027] In an optional manner, the first communication device further receives first indication information, where the first indication information is used to indicate a first mode; the first communication device determines the first mode of monitoring opportunities within the first time period according to the first indication information.

[0028] Based on this indication the first mode is more flexible.

[0029] In an optional manner, the first communication device further receives second indication information, where the second indication information is used to indicate configuration parameters within the first time period.

[0030] Based on this, the first communications device may specify the monitoring timing of the LP-WUS based on the configuration parameters.

[0031] In an optional manner, the configuration parameters include at least one of the following:

[0032] A first parameter S, a second parameter N, and a third parameter X; wherein S indicates the number of transmissions of synchronization signals in the synchronization signal set, N indicates the maximum number of different LP-WUSs allowed to be transmitted in the first time period, X is a first number, the first number indicates the number of identical LP-WUSs in the first time period, and S, N, and X are integers.

[0033] Based on this, the first communications device may specify the monitoring timing of the LP-WUS based on the configuration parameters.

[0034] In an optional manner, the first communication device further determines the monitoring timing of the first terminal device to monitor the LP-WUS according to the first mode and the second indication information.

[0035] Based on this, the first communication device can specify the monitoring timing of the first terminal device to monitor the LP-WUS based on the configuration parameters.

[0036] In an optional manner, if the first mode is mode 1, the number of listening opportunities in the first time period is determined to be S*N, and the [N*K+n]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the nth LP-WUS, where 0≤K≤S-1, 1≤n≤N, and K and n are integers.

[0037] In an optional manner, if the first mode is mode 2, the number of listening opportunities in the first time period is determined to be S*N*X, and the [N*X*K+n*X+R]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the n+1th LP-WUS, where 0≤K≤S-1, 0≤n≤N-1, 1≤R≤X, and K, n, and R are integers.

[0038] In an optional manner, if the first mode is mode 3, the number of listening opportunities in the first time period is determined to be S*N*X, and the [R*N*S+N*K+n]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the nth LP-WUS, where 0≤K≤S-1, 1≤n≤N, 0≤R≤X-1, and K, n, and R are integers.

[0039] In an optional manner, if the first mode is mode 4, the number of listening opportunities in the first time period is determined to be S*N*X, and the [n*S*X+R*S+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the n+1th LP-WUS, where 1≤K≤S, 0≤n≤N-1, 0≤R≤X-1, and K, n, and R are integers.

[0040] In an optional manner, if the first mode is mode 5, the number of listening opportunities in the first time period is determined to be S*N*X, and the [R*N*S+S*n+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the n+1th LP-WUS, where 1≤K≤S, 0≤n≤N-1, 0≤R≤X-1, and K, n, and R are integers.

[0041] In an optional manner, at least one LP-WUS is received within a listening opportunity of the first terminal device; and the first terminal device is woken up.

[0042] Based on this, the first terminal device can be awakened in time when it monitors LP-WUS, thereby improving data processing efficiency and ensuring the continuity of service transmission.

[0043] In an optional manner, after the first terminal device is awakened, the LP-WUS is not monitored.

[0044] In this application, after the first terminal device is awakened, it does not monitor LP-WUS, thereby saving power consumption of the first terminal device.

[0045] In an optional manner, the first indication information and / or the second indication information is carried by one of the following signalings:

[0046] Downlink control information (DCI), radio resource control (RRC) signaling, media / medium access control element (MAC CE), system information block (SIB), LP-WUS signaling, or LP-SS signaling.

[0047] In a second aspect, the present application provides a communication method that can be performed by a second communication device, which can be a network device, a chip, or a circuit. The method can be applied to 5G communication systems or communication systems above 6G. The method can also be applied to non-terrestrial communication systems, etc. Optionally, the chip can be a chip in a network device. This application does not limit this. Optionally, the circuit can be a circuit in a network device. This application does not limit this. The method is performed as follows:

[0048] Determine a first mode of a monitoring opportunity within a first time period, where the first time period is a transmission opportunity of a low power wake-up signal LP-WUS, and the monitoring opportunity is a monitoring opportunity of the LP-WUS; and send the LP-WUS at the monitoring opportunity according to the first mode.

[0049] It should be noted that, when the first communication device is a network device, the first time period can be understood as a sending opportunity of the LP-WUS, and one or more LOs can be transmitted within the first time period, which is not specifically limited here.

[0050] In an optional manner, the first mode is associated with the following two parameters:

[0051] The number of synchronization signal transmissions and the number of LP-WUS types in the synchronization signal set; wherein the synchronization signal type is SSB and / or LP-SS, and the LP-WUS is used to carry at least one wake-up terminal device identifier or wake-up terminal device group identifier, and different LP-WUS types carry different wake-up terminal device identifiers or wake-up terminal device group identifiers. In one optional embodiment, the first mode is also related to the number of repeated transmissions of the LP-WUS.

[0052] In an optional manner, the first mode is also related to the number of repeated transmissions of the LP-WUS.

[0053] In an optional manner, the first mode includes one or more of the following:

[0054] Mode 1: The monitoring opportunities corresponding to different LP-WUSs corresponding to the same synchronization signal are continuous;

[0055] Mode 2: The monitoring opportunities corresponding to different LP-WUS corresponding to the same synchronization signal are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are continuous;

[0056] Mode 3: The monitoring opportunities corresponding to different LP-WUS corresponding to the same synchronization signal are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are discontinuous;

[0057] Mode 4: The monitoring opportunities corresponding to different synchronization signals corresponding to the same LP-WUS are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are continuous;

[0058] Mode 5: The monitoring opportunities corresponding to different synchronization signals corresponding to the same LP-WUS are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are discontinuous.

[0059] In an optional manner, the second communication device further sends first indication information, where the first indication information is used to indicate the first mode.

[0060] In an optional manner, the second communication device further sends second indication information, where the second indication information is used to indicate configuration parameters within the first time period.

[0061] In an optional manner, the configuration parameters include at least one of the following:

[0062] A first parameter S, a second parameter N, and a third parameter X; wherein S indicates the number of transmissions of synchronization signals in the synchronization signal set, N indicates the maximum number of different LP-WUSs allowed to be transmitted in the first time period, X is a first number, the first number indicates the number of identical LP-WUSs in the first time period, and S, N, and X are integers.

[0063] In an optional manner, if the first mode is mode 1, the number of listening opportunities in the first time period is determined to be S*N, and the [N*K+n]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the nth LP-WUS, where 0≤K≤S-1, 1≤n≤N, and K and n are integers.

[0064] In an optional manner, if the first mode is mode 2, the number of listening opportunities in the first time period is determined to be S*N*X, and the [N*X*K+n*X+R]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the n+1th LP-WUS, where 0≤K≤S-1, 0≤n≤N-1, 1≤R≤X, and K, n, and R are integers.

[0065] In an optional manner, if the first mode is mode 3, the number of listening opportunities in the first time period is determined to be S*N*X, and the [R*N*S+N*K+n]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the nth LP-WUS, where 0≤K≤S-1, 1≤n≤N, 0≤R≤X-1, and K, n, and R are integers.

[0066] In an optional manner, if the first mode is mode 4, the number of listening opportunities in the first time period is determined to be S*N*X, and the [n*S*X+R*S+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the n+1th LP-WUS, where 1≤K≤S, 0≤n≤N-1, 0≤R≤X-1, and K, n, and R are integers.

[0067] In an optional manner, if the first mode is mode 5, the number of listening opportunities in the first time period is determined to be S*N*X, and the [R*N*S+S*n+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the n+1th LP-WUS, where 1≤K≤S, 0≤n≤N-1, 0≤R≤X-1, and K, n, and R are integers.

[0068] In an optional manner, the first indication information and / or the second indication information is carried by one of the following signalings:

[0069] DCI, RRC signaling, MAC-CE, SIB, LP-WUS signaling, or LP-SS signaling.

[0070] In a third aspect, an embodiment of the present application provides a communication device, which may be a terminal device or a network device. The communication device has the functions of implementing the first or second aspect above. For example, the communication device includes modules, units, or means corresponding to the steps involved in the first or second aspect above. The functions, units, or means may be implemented through software or hardware, or the corresponding software implementation may be executed by hardware.

[0071] In one possible design, the communication device includes a processing unit and a transceiver unit, wherein the transceiver unit can be used to send and receive signals to achieve communication between the communication device and other devices; the processing unit can be used to perform some internal operations of the communication device. The transceiver unit can be called an input / output unit, a communication unit, etc., and the transceiver unit can be a transceiver; the processing unit can be a processor. When the communication device is a module (such as a chip) in a communication device, the transceiver unit can be an input / output interface, an input / output circuit, or an input / output pin, etc., and can also be called an interface, a communication interface, or an interface circuit, etc.; the processing unit can be a processor, a processing circuit, or a logic circuit, etc.

[0072] In another possible design, the communication device includes a processor and may also include a transceiver, the transceiver is used to send and receive signals, and the processor executes program instructions to complete the method in any possible design or implementation of the first aspect or the second aspect above. The communication device may also include one or more memories, the memories are used to couple with the processor, and the memories can store the necessary computer programs or instructions for implementing the functions involved in the first aspect or the second aspect above. The processor can execute the computer program or instructions stored in the memory, and when the computer program or instructions are executed, the communication device implements the method in any possible design or implementation of the first aspect or the second aspect above.

[0073] In another possible design, the communication device includes a processor, which can be coupled to a memory. The memory can store the necessary computer programs or instructions for implementing the functions of the first or second aspect. The processor can execute the computer programs or instructions stored in the memory. When the computer programs or instructions are executed, the communication device implements the method of any possible design or implementation of the first or second aspect.

