Cell scheduling method and apparatus

Abstract

An embodiment of the present application provides a cell scheduling method and apparatus. The method includes: a terminal device receiving a downlink control information format from a network device; and the terminal device determining a first cell group scheduled by the downlink control information format based on a radio network temporary identifier used to scramble the downlink control information format and a first indicator field in the downlink control information format. The radio network temporary identifier belongs to one of at least two radio network temporary identifiers. The at least two radio network temporary identifiers correspond to at least two cell groups. Each of the at least two radio network temporary identifiers corresponds to at least one cell group. The first indicator field is used to determine the first cell group among the at least two cell groups. According to the cell scheduling method and apparatus provided herein, overhead of the downlink control information format can be reduced.

Description

[Technical Field]

[0001] TECHNICAL FIELD Embodiments of the present application relate to the field of communications, and more particularly to a cell scheduling method and apparatus. [Background technology]

[0002] Currently, physical downlink shared channels (PDSCHs) of different cells are individually scheduled using different downlink control information (DCI) formats. Similarly, physical uplink shared channels (PUSCHs) of different cells are individually scheduled using different DCI formats. When PDSCHs or PUSCHs of multiple cells are scheduled, the required overhead of DCI formats is very high. Therefore, how to reduce the overhead of DCI formats when PDSCHs or PUSCHs of multiple cells need to be scheduled has become an urgent problem to be solved. Summary of the Invention

[0003] The embodiments of the present application provide a cell scheduling method and apparatus to reduce the overhead of downlink control information format.

[0004] According to a first aspect, there is provided a cell scheduling method, which may be performed by a terminal device or a component (e.g., a chip or circuit) of the terminal device, without being limited thereto.

[0005] The method may include: a terminal device receiving a downlink control information format from a network device; and the terminal device determining a first cell group scheduled by the downlink control information format based on a radio network temporary identifier used to scramble the downlink control information format and a first indicator field in the downlink control information format. The radio network temporary identifier used to scramble the downlink control information format belongs to one of at least two radio network temporary identifiers, and the at least two radio network temporary identifiers correspond to at least two cell groups. Each of the at least two radio network temporary identifiers corresponds to at least one cell group. The first indicator field is used to determine the first cell group among the at least two cell groups.

[0006] In the above solution, each of at least two radio network temporary identifiers corresponds to at least one cell group, and multiple cells can be scheduled by one downlink control information format by using a first indicator field in the downlink control information format and the radio network temporary identifier used to scramble the downlink control information format.

[0007] Alternatively, the method may include a terminal device receiving downlink control information from a network device, and the terminal device determining a first cell group scheduled by the downlink control information based on a radio network temporary identifier used to scramble the downlink control information and a first indicator field in the downlink control information. The radio network temporary identifier used to scramble the downlink control information format belongs to one of at least two radio network temporary identifiers, and the at least two radio network temporary identifiers correspond to at least two cell groups. Each of the at least two radio network temporary identifiers corresponds to at least one cell group. The first indicator field is used to determine the first cell group among the at least two cell groups. Furthermore, the downlink control information format is a downlink control information format that can be used to simultaneously schedule data transmissions of multiple cells.

[0008] With reference to the first aspect, in some implementations of the first aspect, among the at least two radio network temporary identifiers, different radio network temporary identifiers correspond to different cell groups.

[0009] In the above solution, since different radio network temporary identifiers correspond to different cell groups, more cells can be scheduled in one downlink control information format, and the overhead of the downlink control information format can be further reduced.

[0010] With reference to the first aspect, in some implementations of the first aspect, the method further includes the terminal device receiving upper layer signaling from the network device, the upper layer signaling indicating a correspondence between the at least two wireless network temporary identifiers and the at least one cell group.

[0011] According to a second aspect, there is provided a cell scheduling method. The method may be performed by a network device or a component (e.g., a chip or circuit) of the network device. This is not limited thereto. For advantageous effects of the second aspect, please refer to the first aspect.

[0012] The method may include: a network device determining to scramble a downlink control information format by using a radio network temporary identifier corresponding to a first cell group, wherein the radio network temporary identifier used to scramble the downlink control information format belongs to one of at least two radio network temporary identifiers, the at least two radio network temporary identifiers corresponding to at least two cell groups, each of the at least two radio network temporary identifiers corresponding to at least one cell group, the first cell group belonging to the at least one cell group corresponding to the radio network temporary identifier used to scramble the downlink control information format; the network device determining to indicate the first cell group among the at least one cell group corresponding to the radio network temporary identifier used to scramble the downlink control information format by using a first indicator field included in the downlink control information format; and the network device transmitting the downlink control information format to the terminal device.

[0013] With reference to the second aspect, in some implementations of the second aspect, the method further includes the network device transmitting upper layer signaling to the terminal device, the upper layer signaling indicating a correspondence between the at least two wireless network temporary identifiers and the at least one cell group.

[0014] With reference to the second aspect, in some implementations of the second aspect, the downlink control information format further includes a second indicator field. Determining, by the network device, to indicate a first cell group among the at least one cell group corresponding to a radio network temporary identifier used to scramble the downlink control information format by using a first indicator field included in the downlink control information format includes determining, by the network device, to indicate the first cell group among the at least one cell group corresponding to a radio network temporary identifier used to scramble the downlink control information format by using a combination of the first indicator field and the second indicator field.

[0015] With reference to the first or second aspect, in some implementations, the at least two radio network temporary identifiers include a first identifier and a second identifier, where the first identifier indicates at least one of a next dynamic scheduling of a physical downlink data channel or a next dynamic scheduling of a physical uplink data channel corresponding to the first cell group, and the second identifier indicates at least one of a next enabling or disabling of a semi-persistent scheduling physical downlink data channel, a next enabling or disabling of a semi-persistent scheduling physical uplink data channel, a retransmission of a semi-persistent scheduling physical downlink data channel, a retransmission of a semi-persistent scheduling physical uplink data channel, a next enabling or disabling of a configuration grant physical uplink data channel transmission, a next enabling or disabling of a configuration grant physical downlink data channel transmission, a retransmission of a configuration grant physical uplink data channel transmission, a retransmission of a configuration grant physical downlink data channel transmission, or a retransmission of semi-persistent channel state information corresponding to the first cell group.

[0016] With reference to the first or second aspect, in some implementations, the at least two radio network temporary identifiers include a first identifier and a second identifier. The first identifier indicates at least one of a next dynamic scheduling of a physical downlink data channel, a dynamic scheduling of a physical uplink data channel, a semi-persistent scheduling physical downlink data channel retransmission, a semi-persistent scheduling physical uplink data channel retransmission, a configuration-grant physical uplink data channel transmission retransmission, or a configuration-grant physical downlink data channel transmission retransmission corresponding to the first cell group. The second identifier indicates at least one of a next enabling or disabling of a semi-persistent scheduling physical downlink data channel, a semi-persistent scheduling physical uplink data channel enabling or disabling of a configuration-grant physical uplink data channel transmission, a configuration-grant physical downlink data channel transmission enabling or disabling, or a semi-persistent channel state information enabling or disabling corresponding to the first cell group.

[0017] With reference to the first or second aspect, in some implementations, one downlink control information format schedules one cell, and the downlink control information format performs at least one of the following scheduling: dynamic scheduling of transmission of a physical downlink data channel in the cell, dynamic scheduling of transmission of a physical uplink data channel in the cell, enabling or disabling a semi-persistently scheduled physical downlink data channel in the cell, enabling or disabling a semi-persistently scheduled physical uplink data channel in the cell, retransmission of a semi-persistently scheduled physical downlink data channel in the cell, retransmission of a semi-persistently scheduled physical uplink data channel in the cell, enabling or disabling a configuration grant physical uplink data channel transmission in the cell, enabling or disabling a configuration grant physical downlink data channel transmission in the cell, retransmission of a configuration grant physical uplink data channel transmission in the cell, retransmission of a configuration grant physical downlink data channel transmission in the cell, or enabling or disabling semi-persistent channel state information in the cell. One downlink control information format schedules multiple cells. The downlink control information format may perform at least one of the above scheduling for one of the multiple cells, and may perform the same or different types of scheduling for any two different cells among the multiple cells.

