WO2023071873A1

WO2023071873A1 - Wake-up signal receiving method, wake-up signal sending method, and related apparatuses

Info

Publication number: WO2023071873A1
Application number: PCT/CN2022/126058
Authority: WO
Inventors: 雷珍珠
Original assignee: 展讯半导体(南京)有限公司
Priority date: 2021-10-29
Filing date: 2022-10-19
Publication date: 2023-05-04
Also published as: CN116074929A

Abstract

Embodiments of the present application provide a wake-up signal receiving method, a wake-up signal sending method, and related apparatuses. The wake-up signal receiving method comprises: a terminal device determines a target cell, the target cell being determined according to an air interface propagation delay value corresponding to a cell of the terminal device for performing carrier aggregation, the air interface propagation delay value corresponding to the cell of the carrier aggregation being an air interface propagation delay value between a network device corresponding to the cell of the carrier aggregation and the terminal device; the terminal device receives a wake-up signal on the target cell, the wake-up signal being used for controlling whether the terminal device is activated in an activation period in the cell of the carrier aggregation. According to the method provided by the present application, a wake-up signal received by a terminal device can effectively adapt to a discontinuous reception (DRX) mechanism, so that the purpose of energy saving is achieved.

Description

Receiving method of wake-up signal, method of sending wake-up signal and related device

technical field

The embodiments of the present application relate to the field of communication technologies, and in particular to a method for receiving a wakeup signal, a method for sending a wakeup signal, and related devices.

Background technique

In non-terrestrial networks (NTN), due to the large difference in the distance between different satellites (including different satellites in the same orbit and different satellites in different orbits) and the terminal equipment, the terminal equipment receives different satellites. The delivered data has a large delay difference. Therefore, when carrying out carrier aggregation on cells corresponding to different satellites (which can also be understood as carriers), there is a large propagation delay difference between different cells (including the primary cell and the secondary cell), which can reach tens of milliseconds at most, or even Hundreds of milliseconds.

In the above carrier aggregation scenario, how to make the wake-up signal received by the terminal device effectively adapt to the discontinuous reception (DRX) mechanism, so as to achieve the purpose of energy saving is a problem that needs to be solved.

Contents of the invention

Embodiments of the present application provide a method for receiving a wake-up signal, a method for sending a wake-up signal, and related devices. Through some embodiments of the present application, the wake-up signal received by a terminal device can effectively adapt to the DRX mechanism, thereby achieving the purpose of energy saving.

In the first aspect, the embodiment of the present application provides a method for receiving a wake-up signal, the method including:

The terminal device determines the target cell. The target cell is determined according to the air interface propagation delay value corresponding to the cell where the terminal device performs carrier aggregation. The air interface propagation delay value corresponding to the carrier aggregation cell corresponds to the network device corresponding to the carrier aggregation cell. The air interface propagation delay value between the terminal equipment;

The terminal device receives a wake-up signal on the target cell, and the wake-up signal is used to control whether the terminal device is activated during the activation period in the carrier aggregation cell.

In this embodiment of the present application, the number of the target cell may be one. In this case, the terminal device receives a wake-up signal on one target cell, and the wake-up signal received by the terminal device on this one target cell is used to control the terminal device to Whether the carrier aggregation cell is activated during the activation period. The number of target cells can also be multiple. In this case, the terminal device can receive wake-up signals on multiple target cells, and each wake-up signal is used to control whether the terminal device is activation.

The terminal device can determine the target cell in various ways. Exemplarily, the terminal device may first determine one or more candidate cells according to the air interface propagation delay value corresponding to each cell, and indicate to the network device to determine; it may also indicate one or more candidate cells to the network device After receiving the feedback information from the network device to determine the cell, the terminal device can also directly indicate to the network device the air interface propagation delay value corresponding to each cell, and then the network device determines the target cell and instructs the terminal device to determine.

In the embodiment of this application, the terminal device first determines one or more target cells according to the air interface propagation delay value corresponding to the cell, and then receives the wake-up signal sent by the network device on the one or more target cells, so that the terminal device can After receiving the wake-up signal, the activation period of the cell indicated by the wake-up signal can be effectively controlled, that is, the wake-up signal received by the terminal device can be effectively adapted to the DRX mechanism, thereby achieving the purpose of energy saving.

In a possible implementation manner, before the terminal device determines the target cell, the method further includes:

The terminal device sends first indication information to the network device, where the first indication information is used to indicate one or more cells, and the one or more cells include the target cell; the one cell is the corresponding air interface in the carrier aggregation cell For the cell with the smallest propagation delay value, the plurality of cells are cells with relatively small air interface propagation delay values among the cells in the carrier aggregation.

In a possible implementation manner, the method also includes:

The terminal device receives second indication information sent by the network device, where the second indication information is used to confirm the first indication information; or,

The terminal device receives second indication information sent by the network device, where the second indication information is used to indicate the target cell, where the target cell is a cell in the plurality of cells.

In a possible implementation manner, the first indication information is also used to indicate the air interface propagation delay value corresponding to each cell in the plurality of cells; the target cell is the corresponding air interface propagation delay value in the plurality of cells The area with the smallest value.

The terminal device sends first indication information to the network device, where the first indication information is used to indicate the cell used to receive the wake-up signal in each of the M cell groups; wherein, the M cell groups are controlled by the carrier The aggregated cells are grouped to obtain that the absolute value of the difference between the air interface propagation delay values corresponding to any two cells in each of the M cell groups is less than or equal to the first threshold; the first threshold It is determined by the terminal device, or the first threshold is indicated by the network device, and the M is a number greater than or equal to 1.

In a possible implementation manner, the first indication information is also used to indicate other cells in each cell group.

In a possible implementation manner, the method also includes:

The terminal device receives second indication information sent by the network device, where the second indication information is used to indicate the target cell, and the target cell is determined according to the cell used to receive the wake-up signal in at least one cell group among the M cell groups ; The wake-up signal received on the target cell is used to control whether the terminal device is activated during the activation period in the cells of the first cell group, the first cell group includes the target cell, and the first cell group included in the at least one cell group.

In a possible implementation manner, the cell for receiving the wake-up signal is a cell corresponding to the smallest air interface propagation delay value in the cell group where the cell for receiving the wake-up signal is located.

The terminal device sends first indication information to the network device, where the first indication information is used to indicate the air interface propagation delay value corresponding to each cell of the carrier aggregation;

The terminal device receives the second indication information sent by the network device, where the second indication information is used to indicate the target cell, and the target cell is the cell corresponding to the minimum air interface propagation delay value among the cells of the carrier aggregation.

The terminal device receives second indication information sent by the network device, where the second indication information is used to indicate the target cell, where the target cell is a cell for receiving a wake-up signal in each of the N cell groups; The second indication information is also used to indicate other cells in each cell group; wherein, the N cell groups are obtained by grouping the carrier aggregated cells, and any cell group in each of the N cell groups The absolute value of the difference between the air interface propagation delay values corresponding to the two cells is less than or equal to a second threshold, the second threshold is determined by the network device, and the N is a number greater than or equal to 1; on the target cell The received wake-up signal is used to control whether the terminal device is activated during the activation period in the cells of the second cell group; the second cell group includes the target cell, and the second cell group is included in the N cell groups .

In a possible implementation manner, the target cell is a cell corresponding to the smallest air interface propagation delay value in the cell group where the target cell is located.

In a possible implementation manner, the terminal device determining the target cell includes:

The terminal device determines the target cell according to the first indication information or the second indication information.

In a second aspect, an embodiment of the present application provides a method for receiving a wake-up signal, the method including:

The terminal device determines the target secondary cell; the target secondary cell is determined by the air interface propagation delay value corresponding to the cell where the terminal device performs carrier aggregation, and the air interface propagation delay value corresponding to the cell is the difference between the network device corresponding to the cell and the terminal device The air interface propagation delay value between;

The terminal device receives a wake-up signal on the primary cell; the wake-up signal is used to control whether the terminal device is activated during the activation period in the target secondary cell and the primary cell.

In a possible implementation manner, before the terminal device determines the target secondary cell, the method further includes:

The terminal device sends first indication information to the network device, where the first indication information is used to indicate one or more secondary cells, and the one or more secondary cells include the target secondary cell.

In a possible implementation manner, the method also includes:

The terminal device receives second indication information sent by the network device, where the second indication information is used to indicate the target secondary cell, and the target secondary cell is determined according to the one or more secondary cells.

The terminal device receives second indication information sent by the network device, where the second indication information is used to indicate the target secondary cell.

In a possible implementation manner, the absolute value of the difference between the air interface propagation delay value corresponding to the target secondary cell and the air interface propagation delay value corresponding to the primary cell is less than or equal to a third threshold.

In a possible implementation manner, the air interface propagation delay value corresponding to the target secondary cell is greater than or equal to the air interface propagation delay value corresponding to the primary cell.

In a possible implementation manner, the absolute value of the difference between the air interface propagation delay value corresponding to the target secondary cell and the air interface propagation delay value corresponding to the primary cell is less than or equal to the third threshold, and the target The air interface propagation delay value corresponding to the secondary cell is greater than or equal to the air interface propagation delay value corresponding to the primary cell.

In a third aspect, the embodiment of the present application provides a method for sending a wake-up signal, the method including:

The network device determines the target cell. The target cell is determined according to the air interface propagation delay value corresponding to the cell where the terminal device performs carrier aggregation. The air interface propagation delay value corresponding to the carrier aggregation cell corresponds to the network device corresponding to the carrier aggregation cell. Air interface propagation delay value between terminal devices;

The network device sends a wake-up signal on the target cell, and the wake-up signal is used to control whether the terminal device is activated during the activation period in the carrier aggregation cell.

In a possible implementation manner, before the network device determines the target cell, the method further includes:

The network device receives the first indication information sent by the terminal device, the first indication information is used to indicate one or more cells, and the one or more cells include the target cell; the one cell is the corresponding cell in the carrier aggregation The cells with the smallest air interface propagation delay value, the plurality of cells are cells with relatively small air interface propagation delay values among the cells of the carrier aggregation.

In a possible implementation manner, the target cell is the one cell or one of the multiple cells;

Before the network device sends a wake-up signal on the target cell, the method also includes:

The network device sends second indication information to the terminal device, where the second indication information is used to confirm the first indication information; or,

The network device sends second indication information to the terminal device, where the second indication information is used to indicate the target cell.

The network device receives the first indication information sent by the terminal device, where the first indication information is used to indicate the cell used to receive the wake-up signal in each of the M cell groups; wherein, the M cell groups are controlled by the pair The carrier aggregation cells are grouped, and the absolute value of the difference between the air interface propagation delay values corresponding to any two cells in each of the M cell groups is less than or equal to the first threshold; A threshold is determined by the terminal device, or the first threshold is indicated by the network device, and the M is a number greater than or equal to 1.

In a possible implementation manner, the target cell is determined according to the cell used to receive the wake-up signal in at least one of the M cell groups; the wake-up signal received on the target cell is used to control the terminal device Whether the cells of the first cell group are activated during the activation period, the first cell group includes the target cell, and the first cell group is included in the at least one cell group.

In a possible implementation manner, before the network device sends a wake-up signal on the target cell, the method further includes:

The network device receives first indication information sent by the terminal device, where the first indication information is used to indicate an air interface propagation delay value corresponding to each cell of the carrier aggregation;

The target cell is the cell with the smallest corresponding air interface propagation delay value among the cells of the carrier aggregation;

The target cell is a cell used to receive the wake-up signal in each of the N cell groups, the N cell groups are obtained by grouping the carrier aggregated cells, and each of the N cell groups The absolute value of the difference between the air interface propagation delay values corresponding to any two cells in the cell is less than or equal to the second threshold value, the second threshold value is determined by the network device, and the N is a number greater than or equal to 1; in the The wake-up signal received on the target cell is used to control whether the terminal device is activated during the activation period in the cells of the second cell group; the second cell group includes the target cell, and the second cell group is included in the N in the community group;

The network device sends second indication information to the terminal device, where the second indication information is used to indicate the target cell and other cells in each cell group.

In a possible implementation manner, the network device determining the target cell includes:

The network device determines the target cell according to the first indication information.

In a fourth aspect, the embodiment of the present application provides a method for sending a wake-up signal, the method including:

The network device determines the target secondary cell; the target secondary cell is determined by the air interface propagation delay value corresponding to the carrier aggregation cell of the terminal device, and the air interface propagation delay value corresponding to the carrier aggregation cell is the network device corresponding to the carrier aggregation cell Air interface propagation delay value with the terminal equipment;

The network device sends a wake-up signal on the primary cell; the wake-up signal is used to control whether the terminal device is activated during the activation period in the target secondary cell and the primary cell.

In a possible implementation manner, before the network device determines the target secondary cell, the method further includes:

The network device receives first indication information sent by the terminal device, where the first indication information is used to indicate one or more secondary cells, and the one or more secondary cells include the target secondary cell.

In a possible implementation manner, the target secondary cell is determined according to the plurality of secondary cells;

Before the network device sends a wake-up signal on the primary cell, the method further includes:

The network device sends second indication information to the terminal device, where the second indication information is used to indicate the target secondary cell.

The terminal device determines the target cell according to the first indication information.

In a fifth aspect, the embodiment of the present application provides a terminal device, including:

A processing unit, configured to determine a target cell, the target cell is determined according to the air interface propagation delay value corresponding to the cell where the carrier aggregation is performed by the terminal device, and the air interface propagation delay value corresponding to the carrier aggregation cell is The air interface propagation delay value between the network device and the terminal device;

The communication unit is configured to receive a wake-up signal on the target cell, and the wake-up signal is used to control whether the terminal device is activated during the activation period in the carrier aggregation cell.

In a sixth aspect, the embodiment of the present application provides a terminal device, including:

A processing unit, configured to determine a target secondary cell; the target secondary cell is determined by the air interface propagation delay value corresponding to the cell where the carrier aggregation is performed by the terminal device, and the air interface propagation delay value corresponding to the carrier aggregation cell is the carrier aggregation cell The air interface propagation delay value between the corresponding network device and the terminal device;

The communication unit is configured to receive a wake-up signal on the primary cell, and the wake-up signal is used to control whether the terminal device is activated during the activation period in the target secondary cell and the primary cell.