[0074] In another possible design, the communication device includes a processor and an interface circuit, wherein the processor is used to communicate with other devices through the interface circuit and execute the method in any possible design or implementation of the first aspect or the second aspect above.

[0075] It can be understood that in the third aspect above, the processor can be implemented by hardware or by software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor can be a general-purpose processor, which is implemented by reading the software code stored in the memory. In addition, the above processors can be one or more, and the memories can be one or more. The memory can be integrated with the processor, or the memory and the processor can be set separately. In the specific implementation process, the memory can be integrated with the processor on the same chip, or can be set on different chips respectively. The embodiment of the present application does not limit the type of memory and the setting method of the memory and the processor.

[0076] In a fourth aspect, an embodiment of the present application provides a communication device configured to execute the method of any one of the first aspect or the second aspect.

[0077] In a fifth aspect, an embodiment of the present application provides a communication system, which includes the above-mentioned first communication device and second communication device.

[0078] In a sixth aspect, the present application provides a chip system, which includes a processor and may also include a memory, for implementing the method described in the first or second aspect. The chip system may be composed of a chip, or may include a chip and other discrete devices.

[0079] In the seventh aspect, the present application also provides a computer-readable storage medium, which can be a volatile storage medium or a non-volatile storage medium. The computer-readable storage medium stores computer-readable instructions. When the computer-readable instructions are run on a computer, the computer executes the method in the first aspect or the second aspect.

[0080] In an eighth aspect, the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the methods of the embodiments of the first or second aspect above.

[0081] For the technical effects that can be achieved in the above-mentioned second to eighth aspects, please refer to the description of the technical effects that can be achieved by the corresponding possible design schemes in the above-mentioned first aspect, and this application will not repeat them here. BRIEF DESCRIPTION OF THE DRAWINGS

[0082] FIG1 shows a schematic diagram of a communication system provided by an embodiment of the present application;

[0083] FIG2 shows a schematic diagram of a low-power wake-up circuit provided in an embodiment of the present application;

[0084] FIG3 shows a flow chart of a communication method provided in an embodiment of the present application;

[0085] FIG4A shows a schematic diagram of a first mode provided by an embodiment of the present application;

[0086] FIG4B shows a schematic diagram of a first mode provided by an embodiment of the present application;

[0087] FIG4C shows a schematic diagram of a first mode provided by an embodiment of the present application;

[0088] FIG4D shows a schematic diagram of a first mode provided by an embodiment of the present application;

[0089] FIG4E shows a schematic diagram of a first mode provided by an embodiment of the present application;

[0090] FIG5 shows a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0091] FIG6 shows a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0092] FIG7 shows a schematic structural diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0093] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings. The specific operating methods in the method embodiments can also be applied to device embodiments or system embodiments. In the description of the present application, unless otherwise specified, "multiple" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. For example, A / B means: A or B. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c means: a, b, c, a and b, a and c, b and c, or a, b and c, where a, b, c can be single or multiple.

[0094] In the embodiments of this application, ordinal numbers such as "first" and "second" are used to distinguish multiple objects and are not used to limit the size, content, order, timing, priority, or importance of multiple objects. In addition, the numbering of steps in the various embodiments introduced in this application is only to distinguish different steps and is not used to define the order between steps. For example, S301 can occur before S302, or after S302, or at the same time as S302.

[0095] The technical solutions provided in the embodiments of the present application can be applied to 5G systems, or to future communication systems or other similar communication systems. In addition, the technical solutions provided in the embodiments of the present application can be applied to cellular links, public land mobile networks (PLMN), machine to machine (M2M) networks, Internet of Things (IoT) networks or other networks. It can also be applied to links between devices, such as device to device (D2D) links. D2D links can also be called sidelinks, where sidelinks can also be called side links or side links, etc. In the embodiments of the present application, the above terms all refer to links established between devices of the same type, and their meanings are the same. The so-called devices of the same type can be links between terminal devices, links between base stations, links between relay nodes, etc., and the embodiments of the present application do not limit this.

[0096] Figure 1 is a schematic diagram of a wireless communication system applicable to the present application. As shown in Figure 1 , the wireless communication system may include at least one network device, such as network device 111, network device 112, and network device 113. The wireless communication system may also include at least one terminal device, such as terminal device 121, terminal device 122, terminal device 123, terminal device 124, terminal device 125, terminal device 126, and terminal device 127. The communication method between network devices may be backhaul, such as the communication method between network device 111 and network device 112, or the communication method between network device 111 and network device 113. The communication method between network devices and terminal devices may be enhanced mobile broadband (eMBB), such as the communication method between network device 112 and terminal device 121. The communication method between network devices and terminal devices may be multi-site transmission, such as the communication method between network devices 112, network device 113, and terminal device 124. The communication method between terminal devices may be D2D. For example, the communication method between terminal device 122 and terminal device 125.

[0097] A terminal device may be a device capable of receiving scheduling and instruction information from network devices, providing voice and / or data connectivity to a user, or a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem. The terminal device may communicate with one or more core networks or the Internet via a radio access network (RAN). For example, the terminal device may be a portable, pocket-sized, handheld, computer-built-in, or vehicle-mounted mobile device. The terminal device may also be referred to as a subscriber unit (SU), subscriber station (SS), mobile station (MS), remote station (RS), access point (AP), remote terminal (RTE), access terminal (AT), user agent (UA), customer premises equipment (CPE), terminal, user equipment (UE), mobile terminal (MT), etc. The terminal device may also be a wearable device. The terminal device may also be a device in a next-generation communication system. For example, terminal devices in 5G networks or terminal devices in future evolved PLMN networks, terminal devices in NR communication systems, etc.Currently, terminal devices may include: mobile phones, tablet computers, laptop computers, PDAs, customer-premises equipment (CPE), mobile internet devices (MIDs), wearable devices (such as smart watches, smart bracelets, and pedometers), in-vehicle equipment (such as cars, bicycles, electric vehicles, airplanes, ships, trains, and high-speed trains), virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, smart home devices (such as refrigerators, televisions, air conditioners, and electric meters), intelligent robots, workshop equipment, wireless terminals in self-driving vehicles, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and flying devices (such as intelligent robots, hot air balloons, drones, and airplanes). The terminal device may also be other devices with terminal functions. For example, the terminal device may also be a device that serves as a terminal in D2D communication.

[0098] A network device is an entity on the network side that transmits or receives signals. For example, a transmission reception point (TRP) or a gNB. A network device can be an AP in a wireless local area network (WLAN), a base transceiver station (BTS) in a global system for mobile communication (GSM) or code division multiple access (CDMA), a base station (nodeB, NB) in wideband code division multiple access (WCDMA), or an evolved node B (eNB or eNodeB) in long-term evolution (LTE). A network device can also be a relay station or access point, or a network device in an in-vehicle device, wearable device, or 5G network, or a network device in a future evolved PLMN, or a device such as a gNodeB / gNB in ​​a NR system. In some deployments, a gNB can include a CU and a DU. The CU implements some of the gNB's functions, and the DU implements some of the gNB's functions. For example, the CU is responsible for processing non-real-time protocols and services. For example, it implements radio resource control (RRC), service data adaptation protocol (SDAP), and packet data convergence protocol (PDCP) layer functions. The DU is responsible for processing physical layer protocols and real-time services. For example, it implements functions of the radio link control (RLC), medium access control (MAC), and physical (PHY) layers. The gNB may also include an active antenna unit (AAU). The AAU implements some physical layer processing functions, RF processing, and active antenna-related functions. Because information implemented in the RRC layer ultimately becomes information in the PHY layer, or is converted from information in the PHY layer, in this architecture, higher-layer signaling (such as RRC layer signaling) can also be considered to be sent by the DU, or by both the DU and the AAU. It is understood that a network device can be a device that includes one or more of a CU node, a DU node, or an AAU node.In addition, the CU may be a network device in an access network (radio access network, RAN), and the CU may be a network device in a core network (core network, CN), which is not limited in this application. In addition, in an embodiment of the present application, the network device provides services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell may be a cell corresponding to a network device (for example, a base station). The cell may belong to a macro base station or a base station corresponding to a small cell. For example, the small cell may include: a metro cell, a micro cell, a pico cell, a femto cell, etc. Since the small cell has the characteristics of small coverage and low transmission power, the small cell can provide high-speed data transmission services. In addition, in other possible cases, the network device may be other devices that provide wireless communication functions for the terminal device. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device. For example, in an open radio access network (ORAN) system, CU may also be referred to as O-CU (open CU), DU may also be referred to as O-DU, CU-CP may also be referred to as O-CU-CP, CU-UP may also be referred to as O-CU-UP, and RU may also be referred to as O-RU. For the convenience of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples for description. Any of the CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0099] When the UE is in the RRC idle or inactive state, it calculates the location of the paging frame (PF) and the paging occasion (PO) within a PF based on the UE's UE identity (ID) to receive paging within the PO. Whether the UE is performing the above-mentioned paging reception process in the RRC idle or inactive state, or receiving data in the RRC connected state, it uses the same receiving module, which is called the main radio (MR). When a UE operates in the MR, it can also be described or understood as operating on the 5G NR main link.