[0018] With reference to the first or second aspect, in some implementations, the first cell group includes at least one cell when the radio network temporary identifier used to scramble the downlink control information format is the first identifier, or the first cell group is one cell when the radio network temporary identifier used to scramble the downlink control information format is the second identifier.

[0019] In the above solution, when the radio network temporary identifiers are different, the first indicator field in the downlink control information format can indicate different cell groups or cells by using the same value. On the other hand, the same downlink control information format supports different types of scheduling for multiple cells. On the other hand, the setting of different indicator fields in the downlink control information format for different radio network temporary identifiers is avoided, thereby further reducing the overhead of the downlink control information format.

[0020] Referring to the first aspect or the second aspect, in some implementations, the first indicator field includes K bits, where K ≥ 1 and K is an integer. When the radio network temporary identifier used to scramble the downlink control information format is the first identifier, L1 values of the first indicator field respectively correspond to L1 cell groups, each of the L1 cell groups includes at least one cell, the L1 cell groups include the first cell group, and L1 is an integer. When the radio network temporary identifier used to scramble the downlink control information format is the second identifier, L2 values of the first indicator field respectively correspond to L2 cell groups, the L2 cell groups include the first cell group, and L2 is an integer. If L1 ≥ L2, then 2 K-1 <L1 ≤ 2 K and 1 ≤ L2 ≤ 2 K or, if L1 < L2, then 1 ≤ L1 < 2 K and 2 K-1 <L2 ≤ 2 K is true.

[0021] Furthermore, when the radio network temporary identifier used to scramble the downlink control information format is the first identifier, each of the L1 cell groups includes at least one cell, i.e., each of the L1 cell groups may include one cell or multiple cells, and when the radio network temporary identifier used to scramble the downlink control information format is the second identifier, each of the L2 cell groups is one cell, i.e., each of the L2 cell groups includes only one cell.

[0022] With reference to the first or second aspect, in some implementations, using the first indicator field to determine a first cell group among the at least two cell groups includes using the first indicator field to determine a second cell group among the at least two cell groups, and a correspondence between the second cell group and the first indicator field being indicated by higher layer signaling. When a radio network temporary identifier used to scramble the downlink control information format is the first identifier, the first cell group is the second cell group, or when a radio network temporary identifier used to scramble the downlink control information format is the second identifier, the second cell group includes the first cell group.

[0023] With reference to the first aspect or the second aspect, in some implementations, the downlink control information format further includes a second indicator field, and when a radio network temporary identifier used to scramble the downlink control information format is the second identifier, using the first indicator field to determine a first cell group among the at least two cell groups includes using a combination of the first indicator field and the second indicator field to determine the first cell group among the second cell group.

[0024] In the above solution, when the radio network identifier is a first identifier, the first cell group is determined based on the first indicator field, or when the radio network identifier is a second identifier, the first cell group is determined based on a combination of the first indicator field and the second indicator field. In one aspect, the same downlink control information format supports different types of scheduling for multiple cells. In another aspect, when the radio network temporary identifiers are different, the first indicator field in the downlink control information format can indicate different cells by using the same value, thereby further reducing overhead of the downlink control information format.

[0025] According to a third aspect, there is provided a cell scheduling method, which may be performed by a terminal device or a component (e.g., a chip or circuit) of the terminal device, without being limited thereto.

[0026] The method includes a terminal device receiving a first downlink control information format from a network device, the first downlink control information format being used for scheduling a plurality of cells, and a radio network temporary identifier used to scramble the first downlink control information format including one of the following: a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier, or the radio network temporary identifier used to scramble the first downlink control information format including one of the following: enabling or disabling a semi-persistent scheduling physical downlink data channel, enabling or disabling a semi-persistent scheduling physical uplink data channel, and, if a first indicator field in the first downlink control information format indicates at least two cells, the terminal device determining, based on the radio network temporary identifier and the first indicator field, that the first downlink control information format is invalid.

[0027] In the above solution, the downlink control information format supports the scheduling of multiple cells, but does not support the scheduling of more than one cell, i.e., only the scheduling of one cell, if the downlink control information format used to schedule multiple cells is scrambled by using a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier, or if the downlink control information format used to schedule multiple cells is scrambled by using a radio network temporary identifier corresponding to one of the following: enabling or disabling a semi-persistent scheduling physical downlink data channel, enabling or disabling a semi-persistent scheduling physical uplink data channel, retransmission of a semi-persistent scheduling physical downlink data channel, retransmission of a semi-persistent scheduling physical uplink data channel, enabling or disabling a configuration grant physical uplink data channel transmission, enabling or disabling a configuration grant physical downlink data channel transmission, retransmission of a configuration grant physical uplink data channel transmission, retransmission of a configuration grant physical downlink data channel transmission, or enabling or disabling semi-persistent channel state information. Different types of scheduling for multiple cells are supported by one downlink control information format by using a first indicator field and a radio network temporary identifier in the downlink control information format, thereby reducing the overhead of the downlink control information format.

[0028] According to a fourth aspect, there is provided a cell scheduling method. The method may be performed by a network device or a component (e.g., a chip or circuit) of the network device. This is not limiting. For advantageous effects of the fourth aspect, please refer to the third aspect.

[0029] The method may include: the network device determining that a radio network temporary identifier used to scramble a first downlink control information format includes one of the following: a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier, and the first downlink control information format is used to schedule multiple cells; the network device determining that a first indicator field in the first downlink control information format can indicate only one cell; and the network device transmitting the first downlink control information format to the terminal device.

[0030] According to a fifth aspect, there is provided a cell scheduling method, which may be performed by a terminal device or a component (e.g., a chip or circuit) of the terminal device, without being limited thereto.

[0031] The method may include: a terminal device receiving, from a network device, a downlink control information format that is scrambled by using a first radio network temporary identifier, the downlink control information format being used to schedule a plurality of cells; and the terminal device determining, among the plurality of cells, a portion of cells that correspond to the first radio network temporary identifier.

[0032] With reference to the fifth aspect, in some implementations of the fifth aspect, the downlink control information format includes a third indicator field, the third indicator field indicating a second wireless network temporary identifier, and the method further includes the terminal device determining, among the plurality of cells, a portion of cells that corresponds to the second wireless network temporary identifier.

[0033] In the above solution, an indicator field indicating a radio network temporary identifier is newly added to the downlink control information format, and the radio network temporary identifier indicated by the indicator field is different from the radio network temporary identifier used to scramble the downlink control information format. The downlink control information format can perform different scheduling based on the above different radio network temporary identifiers for a plurality of cells. This realizes that one downlink control information format schedules a plurality of cells and reduces the overhead of the downlink control information format.

[0034] Referring to the fifth aspect, in some implementations of the fifth aspect, the plurality of cells includes N cells. Further, the plurality of cells are N cells, and a part of the cells corresponding to the first radio network temporary identifier is M cells among the N cells, where N≥2, N is an integer, 0≤M≤N, M is an integer, or 0<M<N, M is an integer, or 0<M≤N, M is an integer. The M cells are indicated by upper layer signaling. Alternatively, the M cells are the M cells having the largest or smallest cell sequence number among the N cells, or when M = 1, the M cell is the cell in which the terminal device receives the downlink control information format, that is, the scheduling cell or the scheduling dominant cell. Alternatively, when M = 1 and the cell in which the terminal device receives the downlink control information format, that is, the scheduling cell or the scheduling dominant cell, does not belong to the N cells, the M cells are indicated by upper layer signaling, or the M cells are the cells having the largest or smallest cell sequence number among the N cells, and the upper layer signaling is received by the terminal device from the network device.