In a seventh aspect, the embodiment of the present application provides a network device, including:

The processing unit is configured to determine the target cell, the target cell is determined according to the air interface propagation delay value corresponding to the cell where the terminal device performs carrier aggregation, the air interface propagation delay value corresponding to the carrier aggregation cell is the network corresponding to the carrier aggregation cell Air interface propagation delay value between the device and the terminal device;

A communication unit, configured to send a wake-up signal on the target cell, where the wake-up signal is used to control whether the terminal device is activated during the activation period in the carrier aggregation cell.

In an eighth aspect, the embodiment of the present application provides a network device, including:

A processing unit, configured to determine a target secondary cell; the target secondary cell is determined by the air interface propagation delay value corresponding to the cell where the carrier aggregation is performed by the terminal device, and the air interface propagation delay value corresponding to the carrier aggregation cell corresponds to the carrier aggregation cell The air interface propagation delay value between the network device and the terminal device;

The communication unit is configured to send a wake-up signal on the primary cell; the wake-up signal is used to control whether the terminal device is activated during the activation period in the target secondary cell and the primary cell.

In a ninth aspect, the embodiment of the present application provides a terminal device, including: a processor and a transceiver;

The transceiver is used to receive signals or send signals; the processor is used to execute computer-executed instructions stored in the memory, so that the terminal device performs the first aspect and the second aspect or the first aspect and the second aspect A method in any one of the possible implementations.

In a tenth aspect, the embodiment of the present application provides a network device, including: a processor and a transceiver;

The transceiver is used to receive signals or send signals; the processor is used to execute computer-executable instructions stored in the memory, so that the network device performs the third aspect and the fourth aspect or the third aspect and the fourth aspect A method in any one of the possible implementations.

In the eleventh aspect, the embodiment of the present application provides a data transmission system, the data transmission system includes a terminal device and a network device; the terminal device is used to implement the first aspect or any possible implementation manner of the first aspect The method in the third aspect, where the network device is configured to execute the method in the third aspect or any possible implementation manner of the third aspect;

Alternatively, the terminal device is configured to execute the method in the second aspect or any possible implementation manner of the second aspect, and the network device is configured to execute the fourth aspect or any possible implementation manner of the fourth aspect method in

In a twelfth aspect, the embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is run on one or more processors, the first The method in any possible implementation manner of the aspect to the fourth aspect or the first aspect to the fourth aspect is executed.

In a thirteenth aspect, the embodiment of the present application provides a computer program product, the computer program product includes program instructions, and when the program instructions are executed by a processor, the processor executes the first to fourth aspects or the first aspect. The method in any possible implementation manner of the aspect to the fourth aspect.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background art, the following will briefly introduce the drawings that are required in the embodiments of the present application or the background art.

FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of a model for calculating the maximum differential delay value provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of a scenario where carrier aggregation is performed on component carriers from different satellites in different orbits provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of a scenario where carrier aggregation is performed on component carriers from different satellites in the same orbit provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a scenario where carrier aggregation is performed on component carriers from the same satellite and different network devices provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of a DRX cycle provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of a relationship between a wake-up signal and an activation period in a single cell provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of a relationship between wake-up signals and activation periods in multiple cells provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of DRX configuration when carrier aggregation is used in a land network provided by an embodiment of the present application;

FIG. 10 is a schematic diagram of DRX configuration when carrier aggregation is used in an NTN provided by an embodiment of the present application;

FIG. 11 is a schematic flowchart of a method for receiving a wake-up signal provided in an embodiment of the present application;

FIG. 12 is a schematic flowchart of another method for receiving a wake-up signal provided in an embodiment of the present application;

FIG. 13 is a schematic diagram of a terminal device receiving a wake-up signal on a cell with the smallest corresponding air interface propagation delay value provided by an embodiment of the present application;

FIG. 14 is a schematic flowchart of another method for receiving a wake-up signal provided by an embodiment of the present application;

FIG. 15 is a schematic diagram of a terminal device receiving wake-up signals on multiple cells according to an embodiment of the present application;

FIG. 16 is a schematic flowchart of another method for receiving a wake-up signal provided in an embodiment of the present application;

FIG. 17 is a schematic flowchart of another method for receiving a wake-up signal provided in an embodiment of the present application;

Fig. 18 is a schematic diagram of a terminal device receiving a wake-up signal on a primary cell and using the wake-up signal to control the primary cell and a target secondary cell according to an embodiment of the present application;

Fig. 19 is a schematic structural diagram of a terminal device provided by an embodiment of the present application

FIG. 20 is a schematic structural diagram of a network device provided by an embodiment of the present application;

Fig. 21 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

Fig. 22 is a schematic structural diagram of a module device provided by an embodiment of the present application.

Detailed ways

The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. As used in the specification and appended claims of this application, the singular expressions "a", "an", "above", "the" and "this" are intended to include the plural expressions as well, unless the context clearly dictates otherwise. It should also be understood that the term "and/or" as used in this application refers to and includes any and all possible combinations of one or more of the listed items. The terms "first" and "second" in the specification, claims and drawings of the present application are used to distinguish different objects, rather than to describe a specific order.

Non-terrestrial networks (NTN) can be understood as networks that use satellites or unmanned aircraft system (unmanned aircraft system, UAS) platforms for radio frequency transmission. Exemplarily, compared with a traditional terrestrial network, such as a long term evolution (long term evolution, LTE) network, the NTN may use satellites or high-altitude platforms (high-altitude platforms, HAP) for network deployment.

Typical scenarios where NTN is applicable include all-terrain coverage, signaling offload, emergency communications, Internet of Things, and broadcasting services. For example, NTN can be applied to scenarios where base stations cannot be built, such as continuous coverage in remote mountainous areas, deserts, oceans, and forests; or, NTN can be applied to scenarios where base stations are damaged, such as emergency communications when disasters occur or base stations are damaged; or , NTN can be applied to network coverage on high-speed moving vehicles. For example, due to high cost and physical constraints, it is difficult to use traditional ground base stations for network coverage on high-speed moving vehicles such as airplanes or high-speed rail. In the above situation Under this situation, the advantages of NTN's all-terrain coverage can be used for network coverage.

Exemplarily, in order to describe the solution provided by the present application more clearly and facilitate understanding, a satellite communication system is taken as an example to introduce related terms involved in the embodiment of the present application.

1. Network Architecture

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application. As shown in FIG. 1 , the communication system includes a satellite, a terminal device, and a gateway (gateway, which can also be understood as a ground station or an earth station, etc.). Wherein, the part 101 can be understood as the coverage area of a cell of the satellite, and the coverage area can include one or more beams. For example, each dotted ellipse in FIG. 1 can be understood as a beam, and the part 101 includes 20 beams. It can be understood that, in the coverage area of a cell, one or more terminal devices may be included, and one or more gateway stations may also be included.

In the communication system, the wireless link between the satellite and the terminal equipment may be called a service link, and the wireless link between the satellite and the gateway station may be called a feedback link. In some embodiments, there may also be an inter-satellite link between satellites to provide data backhaul. It can be understood that, generally, one or several gateway stations of the communication system need to be connected to a public data network (public data network, PDN), such as the network in FIG. 1 .

Exemplarily, the terminal device may also be called user equipment (user equipment, UE), terminal, access terminal, subscriber unit, subscriber station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication device, User Agent or User Device. The terminal device may be a mobile station (mobile station, MS), a subscriber unit (subscriber unit), a drone, an Internet of Things (internet of things, IoT) device, a station in a wireless local area network (wireless local area network, WLAN), ST), cellular phone (cellular phone), smart phone (smartphone), cordless phone, wireless data card, tablet computer, session initiation protocol (session initiation protocol, SIP) phone, wireless local loop (wireless local loop, WLL) station , personal digital assistant (PDA) equipment, laptop computer (laptop computer), machine type communication (machine type communication, MTC) terminal, handheld device with wireless communication function, computing device or connected to a wireless modem Other processing devices, vehicle-mounted devices, and wearable devices (also referred to as wearable smart devices). The terminal device may also be a terminal device in a next-generation communication system, for example, a terminal device in a 5G system or a terminal device in a future evolved public land mobile network (PLMN), a new radio (new radio, NR ) Terminal equipment in the system, etc.

It can be understood that the base stations in the communication system may be deployed in different locations. For example, in some embodiments, a base station may be deployed on land, for example, the gateway station in FIG. 1 may have the function of a base station. In the above case, the satellite will act as a relay between the terminal device and the gateway station, receive the data sent by the terminal device through the service link, and then forward the data to the ground gateway station through the feedback link.

In some other embodiments, the base station may also be deployed on a satellite, for example, the satellite in FIG. 1 may have the function of a base station. In the above case, the terminal device can communicate with the satellite with the base station function through the service link.

Therefore, it can be understood that, regardless of whether the base station is deployed on a satellite in the air or a gateway station on the ground, the terminal device needs to perform data interaction with the satellite. In the embodiment of this application, the base station can be considered as an evolved base station (evolved Node B, eNB) in the LTE system, or it can also be considered as a next generation base station node (next generation node base station, gNB) in the 5G system or the NR system. ).

In this embodiment of the present application, a network device can be understood as a device that provides communication coverage in a specific geographical area and can communicate with one or more terminal devices located in the coverage area. In some embodiments, the network device may also be used to communicate with one or more devices having partial terminal functions. Exemplarily, the network device may communicate with a macro base station or a micro base station. Exemplarily, the network device may be a base station (base transceiver station, BTS) in a global system for mobile communications (GSM) or a code division multiple access (code division multiple access, CDMA) system, or an eNB, or gNB and other satellite base stations and satellite relay nodes, etc. In addition, the network device can also be an access point (access point, AP), a transport node (transport point, TRP), a central unit (central unit, CU) or other network entities, and can include some or all of the functions of the above network entities. All functions. Exemplarily, taking FIG. 1 as an example, if the gateway station in FIG. 1 has a base station function, then the gateway station can be understood as a network device; if the satellite in FIG. 1 has a base station function, then the satellite can be understood as a network device.

For ease of understanding, the terms or methods involved in this application will be exemplarily described hereinafter with network devices as the main body.

2. The maximum differential delay value

In a non-terrestrial network, the propagation delay of communication between terminal equipment and network equipment is different at different locations within the coverage area of a cell or beam. Exemplarily, in this embodiment of the application, the maximum differential delay value can be understood as the propagation delay corresponding to the position furthest from the network device and the propagation time corresponding to the position closest to the network device within the coverage area of a certain cell or a certain beam. delay difference.

Exemplarily, if the maximum differential delay value is calculated for the coverage of a certain cell, the maximum differential delay value is the maximum differential delay value at the cell level. It can be understood that the maximum differential delay values corresponding to different cells may be the same or different.

Exemplarily, if the maximum differential delay value is calculated for the coverage of a certain beam, the maximum differential delay value is the maximum differential delay value at the beam level. It can be understood that the maximum differential delay values corresponding to different beam coverage ranges may be the same or different.

For example, please refer to FIG. 2 . FIG. 2 is a schematic diagram of a model for calculating a maximum differential delay value provided by an embodiment of the present application. It can be understood that, the schematic diagram shown in FIG. 2 takes the coverage area of a beam as an example. As shown in Figure 2, d1 is the shortest distance between the satellite and the beam coverage area, and d2 is the furthest distance between the satellite and the beam coverage area.

It can be understood that since the satellite operates based on a specific orbit, that is, the movement of the satellite is regular, therefore, the change of the propagation delay caused by the satellite movement is regular and predictable. Exemplarily, the satellite (or network device) can calculate the maximum differential delay value corresponding to a cell or beam coverage area through the Pythagorean Theorem, which will not be repeated here.

In the NTN network, since the satellite is relatively far from the ground, and the coverage of the cells or beams formed by the satellites is relatively large, there is a large differential delay in a certain cell or a certain beam coverage. For example, twice the maximum differential delay value of a geostationary satellite is 20.6 milliseconds.

3. Carrier aggregation (CA)

In order to increase the peak rate of a single user and improve the system capacity, the third generation partnership project (3rd generation partnership project, 3GPP) introduced carrier aggregation in R10. Each carrier participating in carrier aggregation can be called a component carrier (component carrier, CC). Therefore, carrier aggregation can be understood as a technology for a terminal device to aggregate multiple component carriers together to increase transmission bandwidth.

It can be understood that in the NTN, there may be multiple carrier aggregation scenarios, and different carrier aggregation scenarios correspond to different delay differences. For example, please refer to FIG. 3 . FIG. 3 is a schematic diagram of a scene where component carriers from different satellites in different orbits are aggregated according to an embodiment of the present application. As shown in FIG. 3 , satellite B and satellite C are located at the same orbital altitude, and the satellite orbital altitude where satellite A is located is higher than the orbital altitudes where satellite B and satellite C are located. Carriers transmitted by satellite A, satellite B, and satellite C are aggregated in area 301 on the ground, and area 301 can be understood as a coverage area of a cell or a coverage area of a beam. It can be understood that since the height difference between different orbits can reach hundreds or even tens of thousands of kilometers, for the scenario shown in Figure 3, the delay difference between different component carriers performing carrier aggregation is relatively large, which may tens or even hundreds of milliseconds.

For example, please refer to FIG. 4 . FIG. 4 is a schematic diagram of a scenario of performing carrier aggregation on component carriers from different satellites in the same orbit provided by an embodiment of the present application. As shown in FIG. 4, satellite A, satellite B, and satellite C are located at the same orbital altitude. Carriers transmitted by satellite A, satellite B, and satellite C are aggregated in area 401 on the ground, and area 401 may be understood as a coverage area of a cell or a coverage area of a beam. It can be understood that although the satellites are located at the same orbital altitude, the distances between different satellites and the 401 area are different. Therefore, for the scenario shown in Figure 4, the delay difference between different component carriers performing carrier aggregation is also large . Generally, there is a delay difference of several milliseconds to tens of milliseconds between different component carriers.