[0100] In order to further reduce power consumption, the UE can also use a circuit different from the MR to receive signals, such as LP-WUR (wherein, LP-WUR can be called a low-power wake-up receiver, auxiliary receiver, low-power receiver, low-power receiver, low-power wake-up receiver, etc., which is not specifically limited here). The LP-WUR can be implemented by a circuit or chip with a simple structure, and its power consumption is low. Among them, the LP-WUR is used to receive a low-power wake-up signal (LP-WUS) from a network device. When the UE detects the LP-WUS or receives the LP-WUS and demodulates the wake-up indication information according to the information carried in the LP-WUS, the UE wakes up the MR that is turned off (or in sleep state) in the UE. Among them, LP-WUS can be used to wake up at least one UE or at least one group of UEs. In order to reduce the power consumption of the LP-WUR circuit, the LP-WUS signal is usually modulated using some simple modulation methods such as on-off keying (OOK); accordingly, the LP-WUR in the UE uses envelope detection to receive the LP-WUS. The UE using the LP-WUR to receive the wake-up signal can be called working on the WUR / LR link, or the WUR / LR is in a working state.

[0101] For example, when the UE is turned on, it can first search for the signal of the NR main link in the MR. If the signal of the NR main link can be found, it can reside in the NR main link. If the signal of the NR main link indicates the configuration information of the LP-WUS, the UE can further search for the LP-WUS in the LP-WUR according to the configuration information of the LP-WUS. If the LP-WUS can be found and the signal quality of the LP-WUS is good, the UE can work in the LP-WUR. Alternatively, when the UE is turned on, it can first search for the signal of the NR main link in the MR. If the signal of the NR main link cannot be found, it can search for the LP-WUS according to the configuration information preset in the UE. If the LP-WUS can be found and the signal quality of the LP-WUS is good, the UE can work in the LP-WUR.

[0102] Refer to Figure 2, which is a schematic diagram of the working mode of LP-WUR and MR. In Figure 2, LP-WUR is used as an example of a low-power circuit. After the UE detects LP-WUS after the low-power circuit is working, it can trigger the MR to open to receive paging or initiate random access, etc. If the UE does not detect LP-WUS, and the UE is within the coverage of LP-WUS and the UE does not report processing information to the network device, the UE may not trigger the MR to open, and the MR can continue to be closed (or continue to sleep), thereby reducing the working time of the MR and saving the power consumption of the UE.

[0103] LP-WUR monitors LP-WUS in LP-WUS occasions (LOs), and each LO includes one or more LP-WUS monitoring occasions (MOs). The UE can monitor LP-WUS in each MO. LP-WUS of different beam directions and different types of LP-WUS can be transmitted in different MOs. Usually, different beam directions correspond to different synchronization signals, wherein the synchronization signal can be SSB or LP-SS. For example, beam direction 1 corresponds to SSB1, and beam direction 2 corresponds to SSB2. Different beam directions may also correspond to multiple synchronization signals, for example, beam direction 1 corresponds to SSB1, beam direction 1 also corresponds to SSB2, etc. This is only an example description, and the correspondence between beam directions and synchronization signals is not specifically limited. In the present application, when the synchronization signal is SSB, the number of SSBs in the synchronization signal set (such as SSB burst) can be 1, 4, 8, etc., wherein the number of SSBs is 1 and corresponds to one SSB index by default. This is only an example description, and is not specifically limited. Among them, the synchronization signal set can also be called a synchronization signal set, and the synchronization signal set and synchronization signal set mentioned below can be understood equivalently.

[0104] In addition, in order to improve signal coverage, the same LP-WUS may be transmitted repeatedly multiple times in different MOs. In order to determine the content of different LP-WUS, the UE usually needs to monitor all MOs in a LO to determine whether to wake up the UE's MR. This method may cause the MR to wake up untimely, affecting the transmission of services. In addition, the UE determines the content of different LP-WUS after monitoring all MOs in the LO. However, in actual applications, the UE can determine the content of different LP-WUS by monitoring the first few MOs in the LO, and the UE can successfully demodulate the content of the LP-WUS and determine that the LP-WUS content corresponding to other MOs in the LO is a repetition of the first few MOs. Monitoring all MOs in the LO will obviously waste the UE's power consumption.

[0105] Based on this, the present application provides a communication method, which clarifies the mapping method of MO in LO to avoid the situation where it is necessary to monitor all MOs in a LO before determining whether to wake up the MR of the UE. The technical solution of the present application is described in detail with reference to a specific method embodiment in conjunction with Figure 3. It should be noted that Figure 3 is a schematic flow chart of an embodiment of the method of the present application, which shows the detailed communication steps or operations of the method, but these steps or operations are only examples. The embodiment of the present application can also perform other operations or variations of the various operations in Figure 3. In addition, the various steps in Figure 3 can be executed in a different order from that presented in Figure 3, and it may not be necessary to execute all the operations in Figure 3.

[0106] This method involves communication interaction between a first communication device and a second communication device. The first communication device may be a terminal device, a chip, or a circuit. Optionally, the chip may be a chip of a terminal device. This application does not limit this. Optionally, the circuit may be a circuit of a terminal device. This application does not limit this. The second communication device may be a network device, a chip, or a circuit. Optionally, the chip may be a chip of a network device. This application does not limit this. Optionally, the circuit may be a circuit of a network device. This application does not limit this. The following description uses the example of the first communication device being a terminal device and the second communication device being a network device.

[0107] The method can be applied to 4G systems, such as long term evolution (LTE) systems, or to 5G systems, such as NR systems, or to next generation mobile communication systems or other similar communication systems, such as 6G systems, etc., without limitation. In addition, the technical solutions provided in the embodiments of the present application can also be applied to V2X scenarios, such as NR-V2X scenarios. For example, the embodiments of the present application can be used in fields such as factory manufacturing, whole-house intelligence, intelligent driving, assisted driving, intelligent connected vehicles, or indoor commercial scenarios.

[0108] This application does not limit the number of terminal devices and network devices. This is only an example. For example, the terminal devices are UE1, UE2, and UE3, and the network device is gNB1. Here, one terminal device and one network device are used as an example for explanation. In FIG3 , the first communication device is used as an example to illustrate the first terminal device, and the second communication device is used as an example to illustrate the network device. The method is performed as follows:

[0109] Step 301A: The first terminal device determines a first mode of a monitoring opportunity within a first time period, where the first time period is a transmission opportunity of the LP-WUS, and the monitoring opportunity is a monitoring opportunity of the LP-WUS.

[0110] Step 301B: The network device determines a first mode of monitoring opportunities within a first time period.

[0111] The execution order of step 301A and step 301B is not specifically limited here. They can be executed simultaneously, or step 301A can be executed first and then step 301B, or step 301B can be executed first and then step 301A. This application does not specifically limit this here.

[0112] It should be noted that the first time period (also referred to as the first time window, the first time unit, etc., which are not specifically limited here) is usually one or more LOs, wherein one LO may include one or more LP-WUS listening opportunities (ie, MOs). Usually, the first time period is within an LP-WUS paging cycle / paging cycle / DRX cycle / LP-WUS listening cycle, and a first time period includes one LO. This is only an example and is not specifically limited. For example, the first time period includes one LO, and the first time period appears periodically, then the LOs in multiple first time periods also appear periodically. In addition, the MO may be the MO of the first terminal device or the MO of other terminal devices, which is not specifically limited in this application.

[0113] Furthermore, if the first time period includes multiple LOs, these multiple LOs typically occur periodically. For example, if the first time period includes three LOs with a 3µs period, the second LO starts 3µs after the end of the first LO, and the third LO starts 3µs after the end of the second LO. Furthermore, the duration of multiple LOs within the first time period is typically the same.

[0114] The first time period is the transmission timing of the LP-WUS. With respect to the first terminal device, the first time period can be called the reception timing of the LP-WUS. With respect to the network device, the first time period can be called the sending timing of the LP-WUS.

[0115] It should also be noted that the first mode (pattern) can also be called a first type (type), a first pattern, a first pattern, a first sample, a first image structure, a first arrangement, or a first mapping method, etc., which is not specifically limited here.

[0116] The above-mentioned first mode can be pre-configured for the first terminal device and the network device. Specifically, the configuration device (for example, a network device or a core network device, etc.) can pre-configure the first mode based on the characteristics of the LP-WUS (for example, the amount of information carried, the number of repeated transmissions, the transmission beam, etc.). In actual application, the first terminal device or the network device can pre-store the first mode and directly perform the following step 302 or step 303 based on the first mode. In addition, the configuration device (for example, a network device or a core network device, etc.) can configure multiple types of first modes. In actual application, the first terminal device or the network device can pre-store multiple types of first modes, and the network device sends an indication information to the first terminal device, where the indication information indicates the type of the first mode. After the first terminal device or the network device determines the type of the first mode, it directly performs the following step 302 or step 303 based on the first mode. This is only an example description and is not specifically limited. In addition, the above-mentioned first mode can also be received by the first terminal device from the network device, such as the first terminal device receives the first indication information from the network device, the first indication information is used to indicate the first mode, and the first terminal device determines the first mode based on the first indication information. Based on this, the first terminal device does not need to store the pre-configured first mode, which can save storage space of the first terminal device. The method for obtaining the first mode is not specifically limited here.

[0117] The first mode described above is associated with one or more of the following parameters:

[0118] Parameter 1: number of synchronization signals transmitted in the synchronization signal set, the type of the synchronization signal is SSB and / or LP-SS;

[0119] Parameter 2: The number of LP-WUS types, where LP-WUS is used to carry the identifier of at least one wake-up terminal device or the identifier of the wake-up terminal device group, and different types of LP-WUS carry different identifiers of the wake-up terminal device or the wake-up terminal device group.

