Communication method and communication apparatus

Abstract

The present application provides a communication method and a communication apparatus. The method may comprise: receiving indication information, the indication information being used for instructing to start to monitor a wake-up signal; and in response to the indication information, a terminal device starting to monitor the wake-up signal on the basis of a TCI state associated with the wake-up signal, wherein the TCI state associated with the wake-up signal is determined on the basis of the indication information. On this basis, the TCI state associated with the wake-up signal can be flexibly indicated, and the TCI state associated with the wake-up signal can be dynamically adjusted on the basis of the external environment (such as changes in the location of the terminal device and changes in channel environment). In addition, the terminal device can monitor the wake-up signal on the basis of the TCI state associated with the wake-up signal, thereby improving the reception performance of wake-up signals.

Description

Communication method and communication apparatus

[0001] This application claims priority to the Chinese Patent Application No. 202410851912.3, filed on June 27, 2024, entitled "Communication method and communication apparatus", and the Chinese Patent Application No. 202411093137.6, filed on August 08, 2024, entitled "Communication method and communication apparatus", the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the field of wireless communication, and more particularly, to a communication method and a communication apparatus. BACKGROUND

[0003] A terminal device can receive a wake-up signal through a single low-power small circuit, such as a wake-up radio (WUR), and a main receiver can be in a sleep state. When the terminal device detects the wake-up signal through the WUR, the terminal device triggers the wake-up of the main receiver. After the main receiver is woken up, the terminal device can receive data and the like through the main receiver. How to improve the reception performance of the wake-up signal is a problem worth considering. SUMMARY

[0004] The present application provides a communication method and a communication apparatus. By designing the TCI state associated with the wake-up signal, the terminal device can monitor the wake-up signal based on the TCI state associated with the wake-up signal, and the reception performance of the wake-up signal can be improved.

[0005] In a first aspect, a communication method is provided. The method can be applied to the terminal side, that is, the method can be executed by a terminal device, or can be executed by a component (such as a chip or a chip system or a circuit or a communication module) of the terminal device, and the present application does not limit this. Hereinafter, the terminal device will be mainly taken as an example for description.

[0006] The method can include: receiving indication information, the indication information indicating to start monitoring a wake-up signal; and monitoring the wake-up signal according to a TCI state associated with the wake-up signal, wherein the TCI state associated with the wake-up signal is determined based on the indication information.

[0007] Based on the technical solution, the terminal device can receive the indication information, the indication information indicates to start monitoring the wake-up signal, and the terminal device can also determine the TCI state associated with the wake-up signal based on the indication information. The terminal device starts monitoring the wake-up signal based on the TCI state associated with the wake-up signal in response to the indication information. Based on this, the TCI state associated with the wake-up signal can be flexibly indicated, and the TCI state associated with the wake-up signal can be dynamically adjusted according to the external environment (such as terminal device location change, channel environment change, etc.). Specifically, by indicating the terminal device to start monitoring the wake-up signal through the indication information, the TCI state associated with the wake-up signal is also indicated. In this way, different (or adapted to the external environment) TCI states of the wake-up signal can be indicated each time the terminal device is instructed to start monitoring the wake-up signal. In addition, the terminal device can monitor the wake-up signal based on the TCI state associated with the wake-up signal, which can improve the reception performance of the wake-up signal. For example, assuming that the terminal device learns the reception parameters of the wake-up signal based on the TCI state associated with the wake-up signal, the terminal device can directly monitor the wake-up signal based on the reception parameters of the wake-up signal. Compared with the terminal device directly monitoring the wake-up signal, the reception performance of the wake-up signal can be greatly improved.

[0008] In combination with the first aspect, in some implementations of the first aspect, the TCI state associated with the wake-up signal is determined based on the indication information, including that the indication information further indicates the TCI state associated with the wake-up signal.

[0009] Based on the technical solution, the indication information can explicitly indicate the TCI state associated with the wake-up signal, so that the terminal device can directly learn the TCI state associated with the wake-up signal based on the indication information, which is simple and easy to implement.

[0010] In combination with the first aspect, in some implementations of the first aspect, the TCI state associated with the wake-up signal is determined based on the indication information, including that the indication information is carried in the downlink control information, and the TCI state associated with the wake-up signal is the TCI state of the control resource set of the downlink control information; or the indication information is carried in the physical downlink shared channel, and the TCI state associated with the wake-up signal is the TCI state of the physical downlink shared channel.

[0011] Based on the technical solution, the indication information can implicitly indicate the TCI state associated with the wake-up signal, so that not only the indication of the TCI state associated with the wake-up signal can be achieved, but also the signaling overhead caused by indicating the TCI state associated with the wake-up signal is reduced.

[0012] In combination with the first aspect, in some implementations of the first aspect, the indication information is carried in the downlink control information, and the TCI state associated with the wake-up signal is the TCI state of the control resource set of the downlink control information that meets a preset condition.

[0013] In some implementations of the first aspect, the TCI state associated with the wake-up signal includes one TCI state.

[0014] Based on the above technical solution, the terminal device can monitor the wake-up signal based on the same TCI state in a time period, and correspondingly, the network device transmits the wake-up signal using the same or similar parameters in the time period, which can reduce the difficulty of the terminal device receiving the wake-up signal.

[0015] In some implementations of the first aspect, the TCI state associated with the wake-up signal includes multiple TCI states, the multiple TCI states include a first TCI state and a second TCI state, and the monitoring the wake-up signal includes monitoring the wake-up signal in a first time period, the first time period includes X1 first time domain units and X2 second time domain units, the TCI state associated with the wake-up signal in the X1 first time domain units is the first TCI state, the TCI state associated with the wake-up signal in the X2 second time domain units is the second TCI state, and X1 and X2 are integers greater than 1 or equal to 1.

[0016] Based on the above technical solution, the terminal device can monitor the wake-up signal based on different TCI states in a time period, such as using different TCI states in different time domain positions, which can enhance the reliability of wake-up signal transmission, such as when the channel state corresponding to a certain TCI state is not good, the channel state corresponding to another TCI state may be better.

[0017] In some implementations of the first aspect, the indication information includes first sub-information and second sub-information, the first sub-information is used for monitoring the wake-up signal in the X1 first time domain units, and the first sub-information indicates the first TCI state; and the second sub-information is used for monitoring the wake-up signal in the X2 second time domain units, and the second sub-information indicates the second TCI state.

[0018] In some implementations of the first aspect, the X1 first time domain units and the X2 second time domain units coincide in a first time domain position, and the TCI state associated with the wake-up signal in the first time domain position is determined based on a preset rule.

[0019] In some implementations of the first aspect, a starting time of the first time period is a first time, the first time is a time of starting to monitor the wake-up signal in response to the indication information, and an ending time of the first time period is a time of stopping monitoring the wake-up signal after the first time.

[0020] With reference to the first aspect, in some implementations of the first aspect, the receiving the indication information comprises: receiving the indication information before a timer expires; and the monitoring the wake-up signal according to the TCI state associated with the wake-up signal comprises: if the indication information is received before the timer expires, monitoring the wake-up signal according to the TCI state associated with the wake-up signal. Optionally, the method further comprises: if the indication information is not received before the timer expires, monitoring the wake-up signal according to a preset TCI state after the timer expires.

[0021] Based on the above technical solution, the terminal device monitors the indication information. If the indication information is monitored before the timer expires, the TCI state associated with the wake-up signal is determined based on the indication information, and the wake-up signal is monitored based on the TCI state associated with the wake-up signal. If the indication information is not monitored until the timer expires, the terminal device monitors the wake-up signal based on the preset TCI state at the time of the timer expiration.

[0022] With reference to the first aspect, in some implementations of the first aspect, the preset TCI state comprises one TCI state; or the preset TCI state comprises a plurality of TCI states, and the plurality of TCI states comprise a first preset TCI state and a second preset TCI state; and the monitoring the wake-up signal comprises: monitoring the wake-up signal in a second time period, the second time period comprising X3 third time domain units and X4 fourth time domain units, the TCI state associated with the wake-up signal being the first preset TCI state in the X3 third time domain units, and the TCI state associated with the wake-up signal being the second preset TCI state in the X4 fourth time domain units, the X3 and the X4 being integers greater than 1 or equal to 1.

[0023] With reference to the first aspect, in some implementations of the first aspect, the preset TCI state comprises a plurality of TCI states, and the plurality of TCI states comprise a first preset TCI state and a second preset TCI state. Before the monitoring the wake-up signal, the method further comprises: receiving configuration information, the configuration information indicating a wake-up signal monitoring configuration, the wake-up signal monitoring configuration comprising a plurality of wake-up signal monitoring configurations, the plurality of wake-up signal monitoring configurations comprising a first wake-up signal monitoring configuration and a second wake-up signal monitoring configuration, the first wake-up signal monitoring configuration being associated with the first preset TCI state, and the second wake-up signal monitoring configuration being associated with the second preset TCI state.

[0024] With reference to the first aspect, in some implementations of the first aspect, the TCI state associated with the wake-up signal comprises at least one of the following: a quasi co-location (QCL) type, a reference signal, and a reference signal resource.

[0025] In a second aspect, a communication method is provided. The method can be applied to a network side, i.e., the method can be performed by a network device, or can be performed by a component (e.g., a chip or a chip system or a circuit or a communication module) of the network device, which is not limited in the application. Hereinafter, the network device is mainly taken as an example for description.

[0026] The method can include: determining indication information, the indication information indicating to start monitoring a wake-up signal, a TCI state associated with the wake-up signal being determined based on the indication information; and transmitting the indication information.

[0027] With reference to the second aspect, in some implementations of the second aspect, the TCI state associated with the wake-up signal is determined based on the indication information, including that the indication information further indicates the TCI state associated with the wake-up signal.

[0028] With reference to the second aspect, in some implementations of the second aspect, the TCI state associated with the wake-up signal is determined based on the indication information, including that the indication information is carried in downlink control information, and the TCI state associated with the wake-up signal is a TCI state of a control resource set of the downlink control information; or the indication information is carried in a physical downlink shared channel, and the TCI state associated with the wake-up signal is a TCI state of the physical downlink shared channel.

[0029] With reference to the second aspect, in some implementations of the second aspect, the indication information is carried in downlink control information, and the TCI state associated with the wake-up signal is a TCI state of a control resource set of the downlink control information that meets a preset condition.

[0030] With reference to the second aspect, in some implementations of the second aspect, the TCI state associated with the wake-up signal includes one TCI state.

[0031] With reference to the second aspect, in some implementations of the second aspect, the TCI state associated with the wake-up signal includes multiple TCI states, the multiple TCI states including a first TCI state and a second TCI state, the TCI state associated with the wake-up signal being the first TCI state in X1 first time domain units of a first time period, and the TCI state associated with the wake-up signal being the second TCI state in X2 second time domain units of the first time period, the X1 and the X2 being integers greater than 1 or equal to 1.

[0032] In some implementations of the second aspect, in combination with the second aspect, the indication information includes first sub-information and second sub-information, the first sub-information is used for monitoring a wake-up signal in the X1 first time domain units, and the first sub-information indicates the first TCI state; the second sub-information is used for monitoring a wake-up signal in the X2 second time domain units, and the second sub-information indicates the second TCI state.

[0033] In some implementations of the second aspect, in combination with the second aspect, the X1 first time domain units and the X2 second time domain units coincide at a first time domain position, and a TCI state associated with the wake-up signal at the first time domain position is determined based on a preset rule.

[0034] In some implementations of the second aspect, in combination with the second aspect, a starting time of the first time period is a first time, the first time is a time at which monitoring of the wake-up signal is started in response to the indication information, and an ending time of the first time period is a time at which monitoring of the wake-up signal is stopped after the first time.

[0035] In some implementations of the second aspect, in combination with the second aspect, the TCI state associated with the wake-up signal includes at least one of the following: a quasi co-location (QCL) type, a reference signal, and a reference signal resource.

[0036] In a third aspect, a communication method is provided. The method can be applied to a terminal side, that is, the method can be executed by a terminal device or a component (for example, a chip or a chip system or a circuit or a communication module) of the terminal device, and the present application does not limit this. Hereinafter, the terminal device will be mainly taken as an example for description.

[0037] The method can include starting monitoring of a wake-up signal based on a timer, wherein a TCI state associated with the wake-up signal is a preset TCI state.

[0038] In some implementations of the third aspect, in combination with the third aspect, the preset TCI state includes one TCI state; or the preset TCI state includes multiple TCI states, and the multiple TCI states include a first preset TCI state and a second preset TCI state; and the monitoring of the wake-up signal includes monitoring of the wake-up signal in a second time period, the second time period includes X3 third time domain units and X4 fourth time domain units, a TCI state associated with the wake-up signal in the X3 third time domain units is the first preset TCI state, a TCI state associated with the wake-up signal in the X4 fourth time domain units is the second preset TCI state, and the X3 and the X4 are integers greater than 1 or equal to 1.

[0039] In some implementations of the third aspect, in conjunction with the third aspect, the first wake-up signal monitoring configuration being associated with the first preset TCI state comprises that the first wake-up signal monitoring configuration comprises an index of the first preset TCI state; and / or the second wake-up signal monitoring configuration being associated with the second preset TCI state comprises that the second wake-up signal monitoring configuration comprises an index of the second preset TCI state.

[0040] In some implementations of the third aspect, in conjunction with the third aspect, the first wake-up signal monitoring configuration being associated with the first preset TCI state comprises that the first wake-up signal monitoring configuration comprises an index of the first preset TCI state; and / or the second wake-up signal monitoring configuration being associated with the second preset TCI state comprises that the second wake-up signal monitoring configuration comprises an index of the second preset TCI state.

[0041] The beneficial effects and possible designs related to the second aspect to the third aspect can be referred to the related description in the first aspect, which will not be repeated here.

[0042] A fourth aspect provides a communication method. The method can be applied to the terminal side, that is, the method can be executed by a terminal device, or can be executed by a component (such as a chip or a chip system or a circuit or a communication module) of the terminal device, which is not limited herein. Hereinafter, the terminal device will be mainly taken as an example for description.

[0043] The method can comprise: receiving configuration information, the configuration information indicating a wake-up signal monitoring configuration, the wake-up signal monitoring configuration comprising a plurality of wake-up signal monitoring configurations.

