Communication method and device

Abstract

The invention discloses a communication method and device, relates to the technical field of mobile communication, and is used for providing a secondary cell dormancy indication scheme based on single DCI (Downlink Control Information) so as to reduce the power consumption of terminal equipment. The method comprises the step of indicating that an activated BWP of a first secondary cell is a first dormant BWP through first indication information in single DCI so as to indicate the secondary cell entering a dormant state. In addition, N scheduled cells can be indicated through second indication information of the single DCI, and the N scheduled cells do not comprise the first auxiliary cell, so that the auxiliary cell entering the dormant state can be indicated through the single DCI, and the scheduled cells can be indicated through the same single DCI. In addition, when the N scheduled cells comprise the first auxiliary cell, data transmission can be performed in the first auxiliary cell preferentially, that is, the first auxiliary cell does not sleep.

Description

Technical Field

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

[0002] In the spectrum resources below 6 gigahertz (GHz), large-bandwidth continuous spectrum resources are very scarce, that is, the bandwidth of a single carrier is limited. Carrier aggregation (CA) is a key technology to solve the problem of limited bandwidth of a single carrier. It aggregates two or more component carriers (CC) together to support a larger transmission bandwidth. In the CA scenario, there can be multiple cells providing services to a terminal device, that is, the terminal device has multiple service cells. Among them, the multiple service cells of the terminal device may include a primary cell (PCell) and one or more secondary cells (SCell). Single downlink control information (DCI) (single DCI) can support scheduling data transmission of multiple cells.

[0003] Currently, how to implement secondary cell dormancy in a single DCI scheduling scenario to reduce power consumption of terminal equipment is a technical problem that needs to be solved. Summary of the invention

[0004] The present application provides a communication method and apparatus for providing a secondary cell sleep indication solution based on single DCI to reduce the power consumption of terminal equipment.

[0005] In a first aspect, a communication method is provided. The method may be implemented by a first communication device. The first communication device may be a terminal device or a component of a terminal device. Among them, the component in the present application may include at least one of a chip, a chip system, a processor, a transceiver, a processing unit, or a transceiver unit. Taking the execution subject as the first communication device as an example, the method can be implemented by the following steps: the first communication device receives a first DCI. Among them, the format of the first DCI is a DCI format that supports scheduling data of multiple cells, that is, the first DCI is a single DCI. The first DCI may include first indication information to indicate that the activated BWP on the first secondary cell is the first dormant BWP. The first communication device may also set the activated BWP of the first secondary cell to the first dormant BWP according to the first indication information.

[0006] Based on the method shown in the first aspect, the single DCI may carry the first indication information, and the first communication device may set the activated BWP of the first secondary cell to the first dormant BWP according to the first indication information, that is, implement dormancy of the first secondary cell to reduce power consumption.

[0007] In a second aspect, a communication method is provided. The method may be implemented by a second communication device. The second communication device may be a network device or a component in a network device. Taking the execution subject as the second communication device as an example, the method may be implemented by the following steps: the second communication device determines a first downlink control information DCI, the format of the first DCI is a DCI format that supports scheduling data of multiple cells, and the first DCI includes a first indication information, and the first indication information is used to indicate that the activated BWP on the first secondary cell is the first dormant BWP. The second communication device may also send the first DCI and set the activated BWP of the first secondary cell to the first dormant BWP.

[0008] Based on the method shown in the first aspect or the second aspect, the first DCI also includes second indication information, and the second indication information is used to indicate N scheduled cells, where N is a positive integer. The scheduled cells include primary cells and / or secondary cells. As an example of an implementation, the second indication information can be used to indicate a combination of scheduled cells from a cell combination table of the first cell set, for example, the second indication information is used to indicate an entry in the table, and the combination corresponding to the entry includes the scheduled cells. For example, the scheduled cells are only primary cells.

[0009] Based on the method shown in the first aspect or the second aspect, the N scheduled cells do not include the first secondary cell.

[0010] Based on this implementation, the scheduled cell and the dormant cell do not overlap. If the first communication device finds that the scheduled cell indicated by the second indication information in the singleDCI overlaps with the dormant cell indicated by the first indication information, the first indication information may be discarded or not processed, or the first DCI may be discarded or not processed. Alternatively, when there is a conflict between the scheduled cell and the dormant cell, the dormant indication shall prevail.

[0011] Based on the method shown in the first aspect or the second aspect, the first DCI also includes third indication information for indicating the first cell set, and the third indication information indicates that N scheduled cells belong to the first cell set. Wherein, when the first cell set includes a primary cell, N=1, and the scheduled cell is a primary cell, that is, the first communication device can set the first secondary cell as a dormant secondary cell according to the single DCI only when the scheduled cell indicated by the single DCI is the primary cell. In the present application, the first cell set can be the maximum set of scheduled cells, that is, each time the first DCI is scheduled, the candidate scheduled cells can be one or more cells in the first cell set.

[0012] Based on the method shown in the first aspect or the second aspect, the N scheduled cells also include a second secondary cell, wherein the first communication device and / or the second communication device can transmit data through the second secondary cell. For example, the N scheduled cells also include a second secondary cell, or include a primary cell and a second secondary cell, wherein the second secondary cell is different from the first secondary cell, and the first indication information is not used to indicate that the activated BWP of the second secondary cell is set to a dormant BWP. That is, when the scheduled cell indicated by the single DCI includes at least one secondary cell other than the first secondary cell, the first communication device can set the first secondary cell to a dormant secondary cell according to the single DCI.

[0013] Based on the method shown in the first aspect or the second aspect, the N scheduled cells may include the first secondary cell. The first communication device may perform data transmission on the first secondary cell according to the second indication information, and correspondingly, the second communication device may perform data transmission on the first secondary cell. Based on this implementation, the scheduled cells and the dormant cells may overlap, and when there is an overlap, the dormant indication shall prevail.

[0014] As an example, when a row of entries in the scheduled cell combination table does not contain only the primary cell, that is, all entries contain at least one secondary cell, the second communication device may indicate an entry containing the primary cell and at least one secondary cell through the second indication information, that is, the scheduled cells include the primary cell and at least one secondary cell. At this time, only the primary cell may be scheduled for data transmission without scheduling the secondary cell. Optionally, the first communication device may determine that the secondary cell enters a dormant state according to the first indication information. If the first indication information indicates that a secondary cell belonging to the same entry as the primary cell enters a dormant state, the first communication device may cause the secondary cell to enter a dormant state. If the secondary cell belonging to the same entry as the primary cell is not indicated to enter a dormant state, the first communication device may determine that the secondary cell is not scheduled and does not enter a dormant state.

[0015] As another example, when a row of entries in the scheduled cell combination table does not contain only the main cell, the second communication device may indicate an entry containing the main cell and at least one secondary cell through the second indication information, that is, the scheduled cells include the main cell and at least one secondary cell. At this time, the main cell can be scheduled for data transmission, and the secondary cell that has not entered the dormant state can be optionally scheduled for data transmission. For example, the first communication device may determine whether the secondary cell belonging to the same entry as the main cell enters the dormant state based on the first indication information. Among them, if the first indication information indicates that the secondary cell belonging to the same entry as the main cell enters the dormant state, the first communication device may cause the secondary cell to enter the dormant state, and these secondary cells are not scheduled. If the secondary cell belonging to the same entry as the main cell is not indicated to enter the dormant state, the first communication device may determine that the secondary cell has not entered the dormant state, and the secondary cell may be scheduled for data transmission.

[0016] Based on this implementation, when the scheduled secondary cell includes both the first secondary cell and the second secondary cell, the first communication device and the second communication device can perform data transmission through the second secondary cell to improve data transmission performance. That is, there may be partial overlap between the scheduled cell and the dormant cell. For example, when the scheduled cell combination table does not include an entry for scheduling only the second secondary cell, you can choose to activate the entry including the first secondary cell and the second secondary cell, and configure the first secondary cell to a dormant state, so that the first communication device transmits only through the second secondary cell.

[0017] Based on the method shown in the first aspect or the second aspect, the first DCI also includes second indication information and third indication information, the third indication information is used to indicate the first cell set, when the first cell set does not include the primary cell, the scheduled cell indicated by the second indication information is an empty set. As an example of an implementation, the second indication information can be used to indicate a combination of scheduled cells from a cell combination table of the first cell set, for example, the second indication information is used to indicate an entry in the table, the cells in the entry are an empty set, or the entry does not include cells in the first cell set.

[0018] Based on the method shown in the first aspect or the second aspect, the first indication information is specifically used to indicate the index of the first SCell, or to indicate the index of one or more groups of dormant cells, where the one or more groups of dormant cells include the first SCell.

[0019] Based on the method shown in the first aspect or the second aspect, the first DCI may also include a frequency resource allocation type field whose value is a set value. In this case, the first indication information may include one or more bits, each bit being used to indicate whether an SCell enters a dormant state. Optionally, the first DCI does not include the second indication information at this time, that is, it does not include information used to indicate the scheduled cell, or the first DCI includes the second indication information, but the second indication information does not indicate or is not effective. In other words, each bit is used to indicate whether an SCell is the first SCell. Optionally, each of all the bits contained in the first indication information corresponds to an SCell in the scheduled cell set, or each of all the bits contained in the first indication information corresponds to an SCell in all configured SCells, without specific limitation.