[0035] With reference to the fifth aspect, in some implementations of the fifth aspect, the portion of the cells corresponding to the second radio network temporary identifier being NM cells includes the third indicator field indicating, at a cell granularity, the second radio network temporary identifier corresponding to the NM cells, or the third indicator field indicating, at a cell group granularity, the second radio network temporary identifier of each cell group among the NM cells.

[0036] With reference to the fifth aspect, in some implementations of the fifth aspect, the downlink control information includes a carrier indicator field, the carrier indicator field indicates a plurality of cells, and the carrier indicator field and the third indicator field are jointly encoded by the network device.

[0037] With reference to the fifth aspect, in some implementations of the fifth aspect, the first radio network temporary identifier indicates one of the following: dynamic scheduling of a physical downlink data channel, dynamic scheduling of a physical uplink data channel, enabling or disabling a semi-persistent scheduling physical downlink data channel, enabling or disabling a semi-persistent scheduling physical uplink data channel, retransmission of a semi-persistent scheduling physical downlink data channel, retransmission of a semi-persistent scheduling physical uplink data channel, enabling or disabling a configuration grant physical uplink data channel transmission, enabling or disabling a configuration grant physical downlink data channel transmission, retransmission of a configuration grant physical uplink data channel transmission, retransmission of a configuration grant physical downlink data channel transmission, or enabling or disabling of semi-persistent channel state information corresponding to the portion of the cell corresponding to the first radio network temporary identifier. Alternatively, the first radio network temporary identifier is at least one of the following: a cell radio network temporary identifier, a modulation and coding scheme radio network temporary identifier, a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier.

[0038] According to the sixth aspect, a cell scheduling method is provided. The method may be executed by a network device or alternatively by a component of the network device (such as a chip or a circuit). This is not limited. For the advantageous effects of the sixth aspect, refer to the advantageous effects of the fourth aspect. Details are not described here.

[0039] The method includes that the network device scrambles a downlink control information format based on a first radio network temporary identifier, the downlink control information format is used for scheduling a plurality of cells, and the first radio network temporary identifier corresponds to a part of the cells among the plurality of cells, and that the network device transmits the downlink control information format to a terminal device.

[0040] Referring to the sixth aspect, in some implementations of the sixth aspect, a third indicator field in the downlink control information format indicates a second radio network temporary identifier, and the second radio network temporary identifier corresponds to a part of the cells among the plurality of cells.

[0041] Referring to the sixth aspect, in some implementations of the sixth aspect, a part of the cells corresponding to the first radio network temporary identifier is M cells among N cells, where N≥2, N is an integer, 0≤M≤N, M is an integer, and further, 0<M<N, M is an integer, or 0<M≤N, M is an integer. The M cells are the M cells with the largest or smallest cell sequence numbers among the N cells. Alternatively, when M = 1, the M cells are the cell in which the terminal device receives the downlink control information format, that is, the scheduling cell or the scheduling dominant cell. Alternatively, the method further includes that the network device transmits upper layer signaling to the terminal device, and the upper layer signaling indicates the M cells.

[0042] With reference to the sixth aspect, in some implementations of the sixth aspect, the portion of the cells corresponding to the second radio network temporary identifier are NM cells among the N cells, and the third indicator field in the downlink control information format indicating the second radio network temporary identifier includes the third indicator field indicating, at a cell granularity, the second radio network temporary identifier corresponding to the NM cells, or the third indicator field indicating, at a cell group granularity, the second radio network temporary identifier of each cell group among the NM cells.

[0043] With reference to the sixth aspect, in some implementations of the sixth aspect, the downlink control information includes a carrier indicator field, the carrier indicator field indicates a plurality of cells, and the carrier indicator field and the third indicator field are jointly encoded by the network device.

[0044] With reference to the sixth aspect, in some implementations of the sixth aspect, the first radio network temporary identifier indicates one of the following: dynamic scheduling of a physical downlink data channel, dynamic scheduling of a physical uplink data channel, enabling or disabling a semi-persistent scheduling physical downlink data channel, enabling or disabling a semi-persistent scheduling physical uplink data channel, retransmission of a semi-persistent scheduling physical downlink data channel, retransmission of a semi-persistent scheduling physical uplink data channel, enabling or disabling a configuration grant physical uplink data channel transmission, enabling or disabling a configuration grant physical downlink data channel transmission, retransmission of a configuration grant physical uplink data channel transmission, retransmission of a configuration grant physical downlink data channel transmission, or enabling or disabling of semi-persistent channel state information corresponding to the portion of the cell corresponding to the first radio network temporary identifier. Alternatively, the first radio network temporary identifier is at least one of the following: a cell radio network temporary identifier, a modulation and coding scheme radio network temporary identifier, a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier.

[0045] According to a seventh aspect, there is provided a cell scheduling method, which may be performed by a terminal device or a component (e.g., a chip or circuit) of the terminal device, without being limited thereto.

[0046] The method may include: a terminal device receiving configuration information of a downlink control information format from a network device, the downlink control information format being used to schedule a plurality of cells; and the terminal device receiving the downlink control information format by using a radio network temporary identifier, wherein the radio network temporary identifier does not include a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier, or the radio network temporary identifier does not correspond to enabling or disabling a semi-persistent scheduling physical downlink data channel, enabling or disabling a semi-persistent scheduling physical uplink data channel, retransmission of a semi-persistent scheduling physical downlink data channel, retransmission of a semi-persistent scheduling physical uplink data channel, enabling or disabling a configuration grant physical uplink data channel transmission, enabling or disabling a configuration grant physical downlink data channel transmission, retransmission of a configuration grant physical uplink data channel transmission, retransmission of a configuration grant physical downlink data channel transmission, or enabling or disabling of semi-persistent channel state information.

[0047] In the above solution, in the case of the radio network temporary identifier of the non-dynamically scheduled cell, the downlink control information format used for scheduling multiple cells is not configured, so that the overhead of the downlink control information format can be reduced when dynamic scheduling is performed for multiple cells by using the downlink control information.

[0048] According to an eighth aspect, there is provided a cell scheduling method. The method may be performed by a network device or a component (e.g., a chip or circuit) of the network device. This is not limiting. For advantageous effects of the eighth aspect, please refer to the seventh aspect.

[0049] The method may include: a network device transmitting configuration information of a downlink control information format to a terminal device, the downlink control information format being used for scheduling a plurality of cells; and the network device transmitting the downlink control information format to the terminal device, the downlink control information format being scrambled by using a radio network temporary identifier, wherein the radio network temporary identifier does not include a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier, or the radio network temporary identifier does not correspond to enabling or disabling a semi-persistent scheduling physical downlink data channel, enabling or disabling a semi-persistent scheduling physical uplink data channel, retransmission of a semi-persistent scheduling physical downlink data channel, retransmission of a semi-persistent scheduling physical uplink data channel, enabling or disabling a configuration grant physical uplink data channel transmission, enabling or disabling a configuration grant physical downlink data channel transmission, retransmission of a configuration grant physical uplink data channel transmission, retransmission of a configuration grant physical downlink data channel transmission, or enabling or disabling of semi-persistent channel state information.

[0050] According to a ninth aspect, there is provided a cell scheduling method, which may be performed by a terminal device or a component (e.g., a chip or circuit) of the terminal device, without being limited thereto.