[0044] A fifth aspect provides a communication method. The method can be applied to the network side, that is, the method can be executed by a network device, or can be executed by a component (such as a chip or a chip system or a circuit or a communication module) of the network device, which is not limited herein. Hereinafter, the network device will be mainly taken as an example for description.

[0045] The method can comprise: sending configuration information, the configuration information indicating a wake-up signal monitoring configuration, the wake-up signal monitoring configuration comprising a plurality of wake-up signal monitoring configurations.

[0046] Based on the above technical solutions, multiple sets of wake-up signal monitoring configurations can be configured, so that the terminal device can monitor the wake-up signal based on different wake-up signal monitoring configurations at different times or under different conditions.

[0047] In some implementations, in combination with the fourth aspect or the fifth aspect, the multiple wake-up signal monitoring configurations include a first wake-up signal monitoring configuration and a second wake-up signal monitoring configuration, the first wake-up signal monitoring configuration is associated with the first preset TCI state, and the second wake-up signal monitoring configuration is associated with the second preset TCI state.

[0048] In some implementations, in combination with the fourth aspect or the fifth aspect, the first wake-up signal monitoring configuration being associated with the first preset TCI state includes that the first wake-up signal monitoring configuration includes an index of the first preset TCI state, and / or the second wake-up signal monitoring configuration being associated with the second preset TCI state includes that the second wake-up signal monitoring configuration includes an index of the second preset TCI state.

[0049] In a sixth aspect, a communication apparatus is provided. The apparatus can be configured to perform the method in any one of the first aspect to the fifth aspect and any possible implementation thereof.

[0050] In an implementation, the apparatus is a communication device (e.g., a terminal device, or a network device). When the apparatus is a communication device, the communication unit can be a transceiver, or an input / output interface; and the processing unit can be at least one processor. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0051] In another implementation, the apparatus is a chip, a chip system, or a circuit, or a communication module for a communication device (e.g., a terminal device, or a network device). When the apparatus is a chip, a chip system, or a circuit for a communication device, the communication unit can be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin, or related circuitry, etc. on the chip, the chip system, or the circuit; and the processing unit can be at least one processor, a processing circuit, or a logic circuit, etc.

[0052] In a seventh aspect, a communication apparatus is provided. The apparatus can include at least one processor configured to cause the apparatus to perform the method in any one of the first aspect to the fifth aspect and any possible implementation thereof.

[0053] Optionally, the at least one processor is configured to execute a computer program or instructions to perform the method in any one of the first aspect to the fifth aspect and any possible implementation thereof.

[0054] Optionally, the apparatus further includes a memory configured to store the computer program or instructions.

[0055] Optionally, the at least one processor is coupled with a memory for storing the computer program or instructions. The memory can be arranged outside the apparatus.

[0056] Optionally, the apparatus further includes a communication interface through which the processor reads the instructions on the memory. It can be understood that the communication interface is coupled with the processor and can be used to input the computer program or instructions into the processor or output the information in the processor.

[0057] For the operations of sending, obtaining / receiving and the like involved, if no special description is made, or if it is not contrary to the actual role or inherent logic in the related description, it can be understood as output, input and the like, or as the sending and receiving operations performed by the radio frequency circuit and the antenna, which are not limited in the present application.

[0058] In an implementation manner, the apparatus is a communication device (such as a terminal device, or a network device).

[0059] In another implementation manner, the apparatus is a chip, a chip system or a circuit or a communication module for a communication device (such as a terminal device, or a network device). Optionally, the chip is a Modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core.

[0060] An eighth aspect provides a computer readable storage medium, the computer readable medium storing a computer program (for example, program code) or instructions, the program or instructions, when running on a communication apparatus, causing the communication apparatus to perform the method in any one of the first aspect to the fifth aspect and any possible implementation manner thereof.

[0061] A ninth aspect provides a computer program product containing instructions, which, when executed on a computer, cause the computer to perform the method in any one of the first aspect to the fifth aspect and any possible implementation manner thereof.

[0062] A tenth aspect provides a communication system including a first communication apparatus and a second communication apparatus. The first communication apparatus is configured to perform the method provided in any one of the implementation manners of the first aspect, and the second communication apparatus is configured to perform the method provided in any one of the implementation manners of the second aspect; or the first communication apparatus is configured to perform the method provided in any one of the implementation manners of the fourth aspect, and the second communication apparatus is configured to perform the method provided in any one of the implementation manners of the fifth aspect. BRIEF DESCRIPTION OF DRAWINGS

[0063] FIG. 1 is a schematic diagram of a wireless communication system suitable for embodiments of the present application.

[0064] FIG. 2 is a schematic diagram of a main circuit and a wake-up circuit.

[0065] FIG. 3 is a schematic diagram of waveforms when a signal is modulated using OOK.

[0066] FIG. 4 is a schematic diagram of a communication method 400 according to an embodiment of the present application.

[0067] FIG. 5 is a schematic diagram of a relationship between a wake-up signal and a TCI-state suitable for embodiments of the present application.

[0068] FIG. 6 is a schematic diagram of a relationship between a wake-up signal and a TCI-state suitable for embodiments of the present application.

[0069] FIG. 7 is a schematic diagram of a relationship between a wake-up signal and a TCI-state suitable for embodiments of the present application.

[0070] FIG. 8 is a schematic diagram of a communication method 800 according to an embodiment of the present application.

[0071] FIG. 9 is a schematic block diagram of a communication apparatus 900 according to an embodiment of the present application.

[0072] FIG. 10 is a schematic diagram of another communication apparatus 1000 according to an embodiment of the present application.

[0073] FIG. 11 is a schematic diagram of a chip system 1100 according to an embodiment of the present application. DETAILED DESCRIPTION

[0074] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0075] Before introducing the solutions of the present application, the following points are explained.

[0076] (1) In the present application, “indication” can include direct indication, indirect indication, explicit indication, implicit indication, and the like. When describing that a certain indication information indicates A, it can be understood that the indication information carries A, carries an identifier of A, carries B having an association relationship with A, carries an identifier of B having an association relationship with A, and the like. In other words, if the receiving side of certain indication information can determine A according to the indication information, it can be described that the indication information indicates A, and the specific determination is not limited. When it is understood that the indication information carries A, “indication” can be replaced by “includes”, at this time, similar to the expression “sending / receiving indication information, the indication information indicates A”, it can be replaced by “sending / receiving A”.

[0077] In the present application, the information indicated by the indication information is referred to as to-be-indicated information. In the specific implementation process, there are many ways to indicate the to-be-indicated information, for example, but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or the index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, wherein the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be only indicated in part, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of a specific information can also be achieved by means of the arrangement order of each information agreed in advance (for example, the protocol stipulates), thereby reducing the indication overhead to a certain extent. In addition, the to-be-indicated information can be sent as a whole, or can be sent separately into multiple sub-information, and the sending period and / or sending time of these sub-information can be the same or different.

[0078] (2) In the present application, the expression " / " is used to represent that the objects associated before and after are in an "or" relationship; for example, A / B can represent A or B. The expression "and / or" is used to represent that the objects associated before and after can be in an and relationship or an or relationship; for example, A and / or B can represent the following cases: A exists alone, B exists alone, A and B exist together, wherein A and B can be single or multiple. "At least one of the following" or similar expressions are used to represent any combination of the listed items; for example, at least one of A, B and (or) C can represent the following cases: A exists alone, B exists alone, C exists alone, A and B exist together, B and C exist together, A and C exist together, A, B and C exist together, wherein A, B and C can be single or multiple.

[0079] (3) In the present application, "sending" and "receiving" represent the direction of signal transmission. For example, "sending information to XX" can be understood as that the destination of the information is XX, which can include direct sending through the air interface, or indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as that the source of the information is YY, which can include direct receiving from YY through the air interface, or indirect receiving from YY through the air interface from other units or modules. "Sending" can also be understood as "output" of a chip interface, and "receiving" can also be understood as "input" of a chip interface. In other words, sending and receiving can be carried out between devices, for example, between network devices and terminal devices, or can be carried out within a device, for example, between components, between modules, between chips, between software modules or hardware modules in a device through a bus, a wire or an interface.

[0080] (4) In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terms and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0081] (5) In this application, "first," "second," and "#1," "#2," and "#A" are merely for descriptive convenience and are used to distinguish objects, and are not intended to limit the scope of the embodiments of this application. They are not used to describe the order or sequence of features. It should be understood that such described objects can be interchanged where appropriate in order to describe solutions other than those in the embodiments of this application.

[0082] (6) In this application, "predefined" can mean a standard protocol predefined, or it can mean a pre-agreed or pre-negotiated agreement between devices. Here, "protocol" can refer to a standard protocol in the field of communications, for example, it may include fourth-generation (4G) protocols. th Generation 4G network, fifth generation (5G) network th This application does not limit the scope to network protocols such as 5G (generation, 5G), New Radio (NR), 5.5G, and related protocols applied in future communication networks.

[0083] (7) In this application, the words “exemplary,” “for example,” etc., are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as an “example” in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the word “example” is intended to present the concept in a concrete manner. In the embodiments of this application, “of,” “corresponding, relevant,” and “corresponding” may sometimes be used interchangeably, and it should be noted that their intended meanings are consistent unless their distinction is emphasized.

[0084] First, let me introduce the communication system to which this application applies.

[0085] The technical solutions provided in the present application can be applied to various communication systems, for example, a 5th generation (5G) or new radio (NR) system, a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, and the like. The technical solutions provided in the present application can also be applied to future communication network systems. The technical solutions provided in the present application can also be applied to device to device (D2D) communication, vehicle-to-everything (V2X) communication, machine to machine (M2M) communication, machine type communication (MTC), and internet of things (IoT) communication systems. The technical solutions provided in the present application can also be applied to non-terrestrial network (NTN) systems such as inter-satellite communication and satellite communication.

[0086] As an example, a satellite communication system includes a satellite base station and a terminal device. The satellite base station provides communication services for the terminal device. The satellite base station can also communicate with a base station. The satellite can act as a base station or a terminal device. The satellite can refer to a drone, a hot air balloon, a low earth orbit satellite, a medium earth orbit satellite, a high earth orbit satellite, and the like. The satellite can also refer to a non-ground base station or a non-ground device, and the like.

[0087] As an example, V2X communication can include vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, and vehicle-to-network (V2N) communication.

[0088] A device in a communication system can send a signal to another device or receive a signal from another device. The signal can include information, signaling, or data, and the like. The device can also be replaced by an entity, a network entity, a communication device, a communication module, a node, a communication node, and the like. The device is described as an example in the embodiments of the present application.

[0089] The terminal device in the embodiments of the present application can be a device or module with corresponding communication functions for accessing the above-mentioned communication system. The terminal device can include various devices with wireless communication functions, which can be used to connect people, things, machines, etc. The terminal device can be widely used in various scenarios, such as cellular communication, D2D, V2X, peer to peer, M2M, MTC, IoT, virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart transportation, smart city UAV, robot, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery, etc. The terminal device can be a terminal in any of the above scenarios, such as an MTC terminal, an IoT terminal, etc. The terminal device can be a user equipment (UE) of the 3rd generation partnership project (3GPP) standard, a terminal, a fixed device, a mobile station device or a mobile device, a subscriber unit, a handset, a vehicle-mounted device, a wearable device, a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a wireless data card, a personal digital assistant (PDA), a computer, a tablet computer, a notebook computer, a wireless modem, a handset, a laptop computer, a computer with wireless transceiver function, a smart book, a vehicle, a satellite, a global positioning system (GPS) device, a target tracking device, an aircraft (such as a drone, a helicopter, a multi-copter, a quad-copter, or an airplane, etc.), a ship, a remote control device, a smart home device, an industrial device, a transport vehicle with wireless communication function, a communication module, a road side unit (RSU) with terminal function, or a device built-in the above-mentioned device (such as a communication module, a modem or a chip in the above-mentioned device, etc.), or other processing devices connected to the wireless modem.

[0090] It should be understood that in some scenarios, the UE can also be used as a base station. For example, the UE can act as a scheduling entity, which provides sidelink signals between UEs in V2X, D2D or peer to peer scenarios, etc.

[0091] In the embodiments of the present application, the apparatus for implementing the function of the terminal device, i.e., the terminal apparatus, can be a terminal device or an apparatus capable of supporting the terminal device to implement the function, such as a chip system or a chip or a circuit or a communication module (i.e., a communication module performing a communication function), which can be installed in the terminal device. In the embodiments of the present application, the chip system can be composed of a chip or can include a chip and other discrete devices. In addition, the apparatus can further be configured with program instructions for performing the corresponding communication function.

[0092] The network device in the embodiments of the present application can be a device or a module with a corresponding communication function. The network device can be a device for communicating with the terminal device, and the network device can also be referred to as an access network device or a radio access network device, such as a network device, which can be a base station. The network device in the embodiments of the present application can refer to a radio access network (RAN) node (or device) for accessing the terminal device to a wireless network. The base station can broadly cover various names in the following or be replaced by the following names, such as: Node B (NodeB), evolved Node B (eNB), next generation Node B (gNB), relay station, access point, transmitting and receiving point (TRP), transmission point, primary station, secondary station, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. The base station can also refer to a communication module, a modem, or a chip for being disposed in the foregoing devices or apparatuses. The base station can also be a mobile switching center and a device assuming a base station function in D2D, V2X, M2M communication, a network side device in a future communication network, a device assuming a base station function in a future communication system, etc. The base station can support networks of the same or different access technologies. The embodiments of the present application do not limit the specific technologies and specific device forms adopted by the network device.

[0093] A base station can be fixed, or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, with one or more cells moving according to the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0094] In some deployments, the network device mentioned in embodiments of the present application can be a device including a CU, or a DU, or a device including a CU and a DU, or a control plane CU node (central unit-control plane (CU-CP)) and a user plane CU node (central unit-user plane (CU-UP)), and a DU node.

[0095] In some deployments, a plurality of RAN nodes cooperate to assist a terminal device to implement wireless access, and different RAN nodes respectively implement part of the functions of a base station. For example, a RAN node can be a CU, a DU, a CU-CP, a CU-UP, or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can also be included in the same network element, such as a BBU. The RU can be included in a radio frequency device or a radio frequency unit, such as an RRU, an AAU, or an RRH.