[0020] Based on the method shown in the first aspect or the second aspect, the frequency domain resource allocation type field whose value is a set value includes the FDRA field corresponding to the SCell in the scheduled cell set. The resource allocation type field whose value is a set value can be the FDRA field corresponding to all cells. In addition, if the cell set indicated by the scheduled cell set indication field in the first DCI includes PCell, the FDRA fields corresponding to other SCells in the scheduled cell set except PCell are all set to special values, that is, the resource allocation type field whose value is a set value at this time can be the FDRA field corresponding to other SCells except PCell.

[0021] Based on the method shown in the first aspect or the second aspect, the one or more bits occupy one or more bits in the following fields of the first DCI: modulation and coding method field; new data indication field; redundant version field; hybrid automatic repeat request process number field; antenna port field; demodulation reference signal sequence initialization field. Further, the field corresponds to the first scheduled cell indicated by the first DCI, or corresponds to the first cell in the scheduled cell set indicated by the first DCI.

[0022] In a third aspect, a communication device is provided. The device can implement the method described in any possible design of the first aspect or the second aspect. The device has the functions of the network device or the first terminal device. The device is, for example, a terminal device, or a functional module in a terminal device, or a network device or a functional module in a network device.

[0023] In an optional implementation, the device may include a module corresponding to the method / operation / step / action described in the first aspect or the second aspect, and the module may be a hardware circuit, or software, or a combination of a hardware circuit and software. In an optional implementation, the device includes a processing unit (sometimes also referred to as a processing module) and a communication unit (sometimes also referred to as a transceiver module, a communication module, etc.). The transceiver unit can implement a sending function and a receiving function. When the transceiver unit implements the sending function, it may be referred to as a sending unit (sometimes also referred to as a sending module), and when the transceiver unit implements the receiving function, it may be referred to as a receiving unit (sometimes also referred to as a receiving module). The sending unit and the receiving unit may be the same functional module, which is called a transceiver unit, and the functional module can implement a sending function and a receiving function; or, the sending unit and the receiving unit may be different functional modules, and the transceiver unit is a general term for these functional modules.

[0024] Exemplarily, when the device is used to execute the method described in the first aspect or the second aspect, the device may include a communication unit and a processing unit.

[0025] In a fourth aspect, an embodiment of the present application also provides a communication device, comprising a processor for executing a computer program (or computer executable instructions) stored in a memory, so that when the computer program (or computer executable instructions) is executed, the device performs a method as in the first aspect or the second aspect and its various possible implementations.

[0026] In one possible implementation, the processor and the memory are integrated together;

[0027] In another possible implementation, the memory is located outside the communication device.

[0028] The communication device also includes a communication interface, which is used for the communication device to communicate with other devices, such as sending or receiving data and / or signals. Exemplarily, the communication interface can be a transceiver, circuit, bus, module or other type of communication interface.

[0029] In a fifth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium is used to store a computer program or instruction, which, when executed, enables the method shown in the first aspect or the second aspect and any possible implementation thereof to be implemented.

[0030] According to a sixth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the method shown in the first aspect or the second aspect and any possible implementation thereof to be implemented.

[0031] In the seventh aspect, an embodiment of the present application also provides a communication device for executing the methods in the above-mentioned first aspect or second aspect and various possible implementations thereof.

[0032] In the eighth aspect, a chip system is provided, which includes a logic circuit (or understood as, the chip system includes a processor, the processor may include a logic circuit, etc.), and may also include an input and output interface. The input and output interface can be used to input messages, and may also be used to output messages. The input and output interfaces may be the same interface, that is, the same interface can realize both the sending function and the receiving function; or, the input and output interface includes an input interface and an output interface, the input interface is used to realize the receiving function, that is, for receiving messages; the output interface is used to realize the sending function, that is, for sending messages. The logic circuit can be used to perform operations other than the sending and receiving functions in the method shown in the first aspect or the second aspect and any possible implementation thereof; the logic circuit can also be used to transmit messages to the input and output interface, or to receive messages from other communication devices from the input and output interface. The chip system can be used to implement the method shown in the first aspect or the second aspect and any possible implementation thereof. The chip system can be composed of chips, or it can include chips and other discrete devices.

[0033] Optionally, the chip system may further include a memory, which may be used to store instructions, and the logic circuit may call the instructions stored in the memory to implement corresponding functions.

[0034] In the ninth aspect, a communication system is provided, which may include at least one terminal device and a network device, any terminal device may be used to execute the method shown in the above-mentioned first aspect and any possible implementation thereof, and the network device may be used to execute the method shown in the above-mentioned second aspect and any possible implementation thereof.

[0035] The technical effects brought about by the second to ninth aspects above can be found in the description of the first aspect above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the architecture of a wireless communication system provided in an embodiment of the present application;

[0037] Figure 2 A flow chart of a communication method provided in an embodiment of the present application;

[0038] Figure 3 A schematic diagram of the structure of a first DCI provided in an embodiment of the present application;

[0039] Figure 4 A schematic diagram of the structure of another first DCI provided in an embodiment of the present application;

[0040] Figure 5 A schematic diagram of the structure of another first DCI provided in an embodiment of the present application;

[0041] Figure 6 A schematic diagram of the structure of another first DCI provided in an embodiment of the present application;

[0042] Figure 7 A schematic diagram of the structure of another first DCI provided in an embodiment of the present application;

[0043] Figure 8 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0044] Fig. 9 A schematic diagram of the structure of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] Figure 1 FIG. 1 is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application. Figure 1 As shown, the communication system includes a wireless access network 100 and a core network 200. Optionally, the communication system 1000 may also include the Internet 300. The wireless access network 100 may include at least one wireless access network device (such as Figure 1 110a and 110b), and may further include at least one terminal (such as Figure 1 120a-120j in the figure). The terminal is connected to the wireless access network device by wireless means, and the wireless access network device is connected to the core network by wireless or wired means. The core network device and the wireless access network device can be independent and different physical devices, or the functions of the core network device and the logical functions of the wireless access network device can be integrated on the same physical device, or part of the functions of the core network device and part of the functions of the wireless access network device can be integrated on one physical device. Terminals and wireless access network devices can be connected to each other by wired or wireless means. Figure 1 This is just a schematic diagram. The communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices. Figure 1 Not drawn in.

[0046] Radio access network equipment is the access equipment that the terminal uses to access the communication system wirelessly. Radio access network equipment can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in the fifth generation (5G) mobile communication system, a next generation base station in the sixth generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system; it can also be a module or unit that completes some functions of a base station, for example, a centralized unit (CU) or a distributed unit (DU). The CU here completes the functions of the base station's radio resource control protocol and packet data convergence protocol (PDCP), and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the base station's radio link control layer and medium access control (MAC) layer, and can also complete some or all of the physical layer functions. For detailed descriptions of the above-mentioned protocol layers, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP). The wireless access network equipment can be a macro base station (such as Figure 1 110a), or a micro base station or an indoor station (such as Figure 1 110b), may also be a relay node or a donor node, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device. For ease of description, network device is used as the abbreviation of wireless access network device, and base station is used as an example of wireless access network device.

[0047] A terminal is a device with wireless transceiver function, which can send signals to a base station or receive signals from a base station. A terminal can also be called a terminal device, user equipment (UE), a mobile station, a mobile terminal, etc. The terminal can be widely used in various scenarios, for example, device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, automatic driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal.

[0048] Base stations and terminals can be fixed or movable. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on airplanes, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0049] The roles of the base station and the terminal can be relative, for example, Figure 1 The helicopter or drone 120i in the figure can be configured as a mobile base station. For the terminal 120j that accesses the wireless access network 100 through 120i, the terminal 120i is a base station; but for the base station 110a, 120i is a terminal, that is, 110a and 120i communicate through the wireless air interface protocol. Of course, 110a and 120i can also communicate through the interface protocol between base stations. In this case, relative to 110a, 120i is also a base station. Therefore, base stations and terminals can be collectively referred to as communication devices. Figure 1 110a and 110b in the figure may be referred to as communication devices having base station functions. Figure 1 120a-120j in the figure can be called communication devices with terminal functions.

[0050] Base stations and terminals, base stations and base stations, and terminals and terminals can communicate through authorized spectrum, unauthorized spectrum, or both; they can communicate through spectrum below 6 GHz, spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0051] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem including the base station function. The control subsystem including the base station function here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or a modem) in the terminal, or by a device including the terminal function.

[0052] In this application, the base station sends a downlink signal or downlink information to the terminal, and the downlink information is carried on the downlink channel; the terminal sends an uplink signal or uplink information to the base station, and the uplink information is carried on the uplink channel. In order to communicate with the base station, the terminal needs to establish a wireless connection with the cell controlled by the base station. The cell with which the terminal has established a wireless connection is called the service cell of the terminal. When the terminal communicates with the service cell, it will also be interfered by signals from neighboring cells.

[0053] It can be understood that in the embodiments of the present application, the physical downlink shared channel (PDSCH), the physical downlink control channel (PDCCH) and the physical uplink shared channel (PUSCH) are merely examples of downlink data channels, downlink control channels and uplink data channels, respectively. In different systems and different scenarios, data channels and control channels may have different names, and the embodiments of the present application do not limit this.

[0054] In the CA scenario, there may be multiple cells providing services for the UE, that is, the terminal device has multiple serving cells or carriers. In this application, it can be considered that the carrier and the cell are equivalent and can be replaced with each other. Exemplarily, the multiple serving cells of the terminal device include a PCell and one or more SCells.