For example, please refer to FIG. 5 . FIG. 5 is a schematic diagram of a scenario of performing carrier aggregation on component carriers from the same satellite but different network devices provided by an embodiment of the present application. As shown in Figure 5, the gateway station A and the gateway station B can be understood as network equipment with base station functions. In the above case, the satellite acts as a relay between the terminal equipment and the network equipment for data forwarding. As shown in Figure 5, taking the aggregation between two component carriers as an example, the satellite can transmit the first component carrier and the second component carrier, and the coverage area of the first component carrier on the ground can be the area 501 in Figure 5, The coverage area of the second component carrier on the ground may be the area 502 in FIG. 5 . Wherein, the first component carrier can come from gateway A, and the second component carrier can come from gateway B. It can be understood that, because the distance between gateway A and gateway B and the satellite is different, gateway A The time delay for the transmitted carrier to reach area 501 via the satellite is different from the time delay for the carrier transmitted by gateway B to arrive at area 502 via the satellite, that is, there is also a large time delay difference between the first component carrier and the second component carrier. Generally, the delay difference can reach 3 milliseconds to 10 milliseconds.

It can be seen from the above that in NTN, there is a large delay difference between different component carriers performing carrier aggregation.

In addition, it can be understood that when multiple different component carriers perform carrier aggregation, they need to cooperate with each other to work. Exemplarily, multiple different component carriers for carrier aggregation may be divided into one primary carrier and multiple secondary carriers.

In the embodiment of the present application, a primary cell (Pcell) can be understood as a cell used for radio resource control (radio resource control, RRC) communication with a terminal device, and a component carrier corresponding to a PCell can be understood as a primary component carrier (primary component). carrier, PCC). Exemplarily, the Pcell may be a cell where the terminal device performs initial connection establishment, or may be a cell where the terminal device performs RRC connection reestablishment, or may be a cell designated by the terminal device during a handover (handover) process.

In the embodiment of the present application, a secondary cell (Scell) may be understood as a cell for providing additional radio resources to a terminal device, and a component carrier corresponding to a Scell may be understood as a secondary component carrier (SCC). Generally, the Scell can be added during RRC reconfiguration, and there may be no RRC communication between the Scell and the terminal device.

It can be understood that a terminal device configured with carrier aggregation can be connected to one Pcell and multiple Scells. Generally, a Pcell is used to manage other Scells. For example, a Pcell can control when to add or delete one or some Scells .

4. Discontinuous reception (DRX)

It can be understood that packet-based data flow is usually bursty, that is, there is data transmission for a period of time, but there is no data transmission for a long period of time in the next period. When there is no data transmission, the power consumption can be reduced by stopping receiving the physical downlink control channel (PDCCH), thereby increasing the battery life of the terminal device and achieving the purpose of energy saving.

Based on this, 3GPP introduced DRX in R13. The basic mechanism of DRX can be understood as a network device configuring a DRX cycle (DRX cycle) for a terminal device in the RRC connection state. The DRX cycle can include an activation period (on duration) and a dormancy period (opportunity for DRX or DRX off). Wherein, in the on duration, the terminal device monitors and receives the PDCCH; in the DRX off period, the terminal device stops receiving the PDCCH (including stopping the blind detection of the PDCCH). It can be understood that the dormant terminal equipment does not receive the PDCCH, but can receive data from other physical channels, such as a physical downlink shared channel physical channel (physical downlink shared channel, PDSCH).

For example, please refer to FIG. 6 , which is a schematic diagram of a DRX cycle provided by an embodiment of the present application. As shown in FIG. 6 , in the time domain, the time of the terminal equipment configured with the DRX mechanism is divided into successive DRX cycles.

It can be understood that if the terminal device does not receive the PDCCH for a long time, if there is data arriving, the time delay of data transmission will be increased. Therefore, the choice of DRX cycle needs to consider the balance between battery saving and delay. Exemplarily, the long DRX cycle is beneficial to prolong the battery life of the terminal device. For example, in the process of using the terminal device to browse the webpage, when the user is reading the downloaded webpage, continuous reception of downlink data is a waste of resources . Exemplarily, a shorter DRX cycle is conducive to a faster response when there is new data transmission, for example, the terminal device requests another webpage or conducts a voice over internet protocol (pVoIP) call When , a short DRX cycle is required to reduce delay.

In order to meet the above requirements, each terminal device can be configured with two different DRX cycles, such as shortDRX-Cycle and longDRX-Cycle. Exemplarily, when the shortDRX-Cycle is configured on the terminal device, the longDRX-Cycle should be configured as a multiple of the shortDRX-Cycle. It can be understood that at any moment, the terminal device uses one of the configurations.

It can be understood that, in order to support the DRX mechanism, the network device may configure DRX-related timers and other parameters for the terminal device. Exemplarily, drxStartOffset can specify the starting subframe of the DRX cycle, and longDRX-Cycle can specify how many subframes (that is, the number of consecutive subframes) a long DRX cycle occupies. Both of the above two parameters can be determined by the longDRX-CycleStartOffset field. onDurationTimer can specify the number of consecutive PDCCH subframes that need to monitor the PDCCH from the start subframe of the DRX cycle.

It is understandable that in the carrier aggregation scenario, the terminal device is configured with at most two sets of DRX configurations, and the two sets of DRX configurations only have different sizes of on-duration timer and inactive-timer, and other configuration parameters are the same (such as DRX cycle, DRX start initial time domain position). In some embodiments, when the terminal device is configured with multiple secondary cells, if the network device is configured with only one set of DRX parameters, all cells may share the same set of DRX configurations. If the network configures two sets of DRX parameters, one set of DRX parameters can be aimed at the secondary cell in the FR1 frequency band, and the other set of DRX parameters can be aimed at the secondary cell in the FR2 frequency band.

5. Wake-up signal (WUS)

In order to further save the power consumption of terminal equipment in the RRC connection state, 3GPP introduced a wake-up signal in R16 (which can be understood as DCI format 2_6). It can be understood that before the wake-up signal is introduced, the terminal device will be activated within the on duration of each DRX cycle, and then monitor the PDCCH. After the wake-up signal is introduced, the terminal device needs to receive the wake-up signal before the on-duration of each DRX cycle, determine whether it is activated during the on-duration according to the indication of the wake-up signal, and then monitor the PDCCH.

For example, please refer to FIG. 7 . FIG. 7 is a schematic diagram of a relationship between a wake-up signal and an activation period in a single cell according to an embodiment of the present application. As shown in Figure 7, the terminal device can receive the wake-up signal A sent by the network device before the activation period A, and determine whether to activate during the activation period A according to the indication of the wake-up signal A; similarly, the terminal device can receive the wake-up signal A before the activation period B. The wake-up signal B sent by the network device determines whether to activate in the activation period B according to the indication of the wake-up signal B.

In some embodiments, the network device may send the wake-up signal through multicast, therefore, the wake-up signal received by each terminal device may include multiple bit blocks, and each bit block corresponds to the energy-saving indication information of a terminal device. Exemplarily, the energy saving indication information may include a wake-up indication and a secondary cell dormancy indication (Scell dormancy indication), that is, each bit block may include a wake-up indication of 1 bit, and a secondary dormancy indication of X bits. , wherein the value of X above can be determined by the number of secondary cells or the number of secondary cell groups configured by the network. The terminal device may determine whether to start an activation timer (on-duration timer) of the cell according to the above-mentioned 1-bit wake-up indication. In some embodiments, if the information in the wake-up indication indicates that the terminal device starts the on-duration timer, the terminal device may determine whether to monitor the PDCCH on the corresponding secondary cell according to the value of the above X bit.

For example, please refer to FIG. 8 . FIG. 8 is a schematic diagram of a relationship between wake-up signals and activation periods in multiple cells according to an embodiment of the present application. As shown in Figure 8, on the primary cell, the terminal device receives a wake-up signal (that is, WUS in Figure 8) before each activation period (which can be understood as on duration), and if the wake-up signal indicates to wake up the next activation period, then the terminal The device will be activated in the next activation period of the primary cell and the secondary cell (such as secondary cell A, secondary cell B, and secondary cell C), and then monitor the PDCCH; if the wake-up signal indicates that it will sleep in the next activation period, then the terminal device can The next DRX cycle of the primary cell and the secondary cell is dormant, that is to say, the terminal device can be in a dormant state during the entire period of the next DRX cycle and does not receive the PDCCH.

It can be understood that in the land network, due to the short distance between the network device and the terminal device, the delay difference between different component carriers performing carrier aggregation is small and negligible. Therefore, it can be considered that the The arrival time of data at the end device is slot-aligned or frame-aligned.

For example, please refer to FIG. 9 . FIG. 9 is a schematic diagram of DRX configuration when carrier aggregation is adopted in a land network provided by an embodiment of the present application. As shown in FIG. 9 , the terminal device exemplarily performs carrier aggregation on three cells, where the primary cell corresponds to the primary component carrier, the secondary cell A corresponds to the secondary component carrier A, and the secondary cell B corresponds to the secondary component carrier B.

It can be understood that different component carriers for carrier aggregation may come from the same network device or from different network devices, therefore, the foregoing network device may be understood as one network device or multiple network devices. It can be understood that no matter whether the component carrier is from the same network device or multiple network devices, the network device sends a certain frame of data to the terminal device at the same time, and then the terminal device receives it.

Each rectangle in Figure 9 can be understood as an on duration. Exemplarily, assuming that the frame number of the start time domain position of the on duration is M, the network device sends the frame number M to the terminal device through the primary component carrier, secondary component carrier A, and secondary component carrier B respectively at time T0 data. Then, the terminal device may receive the above data with the frame number M through different cells (such as the primary cell, secondary cell A, secondary cell B, and secondary cell C in FIG. 9 ) at time T1. Therefore, it can be considered that in the land network, the starting time domain positions of onduration in different cells are aligned.

However, in NTN, due to the long distance between the satellite and the terminal equipment, under different carrier aggregation scenarios (such as the scenarios shown in Figure 3, Figure 4 and Figure 5), the delay difference between different component carriers are large, therefore, it can be considered that the arrival time of data of different carriers to the terminal device cannot be time slot aligned or frame aligned.

For example, please refer to FIG. 10 . FIG. 10 is a schematic diagram of DRX configuration when carrier aggregation is adopted in NTN provided by an embodiment of the present application. As shown in FIG. 10 , the terminal device exemplarily performs carrier aggregation on three cells, where the primary cell corresponds to the primary component carrier, the secondary cell A corresponds to the secondary component carrier A, and the secondary cell B corresponds to the secondary component carrier B.

Each rectangle in Figure 10 can be understood as an on duration. Exemplarily, assuming that the frame number of the start time domain position of the on duration is N, the network device sends the frame number N to the terminal device through the primary component carrier, secondary component carrier A, and secondary component carrier B respectively at time T0 data. Then, the terminal device may receive the data with frame number N from the primary cell at time T1; receive the data with frame number N from the secondary cell A at time T2; receive the data with frame number N from the secondary cell B at time T3. Data with frame number N. It can be understood that the above-mentioned time T1, time T2 and time T3 are different time, which may be specifically determined by the time delay between the terminal device and the network device. Therefore, it can be considered that in NTN, the starting time domain positions of onduration in different cells are not aligned.

When the communication system adopts the carrier aggregation and the DRX mechanism, how to make the wake-up signal received by the terminal equipment effectively adapt to the DRX mechanism so as to achieve the purpose of energy saving is a problem that needs to be solved.

Based on this, an embodiment of the present application provides a method for receiving a wake-up signal, a method for sending a wake-up signal, and related devices. Through some embodiments of the present application, the wake-up signal received by the terminal device can be effectively adapted to the DRX mechanism, thereby achieving The purpose of energy saving. It can be understood that the wake-up signal is sent by the network device and received by the terminal device. Therefore, the above method for receiving the wake-up signal can be performed by the terminal device, and the above method for sending the wake-up signal can be performed by the network device. The relevant description of 1 has already included the description of the terminal device and the network device, and will not be repeated here. In addition, for ease of understanding, the method provided by this application will be explained next by combining the terminal device and the network device.

For example, please refer to FIG. 11. FIG. 11 is a schematic flowchart of a method for receiving a wake-up signal provided in an embodiment of the present application, wherein the method includes:

1101: The terminal device determines the target cell, the target cell is determined by the air interface propagation delay value corresponding to the cell where the terminal device performs carrier aggregation, and the air interface propagation delay value corresponding to the carrier aggregation cell is the network device corresponding to the carrier aggregation cell The air interface propagation delay value between the terminal device and the terminal device.

It can be understood that each component of the carrier aggregation performed by the terminal device may be called a cell or a carrier. For the relevant description of the carrier aggregation, please refer to the previous part 3, which will not be repeated here. In addition, for ease of understanding, the following embodiments are collectively described in terms of cells.

It can be understood that there may be multiple cells where the terminal device performs carrier aggregation. Exemplarily, the terminal device may aggregate 5 cells, or aggregate 32 cells, and so on. The one or more target cells may be understood as a part of multiple cells where the terminal device performs carrier aggregation. The multiple cells for which the terminal device performs carrier aggregation may come from the same network device or from different network devices. In the embodiment of this application, the air interface propagation delay value corresponding to each cell where the terminal device performs carrier aggregation can be obtained in the following manner:

For ease of understanding, any cell where the terminal device performs carrier aggregation may be recorded as the first component cell.

The terminal device may acquire configuration information of the first component cell through a network device corresponding to the first component cell. Since in carrier aggregation, the primary cell can be used to manage other secondary cells, the terminal device can also obtain the configuration information of the first component cell through the network device corresponding to the primary cell. Exemplarily, the terminal device may obtain the specific configuration of the first component cell by receiving configuration information (for example, RRC signaling) sent by the network device.

On the one hand, in NTN, the air interface propagation delay value between the terminal device and the network device is often related to the satellite, and the terminal device can obtain its own position information through the global navigation satellite system (GNSS), and then, the terminal The device can determine the air interface propagation delay value between the satellite corresponding to the first component cell and the terminal device through the ephemeris information of the satellite corresponding to the first component cell and the location information of the terminal device. In this embodiment of the application, the The air interface propagation delay value can be recorded as the terminal equipment-satellite delay value.

On the other hand, the terminal device can obtain the satellite corresponding to the first component cell and the first component cell through RRC signaling, or a medium access control element (medium access control element, MAC CE), or system information. Air interface propagation delay value between network devices corresponding to a cell. In this embodiment of the present application, the air interface propagation delay value may be a satellite-network device delay value.