[0096] In different systems, the CU (or CU-CP and CU-UP), DU, or RU can also have different names, but those skilled in the art can understand their meanings. For example, the wireless access network can also be an open radio access network (O-RAN) architecture, in which the CU can also be referred to as an open CU (O-CU), the DU can also be referred to as an open DU (O-DU), the CU-CP can also be referred to as an open CU-CP (O-CU-CP), the CU-UP can also be referred to as an open CU-UP (O-CU-UP), and the RU can also be referred to as an open RU (O-RU). Any of the CU (or CU-CP, CU-UP), DU, and RU in the present application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0097] In the embodiments of the present application, the apparatus for implementing the function of the network device can be a network device, or an apparatus capable of supporting the network device to implement the function, such as a chip system or a chip or a circuit or a communication module (i.e., a communication module performing a communication function), which can be installed in the network device. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices. In addition, program instructions for performing corresponding communication functions can also be configured in the apparatus. In the embodiments of the present application, only the apparatus for implementing the function of the network device is taken as an example of the network device, and the scheme of the embodiments of the present application is not limited.

[0098] The network device and the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on water; and can also be deployed on airplanes, balloons and satellites in the air. The scenarios in which the network device and the terminal device are located are not limited in the embodiments of the present application.

[0099] In combination with FIG. 1, a communication system suitable for the embodiments of the present application is briefly introduced as follows.

[0100] Referring to FIG. 1, as an example, FIG. 1 is a schematic diagram of a wireless communication system suitable for the embodiments of the present application. As shown in FIG. 1, the wireless communication system includes a radio access network 100. The radio access network 100 can be a next-generation (for example, future or higher version) radio access network, or a traditional (for example, 5G, 4G, 3G or 2G) radio access network. One or more terminal devices (120a-120j, collectively referred to as 120) can be connected to each other or connected to one or more network devices (110a, 110b, collectively referred to as 110) in the radio access network 100. The network elements in the wireless communication system are connected through an interface (for example, NG, Xn), or connected through an air interface.

[0101] In the communication between the network device and the terminal device, the network device can manage one or more cells, and each cell can include at least one terminal device. The cell can be understood as an area within the coverage range of the wireless signal of the network device.

[0102] FIG. 1 is only a schematic diagram, and the wireless communication system can also include other devices, such as core network devices, wireless relay devices and / or wireless backhaul devices, etc., which are not shown in FIG. 1.

[0103] For the convenience of understanding the embodiments of the present application, the terms involved in the present application are briefly explained.

[0104] 1、wake up circuit: or called wake up receiver / radio (WUR) or low-power wake up receiver (LP-WUR) or wake up module, which can be understood as a separate low-power small circuit, such as a circuit used by a terminal device in an idle state. The low-power small circuit can be implemented using a simple structure of a separate small circuit or chip, and the power consumption is low. It can be understood that the wake up circuit is only named for distinction, and its specific name does not limit the protection scope of the present application, for example, without loss of generality, the wake up circuit can also be described as a first circuit (or a first module). Hereinafter, it is uniformly described as a wake up circuit.

[0105] The signal received by the terminal device through the wake up circuit can be called as transmission on a wake up link, wherein the wake up link represents a connection relationship between the terminal device and the network device, which is a logical concept rather than a physical entity. It can be understood that the wake up link is only named for distinction, and its specific name does not limit the protection scope of the present application, for example, without loss of generality, the wake up link can also be described as a first link. Hereinafter, it is uniformly described as a wake up link.

[0106] The signal received by the terminal device using the wake up circuit can be called as a wake up signal (WUS) or a low power wake up signal (LP-WUS). It can be understood that the wake up signal is only named for distinction, and its specific name does not limit the protection scope of the present application, for example, without loss of generality, the wake up signal can also be called as a signal. Hereinafter, it is uniformly described as a wake up signal.

[0107] 2、main circuit: or called main receiver (MR) or main module, which can be understood as a circuit used by the terminal device when normally transmitting data, or a circuit used by the terminal device when transmitting data in a connected state. When the terminal device transmits data through the main circuit, the power consumption is large. It can be understood that the main circuit is only named for distinction, and its specific name does not limit the protection scope of the present application, for example, without loss of generality, the main circuit can also be described as a second circuit (or a second module). Hereinafter, it is uniformly described as a main circuit.

[0108] The signal received by the terminal device through the main circuit can be called as transmission on a main link, wherein the main link represents a connection relationship between the terminal device and the network device, which is a logical concept rather than a physical entity. It can be understood that the main link is only named for distinction, and its specific name does not limit the protection scope of the present application, for example, without loss of generality, the main link can also be described as a second link. Hereinafter, it is uniformly described as a main link.

[0109] Hereinafter, for the sake of distinction, the signal transmitted by the terminal device using the main circuit is referred to as a data signal.

[0110] Referring to FIG. 2, as an example, FIG. 2 is a schematic diagram of the main circuit and the wake-up circuit.

[0111] As shown in FIG. 2, the terminal device can receive (or detect, or monitor) the wake-up signal through the wake-up circuit, and the terminal device can receive the data signal through the main circuit. It is assumed that the terminal device receives the wake-up signal through the wake-up circuit. If the terminal device does not detect the wake-up signal, it continues to receive the wake-up signal through the wake-up circuit, and the main circuit can be in a closed state (or a sleep state); if the terminal device detects the wake-up signal, it triggers the wake-up of the main circuit, i.e., causes the main circuit to be in / switch to an open state (or referred to as a working state, or referred to as an active state). After the main circuit is turned on, the terminal device can transmit the data signal through the main circuit.

[0112] 3. On off key (OOK) modulation: using the presence or absence of signal transmission to modulate information, and the corresponding wake-up circuit can use the envelope detection method to receive the signal. OOK modulation technology can realize demodulation with a receiver with very low complexity, so as to achieve the low power consumption goal of the wake-up circuit. In order to ensure the power consumption benefit, the wake-up signal can use OOK modulation. It can be understood that the wake-up signal can also use other modulation methods, which are not limited.

[0113] When the signal uses OOK modulation, each bit (i.e., the coded bit) can correspond to a symbol. Equivalently, a symbol can also be referred to as a chip, or other names, which are not limited here.

[0114] For example, when the bit is "1", there is signal emission within the symbol length (i.e., the signal transmission power within the symbol length is not 0); when the bit is "0", there is no signal emission within the symbol length (i.e., the signal transmission power within the symbol length is 0). Or it can also be understood that in OOK modulation, if energy is transmitted, it represents "1", and if no energy is transmitted, it represents "0".

[0115] For another example, when the bit is "0", there is signal emission within the symbol length (i.e., the signal transmission power within the symbol length is not 0); when the bit is "1", there is no signal emission within the symbol length (i.e., the signal transmission power within the symbol length is 0). Or it can also be understood that in OOK modulation, if energy is transmitted, it represents "0", and if no energy is transmitted, it represents "1".

[0116] Hereinafter, for the convenience of description, it is exemplarily illustrated that when the bit is "1", there is signal emission in the length of the symbol; and when the bit is "0", there is no signal emission in the length of the symbol.

[0117] In addition, for the convenience of description, if there is signal emission in a symbol, the symbol is recorded as an ON symbol; and if there is no signal emission in a symbol, the symbol is recorded as an OFF symbol. Taking the example that when the bit is "1", there is signal emission in the length of the symbol; and when the bit is "0", there is no signal emission in the length of the symbol, the ON symbol indicates that the information bit is "1", and the OFF symbol indicates that the information bit is "0". The ON symbol can also be referred to as an ON signal, and the OFF symbol can also be referred to as an OFF signal. For the sake of unity, hereinafter, both the ON symbol and the OFF symbol are described.

[0118] The signal amplitude of the ON symbol is greater than or equal to a first threshold value, and the signal amplitude of the OFF symbol is less than or equal to a second threshold value; or, the signal amplitude of the ON symbol is greater than the signal amplitude of the OFF symbol; or, in a preset time period, the signal amplitude of the ON symbol is greater than the signal amplitude of the OFF symbol; or, the signal power of the ON symbol is greater than the signal power of the OFF symbol; or, in a preset time period, the signal power of the ON symbol is greater than the signal power of the OFF symbol; or, the signal power of the ON symbol is greater than or equal to a first threshold value, and the signal power of the OFF symbol is less than or equal to a second threshold value; or, in a preset time period, the signal power of the ON symbol is greater than or equal to a first threshold value, and the signal power of the OFF symbol is less than or equal to a second threshold value; or, the signal level value of the ON symbol is greater than the signal level value of the OFF symbol; or, in a preset time period, the signal level value of the ON symbol is greater than the signal level value of the OFF symbol; or, the signal level value of the ON symbol is greater than or equal to a first threshold value, and the signal level value of the OFF symbol is less than or equal to a second threshold value; or, in a preset time period, the signal level value of the ON symbol is greater than or equal to a first threshold value, and the signal level value of the OFF symbol is less than or equal to a second threshold value; or, the ON symbol indicates (or corresponds to, or represents) a first bit value, and the OFF symbol indicates (or corresponds to, or represents) a second bit value. The first bit value and the second bit value are different. In an example, the first bit value is "1", and the second bit value is "0".

[0119] In addition, the OOK symbol mentioned hereinafter indicates a symbol obtained by OOK modulation. The OOK symbol can be an ON symbol, or can also be an OFF symbol. For example, if the information bit is "1", the OOK symbol obtained by OOK modulation is an ON symbol, and if the information bit is "0", the OOK symbol obtained by OOK modulation is an OFF symbol. The OOK symbol can also be referred to as an OOK signal. For the sake of unity, hereinafter, both the OOK symbol and the OOK signal are described.

[0120] Referring to FIG. 3, as an example, FIG. 3 is a waveform diagram when a signal is modulated by OOK.

[0121] As an example, it is assumed that when a bit is "1", a signal is sent in an OOK symbol length; when a bit is "0", no signal is sent in an OOK symbol length, and thus the waveform shown in FIG. 3 can represent "0100" four bits, that is, the first is an OFF symbol, the second is an ON symbol, and the third and fourth are OFF symbols. As shown in FIG. 3, a communication system generally sends using a certain frequency, and a sending signal needs to be modulated on a carrier. At a receiving end, the receiving end detects an envelope (or energy) of a received signal to determine whether an OOK symbol corresponds to a bit "0" or a bit "1", thereby completing demodulation.

[0122] After a signal passes through a channel, distortion can occur due to an influence of a channel state. Therefore, in order to determine whether a signal corresponds to a bit "0" or a bit "1", a receiving end can compare a signal level value of a received signal with a threshold. For example, if a signal level value received by a receiving end is greater than the threshold, it indicates that the signal corresponds to a bit "1"; if a signal level value received by a receiving end is less than the threshold, it indicates that the signal corresponds to a bit "0". However, it is difficult to set the threshold. For example, if the threshold is not selected properly, it can cause demodulation errors. In order to solve this problem, one possible way is to use Manchester coding.

[0123] Manchester coding is a kind of bi-phase coding, which can represent a bit "0" or a bit "1" through a high-low conversion of a level. For example, through Manchester coding, an original bit "0" can be coded as a bit "10", and an original bit "1" can be coded as a bit "01", and for distinction, the original bits after coding, such as bits "10" and "01", can be referred to as coded bits. A sending end can send 1 bit of original information using 2 OOK symbols when sending a signal, and if an original bit "0" is coded as a bit "10" and an original bit "1" is coded as a bit "01", the original bit "0" corresponds to an ON symbol followed by an OFF symbol, and the original bit "1" corresponds to an OFF symbol followed by an ON symbol. A receiving end can compare a relative size of signal power (or signal amplitude) in adjacent two OOK symbols when demodulating a signal after Manchester coding. If signal power (or signal amplitude) in a preceding OOK symbol is greater than signal power (or signal amplitude) in a following OOK symbol, it is considered that a received information bit is "0", and vice versa. In this way, an absolute threshold can be avoided to make a decision.

[0124] It can be understood that the above is exemplarily described by taking the example that the original bit "0" is encoded as the bit "10" and the original bit "1" is encoded as the bit "01", and this is not limited thereto. For example, the original bit "0" is encoded as the bit "01" and the original bit "1" is encoded as the bit "10".

[0125] 4. Monitoring of the wake-up signal: Before the terminal device starts to monitor the wake-up signal in the connected state, the network device will first configure the related parameters of the wake-up signal. The configuration parameters of the wake-up signal may include at least one of the following, for example: the time domain monitoring position (such as monitoring occasion (MO)) of the wake-up signal, the frequency domain resource position of the wake-up signal, the signal length of the wake-up signal, the format of the wake-up signal, and the like. The time domain monitoring position of the wake-up signal refers to the time domain resource position for monitoring the wake-up signal, such as the wake-up signal occasion or the low-power wake-up signal occasion (LP-WUS occasion, LO). One LO may include one or more MOs, that is, the time domain monitoring position of the wake-up signal may include one or more MOs. The MO may also be referred to as the wake-up signal MO (LP-WUS MO). The MO can be a basic time unit when the wake-up circuit is working. One wake-up signal may occupy one or more MOs. The MO and the OFDM symbol are similar concepts, that is, the MO is a unit (such as the minimum unit) of time domain resource scheduling, that is, a time unit (or time domain unit) can be an MO. As an example, one MO includes one or more OOK symbols, or one MO includes one or more OFDM (orthogonal frequency division multiplexing) symbols, and the like.

[0126] In the connected state, after the network device configures the related parameters of the wake-up signal, the terminal device may not start to monitor the wake-up signal immediately, but may start to monitor the wake-up signal in some cases. Two possible cases are introduced below.

[0127] In a first possible scenario, the network device indicates the terminal device to start monitoring the wake-up signal through layer 1 / layer 2 signaling (L1 / L2 signaling), for example, downlink control information (DCI) or medium access control (MAC) control element (CE) (MAC CE). For example, the network device sends a DCI or MAC CE, which is specially used to indicate the terminal device to start monitoring the wake-up signal; accordingly, the terminal device starts switching from monitoring a physical downlink control channel (PDCCH) to monitoring the wake-up signal after receiving the indication. In some cases, when the terminal device has strong capability, it is also possible to monitor the PDCCH and the wake-up signal simultaneously, that is, the terminal device always maintains monitoring the wake-up signal, and in this case, the L1 / L2 signaling can be understood as being used to indicate to stop monitoring the PDCCH.

