A communication method and related equipment

Abstract

An embodiment of the present application discloses a communication method and related equipment, wherein the method includes: a terminal device receives a wake-up signal WUS sent by a network device, the WUS is used to indicate paging downlink control information paging DCI is used to indicate system information update, the paging DCI is used to schedule paging messages, or the paging DCI is used to indicate system information update and is used to schedule paging messages; the terminal device receives the paging DCI according to the WUS. Through the method provided by the embodiment of the present application, the terminal device can know in advance the type of paging event indicated by the paging DCI through the WUS. In the case where the paging DCI is used to indicate system information update, the terminal device can sleep after receiving the paging DCI and does not detect the PDSCH, thereby reducing the power consumption of the terminal device.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a communication method and related equipment. Background Art

[0002] Currently, network devices use the paging process to notify terminal devices to listen for paging messages, updated system messages, or both. Typically, a terminal device wakes up on a paging occasion (PO) and listens for the paging downlink control information (DCI) sent by the network device. Waking up means turning on hardware such as the radio frequency and baseband.

[0003] Paging DCI is a type of information that can be used to indicate a paging event. Paging events can include system information update (SI modification) and scheduled paging messages. Paging DCI can be used to indicate system information update, or to schedule paging messages, or to indicate system information update and to schedule paging messages. Currently, after receiving paging DCI, the terminal device will detect PDSCH to receive the paging message. However, in the case where the paging DCI indicates a system update, the terminal device also needs to detect PDSCH. The detection of such unnecessary information will cause waste of power consumption of the terminal device. Summary of the Invention

[0004] The present application provides a communication method and related devices, wherein a terminal device can know in advance the type of paging event indicated by a paging DCI through a WUS. When a paging DCI is used to indicate a system information update, the terminal device goes into sleep mode after receiving the paging DCI and does not detect the PDSCH, thereby reducing the power consumption of the terminal device.

[0005] In a first aspect, the present application provides a communication method, which includes: a terminal device receives a wake-up signal WUS sent by a network device, wherein the WUS is used to indicate paging downlink control information paging DCI is used to indicate system information update, the paging DCI is used to schedule paging messages, or the paging DCI is used to indicate system information update and to schedule paging messages; the terminal device receives the paging DCI according to the WUS.

[0006] In this way, the terminal device can know in advance the type of paging event indicated by the paging DCI. When the paging DCI is used to indicate a system information update, the terminal device can sleep after receiving the paging DCI and not detect the PDSCH, thereby reducing the power consumption of the terminal device.

[0007] With reference to the first aspect, in a possible implementation manner, the method further includes: when the WUS is used to indicate that the paging DCI is used to indicate a system information update, the terminal device sleeps after receiving the paging DCI.

[0008] In combination with the first aspect, in a possible implementation, the method further includes: when the WUS is used to indicate that the paging DCI is used to schedule a paging message, or the paging DCI is used to indicate a system information update and to schedule a paging message, the terminal device receives a paging message according to the paging DCI.

[0009] In combination with the first aspect, in one possible implementation, the method further includes: the terminal device receiving configuration information of the network device, the configuration information being used to indicate a correspondence between a WUS and an indication status, the indication status including: indicating that a paging DCI is used to indicate a system information update, indicating that the paging DCI is used to schedule a paging message, and indicating that the paging DCI is used to indicate a system information update and to schedule a paging message; or, the terminal device pre-stores the correspondence between the WUS and the indication status. In this manner, the terminal device can determine the indication status corresponding to the received WUS through the configuration information or the pre-stored correspondence.

[0010] In the second aspect, the present application provides another communication method, which includes: a terminal device receives configuration information from a network device, and the configuration information is used to instruct the terminal device to receive WUS in a first manner or a second manner; when the configuration information is used to instruct the terminal device to receive WUS in the first manner, the terminal device sleeps at the paging opportunity PO associated with the WUS if it does not receive the WUS; when the configuration information is used to instruct the terminal device to receive WUS in the second manner, the terminal device sleeps at the PO when it receives the WUS in the first state.

[0011] In this way, the configuration information can be used to specify the way in which the terminal device receives the WUS. The terminal device can determine whether to go into sleep mode based on different receiving modes.

[0012] In combination with the second aspect, in a possible implementation manner, the method further includes: when the configuration information is used to instruct the terminal device to receive the WUS in the first manner, the terminal device wakes up at the PO upon receiving the WUS.

[0013] In combination with the second aspect, in a possible implementation, the method further includes: when the configuration information is used to instruct the terminal device to receive WUS in the second manner, the terminal device wakes up at the PO when it receives the WUS in the second state.

[0014] In combination with the second aspect, in a possible implementation manner, the WUS is a pseudo-random sequence, or the WUS is downlink control information DCI.

[0015] In conjunction with the second aspect, in one possible implementation, the WUS is a pseudo-random sequence, and the method further includes: the terminal device performing one or more of a synchronization measurement, a channel state measurement, or a radio resource management measurement based on the WUS. In this manner, the terminal device does not need to additionally detect the SSB signal, thereby saving power consumption of the terminal device.

[0016] On the third aspect, the present application provides another communication method, the method comprising: a network device sends a WUS to a terminal device, the WUS is used to indicate paging downlink control information paging DCI is used to indicate system information update, the paging DCI is used to schedule paging messages, or the paging DCI is used to indicate system information update and is used to schedule paging messages; the network device sends the paging DCI to the terminal device. In this way, the network device can send a WUS to the terminal device, and the WUS indicates the type of paging event. Accordingly, the terminal device can know in advance the type of paging event indicated by the paging DCI through the WUS. In the case where the paging DCI is used to indicate system information update, the terminal device can sleep after receiving the paging DCI and does not detect the PDSCH, thereby reducing the power consumption of the terminal device.

[0017] In conjunction with the third aspect, in one possible implementation, the method further includes: the network device sending configuration information to the terminal device, the configuration information being used to indicate a correspondence between a WUS and an indication status, the indication status including: indicating that a paging DCI is used to indicate a system information update, indicating that the paging DCI is used to schedule a paging message, and indicating that the paging DCI is used to indicate a system information update and to schedule a paging message. In this way, the correspondence between the WUS and the indication status can be indicated.

[0018] In a fourth aspect, the present application provides another communication method, the method comprising: a network device sends configuration information to a terminal device, the configuration information being used to instruct the network device to send a WUS in a first manner or a second manner; when the network device sends the WUS in the first manner, before the PO of the terminal device does not need to be awakened, the network device does not send the WUS to the terminal device; when the network device sends the WUS in the second manner, before the PO of the terminal device does not need to be awakened, the network device sends a WUS in a first state to the terminal device. Through this network device, configuration information can be sent to the terminal, and the configuration information clarifies the manner in which the network device sends the WUS. The network device can send the WUS to the terminal device in different ways.

[0019] In combination with the fourth aspect, in a possible implementation, the method further includes: when the network device sends the WUS in the first manner, before the PO of the terminal device needs to be awakened, the network device sends the WUS to the terminal device.

[0020] In combination with the fourth aspect, in a possible implementation, the method further includes: when the network device sends the WUS in the second manner, before the PO of the terminal device needs to be awakened, the network device sends the WUS in the second state to the terminal device.