Finally, the air interface propagation delay value corresponding to the first component cell is equal to the terminal device-satellite delay value plus the satellite-network device delay value. It can be understood that if the network equipment is deployed on a satellite, the satellite-network equipment delay value can be equal to 0. In this case, the air interface propagation delay value corresponding to the first component cell is equal to the terminal equipment-satellite delay value .

After the terminal device determines the air interface propagation delay value corresponding to the cell performing carrier aggregation, the terminal device determines the target cell. It can be understood that the number of the target cell may be one, and in this case, the terminal device receives a wake-up signal on one target cell, and the wake-up signal received by the terminal device on this one target cell is used to control the terminal device on the carrier Whether the aggregated cells are activated during the activation period. The number of target cells can also be multiple. In this case, the terminal device can receive wake-up signals on multiple target cells, and each wake-up signal is used to control whether the terminal device is activation.

1102: The network device determines the target cell. The target cell is determined by the air interface propagation delay value corresponding to the cell where the carrier aggregation is performed by the terminal device. The air interface propagation delay value corresponding to the carrier aggregation cell is the network device corresponding to the carrier aggregation cell. The air interface propagation delay value between the terminal device and the terminal device.

Similar to step 1101, the network device may determine the target cell in various ways. Exemplarily, the terminal device can first determine one or more candidate cells through the air interface propagation delay value corresponding to each cell, and the network device receives the instruction of the terminal device to determine; it can also be based on the corresponding The air interface propagation delay value is used to determine the target cell.

1103: The network device sends a wake-up signal to the terminal device on the target cell, and correspondingly, the terminal device receives the wake-up signal on the target cell.

According to the description of step 1101 and step 1102, it can be understood that in this embodiment of the present application, the terminal device may determine the target cell before the network device; or the network device may determine the target cell before the terminal device.

In the embodiment of the present application, the wake-up signal is used to control whether the terminal device is activated during the activation period in the carrier aggregation cell. Exemplarily, the terminal device may receive a wake-up signal before the activation period, and if the wake-up signal indicates that the terminal device needs to be activated to monitor the PDCCH, then the terminal device is activated in the corresponding cell; if the wake-up signal indicates that the terminal device does not need to be activated, that is, no If it is necessary to monitor the PDCCH, the terminal device is not activated in the corresponding cell, that is, it continues to stay in a dormant state and does not monitor the PDCCH.

In some embodiments, when the network device needs the terminal device to be activated, the network device can send a wake-up signal to the terminal device, and the terminal device receives the wake-up signal accordingly; when the network device does not need the terminal device to be activated , the network device may determine not to send the wake-up signal to the terminal device, and accordingly, the terminal device determines not to receive the wake-up signal.

To sum up, in the embodiment of this application, the terminal device first determines one or more target cells according to the air interface propagation delay value corresponding to the cell, and then receives the wake-up signal sent by the network device on the one or more target cells, which can After receiving the wake-up signal, the terminal device can effectively control the activation period of the cell indicated by the wake-up signal, that is, the wake-up signal received by the terminal device can effectively adapt to the DRX mechanism, thereby achieving the purpose of energy saving.

In order to better understand this solution, the method proposed by this application will be explained in different situations. First of all, in the first aspect, the target cell can be determined by the terminal device through the air interface propagation delay value corresponding to each cell to determine the candidate cell, and indicate to the network device, and then determine it through the feedback of the network device. The above situation will be described below Make an introduction.

In some implementation manners, the terminal device may directly determine the target cell according to the air interface propagation delay value corresponding to each cell, and indicate to the network device. In some embodiments, the method includes:

The terminal device sends first indication information to the network device, where the first indication information is used to indicate one or more cells, and the one or more cells include the target cell; the one cell is the corresponding air interface propagation in the carrier aggregation cell The cell with the smallest delay value, the multiple cells are cells with a smaller corresponding air interface propagation delay value in the carrier aggregation cell; correspondingly, the network device receives the first indication information;

The network device determines the target cell according to the first indication information, and the terminal device determines the target cell according to the first indication information.

In this embodiment of the present application, the indication information (such as the above-mentioned first indication information and the second indication information hereinafter) indicates a cell (for example, the one or more cells, and the cells described later) should be understood as indicating the identity of the cell, For example, the number of the residential area will not be described in detail later. For example, the foregoing first indication information being used to indicate one or more cells should be understood as that the first indication information is used to indicate identities of the one or more cells.

It can be understood that the terminal device may send the first indication information to the network device in various situations. Exemplarily, the terminal device may send the first indication information to the network device when the RRC connection is completed; or, the terminal device may send the first indication information to the network device when its own location information changes; or, the terminal device may send the first indication information to the network device when When receiving the instruction from the network device, the first instruction information and the like are sent to the network device. The terminal device may send the first indication information to the network device corresponding to the primary cell, and then the network device corresponding to the primary cell may convey the first indication information to network devices corresponding to other cells through interaction information between network devices; or, the terminal The device may send the first indication information to a network device corresponding to each cell. In a word, all network devices corresponding to the terminal device can know the first indication information.

It can be understood that, when the terminal device indicates a cell to the network device through the first indication information, the cell may be the target cell, and after the network device receives the first indication information, both network devices can A wake-up signal is sent to the terminal device on one cell, and the terminal device can receive the wake-up signal sent by the network device on the one cell.

It can be understood that, when the terminal device indicates multiple cells to the network device through the first indication information, the network device may use the first cell indicated by the first indication information to send a wake-up signal to the terminal device, and the terminal device may The first cell indicated by the first indication information receives the wake-up signal sent by the network device. Exemplarily, the terminal device may indicate the multiple cells in the order of the air interface propagation delay value, and place the cell with the smaller air interface propagation delay value at a higher position in the first indication information. Similarly, the cell with the smaller air interface delay value can be placed at a later position in the first indication information. In this case, the network device can use the last cell indicated by the first indication information to send a message to the terminal device Sending a wake-up signal, the terminal device may use the last cell indicated by the first indication information to receive the wake-up signal sent by the network device.

In some implementation manners, the target cell may be that the terminal device first determines some candidate cells through the air interface propagation delay value corresponding to the cell, and indicates to the network device, and then determines through feedback from the network device. In some embodiments, after the network device receives the first indication information, the method further includes:

The network device determines the target cell according to the first indication information, where the target cell is the one cell, or the target cell is one of the multiple cells;

The network device sends second indication information to the terminal device, where the second indication information is used to confirm the first indication information; or, the network device sends second indication information to the terminal, where the second indication information is used to indicate that the target cell ;

Correspondingly, the terminal device receives the second indication information; the terminal device determines the target cell according to the second indication information.

In the embodiment of the present application, when the terminal device indicates a cell to the network device through the first indication information, the network device may confirm the first indication information through the second indication information. In some embodiments, the second indication information is used to confirm the first indication information. It can be understood that after the network device receives the first indication information, it confirms to the terminal device through the second indication information that it has received the first indication information. After that, the terminal device can determine to use a cell as the target cell to receive the wake-up signal; when the network device needs to send the wake-up signal, it analyzes the first indication information, and determines the target cell from the first indication information. Cell, and then send a wake-up signal on the target cell.

In another embodiment, the second indication information is used to confirm the first indication information. It can be understood that the network device determines the target cell from the first indication information after receiving the first indication information, Then confirm to the terminal device through the second indication information, and confirm that a cell indicated in the first indication information is used as the target cell to send the wake-up signal.

It can be understood that, when the terminal device indicates multiple cells to the network device through the first indication information, the network device may select a cell from the multiple cells, and feed back to the terminal device through the second indication information . In this case, the cell selected by the network device from the plurality of cells may be understood as the target cell.

In order to facilitate the understanding of the methods in the above embodiments, please refer to FIG. 12 . FIG. 12 is a schematic flow chart of another method for receiving a wake-up signal provided in an embodiment of the present application. The method includes;

1201: The terminal device sends first indication information to the network device, where the first indication information is used to indicate the first cell, and the first cell is the cell corresponding to the smallest air interface propagation delay value among the cells where the terminal device performs carrier aggregation. Specifically, the network device receives the first indication information.

In this embodiment, the fact that the first indication information is used to indicate the first cell may be understood as a situation in which the terminal device indicates a cell to the network device through the first indication information. It can be understood that, in this embodiment, the first cell is the cell with the smallest air interface propagation delay value among the cells where the terminal device performs carrier aggregation. However, this embodiment of the present application does not limit the type of the first cell. That is, the first cell may be a primary cell, or may also be a secondary cell.

1202: The network device sets the first cell as a target cell.

After receiving the first indication information, the network device sets the first cell as the target cell.

1203: The network device sends second indication information to the terminal device, where the second indication information is used to confirm the first indication information, and accordingly, the terminal device receives the second indication information.

It can be understood that after the network device sets the first cell as the target cell, it needs to give feedback to the terminal device, so that the terminal device can know the target cell actually determined by the network device. The second indication information is used to confirm the first indication information. It can be understood that the network device regards the first cell as the target cell for sending the wake-up signal, and it can also be understood that the network device instructs the terminal device to be on the first cell. Receive a wakeup signal.

1204: The terminal device takes the first cell as the target cell.

After receiving the second indication information from the network device, the terminal device takes the first cell as the target cell

1205: The network device sends a wake-up signal on the target cell, and correspondingly, the terminal device receives the wake-up signal on the target cell.

It can be understood that, in this embodiment, the wake-up signal sent and received on the target cell is used to control the activation period on all cells where the terminal device performs carrier aggregation, that is, the terminal device receives The wake-up signal to determine whether to start the corresponding on-duration timer on each cell.

Through the above method, in the carrier aggregation scenario, after the terminal device receives the wake-up signal sent by the network device, it can effectively control the activation period of the corresponding cell according to the indication of the wake-up signal; it can avoid the delay in receiving the wake-up signal, resulting in ineffective The problem of performing cell wake-up.

In order to facilitate understanding of the embodiment corresponding to FIG. 12 , please refer to FIG. 13 . FIG. 13 is a schematic diagram of a terminal device receiving a wake-up signal on a cell with the corresponding minimum air interface propagation delay value provided by an embodiment of the present application.

As shown in Figure 13, WUS represents the wake-up signal, and the remaining white and black rectangles can be understood as an on duration. The number of cells where the terminal device performs carrier aggregation is three, including the primary cell, the secondary cell A, and the secondary cell B. As shown in FIG. 13 , each cell that performs carrier aggregation on the network device and the terminal device respectively shows 4 on durations as examples. It can be seen from FIG. 13 that, for the primary cell, the secondary cell A, and the secondary cell B of the terminal device, the air interface propagation delay value corresponding to the secondary cell A is the smallest.

Exemplarily, the terminal device may indicate to the network device to configure a wake-up signal monitoring timing on the secondary cell A by reporting the auxiliary information. The network device determines, according to the auxiliary information reported by the terminal device, when to configure a wake-up signal monitoring timing on the secondary cell A, and confirms to the terminal device. Thus, the network device configures the monitoring timing of the wake-up signal on the secondary cell A, and sends the wake-up signal to the terminal device. Correspondingly, the terminal device receives the wake-up signal sent by the network device on the secondary cell A.

The terminal device may determine the next activation period of the current time domain location according to the air interface propagation delay value between other cells and the cell for receiving the wake-up signal. For example, after the terminal device receives the wake-up signal on the secondary cell A, it can directly determine the next activation period of the current time domain location in the secondary cell A, which can be understood as the black rectangle corresponding to the secondary cell A in FIG. 13 . The terminal device can determine the next activation period of the current time domain location in the primary cell according to the absolute value of the difference between the air interface propagation delay value corresponding to the primary cell and the air interface propagation delay value corresponding to the secondary cell A, which can be understood as The black rectangle corresponding to the main cell in Figure 13. Similarly, the terminal device can determine the next activation at the current time domain location in the secondary cell B according to the absolute value of the difference between the air interface propagation delay value corresponding to the secondary cell B and the air interface propagation delay value corresponding to the secondary cell A period, it can be understood as the black rectangle corresponding to the secondary cell B in Figure 13 .

After the terminal device receives the wake-up signal on the secondary cell A (that is, the cell configured with a wake-up signal monitoring opportunity), the terminal device can determine the next activation period at the current time domain position according to the indication of the wake-up signal (which can be understood as Figure 13 Whether the middle black rectangle) wakes up can also be understood as whether the on-duration timer needs to be started.

Through the above method, in the carrier aggregation scenario, after the terminal device receives the wake-up signal sent by the network device, it can effectively control the corresponding activation period according to the indication of the wake-up signal; it can avoid the delay in receiving the wake-up signal, resulting in the inability to effectively perform cell Wake up problem.

In other implementations, the terminal device may also indicate multiple cells to the network device through the first indication information, and then the network device selects according to the multiple cells. Exemplarily, this implementation may include the following steps:

The terminal device sends first indication information to the network device, where the first indication information is used to indicate multiple cells, and the multiple cells are cells with relatively small air interface propagation delay values among the cells where the terminal device performs carrier aggregation; correspondingly , the network device receives the first indication information;

The network device determines a target cell according to the first indication information, where the target cell is one of the multiple cells;

The network device sends second indication information to the terminal device, where the second indication information is used to indicate the target cell; correspondingly, the terminal device receives the second indication information;

The network device sends a wake-up signal on the target cell, and correspondingly, the terminal device receives the wake-up signal on the target cell.

In this embodiment, the terminal device indicates multiple cells to the network device through the first indication information, and among the cells where the terminal device performs carrier aggregation in the multiple cells, the corresponding cell has a smaller air interface propagation delay value. Exemplarily, the terminal device may determine a reference threshold, and cells with an air interface delay value smaller than the reference threshold may be used as the plurality of cells. For example, the reference threshold may be set to 8 ms, 10 ms, etc. according to actual conditions. For another example, the terminal device can sort the cells that perform carrier aggregation by itself according to the corresponding air interface delay values. If the cells are ranked from small to large, then some of the cells that are ranked first can be used as the multiple cells; if Arranged from largest to smallest, a part of the cells that are ranked later can be used as the plurality of cells.