[0120] Among them, the number of transmissions of synchronization signals in a synchronization signal set (such as an SSB burst or an LP-SS burst) is the number of synchronization signals actually transmitted by the network device to the terminal device. For example, the number of candidate SSBs in an SSB burst (that is, the maximum number of SSBs supported for transmission) is 4, but the number of SSBs actually transmitted is 3, then the number of transmissions of synchronization signals in the synchronization signal set in this application is 3. Usually, the synchronization signal in the synchronization signal set can be indicated by a bitmap, where 1 indicates that the SSB is transmitted and 0 indicates that the SSB is not transmitted. For example, the number of candidate SSBs in the SSB burst is 4 and the bitmap is 1010, so it can be seen that the SSB is transmitted at the first candidate position and the third candidate position. In addition, in some special cases, when the terminal device and the network device synchronize the time and frequency positions through the synchronization signal, SSB and LP-SS may be involved. Then the sum of the number of SSBs actually transmitted in the SSB burst and the number of LP-SS actually transmitted in the LP-SS burst can be used as the number of transmissions of synchronization signals in the synchronization signal set in this application. This is only an example and is not specifically limited here. In addition, in specific applications, the types of synchronization signals may include other types, which are not specifically limited here.

[0121] The type of LP-WUS is related to the specific information it carries. Different types of LP-WUS carry different information, or different types of LP-WUS carry different information. An LP-WUS can carry the identifiers of one or more terminal devices to be awakened, or the identifiers of one or more groups of terminal devices to be awakened. For example, if LP-WUS1 carries UE1 and LP-WUS2 carries UE2, then LP-WUS1 and LP-WUS2 are different LP-WUSs.

[0122] The identifier of the terminal device to be awakened can be a 5G temporary mobile subscription identifier (5G S-temporary mobile subscription identifier, 5G-S-TMSI), an international mobile subscriber identity (IMSI), a user permanent identifier (SUPI), a user hidden identifier (SUCI), a generic public subscription identifier (GPSI), a PEI (permanent equipment identifier), and can also be an identifier used to identify a terminal device or user equipment in a future next-generation network (for example, 6G, 7G, etc.). It can also be an identifier determined by an identification rule agreed upon by the terminal device and the network device, such as UE1 indicating a first terminal device, UE2 indicating a second terminal device, etc. This is only an example and is not specifically limited. The identifier of the terminal device group to be awakened can be an identifier of a large group including a large number of terminal devices, such as a group ID, or an identifier of a small group including a small number of terminals, such as a subgroup ID. For example, there are two companies in area A, namely Company 1 and Company 2, and Company 1 includes three parks, namely Park A, Park B and Park C. Among them, all terminal devices in company 1 can be divided into group 1, and all terminal devices in company 2 can be divided into group 2. Furthermore, the terminal devices in park A of company 1 can be divided into subgroup 1, the terminal devices in park B of company 1 can be divided into subgroup 2, and the terminal devices in park C of company 1 can be divided into subgroup 3.

[0123] In one embodiment, an LP-WUS may indicate the identifier of a terminal device to be awakened or the identifier of a terminal device group to be awakened. Assuming that the network device sends LP-WUS1 and LP-WUS2 to the first terminal device, LP-WUS1 indicates that the awakened terminal device is UE1, or LP-WUS1 indicates that the awakened terminal device group is subgroup1, and LP-WUS2 indicates that the awakened terminal device is UE2, or LP-WUS2 indicates that the awakened terminal device group is subgroup2, then the number of LP-WUS types is 2.

[0124] In another embodiment, one LP-WUS may indicate the identifiers of multiple awakened terminal devices or the identifiers of multiple awakened terminal device groups. Assume that the network device sends LP-WUS1 and LP-WUS2 to the first terminal device, and LP-WUS1 indicates that the awakened terminal devices are UE1 and UE3, or LP-WUS1 indicates that the awakened terminal device groups are subgroup1 and subgroup2, and LP-WUS2 indicates that the awakened terminal devices are UE2 and UE5, or LP-WUS2 indicates that the awakened terminal device groups are subgroup2 and subgroup3. In this case, the number of LP-WUS types is 2.

[0125] In another embodiment, LP-WUS can indicate the identifier of the awakened terminal device or the identifier of the awakened terminal device group through a bitmap, where 1 indicates carrying and 0 indicates not carrying. Assume that the network device sends LP-WUS1 and LP-WUS2 to the first terminal device, LP-WUS1 indicates through 1010101 that the awakened terminal devices are UE1, UE3, UE5 and UE7, or LP-WUS1 indicates through 1010101 that the awakened terminal device group is subgroup1, subgroup3, subgroup5 and subgroup7, LP-WUS2 indicates through 110 that the awakened terminal devices are UE1 and UE2, or LP-WUS2 indicates through 110 that the awakened terminal device group is subgroup1 and subgroup2, then the number of LP-WUS types is 2.

[0126] In the present application, the first mode is related to the number of transmissions of synchronization signals in the synchronization signal set and the number of types of LP-WUS. Based on this, the mapping relationship between the monitoring timing of LP-WUS and the synchronization signal and LP-WUS can be determined, so that the first terminal device can clearly understand how to monitor LP-WUS.

[0127] The first mode is not only related to the number of synchronization signal transmissions in the synchronization signal set and the number of LP-WUS types, but also to the number of repeated transmissions of the LP-WUS.

[0128] It should be noted that due to its simple modulation scheme, the LP-WUS signal has poor coverage and may require multiple repetitions to improve signal coverage. Therefore, the first mode is generally related to the number of LP-WUS retransmissions. Furthermore, it should be noted that an LP-WUS typically carries an identifier for waking up a terminal device, or an identifier for a group of terminal devices that are to be woken up. Therefore, when the LP-WUS is repeatedly transmitted, the identifier for the terminal device that is to be woken up, or the identifier for the group of terminal devices that are to be woken up, is also repeatedly transmitted.

[0129] In addition, it should be noted that usually the terminal device receives the synchronization signal first and then receives the LP-WUS.

[0130] Specifically, the first mode may include one or more of the following:

[0131] Mode 1: The monitoring opportunities corresponding to different LP-WUSs corresponding to the same synchronization signal are continuous.

[0132] It should be noted that the same synchronization signal can be understood as a synchronization signal with the same index. For example, if the synchronization signal is SSB, then the synchronization signal with index SSB1 is one synchronization signal, and the synchronization signal with index SSB2 is another synchronization signal. This is only an example. In addition, different LP-WUS refers to different types of LP-WUS or different types of LP-WUS. The different LP-WUS mentioned in the text can be understood equivalently and will not be repeated here. As shown in Figure 4A, an LO includes 9 MOs, of which SSB1 corresponds to subgroup1 to subgroup3, and subgroup1 to subgroup3 occupy consecutive MOs (MO1 to MO3), SSB2 corresponds to subgroup1 to subgroup3, and subgroup1 to subgroup3 occupy consecutive MOs (MO4 to MO6), and SSB3 corresponds to subgroup1 to subgroup3, and subgroup1 to subgroup3 occupy consecutive MOs (MO7 to MO9).

[0133] The first mode is Mode 1, and the number of listening opportunities in the first time period is S*N. The [N*K+n]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the nth type of LP-WUS. S is a first parameter indicating the number of synchronization signal transmissions in the synchronization signal set (or the number of sequence numbers of synchronization signals actually transmitted in the synchronization signal set, the number of candidate positions transmitted in the synchronization signal set, etc.), and N is a second parameter indicating the maximum number of different types of LP-WUS allowed to be transmitted in the first time period (or the maximum number of listening opportunities for sending different types of LP-WUS, the number of candidates for different types of LP-WUS in an LO, the number of candidate listening opportunities for different types of LP-WUS in an LO, the maximum number of different types of LP-WUS that may be simultaneously sent in an LO, etc.). 0≤K≤S-1 (or, K=0, ..., S-1), 1≤n≤N (or, n=1, ..., N), and S, N, K, and n are integers. Or the [N*(K-1)+n]th listening opportunity corresponds to the Kth transmitted synchronization signal and the nth LP-WUS, where 1≤K≤S (or, K=1,…,S), 1≤n≤N (or, n=1,…,N), and K and n are integers. As shown in Figure 4A, S=3, N=3. The first transmitted synchronization signal (i.e., SSB1 in Figure 4A) and the first type of LP-WUS correspond to the first MO. Since in Figure 4A, one LP-WUS can indicate the identifier of a terminal device group to be awakened, the first type of LP-WUS indicates the identifier of the terminal device group to be awakened carried by the LP-WUS (i.e., subgroup 1).

[0134] Mode 2: The monitoring opportunities corresponding to different LP-WUS corresponding to the same synchronization signal are continuous, and the monitoring opportunities corresponding to repeated transmission of the same LP-WUS are continuous.

[0135] As shown in Figure 4B, an LO includes 18 MOs, among which SSB1 corresponds to subgroup1 to subgroup3, and subgroup1 to subgroup3 repeatedly transmit and occupy consecutive MOs (MO1 to MO6); SSB2 corresponds to subgroup1 to subgroup3, and subgroup1 to subgroup3 repeatedly transmit and occupy consecutive MOs (MO7 to MO12); and SSB3 corresponds to subgroup1 to subgroup3, and subgroup1 to subgroup3 repeatedly transmit and occupy consecutive MOs (MO13 to MO18).