[0021] In conjunction with the fourth aspect, in one possible implementation, the WUS is a pseudo-random sequence, or the WUS is downlink control information DCI. In the case where the WUS is a pseudo-random sequence, the terminal device does not need to additionally detect the SSB signal, which can save power consumption of the terminal device.

[0022] In a fifth aspect, the present application provides a terminal device, comprising a first receiving unit and a second receiving unit, wherein: the first receiving unit is configured to receive a WUS sent by a network device, wherein the WUS is configured to indicate that a paging DCI is used to indicate a system information update, the paging DCI is used to schedule a paging message, or the paging DCI is used to indicate a system information update and is used to schedule a paging message; and the second receiving unit is configured to receive the paging DCI according to the WUS. Through such a terminal device, the type of paging event indicated by the paging DCI can be known in advance through the WUS. In the case where the paging DCI is used to indicate a system information update, the terminal device can sleep after receiving the paging DCI, thereby reducing the power consumption of the terminal device.

[0023] In combination with the fifth aspect, in a possible implementation, the terminal device 80 further includes an execution unit, which is specifically configured to: when the WUS is used to indicate that the paging DCI is used to indicate system information update, sleep after receiving the paging DCI.

[0024] In combination with the fifth aspect, in a possible implementation, the terminal device 80 also includes an execution unit, which is specifically used to: when the WUS is used to indicate that the paging DCI is used to schedule paging messages, or the paging DCI is used to indicate system information updates and for scheduling paging messages, receive paging messages according to the paging DCI.

[0025] In conjunction with the fifth aspect, in one possible implementation, the terminal device 80 further includes a third receiving unit, wherein the third receiving unit is specifically configured to: receive configuration information of the network device, wherein the configuration information is used to indicate a correspondence between a WUS and an indication status, wherein the indication status includes: indicating that a paging DCI is used to indicate a system information update, indicating that the paging DCI is used to schedule a paging message, and indicating that the paging DCI is used to indicate a system information update and to schedule a paging message. Alternatively, the terminal device further includes a storage unit, wherein the storage unit is specifically configured to: pre-store the correspondence between the WUS and the indication status.

[0026] In a sixth aspect, the present application provides another terminal device. The terminal device includes a receiving unit and an executing unit, wherein: the receiving unit is configured to receive configuration information from a network device, the configuration information being configured to instruct the terminal device to receive a WUS in a first manner or a second manner; the executing unit is configured to, when the configuration information instructs the terminal device to receive the WUS in the first manner, sleep at a paging opportunity (PO) associated with the WUS if the WUS is not received; and the executing unit is further configured to, when the configuration information instructs the terminal device to receive the WUS in the second manner, sleep at the PO if a WUS in the first state is received.

[0027] In combination with the sixth aspect, in a possible implementation manner, the execution unit is further used to: when the configuration information is used to instruct the terminal device to receive the WUS in the first manner, wake up at the PO upon receiving the WUS.

[0028] In combination with the sixth aspect, in a possible implementation, the execution unit is further used to: when the configuration information is used to instruct the terminal device to receive the WUS in the second manner, the WUS received in the second state is awakened at the PO.

[0029] In combination with the sixth aspect, in a possible implementation manner, the WUS is a pseudo-random sequence, or the WUS is downlink control information DCI.

[0030] In combination with the sixth aspect, in a possible implementation, the WUS is a pseudo-random sequence, and the terminal device further includes a measurement unit, which is used to perform one or more of synchronization measurement, channel state measurement, or wireless resource management measurement according to the WUS.

[0031] In the seventh aspect, the present application provides a network device, which includes a first sending unit and a second sending unit, wherein: the first sending unit is used to send WUS to the terminal device, the WUS is used to indicate that the pagingDCI is used to indicate the system information update, the paging DCI is used to schedule the paging message, or the paging DCI is used to indicate the system information update and to schedule the paging message; the second sending unit is used to send the paging DCI to the terminal device.

[0032] In combination with the seventh aspect, in a possible implementation, the network device also includes a third sending unit, and the third sending unit is used to: send configuration information to the terminal device, the configuration information is used to indicate the correspondence between the WUS and the indication status, and the indication status includes: indicating that the paging DCI is used to indicate system information update, indicating that the paging DCI is used to schedule paging messages, and indicating that the paging DCI is used to indicate system information update and for scheduling paging messages.

[0033] In the eighth aspect, the present application provides another network device, which includes a first sending unit and a second sending unit, wherein: the first sending unit is used to send configuration information to the terminal device, and the configuration information is used to instruct the network device to send WUS in the first manner or the second manner; the second sending unit is used to, when the network device sends WUS in the first manner, not send the WUS to the terminal device before there is no need to wake up the PO of the terminal device; the second sending unit is also used to, when the network device sends WUS in the second manner, send WUS in the first state to the terminal device before there is no need to wake up the PO of the terminal device.

[0034] In combination with the eighth aspect, in a possible implementation, the second sending unit is further used to: when the network device sends the WUS in the first manner, before the PO of the terminal device needs to be awakened, send the WUS to the terminal device.

[0035] In combination with the eighth aspect, in a possible implementation, the second sending unit is further used to: when the network device sends the WUS in the second manner, before the PO of the terminal device needs to be awakened, send the WUS in the second state to the terminal device.

[0036] In combination with the eighth aspect, in a possible implementation manner, the WUS is a pseudo-random sequence, or the WUS is downlink control information DCI.

[0037] In the ninth aspect, the present application provides another terminal device, which includes a processor and a memory; the memory is used to store program code; the processor is used to call the program code from the memory to execute the method described in the first aspect or any possible implementation of the first aspect, or to execute the method described in the second aspect or any possible implementation of the second aspect.

[0038] In the tenth aspect, the present application provides another network device, wherein the terminal device includes a processor and a memory; the memory is used to store program code; the processor is used to call the program code from the memory to execute the method described in the third aspect or any possible implementation of the third aspect, or to execute the method described in the fourth aspect or any possible implementation of the fourth aspect.

[0039] In the eleventh aspect, the present application provides a computer-readable storage medium, which stores program instructions. When the program instructions are executed by a processor, the processor executes the method described in the above-mentioned first aspect or any possible implementation of the first aspect, or executes the method described in the above-mentioned second aspect or any possible implementation of the second aspect.

[0040] In the twelfth aspect, the present application provides a computer-readable storage medium, which stores program instructions. When the program instructions are executed by a processor, the processor executes the method described in the above-mentioned third aspect or any possible implementation of the third aspect, or executes the method described in the above-mentioned fourth aspect or any possible implementation of the fourth aspect.

[0041] In the thirteenth aspect, the present application provides a computer program product, which includes a computer program or instructions. When the computer program or instructions are run on a computer, the computer executes the method described in the first aspect or any possible implementation of the first aspect, or executes the method described in the second aspect or any possible implementation of the second aspect.

[0042] In the fourteenth aspect, the present application provides a computer program product, which includes a computer program or instructions. When the computer program or instructions are run on a computer, the computer executes the method described in the third aspect or any possible implementation of the third aspect, or executes the method described in the fourth aspect or any possible implementation of the fourth aspect.