Then, the network device selects a target cell (which can be understood as the target cell) from the multiple cells according to the first indication information, and feeds back to the terminal device through the second indication information. It can be understood that although the terminal device indicates multiple cells to the network device, the network device may select a cell for the transmission of the wake-up signal according to its own resource configuration.

In some other embodiments, the first indication information is also used to indicate the air interface propagation delay value corresponding to each cell in the plurality of cells; the target cell is the smallest corresponding air interface propagation delay value in the plurality of cells district.

In this embodiment, when the terminal device indicates the multiple cells through the first indication information, it also indicates the air interface propagation delay value corresponding to each cell in the multiple cells, so that the network device can pass through the air interface corresponding to each cell. Propagation delay value, select the cell with the smallest corresponding air interface propagation delay value among the multiple cells as the target cell, through the above method, after the terminal device receives the wake-up signal sent by the network device, it can effectively follow the instructions of the wake-up signal Control the corresponding activation period; further avoid the delay in receiving the wake-up signal, resulting in the inability to effectively wake up the cell.

It can be understood that, in the above embodiments, the network device sends a wake-up signal to the terminal device in one cell, and the terminal device is used to control whether the terminal device needs to activate the wake-up signal associated with the wake-up signal in all cells after receiving the wake-up signal. Activation period timer on-durationtimer. In some implementations, the terminal device may receive wake-up signals on multiple cells respectively, and each wake-up signal is used to control whether the terminal device needs to start an on-duration timer associated with the wake-up signal on some cells.

Exemplarily, the terminal device may first group the cells according to the air interface propagation delay values corresponding to the cells, assign a cell in each cell group to receive the wake-up signal, and indicate to the network device. In some embodiments, before the terminal device determines the target cell, the method further includes:

The terminal device sends first indication information to the network device, where the first indication information is used to indicate the cell used to receive the wake-up signal in each of the M cell groups; where the M cell groups are aggregated by the carrier obtained by grouping the cells, the absolute value of the difference between the air interface propagation delay values corresponding to any two cells in each of the M cell groups is less than or equal to the first threshold; the first threshold is determined by The terminal device determines, or the first threshold is indicated by the network device, and the M is a number greater than or equal to 1;

The network device determines the target cell according to the first indication information; correspondingly, the terminal device determines the target cell according to the first indication information.

In this embodiment, the terminal device can first group the cells according to the air interface propagation delay value corresponding to the cell to obtain the M cell groups, and then indicate to the network device that each group is used to receive the wake-up signal by changing the first indication information district. In this case, the terminal device receives the wake-up signal on the cell used to receive the wake-up signal in each of the M cell groups, and the network device is used to receive the wake-up signal in each of the M cell groups. A wake-up signal is sent on the cell of the signal.

It can be understood that, for the above M cell groups, when the M is greater than or equal to 2, it can be understood that the terminal device groups all the cells into at least two groups; when the M is equal to 1, It can be understood that the terminal device selects a part of cells from all the cells as a cell group.

In some embodiments, the cell for receiving the wake-up signal is the cell with the smallest air interface propagation delay value in the cell group where the cell for receiving the wake-up signal is located. In the above case, the terminal device takes the cell with the smallest air interface delay value in the cell group as the cell for receiving the wake-up signal in the cell group, and indicates to the network device through the first indication information, therefore, the terminal device receives the signal from the network device After the wake-up signal is sent, the corresponding activation period can be effectively controlled according to the indication of the wake-up signal; the problem that the delay in receiving the wake-up signal can be avoided, resulting in the inability to effectively perform cell wake-up.

It can be understood that, in the case where the network device knows the corresponding relationship between each cell used to receive the wake-up signal and other cells in the group, the network device can use each cell used to receive the wake-up signal to control whether the terminal device Activation is performed on cells within each group. In the case where the network device does not know the corresponding relationship between each cell used to receive the wake-up signal and other cells in the group, in some embodiments, the first indication information is also used to indicate other cells in each cell group The cell enables the network device to effectively control whether the terminal device activates on the cell in each group through the wake-up signal.

As another example, the terminal device may also send the first indication information to the network device, and then the network device directly determines the target cell according to the first indication information and feeds back the target cell to the terminal device for determination. In some embodiments, please refer to FIG. 14 . FIG. 14 is a schematic flowchart of another method for receiving a wake-up signal provided in an embodiment of the present application. As shown in FIG. 14 , the method includes:

1401: The terminal device sends first indication information to the network device, where the first indication information is used to indicate the cell used to receive the wake-up signal in each of the M cell groups, and other cells in each of the cell groups ; Wherein, the M cell groups are obtained by grouping the cells that carry out carrier aggregation on the terminal equipment, and the difference between the air interface propagation delay values corresponding to any two cells in each cell group in the M cell groups The absolute value of is less than or equal to the first threshold; the M is a number greater than or equal to 1, and correspondingly, the network device receives the first indication information.

Combining the description of step 1101 above, it can be understood that there are often multiple cells where the terminal device performs carrier aggregation, and the terminal device can group the cells where the terminal device performs carrier aggregation to obtain the M cell groups, where M is greater than or equal to 1 number.

Exemplarily, the terminal device can divide some cells with smaller air interface propagation delay values into a cell group according to the air interface propagation delay value corresponding to each cell, which can also be understood as any two cells in each group corresponding to The absolute value of the difference between the air interface propagation delay values is less than or equal to the first threshold.

For example, according to the first threshold, the terminal device may divide the cells whose absolute value of the difference between air interface propagation delay values is less than or equal to the first threshold into a cell group. It can be understood that, in some embodiments, the first threshold may be determined by the terminal device. In other embodiments, the first threshold may be indicated by the network device. For example, the network device may configure the first threshold to the terminal device through system information, or RRC signaling, or MAC CE. It can be understood that the first threshold may be determined according to actual network resource conditions. For example, the first threshold may be 3 ms, 5 ms, 6 ms, etc., which is not limited in the present application.

It can be understood that, for any cell group (may be referred to as the first sub-cell group) in the M cell groups, the terminal device may select a cell in the first sub-cell group for receiving the wake-up signal. It can be understood that the number of cells used to receive the wake-up signal in the first sub-cell group may be one or more. Exemplarily, the terminal device may use the cell with the smaller air interface propagation delay value in the first sub-cell group as the cell for receiving the wake-up signal; or the cell with the smallest air interface propagation delay value in the first sub-cell group As a cell for receiving the wake-up signal; a cell with a smaller air interface propagation delay value and better signal quality in the first sub-cell group may also be used as a cell for receiving the wake-up signal.

Then the terminal device can indicate the cell grouping result to the network device through the first indication information, which can be understood as indicating the cell members of each group and the cell used to receive the wake-up signal in each group.

1402: The network device determines a target cell, where the target cell is determined according to a cell used to receive a wake-up signal in at least one cell group among the M cell groups.

The wake-up signal received on the target cell is used to control whether the terminal equipment is activated during the activation period in the cells of the first cell group, the first cell group includes the target cell, and the first cell group is included in In the at least one cell group.

After the network device receives the first indication information, the network device can know the grouping of cells by the terminal device, and the cell in each cell group selected by the terminal device for receiving the wake-up signal. Therefore, the network device may determine the target cell according to the cell for receiving the wake-up signal in at least one of the M cell groups according to its own resource allocation situation. It can be understood that the network device uses the first indication information sent by the terminal device as a reference to determine the cell actually used for both parties to transmit the wake-up signal, that is, the target cell.

Exemplarily, in a possible implementation manner, the network device may directly accept the indication from the terminal device, that is, the cell in each group indicated by the terminal device is used to receive the wake-up signal as the cell actually used for both parties to transmit the wake-up signal. Alternatively, the network device may also accept some of the cells indicated by the first indication information, that is, the part of the cell group indicated by the terminal device may be used for receiving the wake-up signal as the cells actually used for both parties to transmit the wake-up signal. Alternatively, the network device may re-determine the cells used to send and receive the wake-up signal on some cell groups.

For example, when the first indication information indicates that the number of cells used to receive the wake-up signal in each cell group is one, the network device may directly confirm the first indication information, and then the terminal device and the network device The wake-up signal is sent and received according to the cell indicated by the first indication information.

For another example, the network device may not be able to send a wake-up signal on some cells due to resource allocation constraints, etc., therefore, the network device may confirm a part of the first indication information, that is, each cell group in at least one cell group is used to receive The cell of the wake-up signal is used as the target cell. Exemplarily, the first indication information indicates five cell groups: cell group A, cell group B, cell group C, cell group D, and cell group E, wherein the cells used to receive the wake-up signal in each cell group are respectively For cell A, cell B, cell C, cell D, and cell E, since it is inconvenient for the network device to send wake-up signals on cell A and cell B, the network device can determine that cell C, cell D, and cell E are the target cells, That is, the target cell for receiving the wake-up signal in cell group C is cell C, the target cell for receiving the wake-up signal in cell group D is cell D, and the target cell for receiving the wake-up signal in cell group E is cell E. In some embodiments, the unconfirmed cells A and B may determine not to receive the wake-up signal.

For another example, the network device may reselect a cell for receiving the wake-up signal in each cell group. Exemplarily, in the case where the first indication information indicates that the number of cells used to receive the wake-up signal in each cell group is multiple, the network device may select from the plurality of cells indicated by the terminal device in each cell group Make a selection, and then serve as the target cell. For example, the network device may select a relatively idle cell as the cell for receiving the wake-up signal in each cell group.

1403: The network device sends second indication information to the terminal device, where the second indication information is used to indicate the target cell, and accordingly, the terminal device receives the second indication information.

After the network device determines the target cell, it feeds back to the terminal device through the second indication information. It can be understood that, after receiving the second indication information, the terminal device may determine the target cell according to the second indication information.

1404: The network device sends a wake-up signal on the target cell, and correspondingly, the terminal device receives the wake-up signal on the target cell.

It can be understood that since one target cell is used in each cell group to receive the wake-up signal, that is, the terminal device receives the wake-up signal on the one or more target cells, each wake-up signal received by the terminal device is used to control the wake-up signal in the group of each district. That is to say, the wake-up signal received by the terminal device on the target cell for receiving the wake-up signal in the first cell group is used to control whether the terminal device is activated during the activation period on any cell in the first cell group, The first cell group is any cell group in the at least one cell group.

To sum up, in this embodiment, when the network device evaluates resources to determine whether the terminal device needs to be activated in the next activation period, since each wake-up signal is used to control each cell in the group, and each two The absolute value of the difference between the air interface propagation delay values corresponding to the cells is less than or equal to the first threshold, which can make the resource evaluation of the network device more accurate. Since the terminal device can receive multiple wake-up signals, and each wake-up signal is used to control each cell in the group, the terminal device can effectively control whether more cells are activated in the corresponding activation period after receiving the wake-up signal.

In some embodiments, the target cell for receiving the wake-up signal in the first cell group is the cell in the first cell group with the smallest air interface propagation delay value.

For easy understanding of the embodiment corresponding to FIG. 14 , please refer to FIG. 15 , which is a schematic diagram of a terminal device receiving wake-up signals on multiple cells according to an embodiment of the present application.

As shown in Figure 15, WUS represents the wake-up signal, and the remaining white, black and gray rectangles can be understood as an on duration. Exemplarily, the number of cells where the terminal device performs carrier aggregation is four, including the primary cell, the secondary cell A, the secondary cell B, and the secondary cell C. Wherein, each cell that performs carrier aggregation on the network device and the terminal device respectively shows 4 on durations as examples.

For example, suppose the air interface propagation delay value corresponding to the primary cell is 10ms, the air interface propagation delay value corresponding to the secondary cell A is 8ms, the air interface propagation delay value corresponding to the secondary cell B is 16ms, and the air interface propagation delay value corresponding to the secondary cell C The delay value is 15ms. Assuming that the first threshold is 3ms, the terminal device can divide the primary cell and the secondary cell A into a cell group, which is denoted as group A; and can divide the secondary cell B and secondary cell C into a cell group, which is denoted as group B.

In addition, in the group A, the air interface propagation delay value corresponding to the secondary cell A is the smallest, and the terminal device may use the secondary cell A as a cell for receiving the wake-up signal in the group A. In group B, the air interface propagation delay value corresponding to the secondary cell C is the smallest, and the terminal device can use the secondary cell C as the cell for receiving the wake-up signal in group B.

Then, the terminal device may indicate to the network device the grouping situation and the cells (that is, the secondary cell A and the secondary cell C) used to receive the wake-up signal in each group by reporting the auxiliary information. The network device determines, according to the auxiliary information reported by the terminal device, when to configure wake-up signal monitoring timings on the secondary cell A and the secondary cell C, and confirms to the terminal device. Thus, the network device configures the monitoring timing of the wake-up signal on the secondary cell A and the secondary cell C, and sends the wake-up signal to the terminal device. Correspondingly, the terminal device receives the wake-up signal sent by the network device on the secondary cell A and the secondary cell C.

In the above case, the wake-up signal received by the terminal device is used to control each cell in the group. Exemplarily, as shown in FIG. 15 , the signal received by the terminal device on the secondary cell A is used to control the next activation period of the current time domain location in the primary cell and the secondary cell A, as shown in the black rectangle in FIG. 15 ; The signal received by the terminal device on the secondary cell C is used to control the next activation period of the current time domain location in the secondary cell B and secondary cell C, as shown in the gray rectangle in FIG. 15 . Similarly, as described in FIG. 13 , the terminal device can determine the next activation period of the current time domain location according to the air interface propagation delay value between other cells and the cell used to receive the wake-up signal, which will not be repeated here.

In the second aspect, it can be understood that, in some implementations, the terminal device may indicate to the network device the air interface propagation delay value corresponding to each cell, and the network device determines the value of the air interface propagation delay value corresponding to each cell. The cell receives the wake-up signal and feeds back to the terminal equipment. The above method will be introduced below.

In some embodiments, the network device can determine a cell to send and receive the wake-up signal according to the air interface propagation delay value indicated by the terminal device, and give feedback to the terminal device. Exemplarily, the above method includes the following steps:

The terminal device sends first indication information to the network device, where the first indication information is used to indicate the air interface propagation delay value corresponding to each cell where the terminal device performs carrier aggregation; correspondingly, the network device receives the first indication information;

The network device determines the target cell, where the target cell is the cell with the smallest air interface propagation delay value corresponding to the cells where the terminal device performs carrier aggregation;

The network device sends a wake-up signal on the target cell; correspondingly, the terminal device receives the wake-up signal on the target cell.

