Communication method, apparatus and device, and chip and storage medium

Abstract

Provided in the embodiments of the present application is a communication method, which is applied to a first device. The method comprises: sending a wake-up signal to a second device, wherein the wake-up signal is used for indicating the second device to enter a first communication mode, and the wake-up signal is related to the second device exiting the first communication mode. In this way, a second device can enter a first communication mode on the basis of the indication of a wake-up signal, and can learn, on the basis of the wake-up signal, how to exit the first communication mode, or in other words, under what circumstances to exit the first communication mode.

Description

A communication method, apparatus, device, chip and storage medium TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of communication technology, in particular to a communication method, apparatus, device, chip and storage medium. BACKGROUND

[0002] In the next generation network, one of the main research directions is how the terminal device and the network device switch between the "small core mode or low power / low power consumption mode" and the "large core mode or high power / high power consumption mode". In order to achieve this goal, it is assumed that the terminal device and the network device work in the "small core mode or low power / low power consumption mode" by default, and the "large core mode or high power / high power consumption mode" is activated by sending an "indication information" from one party to the other party. However, after one party receives the "indication information" sent by the other party and switches to the "large core mode or high power / high power consumption mode", how to know when to exit the "large core mode or high power / high power consumption mode" is a problem that needs to be solved.

[0003] SUMMARY

[0004] Embodiments of the present application provide a communication method, apparatus, device, chip and storage medium.

[0005] In a first aspect, embodiments of the present application provide a communication method applied to a first device, the method comprising: sending a wake-up signal to a second device, the wake-up signal being used to instruct the second device to enter a first communication mode, and the wake-up signal being related to the second device exiting the first communication mode.

[0006] In a second aspect, embodiments of the present application provide a communication method applied to a second device, the method comprising: receiving a wake-up signal from a first device, the wake-up signal being used to instruct the second device to enter a first communication mode, and the wake-up signal being related to the second device exiting the first communication mode.

[0007] In a third aspect, embodiments of the present application provide a communication apparatus, comprising: a first communication unit configured to send a wake-up signal to a second device, the wake-up signal being used to instruct the second device to enter a first communication mode, and the wake-up signal being related to the second device exiting the first communication mode.

[0008] In a fourth aspect, embodiments of the present application provide a communication apparatus, comprising: a second communication unit configured to receive a wake-up signal from a first device, the wake-up signal being used to instruct the apparatus to enter a first communication mode, and the wake-up signal being related to the apparatus exiting the first communication mode.

[0009] In a fifth aspect, an embodiment of the present application provides a communication device, comprising: a memory, configured to store a computer program; a processor, connected to the memory, configured to invoke and run the computer program from the memory, so as to implement the method in the first aspect or the second aspect; and a transceiver, configured to receive and send information in a process of transmitting information with other devices.

[0010] In a sixth aspect, an embodiment of the present application provides a chip. The chip comprises: a processor, configured to invoke and run a computer program from a memory, so that a device installed with the chip executes the method in the first aspect or the second aspect; and a transceiver, configured to receive and send information in a process of transmitting information with a device or a chip.

[0011] In a seventh aspect, an embodiment of the present application provides a computer readable storage medium, configured to store a computer program, the computer program causing a computer to execute the method in the first aspect or the second aspect.

[0012] In the embodiment of the present application, the first device can send a wake-up signal to the second device, wherein the wake-up signal can be used to instruct the second device to enter the first communication mode, and the wake-up signal is related to the second device exiting the first communication mode. In this way, the second device can enter the first communication mode based on the instruction of the wake-up signal, and can know how to exit the first communication mode or in what case to exit the first communication mode according to the wake-up signal. BRIEF DESCRIPTION OF DRAWINGS

[0013] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of the present application, and illustrate the illustrative embodiments of the present application and its description, which serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0014] FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application;

[0015] FIG. 2 is a flow diagram of a communication method provided by an embodiment of the present application;

[0016] FIG. 3 is a schematic diagram of a possible implementation process of a communication method provided by an embodiment of the present application;

[0017] FIG. 4 is a schematic diagram of another possible implementation process of a communication method provided by an embodiment of the present application;

[0018] FIG. 5 is a schematic diagram of the structural composition of a communication device provided by an embodiment of the present application;

[0019] FIG. 6 is a schematic diagram of the structural composition of a communication device provided by an embodiment of the present application;

[0020] FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

[0021] FIG. 8 is a schematic structural diagram of a chip according to an embodiment of the present application;

[0022] FIG. 9 is a schematic block diagram of a communication system according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0024] FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present application.

[0025] As shown in FIG. 1, the communication system 100 can include a terminal device 110 and a network device 120. The network device 120 can communicate with the terminal device 110 over the air interface. The terminal device 110 and the network device 120 support multi-service transmission.

[0026] It should be understood that the embodiments of the present application are only exemplarily described with respect to the communication system 100, but the embodiments of the present application are not limited thereto. That is, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as a Long Term Evolution (LTE) system, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunication System (UMTS), an Internet of Things (IoT) system, a Narrow Band Internet of Things (NB-IoT) system, an enhanced Machine-Type Communications (eMTC) system, a 5G communication system (also referred to as a New Radio (NR) communication system), a 6G communication system, or a future communication system, etc.

[0027] In the communication system 100 shown in FIG. 1, the network device 120 can be an access network device that communicates with the terminal device 110. The access network device can provide communication coverage for a specific geographic area and can communicate with the terminal device 110 (e.g., a UE) located in the coverage area.

[0028] The network device 120 can be an evolved node B (eNB or eNodeB) in a long term evolution (LTE) system, or a next generation radio access network (NG RAN) device, or a base station (gNB) in a NR system, or a base station in a 6G system, or a radio controller in a cloud radio access network (CRAN), or a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved public land mobile network (PLMN), etc.

[0029] The terminal device 110 can be any terminal device, including but not limited to a terminal device connected to the network device 120 or other terminal devices by wire or wireless connection.

[0030] For example, the terminal device 110 can refer to an access terminal, a user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, an IoT device, a satellite handset, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device, or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, a terminal device in a 6G network, or a terminal device in a future evolved network, etc.

[0031] The terminal device 110 can be used for device-to-device (D2D) communication.

[0032] The communication system 100 can also include a core network device 130 in communication with the network device 120, which can be a 5G core (5GC) device, e.g., an Access and Mobility Management Function (AMF), e.g., an Authentication Server Function (AUSF), e.g., a User Plane Function (UPF), e.g., a Session Management Function (SMF). In some embodiments, the core network device 130 can also be an Evolved Packet Core (EPC) device of an LTE network, e.g., a Session Management Function + Core Packet Gateway (SMF+PGW-C) device. It should be understood that the SMF+PGW-C can implement the functions of both the SMF and the PGW-C. During the evolution of the network, the above-mentioned core network devices can also be referred to by other names, or new network entities can be formed by dividing the functions of the core network, which are not limited in the embodiments of the present application.

[0033] The various functional units in the communication system 100 can also be connected and communicate through a next generation (NG) interface.

[0034] For example, a terminal device establishes an air interface connection with an access network device through an NR interface, which is used to transmit user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with an AMF through an NG interface 1 (N1 for short); the access network device, e.g., a next generation wireless access base station (gNB), can establish a user plane data connection with a UPF through an NG interface 3 (N3 for short); the access network device can establish a control plane signaling connection with the AMF through an NG interface 2 (N2 for short); the UPF can establish a control plane signaling connection with an SMF through an NG interface 4 (N4 for short); the UPF can interact with a data network to transmit user plane data through an NG interface 6 (N6 for short); the AMF can establish a control plane signaling connection with the SMF through an NG interface 11 (N11 for short); the SMF can establish a control plane signaling connection with a PCF through an NG interface 7 (N7 for short).

[0035] Fig. 1 exemplarily shows one network device, one core network device and two terminal devices. Optionally, the communication system 100 can include multiple network devices and each network device can include other number of terminal devices within its coverage range, which is not limited in the embodiments of the present application.

[0036] It should be noted that Fig. 1 is only schematically shown as an example of the system to which the embodiments of the present application are applicable. Of course, the method shown in the embodiments of the present application can also be applicable to other systems. In addition, the terms "system" and "network" are often used interchangeably in the present application. The term "and / or" in the present application is only used to describe the association relationship of the associated objects. It means that there can be three relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects. It should also be understood that the "indication" mentioned in the embodiments of the present application can be direct indication or indirect indication, or can represent an associated relationship. For example, A indicates B, which can mean that B can be obtained through A; or it can mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; or it can mean that A and B have an associated relationship. It should also be understood that the "corresponding" mentioned in the embodiments of the present application can represent a direct corresponding or indirect corresponding relationship between the two, or can represent an associated relationship between the two, or can mean an indication and being indicated, a configuration and being configured, etc. It should also be understood that the "predefined" or "predefined rule" mentioned in the embodiments of the present application can be realized by pre-saving the corresponding code, table or other means that can be used to indicate the relevant information in the device (for example, including terminal device and network device), and the specific implementation manner is not limited in the present application. For example, the predefined can mean the definition in the protocol. It should also be understood that the "protocol" in the embodiments of the present application can mean the standard protocol in the communication field, for example, it can include the LTE protocol, the NR protocol and the related protocol applied to the future communication system, which is not limited in the present application.

[0037] In order to facilitate the understanding of the technical solutions of the embodiments of the present application, the related technologies of the embodiments of the present application are described as follows. The following related technologies can be combined with the technical solutions of the embodiments of the present application in any way, and all of them belong to the protection scope of the embodiments of the present application.

[0038] 1. Application scenarios of 5G

[0039] With the pursuit of rate, delay, high mobility, energy efficiency and the increasing diversity and complexity of services in future life, the 3rd Generation Partnership Project (3GPP) international standard organization began to develop 5G. The main application scenarios of 5G are: enhanced mobile broadband (eMBB), low latency and high reliability communication (URLLC), and large-scale machine type communication (mMTC).