[0128] In a second possible scenario, the terminal device monitors the wake-up signal under the control of some conditions. For example, the terminal device monitors the wake-up signal under the control of a timer, that is, when the timer expires, the terminal device switches from monitoring the PDCCH to monitoring the wake-up signal. Similarly, when the terminal device has strong capability, it is also possible to monitor the PDCCH and the wake-up signal simultaneously, that is, the terminal device always maintains monitoring the wake-up signal, and in this case, the timer can be understood as being used to trigger to stop monitoring the PDCCH.

[0129] 5. Quasi-co-location (QCL): or quasi-situation, which can be used to define the relationship between antenna ports. Since the antenna port is defined by the reference signal (RS), QCL essentially refers to the relationship between reference signals. One of the reasons for introducing QCL is that the reference signal cannot be too dense, so some characteristics may not be able to be measured, and in this case, the corresponding characteristics can be obtained from other reference signals through the QCL relationship, thereby reducing the density of the reference signal.

[0130] Signals with QCL relationship have the same parameters, or signals corresponding to antenna port pairs with QCL relationship have the same parameters, or the parameters of one antenna port can be used to determine the parameters of another antenna port with QCL relationship to the antenna port, or the two antenna ports have the same parameters, or the parameter difference between the two antenna ports is less than a certain threshold. Wherein, the parameters can include one or more of the following: delay spread, doppler spread, doppler shift, average delay, spatial Rx parameters.

[0131] As an example, the QCL relationship can be divided into the following four types based on different parameters: type A, type B, type C, and type D.

[0132] Type A: Doppler shift, doppler spread, average delay, delay spread. As an example, the QCL relationship of type A can be used to obtain channel estimation information, such as including: Doppler shift, doppler spread, average delay, delay spread, so that the terminal device obtains a comprehensive description of the characteristics of the reference signal (such as demodulation reference signal (DMRS)) for demodulating the channel.

[0133] Type B: Doppler shift, doppler spread. As an example, the QCL relationship of type B can be used to obtain channel estimation information, such as including: Doppler shift, doppler spread.

[0134] Type C: Doppler shift, average delay. As an example, the QCL relationship of type C can be used to obtain measurement information such as reference signal receiving power (RSRP), integrate Doppler shift and delay characteristics from reference signals, and further accurate time-frequency domain synchronization.

[0135] Type D: Spatial reception parameters. As an example, the QCL relationship of type D can be used to assist terminal device beamforming, e.g., the terminal device can use the spatial parameter information obtained from the channel state information reference signal (CSI-RS) that satisfies the QCL relationship to assist terminal device beamforming, for receiving and demodulating PDCCH and physical downlink shared channel (PDSCH).

[0136] As an example, the spatial reception parameters can include one or more of the following: angle of arrival (AOA), average AOA, AOA spread, angle of departure (AOD), average angle of departure AOD, AOD spread, receive antenna spatial correlation parameters, transmit antenna spatial correlation parameters, transmit beam, receive beam, and resource identity.

[0137] 6. Transmission configuration indicator (TCI): can be used to indicate a TCI-state (TCI-state or TCI state). The TCI-state can be used to indicate the QCL relationship between two reference signals. One TCI-state can be identified by one TCI-state index, in other words, one TCI-state index can uniquely identify one TCI-state.

[0138] The TCI-state includes several parameters. As an example, each TCI-state includes one own TCI-state index and at least one QCL information (QCL-Info). As an example, each QCL-Info (or each TCI-state) includes: reference signal resource identity (or the identity of the reference signal), and the associated QCL type (qcl-Type), which indicates which reference signal resource constitutes which type of QCL relationship.

[0139] The reference signal resource can be used to configure the transmission attribute of the reference signal, for example, time-frequency resource position, port mapping relationship, power factor, and scrambling code, etc. The sending end can send the reference signal based on the reference signal resource, and the receiving end can receive the reference signal based on the reference signal resource. In order to distinguish different reference signal resources, each reference signal resource can correspond to an identifier of the reference signal resource. The reference signal resource in the TCI-state refers to the reference signal resource used in the beam training process. Since in the beam training process, the network device sends the reference signal through different transmission beams based on different reference signal resources, the reference signals sent through different transmission beams can be associated with different reference signal resources; the terminal device receives the reference signal through different receiving beams based on different reference signal resources, so the reference signals received through different receiving beams can also be associated with different reference signal resources. Therefore, in the beam training process, the terminal device can refer to the correspondence between the reference signal resource identifier and the receiving beam, and the network device can maintain the correspondence between the reference signal resource identifier and the transmission beam. By referring to the reference signal resource identifier, the pairing relationship between the receiving beam and the transmission beam can be established.

[0140] The qcl-Type can have four values {typeA, typeB, typeC, typeD}.

[0141] In data transmission and channel measurement, a beam can correspond to a reference signal resource, such as one beam corresponding to one reference signal resource. Therefore, the QCL relationship with which reference signal resource can also refer to the QCL relationship with which beam.

[0142] The following lists a specific example. Assume that a TCI-state includes:

[0143] Type 1: source RS1->QCL type X;

[0144] Type 2: source RS2->QCL type Y.

[0145] It indicates that the TCI-state has a typeX type QCL relationship with the source RS (source RS) 1, and the TCI-state has a typeY type QCL relationship with the source RS2. Wherein, typeX is one of typeA, typeB, typeC, typeD, typeY is one of typeA, typeB, typeC, typeD, typeX and typeY can be the same or different, and are not limited.

[0146] The following is a specific example to illustrate the use of TCI-state.

[0147] The network device can configure a TCI-state associated with one channel or signal (e.g., referred to as signal B) to the terminal device through signaling (e.g., radio resource control (RRC) signaling). Based on the foregoing configuration mode of the TCI-state, assuming that the TCI-state includes a reference signal A -> QCL typeD, after the terminal device completes channel estimation according to the reference signal A, the terminal device can determine what kind of reception parameters or signal processing method should be used when receiving the signal B.

[0148] Taking the PDCCH of the signal B as an example, the determination of the TCI state associated with the PDCCH is specifically explained. When the terminal device monitors the PDCCH, the terminal device can monitor the PDCCH according to the search space. The configuration information of the search space can associate one search space with one control resource set (CORESET), and the configuration information of the CORESET includes one or more TCI-state indexes, which associate the CORESET with a certain reference signal. Therefore, when the terminal device receives the PDCCH, the reception parameters of the PDCCH can be determined according to the position (determined by the search space and the CORESET) at which the PDCCH is received.

[0149] When the configuration information of one CORESET includes one TCI-state index, the PDCCH monitoring related to the CORESET determines the QCL information according to the TCI-state identified by the TCI-state index. When the configuration information of one CORESET includes multiple TCI-state indexes, the network device can activate one of the multiple TCI-states through one signaling (e.g., MAC CE), and the activated TCI-state can be used to determine the QCL information.

[0150] When the terminal device monitors the PDCCH, the terminal device can monitor the PDCCH according to multiple search spaces, different search spaces can be associated with different CORESETs, and different CORESETs can be associated with different TCI-states. Therefore, when the terminal device monitors the PDCCH, the terminal device can determine different QCL information at different monitoring positions, and further determine monitoring parameters according to the determined QCL information, and monitor the PDCCH based on the monitoring parameters.

[0151] The method provided by the embodiments of the present application will be described in detail below with reference to the drawings. The embodiments provided by the present application can be applied to the scenario shown in the above figures, without limitation. In addition, the terms involved below can refer to the previous explanations, which will not be repeated hereinafter. In addition, the following is described by taking a terminal device and a network device as examples for illustrative purposes. The terminal device can be replaced by a terminal device or a component (for example, a chip or a chip system or a circuit or a communication module) of the terminal device, and the network device can be replaced by a component (for example, a chip or a chip system or a circuit or a communication module) of the network device. In addition, the steps described below can also be divided into being executed by multiple execution subjects, which can be logically and / or physically separated.

[0152] Referring to FIG. 4, as an example, FIG. 4 is a schematic diagram of a communication method 400 provided by an embodiment of the present application. The method 400 shown in FIG. 4 can include the following steps.

[0153] The method 400 includes step S430. Optionally, the method 400 includes steps S410 and S420.

[0154] S410, the terminal device receives indication information, the indication information indicating to start monitoring the wake-up signal.

[0155] For example, the indication information is L1 / L2 signaling, in other words, the terminal device receives L1 / L2 signaling, and the L1 / L2 signaling indicates the terminal device to start monitoring the wake-up signal. Wherein, the L1 / L2 signaling is, for example, DCI or MAC CE. For another example, the indication information is RRC signaling, in other words, the terminal device receives RRC signaling (for example, RRC signaling for configuring wake-up signal parameters), and the RRC signaling indicates the terminal device to start monitoring the wake-up signal.

[0156] As for the specific content indicated by the indication information, it is not limited as long as the terminal device determines the scheme to start monitoring the wake-up signal based on the indication information. For example, the indication information indicates to start monitoring the wake-up signal; for another example, the indication information indicates to stop monitoring the PDCCH; for another example, the indication information indicates to switch from monitoring the PDCCH to monitoring the wake-up signal. In the embodiments of the present application, the description related to “starting to monitor the wake-up signal” can be replaced by any of the following: stopping monitoring the PDCCH, switching from monitoring the PDCCH to monitoring the wake-up signal. For example, the terminal device determines to start monitoring the wake-up signal based on the timer, which can be replaced by: the terminal device determines to stop monitoring the PDCCH based on the timer; or can be replaced by: the terminal device determines to switch from monitoring the PDCCH to monitoring the wake-up signal based on the timer. For this, it will not be repeated hereinafter.

[0157] The S410 is an example, and embodiments of the present application are not limited thereto. In other words, the terminal device can determine whether to start monitoring the wake-up signal based on other manners. For example, the terminal device can determine whether to start monitoring the wake-up signal based on some implicit conditions (such as a timer). For example, after the timer expires, the terminal device switches from monitoring the PDCCH to monitoring the wake-up signal. In embodiments of the present application, the description related to "timer expiration" can be replaced by any of the following: the timing duration of the timer reaches a first duration, the timer stops timing. "After the timer expires" and "before the timer expires" can be replaced by "the timer has expired" and "the timer has not expired", respectively. For this reason, further description is not repeated.

[0158] S420, the terminal device determines the TCI-state associated with the wake-up signal.

[0159] Specifically, the terminal device determines the TCI-state index associated with the wake-up signal, and then can obtain the information contained in the TCI-state. Optionally, the TCI-state associated with the wake-up signal includes at least one of the following parameters: a reference signal (such as an identifier of the reference signal), a reference signal resource (such as a reference signal resource identifier), and an associated QCL type, which indicates which reference signal constitutes which type of QCL relationship. One TCI-state can include one reference signal and the associated QCL type, or can include multiple reference signals and the associated QCL type of each reference signal, which is not limited.

[0160] The TCI-state associated with the wake-up signal, or the TCI-state of the wake-up signal, indicates that the wake-up signal has a QCL relationship with the reference signal (or the reference signal resource) in the TCI-state. For example, the TCI-state associated with the wake-up signal includes a QCL type (such as typeX) and signal #1, which indicates that the wake-up signal has a typeX type of QCL relationship with signal #1, wherein typeX is one of typeA, typeB, typeC, and typeD.

[0161] As an example, the terminal device determines the TCI-state associated with the wake-up signal in any of the following manners.

[0162] In one possible implementation, the terminal device determines the TCI-state associated with the wake-up signal based on the indication information. Specifically, the indication information indicates to start monitoring the wake-up signal, and the indication information also indicates the TCI-state associated with the wake-up signal.

[0163] In another possible implementation, the TCI-state associated with the wake-up signal is preset (or configured, or pre-configured, or default, or predefined). Specifically, the network device configures the TCI-state associated with the wake-up signal before the terminal device starts to monitor the wake-up signal, and the terminal device starts to monitor the wake-up signal, such as based on the indication information or the timer, and directly monitors the wake-up signal based on the pre-configured TCI-state. For example, the network device can configure the pre-configured TCI-state through RRC signaling.

[0164] In another possible implementation, the terminal device determines the TCI-state associated with the wake-up signal based on a preset rule. For example, the preset rule is to determine the TCI-state associated with the wake-up signal based on the last received signaling or signal (received through the main circuit, referred to as signaling #A or signal #A for distinction) before starting to monitor the wake-up signal. In this case, the terminal device determines the TCI-state associated with the wake-up signal based on the preset rule, which can be replaced by that the terminal device determines the TCI-state associated with the wake-up signal based on the last received signaling or signal before starting to monitor the wake-up signal. For example, the signaling #A or signal #A can be any of the following: PDCCH, PDSCH, reference signal (such as synchronization signal block (SSB) or CSI-RS, etc.), and the like. Specifically, the terminal device can determine the TCI-state associated with the wake-up signal based on the last received signaling #A or signal #A (or the TCI-state associated with the signaling #A or signal #A) before starting to monitor the wake-up signal. For example, the TCI-state of the CORESET associated with the last received PDCCH before starting to monitor the wake-up signal is the TCI-state associated with the wake-up signal. For another example, the TCI-state of the PDSCH last received before starting to monitor the wake-up signal is the TCI-state associated with the wake-up signal. For another example, the TCI-state of the reference signal last received before starting to monitor the wake-up signal is the TCI-state associated with the wake-up signal.

[0165] The above three methods will be described in detail below.

[0166] S430, the terminal device monitors the wake-up signal according to the TCI-state associated with the wake-up signal.

[0167] In one possible scenario, the method 400 comprises step S410, in which the terminal device starts to monitor the wake-up signal in response to the indication information. The timing at which the terminal device monitors the wake-up signal is not limited. For example, the terminal device starts to monitor the wake-up signal immediately after receiving the indication information. For another example, the terminal device starts to monitor the wake-up signal after a period of time after receiving the indication information.

[0168] In another possible scenario, the terminal device starts to monitor the wake-up signal based on the timer timeout, in other words, the terminal device starts to switch from monitoring the PDCCH to monitoring the wake-up signal after the timer timeout.

[0169] In another possible scenario, the terminal device starts to monitor the wake-up signal in response to the indication information in a certain time period (e.g., the first time period), and starts to monitor the wake-up signal based on the timer timeout in a certain time period (e.g., the second time period). In this scenario, further details are described below in connection with FIG. 8.

[0170] The above scenarios are examples for illustration, and the embodiments of the present application do not limit the conditions for triggering the terminal device to monitor the wake-up signal.

[0171] Optionally, in S430, the terminal device monitors the wake-up signal according to the TCI-state associated with the wake-up signal, comprising: the terminal device monitors the wake-up signal according to the TCI-state associated with the wake-up signal in a time period (e.g., the first time period, or the second time period).