[0055] Currently, 3GPP proposes to use a single DCI to schedule PDSCH or PUSCH on multiple carriers, which can reduce the control channel overhead compared to each DCI that can only schedule PDSCH or PUSCH on one carrier. This single DCI is usually called single DCI, or multi-carrier scheduling DCI, or multi-cell scheduling DCI. A single DCI can be used to schedule data channels of one or more carriers, or to support scheduling data channels of multiple cells. Among them, the single DCI format for scheduling PUSCH can be DCI format 0_3, and the single DCI format for scheduling PDSCH can be DCI format 1_3. In this application, "carrier" and "cell" can be used interchangeably in scenarios where there is no logical conflict.

[0056] The DCI opposite to single DCI is called legacy DCI. Based on the existing CA mechanism, if the base station wants to schedule the UE to transmit PDSCH or PUSCH on multiple carriers simultaneously, it needs to send multiple legacy DCIs for scheduling, wherein each carrier is scheduled by one legacy DCI, that is, the legacy DCI can only schedule the data of one cell. Among them, when the self-carrier scheduling method is used, the legacy DCI for scheduling PDSCH or PUSCH on one carrier is also sent on the carrier, and when the cross-carrier scheduling method is used, the legacy DCI for scheduling PDSCH or PUSCH on one carrier can be sent on another carrier, thereby achieving the effect that multiple DCIs for scheduling multiple carriers are sent only on one carrier. Exemplarily, the DCI format corresponding to the legacy DCI is DCI format 0_0, DCI format 1_0, DCI format 0_1, DCI format 1_1, DCIformat 0_2, or DCI format 1_2.

[0057] Based on traditional DCI, the base station can instruct the SCell to enter the dormant state through DCI. However, with the application of single DCI, the dormancy indication of the SCell will be incompatible with the single DCI, which will cause the base station to use the single DCI to be unable to indicate to the UE which SCells can enter the dormancy state through the SCell dormancy indication field, making it impossible for the UE to save energy and reduce power consumption, affecting the terminal's battery life.

[0058] When a SCell is indicated as dormancy, the UE on the SCell will switch from the currently activated downlink BWP to the dormant BWP. On the dormant BWP, the UE does not need to monitor the PDCCH, receive the PDSCH, or report channel status information (CSI). The SCell dormancy indication field can be used to indicate whether one or more SCells have entered a dormant state. Specifically, the SCell dormancy indication field can be used to indicate that one or more groups of SCells have entered a dormant state, and / or, to indicate that one or more groups of SCells have entered a non-dormant state.

[0059] In order to allow the UE to determine whether one or more SCells have entered the sleep state through the SCell sleep indication field, when the traditional DCI is used to indicate that the SCell enters the sleep state, the traditional DCI needs to meet some conditions. For example, when the format of the traditional DCI is DCIformat 0_1 ​​or DCI format1_1, the traditional DCI does not contain a carrier indication field (CIF), that is, only self-scheduling is supported. Or, the value of the CIF field of the traditional DCI is set to 0, that is, only self-scheduling is performed. In other words, when the UE recognizes that the above-mentioned traditional DCI does not contain a CIF field or the value of the CIF field is 0, it will trigger the UE to determine which SCells enter the sleep state according to the SCell sleep indication field. However, the single DCI does not contain a CIF field. Therefore, it is impossible to use the mechanism in the traditional DCI to trigger the UE to determine the SCell that needs to enter the sleep state according to the SCell sleep indication field, resulting in the UE being unable to accurately identify the SCell that needs to enter the sleep state. For example, it may cause the UE to fail to sleep the SCell according to the sleep indication, thereby increasing the UE energy consumption. For example, it may cause the UE to be unable to transmit data according to the scheduling of the single DCI.

[0060] The present application provides a communication method, which can propose a cell sleep indication scheme compatible with single DCI, improve the reliability of the scheme based on single DCI indicating SCell sleep, so that the terminal device can reduce power consumption to improve the endurance of the terminal device. The execution subject of the method can be a terminal device or a module applied to the terminal device, and a network device or a module applied to the network device. Figure 2 This method is introduced. Figure 2 In the example, the execution subjects are UE and base station.

[0061] S101: The base station determines a first DCI.

[0062] The format of the first DCI is a DCI format that supports scheduling data of multiple cells, or in other words, the first DCI is a singleDCI. For example, the format of the first DCI may be DCI format 0_3 or DCI format 1_3.

[0063] The first DCI includes first indication information, and the first indication information can be used to indicate that the activated BWP on the first SCell is the first dormant BWP. The first dormant BWP can be a dormant BWP configured for the first SCell, and when the first dormant BWP is an activated BWP, the first SCell enters a dormant state. In the present application, setting the activated BWP of the SCell to the dormant BWP can also be referred to as: switching the SCell to an activated state.

[0064] Optionally, the first indication information may include an index of the first dormant BWP. In addition, the first indication information may also only indicate that the first SCell enters a dormant state, and the UE determines the index of the first dormant BWP according to the configuration. For example, the index of the dormant BWP of any SCell may be indicated by the base station through a radio resource control (RRC) message, a MAC control element (MAC-control element, MAC CE), a DCI or other message, or may be pre-configured or pre-defined in the UE. In this case, when the first indication information indicates that the first SCell enters a dormant state, the UE and / or the base station may query the index of the first dormant BWP corresponding to the first SCell according to the index configuration of the dormant BWP.

[0065] It can be understood that the first SCell in the present application may be one SCell in a group of SCells, the group of SCells may include one or more SCells, and the first indication information may instruct all SCells in the group of SCells to enter a sleep state.

[0066] For example, the first indication information may be used to indicate that one or more groups of SCells enter a sleep state; or, the first indication information may be used to indicate that one or more groups of SCells enter a non-sleep state; or, the first indication information may be used to indicate that one or more groups of SCells enter a sleep state and indicate that another group or another group of SCells enter a non-sleep state. If the first indication information is used to indicate an SCell that enters a sleep state, the SCell indicated by the first indication information is the first SCell. In addition, if the first indication information is used to indicate an SCell among multiple SCells that enters a non-sleep state, the first SCell may include other SCells among the multiple SCells other than the SCell indicated by the first indication information.

[0067] The following will introduce the implementation method of the first DCI and the first indication information in combination with the embodiments. Here, only the overall process of the solution is described and will not be expanded for the time being.

[0068] S102: The base station sends a first DCI. Correspondingly, the UE receives the first DCI.

[0069] Optionally, the base station may send the first DCI through the primary scheduling cell. For example, the primary scheduling cell may be a PCell or an SCell. Optionally, a PCell or another SCell other than the first SCell may be selected as the primary scheduling cell for the first DCI, that is, the first SCell is not the primary scheduling cell, to avoid a conflict between the scheduling of the first DCI and the sleep indicated by the first DCI.

[0070] Taking the PCell as the main scheduling cell as an example, the base station can also configure the main scheduling cell of one or more cell sets as PCell through RRC parameters. Correspondingly, the UE can monitor the first DCI on the PCell. Optionally, the scheduled cell set indication field of the first DCI can indicate the scheduled cell set. Optionally, the scheduled cell set is a cell set in one or more cell sets in which the main scheduling cell is configured as PCell.

[0071] S103: The UE sets the activated BWP of the first SCell as the first dormant BWP according to the first indication information.

[0072] In an exemplary implementation of S103, for the first SCell, the UE may set the first dormant BWP of the first SCell as a downlink activated BWP, that is, to put the first SCell into a dormant state.

[0073] In addition, the base station may also set the activation BWP of the first SCell of the UE to the first dormant BWP. It can be understood that the action of the base station setting the activation BWP of the first SCell can be performed before or after S102, and this application does not specifically limit it. For example, after deciding that the first SCell of the UE is dormant, the base station may first determine and / or send the first DCI, and then set the activation BWP of the first SCell to the first dormant BWP. It may also, after deciding that the first SCell is dormant, first set the activation BWP of the first SCell to the first dormant BWP, and then determine and / or send the first DCI. It may also simultaneously set the activation BWP of the first SCell to the first dormant BWP and determine and / or send the first DCI.

[0074] based on Figure 3The method is that the first DCI may carry the first indication information, and the first communication device may set the activation BWP of the first SCell to the first dormant BWP according to the first indication information, that is, implement the dormancy of the first SCell to reduce power consumption.

[0075] Below, the implementation method of the first DCI in this application is introduced in conjunction with the embodiments.

[0076] Optionally, in the first DCI, the first indication information is used to indicate that one or more groups of SCells enter a sleep state. In this case, the first indication information may be an SCell sleep indication field, or other fields in the first DCI may be multiplexed. The following will introduce the implementation method when the first indication information is an SCell sleep indication field in combination with method 1. In addition, the following will introduce the implementation method when the first indication information multiplexes other fields in the first DCI in combination with method 2.

[0077] Mode 1, the first indication information is the SCell sleep indication field, which is used to indicate that one or more SCell sleep groups enter the sleep state and / or, to indicate that one or more SCell sleep groups enter the non-sleep state. In other words, the first indication information includes one or more SCell groups configured by the base station, each configured SCell group corresponds to a bit in the SCell sleep indication field, and the configured SCell group index corresponds to the bits in the SCell sleep indication field in ascending order from the most significant bit (MSB) to the least significant bit (LSB). Among them, each bit in the SCell sleep indication field can be used to indicate that the corresponding SCell group enters the sleep state or enters the non-sleep state. Mode 1 can also be called a group indication mode.