[0136] The first mode is mode 2, and the number of listening opportunities in the first time period is S*N*X, where S and N can be understood with reference to the description in mode 1 and are not repeated here. X is a first number, which indicates the number of identical LP-WUSs in the first time period (or the number of MOs of LP-WUSs associated with the same synchronization signal within an LO, and the LP-WUSs are associated with the same wake-up device identifier or wake-up device group identifier). The [N*X*K+n*X+R]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the n+1th LP-WUS, where 0≤K≤S-1 (or, K=0,…,S-1), 0≤n≤N-1 (or, n=0,…,N-1), 1≤R≤X (or, R=1,…,X), and X, K, n, and R are integers. Or the [N*X*(K-1)+(n-1)*X+R]th listening opportunity corresponds to the Kth transmitted synchronization signal and the nth LP-WUS, where 1≤K≤S (or, K=1,…,S), 1≤n≤N (or, n=1,…,N), 1≤R≤X, and K, n, and R are integers. As shown in Figure 4B, S=3, N=3, and X=2. The first transmitted synchronization signal (i.e., SSB1 in Figure 4B) and the second type of LP-WUS correspond to the third MO (the first transmission of the second type of LP-WUS) or the fourth MO (the second transmission of the second type of LP-WUS). Since in Figure 4B, one LP-WUS can indicate the identifier of a terminal device group to be awakened, the second type of LP-WUS indicates the identifier of the terminal device group to be awakened carried by the LP-WUS (i.e., subgroup 2).

[0137] Mode 3: The monitoring opportunities corresponding to different LP-WUS corresponding to the same synchronization signal are continuous, and the monitoring opportunities corresponding to repeated transmission of the same LP-WUS are discontinuous.

[0138] As shown in Figure 4C, an LO includes 18 MOs, of which SSB1 corresponds to subgroups 1 to 3, which occupy consecutive MOs (MO1 to MO3), SSB2 corresponds to subgroups 1 to 3, which occupy consecutive MOs (MO4 to MO6), and SSB3 corresponds to subgroups 1 to 3, which occupy consecutive MOs (MO7 to MO9). After repeated transmission, SSB1 corresponds to subgroups 1 to 3, which occupy consecutive MOs (MO10 to MO12), SSB2 corresponds to subgroups 1 to 3, which occupy consecutive MOs (MO13 to MO15), and SSB3 corresponds to subgroups 1 to 3, which occupy consecutive MOs (MO16 to MO18).

[0139] The first mode is Mode 3, and the number of listening opportunities in the first time period is S*N*X, where S and N can be understood with reference to the description in Mode 1, and X can be understood with reference to the description in Mode 2, which are not repeated here. The [R*N*S+N*K+n]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the nth LP-WUS, where 0≤K≤S-1 (or, K=0,…,S-1), 1≤n≤N (or, n=1,…,N), 0≤R≤X-1 (or, R=0,…,X-1), and K, n, and R are integers. Alternatively, the [R*N*S+N*(K-1)+n]th listening opportunity corresponds to the Kth transmitted synchronization signal and the nth type of LP-WUS, where 1≤K≤S (or, K=1, ..., S), 1≤n≤N (or, n=1, ..., N), 0≤R≤X-1 (or, R=0, ..., X-1), and K, n, and R are integers. As shown in FIG4C , S=3, N=3, and X=2, the second transmitted synchronization signal (i.e., SSB2 in FIG4C ) and the second type of LP-WUS correspond to the 5th MO (the first transmission of the second type of LP-WUS) or the 14th MO (the second transmission of the second type of LP-WUS). Since, in FIG4C , one LP-WUS can indicate the identifier of a terminal device group to be awakened, the second type of LP-WUS indicates the identifier of the terminal device group to be awakened carried by the LP-WUS (i.e., subgroup 2).

[0140] Mode 4: The monitoring opportunities corresponding to different synchronization signals corresponding to the same LP-WUS are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are continuous.

[0141] As shown in Figure 4D, an LO includes 12 MOs, among which subgroup1 corresponds to SSB1~SSB3, SSB1~SSB3 occupy consecutive MOs (MO1~MO3). After repeated transmission, subgroup1 corresponds to SSB1~SSB3, SSB1~SSB3 occupy consecutive MOs (MO4~MO6), subgroup2 corresponds to SSB1~SSB3, SSB1~SSB3 occupy consecutive MOs (MO7~MO9). After repeated transmission, subgroup1 corresponds to SSB1~SSB3, SSB1~SSB3 occupy consecutive MOs (MO10~MO12).

[0142] The first mode is Mode 4, and the number of listening opportunities in the first time period is S*N*X, where S and N can be understood with reference to the description in Mode 1, and X can be understood with reference to the description in Mode 2, which are not repeated here. The [n*S*X+R*S+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the n+1th LP-WUS, where 1≤K≤S (or, K=1,…,S), 0≤n≤N-1 (or, n=0,…,N-1), 0≤R≤X-1 (or, R=0,…,X-1), and K, n, and R are integers. Alternatively, the [(n-1)*S*X+R*S+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the nth type of LP-WUS, where 1≤K≤S (or, K=1,…,S), 1≤n≤N (or, n=1,…,N), 0≤R≤X-1 (or, R=0,…,X-1), and K, n, and R are integers. As shown in FIG4D , S=3, N=2, and X=2, the third transmitted synchronization signal (i.e., SSB3 in FIG4D ) and the first type of LP-WUS correspond to the third MO (the first transmission of the first type of LP-WUS) or the sixth MO (the second transmission of the first type of LP-WUS). Since, in FIG4D , one LP-WUS can indicate the identifier of a terminal device group to be awakened, the first type of LP-WUS indicates the identifier of the terminal device group to be awakened carried by the LP-WUS (i.e., subgroup 1).

[0143] Mode 5: The monitoring opportunities corresponding to different synchronization signals corresponding to the same LP-WUS are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are discontinuous.

[0144] As shown in Figure 4E, an LO includes 12 MOs, among which subgroup1 corresponds to SSB1~SSB3, SSB1~SSB3 occupy consecutive MOs (MO1~MO3), subgroup2 corresponds to SSB1~SSB3, SSB1~SSB3 occupy consecutive MOs (MO4~MO6), after repeated transmission, subgroup1 corresponds to SSB1~SSB3, SSB1~SSB3 occupy consecutive MOs (MO7~MO9), subgroup2 corresponds to SSB1~SSB3, SSB1~SSB3 occupy consecutive MOs (MO10~MO12).

[0145] The first mode is mode 5, and the number of listening opportunities in the first time period is S*N*X, where S and N can be understood with reference to the description in mode 1, and X can be understood with reference to the description in mode 2, which are not repeated here. The [R*N*S+S*n+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the n+1th LP-WUS, where 1≤K≤S (or, K=1,…,S), 0≤n≤N-1 (or, n=0,…,N-1), 0≤R≤X-1 (or, R=0,…,X-1), and K, n, and R are integers. Alternatively, the [R*N*S+S*(n-1)+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the nth type of LP-WUS, where 1≤K≤S (or, K=1,…,S), 1≤n≤N (or, n=1,…,N), 0≤R≤X-1 (or, R=0,…,X-1), and K, n, and R are positive integers. As shown in FIG4E , S=3, N=2, and X=2, the third transmitted synchronization signal (i.e., SSB3 in FIG4E ) and the first type of LP-WUS correspond to the third MO (the first transmission of the first type of LP-WUS) or the ninth MO (the second transmission of the first type of LP-WUS). Since, in FIG4D , one LP-WUS can indicate the identifier of a terminal device group to be awakened, the first type of LP-WUS indicates the identifier of the terminal device group to be awakened carried by the LP-WUS (i.e., subgroup 1).

[0146] In addition, the above-mentioned K-th transmitted synchronization signal is not associated with SSBK. The index of SSB corresponding to the K-th transmitted synchronization signal is determined by the network device scheduling. This application does not specifically limit it here. For example, SSB1 corresponding to the third transmitted synchronization signal is only illustrated here as an example.

[0147] Figures 4A to 4E above illustrate only one LO. If there are three LOs, to ensure fair scheduling of the LOs, the order of the SSBs for the second LO in Figure 4A can be SSB2, SSB1, SSB3, and the order of the SSBs for the third LO can be SSB3, SSB2, SSB1. This is for illustrative purposes only.

[0148] It should be noted that the network device also sends second indication information to the first terminal device, where the second indication information is used to indicate configuration parameters within the first time period to clarify the values ​​of N, S, and X. The configuration parameters include at least one of the following:

[0149] The first parameter S, the second parameter N and the third parameter X; wherein, S and N can be understood with reference to the description in mode 1, and X can be understood with reference to the description in mode 2, which will not be repeated here.

[0150] It should be noted that if a parameter is not included in the configuration parameters, the default value of the parameter is 1. For example, the configuration parameters include: S=3, N=2, then the default value is X=1; the configuration parameters include: S=3, X=2, then the default value is N=1; the configuration parameters include: S=3, then the default value is N=1, X=1. This is only an example. In addition, the above-mentioned N, S and N can be indicated by the same signaling or by different signaling, and this application does not specifically limit this. For example, N and S are indicated by SIB1, X is indicated by SIB2, or N is indicated by one SIB1 and S is indicated by another SIB1. This is only an example and is not specifically limited.

[0151] The first indication information and / or the second indication information mentioned above may be carried by one of the following signalings:

[0152] DCI, RRC signaling, MAC CE, SIB, LP-WUS signaling, or LP-SS signaling.

[0153] Step 302: The network device sends an LP-WUS at a monitoring opportunity according to the first mode.

[0154] Step 303: The first terminal device determines a monitoring timing of the first terminal device according to the first mode.