[0051] The method may include: a terminal device receiving a downlink control information format from a network device, the downlink control information including a first indicator field and a fourth indicator field, the first indicator field indicating a plurality of cells; and the terminal device determining a fourth cell group among the plurality of cells based on a combination of the first indicator field and the fourth indicator field.

[0052] In the above solution, the fourth cell group is determined based on a combination of the first indicator field and the fourth indicator field. If the fourth indicator field is a protocol preset special field, the number of bits of the first indication information can be reduced, thereby reducing the number of bits of the downlink control information format and reducing overhead.

[0053] According to a tenth aspect, there is provided a cell scheduling method. The method may be performed by a network device or a component (e.g., a chip or circuit) of the network device. This is not limiting. For advantageous effects of the tenth aspect, please refer to the ninth aspect.

[0054] The method may include: the network device determining to indicate a fourth cell group by using a combination of a first indicator field and a fourth indicator field included in a downlink control information format, where the first indicator field indicates a plurality of cells, and the plurality of cells includes the fourth cell group; and the network device transmitting the downlink control information format to the terminal device.

[0055] According to an eleventh aspect, there is provided a communication device configured to perform any one of the methods of the first to seventh aspects. Specifically, the device may include units and / or modules, such as a processing unit and / or a communication unit, configured to perform any one of the methods of the first to seventh aspects.

[0056] In implementation, the apparatus is a communication device (e.g., a network device or a terminal device). When the apparatus is a communication device, the communication unit may be a transceiver or an input / output interface, and the processing unit may be at least one processor. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0057] In other implementations, the apparatus is a chip, chip system, or circuit used in a communications device (e.g., a network device or a terminal device). When the apparatus is a chip, chip system, or circuit used in a communications device, the communications unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, associated circuitry, etc. of the chip, chip system, or circuit, and the processing unit may be at least one processor, processing circuit, logic circuit, etc.

[0058] According to a twelfth aspect, there is provided a communications device. The device includes at least one processor configured to execute a computer program or instructions stored in a memory to perform a method of any one of the possible implementations of the first to seventh aspects. Optionally, the device further includes a memory configured to store the computer program or instructions. Optionally, the device further includes a communications interface through which the processor reads the computer program or instructions stored in the memory.

[0059] In an implementation, the apparatus is a communication device (eg, a network device or a terminal device).

[0060] In other implementations, the apparatus is a chip, chip system, or circuit used in a communications device (eg, a network device or a terminal device).

[0061] According to a thirteenth aspect, there is provided a processor configured to perform the method provided in the previous aspect.

[0062] Transmitting, acquiring / receiving, and other operations associated with a processor may be understood as outputting, receiving / inputting, and other operations performed by the processor, or transmitting and receiving operations performed by radio frequency circuits and antennas, unless otherwise specified or unless the operations are inconsistent with the actual functionality or internal logic of the operations in the associated description.

[0063] According to a fourteenth aspect, there is provided a computer-readable storage medium having stored thereon program code that is executed by a user device, the program code being used to perform any one of the possible implementations of the first to seventh aspects.

[0064] According to a fifteenth aspect, there is provided a computer program product comprising instructions which, when executed on a computer, enable the computer to carry out any one of the possible implementations of the first to seventh aspects.

[0065] According to a sixteenth aspect, there is provided a chip including a processor and a communication interface, wherein the processor reads instructions stored in a memory via the communication interface to perform the method of any one of the first to seventh aspects.

[0066] Optionally, in implementations, the chip may further include a memory, the memory storing instructions, and the processor configured to execute the instructions stored in the memory, which, when executed, configures the processor to perform the method of any of the first to seventh aspects. [Brief explanation of the drawings]

[0067] [Figure 1] 1 is a diagram of the architecture of a mobile communication system to which embodiments of the present application apply; [Figure 2] 1 is a diagram of a cell scheduling method 100 according to the present application. [Figure 3] 1 is a diagram of a cell scheduling method 100' according to the present application. [Figure 4] 1 is a diagram of a cell scheduling method 200 according to the present application. [Figure 5] 1 is a diagram of a cell scheduling method 300 according to the present application. [Figure 6] FIG. 2 is a diagram of an example of a downlink control information format according to the present application. [Figure 7] 4 is a diagram of a cell scheduling method 400 according to the present application. [Figure 8] 5 is a diagram of a cell scheduling method 500 according to the present application. [Figure 9] 6 is a diagram of a cell scheduling device 600 to which the present application is applied. [Figure 10] FIG. 7 is a diagram of another cell scheduling device 700 to which the present application applies. [Figure 11] FIG. 8 is a diagram of a chip system 800 to which the present application applies. DETAILED DESCRIPTION OF THE INVENTION

[0068] The following describes the technical solutions in the embodiments of the present application with reference to the accompanying drawings.

[0069] FIG. 1 is an architecture diagram of a mobile communication system to which an embodiment of the present application is applied. As shown in FIG. 1, the mobile communication system includes a core network device 100, a radio access network device 110, and at least one terminal device (e.g., terminal device 120 and terminal device 130 in FIG. 1). The terminal device is connected to the radio access network device wirelessly, and the radio access network device is connected to the core network device wirelessly or in a wired manner. The core network device and the radio access network device may be separate and distinct physical devices, or the core network device's functions and the radio access network device's logical functions may be integrated into the same physical device, or some of the core network device's functions and some of the radio access network device's functions may be integrated into one physical device. The terminal device may be located at a fixed location or may be mobile. FIG. 1 is an exemplary diagram only. The communication system may further include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 1. The number of core network devices, radio access network devices, and terminal devices included in the mobile communication system is not limited in this embodiment of the present application.

[0070] The radio access network device is an access device for a terminal device to wirelessly access a mobile communication system, and may be a base station NodeB in an NR mobile communication system, an evolved base station eNodeB, a base station gNodeB, or a base station in a future mobile communication system, or an access node in a Wi-Fi system, etc. The specific technology and specific device form used by the radio access network device are not limited in this embodiment of the present application.

[0071] The terminal device may also be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The terminal device may be a mobile phone, a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc.

[0072] The radio access network devices and terminal devices may be deployed on the ground, including indoor or outdoor devices, handheld devices, or vehicle-mounted devices, or may be deployed on water, or may be deployed on airplanes, balloons, and satellites in the air. The application scenarios of the radio access network devices and terminal devices are not limited by the embodiments of the present application.

[0073] The embodiments of the present application are applicable to downlink signal transmission, uplink signal transmission, and even device-to-device (D2D) signal transmission. In the case of downlink signal transmission, the transmitting device is a radio access network device, and correspondingly, the receiving device is a terminal device. In the case of uplink signal transmission, the transmitting device is a terminal device, and correspondingly, the receiving device is a radio access network device. In the case of D2D signal transmission, the transmitting device is a terminal device, and correspondingly, the receiving device is also a terminal device. The signal transmission direction is not limited in the embodiments of the present application.

[0074] Communications between radio access network devices and terminal devices, and communications between terminal devices, may be performed using licensed spectrum, unlicensed spectrum, or both licensed and unlicensed spectrum. Spectrum below 6 GHz, spectrum above 6 GHz, or both spectrum below 6 GHz and spectrum above 6 GHz may be used for communications between radio access network devices and terminal devices, and between terminal devices. The spectrum resources used by radio access network devices and terminal devices are not limited in the embodiments of the present application.

[0075] To facilitate understanding of the embodiments of the present application, some technical terms used in the present application will be explained below.