[0172] For ease of description, time period #A is used for introduction. The time period #A (e.g., the first time period, or the second time period) represents the time domain monitoring position of the wake-up signal. The starting time of the time period #A is the first time, the first time is the time at which the terminal device starts to monitor the wake-up signal in response to the indication information, and the ending time of the time period #A is the time at which the terminal device stops monitoring the wake-up signal after the first time. Alternatively, the starting time of the time period #A is the first time, the first time is the time at which the terminal device starts to monitor the wake-up signal in response to the indication information, and the interval between the ending time of the time period #A and the second time is greater than or equal to a preset value, the ending time of the time period #A is before the second time, and the second time is the time at which the terminal device starts to monitor the PDCCH after the first time. The preset value is greater than or equal to 0. Alternatively, the time period #A can be understood as: the time period between starting to monitor the wake-up signal and starting to monitor the PDCCH; or the time period between switching from monitoring the PDCCH to monitoring the wake-up signal and starting to monitor the PDCCH.

[0173] Referring to FIG. 5, as an example, FIG. 5 is a schematic diagram of the relationship between the wake-up signal and the TCI-state, which is applicable to the embodiments of the present application. As shown in FIG. 5, the time period #A is time period #A1 or time period #A2.

[0174] For example, when the QCL relationship in the TCI-state#A is configured as one of Type A, or B, or C, the terminal device monitoring the wake-up signal based on the TCI-state#A can be understood as: the terminal device can demodulate the wake-up signal according to the indication of the TCI-state#A.

[0175] For example, when the QCL relationship in the TCI-state#A is configured as one of Type A, or B, or C, the terminal device monitoring the wake-up signal based on the TCI-state#A can be understood as: the terminal device can demodulate the wake-up signal according to the indication of the TCI-state#A.

[0176] For example, when the QCL relationship in the TCI-state#A is configured as one of Type A, or B, or C, the terminal device monitoring the wake-up signal based on the TCI-state#A can be understood as: the terminal device can demodulate the wake-up signal according to the indication of the TCI-state#A.

[0177] For example, when the QCL relationship in the TCI-state#A is configured as one of Type A, or B, or C, the terminal device monitoring the wake-up signal based on the TCI-state#A can be understood as: the terminal device can demodulate the wake-up signal according to the indication of the TCI-state#A.

[0178] Optionally, the method 400 further includes: the terminal device receives configuration information of N TCI-states, N being an integer greater than 1 or equal to 1. The TCI-state associated with the wake-up signal in S420 belongs to the N TCI-states. For example, the TCI-state associated with the wake-up signal is a certain TCI-state among the N TCI-states; for another example, the TCI-state associated with the wake-up signal is multiple TCI-states among the N TCI-states.

[0179] As an example, the configuration information of each TCI-state includes at least one of the following parameters: a reference signal (such as an identifier of a reference signal), a reference signal resource (such as a reference signal resource identifier), and an associated QCL type. The configuration information of a TCI-state may, for example, include an identifier of a reference signal and an associated QCL type, or may include identifiers of multiple reference signals and associated QCL types of the respective reference signals, without limitation.

[0180] The above is an example, and embodiments of the present application are not limited thereto. In other words, the terminal device can also learn the configuration information of the N TCI-states based on other manners. For example, the configuration information of the N TCI-states is pre-configured at the terminal device side, that is, the configuration information of the N TCI-states is configured at the terminal device side before the terminal device starts to monitor the wake-up signal.

[0181] Optionally, the TCI-state associated with the wake-up signal is one TCI-state, or the TCI-state associated with the wake-up signal is multiple TCI-states. The two modes are described in detail below.

[0182] In a first possible implementation, the TCI-state associated with the wake-up signal is one TCI-state, that is, the wake-up signal is associated with one TCI-state, which means that the terminal device monitors the wake-up signal based on the same TCI-state when monitoring the wake-up signal in a continuous period of time (i.e., time period #A). The terminal device monitoring the wake-up signal in a continuous period of time does not mean that the terminal device monitors the wake-up signal all the time, but means that the terminal device monitors the wake-up signal in the period of time, rather than monitoring the PDCCH.

[0183] For example, as shown in FIG. 5, the terminal device monitors the wake-up signal based on the same TCI-state (i.e., TCI-state #1) when monitoring the wake-up signal in time period #A1, and the terminal device monitors the wake-up signal based on the same TCI-state (i.e., TCI-state #2) when monitoring the wake-up signal in time period #A2. In addition, the terminal device can continuously monitor the wake-up signal or non-continuously monitor the wake-up signal in time period #A1 or time period #A2. For example, as shown in (a) of FIG. 5, the terminal device continuously monitors the wake-up signal in time period #A1 and time period #A2. For example, as shown in (b) of FIG. 5, the terminal device non-continuously monitors the wake-up signal in time period #A1 and time period #A2. For example, as shown in (c) of FIG. 5, the terminal device continuously monitors the wake-up signal in time period #A1 and non-continuously monitors the wake-up signal in time period #A2.

[0184] In a second possible implementation, the TCI-state associated with the wake-up signal is multiple TCI-states, i.e., the wake-up signal is associated with multiple TCI-states, which means that the terminal device monitors the wake-up signal based on different TCI-states in a continuous period of time (i.e., time period #A). To distinguish, the multiple TCI-states are referred to as P TCI-states, and P is an integer greater than 1. When the terminal device monitors the wake-up signal in the time period #A, the terminal device can monitor the wake-up signal based on different TCI-states in different time domain units. For example, the P TCI-states include a first TCI-state and a second TCI-state, and in S430, the terminal device monitors the wake-up signal in a first time period (i.e., time period #A), which includes X1 first time domain units and X2 second time domain units. The TCI-state associated with the wake-up signal in the X1 first time domain units is the first TCI-state, and the TCI-state associated with the wake-up signal in the X2 second time domain units is the second TCI-state. X1 and X2 are integers greater than 1 or equal to 1; in other words, the terminal device monitors the wake-up signal based on the first TCI-state in the X1 first time domain units, and monitors the wake-up signal based on the second TCI-state in the X2 second time domain units. The unit of the time domain unit (such as the first time domain unit, or the second time domain unit) may, for example, be a MO, and one time domain unit may, for example, be one MO.

[0185] Referring to FIG. 6, as an example, FIG. 6 is another schematic diagram of the relationship between the wake-up signal and the TCI-state suitable for the embodiments of the present application. As shown in FIG. 6, multiple TCI-states are used during the period in which the terminal device monitors the wake-up signal (such as time period #A1 or time period #A2 shown in FIG. 5). For example, the terminal device uses a first TCI-state when monitoring the wake-up signal in a first time domain unit, and uses a second TCI-state when monitoring the wake-up signal in a second time domain unit. As an example, the first TCI-state can be indicated by first sub-information in the indication information, and the second TCI-state can be indicated by second sub-information in the indication information; or the first TCI-state and the second TCI-state can be preset; details of which are described below in connection with the terminal device determining the TCI-state associated with the wake-up signal.

[0186] Based on the implementation manner, time domain unit overlap may occur, such as overlap of the first time domain unit and the second time domain unit at a time domain position. If multiple time domain units overlap, in one possible implementation manner, the terminal device determines the TCI-state used at the overlapping position based on a preset rule. For example, X1 first time domain units and X2 second time domain units overlap at a first time domain position, and the TCI state associated with the wake-up signal at the first time domain position is determined based on a preset rule. Based on this, if multiple time domain units overlap at a time domain position (referred to as the first time domain position), the TCI-state associated with the wake-up signal at the first time domain position can be determined based on a preset rule.

[0187] Referring to FIG. 7, which is another schematic diagram of the relationship between the wake-up signal and the TCI-state suitable for embodiments of the present application as an example. As shown in FIG. 7, because the periods of the first time domain unit and the second time domain unit are different, the first time domain unit and the second time domain unit overlap at a first time domain position. The TCI-state #B used by the terminal device at the first time domain position is determined based on a preset rule.

[0188] As an example, the preset rule includes any of the following: selecting the TCI-state with the smallest TCI-state index, selecting the TCI-state with the largest TCI-state index, selecting the TCI-state with the largest configuration index, and selecting the TCI-state with the smallest configuration index. Taking the preset rule of selecting the TCI-state with the smallest TCI-state index as an example, as shown in FIG. 7, assuming that the index of the first TCI-state is smaller than the index of the second TCI-state, then the TCI-state #B associated with the wake-up signal at the first time domain position is the first TCI-state, that is, the terminal device uses the first TCI-state to monitor the wake-up signal at the first time domain position.

[0189] As an example, the terminal device can determine the TCI-state associated with the wake-up signal in any of the following ways.

[0190] In a first possible implementation, the network device indicates the TCI-state associated with the wake-up signal to the terminal device before the terminal device starts to monitor the wake-up signal each time. Specifically, as the terminal device position changes or the channel environment changes, etc., the QCL relationship of the wake-up signal can dynamically change, such as the reference signal (or reference signal resource) having the QCL relationship with the wake-up signal can dynamically change. Therefore, the network device can indicate the TCI-state associated with the wake-up signal to the terminal device when the terminal device starts to monitor the wake-up signal or before the terminal device starts to monitor the wake-up signal, so that the TCI-state associated with the wake-up signal, that is, the QCL relationship of the wake-up signal, can be dynamically adjusted. For example, each time the network device indicates the terminal device to start to monitor the wake-up signal, the TCI-state associated with the wake-up signal is dynamically adjusted according to the actual situation, and the TCI-state associated with the wake-up signal this time (or this round) is indicated to the terminal device.

[0191] Based on this mode, optionally, the TCI-state associated with the wake-up signal in S420 is determined based on the indication information, in other words, the indication information in S410 also indicates the TCI-state associated with the wake-up signal. Based on this, the network device indicates the terminal device to start to monitor the wake-up signal, and simultaneously indicates the TCI-state associated with the wake-up signal this time.

[0192] The following will be described in combination with two cases.

[0193] In a possible case, the TCI-state associated with the wake-up signal is one TCI-state.

[0194] In this case, the indication information in S410 indicates one TCI-state. Taking FIG. 5 as an example, for example, each time the terminal device switches from monitoring PDCCH to monitoring the wake-up signal, the network device indicates the TCI-state associated with the wake-up signal to the terminal device. For example, the terminal device monitors PDCCH, starts to switch from monitoring PDCCH to monitoring the wake-up signal upon receiving the indication information, and the indication information indicates that the TCI-state associated with the wake-up signal is TCI-state #1, so the terminal device monitors the wake-up signal based on TCI-state #1 when monitoring the wake-up signal, that is, monitors the wake-up signal in time period #A1. For another example, the terminal device monitors PDCCH, starts to switch from monitoring PDCCH to monitoring the wake-up signal upon receiving the indication information, and the indication information indicates that the TCI-state associated with the wake-up signal is TCI-state #2, so the terminal device monitors the wake-up signal based on TCI-state #2 when monitoring the wake-up signal, that is, monitors the wake-up signal in time period #A2.

[0195] The above is an example description, and embodiments of the present application are not limited thereto. For example, the signaling indicating the terminal device to start monitoring the wake-up signal and the signaling indicating the TCI-state can also be different signaling. For another example, before S410, the network device can first indicate the terminal device of the TCI-state associated with the wake-up signal.

[0196] Another possible case is that the TCI-state associated with the wake-up signal is multiple TCI-states.

[0197] Taking 2 TCI-states (i.e., the first TCI-state and the second TCI-state described above) as an example, optionally, the indication information includes first sub-information (or first information) and second sub-information (or second information), the first sub-information is used for monitoring the wake-up signal in X1 first time domain units, and the first sub-information indicates the first TCI-state; the second sub-information is used for monitoring the wake-up signal in X2 second time domain units, and the second sub-information indicates the second TCI-state. The terminal device can determine the first TCI-state and the second TCI-state based on the indication information.

[0198] The first sub-information and the second sub-information can be carried in the same signaling or different signaling, and are not limited.

[0199] The above describes the two cases of associating one TCI-state with the wake-up signal and associating multiple TCI-states with the wake-up signal. The following describes the specific manner of the indication information indicating the TCI-state associated with the wake-up signal, taking the indication information indicating the TCI-state associated with the wake-up signal as an example. Specifically, the indication information can explicitly indicate the TCI-state associated with the wake-up signal, or the indication information can implicitly indicate the TCI-state associated with the wake-up signal, and the following describes several examples.

[0200] Example 1: The indication information indicates the TCI-state associated with the wake-up signal. For example, the indication information indicates the index of the TCI-state associated with the wake-up signal. Based on this, the indication information can explicitly indicate the TCI-state associated with the wake-up signal.

[0201] Example 2: The indication information is carried in the DCI, and the TCI-state associated with the wake-up signal is the TCI-state of the CORESET where the DCI is located. Based on this, the indication information can implicitly indicate the TCI-state associated with the wake-up signal.

[0202] The CORESET represents a resource set used for transmitting downlink control information, and can also be referred to as a control resource region or a physical downlink control channel resource set. Specifically, the control channel can be divided into one or more CORESETs, and each CORESET can be a set of groups of resource elements (REGs). The terminal device can monitor the PDCCH on one or more CORESETs.

[0203] When the terminal device monitors the PDCCH, the terminal device can monitor the PDCCH according to the search space. The search space represents a set of candidate downlink control channels that the terminal device needs to monitor. Then, a case can occur in which the DCI in which the indication information is located is in an overlap region of multiple search spaces, and the multiple search spaces correspond to different TCI-states (for example, the multiple searches correspond to different CORESETs, and different CORESETs are associated with different TCI-states). In this case, as an example, the TCI-state associated with the wake-up signal is the TCI-state that satisfies a preset condition among the TCI-states corresponding to the multiple search spaces.

[0204] For example, the TCI-state associated with the wake-up signal is the TCI-state associated with the search space with the smallest search space index among the TCI-states corresponding to the multiple search spaces.

[0205] For another example, the TCI-state associated with the wake-up signal is the TCI-state associated with the search space with the largest search space index among the TCI-states corresponding to the multiple search spaces.

[0206] For another example, the TCI-state associated with the wake-up signal is the TCI-state with the largest CORESET index among the TCI-states corresponding to the multiple search spaces.