[0155] Specifically, after receiving the second indication information to determine the configuration parameters, the first terminal may also determine the monitoring timing of the first terminal device according to the first mode and the second indication information.

[0156] Specifically, at least one LP-WUS is received during the first terminal device's listening opportunity, waking up the first terminal device. Referring to Figure 4B above, if subgroup 1 includes the first terminal device, the first terminal device can monitor MO1-MO6 and receive the LP-WUS containing subgroup 1, and then stop monitoring MO7-MO12. This further reduces the first terminal device's power consumption. Upon receiving an LP-WUS, the first terminal device can be woken up promptly, improving data processing efficiency and ensuring service transmission continuity.

[0157] In addition, after waking up the first terminal device, it does not monitor the LP-WUS. Not monitoring the LP-WUS can be understood as not processing the LP-WUS sent by the network device, or not receiving the LP-WUS from the network device. This can save power consumption of the first terminal device.

[0158] In this application, after the first terminal device obtains the first mode of monitoring timing within the first time period, it can determine the monitoring timing of the first terminal device to monitor LP-WUS based on the first mode. Based on this, the first terminal device can clearly know how to monitor LP-WUS, and thus ensure that the first terminal device is awakened in time, improve data processing efficiency, and ensure the continuity of service transmission.

[0159] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of device interaction. It is understandable that, in order to implement the above functions, each device may include a hardware structure and / or software module that performs each function. Those skilled in the art should easily appreciate that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software driven hardware manner depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0160] In the embodiments of the present application, the functional units of the device can be divided according to the above method examples. For example, each functional unit can be divided according to each function, or two or more functions can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or software functional units.

[0161] In the case of an integrated unit, Figure 5 shows a possible exemplary block diagram of a communication device involved in an embodiment of the present application. As shown in Figure 5, the communication device 500 may include: a processing unit 501 and a transceiver unit 502. The processing unit 501 is used to control and manage the operations of the communication device 500. The transceiver unit 502 is used to support communication between the communication device 500 and other devices. Optionally, the transceiver unit 502 may include a receiving unit and / or a transmitting unit, respectively, for performing receiving and transmitting operations. Optionally, the communication device 500 may also include a storage unit for storing program code and / or data of the communication device 500. The transceiver unit may be referred to as an input / output unit, a communication unit, etc., and the transceiver unit may be a transceiver; the processing unit may be a processor. When the communication device is a module (such as a chip) in a communication device, the transceiver unit may be an input / output interface, an input / output circuit, or an input / output pin, etc., and may also be referred to as an interface, a communication interface, or an interface circuit, etc.; the processing unit may be a processor, a processing circuit, or a logic circuit, etc. Specifically, the communication device may be the above-mentioned terminal device, network device, etc.

[0162] In one embodiment, the communication device 500 is a terminal device, and the processing unit 501 is used to determine a first mode of a listening opportunity within a first time period, where the first time period is a transmission opportunity of the LP-WUS, and the listening opportunity is a listening opportunity of the LP-WUS; the listening opportunity of the first terminal device is determined according to the first mode.

[0163] In an optional manner, the first mode is associated with the following two parameters:

[0164] The number of transmission synchronization signals in the synchronization signal set and the number of LP-WUS types; wherein the type of synchronization signal is SSB, and / or LP-SS, LP-WUS is used to carry the identifier of at least one wake-up terminal device or the identifier of the wake-up terminal device group, and the identifiers of the wake-up terminal devices or the wake-up terminal device groups carried by different types of LP-WUS are different.

[0165] In an optional manner, the first mode is also related to the number of repeated transmissions of the LP-WUS.

[0166] In an optional manner, the first mode includes one or more of the following:

[0167] Mode 1: The monitoring opportunities corresponding to different LP-WUSs corresponding to the same synchronization signal are continuous;

[0168] Mode 2: The monitoring opportunities corresponding to different LP-WUS corresponding to the same synchronization signal are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are continuous;

[0169] Mode 3: The monitoring opportunities corresponding to different LP-WUS corresponding to the same synchronization signal are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are discontinuous;

[0170] Mode 4: The monitoring opportunities corresponding to different synchronization signals corresponding to the same LP-WUS are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are continuous;

[0171] Mode 5: The monitoring opportunities corresponding to different synchronization signals corresponding to the same LP-WUS are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are discontinuous.

[0172] In an optional manner, the transceiver unit 502 is configured to receive first indication information, where the first indication information is configured to indicate a first mode; and the processing unit 501 is configured to determine a first mode of monitoring opportunities within a first time period according to the first indication information.

[0173] In an optional manner, the transceiver unit 502 is further configured to receive second indication information, where the second indication information is used to indicate configuration parameters within the first time period.

[0174] In an optional manner, the configuration parameters include at least one of the following:

[0175] A first parameter S, a second parameter N, and a third parameter X; wherein S indicates the number of transmissions of synchronization signals in the synchronization signal set, N indicates the maximum number of different LP-WUSs allowed to be transmitted in the first time period, X is a first number, the first number indicates the number of identical LP-WUSs in the first time period, and S, N, and X are integers.

[0176] In an optional manner, the processing unit 501 is further configured to determine a monitoring timing for the first terminal device to monitor the LP-WUS according to the first mode and the second indication information.

[0177] In an optional manner, if the first mode is mode 1, the number of listening opportunities in the first time period is determined to be S*N, and the [N*K+n]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the nth LP-WUS, where 0≤K≤S-1, 1≤n≤N, and K and n are integers.

[0178] In an optional manner, if the first mode is mode 2, the number of listening opportunities in the first time period is determined to be S*N*X, and the [N*X*K+n+*X+R]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the n+1th LP-WUS, where 0≤K≤S-1, 0≤n≤N-1, 1≤R≤X, and K, n, and R are integers.

[0179] In an optional manner, if the first mode is mode 3, the number of listening opportunities in the first time period is determined to be S*N*X, and the [R*N*S+N*K+n]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the nth LP-WUS, where 0≤K≤S-1, 1≤n≤N, 0≤R≤X-1, and K, n, and R are integers.

[0180] In an optional manner, if the first mode is mode 4, the number of listening opportunities in the first time period is determined to be S*N*X, and the [n*S*X+R*S+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the n+1th LP-WUS, where 1≤K≤S, 0≤n≤N-1, 0≤R≤X-1, and K, n, and R are integers.

[0181] In an optional manner, if the first mode is mode 5, the number of listening opportunities in the first time period is determined to be S*N*X, and the [R*N*S+S*n+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the n+1th LP-WUS, where 1≤K≤S, 0≤n≤N-1, 0≤R≤X-1, and K, n, and R are integers.

[0182] In an optional manner, the transceiver unit 502 is further configured to receive at least one LP-WUS within a monitoring opportunity of the first terminal device; and the processing unit 501 is further configured to wake up the first terminal device.

[0183] In an optional manner, the processing unit 501 is further configured to stop monitoring the LP-WUS after waking up the first terminal device.

[0184] In an optional manner, the first indication information and / or the second indication information is carried by one of the following signalings:

[0185] DCI, RRC signaling, MAC CE, SIB, LP-WUS signaling, or LP-SS signaling.

[0186] In another embodiment, the communication device 500 is a network device, and the processing unit 501 is used to determine a first mode of a listening opportunity within a first time period, the first time period is a transmission opportunity of a low power wake-up signal LP-WUS, and the listening opportunity is a listening opportunity of the LP-WUS; the transceiver unit 502 is used to send the LP-WUS at the listening opportunity according to the first mode.

[0187] In an optional manner, the first mode is associated with the following two parameters:

[0188] The number of synchronization signal transmissions and the number of LP-WUS types in the synchronization signal set; wherein the synchronization signal type is SSB and / or LP-SS, and the LP-WUS is used to carry at least one wake-up terminal device identifier or wake-up terminal device group identifier, and different LP-WUS types carry different wake-up terminal device identifiers or wake-up terminal device group identifiers. In one optional embodiment, the first mode is also related to the number of repeated transmissions of the LP-WUS.

[0189] In an optional manner, the first mode is also related to the number of repeated transmissions of the LP-WUS.

[0190] In an optional manner, the first mode includes one or more of the following:

[0191] Mode 1: The monitoring opportunities corresponding to different LP-WUSs corresponding to the same synchronization signal are continuous;

[0192] Mode 2: The monitoring opportunities corresponding to different LP-WUS corresponding to the same synchronization signal are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are continuous;

[0193] Mode 3: The monitoring opportunities corresponding to different LP-WUS corresponding to the same synchronization signal are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are discontinuous;

[0194] Mode 4: The monitoring opportunities corresponding to different synchronization signals corresponding to the same LP-WUS are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are continuous;

[0195] Mode 5: The monitoring opportunities corresponding to different synchronization signals corresponding to the same LP-WUS are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are discontinuous.

[0196] In an optional manner, the transceiver unit 502 is further configured to send first indication information, where the first indication information is used to indicate the first mode.

[0197] In an optional manner, the transceiver unit 502 is further configured to send second indication information, where the second indication information is used to indicate configuration parameters within the first time period.

[0198] In an optional manner, the configuration parameters include at least one of the following:

[0199] A first parameter S, a second parameter N, and a third parameter X; wherein S indicates the number of transmissions of synchronization signals in the synchronization signal set, N indicates the maximum number of different LP-WUSs allowed to be transmitted in the first time period, X is a first number, the first number indicates the number of identical LP-WUSs in the first time period, and S, N, and X are integers.