[0076] 1. Cell and Carrier: A cell is described from the perspective of resource management or mobility management by a higher layer (e.g., a protocol layer above the physical layer, such as a radio resource control layer or a medium access control layer). The coverage of each network device can be divided into one or more cells. In the current NR standard, one downlink carrier can be configured in one cell, and optionally, at least one uplink carrier is also configured in one cell. Cell is a general term. In the case of a terminal device, the cell that serves the terminal device is called the serving cell. The cell in this application may alternatively be the serving cell.

[0077] 2.RNTI In an NR system, downlink control information (DCI) is appended with a cyclic redundancy check (CRC) and then transmitted on a downlink control channel (PDCCH). The CRC appended to the DCI is scrambled by using a radio network temporary indicator (RNTI).

[0078] In this application, there are four types of RNTIs used to scramble DCI: cell-RNTI (C-RNTI), modulation and coding scheme RNTI (MCS-C-RNTI), configured scheduling RNTI (CS-RNTI), and semi-persistent channel state information RNTI (SP-CSI-RNTI). Both DCI scrambled using C-RNTI and DCI scrambled using MCS-C-RNTI are used for dynamic scheduling of the physical downlink shared channel (PDSCH) / physical uplink shared channel (PUSCH). However, the modulation and coding scheme used for data scheduled by DCI scrambled using C-RNTI is different from the modulation and coding scheme used for data scheduled by DCI scrambled using MCS-C-RNTI. The modulation and coding scheme corresponding to the MCS-C-RNTI results in a lower code rate. DCI scrambled by using the CS-RNTI is used for enabling / disabling / retransmission of semi-persistent scheduling PDSCH or configured grant PUSCH transmission. A PDCCH whose CRC is scrambled by using the CS-RNTI or group configured scheduling RNTI (G-CS-RNTI) and carries DCI with a special field set to a special value specified in the protocol may indicate enabling / disabling of semi-persistent scheduling PDSCH or configured grant PUSCH transmission.The DCI, which is scrambled by using the SP-CSI-RNTI, is used to enable / disable the semi-persistent channel state information report carried on the PUSCH. For a detailed description of the above four types of RNTI, please refer to protocol TS38.321.

[0079] Currently, PDSCHs of different cells are individually scheduled by different DCLs. Similarly, PUSCHs of different cells are individually scheduled by different DCIs. When PDSCHs or PUSCHs of multiple cells are scheduled, the required overhead of DCI is very high. Therefore, how to reduce the overhead of DCI formats when PDSCHs or PUSCHs of multiple cells need to be scheduled has become an urgent problem to be solved.

[0080] In view of this, the present application provides a solution in which one DCI format schedules multiple cells based on an indicator field in a downlink control information format and a radio network temporary identifier, thereby reducing DCI overhead and improving communication efficiency.

[0081] With reference to the accompanying drawings, the following will describe in detail the cell scheduling provided in the embodiments of the present application. The embodiments provided in the present application may be applied to the network architecture shown in FIG. 1. This is not limited. All cells in the present application may be replaced by carriers. A general description is given here. Optionally, all cells in the method 100 are cells for transmission in the same direction. For example, all cells are cells used for downlink transmission, or all cells are cells used for uplink transmission.

[0082] 2 is a diagram of the present cell scheduling method 100. Since different radio network temporary identifiers correspond to different cell groups (including at least one cell), one downlink control information format can schedule multiple cells based on the first indicator field in the downlink control information format and the radio network temporary identifier.

[0083] S101: A network device sends a downlink control information format to a terminal device, and the terminal device receives a downlink control information format from the network device accordingly.

[0084] The downlink control information format (DCI format) here is used to schedule multiple cells. The DCI format in this embodiment of the present application can also be understood as a DCI or a DCI within a DCI format. Multiple cells can be scheduled simultaneously by this DCI format. Here, a general description is given, and the details will not be described again below.

[0085] A general description of scheduling one cell using one DCI format is given here, and details will not be described again below. The DCI format schedules the cell, and the downlink control information format performs at least one of the following scheduling: dynamic scheduling of transmission of physical downlink data channels in the cell, dynamic scheduling of transmission of physical uplink data channels in the cell, enabling or disabling a semi-persistently scheduled physical downlink data channel in the cell, enabling or disabling a semi-persistently scheduled physical uplink data channel in the cell, retransmission of a semi-persistently scheduled physical downlink data channel in the cell, retransmission of a semi-persistently scheduled physical uplink data channel in the cell, enabling or disabling a configuration grant physical uplink data channel transmission in the cell, enabling or disabling a configuration grant physical downlink data channel transmission in the cell, retransmission of a configuration grant physical uplink data channel transmission in the cell, retransmission of a configuration grant physical downlink data channel transmission in the cell, or enabling or disabling semi-persistent channel state information in the cell. One downlink control information format schedules multiple cells. The downlink control information format may perform at least one of the above scheduling for one of the multiple cells, and may perform the same or different types of scheduling for any two different cells among the multiple cells.

[0086] Alternatively, S101 may be that the network device sends a downlink control information format to the terminal device, and the terminal device correspondingly receives a downlink control information format from the network device, where the downlink control information format schedules the first cell group.

[0087] S102: The terminal device determines a first cell group scrambled by the downlink control information format based on a radio network temporary identifier used to scramble the downlink control information format and a first indicator field in the downlink control information format.

[0088] The wireless network temporary identifier belongs to one of at least two wireless network temporary identifiers, the at least two wireless network temporary identifiers correspond to at least two cell groups, each of the at least two wireless network temporary identifiers corresponds to at least one cell group, and the first indicator field is used to determine a first cell group among the at least two cell groups.

[0089] For example, the first indicator field here may be a carrier indicator field (CIF) or a carrier group indicator field.

[0090] Optionally, before S101, the method 100 further includes step 1: the network device determines to scramble the downlink control information format by using a radio network temporary identifier corresponding to a first cell group, the radio network temporary identifier belonging to one of at least two radio network temporary identifiers, the at least two radio network temporary identifiers corresponding to at least two cell groups, each of the at least two radio network temporary identifiers corresponding to at least one cell group, and the first cell group belonging to the at least one cell group corresponding to the radio network temporary identifier; the network device determines to indicate the first cell group among the at least one cell group corresponding to the radio network temporary identifier by using a first indicator field included in the downlink control information format.

[0091] Optionally, the method 100 further includes step 2: the network device sends upper layer signaling to the terminal device, and correspondingly, the terminal device receives upper layer signaling from the network device, the upper layer signaling indicating a correspondence between at least two wireless network temporary identifiers and at least one cell group.

[0092] In examples, the higher layer signaling here may be a radio resource control (RRC) message or a medium access control-control element (MAC-CE) message.

[0093] In other examples, the correspondence indicates a correspondence between at least one cell group and at least two radio network temporary identifiers, where any cell group among the at least one cell group corresponds to only one radio network temporary identifier, one radio network temporary identifier may correspond to one or more of the N cell groups, and two radio network identifiers may individually correspond to different numbers of cell groups.

[0094] The at least two wireless network temporary identifiers may include a first identifier and a second identifier.

[0095] The first identifier may be understood as one type of identifier, and the second identifier may be understood as another type of identifier.

[0096] For example, the first identifier indicates dynamic scheduling corresponding to a first cell, and the second identifier indicates dynamic scheduling corresponding to a second cell.

[0097] The following provides a general description of dynamic scheduling and non-dynamic scheduling in this application. Dynamic scheduling can be understood as scheduling performed by a physical layer downlink control channel or physical layer downlink control information, e.g., DCI. Non-dynamic scheduling can be understood as semi-persistent scheduling and periodic scheduling. Scheduling information for semi-persistent scheduling is configured by a network device via RRC signaling, and scheduling corresponding to the scheduling information is enabled or disabled by the DCI. Alternatively, a portion of the scheduling information for semi-persistent scheduling is configured by a network device via RRC signaling, and the other portion is indicated by the DCI. The DCI also enables scheduling corresponding to these two portions of scheduling information. The DCI can also be used to disable enabled scheduling. Information regarding periodic scheduling is configured by a network device via RRC signaling.