[0040] eMBB still aims to obtain multimedia content, services and data for users, and its demand is growing rapidly. On the other hand, since eMBB can be deployed in different scenarios such as indoor, urban, rural, etc., its capabilities and requirements vary greatly, so it cannot be generalized and must be analyzed in detail in combination with specific deployment scenarios. Typical applications of URLLC include industrial automation, power automation, remote medical operations (surgery), traffic safety assurance, etc. The typical characteristics of mMTC include high connection density, small data volume, delay-insensitive services, low-cost modules, and long service life, etc.

[0041] NR can also be deployed independently. In order to reduce air signaling and quickly recover wireless connection and data service in 5G network environment, a new radio resource control (RRC) state, RRC_INACTIVE state, is defined. This state is different from RRC_IDLE and RRC_ACTIVE states.

[0042] RRC_IDLE: mobility is based on UE cell selection and reselection, paging is initiated by the core network (CN), and the paging area is configured by the CN. There is no UE AS context on the base station side. There is no RRC connection.

[0043] RRC_CONNECTED: there is an RRC connection, and there is a UE access layer (AS) context between the base station and the UE. The network side knows the location of the UE is specific to the cell level. Mobility is network-controlled mobility. Unicast data can be transmitted between the UE and the base station.

[0044] RRC_INACTIVE: mobility is based on UE cell selection and reselection, there is a connection between CN and NR, UE AS context exists on a certain base station, paging is triggered by the radio access network (RAN), and the RAN-based paging area is managed by the RAN. The network side knows the location of the UE is based on the RAN-based paging area level.

[0045] 2. 5G network energy saving project

[0046] Terminal energy saving techniques also include optimizing the power consumption of terminals in idle / inactive mode and connected mode. Different improvement schemes are proposed in the following releases for 5G UE energy saving:

[0047] R16

[0048] For connected mode, a wake-up signal (WUS) is introduced to indicate when the UE starts the on-duration of discontinuous reception (DRX), thereby reducing unnecessary physical downlink control channel (PDCCH) monitoring.

[0049] For CA, secondary cell (SCell) dormancy is introduced to reduce PDCCH monitoring on SCell.

[0050] R17

[0051] For idle / inactive mode, paging early indication (PEI) is introduced to indicate whether the UE needs to monitor paging, thereby reducing unnecessary paging monitoring.

[0052] For connected mode, PDCCH skipping and search space set group (SSSG) switching are introduced to reduce unnecessary PDCCH monitoring of the UE.

[0053] R18, R19

[0054] TR 38.869 summarizes the research results of R18 SI LP-WUS, which assumes that there is a low-power receiver (LR) and a main receiver (MR) in the UE.

[0055] For idle / inactive mode, MR paging monitoring can be triggered by a low-power WUS (LP-WUS).

[0056] For connected mode, MR PDCCH monitoring can be triggered by an LP-WUS.

[0057] Through these technologies, the 5G UE energy saving project aims to reduce power consumption as much as possible without affecting performance and quality of service, and prolong battery life.

[0058] In order to reduce the energy consumption of 5G network, the wireless communication system needs to realize energy saving technology in time, frequency, space and power domains. These technologies include the following:

[0059] R18

[0060] Spatial domain and power domain adaptive channel state information (CSI) enhancement can adjust beamforming and transmit power according to channel state and data transmission requirements to improve energy efficiency.

[0061] Cell discontinuous transmission (DTX) / DRX mechanism in time domain can dynamically adjust the cell state according to traffic load and coverage requirements, so that the inactive cell enters low power consumption mode and reduces static power consumption.

[0062] SSB-less SCell operation of cross-band carrier aggregation (CA) can avoid secondary cell sending SSB signal, reduce signaling overhead and power consumption, while ensuring the connection performance and reliability of the primary cell.

[0063] R19

[0064] On-demand SSB SCell operation of UE configured with CA in connected mode can dynamically decide whether to send SSB signal according to the location and speed of UE, as well as the time slot and period of transmission, further improving the energy efficiency of cross-band CA.

[0065] On-demand SIB1 in idle / inactive mode can dynamically decide whether to send SIB1 signal according to the mobility and service type of UE, as well as the time slot and period of transmission, reducing the scanning and searching consumption in idle mode.

[0066] Through the above technologies, the 5G network energy saving project aims to reduce energy consumption as much as possible without affecting coverage and capacity, reduce operating costs, and improve environmental sustainability.

[0067] The above briefly describes the related technologies / terms involved in this application, which will not be repeated in the following embodiments.

[0068] In the next generation network, one of the main research directions is how terminal devices and network devices work and switch between the following two modes:

[0069] 1) small core mode or low power / low power consumption mode. The power consumption of the terminal device and the network device in this mode is low, but only simple functions can be implemented.

[0070] 2) large core mode or high power / high power consumption mode. The power consumption of the terminal device and the network device in this mode is high, but more complex functions can be implemented

[0071] In order to realize flexible switching of the terminal device and the network device in the two modes, it is assumed that the terminal device and the network device work in the "small core mode or low power / low power consumption mode" by default, and the "large core mode or high power / high power consumption mode" is activated by sending an "indication information" to the other party. However, after one party receives the "indication information" sent by the other party and switches to the "large core mode or high power / high power consumption mode", how to know when to exit the "large core mode or high power / high power consumption mode" is a problem to be solved.

[0072] Therefore, the present application provides a communication method, device, equipment, chip and storage medium. In the method, a first device can send a wake-up signal to a second device, wherein the wake-up signal can be used to indicate the second device to enter a first communication mode, and the wake-up signal is related to the second device exiting the first communication mode. In this way, the second device can enter the first communication mode (such as "large core mode or high power / high power consumption mode") based on the indication of the wake-up signal, and can know how to exit the first communication mode or in what case to exit the first communication mode according to the wake-up signal.

[0073] In order to facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail through specific embodiments. The above related technologies can be combined with the technical solutions of the embodiments of the present application as optional solutions, which all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0074] FIG. 2 is a flowchart of a communication method provided by an embodiment of the present application. As shown in FIG. 2, the method can include the following steps:

[0075] S201, the first device sends a wake-up signal to the second device, the wake-up signal being used to indicate the second device to enter a first communication mode, and the wake-up signal being related to the second device exiting the first communication mode.

[0076] In the embodiment, the first device can send a wake-up signal to the second device, and correspondingly, the second device can receive the wake-up signal from the first device.

[0077] In some embodiments, the wake-up signal can be used to indicate the second device to enter the first communication mode, so that the second device can enter the first communication mode based on the indication of the wake-up signal after receiving the wake-up signal.

[0078] In a possible scenario, the second device can enter the first communication mode immediately after receiving the wake-up signal; in another possible scenario, the second device can enter the first communication mode after a time interval after receiving the wake-up signal, and embodiments of the present application do not limit the time interval.

[0079] In some embodiments, the first device can enter the first communication mode after sending the wake-up signal to the second device. That is, the first device can make the first device and the second device enter the first communication mode together by sending the wake-up signal to the second device.

[0080] In a possible scenario, the first device can enter the first communication mode immediately after sending the wake-up signal; in another possible scenario, the first device can enter the first communication mode after a time interval after sending the wake-up signal, and embodiments of the present application do not limit the time interval.

[0081] In some embodiments, the time when the first device and the second device enter the first communication mode can be the same or different, and embodiments of the present application do not limit this.

[0082] In some embodiments, the wake-up signal is related to the second device exiting the first communication mode. That is, the second device can know how to exit the first communication mode or in what case to exit the first communication mode according to the wake-up signal after entering the first communication mode based on the indication of the wake-up signal.

[0083] In some embodiments, the first communication mode can be a large core mode, a high power mode or a high power consumption mode. That is, the first device can trigger the second device to enter the large core mode, the high power mode or the high power consumption mode by sending the wake-up signal to the second device. In this way, if the first device does not send the wake-up signal to the second device, the second device does not need to enter the large core mode, the high power mode or the high power consumption mode, thus being conducive to reducing the energy consumption of the second device. Further, the second device can also know in what case to exit the large core mode, the high power mode or the high power consumption mode according to the wake-up signal.

[0084] In some embodiments, the second device exiting the first communication mode includes: the second device exiting the first communication mode and working in the second communication mode. That is, the second device exiting the first communication mode can also be understood as the second device exiting the first communication mode and working in the second communication mode. That is, the second device can know in what case to exit the first communication mode and work in the second communication mode according to the wake-up signal after entering the first communication mode based on the indication of the wake-up signal. In some embodiments, the second communication mode can be a small core mode, a low power mode or a low power consumption mode.

[0085] In some embodiments, the second device works in the second communication mode before entering the first communication mode based on the indication of the wake-up signal.

[0086] In a first possible scenario (denoted as scenario #1), the first device is a terminal device and the second device is a network device. In this scenario, the wake-up signal sent by the first device (terminal device) to the second device (network device) can be an uplink wake-up signal (UL-WUS).

[0087] The scheme applicable to scenario #1 is introduced as follows.

[0088] In some embodiments, the wake-up signal can also be used to request performing a first operation in the first communication mode. That is, the terminal device can request performing a first operation in the first communication mode by sending the wake-up signal to the network device.

[0089] In some embodiments, the first operation can include one or more of the following 11) to 17):

[0090] 11) receiving a Synchronization Signal Block (SSB) from the second device (network device).

[0091] The terminal device can request receiving a SSB from the network device in the first communication mode by sending the wake-up signal to the network device. Or in other words, the terminal device can request the network device to send a SSB to the terminal device in the first communication mode by sending the wake-up signal to the network device. In this case, the network device can enter the first communication mode and send a SSB to the terminal device in the first communication mode after receiving the wake-up signal from the terminal device.

[0092] 12) receiving system information from the second device (network device).

[0093] The terminal device can request receiving system information (e.g., System Information Block (SIB)) from the network device in the first communication mode by sending the wake-up signal to the network device. Or in other words, the terminal device can request the network device to send system information to the terminal device in the first communication mode by sending the wake-up signal to the network device. In this case, the network device can enter the first communication mode and send system information to the terminal device in the first communication mode after receiving the wake-up signal from the terminal device.

[0094] In some embodiments, the wake-up signal can further indicate which system information (e.g., SIB) the terminal device specifically needs to receive from the network device.

[0095] 13) receiving data (downlink data) from the second device (network device).