[0207] For another example, the TCI-state associated with the wake-up signal is the TCI-state with the smallest CORESET index among the TCI-states corresponding to the multiple search spaces.

[0208] For another example, the TCI-state associated with the wake-up signal is the TCI-state with the largest TCI-state index among the TCI-states corresponding to the multiple search spaces.

[0209] For another example, the TCI-state associated with the wake-up signal is the TCI-state with the smallest TCI-state index among the TCI-states corresponding to the multiple search spaces.

[0210] The above is an example, and embodiments of the present application are not limited thereto. As long as in the overlap area, the terminal device can determine the TCI-state associated with the wake-up signal based on a preset condition (or a preset rule), the scheme is applicable to the embodiments of the present application.

[0211] In example 3, the indication information is carried in the PDSCH, and the TCI-state associated with the wake-up signal is the TCI-state of the PDSCH. Based on this, the indication information can implicitly indicate the TCI-state associated with the wake-up signal.

[0212] In a second possible implementation, the TCI-state associated with the wake-up signal is preset (or configured, or preconfigured, or default, or predefined). In other words, the TCI-state associated with the wake-up signal can be semi-statically configured.

[0213] Based on this scheme, optionally, the TCI-state associated with the wake-up signal in S420 is preset, or the TCI-state associated with the wake-up signal in S420 is determined based on previously received configuration information.

[0214] The following describes two cases.

[0215] In one possible case, the TCI-state associated with the wake-up signal is one TCI-state.

[0216] For example, before S430, the terminal device receives configuration information, and the configuration information indicates a preset TCI-state, which can be used as the TCI-state associated with the wake-up signal. In this way, when monitoring the wake-up signal, the terminal device can directly monitor the wake-up signal based on the preset TCI-state.

[0217] The configuration information can also be referred to as wake-up signal monitoring configuration (LP-WUS monitoring configuration). That is, the terminal device receives a set of wake-up signal monitoring configuration, which is used by the terminal device to monitor the wake-up signal, and the wake-up signal monitoring configuration indicates a TCI-state, which can be used by the terminal device to monitor the wake-up signal later. As an example, the wake-up signal monitoring configuration includes an index of a TCI-state.

[0218] As an example, the wake-up signal monitoring configuration further includes at least one of: a monitoring periodicity of the wake-up signal (e.g., a LP-WUS monitoring periodicity), a monitoring duration of the wake-up signal (e.g., a LP-WUS monitoring duration), a monitoring offset value of the wake-up signal. The above parameters are briefly introduced as follows.

[0219] 1) Monitoring periodicity of the wake-up signal: also referred to as monitoring periodicity for short, refers to how long a terminal device (or a group of terminal devices) monitors the wake-up signal every time.

[0220] For example, as shown in FIG. 6, the monitoring periodicity of the wake-up signal is T. For example, for the first time domain unit, the terminal device monitors the wake-up signal every T, which can be understood as the offset between two adjacent first time domain units being T, that is, the terminal device monitors the wake-up signal in one first time domain unit, then waits for T, and then monitors the wake-up signal in another first time domain unit.

[0221] For example, as shown in FIG. 7, the monitoring periodicity of the wake-up signal is T1 or T2. For example, for the first time domain unit, the terminal device monitors the wake-up signal every T1, which can be understood as the offset between two adjacent first time domain units being T1, that is, the terminal device monitors the wake-up signal in one first time domain unit, then waits for T1, and then monitors the wake-up signal in another first time domain unit. For the second time domain unit, the terminal device monitors the wake-up signal every T2, which can be understood as the offset between two adjacent second time domain units being T2, that is, the terminal device monitors the wake-up signal in one second time domain unit, then waits for T2, and then monitors the wake-up signal in another second time domain unit.

[0222] 2) Monitoring duration of the wake-up signal: also referred to as monitoring duration or monitoring time for short, refers to the duration of monitoring the wake-up signal by a terminal device (or a group of terminal devices) each time. One wake-up signal monitoring duration can usually send one or more wake-up signals, that is, the length of one wake-up signal monitoring duration is greater than or equal to the length of one wake-up signal. As shown in FIG. 6, the monitoring duration of the wake-up signal is Q.

[0223] 3) Monitoring offset: also referred to as monitoring offset of wake-up signal, refers to the offset amount relative to the starting position in each monitoring period of wake-up signal. For example, in the example shown in FIG. 6, the monitoring offset value corresponding to the first time domain unit is x1, and the monitoring offset value corresponding to the second time domain unit is x2. The network device can configure different monitoring offset values for different terminal devices (or groups of terminal devices), so as to stagger the time domain monitoring positions of different terminal devices (or groups of terminal devices), thereby avoiding congestion or conflict of wake-up signals of too many terminal devices.

[0224] Another possible case is that the wake-up signal is associated with multiple TCI-states.

[0225] Taking 2 TCI-states as an example, optionally, before S430, the terminal device receives configuration information, the configuration information including multiple wake-up signal monitoring configurations, the multiple wake-up signal monitoring configurations including a first wake-up signal monitoring configuration and a second wake-up signal monitoring configuration, the first wake-up signal monitoring configuration being associated with a first preset TCI-state, and the second wake-up signal monitoring configuration being associated with a second preset TCI-state. Wherein, the first wake-up signal monitoring configuration being associated with the first preset TCI-state can mean that the first wake-up signal monitoring configuration indicates the first preset TCI-state, such as the first wake-up signal monitoring configuration including an index of the first preset TCI-state; the second wake-up signal monitoring configuration being associated with the second preset TCI-state can mean that the second wake-up signal monitoring configuration indicates the second preset TCI-state, such as the second wake-up signal monitoring configuration including an index of the second preset TCI-state. As an example, the wake-up signal monitoring configuration can be carried in control signaling, such as RRC signaling.

[0226] Optionally, in S430, the terminal device monitors the wake-up signal in the second time period, the second time period including X3 third time domain units and X4 fourth time domain units, the wake-up signal being associated with the first preset TCI-state in the X3 third time domain units, and the wake-up signal being associated with the second preset TCI-state in the X4 fourth time domain units, X3 and X4 being integers greater than 1 or equal to 1. In other words, the terminal device monitors the wake-up signal based on the first preset TCI-state in the X3 third time domain units, and monitors the wake-up signal based on the second preset TCI-state in the X4 fourth time domain units. Wherein, the unit of time domain unit (such as third time domain unit, or fourth time domain unit) can be MO, for example, one time domain unit can be one MO.

[0227] Two examples suitable for this case are introduced below.

[0228] In example 1, a set of TCI-states is preset, and the set of TCI-states corresponds to multiple time periods. Based on this, the preset set of TCI-states can be used for the terminal device to monitor the wake-up signal in the multiple time periods. In other words, when the terminal device monitors the wake-up signal in the multiple time periods, the set of TCI-states is used.

[0229] In this case, one time period can be understood as one second time period.

[0230] In this case, the set of TCI-states can include multiple TCI-states, which means that the TCI-state associated with the wake-up signal is the multiple TCI-states. In other words, in each time period, the terminal device monitors the wake-up signal based on different TCI-states. For example, assuming that the multiple TCI-states include a first preset TCI-state and a second preset TCI-state, each time period includes X3 third time domain units and X4 fourth time domain units, and the terminal device monitors the wake-up signal based on the first preset TCI-state in the X3 third time domain units of each time period and monitors the wake-up signal based on the second preset TCI-state in the X4 fourth time domain units of each time period.

[0231] In example 2, H sets of TCI-states are preset, and the H sets of TCI-states correspond to H time periods respectively, where H is an integer greater than 1. Based on this, the preset H sets can be used respectively for the terminal device to monitor the wake-up signal in the H time periods.

[0232] In this case, each set of TCI-states includes multiple TCI-states. The number of TCI-states included in each set of TCI-states can be the same or different.

[0233] In this case, the correspondence between the TCI-state and the time period can include the following implementation manners.

[0234] In one example, the correspondence between the TCI-state and the time period can be indicated by the network side to the terminal device. For example, configuration information indicates H sets of TCI-states, and also indicates the correspondence between the H sets of TCI-states and the H time periods, that is, the configuration information indicates the TCI-state used when each time period monitors the wake-up signal.

[0235] Another example, the correspondence between TCI-state and time period can be predefined or configured, which is not limited. For example, the configuration information indicates a group of TCI-state, and the terminal device can use the first TCI-state in the group as the TCI-state associated with the first time period, the second TCI-state in the group as the TCI-state associated with the second time period, and so on.

[0236] Taking H=2 as an example. The terminal device receives configuration information, which indicates a first group of TCI-state and a second group of TCI-state, the first group of TCI-state corresponds to the first time period, and the second group of TCI-state corresponds to the second time period. Therefore, the terminal device monitors the wake-up signal based on the first group of TCI-state in the first time period, and monitors the wake-up signal based on the second group of TCI-state in the second time period. The following takes the first group of TCI-state corresponding to the first time period as an example, and explains two cases.

[0237] One possible case, at a certain time, the network device indicates the terminal device to start monitoring the wake-up signal through signaling (such as DCI or MAC CE), and the terminal device starts monitoring the wake-up signal based on the first group of TCI-state in the first time period after receiving the signaling; at another time, the network device indicates the terminal device to start monitoring the wake-up signal through signaling, and the terminal device starts monitoring the wake-up signal based on the second group of TCI-state in the second time period after receiving the signaling; and so on. Further optionally, the network device can also carry the index of each group of TCI-state when indicating the terminal device to start monitoring the wake-up signal each time.

[0238] Another possible case, when the timer expires for the first time, the terminal device starts monitoring the wake-up signal based on the first group of TCI-state in the first time period; when the timer expires for the second time, the terminal device starts monitoring the wake-up signal based on the second group of TCI-state in the second time period; and so on.

[0239] The third possible implementation manner is that the terminal device determines the TCI-state associated with the wake-up signal based on a preset rule.

[0240] The preset rule can be predefined, indicated by the network device, configured, or default, which is not limited.

[0241] As described before, based on this way, the terminal device can determine the TCI-state associated with the wake-up signal based on the last received signaling #A or signal #A before starting to monitor the wake-up signal. Take the following example as an example: the TCI-state of the CORESET associated with the PDCCH last received by the terminal device before starting to monitor the wake-up signal is the TCI-state associated with the wake-up signal. The following introduces several examples.

[0242] Example 1, assuming that the terminal device is triggered to start monitoring the wake-up signal based on layer 1 signaling (L1 signaling), and the terminal device does not receive PDCCH between receiving the L1 signaling and starting to monitor the wake-up signal, then the TCI-state of the CORESET associated with the PDCCH where the L1 signaling is located is the TCI-state associated with the wake-up signal.

[0243] Specifically, the L1 signaling is used to trigger the terminal device to start monitoring the wake-up signal, and the L1 signaling (usually DCI) is generally carried in the PDCCH, and the terminal device does not receive PDCCH between receiving the L1 signaling and starting to monitor the wake-up signal, therefore, the PDCCH carrying the L1 signaling is the last received PDCCH by the terminal device before starting to monitor the wake-up signal, therefore, the TCI-state of the CORESET associated with the PDCCH where the L1 signaling is located is the TCI-state associated with the wake-up signal.

[0244] Example 2, assuming that the terminal device is triggered to start monitoring the wake-up signal based on L1 signaling, and the terminal device receives one or more PDCCH between receiving the L1 signaling and starting to monitor the wake-up signal, then the TCI-state of the CORESET associated with the last PDCCH in the one or more PDCCH is the TCI-state associated with the wake-up signal.

[0245] Specifically, the L1 signaling is used to trigger the terminal device to start monitoring the wake-up signal, and the L1 signaling (usually DCI) is generally carried in the PDCCH, and the terminal device receives one or more PDCCHs between receiving the L1 signaling to start monitoring the wake-up signal, so the last PDCCH in the one or more PDCCHs is the last PDCCH received by the terminal device before starting to monitor the wake-up signal, and the TCI-state of the CORESET associated with the last PDCCH in the one or more PDCCHs is the TCI-state associated with the wake-up signal.

[0246] Example 3, assuming that the terminal device is triggered to start monitoring the wake-up signal based on L2 signaling, and the terminal device does not receive PDCCH between receiving the L2 signaling to start monitoring the wake-up signal, the TCI-state of the CORESET associated with the PDSCH scheduled by the PDCCH is the TCI-state associated with the wake-up signal.

[0247] Specifically, the L2 signaling is used to trigger the terminal device to start monitoring the wake-up signal, and the L2 signaling is generally carried in the PDSCH, assuming that the PDCCH scheduling the PDSCH is PDCCH#1, and the terminal device does not receive PDCCH between receiving the L2 signaling to start monitoring the wake-up signal, then the PDCCH#1 is generally the last PDCCH received by the terminal device before starting to monitor the wake-up signal, and the TCI-state of the CORESET associated with the PDCCH#1 is the TCI-state associated with the wake-up signal. It can be understood that if the terminal device receives one or more PDCCHs after receiving the PDCCH#1, to the start of monitoring the wake-up signal, the TCI-state of the CORESET associated with the last PDCCH in the one or more PDCCHs is the TCI-state associated with the wake-up signal.

[0248] Example 4, assuming that the terminal device is triggered to start monitoring the wake-up signal based on L2 signaling, and the terminal device receives one or more PDCCHs between receiving the L2 signaling to start monitoring the wake-up signal, then the TCI-state of the CORESET associated with the last PDCCH in the one or more PDCCHs is the TCI-state associated with the wake-up signal.

[0249] Specifically, L2 signaling is used to trigger the terminal device to start monitoring the wake-up signal, and the L2 signaling is generally carried in the PDSCH, assuming that the PDCCH scheduling the PDSCH is PDCCH#1, and the terminal device receives one or more PDCCHs between receiving the L2 signaling (or the terminal device receives PDCCH#1) and starting to monitor the wake-up signal, therefore, the last PDCCH in the one or more PDCCHs is the last PDCCH received by the terminal device before starting to monitor the wake-up signal, and therefore the TCI-state of the CORESET associated with the last PDCCH in the one or more PDCCHs is the TCI-state associated with the wake-up signal.

[0250] Example 5, assuming that the terminal device is triggered to start monitoring the wake-up signal based on RRC signaling, and the terminal device does not receive PDCCH between receiving the RRC signaling and starting to monitor the wake-up signal, the TCI-state of the CORESET associated with the last PDCCH received by the terminal device before receiving the RRC signaling is the TCI-state associated with the wake-up signal.