[0043] In an embodiment of the present application, the terminal device may know in advance the type of paging event indicated by the paging DCI. When the paging DCI indicates a system information update, the terminal device may sleep after receiving the paging DCI and not detect the PDSCH, thereby reducing power consumption of the terminal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0045] Figure 1 is a schematic diagram of a network architecture of a wireless communication system provided in an embodiment of the present application;

[0046] Figure 2 is a schematic diagram of a network architecture of another wireless communication system provided in an embodiment of the present application;

[0047] Figure 3 This is a schematic diagram of sending updated system information provided by an embodiment of the present application;

[0048] Figure 4 This is a schematic diagram of sending a paging message provided by an embodiment of the present application;

[0049] Figure 5 This is a flow chart of a communication method provided by an embodiment of the present application;

[0050] Figure 6 This is a schematic diagram of a process for a terminal device to receive paging DCI according to an embodiment of the present application;

[0051] Figure 7 This is a flow chart of another communication method provided by an embodiment of the present application;

[0052] Figure 8 is a schematic diagram of a terminal device provided in an embodiment of the present application;

[0053] Figure 9 is a schematic diagram of another terminal device provided in an embodiment of the present application;

[0054] Figure 10is a schematic diagram of a network device provided in an embodiment of the present application;

[0055] Figure 11 This is a schematic diagram of another network device provided in an embodiment of the present application;

[0056] Figure 12 is a schematic diagram of another terminal device provided in an embodiment of the present application;

[0057] Figure 13 is a schematic diagram of another terminal device provided in an embodiment of the present application;

[0058] Figure 14 This is a schematic diagram of another network device provided in an embodiment of the present application;

[0059] Figure 15 This is a schematic diagram of another network device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0060] The technical solutions in the embodiments of the present application are described in more detail below.

[0061] The terms used in the following examples of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. As used in the specification and appended claims of the present application, the singular expressions "a," "an," "said," "above," "the," and "this" are intended to include plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used in the present application refers to and encompasses any or all possible combinations of one or more of the listed items.

[0062] It should also be understood that the first, second, third, fourth and various numerical numbers involved in this document are only distinguished for the convenience of description and are not used to limit the scope of the embodiments of the present application.

[0063] The embodiments of the present application can be applied to Figure 1 The network architecture diagram shown in the figure is as follows: Figure 1 The network architecture shown is the network architecture of a wireless communication system, which generally includes terminal devices and network devices. The number and form of each device do not constitute a limitation on the embodiments of the present application. Among them, the network device can be a base station (BS), and the base station can provide communication services to multiple terminal devices, and multiple base stations can also provide communication services to the same terminal device. For example, see Figure 2 , Figure 2A schematic diagram of another network architecture provided in an embodiment of the present application. A communication system 100 includes a network device 110 and multiple terminal devices, namely, terminal device 101, terminal device 102, terminal device 103, terminal device 104, terminal device 105, and terminal device 106. Network device 110 provides communication services to these terminal devices.

[0064] It should be noted that the wireless communication systems mentioned in the embodiments of the present application include but are not limited to: narrowband Internet of Things (NB-IoT) system, global system for mobile communications (GSM), enhanced data rate for GSM evolution (EDGE), wideband code division multiple access (WCDMA), code division multiple access 2000 (CDMA2000), time division-synchronization code division multiple access (TD-SCDMA), long term evolution (LTE), fifth-generation (5G) system and future mobile communication system.

[0065] The network devices involved in the embodiments of the present application include base stations (BS), which can be a device deployed in a wireless access network that can communicate wirelessly with a terminal. Among them, the base station may have various forms, such as a macro base station, a micro base station, a relay station, and an access point. Exemplarily, the base station involved in the embodiments of the present application may be a base station in 5G or a base station in LTE, wherein the base station in 5G can also be called a transmission reception point (TRP) or gNB. In the embodiments of the present application, the device for realizing the function of the network device may be a network device; it may also be a device that can support the network device to realize the function, such as a chip system, which can be installed in the network device.

[0066] The terminal device involved in the embodiments of the present application can also be referred to as a terminal, which can be a device with wireless transceiver function, which can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.). The terminal device can be a user equipment (UE), wherein the UE includes a handheld device, a vehicle-mounted device, a wearable device or a computing device with wireless communication function. Exemplarily, the UE can be a mobile phone, a tablet computer or a computer with wireless transceiver function. The terminal device can also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. In the embodiments of the present application, the device for realizing the function of the terminal can be a terminal; it can also be a device that can support the terminal to realize the function, such as a chip system, which can be installed in the terminal. In the embodiment of the present application, the chip system can be composed of chips, or can include chips and other discrete devices.

[0067] The technical solution provided in the embodiment of the present application can be applied to wireless communication between communication devices. Wireless communication between communication devices may include: wireless communication between network devices and terminals, wireless communication between network devices and network devices, and wireless communication between terminals and terminals. In the embodiment of the present application, the term "wireless communication" may also be referred to as "communication", and the term "communication" may also be described as "data transmission", "information transmission" or "transmission". This technical solution can be used to perform wireless communication between a scheduling entity and a subordinate entity. Those skilled in the art may use the technical solution provided in the embodiment of the present application for wireless communication between other scheduling entities and subordinate entities, such as wireless communication between a macro base station and a micro base station, such as wireless communication between a first terminal and a second terminal.

[0068] The following introduces some concepts involved in the embodiments of this application.

[0069] Paging downlink control information (paging DCI) is information that can be used to indicate a paging event. Specifically, a paging event can include a system information modification (SI modification) and a scheduled paging message. Paging DCI can be used to indicate a system information update, a scheduled paging message, or both. The type of paging event indicated by the Paging DCI can be indicated by the Short Message Indicator field. See Table 1, which illustrates the meaning of the Short Message Indicator field.

[0070] Table 1

[0071]

[0072] The short message field in the paging DCI may indicate information related to the system information update. See Table 2, which illustrates the meaning of the short message field.

[0073] Table 2

[0074]

[0075] When the paging DCI indicates a system information update, the network device will send the updated system information at the start of the next system information modification period, where the system information modification period is configured by the network device. After the terminal device receives the paging DCI (indicating a system information update), it will receive the updated system information at the start of the next system information modification period. Figure 3 , is a schematic diagram of sending updated system information provided by an embodiment of the present application, wherein n is a positive integer.

[0076] When paging DCI is used to schedule paging messages, the physical downlink control channel (PDCCH) and the physical downlink share channel (PDSCH) can be scheduled in the same subframe or across subframes. The network device can dynamically instruct the terminal device how to receive paging messages through the indication field in the paging DCI. Figure 4, is a schematic diagram of sending a paging message provided by an embodiment of the present application, wherein n is a positive integer and k0 is a positive integer.

[0077] Currently, after receiving a paging DCI, a terminal device will detect the PDSCH to receive a paging message. However, if the paging DCI indicates a system update, the terminal device also needs to detect the PDSCH. This unnecessary detection of information will waste power consumption of the terminal device.

[0078] A paging occasion (PO) is a predefined time slot that wakes up a terminal device to listen to the PDCCH. Since most of the time, there's no data transmission between the network and the terminal, a discontinuous reception (DRX) mechanism is introduced to reduce terminal power consumption. The terminal can listen for paging messages during predefined paging occasions and sleep at other times. Sleeping means shutting down hardware components like the radio frequency and baseband.