[0096] The terminal device can send a wake-up signal to the network device to request receiving data from the network device in the first communication mode. Alternatively, the terminal device can send a wake-up signal to the network device to request the network device to send data to the terminal device in the first communication mode. In this case, the network device can enter the first communication mode and send data to the terminal device in the first communication mode after receiving the wake-up signal from the terminal device.

[0097] In some embodiments, receiving data from the second device comprises receiving data from the second device through a physical downlink shared channel (PDSCH). That is, the terminal device can send a wake-up signal to the network device to request receiving data from the network device through the PDSCH in the first communication mode. Accordingly, the network device can enter the first communication mode and send data to the terminal device through the PDSCH in the first communication mode after receiving the wake-up signal from the terminal device.

[0098] 14) sending a random access request to the second device (network device).

[0099] The terminal device can send a wake-up signal to the network device to request sending a random access request to the network device in the first communication mode. Alternatively, the terminal device can send a wake-up signal to the network device to request the network device to receive a random access request from the terminal device in the first communication mode. In this case, the network device can enter the first communication mode and receive a random access request from the terminal device in the first communication mode after receiving the wake-up signal from the terminal device.

[0100] 15) sending a scheduling request (SR) to the second device (network device).

[0101] The terminal device can send a wake-up signal to the network device to request sending an SR to the network device in the first communication mode. Alternatively, the terminal device can send a wake-up signal to the network device to request the network device to receive an SR from the terminal device in the first communication mode. In this case, the network device can enter the first communication mode and receive an SR from the terminal device in the first communication mode after receiving the wake-up signal from the terminal device.

[0102] 16) sending data to the second device (network device).

[0103] The terminal device can send a wake-up signal to the network device to request sending data to the network device in the first communication mode. Alternatively, the terminal device can send a wake-up signal to the network device to request the network device to receive data from the terminal device in the first communication mode. In this case, the network device can enter the first communication mode and receive data from the terminal device in the first communication mode after receiving the wake-up signal from the terminal device.

[0104] In some embodiments, sending data to the second device includes sending data to the second device through a physical uplink shared channel (PUSCH). That is, the terminal device can send a wake-up signal to the network device to request sending data to the network device in the first communication mode through the PUSCH. Accordingly, the network device can enter the first communication mode and receive data from the terminal device in the first communication mode through the PUSCH after receiving the wake-up signal from the terminal device.

[0105] In some embodiments, sending data to the second device includes sending uplink data to the second device in a small data transmission (SDT) mode, or sending uplink data to the second device without using the SDT mode.

[0106] In one example, sending data to the second device includes sending uplink data to the second device in the SDT mode. That is, the terminal device can send a wake-up signal to the network device to request sending uplink data to the network device in the first communication mode in the SDT mode. Alternatively, the wake-up signal can be used to request performing SDT-based uplink data transmission in the first communication mode. Accordingly, the network device can enter the first communication mode and receive uplink data from the terminal device in the SDT mode after receiving the wake-up signal from the terminal device.

[0107] In another example, sending data to the second device includes sending uplink data to the second device without using the SDT mode. That is, the terminal device can send a wake-up signal to the network device to request sending uplink data to the second device in the first communication mode without using the SDT mode. Alternatively, the wake-up signal can be used to request performing non-SDT (or non-SDT-based) uplink data transmission in the first communication mode. Accordingly, the network device can enter the first communication mode and receive uplink data from the terminal device without using the SDT mode after receiving the wake-up signal from the terminal device.

[0108] In some embodiments, the wake-up signal can further indicate whether the small data transmission manner is a random access-based SDT (RA-SDT) or a configured grant-based SDT (CG-SDT).

[0109] For example, the wake-up signal can include an indication information indicating whether the small data transmission manner is a RA-SDT or a CG-SDT; for another example, the first configuration of the wake-up signal corresponding to the RA-SDT is different from the first configuration of the wake-up signal corresponding to the CG-SDT, so that the network device can determine whether the small data transmission manner is a RA-SDT or a CG-SDT according to the first configuration of the received wake-up signal. As an example, the first configuration of the wake-up signal can include one or more of time-frequency resources, a sequence, and other layer 1 (L1) features (such as cyclic shift) of the wake-up signal.

[0110] 17) performing the first measurement.

[0111] The terminal device can send a wake-up signal to the network device to request performing the first measurement in the first communication mode. In this case, after receiving the wake-up signal from the terminal device, the network device can enter the first communication mode and perform the first measurement in cooperation with the terminal device in the first communication mode.

[0112] In some embodiments, the first measurement is related to one or more of the following: radio link monitoring (RLM); radio resource management (RRM) measurement; beam failure detection (BFD).

[0113] According to the method of the present embodiment, the terminal device can send a wake-up signal to the network device to make the system enter the first communication mode and complete the first operation in the first communication mode. In some scenarios, the first operation can include multiple steps, that is, the terminal device sends a wake-up signal once to make the system execute a series of steps in the first communication mode, without the need to frequently send the wake-up signal to trigger the system to enter the first communication mode and execute the corresponding steps, thereby reducing the wake-up time of the terminal device, improving the wake-up efficiency, and improving the reliability of executing the series of steps.

[0114] In a second possible scenario (denoted as scenario #2), the first device is a network device, and the second device is a terminal device. In this scenario, the wake-up signal sent by the first device (the network device) to the second device (the terminal device) can be a downlink wake-up signal (DL-WUS).

[0115] The following describes a scheme applicable to scenario #2.

[0116] In some embodiments, the second device (the terminal device) can be in an IDLE state, an INACTIVE state, or a CONNECTED state.

[0117] That is, the network device can send a wake-up signal to the terminal device when the terminal device is in an IDLE state, an INACTIVE state, or a CONNECTED state.

[0118] In a possible manner, if the terminal device is in an IDLE state, and the network device has downlink data to be sent to the terminal device, the network device can send a wake-up signal containing third information and / or fourth information to the terminal device.

[0119] In a possible manner, if the terminal device is in an INACTIVE state, and the network device has downlink data to be sent to the terminal device, the network device can send a wake-up signal containing third information and / or fourth information to the terminal device.

[0120] Exemplarily, the third information can be paging-related information, used to instruct the terminal device to receive a paging message in the first communication mode. Thus, after receiving the wake-up signal containing the third information, the terminal device can enter the first communication mode and receive the paging message from the network device.

[0121] Exemplarily, the fourth information can be random access channel (RACH) configuration information, used for the terminal device to send a random access request. Thus, after receiving the wake-up signal containing the fourth information, the terminal device can enter the first communication mode and send a random access request to the network device based on the fourth information (RACH configuration information).

[0122] It should be noted that only the terminal device that is paged (i.e., the terminal device that receives the paging message) needs to send a random access request, and the terminal device that is not paged does not need to send a random access request.

[0123] In a possible manner, if the terminal device is in a CONNECTED state, and the network device has downlink data to be sent to the terminal device, the network device can send a wake-up signal containing fifth information to the terminal device.

[0124] Exemplarily, the fifth information can be information related to downlink data, for instructing the terminal device to receive the downlink data in the first communication mode. Thus, after receiving the wake-up signal containing the fifth information, the terminal device can enter the first communication mode and receive the downlink data from the network device. In some embodiments, after entering the first communication mode, the terminal device can also send uplink data to the network device.

[0125] In some embodiments, the wake-up signal can also be used to instruct the second device (terminal device) to perform a first operation in the first communication mode. That is, the network device can instruct the terminal device to perform the first operation in the first communication mode by sending the wake-up signal to the terminal device.

[0126] In some embodiments, the first operation can include one or more of the following 21) to 24):

[0127] 21) receiving a paging message.

[0128] The network device can instruct the terminal device to receive the paging message in the first communication mode by sending the wake-up signal to the terminal device. In this case, after receiving the wake-up signal from the network device, the terminal device can enter the first communication mode and receive the paging message from the network device in the first communication mode.

[0129] 22) sending a random access request.

[0130] The network device can instruct the terminal device to send the random access request in the first communication mode by sending the wake-up signal to the terminal device. In this case, after receiving the wake-up signal from the network device, the terminal device can enter the first communication mode and send the random access request to the network device in the first communication mode.

[0131] 23) receiving data (downlink data) from the first device (network device).

[0132] The network device can instruct the terminal device to receive the data (downlink data) from the network device in the first communication mode by sending the wake-up signal to the terminal device. In this case, after receiving the wake-up signal from the network device, the terminal device can enter the first communication mode and receive the data (downlink data) from the network device in the first communication mode.

[0133] 24) performing a first measurement.

[0134] The network device can instruct the terminal device to perform the first measurement in the first communication mode by sending the wake-up signal to the terminal device. In this case, after receiving the wake-up signal from the network device, the terminal device can enter the first communication mode and perform the first measurement in the first communication mode.

[0135] In some embodiments, the first measurement relates to one or more of: RLM; RRM measurement; BFD.

[0136] According to the method of the present embodiment, the network device can make the system enter the first communication mode by sending the wake-up signal to the terminal device, and complete the first operation in the first communication mode. In some scenarios, the first operation can include a plurality of steps, that is, the network device sends a wake-up signal once, and can make the system execute a series of steps in the first communication mode, without the need to frequently send the wake-up signal to trigger the system to enter the first communication mode and execute the corresponding steps, thereby reducing the wake-up time of the terminal device, improving the wake-up efficiency, and at the same time improving the reliability of executing the series of steps.

[0137] In some embodiments, for scenario #1 and scenario #2, the condition under which the second device exits the first communication mode can include that the first operation has been completed.

[0138] Exemplarily, for scenario #1, the condition under which the second device (the network device) exits the first communication mode can include one or more of the following 31) to 37):

[0139] 31) The network device has sent an SSB to the terminal device; or in other words, the terminal device has received the SSB from the network device; or in other words, the network device and the terminal device have completed the transmission / reception of the SSB.

[0140] 32) The network device has sent system information to the terminal device; or in other words, the terminal device has received the system information from the network device; or in other words, the network device and the terminal device have completed the transmission / reception of the system information.

[0141] 33) The network device has sent data to the terminal device; or in other words, the terminal device has received the data from the network device; or in other words, the network device and the terminal device have completed the transmission / reception of the data (downlink data).