[0078] In method 1, the configured SCell group is equivalent to the SCell dormancy group, or is equivalent to the dormancy group. Among them, the configured SCell group can be predefined, or can be indicated by the base station to the UE, or can be indicated by the UE to the base station. In this application, predefinition includes but is not limited to predefinition through protocol, predefinition through pre-stored configuration information, etc. The way in which the base station indicates to the UE includes but is not limited to indicating to the UE through information, messages or signaling such as RRC messages, MAC CE or DCI. The way in which the UE indicates to the base station includes but is not limited to indicating to the base station through uplink information, messages or signaling such as UCI.

[0079] For example, when configuring an SCell sleep group through an RRC message, the RRC message may carry a sleep group by active time (dormancyGroupWithinActiveTime) parameter to indicate the SCell sleep group identifier (DormancyGroupID) corresponding to each SCell, wherein SCells with the same DormancyGroupID belong to the same configured SCell group, that is, the SCell sleep group identifier can be used to identify the configured SCell group to which each SCell belongs. Accordingly, in the first DCI, the first indication information can be used to indicate whether each SCell sleep group enters a sleep state, for example, the first indication information may include the same number of bits as the number of SCell sleep groups, each bit being used to indicate whether a sleep group enters a sleep state or a non-sleep state.

[0080] Exemplarily, the sleep group indication by active time can be carried in an RRC message, for example, as a configuration of the SCell. The RRC message may also carry a sleep BWP identifier (dormantBWP-Id) indication, which is used to indicate the index of the sleep BWP on each SCell, that is, to indicate the sleep BWP of the SCell. When the SCell enters the sleep state, the UE does not need to monitor the physical downlink control channel PDCCH on the sleep BWP, does not receive the physical downlink shared PDSCH, etc. In addition, the RRC message may also carry the first BWP identifier (firstWithinActiveTimeBWP-Id) parameter within the active time, which is used to configure the BWP index when switching from the sleep BWP back to the non-sleep BWP on the SCell.

[0081] As an example, when a bit of the SCell sleep indication field indicates "1", indicating that the SCell in the SCell sleep group enters a non-sleep state, for the activated SCell in the corresponding SCell group, the activated BWP is switched to or maintained at the activated downlink bandwidth part (active DL BWP); for example, if the current (current) downlink activated BWP is a sleep BWP, the UE sets the downlink BWP configured by the parameter firstWithinActiveTimeBWP-Id to the active DL BWP, that is, switches from the sleep BWP to the BWP corresponding to firstWithinActiveTimeBWP-Id; if the current downlink activated BWP is not a sleep BWP, the active DL BWP is the currently activated BWP, that is, BWP switching is not required, that is, the UE continues to work in the current DL BWP. In addition, when a bit in the SCell sleep indication field indicates "0", it means that the SCell in the SCell sleep group enters the sleep state. For the activated SCell in the corresponding SCell group, if the currently activated downlink BWP is a non-sleep BWP, the UE sets the sleep BWP of the SCell to the activated BWP; if the currently activated downlink BWP of the SCell is a sleep BWP, BWP switching may not be performed.

[0082] For example, Figure 3 For example, SCell#1 corresponds to DormancyGroupID=0, indicating that SCell#1 belongs to SCell sleep group #0, and SCell#2 and SCell#3 both correspond to DormancyGroupID=1, indicating that SCell#2 and SCell#3 belong to SCell sleep group #1. Since two sleep groups are configured, the bit width of the SCell sleep indication field is 2 bits, of which 1 bit of the MSB corresponds to sleep group #0, and 1 bit of the LSB corresponds to sleep group #1. The MSB bit is "1" indicating that all activated SCells contained in sleep group #0 are switched to or remain in the active DL BWP, that is, indicating that the SCells in the sleep group enter the non-sleep state. If the current downlink active BWP of the SCell is the sleep BWP, it is switched to the downlink BWP configured by the parameter firstWithinActiveTimeBWP-Id; if the current downlink active BWP of the SCell is not the sleep BWP, the active DL BWP is the current downlink active BWP, that is, BWP switching is not required, that is, the UE continues to work in the current DL BWP.

[0083] In addition, Figure 3As shown, the LSB bit is "0" indicating that all activated SCells included in the dormant group #1 are switched to the downlink BWP configured by the parameter dormantBWP-Id. It can be understood that SCell#x in this application indicates the SCell with index x.

[0084] It can be seen that in mode 1, the first indication information may include one or more bits, and each bit corresponds to an SCell sleep group. Exemplarily, the value of each bit is 0 (or 1) indicating that the corresponding SCell sleep group enters the sleep state, and the value of each bit is 1 (or 0) indicating that the corresponding SCell sleep group enters the non-sleep state. Optionally, the SCell of the UE can be divided into k groups, and accordingly, the first indication information can occupy k bits, for example, k = 5.

[0085] As an example, when the number of SCell sleep groups is 2, that is, the SCell sleep groups are SCell sleep group #0 and SCell sleep group #1, the first indication information includes two bits. Among them, when the first indication information includes bit 01, it can indicate that SCell sleep group #0 enters the sleep state, and SCell sleep group #1 enters the non-sleep state. In other words, Figure 3 For example, when the first indication information (ie, the secondary cell sleep indication field in the figure) includes bit 10, the first indication information can be used to indicate that SCell#1 enters a non-sleep state, and SCell#2 and SCell#3 enter a sleep state.

[0086] Optionally, the first SCell may be one of the SCells in the SCell sleep group that is instructed to enter the sleep state, that is, the base station may instruct one or more SCell sleep groups to enter the sleep state through first indication information according to transmission requirements and UE energy saving requirements, and one of the one or more SCell sleep groups is the first SCell.

[0087] In a possible embodiment, the first DCI may also include second indication information for determining or indicating N scheduled cells, where N is a positive integer. Therefore, the first SCell may also be used to indicate the scheduled cells to implement data scheduling. The scheduled cells described in the present application may include PCell and / or SCell.

[0088] Optionally, the first SCell and the scheduled cell may belong to the same cell set or different cell sets. Each cell set may include one or more cells. The cells included in any cell set may be predefined, or may be indicated by the base station to the UE, or may be indicated by the UE to the base station.

[0089] As an implementation manner of the second indication information, the second indication information may be a scheduled cell indicator field, which is used to indicate N scheduled cells from the scheduled cell set. For example, the second indication information may include or indicate the indexes of the N scheduled cells. The following is an explanation using the scheduled cell indicator field as an example of the second indication information.

[0090] In this implementation, the first DCI may also include third indication information for indicating a first cell set, and the N scheduled cells indicated by the second indication information are included in the first cell set. The second indication information may be used to indicate the N scheduled cells from the first cell set. For example, the third indication information may indicate the index of the scheduled cell set, and / or the second indication information may be used to indicate the index of the scheduled cell. The first cell set may be the maximum set of scheduled cells, that is, each time the first DCI is scheduled, the candidate scheduled cells may be one or more cells in the first cell set.

[0091] Optionally, the third indication information may be a scheduled cell set indicator field, which is used to indicate a scheduled cell set. For example, the value of the scheduled cell set indicator field is the index of the scheduled cell set, and the scheduled cell set is the first cell set. Hereinafter, the scheduled cell set indicator field is used as an example of the third indication information for explanation.

[0092] As an example, the scheduled cell set indication field may be used to indicate a cell set from multiple cell sets, and the cell set is the scheduled cell set. For example, the scheduled cell set indication field may carry the index of the first cell set. Figure 3 For example, the cell set Cell set #1 includes PCell, SCell #1, SCell #2 and SCell #3, and the cell set Cell set #2 includes SCell #4, SCell #5, SCell #6 and SCell #7. The value of the scheduled cell set indication field can be configured as 1, that is, the scheduled cell set indication field carries the index of Cell set #1, indicating that the scheduled cell set is Cell set #1; or, the value of the scheduled cell set indication field can be configured as 2 to carry the index of Cell set #2, indicating that the scheduled cell set is Cell set #2.

[0093] Optionally, the scheduled cell indication field can be specifically used to indicate an entry in a scheduled cell combination table, or it can be an index of a scheduled cell contained in an entry. In the present application, the scheduled cell combination table may also be referred to as a table. Among them, the table is associated with a cell set, and the base station can indicate the association relationship through an RRC parameter. Therefore, when the scheduled cell set indication field indicates a scheduled cell set, the scheduled cell combination table associated with the cell set can be determined according to the association relationship. The table may contain at least one entry, any entry represents a combination of scheduled cells in a scheduled cell set, and each combination may include one or more cells. That is, the scheduled cell indication field may include the index of an entry in the scheduled cell combination table. The scheduled cell combination table may be configured by RRC parameters, and the RRC parameters are, for example, ScheduledCellCombo-ListDCI-1-3 or ScheduledCellCombo-ListDCI-0-3, or other parameters. When the UE detects a DCI format 0_3 or DCIformat 1_3, and the scheduled cell set indication field in the DCI indicates a scheduled cell set, the scheduled cell combination table indicated by the scheduled cell indication field in the DCI is associated with the indicated scheduled cell set, and one or more cells contained in any entry in the scheduled cell combination table belong to the indicated scheduled cell set.