[0200] In an optional manner, if the first mode is mode 1, the number of listening opportunities in the first time period is determined to be S*N, and the [N*K+n]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the nth LP-WUS, where 0≤K≤S-1, 1≤n≤N, and K and n are integers.

[0201] In an optional manner, if the first mode is mode 2, the number of listening opportunities in the first time period is determined to be S*N*X, and the [N*X*K+n+*X+R]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the n+1th LP-WUS, where 0≤K≤S-1, 0≤n≤N-1, 1≤R≤X, and K, n, and R are integers.

[0202] In an optional manner, if the first mode is mode 3, the number of listening opportunities in the first time period is determined to be S*N*X, and the [R*N*S+N*K+n]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the nth LP-WUS, where 0≤K≤S-1, 1≤n≤N, 0≤R≤X-1, and K, n, and R are integers.

[0203] In an optional manner, if the first mode is mode 4, the number of listening opportunities in the first time period is determined to be S*N*X, and the [n*S*X+R*S+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the n+1th LP-WUS, where 1≤K≤S, 0≤n≤N-1, 0≤R≤X-1, and K, n, and R are integers.

[0204] In an optional manner, if the first mode is mode 5, the number of listening opportunities in the first time period is determined to be S*N*X, and the [R*N*S+S*n+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the n+1th LP-WUS, where 1≤K≤S, 0≤n≤N-1, 0≤R≤X-1, and K, n, and R are integers.

[0205] In an optional manner, the first indication information and / or the second indication information is carried by one of the following signalings:

[0206] DCI, RRC signaling, MAC-CE, SIB, LP-WUS signaling, or LP-SS signaling.

[0207] In addition, Figure 6 shows a simplified schematic diagram of the structure of a terminal device provided by this application. For ease of understanding and illustration, Figure 6 uses a mobile phone as an example of a terminal. As shown in Figure 6, the terminal includes a processor, memory, radio frequency circuitry, an antenna, and input / output devices.

[0208] The processor is mainly used to process communication protocols and communication data, as well as control terminal devices, execute software programs, process software program data, etc.

[0209] Memory is mainly used to store software programs and data.

[0210] Radio frequency circuits are mainly used for conversion between baseband signals and radio frequency signals and for processing radio frequency signals.

[0211] Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.

[0212] Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users.

[0213] It should be noted that some types of terminal devices may not have input and output devices.

[0214] When data needs to be sent, the processor performs baseband processing on the data to be transmitted and outputs the baseband signal to the RF circuit. The RF circuit then performs RF processing on the baseband signal and transmits it via the antenna in the form of electromagnetic waves. When data is sent to a terminal device, the RF circuit receives the RF signal via the antenna, converts it into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes it.

[0215] For ease of explanation, Figure 6 shows only one memory and processor. In actual terminal device products, one or more processors and one or more memories may exist. Memory may also be referred to as a storage medium or storage device. The memory may be provided independently of the processor or integrated with the processor, and this embodiment of the application does not impose any restrictions on this.

[0216] In the embodiment of the present application, the antenna and radio frequency circuit with transceiver functions can be regarded as the transceiver unit of the terminal device, and the processor with processing function can be regarded as the processing unit of the terminal device.

[0217] As shown in Figure 6, terminal 600 includes a transceiver unit 610 and a processing unit 620. Transceiver unit 610 may also be referred to as a transceiver, transceiver, transceiver device, etc. Processing unit 620 may also be referred to as a processor, processing board, processing module, processing device, etc.

[0218] Alternatively, the device in the transceiver unit 610 that implements the receiving function may be considered a receiving unit, and the device in the transceiver unit 610 that implements the transmitting function may be considered a transmitting unit. That is, the transceiver unit 610 includes a receiving unit and a transmitting unit. The transceiver unit may also be sometimes referred to as a transceiver, a transceiver, or a transceiver circuit. The receiving unit may also be sometimes referred to as a receiver, a receiver, or a receiving circuit. The transmitting unit may also be sometimes referred to as a transmitter, a transmitter, or a transmitting circuit.

[0219] It should be understood that the transceiver unit 610 is used to perform the sending and receiving operations of the terminal device in the above method embodiment, and the processing unit 620 is used to perform other operations except the sending and receiving operations on the terminal device in the above method embodiment.

[0220] When the terminal device is a chip, the chip includes a transceiver unit and a processing unit (processor). The transceiver unit can be an input / output circuit or a communication interface, such as an IO interface; the processing unit is a processor, microprocessor, integrated circuit, or logic circuit integrated on the chip. The transceiver unit, processing unit, and memory can be integrated into a first chip, such as a modem or a system-on-chip (SoC). The radio frequency circuit can be located in a second chip, such as a radio frequency front-end (RFF).

[0221] This application also provides a network device. Figure 7 shows a schematic diagram of the structure of a network device 700 provided in an embodiment of this application. This network device 700 can be applied to the system shown in Figure 1. For example, network device 700 can be a network device in the system shown in Figure 1, configured to perform the functions of the network device in the above-described method embodiment. It should be understood that the following is merely an example, and that network devices in future communication systems may have other forms and configurations.

[0222] For example, in a 5G communication system, the network device 700 may include a CU, a DU, and an AAU. Compared to the network device in an LTE communication system, which consists of one or more radio frequency units, such as a remote radio unit (RRU) and one or more building base band units (BBU):

[0223] The non-real-time portion of the original BBU will be separated and redefined as a CU, responsible for handling non-real-time protocols and services. Some of the BBU's physical layer processing functions will be merged with the original RRU and passive antennas into the AAU. The remaining BBU functions will be redefined as a DU, responsible for handling physical layer protocols and real-time services. In short, the CU and DU are differentiated by the real-time nature of their processing, and the AAU is a combination of the RRU and antenna.

[0224] The CU, DU, and AAU can be deployed separately or together, resulting in a variety of network deployment configurations. One possible deployment configuration, shown in Figure 7, is consistent with traditional 4G network equipment, with the CU and DU deployed on shared hardware. It should be understood that Figure 7 is merely an example and does not limit the scope of protection of this application. For example, the deployment configuration may also include the DU deployed in the BBU room, the CU deployed centrally, or the DU deployed centrally, with the CU centralized at a higher level.

[0225] The AAU 800 can implement transceiver functions and correspond to the transceiver unit 502 in Figure 5. Optionally, the AAU 800 can also be called a transceiver, a transceiver circuit, or a transceiver, and can include at least one antenna 801 and a radio frequency unit 802. Optionally, the AAU 800 can include a receiving unit and a transmitting unit. The receiving unit can correspond to a receiver (or receiver, receiving circuit), and the transmitting unit can correspond to a transmitter (or transmitter, transmitting circuit). The CU and DU 900 can implement internal processing functions and correspond to the processing unit 501 in Figure 5. Optionally, the CU and DU 900 can control network devices and can be called controllers. The AAU, CU, and DU can be physically set together or physically separated.

[0226] In addition, the network device is not limited to the form shown in Figure 7, but can also be in other forms: for example: including a BBU and an adaptive radio unit (ARU), or including a BBU and an AAU; it can also be customer premises equipment (CPE), or it can be in other forms, which is not limited in this application.

[0227] In one example, the CU and DU900 can be composed of one or more single boards, and multiple single boards can jointly support a wireless access network with a single access standard (such as an LTE network), or can respectively support wireless access networks with different access standards (such as an LTE network, a 5G network, a future network or other networks). The CU and DU900 also include a memory 901 and a processor 902. The memory 901 is used to store necessary instructions and data. The processor 902 is used to control the network device to perform necessary actions, such as controlling the network device to execute the operation process of the network device in the above method embodiment. The memory 901 and the processor 902 can serve one or more single boards. That is, a memory and a processor can be set separately on each single board. Alternatively, multiple single boards can share the same memory and processor. In addition, necessary circuits can also be set on each single board.

[0228] It should be understood that the network device 700 shown in Figure 7 is capable of implementing the network device functions involved in the method embodiment of Figure 3. The operations and / or functions of the various units in the network device 700 are respectively for implementing the corresponding processes performed by the network device in the method embodiment of the present application. To avoid repetition, detailed descriptions are appropriately omitted here. The structure of the network device illustrated in Figure 7 is only one possible form and should not constitute any limitation on the embodiments of the present application. The present application does not exclude the possibility of other forms of network device structures that may appear in the future.

[0229] The CU and DU 900 can be used to perform the actions implemented within the network device described in the previous method embodiments, while the AAU 800 can be used to perform the actions described in the previous method embodiments in which the network device sends or receives data to or from the terminal device. For details, please refer to the description in the previous method embodiments and will not be repeated here.

[0230] The present application also provides a communication system including a terminal device and a network device. The terminal device is configured to execute all or part of the steps executed by the terminal device in the embodiment shown in FIG. 3 . The network device is configured to execute all or part of the steps executed by the network device in the embodiment shown in FIG. 3 .

[0231] Based on the above embodiments, embodiments of the present application further provide a computer-readable storage medium, which stores instructions that, when executed, implement the method of any of the above embodiments. The computer-readable storage medium can be either a volatile storage medium or a non-volatile storage medium. The computer-readable storage medium can include various media capable of storing program code, such as a USB flash drive, a mobile hard drive, a read-only memory, a random access memory, a magnetic disk, or an optical disk.

[0232] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, compact disc read-only memory (CD-ROM), optical storage, etc.) containing computer-usable program code.

[0233] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0234] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0235] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

Claims

1. A communication method, characterized in that: include: Determine a first mode of a monitoring opportunity within a first time period, where the first time period is a transmission opportunity of a low power wake-up signal LP-WUS, and the monitoring opportunity is a monitoring opportunity of the LP-WUS; Determine a monitoring timing of the first terminal device according to the first mode.