[0142] 34) The network device has received a random access request from the terminal device; or in other words, the terminal device has sent the random access request to the network device; or in other words, the network device and the terminal device have completed the transmission / reception of the random access request.

[0143] 35) The network device has received an SR from the terminal device; or in other words, the terminal device has sent the SR to the network device; or in other words, the network device and the terminal device have completed the transmission / reception of the SR.

[0144] 36) the network device has received data from the terminal device; or in other words, the terminal device has sent data to the network device; or in other words, the network device and the terminal device have completed the transmission / reception of data (uplink data).

[0145] 37) the first measurement has been completed.

[0146] Exemplarily, for scenario #2, the condition under which the second device (terminal device) exits the first communication mode can comprise one or more of the following 41) to 44):

[0147] 41) the terminal device has received a paging message from the network device; or in other words, the network device has sent a paging message to the terminal device; or in other words, the network device and the terminal device have completed the transmission / reception of the paging message.

[0148] 42) the terminal device has sent a random access request to the network device; or in other words, the network device has received a random access request from the terminal device; or in other words, the network device and the terminal device have completed the transmission / reception of the random access request.

[0149] 43) the terminal device has received data from the network device; or in other words, the network device has sent data to the terminal device; or in other words, the network device and the terminal device have completed the transmission / reception of data (downlink data).

[0150] 44) the first measurement has been completed.

[0151] In some embodiments, for scenario #1 and scenario #2, the condition under which the second device exits the first communication mode can comprise: the timing duration of the timer reaching a first duration.

[0152] For example, for scenario #1, if the timing duration of the timer reaches the first duration, the network device can exit the first communication mode; for example, for scenario #2, if the timing duration of the timer reaches the first duration, the terminal device can exit the first communication mode.

[0153] In some embodiments, the first duration can be indicated by the wake-up signal.

[0154] In one possible way, the wake-up signal can contain an indication information for indicating the first duration.

[0155] In one possible way, the first configuration of the wake-up signal corresponding to different durations is different, so that the second device can learn the corresponding duration (i.e. the first duration) according to the first configuration of the received wake-up signal. As an example, the first configuration of the wake-up signal can comprise one or more of the following: time-frequency resource of the wake-up signal, sequence, other layer 1 features (such as cyclic shift).

[0156] In some embodiments, the first time duration is pre-configured.

[0157] In some embodiments, the timer starts timing from a first time instant; wherein the first time instant is a time instant at which the second device receives the wake-up signal; or the first time instant is a time instant at which the second device transmits or receives information in the process of maintaining the first communication mode.

[0158] In one example, the first time instant is a time instant at which the second device receives the wake-up signal. That is, the timer can start timing from the time instant at which the second device receives the wake-up signal, and if the timing duration reaches the first time duration, the second device can exit the first communication mode.

[0159] In another example, the first time instant is a time instant at which the second device transmits or receives information in the process of maintaining the first communication mode.

[0160] For example, in the process of maintaining the first communication mode, if the second device performs the operation of transmitting or receiving information, the timer can start (or restart) timing from the time instant at which the information is transmitted or received, and if the timing duration reaches the first time duration, the second device can exit the first communication mode.

[0161] In one possible manner, the timer can start timing from the time instant at which the second device receives the wake-up signal, and in the process of timing, if the second device performs the operation of transmitting or receiving information, the timer can restart timing from the time instant at which the information is transmitted or received, and if the timing duration reaches the first time duration, the second device can exit the first communication mode.

[0162] In some embodiments, the configuration (denoted as the first configuration) for transmitting the wake-up signal can include one or more of the following: time-frequency resources occupied by the wake-up signal; a sequence used by the wake-up signal; layer 1 features (such as cyclic shift) of the wake-up signal.

[0163] In some embodiments, the first configuration corresponding to different first operations (i.e., the configuration for transmitting the wake-up signal) is different. For example, for different first operations, the first device can use different time-frequency resources, sequences or other layer 1 features to transmit the wake-up signal.

[0164] According to the method of the present embodiment, since the first configuration corresponding to different first operations is different, the second device can quickly identify the corresponding first operation according to the first configuration.

[0165] In some embodiments, the first configuration can be configured by a network device.

[0166] In some embodiments, the first configuration can be carried in a system message sent by the network device to the terminal device, or can be carried in configuration information sent by the network device to the terminal device when the terminal device enters the RRC_CONNECTED state for the first time (for example, can be carried in an RRCRelease message).

[0167] In some embodiments, for scenario #1 and scenario #2, the method can further include: the first device sending first information to the second device, and correspondingly, the second device receiving the first information from the first device. The first information is used to instruct the second device to exit the first communication mode.

[0168] For example, for scenario #1, the terminal device can send first information to the network device to instruct the network device to exit the first communication mode. Thus, the network device can exit the first communication mode after receiving the first information. In some scenarios, the terminal device can exit the first communication mode after sending the first information to the network device, so that the terminal device and the network device can uniformly exit the first communication mode.

[0169] For example, for scenario #2, the network device can send first information to the terminal device to instruct the terminal device to exit the first communication mode. Thus, the terminal device can exit the first communication mode after receiving the first information. In some scenarios, the network device can exit the first communication mode after sending the first information to the terminal device, so that the terminal device and the network device can uniformly exit the first communication mode.

[0170] According to the method of the embodiment, the second device can not only exit the first communication mode according to the wake-up signal, but also exit the first communication mode according to the first information, so that the timing of the second device exiting the first communication mode can be flexibly controlled.

[0171] In some embodiments, the first information can include second information, and the second information can be used to indicate the time when the second device enters the first communication mode next time. Thus, when the time indicated by the second information comes, the second device can enter the first communication mode again.

[0172] The above introduces the communication method provided by the embodiments of the present application. In order to facilitate the understanding of the embodiments of the present application, the possible implementation schemes of the communication method suitable for the embodiments of the present application are introduced below.

[0173] The two implementation schemes (referred to as scheme one and scheme two) provided by the embodiments of the present application are introduced below.

[0174] Scheme one

[0175] In scheme one, the system can be triggered to enter the "big core mode or high power / high power consumption mode" through uplink signaling. For example, the system can be triggered to enter the "big core mode or high power / high power consumption mode" using UL-WUS. Wherein, the system refers to a communication system including a terminal device and a network device.

[0176] Exemplarily, after the network device enters the "big core mode or high power / high power consumption mode", one or more of the following a1) to a6) operations can be performed:

[0177] a1) sending SSB to the terminal device;

[0178] a2) sending SIB to the terminal device;

[0179] a3) receiving random access request or RACH from the terminal device;

[0180] a4) receiving SR from the terminal device;

[0181] a5) performing SDT-based or non-SDT-based data transmission;

[0182] a6) sending reference signals to the terminal device for performing RLM, RRM, BFD, etc. related measurements.

[0183] Further, the network device can know under what circumstances to exit the "big core mode or high power / high power consumption mode" according to the UL-WUS, so that the terminal device and the network device can be in the "big core mode or high power / high power consumption mode" or "small core mode or low power / low power consumption mode" together.

[0184] Exemplarily, the scenarios applicable to scheme one can include but are not limited to one or more of the following b1) to b4):

[0185] b1) the terminal device needs to request SSB and / or SIB in order to switch from IDLE or INACTIVE state to CONNECTED state.

[0186] b2) the terminal device needs to request random access (or in other words, the terminal device needs to send random access request to the network device) and non-SDT transmission in order to perform non-SDT-based uplink data transmission and / or perform downlink data reception.

[0187] Wherein, the initial state of the terminal device can be IDLE or INACTIVE state, and the terminal device can switch to CONNECTED state when performing non-SDT-based uplink data transmission and / or performing downlink data reception.

[0188] b3) the terminal device needs to request random access (or in other words, the terminal device needs to send a random access request to the network device) and SDT transmission in order to perform SDT-based uplink data transmission and / or perform downlink data reception.

[0189] The initial state of the terminal device can be an IDLE or INACTIVE state.

[0190] Further, the SDT can be a RA-SDT or a CG-SDT.

[0191] b4) the terminal device needs to send an SR to the network device and needs to request non-SDT transmission in order to perform uplink data transmission and / or downlink data reception in the CONNECTED state.

[0192] In some embodiments, the UL-WUS can also indicate whether the system needs to perform measurement in a "big core mode or high power / high power consumption mode". For example, for b4) above, the terminal device can send the UL-WUS to the network device to indicate that the terminal device needs to send an SR to the network device and needs to request non-SDT transmission, and can also indicate whether the system needs to perform measurement in a "big core mode or high power / high power consumption mode". The measurement may, for example, include one or more of RLM, RRM, BFD, and other related measurements.

[0193] FIG. 3 shows a possible implementation flowchart of scheme one. As shown in FIG. 3, the implementation flowchart can include the following steps:

[0194] S301, the terminal device and the network device work in a "small core mode or low power / low power consumption mode".

[0195] S302, the terminal device sends an UL-WUS to the network device.

[0196] In this step, the terminal device can send an UL-WUS to the network device to indicate that the terminal device needs the network device to cooperate to enter a "big core mode or high power / high power consumption mode".

[0197] In some embodiments, before sending the UL-WUS to the network device, the terminal device can receive configuration information from the network device about sending the UL-WUS, and then send the UL-WUS to the network device according to the configuration information. As an example, the configuration information can include parameters such as time-frequency resources, sequence, power, etc. of the UL-WUS.

[0198] In some embodiments, the configuration information can be a system message, or can be the configuration obtained by the terminal device when it last entered the RRC_CONNECTED state (for example, the configuration carried by the RRCRelease message).

[0199] S303, the terminal device and the network device enter the "big core mode or high power / high power consumption mode".

[0200] After the terminal device sends the UL-WUS to the network device, the terminal device can enter the "big core mode or high power / high power consumption mode". Correspondingly, after the network device receives the UL-WUS, the network device can enter the "big core mode or high power / high power consumption mode".