[0094] The combination of cells in any entry in the scheduled cell combination table may be only PCell, or include PCell and at least one SCell, or include no PCell and one or more SCells. Figure 3 , an example table contains cell combinations with indexes from 0 to 4, and the scheduled cell indication field may contain any index from 0 to 4, indicating that the UE receives PDSCH scheduling or sends PUSCH on all cells included in the scheduled cell combination corresponding to the index, that is, the scheduled cells are all cells included in the combination. For example, when the value of the scheduled cell indication field is 0, it indicates that the scheduled cell is PCell; when the value of the scheduled cell indication field is 1, it indicates that the scheduled cell is PCell and SCell#1, and so on.

[0095] Among them, at least one entry in the scheduled cell combination table may be predefined, or may be indicated by the base station to the UE, or may be indicated by the UE to the base station. For example, the base station may also indicate to the UE via an RRC message Figure 3 The table shown in FIG. 14 shows an example of a cell scheduling method, and one of the entries is activated in the first DCI through the scheduled cell indication to implement the indication of the scheduled cell.

[0096] In a possible implementation, when the first cell set indicated by the third indication information in the first DCI includes a PCell, the second indication information is used to indicate a scheduled cell, that is, N=1, and the scheduled cell is a PCell. For example, if a UE monitors a single DCI, such as DCI format 0_3 or DCI format 1_3, and in the single DCI, the scheduled cell set indication field is used to indicate a cell set, the scheduled cell indication field is used to indicate an entry in a scheduled cell combination table associated with the cell set, and the cell in the entry is a PCell, then the UE can determine that one or more sleep groups enter a sleep state or a non-sleep state according to the SCell sleep indication field in the single DCI. In this example, the single DCI is the first DCI, the scheduled cell indication field is the second indication information, the scheduled cell set indication field is the third indication information, and the SCell sleep indication field used to indicate that one or more sleep groups enter a sleep state is the first indication information.

[0097] It can be understood that the one or more cells indicated by the SCell sleep indication field will not conflict with the one or more cells indicated by the scheduled cell indication field, that is, the two indication information will not indicate the same cell index. In addition, under the condition that the scheduled cell set indicated by the singleDCI includes PCell, an entry indicated by the scheduled cell indication field only includes PCell, that is, the scheduled cell is PCell, which is a judgment condition for the UE to use the SCell sleep indication field to determine whether the SCell enters the sleep state, that is, when the UE determines that this condition is met, it will use the SCell sleep indication field to determine whether the SCell in one or more sleep groups enters the sleep state or non-sleep state, otherwise it will ignore (ignore) the SCell sleep indication field, or do not process (do not process) the SCell sleep indication field, for example, data transmission can be performed only according to the scheduled cell indicated by the single DCI.

[0098] In another possible implementation, when the first cell set indicated by the third indication information included in the first DCI does not include PCell, the scheduled cell indicated by the second indication information is the SCell with the smallest index. For example, in a single DCI, an entry in the scheduled cell combination table indicated by the scheduled cell indication field only contains the SCell with the smallest cell index in the cell set, and the UE determines that one or more sleep groups enter a sleep state or a non-sleep state according to the SCell sleep indication field in the DCI. In this example, the single DCI is the first DCI, the scheduled cell indication field is the second indication information, the scheduled cell combination table and the cell set indicated by the scheduled cell set indication field are managed, the scheduled cell set indication field is the third indication information, and the SCell sleep indication field used to determine that one or more sleep groups enter a sleep state is the first indication information.

[0099] It can be understood that, in this example, an entry indicated by the scheduled cell indication field only includes the SCell with the smallest cell index in the cell set, which is a judgment condition for the UE to use the SCell sleep indication field to determine whether the SCell enters the sleep state.

[0100] In another possible implementation, if the cell set indicated by the scheduled cell set indication field included in the single DCI does not include the PCell, an entry in the scheduled cell combination table indicated by the scheduled cell indication field does not include the cell index of any cell in the cell set, or the indicated entry does not indicate any cell, does not include any cell index, does not include any scheduling-related cell, or does not include any element or indication information, or the indicated entry is a reserved entry, then the UE determines that one or more sleep groups enter a sleep state or a non-sleep state according to the SCell sleep indication field in the single DCI, that is, determines to set the activation BWP of the first SCell to the first sleep BWP or other BWP according to the SCell sleep indication field. The single DCI is the first DCI, the scheduled cell set indication field is used as an example of the third indication information, the scheduled cell indication field can be used as an example of the second indication information, and the SCell sleep indication field is used as an example of the first indication information. At this time, the second indication information is used to indicate that the scheduled cell is an empty set, or is not used to indicate a scheduled cell. It can be understood that the entry is a special entry or a predefined entry in the scheduled cell combination table, which is specifically used to trigger the UE to determine whether the first SCell enters the sleep state according to the SCell sleep indication field. In this embodiment, the scheduled cell indication field can be used to indicate that the scheduled cell is an empty set, that is, the scheduled cell indication field does not indicate the scheduled cell at this time.

[0101] As another implementation of the second indication information, the first DCI may also indicate the location of the frequency domain resource block of the PDSCH or PUSCH scheduled on at least one cell in the scheduled cell set through frequency domain resource assignment (FDRA), and the at least one cell is the scheduled cell. Therefore, in this implementation, the second indication information may include the FDRA domain of the scheduled cell, that is, the cell corresponding to the FDRA domain configured as a normal value is the scheduled cell. In this implementation, the FDRA domain of the scheduled cell is used as an example of the second indication information for explanation.

[0102] The first DCI may include multiple FDRA fields, each of which is used to carry the FDRA of a cell. Figure 4 As shown, the first DCI may include the FDRA of PCell, the FDRA of SCell#1, the FDRA of SCell#2, the FDRA of SCell#3, and so on. Among them, when any cell is not scheduled, the FDRA field of the cell will be configured as a special value, and the FDRA field will be invalid at this time, that is, it is not used to indicate frequency domain resources; when any cell is scheduled, the FDRA field of the cell will be configured as a normal value, that is, at this time, the FDRA field is used to indicate the frequency domain resources used by the UE for data transmission in the cell. In other words, when the FDRA field is configured as a special value, the cell corresponding to the FDRA field is not scheduled for data transmission, and when the FDRA field is configured as a non-special value or configured as a normal value, it indicates that the cell corresponding to the FDRA field is scheduled for data transmission. Among them, the special value can be predefined, or it can be indicated by the base station to the UE, or it can be indicated by the UE to the base station. For example, the special value is all 0 or all 1, and please refer to the description in method 2 below for details.

[0103] Optionally, the FDRA field of the scheduled cell can be used in combination with the scheduled cell set indication field, that is, the FDRA field is used to indicate that one or more cells in the cell set indicated by the scheduled cell set indication field are scheduled cells. For example, the first DCI contains a scheduled cell set indication field, and the scheduled cell set indication field indicates cell set #1, then the first DCI contains the FDRA fields of all cells in cell set #1. Among them, all FDRA fields are arranged in ascending order from MSB to LSB according to the cell index, that is, from MSB to LSB, the information bit of the FDRA field of cell#a is followed by the information bit of the FDRA field corresponding to cell#b, where b is a cell index in cell set #1 that is closest to cell index a and larger than cell index a, and a and b are both positive integers. In addition, the FDRA field of the scheduled cell can also be used independently of the scheduled cell set indication field. For example, the first DCI may not contain the scheduled cell set indication, and indicate whether all cells are scheduled through the FDRA fields corresponding to all cells. Therefore, the FDRA field corresponding to the scheduled cell can be used to determine the scheduled cell among all cells.

[0104] The above describes the method 1 in which the first indication information indicates the first SCell.

[0105] In a possible embodiment, the first SCell indicated by the first indication information is not a scheduled cell, that is, the N scheduled cells indicated by the second indication information do not include the first SCell.

[0106] For example, the scheduled cell is PCell, or the scheduled cell includes PCell and a second SCell other than the first SCell, or the scheduled cell includes a second SCell other than the first SCell. It can be understood that in this scenario, the cell index or indexes indicated by the scheduled cell indication field do not overlap partially or completely with the cell indexes of the one or more SCells entering the sleep state indicated by the SCell sleep indication field, or there is no conflict, that is, the base station will not indicate to the UE through the first DCI that any cell has both data scheduling and enters the sleep state, and the base station will ensure that such indication or configuration will not appear. It can also be understood that the UE does not expect to monitor or receive a DCI indicating that the UE receives PDSCH / sends PUSCH and indicates that the cell enters the sleep state on any cell in a scheduled cell set. If the UE monitors or receives a first DCI indicating that the UE receives PDSCH or sends PUSCH and instructs the cell to enter a dormant state on any cell in a scheduled cell set, the UE understands (assumes) that the first DCI is an erroneous DCI or this scenario is an error scenario (error case), and the UE does not process the first DCI or skips processing the first DCI or discards (drops) the first DCI.

[0107] As an example, the N scheduled cells may include a second SCell, or a PCell and a second SCell. The first SCell is different from the second SCell, or the second SCell is one or more SCells other than the first SCell. In this example, there is no conflict between the first SCell and the scheduled cell, or the first indication information and the second indication information do not conflict, that is, the first indication information is not used to indicate that the second SCell enters a dormant state, that is, the first indication information is not used to indicate that the activation BWP of the second SCell is set to a dormant BWP.