[0251] Example 6, assuming that the terminal device is triggered to start monitoring the wake-up signal based on RRC signaling, and the terminal device receives one or more PDCCHs between receiving the RRC signaling and starting to monitor the wake-up signal, the TCI-state of the CORESET associated with the last PDCCH in the one or more PDCCHs is the TCI-state associated with the wake-up signal.

[0252] Example 7, if the start of monitoring the wake-up signal is triggered based on a timer (i.e., after the timer expires, the terminal device switches from monitoring PDCCH to monitoring the wake-up signal), the TCI-state of the CORESET associated with the last PDCCH received by the terminal device before the timer expires is the TCI-state associated with the wake-up signal.

[0253] The above examples are simple examples and are not limited thereto. In other words, as long as there is a correlation between the TCI-state of the CORESET associated with the last received PDCCH before the terminal device starts monitoring the wake-up signal and the TCI-state associated with the wake-up signal, such as the TCI-state of the CORESET associated with the last received PDCCH before the terminal device starts monitoring the wake-up signal being the TCI-state associated with the wake-up signal, the scheme is applicable to the embodiments of the present application. In addition, the above examples are mainly illustrated by taking PDCCH as an example, which is not limited thereto. For example, PDCCH can be replaced by PDSCH, and correspondingly, the TCI-state of the CORESET associated with the last received PDCCH can be replaced by the TCI-state of the PDSCH. For another example, PDCCH can be replaced by a reference signal (such as CSI-RS, and SSB, etc.), and correspondingly, the TCI-state of the CORESET associated with the last received PDCCH can be replaced by the TCI-state of the reference signal.

[0254] The above describes a manner in which the terminal device determines the TCI-state associated with the wake-up signal.

[0255] As described above, the terminal device can start monitoring the wake-up signal in a time period (such as the first time period) in response to the indication information in a time period (such as the second time period) and determine to start monitoring the wake-up signal based on the timeout of the timer. The following describes this case in combination with FIG. 8. The parts not described in detail in FIG. 8 can be referred to the previous description.

[0256] Referring to FIG. 8, as an example, FIG. 8 is a schematic diagram of a communication method 800 provided by the embodiments of the present application. The method 800 shown in FIG. 8 can include the following steps.

[0257] S810, monitoring indication information, the indication information indicating to start monitoring the wake-up signal.

[0258] The indication information is the indication information in S410, which is not described herein.

[0259] The following describes two possible cases.

[0260] Case 1: Before the timeout of the timer, the terminal device does not monitor the indication information. In other words, until the timeout of the timer, the terminal device does not monitor the indication information. In this case, the method 800 can include S821.

[0261] S821, after the timeout of the timer, the terminal device monitors the wake-up signal based on the preset TCI-state.

[0262] Specifically, the terminal device monitors the indication information, and if the terminal device does not receive the indication information until the timer expires, the terminal device starts monitoring the wake-up signal based on the preset TCI-state.

[0263] Optionally, the method 800 further includes that the terminal device determines the TCI-state associated with the wake-up signal, that is, the terminal device determines the preset TCI-state. For details, refer to the related description in the method 400, which is not described here.

[0264] In case 2, the terminal device monitors the indication information before the timer expires. In this case, the method 800 can include S822.

[0265] S822, the terminal device monitors the wake-up signal based on the TCI-state associated with the wake-up signal, which is determined based on the indication information.

[0266] Specifically, the terminal device monitors the indication information, and if the terminal device monitors the indication information before the timer expires, the terminal device can determine the TCI-state associated with the wake-up signal based on the indication information, and monitor the wake-up signal based on the TCI-state associated with the wake-up signal. For details of how the terminal device determines the TCI-state associated with the wake-up signal based on the indication information, refer to the related description in the method 400, which is not described here.

[0267] It can be understood that in the embodiments of the present application, “monitoring” can also be replaced by “receiving”, “detecting” or “reading” and the like. For example, “monitoring the indication information” can also be replaced by “receiving the indication information”, “detecting the indication information” or “reading the indication information”, and “monitoring the wake-up signal” can also be replaced by “receiving the wake-up signal”, “detecting the wake-up signal” or “reading the wake-up signal”.

[0268] It can also be understood that in some embodiments of the present application, it is mentioned that the terminal device monitors the wake-up signal based on multiple TCI-states, which does not mean that the terminal device monitors the wake-up signal based on multiple TCI-states at the same time, but means that the terminal device can monitor the wake-up signal based on different TCI-states when monitoring the wake-up signal in a period of time. In other words, the terminal device adopts different TCI-states when monitoring the wake-up signal in different time domain units in a period of time.

[0269] It can also be understood that in the embodiments of the present application, if the terminal device learns that it is woken up, such as learning that it is woken up based on the wake-up signal, the terminal device can immediately access the network device, or the terminal device can also access the network device after a period of time, which is not limited.

[0270] It can also be understood that in some of the above embodiments, the main circuit and the wake-up circuit are mainly exemplarily described, and the application is not limited thereto. For example, the "wake-up circuit" can also be replaced by "first module", or can also be replaced by "wake-up link", or can also be replaced by "in a first state", or can also be replaced by "in a first mode". For example, "the terminal device receives a signal using the wake-up circuit", which can also be replaced by "the terminal device receives a signal through the first module or the terminal device receives a signal on the wake-up link". The "main circuit" can also be replaced by "second module", or can also be replaced by "main link", or can also be replaced by "in a second state", or can also be replaced by "in a second mode". For example, "the terminal device receives a signal using the main circuit", which can also be replaced by "the terminal device receives a signal through the second module or the terminal device receives a signal on the main link".

[0271] It can also be understood that in the embodiments of the application, the interaction between the terminal device and the network device is mainly exemplarily described, and the application is not limited thereto. The terminal device can be replaced by a receiving end device, and the receiving end device can be a terminal device or a network device. The network device can be replaced by a sending end device, and the sending end device can be a terminal device or a network device. For example, the "terminal device" can be replaced by a "first terminal device", and the "network device" can be replaced by a "second terminal device".

[0272] The above describes the method provided by the embodiments of the application in detail in combination with FIGS. 4 to 8. The following describes the apparatus provided by the embodiments of the application in combination with FIGS. 9 to 11. It should be understood that the description of the apparatus embodiments corresponds to the description of the method embodiments, and therefore, the content not described in detail can be referred to the method embodiments described above, which will not be described here for brevity.

[0273] Referring to FIG. 9, as an example, FIG. 9 is a schematic diagram of a communication apparatus 900 provided by an embodiment of the application. The communication apparatus 900 includes a transceiver unit 910. The transceiver unit 910 can be used to implement a corresponding communication function. The transceiver unit 910 can also be referred to as a communication interface or a communication unit. Optionally, the communication apparatus 900 further includes a processing unit 920. The processing unit 920 can be used for processing, such as determining the TCI-state associated with the wake-up signal.

[0274] Optionally, the apparatus 900 can also include a storage unit, which can be used to store instructions and / or data. The processing unit 920 can read the instructions and / or data in the storage unit, so that the apparatus implements the foregoing method embodiments.

[0275] In a first possible design, the apparatus 900 can be a terminal device in the foregoing embodiments, and the apparatus 900 can implement the steps or procedures performed by the terminal device in the foregoing method embodiments. In this case, the transceiver 910 can be configured to perform the operations related to transceiving (e.g., operations of transmitting and / or receiving data or messages) of the terminal device in the foregoing method embodiments, and the processor 920 can be configured to perform the operations related to processing (or operations other than transceiving, e.g., operations other than transmitting and / or receiving data or messages) of the terminal device in the foregoing method embodiments.

[0276] In a possible implementation, the transceiver 910 is configured to receive indication information, where the indication information indicates to start monitoring a wake-up signal; and the transceiver 910 is further configured to monitor the wake-up signal according to a TCI state associated with the wake-up signal, where the TCI state associated with the wake-up signal is determined based on the indication information.

[0277] Optionally, the TCI state associated with the wake-up signal is determined based on the indication information, including that the indication information further indicates the TCI state associated with the wake-up signal.

[0278] Optionally, the TCI state associated with the wake-up signal is determined based on the indication information, including that the indication information is carried in a downlink control information, and the TCI state associated with the wake-up signal is a TCI state of a control resource set of the downlink control information; or the indication information is carried in a physical downlink shared channel, and the TCI state associated with the wake-up signal is a TCI state of the physical downlink shared channel.

[0279] Optionally, the indication information is carried in a downlink control information, and the TCI state associated with the wake-up signal is a TCI state of a control resource set of the downlink control information that satisfies a preset condition.

[0280] Optionally, the TCI state associated with the wake-up signal includes one TCI state.

[0281] Optionally, the TCI state associated with the wake-up signal includes multiple TCI states, the multiple TCI states include a first TCI state and a second TCI state, and the transceiver 910 is further configured to monitor the wake-up signal, including that the transceiver 910 is further configured to monitor the wake-up signal in a first time period, the first time period includes X1 first time domain units and X2 second time domain units, the TCI state associated with the wake-up signal is the first TCI state in the X1 first time domain units, and the TCI state associated with the wake-up signal is the second TCI state in the X2 second time domain units, where X1 and X2 are integers greater than 1 or equal to 1.

[0282] Optionally, the indication information comprises first sub-information and second sub-information, the first sub-information is used for monitoring the wake-up signal in X1 first time domain units, and the first sub-information indicates a first TCI state; the second sub-information is used for monitoring the wake-up signal in X2 second time domain units, and the second sub-information indicates a second TCI state.

[0283] Optionally, the X1 first time domain units and the X2 second time domain units coincide at a first time domain position, and a TCI state associated with the wake-up signal at the first time domain position is determined based on a preset rule.

[0284] Optionally, a starting time of the first time period is a first time, the first time is a time of starting to monitor the wake-up signal in response to the indication information, and an ending time of the first time period is a time of stopping to monitor the wake-up signal after the first time.

[0285] Optionally, the transceiver 910 is further configured to receive the indication information, including: the transceiver 910 is further configured to receive the indication information before the expiration of the timer; and the transceiver 910 is configured to monitor the wake-up signal according to the TCI state associated with the wake-up signal, including: if the indication information is received before the expiration of the timer, the transceiver 910 is configured to monitor the wake-up signal according to the TCI state associated with the wake-up signal; and if the indication information is not received before the expiration of the timer, the transceiver 910 is further configured to monitor the wake-up signal according to a preset TCI state after the expiration of the timer.

[0286] Optionally, the preset TCI state comprises one TCI state; or the preset TCI state comprises a plurality of TCI states, and the plurality of TCI states comprise a first preset TCI state and a second preset TCI state; and optionally, the transceiver 910 is further configured to monitor the wake-up signal, including: monitoring the wake-up signal in a second time period, the second time period comprises X3 third time domain units and X4 fourth time domain units, a TCI state associated with the wake-up signal in the X3 third time domain units is the first preset TCI state, a TCI state associated with the wake-up signal in the X4 fourth time domain units is the second preset TCI state, X3 and X4 are integers greater than 1 or equal to 1.

[0287] Optionally, the preset TCI state comprises a plurality of TCI states, and the plurality of TCI states comprise a first preset TCI state and a second preset TCI state; and the transceiver 910 is further configured to receive configuration information, the configuration information indicating a wake-up signal monitoring configuration, the wake-up signal monitoring configuration comprising a plurality of wake-up signal monitoring configurations, the plurality of wake-up signal monitoring configurations comprising a first wake-up signal monitoring configuration and a second wake-up signal monitoring configuration, the first wake-up signal monitoring configuration being associated with the first preset TCI state, and the second wake-up signal monitoring configuration being associated with the second preset TCI state.

[0288] Optionally, the TCI state associated with the wake-up signal comprises at least one of: a quasi co-location (QCL) type, a reference signal, and a reference signal resource.

[0289] In a second possible design, the apparatus 900 can be a network device in the foregoing embodiments, and the apparatus 900 can implement steps or procedures corresponding to steps or procedures performed by the network device in the foregoing method embodiments. The transceiver unit 910 can be configured to perform operations related to transceiving (e.g., operations of transmitting and / or receiving data or messages) of the network device in the foregoing method embodiments, and the processing unit 920 can be configured to perform operations related to processing of the network device in the foregoing method embodiments, or operations other than transceiving (e.g., operations other than transmitting and / or receiving data or messages).

[0290] In a possible implementation, the processing unit 920 is configured to determine indication information, the indication information indicating to start monitoring a wake-up signal, and a TCI state associated with the wake-up signal is determined based on the indication information; and the transceiver unit 910 is configured to transmit the indication information.

[0291] Optionally, the TCI state associated with the wake-up signal is determined based on the indication information, including that the indication information further indicates the TCI state associated with the wake-up signal.

[0292] Optionally, the TCI state associated with the wake-up signal is determined based on the indication information, including that the indication information is carried in downlink control information, and the TCI state associated with the wake-up signal is a TCI state of a control resource set of the downlink control information; or the indication information is carried in a physical downlink shared channel, and the TCI state associated with the wake-up signal is a TCI state of the physical downlink shared channel.

[0293] Optionally, the indication information is carried in downlink control information, and the TCI state associated with the wake-up signal is a TCI state of a control resource set of the downlink control information that satisfies a preset condition.

[0294] Optionally, the TCI state associated with the wake-up signal comprises one TCI state.

[0295] Optionally, the TCI state associated with the wake-up signal comprises multiple TCI states, the multiple TCI states comprising a first TCI state and a second TCI state, the TCI state associated with the wake-up signal in X1 first time domain units of the first time period is the first TCI state, the TCI state associated with the wake-up signal in X2 second time domain units of the first time period is the second TCI state, and X1 and X2 are integers greater than 1 or equal to 1.

[0296] Optionally, the indication information comprises first sub-information and second sub-information, the first sub-information is used for monitoring the wake-up signal in X1 first time domain units, and the first sub-information indicates the first TCI state; the second sub-information is used for monitoring the wake-up signal in X2 second time domain units, and the second sub-information indicates the second TCI state.

[0297] Optionally, the X1 first time domain units and the X2 second time domain units coincide at a first time domain position, and the TCI state associated with the wake-up signal at the first time domain position is determined based on a preset rule.

[0298] Optionally, a starting moment of the first time period is a first moment, the first moment is a moment of starting to monitor the wake-up signal in response to the indication information, and an ending moment of the first time period is a moment of stopping to monitor the wake-up signal after the first moment.