[0079] A wake-up signal (WUS) is a signal used for indication. Before the paging opportunity, the network device can send a WUS to the terminal device. In the prior art, when the network device needs to send a paging message or updated system information to the terminal device, it can send a WUS to the terminal device before the PO. The WUS is used to instruct the terminal device to wake up at the PO associated with the WUS. When the network device does not need to send a paging message or updated system information to the terminal device, the WUS may not be sent. That is to say, if the terminal device detects a WUS, it wakes up at the PO associated with the WUS and detects the PDCCH; if the terminal device does not detect a WUS, it goes to sleep at the PO. Among them, the meaning of the terminal device staying awake is that the terminal device always turns on hardware units such as radio frequency and baseband.

[0080] Based on the network architecture, terminal device and network device described above, a communication method provided by an embodiment of the present application is introduced below. Figure 5 , Figure 5 1 is a flow chart of a communication method provided in an embodiment of the present application. The method includes the following steps.

[0081] S501: The network device sends a WUS to the terminal device.

[0082] Specifically, the network device sends a WUS before the paging occasion of the terminal device. The WUS is associated with the paging occasion. Optionally, the paging occasion associated with the WUS may be one or more.

[0083] Specifically, the WUS can be used to indicate: paging downlink control information paging DCI is used to indicate system information update, the paging DCI is used to schedule paging messages, or the paging DCI is used to indicate system information update and for scheduling paging messages. In one possible implementation, WUS can be preset with multiple states. For example, WUS can have three states: the WUS in the third state is used to indicate that paging DCI is used to indicate system information update, the WUS in the fourth state is used to indicate that paging DCI is used to schedule paging messages, and the WUS in the fifth state is used to indicate that paging DCI is used to indicate system information update and for scheduling paging messages. In another example, WUS can have two states: the WUS in the sixth state is used to indicate that paging DCI is used to indicate system information update, the WUS in the seventh state is used to indicate that paging DCI is used to schedule paging messages, or paging DCI is used to indicate system information update and for scheduling paging messages. The network device can send WUS in different states to the terminal device according to communication requirements.

[0084] In some embodiments, before the network device sends the WUS to the terminal device, the network device sends configuration information to the terminal device. Specifically, the configuration information is used to indicate the correspondence between the WUS and the indication state, and the indication state includes: indicating that the paging DCI is used to indicate the system information update (referred to as the first indication state for short), indicating that the paging DCI is used to schedule paging messages (referred to as the second indication state for short), and indicating that the paging DCI is used to indicate the system information update and for scheduling paging messages (referred to as the third indication state for short). In combination with the above-mentioned exemplary multiple states of WUS, the correspondence can be that the WUS in the third state corresponds to the first indication state, the WUS in the fourth state corresponds to the second indication state, and the WUS in the fifth state corresponds to the third indication state. Alternatively, the correspondence can be that the WUS in the sixth state corresponds to the first indication state, and the WUS in the seventh state corresponds to the second indication state and the third indication state.

[0085] In other embodiments, the terminal device may pre-store a correspondence between the WUS and the indication status. Optionally, the correspondence between the WUS and the indication status may be specified by a protocol.

[0086] S502: The terminal device receives the WUS sent by the network device.

[0087] After receiving the WUS, the terminal device can determine the indication state corresponding to the received WUS based on the correspondence between the WUS and the indication state. In response to different indication states, after receiving the paging DCI, the terminal can perform different operations, which will be further explained later and will not be elaborated here.

[0088] S503. The network device sends the paging DCI to the terminal device.

[0089] Specifically, the network device sends a pagingDCI to the terminal device during the paging occasion associated with the WUS.

[0090] In one embodiment, because the WUS indicates the function of the paging DCI in the associated paging occasion, the paging DCI may not include the short message indicator field, or the indicator field may be reinterpreted as a new function. If the paging DCI does not include the short message indicator field, the bit length of the paging DCI can be reduced. Given the same transmission resources, the transmission bit rate can be lowered, thereby improving transmission performance. If the indicator field is reinterpreted as a new function, the bit utilization efficiency of the paging DCI is improved.

[0091] S504. The terminal device receives the paging DCI according to the WUS.

[0092] After receiving the WUS, the terminal device can wake up at the paging opportunity associated with the WUS to receive the paging DCI. The terminal device wakes up by turning on the radio frequency, baseband and other hardware units. Specifically, in response to the WUS in different states, after receiving the paging DCI, the terminal device can perform different operations. For example, see Figure 6 , Figure 6 This is a schematic diagram of a process for a terminal device to receive paging DCI according to an embodiment of the present application.

[0093] When the WUS is used to indicate that the paging DCI is used to indicate the system information update, the terminal device goes to sleep after receiving the paging DCI. The meaning of the terminal device going to sleep is that the terminal device turns off the radio frequency, baseband and other hardware units. Since when the paging DCI indicates the system information update, the network device will send the updated system information at the start time of the next preset system information modification cycle, and the terminal can determine through the WUS that the paging DCI is used to indicate the system information update, the terminal device can go to sleep after receiving the paging DCI without continuing to monitor the PDSCH. Optionally, the terminal device can receive the updated system information at the start time of the next system information modification cycle.

[0094] When the WUS is used to indicate that the paging DCI is used to schedule a paging message, or the paging DCI is used to indicate a system information update and is used to schedule a paging message, the terminal device receives a paging message according to the paging DCI. Optionally, the terminal device may continue to stay awake after receiving the paging DCI to receive the paging message. The terminal device may parse the paging DCI and receive the paging message in the PDSCH scheduled by the paging DCI. After the terminal device receives the paging message, the terminal device may sleep. It should be noted that, when the paging DCI is also used to indicate a system information update, the terminal device may receive the updated system information at the start of the next system information modification cycle.

[0095] In the above manner, the terminal device can know in advance the type of paging event indicated by the paging DCI through WUS. When the paging DCI is used to indicate system information update, the terminal device can sleep after receiving the paging DCI and does not detect the PDSCH, thereby reducing the power consumption of the terminal device.

[0096] See also Figure 7 , Figure 7 This is a flow chart of another communication method provided by an embodiment of the present application. The method includes the following steps.

[0097] S701. The network device sends configuration information to the terminal device.

[0098] Specifically, the configuration information is used to instruct the network device to send the WUS in the first mode or the second mode. It can also be understood that the configuration information is used to instruct the terminal device to receive the WUS in the first mode or the second mode. The following describes these two sending modes in detail.

[0099] When the network device sends the WUS in the first manner, the network device does not send the WUS to the terminal device before the PO of the terminal device does not need to be awakened. Before the PO of the terminal device needs to be awakened, the network device sends the WUS to the terminal device. That is to say, when the network device sends the WUS in the first manner, the WUS is used to instruct the terminal device to wake up at the PO associated with the WUS. The first manner can also be understood as the network device sending the WUS by discontinuous transmission (DTX).

[0100] When the network device adopts the second method to send WUS, before the PO of the terminal device does not need to be awakened, the network device sends the WUS in the first state to the terminal device. Before the PO of the terminal device needs to be awakened, the network device sends the WUS in the second state to the terminal device. That is to say, when the network device adopts the second method to send WUS, the WUS in the first state is used to instruct the terminal device to sleep at the PO associated with the WUS in the first state. The WUS in the second state is used to instruct the terminal device to wake up at the PO associated with the WUS in the second state. The second method can also be understood as the network device sending WUS by continuous sending.

[0101] S702: The terminal device receives configuration information from the network device.