It can be understood that this embodiment is similar to the method shown in FIG. 12 above, and reference may be made to the description of the embodiment corresponding to FIG. 12 above, and details are not repeated here.

In some other embodiments, the network device may group each cell according to the air interface propagation delay value indicated by the terminal device, and then each group determines a cell for sending and receiving wake-up signals, and feeds back to the terminal device, for example , the above method includes the following steps:

The network device determines a target cell, where the target cell is a cell for receiving a wake-up signal in each of the N cell groups; wherein, the N cell groups are obtained by grouping cells that perform carrier aggregation on the terminal device, and the The absolute value of the difference between the air interface propagation delay values corresponding to any two cells in each of the N cell groups is less than or equal to the second threshold; the N is a number greater than or equal to 1;

The network device sends second indication information to the terminal device, where the second indication information is used to indicate the target cell and other cells in each cell group; correspondingly, the terminal device receives the second indication information;

It can be understood that, for the above N cell groups, in the case where N is greater than or equal to 2, it can be understood that the network device groups all the cells into at least two groups; in the case where N is equal to 1, It can be understood that the final network device selects a part of cells from all the cells as a cell group.

In this embodiment, the second threshold is determined by a network device. It can be understood that the second threshold may be determined according to actual network resource conditions. For example, the second threshold may be 3 ms, 5 ms, 6 ms, etc., which is not limited in the present application.

In this embodiment, the wake-up signal received on the target cell is used to control whether the terminal device is activated during the activation period in the cells of the second cell group; the second cell group includes the target cell, and the second cell A group is included in the N cell groups.

In some embodiments, the target cell is the cell corresponding to the smallest air interface propagation delay value in the cell group where the target cell is located.

It can be understood that this embodiment is similar to the method shown in FIG. 14 above, and reference may be made to the description of the embodiment corresponding to FIG. 14 above, and details are not repeated here.

It can be understood that, in the above embodiments, the cell indicated by the terminal device to the network device and the cell where the terminal device actually receives the wake-up signal may be any cell that performs carrier aggregation, that is, the primary cell or the secondary cell. In some implementations, the terminal device can indicate to the network device some secondary cells associated with the wake-up signal sent and received on the primary cell, and let the terminal device receive the wake-up signal on the primary cell to control the activation of the primary cell and the associated secondary cell Expect.

For example, please refer to FIG. 16 . FIG. 16 is a schematic flowchart of another method for receiving a wake-up signal provided by an embodiment of the present application. As shown in Figure 16, the method includes:

1601: The terminal device determines the target secondary cell; the target secondary cell is determined by the air interface propagation delay value corresponding to the carrier aggregation cell of the terminal device, and the air interface propagation delay value corresponding to the carrier aggregation cell is Air interface propagation delay value between network equipment and terminal equipment.

As described in step 1101 above, the terminal device may determine the air interface propagation delay value corresponding to each cell performing carrier aggregation. It can be understood that after the terminal device determines the air interface propagation delay value corresponding to the cell performing carrier aggregation, the terminal device can determine the wake-up signal associated with the main cell according to the air interface propagation delay value corresponding to each cell. One or more target SCells.

Exemplarily, the target secondary cell may be determined by the terminal device firstly determining some candidate secondary cells through the air interface propagation delay value corresponding to each cell, and instructing the network device; The corresponding air interface propagation delay value determines some candidate secondary cells, and indicates to the network device, and then determines through the feedback of the network device; it is also possible that the terminal device directly indicates to the network device the air interface propagation delay value corresponding to each cell , and then the network device determines the one or more target secondary cells, and indicates to the terminal device.

In this embodiment, it can be understood that, according to different situations, the number of the target secondary cell may be one or multiple; or, the target secondary cell may also be part of the secondary cell in the cell performing carrier aggregation. A cell, or all secondary cells.

1602: The network device determines the target secondary cell; the target secondary cell is determined by the air interface propagation delay value corresponding to the carrier aggregation cell of the terminal device, and the air interface propagation delay value corresponding to the carrier aggregation cell corresponds to the carrier aggregation cell Air interface propagation delay value between network equipment and terminal equipment.

Similar to step 1601, when the network device determines the target secondary cell, the terminal device may first determine some candidate secondary cells through the air interface propagation delay value corresponding to each cell, and then instruct the network device to determine the target secondary cell; it may also be that the terminal device directly The air interface propagation delay value corresponding to each cell is indicated to the network device, and then the network device itself determines the one or more target secondary cells, which will be described in detail in the following embodiments.

1603: The network device sends a wake-up signal on the primary cell, and correspondingly, the terminal device receives the wake-up signal on the primary cell.

According to the description of step 1601 and step 1602, it can be understood that in this embodiment of the present application, the terminal device may determine the target SCell earlier than the network device; or the network device may determine the target SCell earlier than the terminal device.

In this embodiment, the wake-up signal received by the terminal device on the primary cell is used to control whether the terminal device is activated during the activation period in the target secondary cell and the primary cell, that is, the terminal device wakes up through the wake-up signal received on the primary cell. Determine whether to start the corresponding on-duration timer on the primary cell and the target secondary cell.

To sum up, in this embodiment, the terminal device receives a wake-up signal on the primary cell, and the wake-up signal is used to control the primary cell and the target secondary cell, and since the target secondary cell is transmitted by the corresponding air interface of each cell Determination of the delay value allows the terminal device to effectively control the activation period of the cell indicated by the wake-up signal after receiving the wake-up signal, that is, the wake-up signal received by the terminal device can effectively adapt to the DRX mechanism, thereby achieving the purpose of energy saving.

In some embodiments, the target secondary cell may be determined by the terminal device first determining some candidate secondary cells through the air interface propagation delay value corresponding to each cell, and instructing the network device. In this case, the method includes:

The terminal device sends first indication information to the network device, where the first indication information is used to indicate one or more secondary cells, where the one or more secondary cells include a target secondary cell; correspondingly, the network device receives the first indication information;

The terminal device determines the target secondary cell according to the first indication information;

The network device determines the target secondary cell according to the first indication information;

The network device sends a wake-up signal on the target SCell; correspondingly, the terminal device receives the wake-up signal on the target SCell.

In this embodiment, the terminal device can determine one or more secondary cells according to the air interface propagation delay value corresponding to the cell. After the terminal device indicates the one or more secondary cells to the network device through the first indication information, both parties can directly The one or more secondary cells are used as the target secondary cell.

When the terminal device indicates multiple secondary cells to the network device through the first indication information, both parties may determine the target secondary cell in various ways. For example, when the number of the multiple secondary cells is less than or equal to the threshold (such as 4 or 5), dual transmission may directly use the multiple secondary cells as target secondary cells; When the number of cells is greater than the threshold, both parties can select a part of the cells, and the number of the part of the cells is equal to the threshold; for example, according to the sequence of each cell in the first indication information, from the front or Choose a later position.

In some implementations, the target secondary cell may be that the terminal device first determines some candidate secondary cells through the air interface propagation delay value corresponding to each cell, and indicates to the network device, and then determines it through feedback from the network device, for example Specifically, please refer to FIG. 17. FIG. 17 is a schematic flow chart of another method for receiving a wake-up signal provided in an embodiment of the present application. The method includes:

1701: The terminal device sends first indication information to the network device, where the first indication information is used to indicate one or more secondary cells, and the one or more secondary cells include a target secondary cell; correspondingly, the network device receives the first indication information.

It can be understood that, in this embodiment, the time and manner for the terminal device to send the first indication information to the network device are similar to the foregoing first indication information, and reference may be made to the foregoing description in step 1201 . In addition, for the relevant description of performing carrier aggregation on the terminal device, the determination of the propagation delay value of the air interface corresponding to the cell, etc., please refer to the description in step 1101 above, which will not be repeated here.

1702: The network device determines the target SCell according to the one or more SCells.

1703: The network device sends second indication information to the terminal device, where the second indication information is used to confirm the first indication information; or, the network device sends second indication information to the terminal device, where the second indication information is used to indicate The target secondary cell; correspondingly, the terminal device receives the second indication information.

It can be understood that the terminal device may determine one or more secondary cells according to the air interface propagation delay value corresponding to the cell, and after the terminal device indicates the one or more secondary cells to the network device through the first indication information, the network device may set the The one or more secondary cells are used as the target secondary cell; in this case, the network device may confirm the first indication information through the second indication information.

The second indication information is used to confirm the first indication information. It can be understood that the network device regards one or more secondary cells as the secondary cells related to the wake-up signal, and it can also be understood that the network device instructs the terminal device that the wake-up signal is related to the wake-up signal. One or more secondary cells are associated.

When the terminal device indicates multiple secondary cells to the network device through the first indication information, the network device can select a part of the secondary cells. According to the plurality of secondary cells, a secondary cell with sufficient resource allocation is selected as the target secondary cell, and then the target secondary cell is indicated to the terminal device through the second indication information.

1704: The terminal device determines the target secondary cell according to the second indication information.

After receiving the second indication information from the network device, if the second indication information is used to confirm the first indication information, the terminal device uses one or more secondary cells as the target secondary cells.

In a case where the second indication information is used to indicate a secondary cell, the terminal device uses the secondary cell indicated by the second indication information as the target secondary cell.

1705: The network device sends a wake-up signal on the primary cell, and correspondingly, the terminal device receives the wake-up signal on the primary cell.

In some implementation manners, the terminal device may directly indicate to the network device the air interface propagation delay value corresponding to each cell, and then the network device determines the target secondary cell and indicates to the terminal device to determine the target secondary cell. Exemplarily, the implementation includes the following steps:

The network device determines the target secondary cell;

The network device sends second indication information to the terminal device, where the second indication information is used to indicate the target secondary cell; correspondingly, the terminal device receives the second indication information;

The network device sends a wake-up signal on the primary cell, and correspondingly, the terminal device receives the wake-up signal on the primary cell.

Optionally, the air interface propagation delay value corresponding to each of the one or more secondary cells is greater than or equal to the air interface propagation delay value corresponding to the primary cell. In the above case, it can be ensured that the wake-up signal received by the terminal device on the primary cell can control the associated secondary cell, which can avoid the problem that the wake-up signal reception is delayed seriously, resulting in the inability to perform correct cell wake-up.

In some embodiments, the absolute value of the difference between the air interface propagation delay value corresponding to the target secondary cell and the air interface propagation delay value corresponding to the primary cell is less than or equal to the third threshold.

It can be understood that, in the embodiment corresponding to FIG. 17, the third threshold can be determined by the terminal device, and the third threshold can be indicated by the network device; when the terminal device directly indicates to the network device the air interface propagation value corresponding to each cell delay value, and then the network device determines the target secondary cell, the third threshold is determined by the network device.

Exemplarily, the network device may configure the third threshold to the terminal device through system information, or RRC signaling, or MAC CE. It can be understood that the third threshold may be determined according to actual network resource conditions. For example, the third threshold may be 3 ms, 5 ms, 6 ms, etc., which is not limited in the present application.

In the above case, when the network device evaluates resources to determine whether the terminal device needs to be activated in the next activation period, since the air interface propagation delay value corresponding to each secondary cell is different from the air interface propagation delay value corresponding to the primary cell The absolute value of the difference between is less than or equal to the third threshold, which can shorten the time for the network device to be evaluated, thereby making the resource evaluation of the network device more accurate.

In some other embodiments, the air interface propagation delay value corresponding to each secondary cell in the target secondary cell is greater than or equal to the air interface propagation delay value corresponding to the primary cell. In the above cases, it can be ensured that the wake-up signal received by the terminal device on the primary cell can control the associated secondary cell, which can avoid the problem that the delay in receiving the wake-up signal is serious, resulting in the inability to perform correct cell wake-up.

In some other embodiments, the absolute value of the difference between the air interface propagation delay value corresponding to each of the one or more secondary cells and the air interface propagation delay value corresponding to the primary cell is less than or equal to the second Three thresholds, and the air interface propagation delay value corresponding to each of the one or more secondary cells is greater than or equal to the air interface propagation delay value corresponding to the primary cell. In the above situation, the network device can evaluate the resources more accurately, and it can also avoid the problem that the wake-up signal reception delay is serious, resulting in the failure to perform correct cell wake-up.

In order to facilitate understanding of the above embodiments, please refer to FIG. 18 , which is a schematic diagram of a terminal device receiving a wake-up signal on a primary cell and using the wake-up signal to control the primary cell and the target secondary cell provided by the embodiment of the present application.

As shown in Figure 18, WUS represents the wake-up signal, and the remaining white and black rectangles can be understood as an on duration. Exemplarily, the number of cells where the terminal device performs carrier aggregation is four, including the primary cell, the secondary cell A, the secondary cell B, and the secondary cell C. Wherein, each cell that performs carrier aggregation on the network device and the terminal device respectively shows 4 on durations as examples.

For example, assume that the air interface propagation delay value corresponding to the primary cell is 12ms, the air interface propagation delay value corresponding to the secondary cell A is 8ms, the air interface propagation delay value corresponding to the secondary cell B is 18ms, and the air interface propagation delay value corresponding to the secondary cell C is 18ms. The delay value is 15ms. Assuming that the third threshold is 5ms, the terminal device can select the secondary cell whose air interface propagation delay value is greater than the primary cell, and the absolute value of the difference between the air interface propagation delay value corresponding to the primary cell and the primary cell is less than 5ms. Wake-up signal association, that is, the terminal device can associate the secondary cell B and the secondary cell C with the wake-up signal sent by the primary cell.

After the terminal device determines the secondary cell associated with the wake-up signal sent by the primary cell, it may indicate to the network device the secondary cell associated with the wake-up signal sent by the primary cell by reporting auxiliary information, and the network device determines the primary cell according to the auxiliary information reported by the terminal device. The secondary cell associated with the wake-up signal sent by the cell.