[0108] Optionally, in this example, the UE and / or the base station can perform data transmission through the second SCell in the scheduled cell, for example, the UE can send PUSCH and / or receive PDSCH through the second SCell. In addition, the UE can also set the activation BWP of the first SCell to the first BWP, that is, put the first SCell into a dormant state, so that the dormancy of the SCell can be indicated and data transmission can be scheduled through the same DCI.

[0109] In addition, since an entry in the scheduled cell combination table contains the cell index of one or more cells, and the SCell sleep indication field is indicated by the SCell group, the indication granularity is relatively coarse, so it is difficult for the base station to avoid conflicts between the scheduled cell indication field and the SCell sleep indication field, that is, the scheduled cell indication field and the SCell sleep indication field indicate one or more identical cell indexes. If the N scheduled cells include the first SCell, or if there is a conflict between the first indication information and the second indication information, it can be handled in any of the following ways:

[0110] Mode A, when the N scheduled cells indicated by the second indication information include the first SCell, the UE performs data transmission in the first SCell according to the second indication information. Correspondingly, the base station can perform data transmission in the first SCell, that is, the activation BWP of the first SCell is not set to the first dormant BWP. Therefore, in mode A, the UE performs data transmission in the first SCell according to the second indication information, and does not set the activation BWP of the first SCell to the first dormant BWP. That is to say, in mode A, when there is a conflict between the first indication information and the second indication information, the UE can perform data transmission according to the second indication information by default to ensure the validity of the data link, reduce the delay caused by the failure of data transmission due to the first SCell entering the dormant state, and improve the reliability of data transmission. Optionally, if the scheduled cell set does not include PCell, the UE can default to processing based on mode A when there is a conflict between the cell index of the first SCell and the cell index of the scheduled cell, that is, data transmission is preferentially performed according to the second indication information included in the first DCI.

[0111] In mode B, when the N scheduled cells indicated by the second indication information include the first SCell, the UE sets the activated BWP of the first SCell to the first dormant BWP according to the first indication information. That is to say, in mode B, when there is a conflict between the first indication information and the second indication information, the UE does not transmit data according to the second indication information, and the UE can perform SCell dormancy according to the first indication information by default, so as to reduce power consumption as much as possible and improve terminal battery life.

[0112] It can be understood that, in combination with method B, when N scheduled cells include the first SCell overlapping, the UE can set the activation BWP of the first SCell to the first dormant BWP according to the first indication information, and perform data transmission in at least one scheduled cell according to the second indication information. The at least one scheduled cell can be at least one cell among the N scheduled cells except the first SCell.

[0113] For example, when the second indication information is the scheduled cell indication field, the scheduled cell is a combination of multiple cell combinations, and therefore may include multiple cells. If the base station only needs to schedule a part of the cells in the combination, and this part of the cells is not used as a separate cell combination, the first indication information can be used to make the unscheduled cells in the combination enter a dormant state, so that data transmission can be performed only in a part of the cells in the combination.

[0114] Still Figure 3 For example, the base station needs to schedule the UE to transmit data in SCell#1, and there is no data to be transmitted in other cells. Figure 3 The table shown does not contain a combination solution that uses SCell#1 as the scheduled cell. If the cell scheduling is performed according to the combination in the table, the UE will monitor PDCCH and receive PDSCH in at least one cell other than SCell#1, which will increase the UE power consumption and affect the battery life. According to method B, the second indication information can indicate Figure 3 The index 3 in the table shown indicates that the scheduled cells are SCell#1, SCell#2 and SCell#3. In addition, the first indication information may indicate that the SCell group entering the sleep state is SCell sleep group #1, that is, the first SCell is SCell#2 and SCell#3, so that the UE sets the activated BWP of SCell#2 to the sleep BWP, and sets the activated BWP of SCell#3 to the sleep BWP, so that the UE can only transmit data through SCell#1 to reduce UE overhead. In addition, this method can reduce the number of entries contained in the scheduled cell combination table to reduce configuration overhead. In addition, the SCell working in the combination can be flexibly changed through the sleep indication of the SCell to achieve flexible scheduling of the SCell.

[0115] In mode C, the UE may also assume that there will be no conflict between the first indication information and the second indication information. If there is a conflict, it means that there is an error in the first DCI, and the UE may discard the first DCI, that is, not to transmit data according to the second indication information and not to switch the SCell to a dormant state according to the first indication information. For example, when the FDRA domain is used to indicate the scheduled cell, for a scheduled cell set, since the FDRA domain corresponding to all cells included in the scheduled cell set can indicate whether the corresponding cell is scheduled, the base station can avoid a conflict between the dormant first SCell and the scheduled cell. Once a conflict occurs, the UE can determine that the single DCI is invalid, or it is an error scenario, and the UE does not process the single DCI.

[0116] Through any of Method A, Method B and Method C, the problem of conflict in indication information between the scheduled cell indication field and the SCell sleep indication field, which causes ambiguity in the understanding of the sleep cell and the scheduling cell between the UE and the base station, can be solved. This is beneficial to ensuring the stability of the transmission link, reducing terminal power consumption and improving battery life.

[0117] As an example of a conflict between the first indication information and the second indication information, when a row of entries in the scheduled cell combination table does not contain only PCell, the second communication device may indicate an entry containing PCell and at least one SCell through the second indication information, that is, the scheduled cell includes PCell and at least one SCell. At this time, only PCell can be scheduled for data transmission without scheduling SCell. Optionally, the first communication device may determine that one or more SCells enter a dormant state based on the first indication information. For example, if the first indication information indicates that the SCell belonging to the same entry as the PCell enters a dormant state, the first communication device may cause the SCell to enter a dormant state. At this time, the SCell indicated by the second indication information conflicts with the SCell indicated by the first indication information, and the UE may switch the conflicting SCell to a dormant state according to the first indication information in accordance with method B. In addition, if the SCell belonging to the same entry as the PCell is not indicated to enter a dormant state, the first communication device may determine that the SCell is not scheduled and does not enter a dormant state.

[0118] For example, when there is no row of entries in the scheduled cell combination table configured by the base station to the UE through RRC parameters that only contains PCell, that is, an entry in the scheduled cell combination table may contain both PCell and one or more SCells, or an entry may contain one or more SCells, but not only PCell. It can be understood that an entry containing only PCell, for example Figure 3 The entry with index 0 in the table shown contains both PCell and one or more SCells, for example Figure 3 The entries with index 1 or 4 in the table shown contain one or more SCell entries, for example Figure 3As shown in the entry with index 2 or 3 in the table shown. In the first DCI received by the UE, the second indication information indicates an entry containing a PCell and at least one SCell, that is, the scheduled cell includes a PCell and at least one SCell. At this time, the base station can schedule only the PCell for data transmission through the first DCI, without scheduling the SCell, that is, the UE receives the PDSCH on the PCell according to the indication information of the first DCI (for example, the FDRA field, MCS field and other indication fields corresponding to the PCell), but does not receive the PDSCH on at least one SCell indicated by the second indication information. The UE determines that the SCell enters the dormant state according to the first indication information. If the cell index of the SCell indicated by the first indication information to enter the dormant state is the same as the cell index of the SCell indicated by the second indication information, the UE causes the SCell to enter the dormant state. If the cell index of the SCell indicated by the first indication information to enter the non-dormant state is the same as the cell index of the SCell indicated by the second indication information, the UE determines that the SCell enters the non-dormant state and does not receive the PDSCH on the SCell. It can be understood that in this scenario, the UE ignores the scheduling information corresponding to all SCells indicated by the second indication information (for example, the FDRA field, MCS field and other indication fields corresponding to the SCell).

[0119] As another example, when a row of entries in the scheduled cell combination table does not contain only PCell, the second communication device may indicate an entry containing PCell and at least one SCell through the second indication information, that is, the scheduled cell includes PCell and at least one SCell. At this time, the PCell can be scheduled for data transmission, and the SCell that has not entered the sleep state can be optionally scheduled for data transmission. For example, the first communication device may determine whether the SCell belonging to the same entry as the PCell enters the sleep state based on the first indication information. Among them, if the first indication information indicates that the SCell belonging to the same entry as the PCell enters the sleep state, the first communication device may cause the SCell in which the first indication information and the second indication information conflict to enter the sleep state, and the SCell is not scheduled. If the SCell belonging to the same entry as the PCell is not indicated to enter the sleep state, the first communication device may determine that the SCell has not entered the sleep state, and the SCell may be scheduled for data transmission.

[0120] For example, when there is no row of entries in the scheduled cell combination table configured to the UE by the base station through RRC parameters that only contains PCell, that is, an entry in the scheduled cell combination table may contain both PCell and one or more SCells, or an entry may contain one or more SCells, but not only PCell. In the first DCI received by the UE, the second indication information indicates an entry containing PCell and at least one SCell, that is, the scheduled cell includes PCell and at least one SCell. At this time, the base station can schedule PCell for data transmission through the first DCI, and schedule SCells that have not entered the sleep state for data transmission. The UE determines whether the SCell indicated by the second indication information enters the sleep state based on the first indication information in the first DCI. Among them, if the cell index of the SCell indicated by the first indication information to enter the sleep state is the same as the cell index of the SCell indicated by the second indication information, the UE puts the SCell into the sleep state and does not receive PDSCH on these SCells. If the cell index of the SCell indicated by the first indication information to enter a non-sleep state is the same as the cell index of the SCell indicated by the second indication information, the UE determines that the SCell enters a non-sleep state, and the UE receives PDSCH on the SCell according to the indication information in the first DCI (for example, the FDRA domain, MCS domain, and other indication domains corresponding to the SCell). It can be understood that in this scenario, the UE ignores the scheduling information corresponding to the SCell indicated by the first indication information to enter a sleep state (for example, the FDRA domain, MCS domain, and other indication domains corresponding to the SCell).