[0102] After receiving the configuration information from the network device, the terminal device can detect the WUS according to a preset detection method. For example, the terminal device can detect the WUS according to a preset period. The terminal device may also have other detection methods, which are not detailed here. Specifically, the terminal device can determine different wake-up methods based on different configuration information, which are described in detail below.

[0103] When the configuration information is used to instruct the terminal device to receive the WUS in the first manner, if the terminal device does not receive the WUS, it will sleep at the PO associated with the WUS. If the terminal device receives the WUS, it will wake up at the PO.

[0104] When the configuration information is used to instruct the terminal device to receive the WUS in the second manner, the terminal device sleeps at the PO upon receiving the WUS in the first state, and wakes up at the PO upon receiving the WUS in the second state.

[0105] In some embodiments, since the network device continues to send WUS when the terminal device adopts the second method to receive WUS, if the terminal device does not detect WUS according to the preset detection method, it indicates that the WUS may be missed. In order to avoid the problem of missed detection of WUS, in one possible implementation method, when the terminal device does not detect WUS, the terminal device can be awakened at PO. In another possible implementation method, when the terminal device does not detect WUS, it can be awakened at PO according to preset rules, or sleep at PO. Optionally, the preset rules can be configured by indication information sent by the network device. Alternatively, the terminal device can pre-store preset rules, which are specified by the protocol.

[0106] In some embodiments, the WUS sent by the network device may be a pseudo-random sequence. Alternatively, the WUS sent by the network device may be downlink control information (DCI).

[0107] In the prior art, in order to reduce the cost of terminal equipment, some terminal equipment (for example, mechanical type communication (MTC) terminals) will use low-cost clock crystal oscillators. The performance of this type of clock crystal oscillator will be poor. If the terminal is asleep for a long time, the time and frequency of the terminal device and the network device will be out of sync. In order to solve this problem, in the prior art, when waking up the terminal device to receive a paging message, the terminal device generally needs to perform time and frequency synchronization first, that is, detect the synchronization broadcast block (SS / PBCH block, SSB) signal, and then receive system information.

[0108] In an embodiment of the present application, if the WUS is a pseudo-random sequence, the terminal device can also perform one or more of synchronization measurement, channel state measurement or wireless resource management measurement according to the WUS. This is because the terminal can use a pseudo-random sequence to perform measurements. For example, the terminal device can perform synchronization measurement according to the WUS, that is, the terminal device performs time-frequency synchronization through the WUS. For another example, the terminal device can also perform channel state-related measurements according to the WUS, which can be used for beam management maintenance, channel phase tracking, etc. of the terminal device. For another example, the terminal device can also perform wireless resource management measurements according to the WUS, which can be used for cell selection, cell reselection, etc. of the terminal device. Optionally, the network device can configure the terminal device to perform measurements through the WUS within several PO cycles, during which the terminal device does not need to detect the SSB signal. In this way, the terminal device can perform measurements according to the WUS without additional detection of the SSB signal, which can save power consumption of the terminal device.

[0109] It should be noted that if the first method is used to send WUS, when the channel quality is poor, the terminal may not be able to reliably determine whether the current network device has sent WUS, resulting in unreliable results of the terminal device's measurement based on the WUS. If the network device sends a WUS signal, but the terminal device does not detect the WUS, the terminal device cannot use the measurement result based on this WUS signal, wasting the power consumption of the terminal device's measurement. If the network device does not send a WUS signal, and the terminal device falsely detects the WUS signal and performs measurement based on this WUS signal, it will affect the measurement result of the terminal device and affect the relevant processing of the terminal device. For the network device, the network device only sends WUS when it needs to wake up the terminal, which is beneficial to saving the power consumption of the network device. If the second method is used to send WUS, the network device will display the sending of the WUS signal at all predefined moments, then the result of the terminal device's measurement based on the WUS is reliable, regardless of whether the terminal device detects the WUS signal, it can be measured through the WUS, which is beneficial to saving the power consumption of the terminal device. For the network device, the network device needs to send WUS continuously, which is not conducive to saving the power consumption of the network device.

[0110] Therefore, in one possible implementation, taking into account both energy conservation of terminal devices and network devices, the network device may select a WUS transmission method based on the network load. In one possible implementation, when the network load is relatively high (i.e., the network device is connected to a large number of terminal devices), the network device may transmit the WUS using the second method. In this case, energy consumption of the terminal device can be reduced. When the network load is relatively low (i.e., the network device is connected to a small number of terminal devices), the network device may transmit the WUS using the first method. In this case, energy consumption of the network device can be reduced.

[0111] In another possible implementation, when the channel quality is good, the network device may send the WUS in the first manner; and when the channel quality is poor, the network device may send the WUS in the second manner.

[0112] In some embodiments, when the network device sends the WUS in the first manner, the WUS sent by the network device may include the above Figure 5 The corresponding embodiments describe the WUS in the third state, the WUS in the fourth state, and the WUS in the fifth state; or, may include the above Figure 5 The corresponding embodiments introduce the WUS in the sixth and seventh states.

[0113] In some embodiments, when the network device sends WUS in the second manner, the WUS in the second state may include the above Figure 5The corresponding embodiments describe the WUS of the third state, the WUS of the fourth state, and the WUS of the fifth state; or the WUS of the second state may include the above Figure 5 The WUS in the sixth and seventh states introduced in the corresponding embodiments. For example, in this feasible embodiment, the WUS in the third state is used to indicate that the terminal device needs to wake up, and indicates that the paging DCI is used to indicate the system information update, the WUS in the fourth state is used to indicate that the terminal device needs to wake up, and indicates that the paging DCI is used to schedule the paging message, and the WUS in the fifth state is used to indicate that the terminal device needs to wake up, and indicates that the paging DCI is used to indicate the system information update and to schedule the paging message. In another example, the WUS in the sixth state is used to indicate that the terminal device needs to wake up, and indicates that the paging DCI is used to indicate the system information update, the WUS in the seventh state is used to indicate that the terminal device needs to wake up, and indicates that the paging DCI is used to schedule the paging message, or the paging DCI is used to indicate the system information update and to schedule the paging message. The WUS in the first state is used to indicate that the terminal device does not need to wake up.

[0114] In some embodiments, the WUS described in the above content may be applicable to the radio resource control (RRC) idle state or inactive state, and may also be applicable to the RRC connected state. Optionally, if it is a WUS in the RRC idle state or inactive state, the network device may broadcast configuration information to the terminal device through SIB1 or other system information. If it is a WUS in the RRC linked state, the network device may broadcast configuration information to the terminal device through system information, or may send configuration information to the terminal device through UE-specific signaling, such as RRC signaling, MAC CE, DCI, etc.

[0115] Optionally, if the network device broadcasts configuration information via system information, the network device may modify the configuration information by updating or modifying the system information. If the network device sends configuration information to the terminal device via UE-specific signaling, the network device may modify the configuration information via signaling.

[0116] See also Figure 8 , Figure 8 Schematic diagram of a terminal device provided in an embodiment of the present application. The terminal device 80 includes a first receiving unit 801 and a second receiving unit 802. Specifically:

[0117] The first receiving unit 801 can be used to receive a WUS sent by a network device. The WUS is used to indicate that the paging DCI is used to indicate system information update, the paging DCI is used to schedule a paging message, or the paging DCI is used to indicate system information update and to schedule a paging message. Specifically, the operations performed by the first receiving unit 801 can refer to the above Figure 5 The description of step S502 in the method shown.