After receiving the wake-up signal in the main cell, the terminal device can determine whether to wake up in the cell associated with the wake-up signal according to the indication of the wake-up signal. As shown in Figure 18, the primary cell is associated with secondary cell B and secondary cell C. After the terminal device receives a wake-up signal on the primary cell, the wake-up signal is used to control the current time domain of the primary cell, secondary cell B, and secondary cell C. The next activation period of the location, as shown in the black rectangle in Figure 18. Similarly, as described in FIG. 13 , the terminal device can determine the next activation period of the current time domain location according to the air interface propagation delay value between other cells and the cell used to receive the wake-up signal, which will not be repeated here.

Through the above embodiments, in the carrier aggregation scenario, the network device can configure the timing of the wake-up signal monitoring on a suitable cell, and the terminal device can effectively control the activation period of the corresponding cell after receiving the wake-up signal, which can avoid receiving the wake-up signal The delay is serious, resulting in the inability to perform correct cell wake-up.

The method in the embodiment of the present application has been described in detail above, and the device provided in the embodiment of the present application will be described below.

For example, please refer to FIG. 19 , which is a schematic structural diagram of a terminal device provided by an embodiment of the present application. As shown in FIG. 19 , the terminal device 190 includes a processing unit 1901 and a communication unit 1902 . Wherein, the processing unit 1901 is configured to perform data processing. The communication unit 1902 may be integrated with a receiving unit and a sending unit, and in some embodiments, the communication unit 1902 may also be called a transceiver unit. Alternatively, the communication unit 1902 may also be split into a receiving unit and a sending unit. The processing unit 1901 and the communication unit 1902 below are the same, and will not be described in detail below.

In the first implementation, the description of each unit is as follows:

The processing unit 1901 is configured to determine a target cell, the target cell is determined according to the air interface propagation delay value corresponding to the cell where the carrier aggregation is performed by the terminal device, and the air interface propagation delay value corresponding to the carrier aggregation cell corresponds to the carrier aggregation cell The air interface propagation delay value between the network device and the terminal device;

The communication unit 1902 is configured to receive a wake-up signal on the target cell, where the wake-up signal is used to control whether the terminal device is activated during the activation period in the carrier aggregation cell.

In a possible implementation manner, the communication unit 1902 is further configured to send first indication information to the network device, where the first indication information is used to indicate one or more cells, and the one or more cells include the target cell; The one cell is the cell with the smallest air interface propagation delay value among the carrier aggregated cells, and the multiple cells are the cells with relatively small air interface propagation delay values among the carrier aggregated cells.

In a possible implementation manner, the communication unit 1902 is further configured to receive second indication information sent by the network device, where the second indication information is used to confirm the first indication information; or,

The communication unit 1902 is further configured to receive second indication information sent by the network device, where the second indication information is used to indicate the target cell, where the target cell is a cell in the plurality of cells.

In a possible implementation manner, the communication unit 1902 is further configured to send first indication information to the network device, where the first indication information is used to indicate the number of cells used to receive the wake-up signal in each of the M cell groups. cell; wherein, the M cell groups are obtained by grouping the carrier-aggregated cells, and the difference between the air interface propagation delay values corresponding to any two cells in each of the M cell groups The absolute value is less than or equal to a first threshold; the first threshold is determined by the terminal device, or the first threshold is indicated by the network device, and the M is a number greater than or equal to 1.

In a possible implementation manner, the communication unit 1902 is further configured to receive second indication information sent by the network device, where the second indication information is used to indicate the target cell, and the target cell is based on at least one of the M cell groups. Determination of cells in a cell group for receiving wake-up signals; the wake-up signals received on the target cell are used to control whether the terminal equipment is activated during the activation period in the cells of the first cell group, the first cell The target cell is included in the group, and the first cell group is included in the at least one cell group.

In a possible implementation manner, the communication unit 1902 is further configured to send first indication information to the network device, where the first indication information is used to indicate the air interface propagation delay value corresponding to each cell of the carrier aggregation;

The communication unit 1902 is further configured to receive second indication information sent by the network device, where the second indication information is used to indicate the target cell, and the target cell is the cell with the smallest air interface propagation delay value in the carrier aggregation cell district.

The communication unit 1902 is further configured to receive second indication information sent by the network device, the second indication information is used to indicate the target cell, and the target cell is used for receiving the wake-up signal in each of the N cell groups the cell; the second indication information is also used to indicate other cells in each cell group; wherein, the N cell groups are obtained by grouping the carrier aggregated cells, and each cell in the N cell groups The absolute value of the difference between the air interface propagation delay values corresponding to any two cells in the group is less than or equal to a second threshold, the second threshold is determined by the network device, and the N is a number greater than or equal to 1; The wake-up signal received on the target cell is used to control whether the terminal device is activated during the activation period in the cells of the second cell group; the second cell group includes the target cell, and the second cell group is included in the N in a cell group.

In a possible implementation manner, the processing unit 1901 is specifically configured to determine the target cell according to the first indication information or the second indication information.

In the second implementation, the description of each unit is as follows:

The processing unit 1901 is configured to determine a target secondary cell; the target secondary cell is determined by the air interface propagation delay value corresponding to the cell where the terminal device performs carrier aggregation, and the air interface propagation delay value corresponding to the cell is the same as the network device corresponding to the cell The air interface propagation delay value between the terminal equipment;

The communication unit 1902 is configured to receive a wake-up signal on the primary cell; the wake-up signal is used to control whether the terminal device is activated during the activation period in the target secondary cell and the primary cell.

In a possible implementation manner, the communication unit 1902 is further configured to send first indication information to the network device, where the first indication information is used to indicate one or more secondary cells, and the one or more secondary cells include the target Auxiliary district.

The communication unit 1902 is further configured to receive second indication information sent by the network device, where the second indication information is used to indicate the target secondary cell, and the target secondary cell is determined according to the one or more secondary cells.

The communication unit 1902 is further configured to receive second indication information sent by the network device, where the second indication information is used to indicate the target secondary cell.

For example, please refer to FIG. 20 , which is a schematic structural diagram of a network device provided by an embodiment of the present application. As shown in FIG. 20 , the network device 200 includes a processing unit 2001 and a communication unit 2002 . Wherein, the processing unit 2001 is configured to perform data processing. The communication unit 2002 may be integrated with a receiving unit and a sending unit, and in some embodiments, the communication unit 2002 may also be called a transceiver unit. Alternatively, the communication unit 2002 may also be split into a receiving unit and a sending unit. The processing unit 2001 and the communication unit 2002 below are the same, and will not be described in detail below.

In the first implementation, the description of each unit is as follows:

The processing unit 2001 is configured to determine a target cell, the target cell is determined according to the air interface propagation delay value corresponding to the cell where the terminal device performs carrier aggregation, and the air interface propagation delay value corresponding to the carrier aggregation cell corresponds to that of the carrier aggregation cell The air interface propagation delay value between the network device and the terminal device;

The communication unit 2002 is configured to send a wake-up signal on the target cell, where the wake-up signal is used to control whether the terminal device is activated during the activation period in the cell of the carrier aggregation.

In a possible implementation manner, the communication unit 2002 is further configured to receive first indication information sent by the terminal device, where the first indication information is used to indicate one or more cells, and the one or more cells include the target Cells; the one cell is the cell with the smallest air interface propagation delay value among the carrier aggregation cells, and the multiple cells are the cells with relatively small air interface propagation delay values among the carrier aggregation cells.

The communication unit 2002 is further configured to send second indication information to the terminal device, where the second indication information is used to confirm the first indication information; or,

The communication unit 2002 is further configured to send second indication information to the terminal device, where the second indication information is used to indicate the target cell.

In a possible implementation manner, the communication unit 2002 is further configured to receive first indication information sent by the terminal device, where the first indication information is used to indicate that each of the M cell groups is used to receive wake-up calls. The cell of the signal; wherein, the M cell groups are obtained by grouping the cells of the carrier aggregation, and the difference between the air interface propagation delay values corresponding to any two cells in each of the M cell groups The absolute value of the value is less than or equal to a first threshold; the first threshold is determined by the terminal device, or the first threshold is indicated by the network device, and the M is a number greater than or equal to 1.

In a possible implementation manner, the communication unit 2002 is further configured to send second indication information to the terminal device, where the second indication information is used to indicate the target cell.

In a possible implementation manner, the communication unit 2002 is further configured to receive first indication information sent by the terminal device, where the first indication information is used to indicate the air interface propagation delay value corresponding to each cell of the carrier aggregation;

The communication unit 2002 is further configured to send second indication information to the terminal device, where the second indication information is used to indicate the target cell and other cells in each cell group.

In a possible implementation manner, the processing unit 2001 is specifically configured to determine the target cell according to the first indication information.

In the second implementation, the description of each unit is as follows:

The processing unit 2001 is configured to determine a target secondary cell; the target secondary cell is determined by the air interface propagation delay value corresponding to the cell where the carrier aggregation is performed by the terminal device, and the air interface propagation delay value corresponding to the carrier aggregation cell is the carrier aggregation cell The air interface propagation delay value between the corresponding network device and the terminal device;

The communication unit 2002 is configured to send a wake-up signal on the primary cell; the wake-up signal is used to control whether the terminal device is activated during the activation period in the target secondary cell and the primary cell.

In a possible implementation manner, the communication unit 2002 is further configured to receive first indication information sent by the terminal device, where the first indication information is used to indicate one or more secondary cells, and the one or more secondary cells include The target secondary cell.

The communication unit 2002 is further configured to send second indication information to the terminal device, where the second indication information is used to indicate the target secondary cell.

Please refer to FIG. 21 . FIG. 21 is a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication device 210 shown in FIG. 21 may be the above-mentioned terminal device 190 or the above-mentioned network device 200 .

As shown in FIG. 21, the communication device 210 includes at least one processor 2102, which is used to realize the functions of the terminal equipment in the method provided by the embodiment of the present application, such as a terminal equipment or a chip system or a chip, etc., and the chip system can be composed of Chip composition may also include chips and other devices. Alternatively, the function of the network device used to realize the method provided by the embodiment of the present application may be a network device or a chip system or a chip, and the chip system may be composed of a chip, or may include a chip and other devices. The communication device 210 may also include a transceiver 2101 . The transceiver 2101 is used to communicate with other devices or devices through a transmission medium. The processor 2102 uses the transceiver 2101 to send and receive data and/or signaling, and is used to implement the methods in the foregoing method embodiments.

Optionally, the communication device 210 may further include at least one memory 2103 for storing program instructions and/or data. The memory 2103 is coupled to the processor 2102 . The coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 2102 may cooperate with the memory 2103 . Processor 2102 may execute program instructions stored in memory 2103 . At least one of the at least one memory may be included in the processor.

In this embodiment of the present application, a specific connection medium among the transceiver 2101, the processor 2102, and the memory 2103 is not limited. In the embodiment of the present application, in FIG. 21, the memory 2103, the processor 2102, and the transceiver 2101 are connected through the bus 2104. The bus is represented by a thick line in FIG. 21, and the connection mode between other components is only for schematic illustration. , is not limited. The bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 21 , but it does not mean that there is only one bus or one type of bus.

In this embodiment of the application, the processor 2102 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement Or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.

It can be understood that when the communication device 210 is the terminal device 190 described above, the actions performed by the communication unit 1902 may be performed by the transceiver 2101 , and the actions performed by the processing unit 1901 may be performed by the processor 2102 . Alternatively, when the communication device 210 is the above-mentioned network device 200 , the actions performed by the communication unit 2002 may be performed by the transceiver 2101 , and the actions performed by the processing unit 2001 may be performed by the processor 2102 .

The embodiment of the present application also provides a chip. The chip includes: processor and memory. Wherein, the number of processors may be one or more, and the number of memories may be one or more. By reading the instructions and data stored in the memory, the processor can execute the above method and the steps executed in related implementations. Of course, there may also be no memory in the chip.

For example, please refer to FIG. 22 , which is a schematic structural diagram of a module device provided by an embodiment of the present application. The module device 2200 can execute the relevant steps of the terminal device in the foregoing method embodiments; or, the module device 2200 can perform the relevant steps of the network device in the foregoing method embodiments. The module device 2200 includes: a communication module 2201 , a power module 2202 , a storage module 2203 and a chip module 2204 . Among them, the power supply module 2202 is used to provide electric energy for the module equipment; the storage module 2203 is used to store data and instructions; the communication module 2201 is used for internal communication of the module equipment, or for communication between the module equipment and external equipment ; The chip module 2204 can execute the above method and the steps executed in related implementations.

It can be understood that for specific descriptions about the chip module 2204, reference may be made to the methods shown in FIG. 11 to FIG. 18 , or reference may also be made to the device shown in FIG. 19 or FIG. 20 , which will not be described in detail here.

The present application also provides a computer-readable storage medium, where computer codes are stored in the computer-readable storage medium, and when the computer codes are run on the computer, the computer is made to execute the methods of the above-mentioned embodiments.

The present application also provides a computer program product, the computer program product includes computer code or computer program, and when the computer code or computer program is run on a computer, the methods in the above embodiments are executed.

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the above claims.