[0098] Specifically, the first identifier indicates at least one of the following: dynamic scheduling of a physical downlink data channel or dynamic scheduling of a physical uplink data channel corresponding to the first cell group. The second identifier indicates at least one of the following: enabling or disabling a semi-persistently scheduled physical downlink data channel, enabling or disabling a semi-persistently scheduled physical uplink data channel, retransmission of a semi-persistently scheduled physical downlink data channel, retransmission of a semi-persistently scheduled physical uplink data channel, enabling or disabling a configured grant physical uplink data channel transmission, enabling or disabling a configured grant physical downlink data channel transmission, retransmission of a configured grant physical uplink data channel transmission, retransmission of a configured grant physical downlink data channel transmission, or enabling or disabling semi-persistent channel state information corresponding to the first cell group.

[0099] For example, the first identifier may be an MCS-C-RNTI or a C-RNTI.

[0100] For example, the second identifier is a CS-RNTI if the second identifier indicates enabling or disabling a semi-persistently scheduled physical downlink data channel, enabling or disabling a semi-persistently scheduled physical uplink data channel, enabling or disabling a configured grant physical uplink data channel transmission, or enabling or disabling a configured grant physical downlink data channel transmission.

[0101] For example, the second identifier may be a G-CS-RNTI if the second identifier indicates a retransmission of a semi-persistently scheduled physical downlink data channel, a retransmission of a semi-persistently scheduled physical uplink data channel, a retransmission of a configured grant physical downlink data channel transmission, or a retransmission of a configured grant physical uplink data channel transmission.

[0102] For example, the second identifier may be an SP-CSI-RNTI, in which case the second identifier indicates enabling or disabling of semi-persistent channel state information.

[0103] It should be noted that in an NR system, the physical downlink data channel in this application is a physical downlink shared channel, and the physical uplink data channel in this application is a physical uplink shared channel. A general description is given, and the details will not be described again below.

[0104] Based on different understandings of "the correspondence between at least two wireless network temporary identifiers and at least one cell group", the following provides two possible implementations of S102.

[0105] Action 1: In S102, after the radio network temporary identifier used to scramble the downlink control information format is determined, a cell group may be determined based on the first indicator field, and the cell group may be understood as a first cell group. If the radio network temporary identifier used to scramble the downlink control information format is different, the cell group indicated by the first indicator field is different. If the radio network temporary identifier used to scramble the downlink control information format is different, even if the value of the first indicator field is the same, the scheduled cell indicated by the first indicator field may be different.

[0106] Table 1 shows an example of correspondence between a first indicator field, at least two radio network temporary identifiers, and a first cell group. As shown in Table 1, for example, the at least two radio network temporary identifiers are a first identifier and a second identifier. Values #1 to #3 are individually possible values of the first indicator field, and cell group #1 to cell group #6 are individually possible examples of the first cell group. Cell group #1 to cell group #3 are an example of at least one cell group corresponding to the first identifier, and cell group #4 to cell group #6 are an example of at least one cell group corresponding to the second identifier. Cell group #1 to cell group #6 are used as examples of at least two cell groups corresponding to at least two radio network temporary identifiers. [Table 1]

[0107] Alternatively, Table 1 may be represented as two tables, one containing columns 1 and 2 of Table 1, and the other containing columns 2 and 3 of Table 1. Alternatively, Table 1 may be represented in other formats, and this is not a limitation of the present application.

[0108] It should be noted that Table 1 is merely an example table for facilitating understanding of this embodiment of the present application, and is not intended to limit the correspondences shown in Table 1. For example, it is not limited that the correspondences may be expressed only in the form of a mapping table. For example, it is not limited that the at least one cell group includes three cell groups. For example, it is not limited that different identifiers correspond to the same number of cell groups. As another example, it is not limited that the first indicator field indicates only one value each time.

[0109] The following provides an example in which the first indicator field is used to determine a first cell group among at least two cell groups.

[0110] Example 1-1: In S102, it is assumed that the radio network temporary identifier is a first identifier and the value of the first indicator field in the downlink control information format is value #2. In this case, the first cell group determined by the terminal device is cell group #2. The first indicator field is used to determine cell group #2 from cell group #1 to cell group #6.

[0111] Example 1-2: In S102, it is assumed that the radio network temporary identifier used to scramble the downlink control information format is the second identifier, the value of the first indicator field in the downlink control information format is value #2, and the first cell group determined by the terminal device is cell group #5. The first indicator field is used to determine cell group #5 from cell group #1 to cell group #6.

[0112] For example, when the radio network temporary identifier is the first identifier, the first cell group includes at least one cell group, and when the radio network temporary identifier is the second identifier, the first cell group is one cell.

[0113] Example 2-1: The first indicator field contains K bits, where K ≥ 1 and K is an integer. When the radio network temporary identifier is the first identifier, L1 values of the first indicator field respectively correspond to L1 cell groups, each of the L1 cell groups contains at least one cell, the L1 cell groups include the first cell group, and L1 is an integer. When the radio network temporary identifier is the second identifier, L2 values of the first indicator field respectively correspond to L2 cell groups, the L2 cell groups include the first cell group, and L2 is an integer. Specifically, when L1 ≥ L2, 2 K-1 <L1 ≤ 2 K and 1 ≤ L2 ≤ 2 K or when L1 < L2, 1 ≤ L1 < 2 K and 2 K-1 <L2 ≤ 2 K is satisfied.

[0114] Example 2-2: The first indicator field contains 2 bits. When the DCI format is scrambled by using C-RNTI / MCS-C-RNTI, the value of the first indicator field is 00, indicating scheduling of cell 1 and cell 2; the value of the first indicator field is 01, indicating scheduling of cell 2 and cell 3; the value of the first indicator field is 10, indicating scheduling of cell 1 and cell 4; or the value of the first indicator field is 11, indicating scheduling of cell 1 and cell 4. When the DCI is scrambled by using CS-RNTI / G-CS-RNTI / SP-CSI-RNTI, the value of the first indicator field is 00, indicating scheduling of cell 1 and cell 3; the value of the first indicator field is 01, indicating scheduling of cell 2 and cell 4; the value of the first indicator field is 10, indicating scheduling of cell 3; or the value of the first indicator field is 11, indicating scheduling of cell 4.

[0115] In Example 2-2, it should be understood that when the radio network temporary identifier is the second identifier, the cell group included in the L2 cell groups may include only one cell or may include multiple cells.

[0116] As another example, each of the L1 cell groups includes at least one cell when the radio network temporary identifier is the first identifier, and each of the L2 cell groups is one cell when the radio network temporary identifier is the second identifier.

[0117] Example 2-3: The first indicator field includes 2 bits. When the DCI format is scrambled by using C-RNTI / MCS-C-RNTI, the value of the first indicator field is 00, indicating that cell 1 and cell 2 are scheduled; the value of the first indicator field is 01, indicating that cell 2 and cell 3 are scheduled; the value of the first indicator field is 10, indicating that cell 1 and cell 4 are scheduled; or the value of the first indicator field is 11, indicating that cell 2 and cell 4 are scheduled. When the DCI format is scrambled by using CS-RNTI / G-CS-RNTI / SP-CSI-RNTI, the value of the first indicator field is 00, indicating that cell 1 is scheduled; the value of the first indicator field is 01, indicating that cell 2 is scheduled; the value of the first indicator field is 10, indicating that cell 3 is scheduled; or the value of the first indicator field is 11, indicating that cell 4 is scheduled.