[0299] Optionally, the TCI state associated with the wake-up signal comprises at least one of the following: a quasi co-location (QCL) type, a reference signal, and a reference signal resource.

[0300] It should be understood that the specific process of each unit performing the corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, will not be repeated here.

[0301] It should also be understood that the apparatus 900 herein is embodied in the form of functional units. The term "unit" herein can refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor, or a group processor, etc.) and a memory for executing one or more software or firmware programs, a combination of logical circuits, and / or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the apparatus 900 can be embodied as the communication apparatus in the above embodiments, and can be used to execute the respective processes and / or steps corresponding to the communication apparatus in the above method embodiments, and for the sake of brevity, will not be repeated here.

[0302] The apparatus 900 of each of the above schemes has the function of implementing the corresponding steps performed by the communication apparatus (such as a terminal device, and such as a network device) in the above methods. The function can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (for example, the transmitting unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor, which respectively performs the transceiving operations and related processing operations in each method embodiment.

[0303] In addition, the transceiver unit 910 can also be a transceiver circuit (for example, can include a receiving circuit and a transmitting circuit), and the processing unit can be a processing circuit.

[0304] It should be noted that the apparatus in FIG. 9 can be a communication device (such as a terminal device, or a network device) in the foregoing embodiments, or can be a chip or a chip system, for example, a system on chip (SoC). The transceiver unit can be an input / output circuit or a communication interface, and the processing unit can be a processor or a microprocessor integrated on the chip or an integrated circuit. In this regard, no limitation is made.

[0305] Referring to FIG. 10, FIG. 10 is a schematic diagram of another communication apparatus 1000 provided by the embodiments of the present application, as an example. The apparatus 1000 includes a processor 1010, and the processor 1010 is coupled with a memory 1020. The memory 1020 is configured to store computer programs or instructions and / or data, and the processor 1010 is configured to execute the computer programs or instructions stored in the memory 1020, or read the data stored in the memory 1020, to perform the methods in the method embodiments.

[0306] Optionally, the processor 1010 is one or more.

[0307] Optionally, the memory 1020 is one or more.

[0308] Optionally, the memory 1020 is integrated with the processor 1010, or is separately arranged.

[0309] Optionally, as shown in FIG. 10, the apparatus 1000 further includes a transceiver 1030, and the transceiver 1030 is configured to receive and / or send signals. For example, the processor 1010 is configured to control the transceiver 1030 to receive and / or send signals.

[0310] As an example, the processor 1010 can have the functions of the processing unit 920 shown in FIG. 9, the memory 1020 can have the functions of a storage unit, and the transceiver 1030 can have the functions of the transceiver unit 910 shown in FIG. 9.

[0311] As an example, the apparatus 1000 is configured to implement the operations performed by a communication apparatus (such as a terminal device, or a network device) in the method embodiments.

[0312] For example, the processor 1010 is configured to execute the computer programs or instructions stored in the memory 1020, to implement the related operations of the communication apparatus in the method embodiments.

[0313] It should be appreciated that a processor as mentioned in this application can be any known or future developed processor, and more particularly, any custom made or commercially available processor series (or any other processor orders) from any manufacturer.

[0314] It should also be appreciated that a memory as mentioned in this application can be any known or future developed memory, and more particularly, a memory unit of any type including, but not limited to, a volatile memory, a non-volatile memory, or a combination thereof. The non-volatile memory can be a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically EPROM (EEPROM), a flash memory, or the like. The volatile memory can be a random access memory (RAM), which can be implemented at any appropriate technology, such as SRAM, DRAM, SDRAM, DDR SDRAM, ESDRAM, SLDRAM, and / or RDRAM. In an embodiment, a RAM can be utilized as external cache memory.

[0315] It should be noted that when the processor is a general processor, a DSP, an ASIC, a FPGA or other programmable logic device, a discrete gate or transistor logic, a discrete hardware component, the memory (storage module) can be integrated in the processor.

[0316] It should also be noted that the memory described herein is intended to include, but not limited to, these and any other suitable type of memory.

[0317] Referring to FIG. 11, as an example, FIG. 11 is a schematic diagram of a chip system 1100 provided by embodiments of the present application. The chip system 1100 (or also referred to as a processing system) includes a logic circuit 1110 and an input / output interface 1120.

[0318] The logic circuit 1110 can be a processing circuit in the chip system 1100. The logic circuit 1110 can be coupled to a storage unit, and invoke instructions in the storage unit, so that the chip system 1100 can implement the methods and functions of embodiments of the present application. The input / output interface 1120 can be an input / output circuit in the chip system 1100, and output information processed by the chip system 1100, or input data or signaling information to be processed by the chip system 1100.

[0319] As an example, the chip system 1100 is configured to implement operations performed by a communication apparatus (e.g., a terminal device, or a network device) in the above method embodiments.

[0320] For example, the logic circuit 1110 is configured to implement processing-related operations performed by a communication apparatus (e.g., a terminal device, or a network device) in the above method embodiments; and the input / output interface 1120 is configured to implement sending and / or receiving-related operations performed by a communication apparatus (e.g., a terminal device, or a network device) in the above method embodiments.

[0321] Embodiments of the present application further provide a computer-readable storage medium having stored thereon a computer program or instructions for implementing a method performed by a communication apparatus (e.g., a terminal device, or a network device) in the above method embodiments. For example, the computer program or instructions, when executed by a communication apparatus, enable the communication apparatus (e.g., a terminal device, or a network device) to perform the above method (e.g., the method 400 or the method 800).

[0322] Embodiments of the present application further provide a computer program product containing instructions, which, when executed by a computer, implement a method performed by a communication apparatus (e.g., a terminal device, or a network device) in the above method embodiments. For example, the computer program or instructions, when executed by a communication apparatus, enable the communication apparatus (e.g., a terminal device, or a network device) to perform the above method (e.g., the method 400 or the method 800).

[0323] Embodiments of the present application further provide a communication system including a terminal device and / or a network device in the above embodiments. For example, the system includes the terminal device and the network device in the embodiment of FIG. 4. For another example, the system includes the terminal device and the network device in the embodiment of FIG. 8.

[0324] The explanations and beneficial effects of the related content in any of the above-provided devices can refer to the corresponding method embodiments provided above, which will not be repeated here.

[0325] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the above-described device embodiments are only schematic, and the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0326] In the above embodiments, all or part of them can be realized by software, hardware, firmware or any combination thereof. When realized by software, all or part of them can be realized in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, the computer instructions produce the processes or functions described in the embodiments of the present application. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices. For example, the computer can be a personal computer, a server or a network device, etc. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another, for example, the computer instructions can be transferred from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be magnetic media (such as floppy disk, hard disk, magnetic tape), optical media (such as DVD), or semiconductor media (such as solid state disk (SSD), etc. For example, the foregoing available media includes but is not limited to: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc. Various media that can store program codes.

[0327] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method, characterized in that, include: Receive instruction information, which indicates that monitoring for wake-up signals should begin; The wake-up signal is monitored according to the Transmission Configuration Indicator (TCI) state associated with the wake-up signal, wherein the TCI state associated with the wake-up signal is determined based on the indication information.

2. The method according to claim 1, characterized in that, The TCI state associated with the wake-up signal is determined based on the indication information, including: The indication information also indicates the TCI state associated with the wake-up signal.

3. The method according to claim 1, characterized in that, The TCI state associated with the wake-up signal is determined based on the indication information, including: The indication information is carried in the downlink control information, and the TCI state associated with the wake-up signal is the TCI state of the control resource set of the downlink control information; or... The indication information is carried on the physical downlink shared channel, and the TCI state associated with the wake-up signal is the TCI state of the physical downlink shared channel.

4. The method according to claim 3, characterized in that, The indication information is carried in the downlink control information, and the TCI state associated with the wake-up signal is the TCI state in the control resource set of the downlink control information that meets the preset conditions.

5. The method according to any one of claims 1 to 4, characterized in that, The TCI state associated with the wake-up signal includes one TCI state.

6. The method according to any one of claims 1 to 4, characterized in that, The TCI state associated with the wake-up signal includes multiple TCI states, including a first TCI state and a second TCI state. The monitoring wake-up signal includes: The wake-up signal is monitored in a first time period, which includes X1 first time domain units and X2 second time domain units. The TCI state associated with the wake-up signal in the X1 first time domain units is the first TCI state, and the TCI state associated with the wake-up signal in the X2 second time domain units is the second TCI state. X1 and X2 are integers greater than or equal to 1.

7. The method according to claim 6, characterized in that, The indication information includes a first sub-information and a second sub-information. The first sub-information is used to monitor the wake-up signal within the X1 first time domain units, and the first sub-information indicates the first TCI state. The second sub-information is used to monitor the wake-up signal within the X2 second time domain units, and the second sub-information indicates the second TCI state.

8. The method according to claim 6 or 7, characterized in that, The X1 first time domain units and the X2 second time domain units overlap at the first time domain position, and the TCI state associated with the wake-up signal at the first time domain position is determined based on a preset rule.

9. The method according to any one of claims 6 to 8, characterized in that, The start time of the first time period is the first moment, which is the moment when monitoring the wake-up signal begins in response to the indication information, and the end time of the first time period is the moment after the first moment when monitoring the wake-up signal stops.

10. The method according to any one of claims 1 to 9, characterized in that, The receiving indication information includes: Receive the indication information before the timer expires; The step of monitoring the wake-up signal based on the TCI state associated with the wake-up signal includes: If the indication information is received before the timer expires, monitor the wake-up signal according to the TCI state associated with the wake-up signal; The method further includes: If the indication information is not received before the timer expires, the wake-up signal is monitored according to the preset TCI status after the timer expires.

11. The method according to claim 10, characterized in that, The preset TCI state includes one TCI state; or, The preset TCI state includes multiple TCI states, including a first preset TCI state and a second preset TCI state. The monitoring wake-up signal includes: The wake-up signal is monitored in a second time period, which includes X3 third time domain units and X4 fourth time domain units. The TCI state associated with the wake-up signal in the X3 third time domain units is the first preset TCI state, and the TCI state associated with the wake-up signal in the X4 fourth time domain units is the second preset TCI state. X3 and X4 are integers greater than or equal to 1.

12. The method according to claim 10 or 11, characterized in that, The preset TCI state includes multiple TCI states, including a first preset TCI state and a second preset TCI state. Before monitoring the wake-up signal, the method further includes: Receive configuration information, the configuration information indicating wake-up signal monitoring configuration, the wake-up signal monitoring configuration includes multiple wake-up signal monitoring configurations, the multiple wake-up signal monitoring configurations include a first wake-up signal monitoring configuration and a second wake-up signal monitoring configuration, the first wake-up signal monitoring configuration is associated with the first preset TCI state, and the second wake-up signal monitoring configuration is associated with the second preset TCI state.

13. The method according to any one of claims 1 to 12, characterized in that, The TCI state associated with the wake-up signal includes at least one of the following: quasi-co-address QCL type, reference signal, and reference signal resource.

14. A communication method, characterized in that, include: Determine indication information, which indicates the start of monitoring a wake-up signal, and the Transmission Configuration Indicator (TCI) status associated with the wake-up signal is determined based on the indication information; Send the instruction information.

15. The method according to claim 14, characterized in that, The TCI state associated with the wake-up signal is determined based on the indication information, including: the indication information further indicates the TCI state associated with the wake-up signal.

16. The method according to claim 14, characterized in that, The TCI state associated with the wake-up signal is determined based on the indication information, including: The indication information is carried in the downlink control information, and the TCI state associated with the wake-up signal is the TCI state of the control resource set of the downlink control information; or... The indication information is carried on the physical downlink shared channel, and the TCI state associated with the wake-up signal is the TCI state of the physical downlink shared channel.

17. The method according to claim 16, characterized in that, The indication information is carried in the downlink control information, and the TCI state associated with the wake-up signal is the TCI state in the control resource set of the downlink control information that meets the preset conditions.

18. The method according to any one of claims 14 to 17, characterized in that, The TCI state associated with the wake-up signal includes one TCI state.

19. The method according to any one of claims 14 to 18, characterized in that, The TCI state associated with the wake-up signal includes multiple TCI states, including a first TCI state and a second TCI state. Within X1 first time domain units of the first time period, the TCI state associated with the wake-up signal is the first TCI state, and within X2 second time domain units of the first time period, the TCI state associated with the wake-up signal is the second TCI state, where X1 and X2 are integers greater than or equal to 1.

20. The method according to claim 19, characterized in that, The indication information includes a first sub-information and a second sub-information. The first sub-information is used to monitor the wake-up signal within the X1 first time domain units, and the first sub-information indicates the first TCI state. The second sub-information is used to monitor the wake-up signal within the X2 second time domain units, and the second sub-information indicates the second TCI state.

21. The method according to claim 19 or 20, characterized in that, The X1 first time domain units and the X2 second time domain units overlap at the first time domain position, and the TCI state associated with the wake-up signal at the first time domain position is determined based on a preset rule.

22. The method according to any one of claims 19 to 21, characterized in that, The start time of the first time period is the first moment, which is the moment when monitoring the wake-up signal begins in response to the indication information, and the end time of the first time period is the moment after the first moment when monitoring the wake-up signal stops.

23. The method according to any one of claims 14 to 22, characterized in that, The TCI state associated with the wake-up signal includes at least one of the following: quasi-co-address QCL type, reference signal, and reference signal resource.

24. A communication device, characterized in that, It includes modules or units for performing the method according to any one of claims 1 to 13; or, it includes modules or units for performing the method according to any one of claims 14 to 23.

25. A communication device, characterized in that, The device includes a processor configured to cause the communication device to perform the method of any one of claims 1 to 13; or, configured to cause the communication device to perform the method of any one of claims 14 to 23.

26. The apparatus according to claim 25, characterized in that, The device also includes a memory and / or a communication interface. The memory, coupled to the processor, is used to store computer programs or instructions; The communication interface is coupled to the processor and is used for inputting and / or outputting information.

27. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed on a communication device, cause the communication device to perform the method as described in any one of claims 1 to 13; or cause the communication device to perform the method as described in any one of claims 14 to 23.

28. A computer program product, characterized in that, The computer program product includes a computer program or instructions that, when executed on a communication device, cause the communication device to perform the method as described in any one of claims 1 to 13; or cause the communication device to perform the method as described in any one of claims 14 to 23.

Images