[0118] The second receiving unit 802 may be configured to receive the paging DCI according to the WUS. Specifically, the operations performed by the second receiving unit 802 may refer to the above Figure 5 The description of step S504 in the method shown.

[0119] In some embodiments, the terminal device 80 further includes an execution unit, and the execution unit is specifically configured to: when the WUS is used to indicate that the paging DCI is used to indicate system information update, sleep after receiving the paging DCI.

[0120] In some embodiments, the terminal device 80 further includes an execution unit, which is specifically used to: receive a paging message according to the paging DCI when the WUS is used to indicate that the paging DCI is used to schedule a paging message, or the paging DCI is used to indicate a system information update and to schedule a paging message.

[0121] In some embodiments, the terminal device 80 further includes a third receiving unit, the third receiving unit being specifically configured to: receive configuration information of the network device, the configuration information being used to indicate a correspondence between a WUS and an indication status, the indication status including: indicating that a paging DCI is used to indicate a system information update, indicating that the paging DCI is used to schedule a paging message, and indicating that the paging DCI is used to indicate a system information update and to schedule a paging message. Alternatively, the terminal device further includes a storage unit, the storage unit being specifically configured to: pre-store the correspondence between the WUS and the indication status.

[0122] It should be noted that Figure 8 The operations performed by each unit of the terminal device 80 shown can be referred to Figure 5The description of the embodiments shown will not be repeated here. Each of the above units can be implemented in hardware, software, or a combination of hardware and software. In one embodiment, the functions of the first receiving unit 801, the second receiving unit 802, the execution unit, and the third receiving unit in the above content can be implemented by one or more processors in the terminal device 80. The function of the storage unit in the above content can be implemented by one or more memories in the terminal device 80.

[0123] pass Figure 8 The terminal device shown can know in advance the type of paging event indicated by the paging DCI through WUS. When the paging DCI is used to indicate system information update, the terminal device can sleep after receiving the paging DCI and not detect the PDSCH, thereby reducing the power consumption of the terminal device.

[0124] See also Figure 9 , Figure 9 Schematic diagram of another terminal device provided in an embodiment of the present application. The terminal device 90 includes a receiving unit 901 and an execution unit 902. Specifically:

[0125] The receiving unit 901 can be used to receive configuration information from the network device. The configuration information is used to instruct the terminal device to receive WUS in the first or second manner. Specifically, the operation performed by the receiving unit 901 can refer to the above Figure 7 The description of step S702 in the method shown.

[0126] The execution unit 902 may be configured to, when the configuration information is used to instruct the terminal device to receive the WUS in the first manner, sleep during the paging occasion PO associated with the WUS if the WUS is not received.

[0127] The execution unit 902 may also be configured to, when the configuration information is used to instruct the terminal device to receive WUS in the second manner, sleep in the PO when the WUS in the first state is received. Specifically, the operations performed by the execution unit 902 may refer to the above Figure 7 The description of step S702 in the method shown.

[0128] In some embodiments, the execution unit may further be configured to: when the configuration information is used to instruct the terminal device to receive the WUS in the first manner, wake up at the PO upon receipt of the WUS.

[0129] In some embodiments, the execution unit may further be configured to: when the configuration information is used to instruct the terminal device to receive the WUS in the second manner, wake up the terminal device at the PO upon receiving the WUS in the second state.

[0130] In some embodiments, the WUS is a pseudo-random sequence, or the WUS is downlink control information DCI.

[0131] In some embodiments, the WUS is a pseudo-random sequence, and the terminal device 90 further includes a measurement unit, which is specifically used to perform one or more of synchronization measurement, channel state measurement, or wireless resource management measurement according to the WUS.

[0132] It should be noted that Figure 9 The operations performed by each unit of the terminal device shown can be referred to Figure 7 The description of the embodiment shown is omitted here. Each of the above units can be implemented in hardware, software, or a combination of hardware and software. In one embodiment, the functions of the receiving unit 901, the execution unit 902, and the measurement unit in the above content can be implemented by one or more processors in the terminal device 90.

[0133] pass Figure 9 The terminal device shown can clearly specify the method for receiving WUS through the configuration information. The terminal device can determine whether to sleep based on different reception methods. If the WUS is a pseudo-random sequence, the terminal device can also perform synchronization measurement, channel state measurement, or radio resource management measurement based on the WUS, without the need for additional detection of the SSB signal, thereby saving power consumption of the terminal device.

[0134] See also Figure 10 , Figure 10 1 is a schematic diagram of a network device provided in an embodiment of the present application. The network device 100 includes a first sending unit 1001 and a second sending unit 1002. Specifically:

[0135] The first sending unit 1001 can be used to send a WUS to the terminal device. The WUS is used to indicate that the paging DCI is used to indicate the system information update, the paging DCI is used to schedule the paging message, or the paging DCI is used to indicate the system information update and to schedule the paging message. Specifically, the operation performed by the first sending unit 1001 can refer to the above Figure 5 The description of step S501 in the method shown.

[0136] The second sending unit 1002 may be configured to send the paging DCI to the terminal device. Specifically, the operations performed by the second sending unit 1002 may refer to the above Figure 5 The description of step S503 in the method shown.

[0137] In some embodiments, the network device 100 may further include a third sending unit, which may be used to: send configuration information to the terminal device, the configuration information being used to indicate the correspondence between the WUS and the indication status, the indication status including: indicating that the paging DCI is used to indicate system information update, indicating that the paging DCI is used to schedule paging messages, and indicating that the paging DCI is used to indicate system information update and for scheduling paging messages.

[0138] It should be noted that Figure 10 The operations performed by each unit of the network device shown can be referred to Figure 5 The description of the embodiment shown is omitted here. Each of the above units can be implemented in hardware, software, or a combination of hardware and software. In one embodiment, the functions of the first sending unit 1001, the second sending unit 1002, and the third sending unit in the above content can be implemented by one or more processors in the terminal device 100.

[0139] pass Figure 10 The network device shown can send a WUS to the terminal device, where the WUS indicates the type of paging event. Accordingly, the terminal device can know in advance the type of paging event indicated by the paging DCI through the WUS. When the paging DCI is used to indicate a system information update, the terminal device can sleep after receiving the paging DCI and not detect the PDSCH, thereby reducing the power consumption of the terminal device.

[0140] See also Figure 11 , Figure 11 1 is a schematic diagram of another network device provided in an embodiment of the present application. The network device 110 includes a first sending unit 1101 and a second sending unit 1102. Specifically:

[0141] The first sending unit 1101 can be used to send configuration information to the terminal device. The configuration information is used to instruct the network device to send WUS in the first way or the second way. Specifically, the operation performed by the first sending unit 1001 can refer to the above Figure 7 The description of step S701 in the method shown.

[0142] The second sending unit 1102 may be configured to, when the network device sends the WUS in the first manner, not send the WUS to the terminal device before there is no need to wake up the PO of the terminal device.

[0143] The second sending unit 1102 may also be configured to send a WUS in the first state to the terminal device before waking up the PO of the terminal device when the network device sends the WUS in the second manner. Figure 7 The description of step S701 in the method shown.