[0121] Mode 2: The first indication information multiplexes other fields in the first DCI, that is, the bits in other fields are used to indicate whether the SCell enters the dormant state. Mode 2 can also be called a domain information re-interpretation mode.

[0122] It can be understood that the first DCI in mode 2 does not indicate the scheduled cell, that is, data cannot be scheduled.

[0123] In a possible embodiment, the premise for reusing other fields in the first DCI in method 2 to indicate the dormant SCell is that, for a scheduled cell set, part or all of the FDRA fields corresponding to all cells included in the scheduled cell set in the first DCI are configured as special values, for example, any FDRA field is all 0 or all 1.

[0124] Taking the format of the first DCI as DCI format 1_3 as an example, for a scheduled cell set, if the resource allocation (RA) type (type) of a cell in the scheduled cell set is configured as RA type 0, the value of the FDRA field corresponding to the cell is all 0, indicating that FDRA is a special value. If the resource allocation type of a cell in the scheduled cell set is configured as RA type 1, the value of the FDRA field corresponding to the cell is all 1, indicating that FDRA is a special value. If the resource allocation type of a cell in the scheduled cell set is configured as dynamic switching (dynamicSwitch), the value of the FDRA field corresponding to the cell is all 0 (that is, when the FDRA field MBS bit indicates RAtype 0) or all 1 (that is, when the FDRA field MBS bit indicates RA type 1), indicating that the FDRA field is a special value.

[0125] Based on mode 2, for a scheduled cell set, the UE can determine whether each SCell in the scheduled cell set is indicated as a dormant SCell according to the value of a bit in at least one information field in the first DCI when part or all of the FDRA fields in the first DCI are set to special values. The first SCell may be one or more SCells in the dormant SCell.

[0126] Optionally, the at least one information field may include at least one of a modulation and coding scheme (MCS) field, a new data indicator (NDI) field, a redundancy version (RV) field, a hybrid automatic repeat request (HARQ) process number (HARQ number process) field, an antenna port field, and a demodulation reference signal (DMRS) sequence initialization (DMRS sequence initialization) field in the first DCI. Further optionally, the above MCS field, NDI field, and RV field may be included in the first transport block (TB) of the first scheduling cell of the first DCI (which may be recorded as TB1 of the first scheduling cell), that is, the UE may determine the first SCell based on the above three fields in TB1 of the first scheduling cell and the HARQ number process field, antenna port field, and / or DMRS sequence initialization field.

[0127] For example, when the base station indicates a scheduled cell combination table associated with a cell set through RRC parameters, the first scheduled cell is the cell with the smallest cell index among one or more scheduled cells indicated by the second indication information in the first DCI, that is, the second indication information indicates the cell with the smallest cell index in an entry in the table. When the base station does not indicate a scheduled cell combination table associated with a cell set through RRC parameters, the first scheduled cell is the cell with the smallest cell index in a scheduled cell set indicated by the third indication information in the first DCI. According to different RRC parameter configurations, the total number of bits contained in all the above information fields is at least 17 bits and at most 20 bits. The maximum number of SCell cells that can be configured for a cell group (cellgroup, CG) is 15. If the first indication information contains all bits that exceed the number of cells contained in the scheduled cell set or the number of all configured SCells, the extra bits or bits that do not correspond to the cell are reserved bits and do not indicate any information. When the base station configures the antenna port field as type 2 (type2) through RRC parameters, it is used to indicate that the antenna port field of the first SCell is the antenna port field of the first scheduling cell. The RRC parameter can be AntennaPortsDCI0-3=type2 or AntennaPortsDCI1-3=type2, or other RRC parameters.

[0128] As a possible example, Figure 5 As shown, the UE can form a bitmap in the first DCI according to the MCS field of TB1 of the first scheduling cell, the NDI field of TB1 of the first scheduling cell, the RV field of TB1 of the first scheduling cell, the HARQ process number field, the antenna port field and the DMRS sequence initialization field, and arrange each bit in the corresponding bitmap in ascending order of the cell index of the SCell. It can be understood that the field information is used for SCell sleep indication, and all the bits of the field information from MSB to LSB correspond to the configured SCell from small to large according to the cell index. Therefore, the UE can determine whether the corresponding SCell is indicated as a sleep SCell by interpreting the value of each bit in the bitmap. For example Figure 5As shown, if the bit value is 0, it indicates that the corresponding SCell is a dormant SCell. Correspondingly, if the bit value is 1, it indicates that the corresponding SCell is a non-dormant SCell. Optionally, the first DCI in method 2 may also carry a scheduled cell set indication field. At this time, the scheduled cell set indication can be used to indicate the cell set to which the dormant SCell belongs, that is, the scheduled cell set indication field can be used to indicate the cell set to which the SCell entering the dormant state is located. Optionally, if the first SCell does not belong to the scheduled cell set, switching all first SCells to the dormant state according to the first DCI can be stopped. For example, the base station is configured with two cell sets cell set#1 and cell set#2, cell set#1 contains PCell, SCell#1, SCell#2 and SCell#3, and cell set#2 contains SCell#4 and SCell#5. If the UE receives a first DCI, when the scheduled cell set indication field in the first DCI indicates cell set #2, and the FDRA fields corresponding to SCell #4 and SCell #5 contained in cell set #2 are set to special values, the UE determines whether SCell #4 and SCell #5 enter a dormant state or a non-dormant state according to the MCS field of TB1 of the first scheduling cell, the NDI field of TB1 of the first scheduling cell, the RV field of TB1 of the first scheduling cell, the HARQ number process field, the antenna port field and / or the DMRS sequence initialization field. SCell #4 corresponds to the MSB bit of all the bits in the above five fields, that is, the first bit, and SCell #5 corresponds to the next bit of the MSB bit, that is, the second bit. If the first bit is 0 and the second bit is 1, it means that SCell #4 enters a dormant state and SCell #5 enters a non-dormant state.

[0129] For example, if the first indication information includes the MCS field of TB1 of the first scheduling cell, the NDI field of TB1 of the first scheduling cell, the RV field of TB1 of the first scheduling cell, the HARQ number process field, the antenna port field and the DMRSsequence initialization field, the number of bits of the first indication information is 17 bits, which is greater than the two cells included in cell set #2. The MSB two bits of the first indication information are the valid indication field, and the remaining 15 bits are reserved bits and do not indicate any information. It can also be understood that at this time, the first indication field only includes the MSB two bits of the MCS field of the first scheduling cell TB1.

[0130] As another example, the scheduled cell set indication field in the first DCI does not restrict the cell set indicating the SCell entering the dormant state, that is, the MCS field of TB1 of the first scheduling cell, the NDI field of TB1 of the first scheduling cell, the RV field of TB1 of the first scheduling cell, the HARQ number process field, the antenna port field and / or the DMRSsequence initialization field can indicate whether all configured SCells or all configured activated SCells enter the dormant state or the non-dormant state.

[0131] In a possible implementation, the FDRA fields corresponding to all cells in the scheduled cell set in the first DCI are all set to special values. Figure 6As shown, the base station is configured with two cell sets cell set #1 and cell set #2, cell set #1 includes PCell, SCell #1, SCell #2 and SCell #3, and cell set #2 includes SCell #4, SCell #5, SCell #6 and SCell #7. If the UE receives a first DCI, when the scheduled cell set indication field in the first DCI indicates cell set #1, and the FDRA fields corresponding to the PCell, SCell #1, SCell #2 and SCell #3 contained in cell set #1 are all set to special values, wherein PCell and SCell #3 are configured with RA type 0, and the FDRA fields are respectively set to all zero bits, and SCell #1 and SCell #2 are configured with RA type 1, and the FDRA fields are respectively set to all 1 bits, then the UE determines whether PCell, SCell #1, SCell #2, SCell #3, SCell #4, SCell #5, SCell #6 and SCell #7 enter a dormant state or a non-dormant state according to the MCS field of TB1 of the first scheduling cell, the NDI field of TB1 of the first scheduling cell, the RV field of TB1 of the first scheduling cell, the HARQ number process field, the antenna port field and / or the DMRS sequence initialization field, that is, the five DCI field information can indicate whether all configured SCells enter a dormant state or a non-dormant state, assuming that all configured SCells are in an activated state. SCell#1 corresponds to the MSB of all bits in the above five domains, i.e., the first bit, SCell#2 corresponds to the next bit of the MSB, i.e., the second bit, and so on, SCell#3, SCell#4, SCell#5, SCell#6, and SCell#7 correspond to the third bit, fourth bit, fifth bit, sixth bit, and seventh bit, respectively. If the first bit, second bit, and third bit are 0, and the fourth bit, fifth bit, sixth bit, and seventh bit are 1, it means that SCell#1, SCell#2, and SCell#3 enter the sleep state, and SCell#4, SCell#5, SCell#6, and SCell#7 enter the non-sleep state.