[0201] In some embodiments, after the terminal device sends the UL-WUS, the terminal device can immediately enter the "big core mode or high power / high power consumption mode", or can enter the "big core mode or high power / high power consumption mode" after a time interval, which is not limited by the embodiments of the present application. Correspondingly, after the network device receives the UL-WUS, the network device can immediately enter the "big core mode or high power / high power consumption mode", or can enter the "big core mode or high power / high power consumption mode" after a time interval, which is not limited by the embodiments of the present application.

[0202] In some embodiments, the time when the terminal device and the network device enter the "big core mode or high power / high power consumption mode" can be the same or different, which is not limited by the embodiments of the present application.

[0203] In some embodiments, after the network device receives the UL-WUS from the terminal device, the network device can determine the requirement of the terminal device according to one or more of the time-frequency resource, the sequence, and other L1 features (such as cyclic shift) of the UL-WUS. Further, the network device can allocate corresponding resources to the terminal device according to the requirement of the terminal device.

[0204] In some embodiments, the requirement of the terminal device can include one or more of the following c1) to c6):

[0205] c1) The terminal device needs to receive SSB and / or SIB from the network device. In this case, the network device can send SSB and / or SIB to the terminal device in the subsequent process.

[0206] In some embodiments, in the case that the terminal device needs to receive SIB from the network device, the UL-WUS can further indicate which SIB or SIBs the terminal device specifically needs to receive.

[0207] For example, the UL-WUS can contain an indication information indicating which SIB(s) the terminal device needs to receive; for another example, the UL-WUS corresponding to different SIBs can have different time-frequency resources, sequences or other L1 features (e.g., cyclic shift), so that the network device can know which SIB(s) the terminal device needs to receive according to the time-frequency resources, sequences or other L1 features (e.g., cyclic shift) of the UL-WUS.

[0208] c2) The terminal device needs to send a random access request or RACH to the network device. In this case, the network device can receive the random access request or RACH from the terminal device in the subsequent process.

[0209] c3) The terminal device needs to send an SR to the network device. In this case, the network device can receive the SR from the terminal device in the subsequent process.

[0210] c4) The terminal device needs to send a PUSCH based on / without SDT to the network device. In this case, the network device can receive the PUSCH based on / without SDT in the subsequent process.

[0211] In some embodiments, the UL-WUS can further indicate whether the SDT is RA-SDT or CG-SDT.

[0212] For example, the UL-WUS can contain an indication information indicating whether the SDT is RA-SDT or CG-SDT; for another example, the UL-WUS corresponding to RA-SDT and CG-SDT can have different time-frequency resources, sequences or other L1 features (e.g., cyclic shift), so that the network device can know whether the SDT is RA-SDT or CG-SDT according to the time-frequency resources, sequences or other L1 features (e.g., cyclic shift) of the UL-WUS.

[0213] c5) The terminal device needs to receive a PDSCH from the network device. In this case, the network device can send the PDSCH to the terminal device in the subsequent process.

[0214] c6) The terminal device needs the network device to cooperate in RLM, RRM, BFD and other related measurements. In this case, the network device can know whether the system needs to perform RLM, RRM, BFD and other related measurements in the "large core mode or high power / high power consumption mode" according to the UL-WUS.

[0215] In some embodiments, the UL-WUS can further indicate which measurement the terminal device needs the network device to cooperate in.

[0216] For example, the UL-WUS can include an indication information indicating that the terminal device needs the network device to cooperate in what kind of measurement; for another example, the time-frequency resource, sequence or other L1 feature (such as cyclic shift) of the UL-WUS corresponding to different types of measurement are different, so that the network device can know what kind of measurement the terminal device needs the network device to cooperate in according to the time-frequency resource, sequence or other L1 feature (such as cyclic shift) of the UL-WUS.

[0217] In some embodiments, the terminal device can indicate the time length for which the network device needs to maintain the "large core mode or high power / high power consumption mode" through the UL-WUS.

[0218] For example, the UL-WUS can include an indication information indicating that the network device needs to maintain the "large core mode or high power / high power consumption mode" for a time length; for another example, the time length can be divided into several levels, each corresponding to different UL-WUS time-frequency resources, sequences or other L1 features (such as cyclic shift), so that the network device can know the time length for which the network device needs to maintain the "large core mode or high power / high power consumption mode" according to the time-frequency resource, sequence or other L1 feature (such as cyclic shift) of the UL-WUS.

[0219] According to the method of the present embodiment, the system can be triggered into the "large core mode or high power / high power consumption mode" using the UL-WUS, and the network device can be triggered to perform one or more operations in a1) to a6) in the "large core mode or high power / high power consumption mode" using the UL-WUS. Since the terminal device and the network device can work in the "small core mode or low power / low power consumption mode" when the terminal device does not send the UL-WUS to the network device, the energy consumption of the terminal device and the network device is reduced. In some scenarios, the terminal device sends the UL-WUS once, so that the system can complete a series of operations in the "large core mode or high power / high power consumption mode", without the need to frequently send the UL-WUS to trigger the system to enter the "large core mode or high power / high power consumption mode" and perform corresponding operations, thereby improving the wake-up speed of the terminal device and improving the reliability of performing the series of operations.

[0220] In addition, the present embodiment can also design the UL-WUS differently according to different scenarios and needs. For example, the terminal device can use different time-frequency resources, sequences and other L1 features to send the UL-WUS according to different scenarios and needs, so that the network device can identify and respond to the needs of the terminal device more quickly.

[0221] Optionally, the implementation process shown in FIG. 3 can further include S304.

[0222] S304, the terminal device sends first information to the network device.

[0223] In this step, the terminal device can send first information to the network device in the "large core mode or high power / high power consumption mode", and the first information can be used to instruct the network device to exit the "large core mode or high power / high power consumption mode". In this way, the system can return to the "small core mode or low power / low power consumption mode" uniformly.

[0224] In some embodiments, the first information can further include second information, and the second information can be used to indicate the time when the network device next enters the "large core mode or high power / high power consumption mode".

[0225] S305, the terminal device and the network device work in the "small core mode or low power / low power consumption mode".

[0226] In some embodiments, the terminal device and the network device can automatically exit the "large core mode or high power / high power consumption mode" and work in the "small core mode or low power / low power consumption mode".

[0227] An example is that when the network device completes the above-mentioned channel behavior indicated by the terminal device, or in other words, when the network device completes the requirement of the terminal device, the network device can exit the "large core mode or high power / high power consumption mode" and work in the "small core mode or low power / low power consumption mode". For example, if the requirement of the terminal device is c1) mentioned above, the network device can automatically exit the "large core mode or high power / high power consumption mode" after sending SSB and / or SIB to the terminal device. Correspondingly, the terminal device can automatically exit the "large core mode or high power / high power consumption mode" after receiving SSB and / or SIB from the network device.

[0228] Another example is that if the terminal device indicates the time (denoted as the first time length) when the network device needs to maintain the "large core mode or high power / high power consumption mode" through UL-WUS, then the terminal device and the network device can automatically exit the "large core mode or high power / high power consumption mode" and work in the "small core mode or low power / low power consumption mode" when the time length of maintaining the "large core mode or high power / high power consumption mode" reaches the first time length.

[0229] Still another example is that the terminal device and the network device exit the "large core mode or high power / high power consumption mode" under the condition that both the above-mentioned channel behavior indicated by the terminal device is completed (that is, the requirement of the terminal device is completed) and the time length of maintaining the "large core mode or high power / high power consumption mode" reaches the first time length.

[0230] In some embodiments, the network device can exit the "large core mode or high power / high power consumption mode" according to the indication of the first information described above, and work in the "small core mode or low power / low power consumption mode". For example, the network device can exit the "large core mode or high power / high power consumption mode" after receiving the first information. Correspondingly, the terminal device can exit the "large core mode or high power / high power consumption mode" after sending the first information.

[0231] Scheme II

[0232] In Scheme II, the system can be triggered to enter the "large core mode or high power / high power consumption mode" by downlink signaling. For example, the terminal device can be triggered to switch from the low power consumption mode to the high power consumption mode using the DL-WUS, so as to receive the downlink data of the network device, and / or send the uplink data to the network device.

[0233] Exemplarily, the scenarios applicable to Scheme II can include but are not limited to one or more of the following d1) to d3):

[0234] d1) The terminal device needs to receive the paging message and / or the RACH configuration information, so as to receive the downlink data and / or send the uplink data.

[0235] Wherein, the initial state of the terminal device can be the IDLE state, if the terminal device needs to perform the uplink data transmission not based on the SDT and / or perform the downlink data reception, the terminal device can be switched to the CONNECTED state; if the terminal device needs to perform the uplink data transmission based on the SDT, the terminal device can not need to enter the CONNECTED state.

[0236] d2) The terminal device needs to receive the paging message and / or the RACH configuration information, so as to receive the downlink data and / or send the uplink data.

[0237] Wherein, the initial state of the terminal device can be the INACTIVE state, if the terminal device needs to perform the uplink data transmission not based on the SDT and / or perform the downlink data reception, the terminal device can be switched to the CONNECTED state; if the terminal device needs to perform the uplink data transmission based on the SDT, the terminal device can not need to enter the CONNECTED state.

[0238] d3) The terminal device needs to receive the downlink data.

[0239] Wherein, the initial state of the terminal device can be the CONNECTED state, and the terminal device can perform the reception of the downlink data in the CONNECTED state. In some scenarios, the terminal device can also perform the uplink data transmission not based on the SDT in the CONNECTED state, and can be switched to the corresponding state to perform the uplink data transmission based on the SDT.

[0240] In some embodiments, the DL-WUS can also indicate whether the system needs to perform measurements in a "big core mode or high power / high power consumption mode". Wherein, the measurements can include one or more of RLM, RRM, BFD, and other related measurements.

[0241] FIG. 4 shows a possible implementation flowchart of scheme two. As shown in FIG. 4, the implementation flowchart can include the following steps:

[0242] S401, the terminal device and the network device work in a "small core mode or low power / low power consumption mode".

[0243] S402, the network device sends a DL-WUS to the terminal device.

[0244] In this step, the network device can send a DL-WUS to the terminal device, which is used to indicate the terminal device to enter a "big core mode or high power / high power consumption mode".