[0144] In some embodiments, the second sending unit 1102 may also be configured to: when the network device sends the WUS in the first manner, send the WUS to the terminal device before the PO of the terminal device needs to be woken up.

[0145] In some embodiments, the second sending unit 1102 may also be configured to: when the network device sends the WUS in the second manner, before the PO of the terminal device needs to be awakened, the network device sends the WUS in the second state to the terminal device.

[0146] In some embodiments, the WUS is a pseudo-random sequence, or the WUS is downlink control information DCI.

[0147] It should be noted that Figure 11 The operations performed by each unit of the network device 110 shown can be referred to Figure 7 The description of the embodiment shown is omitted here. The above-mentioned units can be implemented in hardware, software, or a combination of hardware and software. In one embodiment, the functions of the first sending unit 1101 and the second sending unit 1102 in the above content can be implemented by one or more processors in the network device 110.

[0148] pass Figure 11 The network device shown can send configuration information to the terminal, which specifies how the network device sends the WUS. The network device can send the WUS to the terminal device in different ways. If the WUS is a pseudo-random sequence, the terminal device can also perform synchronization measurement, channel state measurement, or radio resource management measurement based on the WUS, without the need for additional SSB signal detection, which can save power consumption of the terminal device.

[0149] See also Figure 12 , Figure 12 1 is a schematic diagram of another terminal device provided in an embodiment of the present application. The terminal device 120 may include: one or more processors 1201; one or more input devices 1202; one or more output devices 1203; and memory 1204. The processors 1201, input devices 1202, output devices 1203, and memory 1204 are connected via a bus 1205. Memory 1204 is used to store programs.

[0150] The processor 1201 may be a central processing unit (CPU), a general-purpose processor, a coprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The processor 1201 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0151] The input device 1202 may include an antenna, a communication interface, etc., and the output device 1203 may include an antenna, a communication interface, etc. Optionally, the input device 1202 may be a receiver, and the output device 1203 may be a transmitter. The input device 1202 and the output device 1203 may together form a transceiver.

[0152] The memory 1204 may include a read-only memory and a random access memory, and provides programs and data to the processor 1201. A portion of the memory 1204 may also include a non-volatile random access memory. For example, the memory 1204 may also store information about the device type.

[0153] The processor 1201 is configured to execute the program stored in the memory 1204 to perform the following operations:

[0154] Receive a WUS sent by a network device. The WUS is used to indicate paging downlink control information paging DCI is used to indicate system information update, the paging DCI is used to schedule a paging message, or the paging DCI is used to indicate system information update and to schedule a paging message. Optionally, the processor 1201 can receive the WUS through an input device 1202, which can be a receiver in a transceiver. Specifically, the execution method of this operation can refer to the above Figure 5 The description of step S502 in the method shown.

[0155] Receive the paging DCI according to the WUS. Optionally, the processor 1201 may receive the paging DCI via an input device 1202, which may be a receiver in a transceiver. Specifically, the execution method of the operation may refer to the above Figure 5 The description of step S504 in the method shown.

[0156] Figure 12 The implementation of each operation in can also refer to Figure 5 The corresponding description of the method embodiment shown.

[0157] pass Figure 12 The terminal device shown can know in advance the type of paging event indicated by the paging DCI through WUS. When the paging DCI is used to indicate system information update, the terminal device can sleep after receiving the paging DCI and not detect the PDSCH, thereby reducing the power consumption of the terminal device.

[0158] See also Figure 13 , Figure 13 130 is a schematic diagram of another terminal device provided in an embodiment of the present application. The terminal device 130 may include: one or more processors 1301; one or more input devices 1302; one or more output devices 1303; and memory 1304. The processors 1301, input devices 1302, output devices 1303, and memory 1304 are connected via a bus 1305. Memory 1304 is used to store programs.

[0159] The processor 1301 may be a central processing unit (CPU), a general-purpose processor, a coprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The processor 1301 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0160] The input device 1302 may include an antenna, a communication interface, etc., and the output device 1303 may include an antenna, a communication interface, etc. Optionally, the input device 1302 may be a receiver, and the output device 1303 may be a transmitter. The input device 1302 and the output device 1303 may together constitute a transceiver.

[0161] The memory 1304 may include a read-only memory and a random access memory, and provides programs and data to the processor 1301. A portion of the memory 1304 may also include a non-volatile random access memory. For example, the memory 1304 may also store information about the device type.

[0162] The processor 1301 is configured to execute the program stored in the memory 1304 to perform the following operations:

[0163] Receive configuration information from the network device, where the configuration information is used to instruct the terminal device to receive the WUS in the first manner or the second manner. Optionally, the processor 1301 may receive the configuration information via the input device 1302, which may be a receiver in a transceiver.

[0164] When the configuration information is used to instruct the terminal device to receive the WUS in the first manner, if the WUS is not received, the terminal device goes into sleep mode during the paging occasion PO associated with the WUS.

[0165] When the configuration information is used to instruct the terminal device to receive WUS in the second mode, the WUS received in the first state goes to sleep in the PO. Figure 7 The description of step S702 in the method shown.

[0166] Figure 13 The implementation of each operation in can also refer to Figure 7 The corresponding description of the method embodiment shown.

[0167] pass Figure 13 The terminal device shown can clearly receive the WUS through the configuration information. If the WUS is a pseudo-random sequence, the terminal device can also perform synchronization measurement, channel state measurement, or radio resource management measurement based on the WUS, without the need for additional SSB signal detection, thereby saving power consumption of the terminal device.

[0168] See also Figure 14 , Figure 14 14 is a schematic diagram of another network device provided in an embodiment of the present application. Network device 140 may include: one or more processors 1401; one or more input devices 1402; one or more output devices 1403; and memory 1404. Processors 1401, input devices 1402, output devices 1403, and memory 1404 are connected via a bus 1405. Memory 1404 is used to store programs.

[0169] The processor 1401 may be a central processing unit (CPU), a general-purpose processor, a coprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The processor 1401 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0170] The input device 1402 may include an antenna, a communication interface, etc., and the output device 1403 may include an antenna, a communication interface, etc. Optionally, the input device 1402 may be a receiver, and the output device 1403 may be a transmitter. The input device 1402 and the output device 1403 may together form a transceiver.

[0171] The memory 1404 may include a read-only memory and a random access memory, and provides programs and data to the processor 1401. A portion of the memory 1404 may also include a non-volatile random access memory. For example, the memory 1404 may also store information about the device type.

[0172] The processor 1401 is configured to execute the program stored in the memory 1404 to perform the following operations:

[0173] Send a WUS to the terminal device. The WUS is used to indicate the paging downlink control information paging DCI is used to indicate the system information update, the paging DCI is used to schedule the paging message, or the paging DCI is used to indicate the system information update and to schedule the paging message. Optionally, the processor 1401 can send the WUS via the output device 1403, which can be a transmitter in the transceiver. Specifically, the execution method of this operation can refer to the above Figure 5 The description of step S501 in the method shown.

[0174] Send the paging DCI to the terminal device. Optionally, the processor 1401 can send the paging DCI via the output device 1403, and the output device 1403 can be a transmitter in the transceiver. Specifically, the execution method of this operation can refer to the above Figure 5 The description of step S503 in the method shown.