[0132] For example, the first indication information is the MCS domain of TB1 of the first scheduling cell, the NDI domain of TB1 of the first scheduling cell, the RV domain of TB1 of the first scheduling cell, the HARQ number process domain, the antenna port domain and / or the DMRSsequence initialization domain of TB1 of the first scheduling cell. Assume that the number of bits of the first indication information is 17 bits, which is greater than the number of all configured SCells, that is, 7 SCells. The seven bits from MSB to LSB of the first indication information are valid indication domains, and the remaining 10 bits are reserved bits and do not indicate any information. It can also be understood that at this time, the first indication information only includes the MCS domain of the first scheduling cell TB1 (for example, 5 bits), the NDI domain of TB1 of the first scheduling cell (for example, 1 bit), and the MSB bit of the RV domain of TB1 of the first scheduling cell, that is, the first indication information can include 7 bits at this time.

[0133] In another possible implementation, if the cell set indicated by the scheduled cell set indication field in the first DCI includes PCell, the FDRA fields corresponding to other SCells in the scheduled cell set except PCell are set to special values, and the FDRA field corresponding to PCell is set to a normal value, that is, it indicates the frequency domain resource block position of data transmission on PCell; if the cell set indicated by the scheduled cell set indication field in the first DCI does not include PCell, that is, the cells included in the indicated scheduled cell set are all SCells, then the FDRA fields corresponding to all SCells in the scheduled cell set are set to special values.

[0134] like Figure 7 As shown, when the scheduled cell set indication field in the first DCI indicates cell set #1, and the FDRA fields corresponding to SCell #1, SCell #2 and SCell #3 contained in cell set #1 are all set to special values, wherein SCell #1 and SCell #3 are configured with RA type 0, and the FDRA fields are set to all zero bits respectively, SCell #2 is configured with RA type 1, and the FDRA fields are set to all 1 bits respectively, and the FDRA field corresponding to the PCell is a normal data scheduling indication, that is, not all 0 or all 1 bits, then the UE determines whether PCell, SCell #1, SCell #2, SCell #3, SCell #4, SCell #5, SCell #6 and SCell #7 enter a sleep state or a non-sleep state according to the MCS field of TB1 of the first scheduling cell, the NDI field of TB1 of the first scheduling cell, the RV field of TB1 of the first scheduling cell, the HARQ number process field, the antenna port field and / or the DMRS sequence initialization field.

[0135] It is understandable that, in order to implement the functions in the above embodiments, the base station and the terminal include hardware structures and / or software modules corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the units and method steps of each example described in the embodiments disclosed in this application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0136] Figure 8 and Fig. 9 The following is a schematic diagram of the structure of possible communication devices provided in the embodiments of the present application. These communication devices can be used to implement the functions of the terminal or base station in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of the present application, the communication device can be as follows: Figure 1 One of the terminals 120a-120j shown may also be Figure 1 The base station 110a or 110b shown may also be a module (such as a chip) applied to a terminal or a base station.

[0137] like Figure 8 As shown, the communication device 800 includes a processing unit 810 and a transceiver unit 820. The communication device 800 is used to implement the above Figure 2 Functions of a UE or a base station in the method embodiment shown in FIG.

[0138] When the communication device 800 is used to implement Figure 2 The functions of the UE in the method embodiment shown are: the transceiver unit 820 can be used to receive the first DCI; the processing unit 810 is used to refer to the activated BWP on the first SCell as the first dormant BWP according to the first indication information.

[0139] When the communication device 800 is used to implement Figure 2 In the method embodiment shown, the functions of the base station are: the processing unit 810 can be used to determine the first DCI; the transceiver unit 820 can be used to send the first DCI. The processing unit 810 can also be used to set the active BWP on the first SCell to the first dormant BWP.

[0140] For more detailed description of the processing unit 810 and the transceiver unit 820, please refer to Figure 2 The method embodiment shown is described in detail.

[0141] like Fig. 9As shown, the communication device 900 includes a processor 910 and an interface circuit 920. The processor 910 and the interface circuit 920 are coupled to each other. It is understood that the interface circuit 920 can be a transceiver or an input-output interface. Optionally, the communication device 900 may also include a memory 930 for storing instructions executed by the processor 910 or storing input data required by the processor 910 to execute instructions or storing data generated after the processor 910 executes instructions.

[0142] When the communication device 900 is used to implement Figure 2 When the method is shown, the processor 910 is used to implement the function of the above-mentioned processing unit 810, and the interface circuit 920 is used to implement the function of the above-mentioned transceiver unit 820.

[0143] When the above communication device is a chip applied to UE, the UE chip implements the functions of the UE in the above method embodiment. The UE chip receives information sent by the base station to the UE through other modules in the UE (such as a radio frequency module or an antenna); or the UE chip sends information to other modules in the UE (such as a radio frequency module or an antenna), and the information is sent by the UE to the base station.

[0144] When the above-mentioned communication device is a module applied to a base station, the base station module implements the functions of the base station in the above-mentioned method embodiment. The base station module receives information from other modules in the base station (such as a radio frequency module or an antenna), and the information is sent by the UE to the base station; or, the base station module sends information to other modules in the base station (such as a radio frequency module or an antenna), and the information is sent by the base station to the UE. The base station module here can be a baseband chip of a base station, or a CU, DU or other module, or a device under an open radio access network (O-RAN) architecture, such as an open CU, an open DU and other devices.

[0145] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0146] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a UE. The processor and the storage medium can also be present in a base station or a UE as discrete components.

[0147] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is executed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device or other programmable device. The computer program or instruction may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instruction may be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server, data center, etc. that integrates one or more available media. The available medium may be a magnetic medium, for example, a floppy disk, a hard disk, a tape; it may also be an optical medium, for example, a digital video disc; it may also be a semiconductor medium, for example, a solid-state hard disk. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0148] In the various embodiments of the present application, unless otherwise specified or provided for in any logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

[0149] In the present application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of the present application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula of the present application, the character " / " indicates that the previous and next associated objects are in a "division" relationship. "Including at least one of A, B and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.

[0150] It is understood that the various numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

Claims

1. A communication method, characterized in that: include: receiving first downlink control information DCI, where the format of the first DCI is a DCI format supporting scheduling of data of multiple cells, and the first DCI includes first indication information, where the first indication information is used to indicate that the activated BWP on the first secondary cell is the first dormant BWP; The activated BWP of the first secondary cell is set as the first dormant BWP according to the first indication information.

2. The method according to claim 1, characterized in that The first DCI also includes second indication information, where the second indication information indicates N scheduled cells, where N is a positive integer.

3. The method according to claim 2, characterized in that The N scheduled cells do not include the first secondary cell.

4. The method according to claim 3, characterized in that The first DCI further includes third indication information, where the third indication information is used to indicate a first cell set, and the N scheduled cells belong to the first cell set; When the first cell set includes a primary cell, N is equal to 1, and the scheduled cell is a primary cell.

5. The method according to claim 3, characterized in that The N scheduled cells also include: Second secondary cell, or The primary cell and the second secondary cell, The second secondary cell is different from the first secondary cell, and the first indication information is not used to indicate that the activated BWP of the second secondary cell is set to the dormant BWP.

6. The method according to claim 2, characterized in that The N scheduled cells include the first secondary cell, and the method further includes: Perform data transmission on the first secondary cell according to the second indication information.

7. The method according to claim 1, characterized in that The first DCI also includes second indication information and third indication information, the third indication information is used to indicate the first cell set, when the first cell set does not include the primary cell, the scheduled cells indicated by the second indication information are an empty set.

8. A communication method, characterized in that: include: Determine first downlink control information DCI, where the format of the first DCI is a DCI format that supports scheduling data of multiple cells, and the first DCI includes first indication information, where the first indication information is used to indicate that the activated BWP on the first secondary cell is the first dormant BWP; Sending the first DCI; The activated BWP of the first secondary cell is set to the first dormant BWP.

9. The method according to claim 8, characterized in that The first DCI also includes second indication information, where the second indication information indicates N scheduled cells, where N is a positive integer.

10. The method according to claim 9, characterized in that The N scheduled cells do not include the first secondary cell.

11. The method according to claim 10, characterized in that The first DCI further includes third indication information, where the third indication information is used to indicate a first cell set, and the N scheduled cells belong to the first cell set; When the first cell set includes a primary cell, N is equal to 1, and the scheduled cell is a primary cell.

12. The method according to claim 10, characterized in that The N scheduled cells also include: Second secondary cell, or The primary cell and the second secondary cell, The second secondary cell is different from the first secondary cell, and the first indication information is not used to indicate that the activated BWP of the second secondary cell is set to the dormant BWP.

13. The method according to claim 9, characterized in that The N scheduled cells include the first secondary cell, and the method further includes: Perform data transmission on the first secondary cell.

14. The method according to claim 8, characterized in that The first DCI also includes second indication information and third indication information, the third indication information is used to indicate the first cell set, when the first cell set does not include the primary cell, the scheduled cells indicated by the second indication information are an empty set.

15. A communication device, characterized in that: The method comprises a processor configured to execute a computer program or an instruction to implement the method according to any one of claims 1 to 14.

16. A communication device, characterized in that: The method comprises modules for executing the method as claimed in any one of claims 1 to 14.

17. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or an instruction. When the computer program or the instruction is executed by the communication device, the method according to any one of claims 1 to 14 is implemented.

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