[0245] In some embodiments, the terminal device can periodically listen to the DL-WUS from the network device in the "small core mode or low power / low power consumption mode", wherein the time-frequency location and format (such as sequence, and / or other L1 features (such as cyclic shift)) of the DL-WUS can be configured by the network device.

[0246] In some embodiments, the time-frequency location and format of the DL-WUS can be sent to the terminal device through a system message, or can be sent to the terminal device when the terminal device enters the RRC_CONNECTED state for the first time (for example, sent to the terminal device through the RRCRelease message).

[0247] S403, the terminal device and the network device enter a "big core mode or high power / high power consumption mode".

[0248] After the network device sends the DL-WUS to the terminal device, it can enter a "big core mode or high power / high power consumption mode". Accordingly, after the terminal device receives the DL-WUS, it can enter a "big core mode or high power / high power consumption mode".

[0249] In some embodiments, after the network device sends the DL-WUS, it can immediately enter a "big core mode or high power / high power consumption mode", or it can enter a "big core mode or high power / high power consumption mode" after a time interval, which is not limited by the embodiments of the present application. Accordingly, after the terminal device receives the DL-WUS, it can immediately enter a "big core mode or high power / high power consumption mode", or it can enter a "big core mode or high power / high power consumption mode" after a time interval, which is not limited by the embodiments of the present application.

[0250] In some embodiments, the terminal device and the network device can enter the "big core mode or high power / high power consumption mode" at the same time or at different times, and the embodiments of the present application do not limit this.

[0251] In some embodiments, the network device can determine whether to send the DL-WUS to the terminal device according to the state and needs of the terminal device.

[0252] In some embodiments, if the terminal device is in the IDLE state and the network device has downlink data to be sent to the terminal device, the network device can send the DL-WUS containing the third information and / or the fourth information to the terminal device.

[0253] For example, the third information can be paging-related information, used to instruct the terminal device to receive the paging message in the "big core mode or high power / high power consumption mode", so that the terminal device performs the reception of the paging message after switching to the "big core mode or high power / high power consumption mode".

[0254] For example, the fourth information can be RACH configuration information, so that the terminal device performs the sending of the random access request or RACH based on the RACH configuration information after switching to the "big core mode or high power / high power consumption mode".

[0255] In some embodiments, if the terminal device is in the INACTIVE state and the network device has downlink data to be sent to the terminal device, the network device can send the DL-WUS containing the third information (for example, paging-related information) and / or the fourth information (for example, RACH configuration information) to the terminal device, so that the terminal device performs the reception of the paging message and / or the sending of the random access request (or RACH) after switching to the "big core mode or high power / high power consumption mode".

[0256] In some embodiments, if the terminal device is in the CONNECTED state and the network device has downlink data to be sent to the terminal device, the network device can send the DL-WUS containing the fifth information to the terminal device.

[0257] For example, the fifth information can be downlink data-related information, used to instruct the terminal device to receive the downlink data in the "big core mode or high power / high power consumption mode". Thus, the terminal device can receive the downlink data after switching to the "big core mode or high power / high power consumption mode". In some scenarios, the terminal device can also send uplink data after switching to the "big core mode or high power / high power consumption mode".

[0258] In some embodiments, the network device can indicate the duration for which the terminal device needs to maintain the "big core mode or high power / high power consumption mode" through the DL-WUS.

[0259] For example, the DL-WUS can include an indication information indicating the time duration for which the terminal device needs to maintain the "big core mode or high power / high power consumption mode"; for another example, the time duration can be divided into several levels, each corresponding to a different time-frequency resource, sequence or other L1 feature (e.g., cyclic shift) of the DL-WUS, so that the terminal device can learn the time duration for which the terminal device needs to maintain the "big core mode or high power / high power consumption mode" according to the time-frequency resource, sequence or other L1 feature (e.g., cyclic shift) of the DL-WUS.

[0260] In some embodiments, after receiving the DL-WUS from the network device, the terminal device can parse the content of the DL-WUS and perform corresponding operations according to the content of the DL-WUS.

[0261] For example, if the terminal device receives the DL-WUS including the third information and / or the fourth information, the terminal device can perform the paging and / or the random access procedure after entering the "big core mode or high power / high power consumption mode" to establish a connection and receive downlink data. It should be noted that only the terminal device that is paged needs to enter the random access procedure, and the terminal device that is not paged does not need to enter the random access procedure.

[0262] For another example, if the terminal device receives the DL-WUS including the fifth information, the terminal device can receive the downlink data from the network device after entering the "big core mode or high power / high power consumption mode". In some scenarios, the terminal device can also send uplink data after entering the "big core mode or high power / high power consumption mode".

[0263] In some embodiments, the DL-WUS can also indicate whether the system needs to perform measurements in the "big core mode or high power / high power consumption mode". The measurements can include one or more of the related measurements such as RLM, RRM, BFD, etc.

[0264] In some embodiments, the DL-WUS can further indicate what kind of measurements need to be performed.

[0265] For example, the DL-WUS can include an indication information indicating what kind of measurements need to be performed; for another example, the time-frequency resource, sequence or other L1 feature (e.g., cyclic shift) of the DL-WUS corresponding to different types of measurements are different, so that the terminal device can learn what kind of measurements need to be performed according to the time-frequency resource, sequence or other L1 feature (e.g., cyclic shift) of the DL-WUS. In this way, after entering the "big core mode or high power / high power consumption mode", the terminal device can perform one or more measurements indicated by the DL-WUS.

[0266] According to the method of the embodiment, the terminal device can be triggered to switch from the "small core mode or low power / low power consumption mode" to the "large core mode or high power / high power consumption mode" using the DL-WUS, so as to receive downlink data from the network device and / or send uplink data to the network device. Since the terminal device and the network device can work in the "small core mode or low power / low power consumption mode" in the case where the network device does not send the DL-WUS to the terminal device, the energy consumption of the terminal device and the network device is reduced. In some scenarios, the network device sends the DL-WUS once, so that the system can complete a series of operations in the "large core mode or high power / high power consumption mode", without the need to frequently send the DL-WUS to trigger the system to enter the "large core mode or high power / high power consumption mode" and perform corresponding operations, thereby improving the wake-up speed of the terminal device and improving the reliability of performing the series of operations.

[0267] In addition, the embodiment can also design the DL-WUS differently according to different scenarios and requirements. For example, the network device can use different time-frequency resources, sequences and other L1 features to send the DL-WUS according to different scenarios and requirements, so that the terminal device can identify and respond to the requirements of the network device more quickly.

[0268] Optionally, the implementation process shown in FIG. 4 can further include S404.

[0269] S404, the network device sends first information to the terminal device.

[0270] In this step, the network device can send the first information to the terminal device in the "large core mode or high power / high power consumption mode", and the first information can be used to instruct the terminal device to exit the "large core mode or high power / high power consumption mode". In this way, the system can return to the "small core mode or low power / low power consumption mode" uniformly.

[0271] In some embodiments, the first information can further include second information, and the second information can be used to indicate the time when the terminal device enters the "large core mode or high power / high power consumption mode" next time.

[0272] S405, the terminal device and the network device work in the "small core mode or low power / low power consumption mode".

[0273] In some embodiments, the terminal device and the network device can automatically exit the "large core mode or high power / high power consumption mode" and work in the "small core mode or low power / low power consumption mode".

[0274] An example, when the terminal device completes the above channel behavior indicated by the network device, it can exit the "large core mode or high power / high power consumption mode" and work in the "small core mode or low power / low power consumption mode". For example, if the third information and the fourth information are contained in the DL-WUS sent by the network device, the terminal device can automatically exit the "large core mode or high power / high power consumption mode" after performing the reception of the paging message and the transmission of the random access request (or RACH). Correspondingly, the network device can automatically exit the "large core mode or high power / high power consumption mode" after performing the transmission of the paging message and the reception of the random access request (or RACH).

[0275] Another example, if the network device indicates the time length (denoted as the first time length) that the terminal device needs to maintain the "large core mode or high power / high power consumption mode" through the DL-WUS, then the terminal device and the network device can automatically exit the "large core mode or high power / high power consumption mode" and work in the "small core mode or low power / low power consumption mode" when the time length of maintaining the "large core mode or high power / high power consumption mode" reaches the first time length.

[0276] Still another example, the conditions for the terminal device and the network device to exit the "large core mode or high power / high power consumption mode" need to be met at the same time: completing the above channel behavior indicated by the network device, and the time length of maintaining the "large core mode or high power / high power consumption mode" reaching the first time length.

[0277] In some embodiments, the terminal device can exit the "large core mode or high power / high power consumption mode" and work in the "small core mode or low power / low power consumption mode" according to the indication of the above first information. For example, the terminal device can exit the "large core mode or high power / high power consumption mode" after receiving the first information. Correspondingly, the network device can exit the "large core mode or high power / high power consumption mode" after sending the first information.

[0278] The preferred embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the specific details of the above-described embodiments. Within the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application, and these simple modifications all belong to the protection scope of the present application. For example, in the above-described specific embodiments, various specific technical features described in the embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present application. For another example, various different embodiments of the present application can also be combined in any manner, as long as it does not deviate from the idea of the present application, and it should also be considered as disclosed in the present application. For another example, under the premise of no conflict, each embodiment described in the present application and / or technical features in each embodiment can be combined with any prior art, and the technical solutions obtained after combination should also fall within the protection scope of the present application.

[0279] It should also be understood that, in various method embodiments of the present application, the size of the sequence number of the above-described processes does not mean the order of execution, and the execution order of the processes should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. In addition, in the embodiments of the present application, the terms "downlink", "uplink" and "sidelink" are used to represent the transmission direction of signals or data, wherein "downlink" is used to represent the transmission direction of signals or data as the first direction from the station to the user equipment of the cell, "uplink" is used to represent the transmission direction of signals or data as the second direction from the user equipment of the cell to the station, and "sidelink" is used to represent the transmission direction of signals or data as the third direction from the user equipment 1 to the user equipment 2. For example, "downlink signal" represents that the transmission direction of the signal is the first direction. In addition, in the embodiments of the present application, the term "and / or" is only used to describe the association relationship of the associated objects, which means that there can be three relationships. Specifically, A and / or B can represent three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are in an "or" relationship.