[0175] Figure 14 The implementation of each operation in can also refer to Figure 5 The corresponding description of the method embodiment shown.

[0176] pass Figure 14 The network device shown can send WUS to the terminal device. Accordingly, the terminal device can know in advance the type of paging event indicated by the paging DCI through the WUS. When the paging DCI is used to indicate a system information update, the terminal device can sleep after receiving the paging DCI and does not detect the PDSCH, thereby reducing the power consumption of the terminal device.

[0177] See also Figure 15 , Figure 15 150 is a schematic diagram of another network device provided in an embodiment of the present application. Network device 150 may include: one or more processors 1501; one or more input devices 1502; one or more output devices 1503; and memory 1504. Processors 1501, input devices 1502, output devices 1503, and memory 1504 are connected via a bus 1505. Memory 1504 is used to store programs.

[0178] The processor 1501 may be a central processing unit (CPU), a general-purpose processor, a coprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The processor 1501 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0179] The input device 1502 may include an antenna, a communication interface, etc., and the output device 1503 may include an antenna, a communication interface, etc. Optionally, the input device 1502 may be a receiver, and the output device 1503 may be a transmitter. The input device 1502 and the output device 1503 may together constitute a transceiver.

[0180] The memory 1504 may include a read-only memory and a random access memory, and provides programs and data to the processor 1501. A portion of the memory 1504 may also include a non-volatile random access memory. For example, the memory 1504 may also store information about the device type.

[0181] The processor 1501 is configured to execute the program stored in the memory 1504 to perform the following operations:

[0182] Send configuration information to the terminal device. The configuration information is used to instruct the network device to send the WUS in the first manner or the second manner. Optionally, the processor 1501 can send the WUS via the output device 1503, which can be a transmitter in the transceiver.

[0183] When the network device sends the WUS in the first manner, the WUS is not sent to the terminal device before the PO that does not need to wake up the terminal device.

[0184] When the network device sends WUS in the second manner, it sends WUS in the first state to the terminal device before waking up the PO of the terminal device. Figure 7 The description of step S701 in the method shown.

[0185] Figure 15 The implementation of each operation in can also refer to Figure 7 The corresponding description of the method embodiment shown.

[0186] pass Figure 15 The network device shown can send configuration information to the terminal, which specifies how the network device sends the WUS. The network device can send the WUS to the terminal device in different ways. If the WUS is a pseudo-random sequence, the terminal device can also perform synchronization measurement, channel state measurement, or radio resource management measurement based on the WUS, without the need for additional SSB signal detection, which can save power consumption of the terminal device.

[0187] The present application also provides a computer-readable storage medium, which includes a computer program or instruction. When the computer program or instruction is run on a computer, the computer executes the above-mentioned Figure 5 or Figure 7 The method implemented by the terminal device in the embodiment shown.

[0188] The present application also provides a computer-readable storage medium, which includes a computer program or instruction. When the computer program or instruction is run on a computer, the computer executes the above-mentioned Figure 5 or Figure 7 The method implemented by the network device in the embodiment shown.

[0189] The present application also provides a computer program product, which includes a computer program or instructions. When the computer program or instructions are run on a computer, the computer is enabled to perform the above-mentioned Figure 5 or Figure 7 The method implemented by the terminal device in the embodiment shown.

[0190] The present application also provides a computer program product, which includes a computer program or instructions. When the computer program or instructions are run on a computer, the computer is enabled to perform the above-mentioned Figure 5 or Figure 7 The method implemented by the network device in the embodiment shown.

[0191] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present application, and such modifications or substitutions should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: include: The terminal device receives a wake-up signal WUS sent by a network device; wherein, there is a correspondence between different WUS and different indication states, and the different indication states include: indicating that paging downlink control information paging DCI is used to indicate system information update, indicating that the paging DCI is used to schedule paging messages, and indicating that the paging DCI is used to indicate system information update and for scheduling paging messages; the terminal device receives the paging DCI according to the WUS.

2. The method according to claim 1, characterized in that The method further comprises: When the WUS is used to indicate that the paging DCI is used to indicate system information update, the terminal device sleeps after receiving the paging DCI.

3. The method according to claim 1, characterized in that The method further comprises: When the WUS is used to indicate that the paging DCI is used to schedule a paging message, or the paging DCI is used to indicate a system information update and to schedule a paging message, the terminal device receives a paging message according to the paging DCI.

4. The method according to any one of claims 1 to 3, characterized in that The method further comprises: The terminal device receives configuration information of the network device, where the configuration information is used to indicate a correspondence between the WUS and the indication state; Alternatively, the terminal device pre-stores a correspondence between the WUS and the indication status.

5. A communication method, characterized in that: The method comprises: The network device sends a wake-up signal WUS to the terminal device; wherein different WUSs correspond to different indication states, and the different indication states include: indicating that paging downlink control information paging DCI is used to indicate system information update, indicating that the paging DCI is used to schedule paging messages, and indicating that the paging DCI is used to indicate system information update and for scheduling paging messages; The network device sends the paging DCI to the terminal device.

6. The method according to claim 5, characterized in that The method further comprises: The network device sends configuration information to the terminal device, where the configuration information is used to indicate a corresponding relationship between the WUS and the indication status.

7. A terminal device, characterized in that: The terminal device includes a first receiving unit and a second receiving unit, wherein: The first receiving unit is configured to receive a wake-up signal WUS sent by a network device; wherein different WUSs correspond to different indication states, and the different indication states include: indicating that a paging DCI is used to indicate a system information update, indicating that the paging DCI is used to schedule a paging message, and indicating that the paging DCI is used to indicate a system information update and to schedule a paging message; The second receiving unit is configured to receive the paging DCI according to the WUS.

8. The terminal device according to claim 7, characterized in that The terminal device further includes an execution unit, which is configured to: When the WUS is used to indicate that the paging DCI is used to indicate system information update, sleeping is performed after receiving the paging DCI.

9. The terminal device according to claim 7, characterized in that The terminal device further includes an execution unit, which is configured to: When the WUS is used to indicate that the paging DCI is used to schedule a paging message, or the paging DCI is used to indicate system information update and to schedule a paging message, a paging message is received according to the paging DCI.

10. The terminal device according to any one of claims 7 to 9, characterized in that: The terminal device further includes a third receiving unit, and the third receiving unit is configured to: receiving configuration information of the network device, wherein the configuration information is used to indicate a correspondence between a WUS and an indication state; Alternatively, the terminal device further includes a storage unit, and the storage unit is used to pre-store the corresponding relationship between the WUS and the indication status.

11. A network device, comprising a first sending unit and a second sending unit, wherein: The first sending unit is configured to send a wake-up signal WUS to the terminal device; wherein there is a correspondence between different WUS and different indication states, and the different indication states include: indicating that the paging DCI is used to indicate system information update, indicating that the paging DCI is used to schedule a paging message, and indicating that the paging DCI is used to indicate system information update and for scheduling a paging message; The second sending unit is used to send the paging DCI to the terminal device.

12. The network device according to claim 11, further comprising a third sending unit, wherein the third sending unit is configured to: Send configuration information to the terminal device, where the configuration information is used to indicate a correspondence between the WUS and the indication status.

13. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, which implements the method according to any one of claims 1 to 4 when executed by a computing device.

14. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, which implements the method according to any one of claims 5 to 6 when executed by a computing device.

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