[0118] In the above solution, different radio network temporary identifiers correspond to different cell groups, and each radio network temporary identifier corresponds to at least one cell group. Multiple cells can be scheduled using one downlink control information format by using a first indicator field in the downlink control information format and the radio network temporary identifier. This reduces the overhead of the downlink control information format. Also, when the radio network temporary identifiers are different, the first indicator field in the downlink control information format can indicate different cells by using the same value. On the one hand, the same downlink control information format supports different types of scheduling for multiple cells. On the other hand, setting different indicator fields in the downlink control information format for different radio network temporary identifiers is avoided, thereby further reducing the overhead of the downlink control information format.

[0119] Action 2: At S102, the first indicator field is used to determine a second cell group among the at least two cell groups. The terminal device first determines the second cell group based on the first indicator field and a radio network temporary identifier used to scramble the downlink control information format. If the radio network temporary identifier is the first identifier, the first cell group is the second cell group. Alternatively, if the radio network temporary identifier is the second identifier, the second cell group includes the first cell group. In other words, the first cell group is a subset of the second cell group.

[0120] For example, as described in S102, the higher layer signaling indicates a correspondence between at least one cell group and at least two radio network temporary identifiers. In Implementation 2, the correspondence between the at least one cell group and the at least two radio network temporary identifiers may be understood as any one cell group in the at least one cell group corresponding to the at least two radio network temporary identifiers, and the at least one cell group including the second cell group. See, for example, Table 3.

[0121] For example, the correspondence between the second cell group and the first indicator field is indicated by higher layer signaling.

[0122] Optionally, in step 1, the downlink control information format further includes a second indicator field, and the network device determines a first cell group in the at least one cell group corresponding to the wireless network temporary identifier by using a combination of the first indicator field and the second indicator field.

[0123] Table 2 shows an example of correspondence between a first indicator field, at least two radio network temporary identifiers, and a first cell group. As shown in Table 2, for example, the at least two radio network temporary identifiers are a first identifier and a second identifier. Values #4 to #6 are individual possible values of the first indicator field. Cell group #7 to cell group #9 are an example of at least one cell group corresponding to the first identifier, and a subset of cell group #7 to a subset of cell group #9 are an example of at least one cell group corresponding to the second identifier. Cell group #7 to cell group #9 and a subset of cell group #7 to a subset of cell group #9 are used as examples of at least two cell groups corresponding to at least two radio network temporary identifiers. [Table 2]

[0124] It should be noted that Table 2 is merely an example table for facilitating understanding of this embodiment of the present application, and is not intended to limit the correspondences shown in Table 2. For example, it is not limited that the correspondences may be expressed only in the form of a mapping table. For example, it is not limited that the at least one cell group includes three cell groups. For example, it is not limited that different identifiers correspond to the same number of cell groups. As another example, it is not limited that the first indicator field indicates only one value each time.

[0125] Example 4: At S102, when the radio network temporary identifier is the first identifier, the terminal device determines a second cell group (i.e., the first cell group) based on the first indicator field and the radio network temporary identifier used to scramble the downlink control information format, with reference to Table 3. When the radio network temporary identifier is the second identifier, the terminal device determines the second cell group based on the first indicator field and the radio network temporary identifier used to scramble the downlink control information format, with reference to Table 3. With reference to Table 4, the first cell group is determined based on the second cell group and the second indicator field. In other words, when the radio network temporary identifier is the second identifier, a combination of the first indicator field and the second indicator field is used to determine the first cell group from among the second cell group.

[0126] Table 3 shows an example of correspondence between the first indicator field, at least two radio network temporary identifiers, and the second cell group. As shown in Table 3, for example, the at least two radio network temporary identifiers are the first identifier and the second identifier. Values #4 to #6 are individually possible values of the first indicator field. Cell group #7 to cell group #9 are possible examples of the second cell group. For example, if the first indicator field is value #6, the terminal device determines that the second cell group is cell group # based on the first indicator field and the radio network temporary identifier used to scramble the downlink control information format. If the radio network temporary identifier is the first identifier, the first cell group is cell group #9.

[0127] Table 4 shows an example of the correspondence between the second identifier, the second cell group, the second indicator field, and the first cell group. As shown in Table 4, cell group #7 to cell group #9 are second cell groups corresponding to the second identifier, and a subset of cell group #7 to a subset of cell group #9 are individually first cell groups determined based on the second cell group and the second indicator field. For example, if the radio network temporary identifier is the second identifier and the value of the first indicator field is value #6, the terminal device may determine that the first cell group is a subset of cell group #9 based on the combination of the first indicator field and the second indicator field. [Table 3] [Table 4]

[0128] Alternatively, Table 3 and Table 4 may be expressed as one table, or may be expressed in other formats, which is not a limitation of the present application.

[0129] It should be noted that Tables 3 and 4 are merely exemplary tables for facilitating understanding of this embodiment of the present application, and are not intended to limit the correspondences shown in Tables 3 and 4. For example, it is not limited that the correspondences may be expressed only in the form of a mapping table. For example, it is not limited that the at least one cell group includes three cell groups. For example, it is not limited that different identifiers correspond to the same number of cell groups. As another example, it is not limited that the first indicator field indicates only one value each time.

[0130] The second indicator field may be understood to be one or more capability fields included in the DCI and individually corresponding to the second cell groups. For example, the second indicator field may be an indicator field or an indicator field group. Each second cell group may correspond to one or more capability fields. The combination of the first indicator field and the second indicator field may be understood as a combination of the first indicator field and at least one capability field corresponding to the second cell group. For example, the first indicator field is a CIF, and the second indicator field is at least one capability field corresponding to cell group #7 to cell group #9.

[0131] For example, the second indicator field may include at least one of the following: hybrid automatic repeat request (HARQ), redundancy version (RV), modulation and coding scheme (MCS), and frequency domain resource allocation (FDRA). Alternatively, the second indicator field may be another indicator field. This is not limited herein. For example, the second indicator field corresponding to cell group #7 may be the redundancy version, and the second indicator field corresponding to cell group #9 may be HARQ and FDRA. Alternatively, there may be another correspondence. This is not limited herein.

[0132] Example 5: If the second indicator field corresponding to the second cell group satisfies a preset condition, the combination between the first indicator field and the second indicator field is used to determine the first cell group from the second cell group. It can be understood that the cell group in the second cell group corresponding to the second indicator field satisfying the preset condition is the first cell group. For example, a subset of cell group #7 in Table 4 is the first cell group in cell group #7. For example, the first cell group is a cell group included in the second cell group and scheduled by the downlink control information format. Alternatively, it can be understood that the cell group in the second cell group corresponding to the second indicator field satisfying the preset condition is a cell other than the first cell group in the second cell group. In other words, the cell group corresponding to the second indicator field not satisfying the preset condition is the first cell group. For example, in Table 4, the first cell group in cell group #7 is a cell other than the subset of cell group #7 in Table 4. For example, the first cell group is a cell group that is included in the second cell group and is not scheduled by the downlink control information format.

[0133] For example, the second indicator field satisfying the predetermined condition may be understood as the second indicator field being set to a protocol preset value. The second indicator field may be understood to include indicator subfields corresponding to each cell subgroup in the second cell group. In the second cell group, the cell subgroup corresponding to the indicator subfield set to the protocol preset value is the first cell group.