[0280] Based on the foregoing embodiments, the embodiments of the present application provide corresponding communication devices.

[0281] FIG. 5 is a structural composition schematic diagram of a communication device provided by the embodiments of the present application, which is applied to a first device, as shown in FIG. 5, the communication device 500 comprises:

[0282] The first communication unit 501 is configured to send a wake-up signal to a second device, the wake-up signal being used to instruct the second device to enter a first communication mode, and the wake-up signal being related to the second device exiting the first communication mode.

[0283] In some embodiments, the apparatus 500 is a terminal device, and the second device is a network device.

[0284] In some embodiments, the wake-up signal is further used to request the second device to perform a first operation in the first communication mode, the first operation comprising one or more of: receiving a synchronization signal block from the second device; receiving system information from the second device; receiving data from the second device; sending a random access request to the second device; sending a scheduling request to the second device; sending data to the second device; performing a first measurement.

[0285] In some embodiments, the receiving data from the second device comprises: receiving data from the second device through a physical downlink shared channel; and / or, the sending data to the second device comprises: sending data to the second device through a physical uplink shared channel.

[0286] In some embodiments, the sending data to the second device comprises: sending uplink data to the second device in a case that a small data transmission is adopted; or, sending uplink data to the second device in a case that the small data transmission is not adopted.

[0287] In some embodiments, the apparatus 500 is a network device, and the second device is a terminal device.

[0288] In some embodiments, the second device is in an idle state, an inactive state, or a connected state.

[0289] In some embodiments, the wake-up signal is further used to instruct the second device to perform a first operation in the first communication mode, the first operation comprising one or more of: receiving a paging message; sending a random access request; receiving data from the apparatus 500; performing a first measurement.

[0290] In some embodiments, the first measurement is related to one or more of: a radio link monitoring; a radio resource management measurement; a beam failure detection.

[0291] In some embodiments, the condition for the second device to exit the first communication mode comprises: the first operation has been completed.

[0292] In some embodiments, the condition for the second device to exit the first communication mode comprises: a timing duration of a timer reaches a first duration, the first duration being indicated by the wake-up signal.

[0293] In some embodiments, the first duration is pre-configured.

[0294] In some embodiments, the timer starts timing from a first time point; wherein the first time point is a time point at which the second device receives the wake-up signal; or the first time point is a time point at which the second device transmits or receives information in the process of maintaining the first communication mode.

[0295] In some embodiments, the configuration for transmitting the wake-up signal comprises one or more of the following: time-frequency resources occupied by the wake-up signal; a sequence used by the wake-up signal; layer 1 features of the wake-up signal.

[0296] In some embodiments, the different first operations correspond to different first configurations, and the first configuration is a configuration for transmitting the wake-up signal.

[0297] In some embodiments, the first communication unit 501 is further configured to: transmit first information to the second device, the first information being used to instruct the second device to exit the first communication mode.

[0298] In some embodiments, the first information comprises second information, and the second information is used to indicate a time at which the second device next enters the first communication mode.

[0299] In some embodiments, the first communication mode is a large core mode, a high power mode, or a high power consumption mode.

[0300] In some embodiments, the second device exiting the first communication mode comprises: the second device exiting the first communication mode and working in a second communication mode; and the second communication mode is a small core mode, a low power mode, or a low power consumption mode.

[0301] FIG. 6 is a schematic diagram of a structure of a communication apparatus according to an embodiment of the present application, which is applied to a second device, as shown in FIG. 6, the communication apparatus 600 comprises:

[0302] A second communication unit 601 is configured to receive a wake-up signal from a first device, the wake-up signal being used to instruct the apparatus to enter a first communication mode, and the wake-up signal being related to the apparatus exiting the first communication mode.

[0303] In some embodiments, the first device is a terminal device, and the apparatus 600 is a network device.

[0304] In some embodiments, the wake-up signal is further used to request performing a first operation in the first communication mode, the first operation comprising one or more of: receiving a synchronization signal block from the apparatus 600; receiving system information from the apparatus 600; receiving data from the apparatus 600; sending a random access request to the apparatus 600; sending a scheduling request to the apparatus 600; sending data to the apparatus 600; performing a first measurement.

[0305] In some embodiments, the receiving data from the apparatus 600 comprises: receiving data from the apparatus 600 through a physical downlink shared channel; and / or, the sending data to the apparatus 600 comprises: sending data to the apparatus 600 through a physical uplink shared channel.

[0306] In some embodiments, the sending data to the apparatus 600 comprises: sending uplink data to the apparatus 600 in a case that a small data transmission is adopted; or, sending uplink data to the apparatus 600 in a case that the small data transmission is not adopted.

[0307] In some embodiments, the first device is a network device, and the apparatus 600 is a terminal device.

[0308] In some embodiments, the apparatus 600 is in an idle state, an inactive state or a connected state.

[0309] In some embodiments, the wake-up signal is further used to instruct the apparatus 600 to perform a first operation in the first communication mode, the first operation comprising one or more of: receiving a paging message; sending a random access request; receiving data from the first device; performing a first measurement.

[0310] In some embodiments, the first measurement is related to one or more of: a radio link monitoring; a radio resource management measurement; a beam failure detection.

[0311] In some embodiments, a condition for the apparatus 600 to exit the first communication mode comprises: the first operation has been completed.

[0312] In some embodiments, a condition for the apparatus 600 to exit the first communication mode comprises: a timing duration of a timer reaches a first duration, the first duration being indicated by the wake-up signal.

[0313] In some embodiments, the first duration is pre-configured.

[0314] In some embodiments, the timer starts timing from a first time point; wherein, the first time point is a time point at which the apparatus 600 receives the wake-up signal; or, the first time point is a time point at which the apparatus 600 sends or receives information in a process of maintaining the first communication mode.

[0315] In some embodiments, the configuration for transmitting the wake-up signal comprises one or more of: time-frequency resources occupied by the wake-up signal; a sequence used by the wake-up signal; layer 1 features of the wake-up signal.

[0316] In some embodiments, the first configuration corresponding to the different first operation is different, and the first configuration is a configuration for transmitting the wake-up signal.

[0317] In some embodiments, the second communication unit 601 is further configured to: receive first information from the first device, the first information being used to instruct the apparatus 600 to exit the first communication mode.

[0318] In some embodiments, the first information comprises second information, and the second information is used to indicate a time for the apparatus 600 to enter the first communication mode next time.

[0319] In some embodiments, the first communication mode is a large core mode, a high power mode, or a high power consumption mode.

[0320] In some embodiments, the apparatus 600 exiting the first communication mode comprises: the apparatus 600 exiting the first communication mode and working in a second communication mode; and the second communication mode is a small core mode, a low power mode, or a low power consumption mode.

[0321] Those skilled in the art should understand that the above description of the communication apparatus of the embodiments of the present application can be understood with reference to the description of the communication method of the embodiments of the present application.

[0322] FIG. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device can be a first device or a second device. The communication device 700 shown in FIG. 7 comprises a processor 710, which can call and run a computer program from a memory to implement the method according to an embodiment of the present application.

[0323] Optionally, as shown in FIG. 7, the communication device 700 can further comprise a memory 720. The processor 710 can call and run a computer program from the memory 720 to implement the method according to an embodiment of the present application.

[0324] The memory 720 can be a separate device independent of the processor 710, or can be integrated in the processor 710.

[0325] Optionally, as shown in FIG. 7, the communication device 700 can further comprise a transceiver 730, and the processor 710 can control the transceiver 730 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0326] The transceiver 730 can include a transmitter and a receiver. The transceiver 730 can further include an antenna, and the number of the antenna can be one or more.

[0327] Optionally, the communication device 700 can be specifically a first device of the embodiments of the present application, and the communication device 700 can implement the corresponding procedures in the methods of the embodiments of the present application which are implemented by the first device. For the sake of brevity, details are not described herein.

[0328] Optionally, the communication device 700 can be specifically a second device of the embodiments of the present application, and the communication device 700 can implement the corresponding procedures in the methods of the embodiments of the present application which are implemented by the second device. For the sake of brevity, details are not described herein.

[0329] FIG. 8 is a schematic structural diagram of a chip according to the embodiments of the present application. The chip 800 shown in FIG. 8 includes a processor 810, which can call and run a computer program from a memory to implement the methods in the embodiments of the present application.

[0330] Optionally, as shown in FIG. 8, the chip 800 can further include a memory 820. The processor 810 can call and run a computer program from the memory 820 to implement the methods in the embodiments of the present application.

[0331] The memory 820 can be a separate device independent of the processor 810, or can be integrated in the processor 810.

[0332] Optionally, the chip 800 can further include an input interface 830. The processor 810 can control the input interface 830 to communicate with other devices or chips, and specifically, information or data sent by other devices or chips can be acquired.

[0333] Optionally, the chip 800 can further include an output interface 840. The processor 810 can control the output interface 840 to communicate with other devices or chips, and specifically, information or data can be output to other devices or chips.

[0334] Optionally, the chip can be applied to the first device in the embodiments of the present application, and the chip can implement the corresponding procedures in the methods of the embodiments of the present application which are implemented by the first device. For the sake of brevity, details are not described herein.

[0335] Optionally, the chip can be applied to the second device in the embodiments of the present application, and the chip can implement the corresponding procedures in the methods of the embodiments of the present application which are implemented by the second device. For the sake of brevity, details are not described herein.

[0336] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0337] The embodiments of the present application further provide a computer storage medium, which stores one or more programs, and the one or more programs can be executed by one or more processors to implement the method in the embodiments of the present application.

[0338] FIG. 9 is a schematic block diagram of a communication system provided by the embodiments of the present application. As shown in FIG. 9, the communication system 900 includes a first device 910 and a second device 920.

[0339] The first device 910 can be used to implement the corresponding functions of the first device in the above method, and the second device 920 can be used to implement the corresponding functions of the second device in the above method. For brevity, details are not repeated here.

[0340] It should be understood that the processor of the embodiments of the present application can be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method embodiments can be completed by integrated logic circuits or instructions in the form of software in the processor. The processor mentioned above can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The disclosed methods, steps and logic block diagrams in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as a hardware code processor for execution, or a combination of hardware and software modules in the code processor for execution. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and combines the hardware to complete the steps of the above method.