2. The method according to claim 1, characterized in that The first mode is associated with one or more of the following parameters: The number of synchronization signals transmitted in the synchronization signal set and the number of LP-WUS types; Among them, the type of the synchronization signal is a synchronization signal block SSB, and / or a low-power synchronization signal LP-SS, and the LP-WUS is used to carry the identifier of at least one wake-up terminal device or the identifier of the wake-up terminal device group, and the identifiers of the wake-up terminal devices or the wake-up terminal device groups carried by different types of LP-WUS are different.

3. The method according to claim 2, characterized in that The first mode is further related to the number of repeated transmissions of the LP-WUS.

4. The method according to claim 2 or 3, characterized in that The first mode includes one or more of the following: Mode 1: the monitoring opportunities corresponding to different LP-WUSs corresponding to the same synchronization signal are continuous; Mode 2: The monitoring opportunities corresponding to different LP-WUSs corresponding to the same synchronization signal are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are continuous; Mode 3: The listening opportunities corresponding to different LP-WUSs corresponding to the same synchronization signal are continuous, and the listening opportunities corresponding to repeated transmissions of the same LP-WUS are discontinuous; Mode 4: The monitoring opportunities corresponding to different synchronization signals corresponding to the same LP-WUS are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are continuous; Mode 5: The monitoring opportunities corresponding to different synchronization signals corresponding to the same LP-WUS are continuous, and the monitoring opportunities corresponding to repeated transmission of the same LP-WUS are discontinuous.

5. The method according to any one of claims 1 to 4, characterized in that: The method further comprises: receiving first indication information, where the first indication information is used to indicate the first mode; The first mode of determining the monitoring opportunity within the first time period includes: A first mode of monitoring opportunities within a first time period is determined according to the first indication information.

6. The method according to any one of claims 1 to 5, characterized in that: The method further comprises: Second indication information is received, where the second indication information is used to indicate configuration parameters within the first time period.

7. The method according to claim 6, characterized in that The configuration parameters include at least one of the following: A first parameter S, a second parameter N, and a third parameter X; Among them, the S indicates the number of transmission synchronization signals in the synchronization signal set, the N indicates the maximum number of different LP-WUSs allowed to be transmitted in the first time period, the X is a first number, the first number indicates the number of the same LP-WUS in the first time period, and the S, the N and the X are integers.

8. The method according to claim 7, characterized in that The determining the monitoring timing of the first terminal device according to the first mode includes: Determine the monitoring timing of the first terminal device according to the first mode and the second indication information.

9. The method according to claim 7, characterized in that The first mode is mode 1, the number of listening opportunities in the first time period is S*N, the [N*K+n]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the nth type of LP-WUS, wherein 0≤K≤S-1, 1≤n≤N, and K and n are integers.

10. The method according to claim 7, characterized in that The first mode is mode 2, the number of listening opportunities in the first time period is S*N*X, and the [N*X*K+n*X+R]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the n+1th LP-WUS, wherein 0≤K≤S-1, 0≤n≤N-1, 1≤R≤X, and the K, the n, and the R are integers.

11. The method according to claim 7, characterized in that The first mode is mode 3, the number of listening opportunities in the first time period is S*N*X, and the [R*N*S+N*K+n]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the nth type of LP-WUS, wherein 0≤K≤S-1, 1≤n≤N, 0≤R≤X-1, and the K, the n, and the R are integers.

12. The method according to claim 7, characterized in that The first mode is mode 4, the number of listening opportunities in the first time period is S*N*X, and the [n*S*X+R*S+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the n+1th LP-WUS, wherein 1≤K≤S, 0≤n≤N-1, 0≤R≤X-1, and the K, the n, and the R are integers.

13. The method according to claim 7, characterized in that If the first mode is mode 5, the number of listening opportunities in the first time period is determined to be S*N*X, and the [R*N*S+S*n+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the n+1th LP-WUS, wherein 1≤K≤S, 0≤n≤N-1, 0≤R≤X-1, and K, n, and R are integers.

14. The method according to any one of claims 1 to 13, characterized in that: The method further comprises: receiving at least one of the LP-WUSs within a listening opportunity of the first terminal device; Wake up the first terminal device.

15. The method according to claim 14, characterized in that The method further comprises: After waking up the first terminal device, the LP-WUS is not monitored.

16. The method according to any one of claims 5 to 13, characterized in that: The first indication information and / or the second indication information is carried by one of the following signaling: Downlink control information DCI, radio resource control RRC signaling, media access control layer control element MAC-CE, system information block SIB, LP-WUS signaling, or LP-SS signaling.

17. A communication method, characterized in that: include: Determine a first mode of a monitoring opportunity within a first time period, where the first time period is a transmission opportunity of a low power wake-up signal LP-WUS, and the monitoring opportunity is a monitoring opportunity of the LP-WUS; The LP-WUS is sent at the listening opportunity according to the first mode.

18. The method according to claim 17, characterized in that The first mode is associated with one or more of the following parameters: The number of synchronization signals transmitted in the synchronization signal set and the number of LP-WUS types; Among them, the type of the synchronization signal is a synchronization signal block SSB, and / or a low-power synchronization signal LP-SS, and the LP-WUS is used to carry the identifier of at least one wake-up terminal device or the identifier of the wake-up terminal device group, and the identifiers of the wake-up terminal devices or the wake-up terminal device groups carried by different types of LP-WUS are different.

19. The method according to claim 18, characterized in that The first mode is further related to the number of repeated transmissions of the LP-WUS.

20. The method according to claim 18 or 19, characterized in that The first mode includes one or more of the following: Mode 1: the monitoring opportunities corresponding to different LP-WUSs corresponding to the same synchronization signal are continuous; Mode 2: The monitoring opportunities corresponding to different LP-WUSs corresponding to the same synchronization signal are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are continuous; Mode 3: The listening opportunities corresponding to different LP-WUSs corresponding to the same synchronization signal are continuous, and the listening opportunities corresponding to repeated transmissions of the same LP-WUS are discontinuous; Mode 4: The monitoring opportunities corresponding to different synchronization signals corresponding to the same LP-WUS are continuous, and the monitoring opportunities corresponding to repeated transmissions of the same LP-WUS are continuous; Mode 5: The monitoring opportunities corresponding to different synchronization signals corresponding to the same LP-WUS are continuous, and the monitoring opportunities corresponding to repeated transmission of the same LP-WUS are discontinuous.

21. The method according to any one of claims 17 to 20, characterized in that: The method further comprises: First indication information is sent, where the first indication information is used to indicate the first mode.

22. The method according to any one of claims 17 to 21, characterized in that: The method further comprises: Send second indication information, where the second indication information is used to indicate configuration parameters within the first time period.

23. The method according to claim 22, characterized in that The configuration parameters include at least one of the following: A first parameter S, a second parameter N, and a third parameter X; Among them, the S indicates the number of transmission synchronization signals in the synchronization signal set, the N indicates the maximum number of different LP-WUSs allowed to be transmitted in the first time period, the X is a first number, the first number indicates the number of the same LP-WUS in the first time period, and the S, the N and the X are integers.

24. The method according to claim 23, wherein The first mode is mode 1, the number of listening opportunities in the first time period is S*N, the [N*K+n]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the nth type of LP-WUS, wherein 0≤K≤S-1, 1≤n≤N, and K and n are integers.

25. The method according to claim 23, characterized in that The first mode is mode 2, the number of listening opportunities in the first time period is S*N*X, and the [N*X*K+n*X+R]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the n+1th LP-WUS, wherein 0≤K≤S-1, 0≤n≤N-1, 1≤R≤X, and the K, the n, and the R are integers.

26. The method according to claim 23, wherein The first mode is mode 3, the number of listening opportunities in the first time period is S*N*X, and the [R*N*S+N*K+n]th listening opportunity corresponds to the K+1th transmitted synchronization signal and the nth type of LP-WUS, wherein 0≤K≤S-1, 1≤n≤N, 0≤R≤X-1, and the K, the n, and the R are integers.

27. The method according to claim 23, characterized in that The first mode is mode 4, the number of listening opportunities in the first time period is S*N*X, and the [n*S*X+R*S+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the n+1th LP-WUS, wherein 1≤K≤S, 0≤n≤N-1, 0≤R≤X-1, and the K, the n, and the R are integers.

28. The method according to claim 23, wherein The first mode is mode 5, the number of listening opportunities in the first time period is S*N*X, and the [R*N*S+S*n+K]th listening opportunity corresponds to the Kth transmitted synchronization signal and the n+1th LP-WUS, wherein 1≤K≤S, 0≤n≤N-1, 0≤R≤X-1, and the K, the n, and the R are integers.

29. The method according to any one of claims 21 to 28, characterized in that: The first indication information and / or the second indication information is carried by one of the following signaling: Downlink control information DCI, radio resource control RRC signaling, media access control layer control element MAC-CE, system information block SIB, LP-WUS signaling, or LP-SS signaling.

30. A communication device, characterized in that: include: at least one processor; Used to run part or all of the computer program or data so that the method according to any one of claims 1 to 29 is performed.

31. A computer-readable storage medium, characterized in that The computer-readable storage medium stores instructions, and when the instructions are executed by a computer, the method according to any one of claims 1 to 29 is performed.

32. A computer program product comprising a computer program or instructions, characterized in that When the computer program or instruction is run on a computer, the method according to any one of claims 1 to 29 is performed.

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