Claims

A method for receiving a wake-up signal, characterized in that the method comprises:

The terminal device determines the target cell, the target cell is determined according to the air interface propagation delay value corresponding to the cell where the terminal device performs carrier aggregation, and the air interface propagation delay value corresponding to the carrier aggregation cell corresponds to the carrier aggregation cell The air interface propagation delay value between the network device and the terminal device;

The terminal device receives a wake-up signal on the target cell, and the wake-up signal is used to control whether the terminal device is activated during an activation period in the carrier aggregation cell.
The method according to claim 1, wherein before the terminal device determines the target cell, the method further comprises:

The terminal device sends first indication information to the network device, where the first indication information is used to indicate one or more cells, and the one or more cells include the target cell; the one cell is the carrier aggregation Among the cells, the corresponding air interface propagation delay values are the smallest, and the plurality of cells are cells with relatively small air interface propagation delay values among the cells of the carrier aggregation.
The method according to claim 2, further comprising:

The terminal device receives second indication information sent by the network device, where the second indication information is used to confirm the first indication information; or,

The terminal device receives second indication information sent by the network device, where the second indication information is used to indicate the target cell, and the target cell is a cell in the plurality of cells.
The method according to claim 3, wherein the first indication information is also used to indicate the air interface propagation delay value corresponding to each of the multiple cells; the target cell is the multiple cells The corresponding air interface propagation delay value of the cell with the smallest value.
The method according to claim 1, wherein before the terminal device determines the target cell, the method further comprises:

The terminal device sends first indication information to the network device, where the first indication information is used to indicate the cell used to receive the wake-up signal in each of the M cell groups; wherein, the M cell groups are composed of The carrier aggregation cells are grouped to obtain that the absolute value of the difference between the air interface propagation delay values corresponding to any two cells in each of the M cell groups is less than or equal to the first threshold ; The first threshold is determined by the terminal device, or the first threshold is indicated by the network device, and the M is a number greater than or equal to 1.
The method according to claim 5, wherein the first indication information is also used to indicate other cells in each cell group.
The method according to claim 6, further comprising:

The terminal device receives second indication information sent by the network device, where the second indication information is used to indicate the target cell, and the target cell is used according to at least one cell group in the M cell groups. Determination of the cell receiving the wake-up signal; the wake-up signal received on the target cell is used to control whether the terminal device is activated during the activation period in the cells of the first cell group, the first cell group includes The target cell, and the first cell group is included in the at least one cell group.
The method according to any one of claims 5-7, wherein the cell for receiving the wake-up signal is the corresponding air interface propagation delay value in the cell group where the cell for receiving the wake-up signal is located The smallest neighborhood.
The method according to claim 1, wherein before the terminal device determines the target cell, the method further comprises:

The terminal device sends first indication information to the network device, where the first indication information is used to indicate the air interface propagation delay value corresponding to each carrier aggregation cell;

The terminal device receives the second indication information sent by the network device, the second indication information is used to indicate the target cell, and the target cell is the corresponding air interface propagation delay value in the carrier aggregation cell The smallest neighborhood.
The method according to claim 1, wherein before the terminal device determines the target cell, the method further comprises:

The terminal device sends first indication information to the network device, where the first indication information is used to indicate the air interface propagation delay value corresponding to each carrier aggregation cell;

The terminal device receives second indication information sent by the network device, the second indication information is used to indicate the target cell, and the target cell is used in each of the N cell groups for receiving wake-up calls. signal cell; the second indication information is also used to indicate other cells in each cell group; wherein, the N cell groups are obtained by grouping the carrier aggregation cells, and the N cells The absolute value of the difference between the air interface propagation delay values corresponding to any two cells in each cell group in the group is less than or equal to a second threshold, the second threshold is determined by the network device, and the N is a number greater than or equal to 1; the wake-up signal received on the target cell is used to control whether the terminal device is activated during the activation period in the cell of the second cell group; the second cell group includes the The target cell, the second cell group is included in the N cell groups.
The method according to claim 10, wherein the target cell is a cell with the smallest air interface propagation delay value corresponding to the cell group where the target cell is located.
The method according to any one of claims 2-11, wherein the determining the target cell by the terminal device includes:

The terminal device determines the target cell according to the first indication information or the second indication information.
A method for receiving a wake-up signal, characterized in that the method comprises:

The terminal device determines the target secondary cell; the target secondary cell is determined by the air interface propagation delay value corresponding to the cell where the terminal device performs carrier aggregation, and the air interface propagation delay value corresponding to the cell is between the network device corresponding to the cell and The air interface propagation delay value between the terminal devices;

The terminal device receives a wake-up signal on the primary cell; the wake-up signal is used to control whether the terminal device is activated during the activation period in the target secondary cell and the primary cell.
The method according to claim 13, wherein before the terminal device determines the target secondary cell, the method further comprises:

The terminal device sends first indication information to the network device, where the first indication information is used to indicate one or more secondary cells, and the one or more secondary cells include the target secondary cell.
The method according to claim 14, characterized in that the method further comprises:

The terminal device receives second indication information sent by the network device, where the second indication information is used to confirm the first indication information; or,

The terminal device receives second indication information sent by the network device, where the second indication information is used to indicate the target secondary cell, and the target secondary cell is determined according to the one or more secondary cells.
The method according to claim 14 or 15, wherein the determining the target cell by the terminal device comprises:

The terminal device determines the target cell according to the first indication information or the second indication information.
The method according to claim 13, wherein before the terminal device determines the target secondary cell, the method further comprises:

The terminal device sends first indication information to the network device, where the first indication information is used to indicate the air interface propagation delay value corresponding to each carrier aggregation cell;

The terminal device receives second indication information sent by the network device, where the second indication information is used to indicate the target secondary cell.
The method according to any one of claims 14-17, wherein the absolute value of the difference between the air interface propagation delay value corresponding to the target secondary cell and the air interface propagation delay value corresponding to the primary cell is The value is less than or equal to the third threshold.
The method according to any one of claims 14-17, wherein the air interface propagation delay value corresponding to the target secondary cell is greater than or equal to the air interface propagation delay value corresponding to the primary cell.
The method according to claim 18, wherein the air interface propagation delay value corresponding to the target secondary cell is greater than or equal to the air interface propagation delay value corresponding to the primary cell.
A method for sending a wake-up signal, characterized in that the method comprises:

The network device determines the target cell, the target cell is determined according to the air interface propagation delay value corresponding to the cell where the terminal device performs carrier aggregation, and the air interface propagation delay value corresponding to the carrier aggregation cell is the network corresponding to the carrier aggregation cell The air interface propagation delay value between the device and the terminal device;

The network device sends a wake-up signal on the target cell, where the wake-up signal is used to control whether the terminal device is activated during an activation period in the carrier aggregation cell.
The method according to claim 21, wherein before the network device determines the target cell, the method further comprises:

The network device receives first indication information sent by the terminal device, where the first indication information is used to indicate one or more cells, and the one or more cells include the target cell; the one cell is the The cells with the smallest air interface propagation delay value in the carrier aggregation cells, and the multiple cells are the cells with smaller air interface propagation delay values in the carrier aggregation cells.
The method according to claim 22, wherein the target cell is the one cell or one of the plurality of cells;

Before the network device sends a wake-up signal on the target cell, the method further includes:

The network device sends second indication information to the terminal device, where the second indication information is used to confirm the first indication information; or,

The network device sends second indication information to the terminal device, where the second indication information is used to indicate the target cell.
The method according to claim 23, wherein the first indication information is also used to indicate the air interface propagation delay value corresponding to each cell in the plurality of cells; the target cell is the plurality of cells The corresponding air interface propagation delay value of the cell with the smallest value.
The method according to claim 21, wherein before the network device determines the target cell, the method further comprises:

The network device receives first indication information sent by the terminal device, where the first indication information is used to indicate the cell used to receive the wake-up signal in each of the M cell groups; wherein, the M The cell group is obtained by grouping the cells of the carrier aggregation, and the absolute value of the difference between the air interface propagation delay values corresponding to any two cells in each of the M cell groups is less than or equal to A first threshold; the first threshold is determined by the terminal device, or the first threshold is indicated by the network device, and the M is a number greater than or equal to 1.
The method according to claim 25, wherein the first indication information is also used to indicate other cells in each cell group.
The method according to claim 26, wherein the target cell is determined according to the cell used to receive the wake-up signal in at least one of the M cell groups; the wake-up signal received on the target cell The signal is used to control whether the terminal equipment is activated during the activation period in the cells of the first cell group, the first cell group includes the target cell, and the first cell group is included in the at least in a cell group.
The method according to claim 27, wherein before the network device sends a wake-up signal on the target cell, the method further comprises:

The network device sends second indication information to the terminal device, where the second indication information is used to indicate the target cell.
The method according to any one of claims 26-28, wherein the cell used to receive the wake-up signal is the corresponding air interface propagation delay value in the cell group where the cell used to receive the wake-up signal is located The smallest neighborhood.
The method according to claim 22, wherein before the network device determines the target cell, the method further comprises:

The network device receives first indication information sent by the terminal device, where the first indication information is used to indicate an air interface propagation delay value corresponding to each carrier aggregation cell;

The target cell is the cell with the smallest corresponding air interface propagation delay value among the cells of the carrier aggregation;

Before the network device sends a wake-up signal on the target cell, the method further includes:

The network device sends second indication information to the terminal device, where the second indication information is used to indicate the target cell.
The method according to claim 22, wherein before the network device determines the target cell, the method further comprises:

The network device receives first indication information sent by the terminal device, where the first indication information is used to indicate an air interface propagation delay value corresponding to each carrier aggregation cell;

The target cell is a cell used to receive a wake-up signal in each of the N cell groups, the N cell groups are obtained by grouping the carrier aggregated cells, and the N cell groups are The absolute value of the difference between the air interface propagation delay values corresponding to any two cells in each cell group is less than or equal to a second threshold, the second threshold is determined by the network device, and the N is greater than or A number equal to 1; the wake-up signal received on the target cell is used to control whether the terminal device is activated during the activation period in the cells of the second cell group; the target cell is included in the second cell group , the second cell group is included in the N cell groups;

Before the network device sends a wake-up signal on the target cell, the method further includes:

The network device sends second indication information to the terminal device, where the second indication information is used to indicate the target cell and other cells in each cell group.
The method according to claim 30, wherein the target cell is a cell with the smallest air interface propagation delay value corresponding to the cell group where the target cell is located.
The method according to any one of claims 22-31, wherein the network device determining the target cell comprises:

The network device determines the target cell according to the first indication information.
A method for sending a wake-up signal, characterized in that the method comprises:

The network device determines the target secondary cell; the target secondary cell is determined by the air interface propagation delay value corresponding to the cell where the carrier aggregation is performed by the terminal device, and the air interface propagation delay value corresponding to the carrier aggregation cell corresponds to the carrier aggregation cell The air interface propagation delay value between the network device and the terminal device;

The network device sends a wake-up signal on the primary cell; the wake-up signal is used to control whether the terminal device is activated during the activation period in the target secondary cell and the primary cell.
The method according to claim 34, wherein before the network device determines the target secondary cell, the method further comprises:

The network device receives first indication information sent by the terminal device, where the first indication information is used to indicate one or more secondary cells, and the one or more secondary cells include the target secondary cell.
The method according to claim 35, wherein the target secondary cell is determined according to the plurality of secondary cells;

Before the network device sends a wake-up signal on the primary cell, the method further includes:

The network device sends second indication information to the terminal device, where the second indication information is used to confirm the first indication information; or,

The network device sends second indication information to the terminal device, where the second indication information is used to indicate the target secondary cell.
The method according to claim 34 or 35, wherein the determining the target cell by the terminal device includes:

The terminal device determines the target cell according to the first indication information.
The method according to claim 34, wherein before the network device determines the target secondary cell, the method further comprises:

The network device receives first indication information sent by the terminal device, where the first indication information is used to indicate an air interface propagation delay value corresponding to each carrier aggregation cell;

The network device sends second indication information to the terminal device, where the second indication information is used to indicate the target secondary cell.
The method according to any one of claims 35-38, wherein the absolute value of the difference between the air interface propagation delay value corresponding to the target secondary cell and the air interface propagation delay value corresponding to the primary cell The value is less than or equal to the third threshold.
The method according to any one of claims 35-38, wherein the air interface propagation delay value corresponding to the target secondary cell is greater than or equal to the air interface propagation delay value corresponding to the primary cell.
The method according to claim 39, wherein the air interface propagation delay value corresponding to the target secondary cell is greater than or equal to the air interface propagation delay value corresponding to the primary cell.
A terminal device, characterized in that it includes:

A processing unit, configured to determine a target cell, the target cell is determined according to the air interface propagation delay value corresponding to the cell where the terminal device performs carrier aggregation, and the air interface propagation delay value corresponding to the carrier aggregation cell is the carrier aggregation The air interface propagation delay value between the network device corresponding to the cell and the terminal device;

A communication unit, configured to receive a wake-up signal on the target cell, where the wake-up signal is used to control whether the terminal device is activated during an activation period in the cell of the carrier aggregation.
A terminal device, characterized in that it includes:

A processing unit, configured to determine a target secondary cell; the target secondary cell is determined by an air interface propagation delay value corresponding to a cell where the carrier aggregation is performed by the terminal device, and the air interface propagation delay value corresponding to the carrier aggregation cell is the The air interface propagation delay value between the network device corresponding to the carrier aggregation cell and the terminal device;

A communication unit, configured to receive a wake-up signal on the primary cell, where the wake-up signal is used to control whether the terminal device is activated during the activation period in the target secondary cell and the primary cell.
A network device, characterized in that it includes:

A processing unit, configured to determine a target cell, the target cell is determined according to the air interface propagation delay value corresponding to the cell where the terminal device performs carrier aggregation, and the air interface propagation delay value corresponding to the carrier aggregation cell is the carrier aggregation cell The air interface propagation delay value between the corresponding network device and the terminal device;

A communication unit, configured to send a wake-up signal on the target cell, where the wake-up signal is used to control whether the terminal device is activated during the activation period in the cell of the carrier aggregation.
A network device, characterized in that it includes:

A processing unit, configured to determine a target secondary cell; the target secondary cell is determined by the air interface propagation delay value corresponding to the cell where the terminal device performs carrier aggregation, and the air interface propagation delay value corresponding to the carrier aggregation cell is the carrier aggregation The air interface propagation delay value between the network device corresponding to the cell and the terminal device;

A communication unit, configured to send a wake-up signal on the primary cell; the wake-up signal is used to control whether the terminal device is activated during the activation period in the target secondary cell and the primary cell.
A terminal device, characterized in that it includes: a processor and a transceiver;

The transceiver is configured to receive signals or send signals; the processor is configured to execute computer-executable instructions stored in a memory, so that the terminal device executes the method according to any one of claims 1-20.
A network device, characterized by comprising: a processor and a transceiver;

The transceiver is used to receive signals or send signals; the processor is used to execute computer-executable instructions stored in a memory, so that the network device executes the method according to any one of claims 21-41.
A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, and when the computer program is run on one or more processors, any of claims 1-20 A method according to one or a method according to any one of claims 21-41 is performed.
A chip, characterized in that it includes a logic circuit and an interface, the logic circuit is coupled to the interface; the interface is used to input and/or output code instructions, and the logic circuit is used to execute the code instructions to Causing the method of any one of claims 1-20 to be performed, or causing the method of any one of claims 21-41 to be performed.