[0341] It is to be understood that the memory in the embodiments of the present application can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memory. Among them, the nonvolatile memory can be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or a flash memory. The volatile memory can be a random access memory (Random Access Memory, RAM) used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the system and method described herein is intended to include, but not limited to, these and any other suitable types of memory.

[0342] It should be understood that the above-mentioned memory is exemplary but not limiting, for example, the memory in the embodiments of the present application can also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and the like. That is, the memory in the embodiments of the present application is intended to include, but not limited to, these and any other suitable types of memory.

[0343] The embodiment of the present application further provides a computer readable storage medium for storing the computer program.

[0344] Optionally, the computer readable storage medium can be applied to the first device in the embodiment of the present application, and the computer program makes the computer execute the corresponding process realized by the first device in the various methods of the embodiment of the present application. For the sake of brevity, details are not described herein.

[0345] Optionally, the computer readable storage medium can be applied to the second device in the embodiment of the present application, and the computer program makes the computer execute the corresponding process realized by the second device in the various methods of the embodiment of the present application. For the sake of brevity, details are not described herein.

[0346] The embodiment of the present application further provides a computer program product comprising computer program instructions.

[0347] Optionally, the computer program product can be applied to the first device in the embodiment of the present application, and the computer program instructions make the computer execute the corresponding process realized by the first device in the various methods of the embodiment of the present application. For the sake of brevity, details are not described herein.

[0348] Optionally, the computer program product can be applied to the second device in the embodiment of the present application, and the computer program instructions make the computer execute the corresponding process realized by the second device in the various methods of the embodiment of the present application. For the sake of brevity, details are not described herein.

[0349] The embodiment of the present application further provides a computer program.

[0350] Optionally, the computer program can be applied to the first device in the embodiment of the present application, and when the computer program runs on the computer, makes the computer execute the corresponding process realized by the first device in the various methods of the embodiment of the present application. For the sake of brevity, details are not described herein.

[0351] Optionally, the computer program can be applied to the second device in the embodiment of the present application, and when the computer program runs on the computer, makes the computer execute the corresponding process realized by the second device in the various methods of the embodiment of the present application. For the sake of brevity, details are not described herein.

[0352] Those skilled in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized in electronic hardware or in combination of computer software and electronic hardware. Whether the functions are realized in hardware or software mode depends on the specific application and design constraints of the technical solutions. The skilled person can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0353] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0354] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0355] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0356] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0357] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0358] 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 method for a first device, the method comprising: transmitting a wake-up signal to a second device, the wake-up signal indicating the second device to enter a first communication mode, and the wake-up signal being associated with the second device exiting the first communication mode. 2.The method of claim 1, wherein: the first device is a terminal device, and the second device is a network device. 3.The method of claim 2, wherein: the wake-up signal further indicates the second device to perform a first operation in the first communication mode, the first operation comprising one or more of: receiving a synchronization signal block from the second device; receiving system information from the second device; receiving data from the second device; transmitting a random access request to the second device; transmitting a scheduling request to the second device; transmitting data to the second device; and performing a first measurement. 4.The method of claim 3, wherein: the receiving data from the second device comprises receiving data from the second device via a physical downlink shared channel; and / or the transmitting data to the second device comprises transmitting data to the second device via a physical uplink shared channel. 5.The method of claim 3 or 4, wherein: the transmitting data to the second device comprises: transmitting uplink data to the second device in a case that a small data transmission is adopted; or transmitting uplink data to the second device in a case that the small data transmission is not adopted. 6.The method of claim 1, wherein: the first device is a network device, and the second device is a terminal device. 7.The method of claim 6, wherein: the second device is in an idle state, an inactive state, or a connected state. 8.The method of claim 6 or 7, wherein: the wake-up signal further indicates the second device to perform a first operation in the first communication mode, the first operation comprising one or more of: receiving a paging message; transmitting a random access request; receiving data from the first device; and performing a first measurement. 9.The method of any one of claims 3 to 5, 8, wherein: the first measurement is associated with one or more of: a radio link monitoring; a radio resource management measurement; and a beam failure detection. 10.The method of any one of claims 3 to 5, 8, 9, wherein: a condition for the second device to exit the first communication mode comprises that the first operation has been completed. 11.The method of any one of claims 1 to 10, wherein: a condition for the second device to exit the first communication mode comprises: a timer reaches a first duration, the first duration being indicated by the wake-up signal. 12.The method of claim 11, wherein: the first duration is pre-configured. 13.The method of claim 11 or 12, wherein: the timer starts counting from a first time point; and / or the first time point is a time point when the second device receives the wake-up signal. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The first moment is a moment when the second device transmits or receives information in maintaining the first communication mode.

14. The method of any one of claims 1-13, wherein, The configuration for transmitting the wake-up signal comprises one or more of: time-frequency resources occupied by the wake-up signal; a sequence used by the wake-up signal; a layer 1 feature of the wake-up signal.

15. The method of any one of claims 3-5, 8-10, wherein, The different first configurations correspond to different first operations, and the first configurations are configurations for transmitting the wake-up signal.

16. The method of any one of claims 1 to 15, wherein, The method further comprises: sending first information to the second device, the first information being used to instruct the second device to exit the first communication mode.

17. The method of claim 16, wherein, The first information comprises second information, the second information being used to indicate a time when the second device next enters the first communication mode.

18. The method of any one of claims 1-17, wherein, The first communication mode is a big core mode, a high power mode, or a high power consumption mode.

19. The method of any one of claims 1-18, wherein, The second device exiting the first communication mode comprises the second device exiting the first communication mode and operating in a second communication mode; The second communication mode is a small core mode, a low power mode, or a low power consumption mode.

20. A communication method applied to a second device, the method comprising: receiving a wake-up signal from a first device, the wake-up signal being used to instruct the second device to enter a first communication mode, and the wake-up signal being related to the second device exiting the first communication mode.

21. The method of claim 20, wherein, The first device is a terminal device, and the second device is a network device.

22. The method of claim 21, wherein, The wake-up signal is further used to request a first operation to be performed in the first communication mode, the first operation comprising one or more of: receiving a synchronization signal block from the second device; receiving system information from the second device; receiving data from the second device; sending a random access request to the second device; sending a scheduling request to the second device; sending data to the second device; performing a first measurement.

23. The method of claim 22, wherein, The receiving data from the second device comprises receiving data from the second device through a physical downlink shared channel; and / or, The sending data to the second device comprises sending data to the second device through a physical uplink shared channel.

24. The method of claim 22 or 23, wherein, The sending data to the second device comprises: in a case where a small data transmission mode is adopted, sending uplink data to the second device; or in a case where the small data transmission mode is not adopted, sending uplink data to the second device.

25. The method of claim 20, wherein, The first device is a network device, and the second device is a terminal device.

26. The method of claim 25, wherein, The second device is in an idle state, an inactive state, or a connected state.

27. The method of claim 25 or 26, wherein, The wake-up signal is further used to instruct the second device to perform a first operation in the first communication mode, the first operation comprising one or more of: receiving a paging message; sending a random access request; receiving data from the first device; performing a first measurement.

28. The method of any one of claims 22-24, 27, wherein, The first measurement relates to one or more of: radio link monitoring; radio resource management measurement; beam failure detection.

29. The method of any one of claims 22-24, 27, 28, wherein, The condition for the second device to exit the first communication mode comprises that the first operation has been completed.

30. The method of any one of claims 20-29, wherein, The condition for the second device to exit the first communication mode comprises: a timing duration of a timer reaches a first duration, the first duration being indicated by the wake-up signal.

31. The method of claim 30, wherein, The first duration is pre-configured.

32. The method of claim 30 or 31, wherein, The timer starts timing from a first time instance; and The first time instance is when the second device receives the wake-up signal; or The first time instance is when the second device sends or receives information in the process of maintaining the first communication mode.

33. The method of any one of claims 20-32, wherein, The configuration for transmitting the wake-up signal comprises one or more of: time-frequency resources occupied by the wake-up signal; a sequence used by the wake-up signal; layer 1 features of the wake-up signal.

34. The method of any one of claims 22-24, 27-29, wherein, Different first configurations corresponding to different first operations are different, the first configuration being a configuration for transmitting the wake-up signal.

35. The method of any one of claims 20 to 34, wherein, The method further comprises: receiving first information from the first device, the first information being used to instruct the second device to exit the first communication mode.

36. The method of claim 35, wherein, The first information comprises second information, the second information being used to indicate a time for the second device to next enter the first communication mode.

37. The method of any one of claims 20-36, wherein, The first communication mode is a large core mode, a high power mode, or a high power consumption mode.

38. The method of any one of claims 20-37, wherein, The second device exiting the first communication mode comprises the second device exiting the first communication mode and operating in a second communication mode; The second communication mode is a small core mode, a low power mode, or a low power consumption mode.

39. A communication apparatus, the apparatus comprising: The first communication unit is configured to send a wake-up signal to the second device, the wake-up signal being used to instruct the second device to enter a first communication mode, and the wake-up signal being associated with the second device exiting the first communication mode.

40. A communication apparatus, the apparatus comprising: The second communication unit is configured to receive a wake-up signal from the first device, the wake-up signal being used to instruct the apparatus to enter a first communication mode, and the wake-up signal being associated with the apparatus exiting the first communication mode.

41. A communication device, the communication device comprising: a memory for storing a computer program; a processor connected to the memory, for invoking and running the computer program from the memory, to implement the method of any one of claims 1 to 19, or the method of any one of claims 20 to 38; a transceiver for receiving and sending information in the process of transceiving information with other devices.

42. A chip, the chip comprising: a processor for invoking and running a computer program from a memory, to cause a device in which the chip is installed to perform the method of any one of claims 1 to 19, or the method of any one of claims 20 to 38; a transceiver for receiving and sending information in the process of transceiving information with devices or chips.

43. A computer readable storage medium for storing a computer program, the computer program causing a computer to perform the method of any one of claims 1 to 19, or the method of any one of claims 20 to 38.

Images