[0134] The following provides some possible examples of the second indicator field being set to a protocol preset value. Table 5 is used as an example. The number of HARQ processes and the redundancy version are used as examples of the second indicator field. Setting the number of HARQ processes and the redundancy version to all '0's or all '0's for the enabled transport block is used as an example of the second indicator field being set to a protocol preset value. Table 6 is used as an example. The number of HARQ processes, the redundancy version, the modulation and coding scheme, and the frequency domain resource allocation are used as examples of the second indicator field. The number of HARQ processes, the redundancy version, the modulation and coding scheme, and the frequency domain resource allocation are set to the corresponding values in Table 6, and are used as examples of the second indicator field being set to a protocol preset value. Alternatively, setting the second indicator field to a protocol preset value may be expressed as other examples, which is not limited in this application. DCI formats 0_0 / 0_1 / 0_2 are used as examples. All frequency domain assignments are set to "0" for FDRA Type 2 with μ=1, otherwise all frequency domain assignments are set to "1". DCI format 0_0 / 0_1 / 0_2 is used as an example. For FDRA Type 1 or for dynamic Switch, all frequency domain assignments are set to "0". Alternatively, for FDRA Type 1, all frequency domain assignments are set to "1". [Table 5] [Table 6]

[0135] In the above solution, different radio network temporary identifiers correspond to different cell groups, and each radio network temporary identifier corresponds to at least one cell group. Multiple cells can be scheduled using one downlink control information format by using a first indicator field and the radio network temporary identifier in the downlink control information format. This reduces the overhead of the downlink control information format. Furthermore, if the radio network identifier is the first identifier, the first cell group is determined based on the first indicator field. Alternatively, if the radio network identifier is the second identifier, the first cell group is determined based on a combination of the first indicator field and the second indicator field. In one aspect, the same downlink control information format supports different types of scheduling for multiple cells. In another aspect, if the radio network temporary identifiers are different, the first indicator field in the downlink control information format can indicate different cells by using the same value, further reducing the overhead of the downlink control information format. Furthermore, if the second indicator field is a special value preset by a protocol, the number of bits of the first indication information can be reduced, thereby reducing the number of bits of the downlink control information format.

[0136] Optionally, in a possible implementation of implementation 2, the first cell group determined based on the combination of the first indicator field and the second indicator field is a cell group that includes all cells in the second cell group, or alternatively, the first cell group determined based on the combination of the first indicator field and the second indicator field includes zero cells.

[0137] For example, if the first cell group is a cell group scheduled by the downlink control information format and the number of cells included in the first cell group determined based on the combination of the first indicator field and the second indicator field is zero, that is, if there is no cell group scheduled by the downlink control information format, the terminal device may determine that the downlink control information format is invalid.

[0138] 3 is a diagram of a cell scheduling method 100′ according to the present application. Compared with Implementation 2 of Method 100, when the wireless network identifier is the second identifier of Method 100, the third cell group can be determined based on the second identifier and the second indicator field without considering the information indicated by the first indicator field. For example, Method 100′ can be implemented independently or in combination with the case where the wireless network identifier in Implementation 2 of Method 100 is the first identifier of Method 100. This is not limited in the present application. Method 100′ can include the following steps:

[0139] For details of S101', please refer to the relevant description of S101.

[0140] Optionally, refer to the description of step 1 in implementation 2 of method 100. The difference is that the first cell group is replaced with a third cell group.

[0141] S102′: The terminal device determines a third cell group scheduled by the downlink control information format based on the radio network temporary identifier used to scramble the downlink control information format and a second indicator field in the downlink control information format.

[0142] The wireless network temporary identifier used to scramble the downlink control information format is the second identifier of the method 100. For details, please refer to the related description of the second identifier of the method 100.

[0143] In solution 100′, the terminal device does not determine the third cell group based on the first indicator field of method 100. It can be understood that if the first indicator field indicates at least one cell group, the third cell group does not belong to the at least one cell group.

[0144] If the wireless network temporary identifier is the first identifier in method 100, please refer to the corresponding description in implementation 2 of method 100. The difference is that the first cell group in method 100 needs to be replaced by a third cell group in method 100′.

[0145] If the radio network temporary identifier is the second identifier, the terminal device determines a cell group corresponding to the second indicator field satisfying the preset condition as a third cell group. For example, the terminal device determines a cell group corresponding to the second indicator field satisfying the preset condition as a third cell group among the cell groups indicated by the higher layer signaling. For information about the second indicator field satisfying the preset condition, please refer to the description corresponding to method 100.

[0146] In the above solution, different radio network temporary identifiers correspond to different cell groups, and each radio network temporary identifier corresponds to at least one cell group. Multiple cells can be scheduled using one downlink control information format by using a first indicator field and the radio network temporary identifier in the downlink control information format. This reduces the overhead of the downlink control information format. Also, if the radio network identifier is the first identifier, the first cell group is determined based on the first indicator field, or if the radio network identifier is the second identifier, the first cell group is determined based on the second indicator field, so that the same downlink control information format can support different types of scheduling for multiple cells.

[0147] 4 is a diagram of a cell scheduling method 200 according to the present application. When the radio network temporary identifier includes a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier, only single-cell scheduling may be performed according to the first downlink control information format used to schedule multiple cells. Method 200 may include the following steps:

[0148] S201: The network device determines that a radio network temporary identifier used to scramble the first downlink control information format includes one of a next configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier.

[0149] The first downlink control information format is used for scheduling multiple cells.

[0150] S202: The network device determines that a first indicator field in a first downlink control information format can indicate only one cell.

[0151] For example, S202 is performed after S201. When the network device determines that the radio network temporary identifier used to scramble the first downlink control information format includes one of the following, the network device determines that the first indicator field in the downlink control information format can indicate only one cell.

[0152] S203: The network device sends a first downlink control information format to the terminal device, and the terminal device receives the first downlink control information format from the network device in response.

[0153] S204: If the first indicator field in the first downlink control information format indicates at least two cells, the terminal device determines that the first downlink control information format is invalid based on the radio network temporary identifier and the first indicator field.

[0154] Alternatively, when the first indicator field in the first downlink control information format indicates more than one cell, the terminal device determines that the first downlink control information format is invalid based on the radio network temporary identifier and the first indicator field, and discards the first downlink control information format. In other words, in method 200, when the radio network temporary identifier includes one of the following: a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier, the first indicator field can indicate only one cell. For example, the first indicator field is a CIF, and the CIF can only indicate the ID of a single cell and cannot indicate the IDs of multiple cells.

[0155] Optionally, when the radio network temporary identifier does not include a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier, for example, when the radio network temporary identifier includes an MCS-C-RNTI or a C-RNTI, the first indicator field in the first downlink control information format may indicate at least two cells, and the terminal device may determine the at least two cells based on the radio network temporary identifier and the first indicator field. For a specific implementation, refer to when the radio network temporary identifier is the first identifier in method 100.

[0156] In the above solution, when a first downlink control information format is used to schedule multiple cells and is scrambled by using a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier, the first downlink control information format does not support scheduling of more than one cell, i.e., only one cell can be scheduled. When the first downlink control information format used to schedule multiple cells is scrambled by using another radio network temporary identifier, the first downlink control information format supports scheduling of multiple cells. Different types of scheduling for multiple cells are supported by one downlink control information format by using a first indicator field and a radio network temporary identifier in the first downlink control information format. This reduces the overhead of the downlink control information format.

[0157] 5 is a diagram of a cell scheduling method 300 according to the present application. An indicator field indicating a radio network temporary identifier is newly added to the downlink control information format, and the radio network temporary identifier indicated by the indicator field may be different from the radio network temporary identifier used to scramble the downlink control information format. The downlink control information format may perform different scheduling individually based on the different radio network temporary identifiers for multiple cells. The method 300 may include the following steps:

[0158] S301: A network device scrambles a downlink control information format based on a first wireless network temporary identifier.

[0159] The downlink control information format is used to schedule a plurality of cells (e.g., N cells, where N≧2 and N is an integer), and the first radio network temporary identifier corresponds to a portion of the cells among the plurality of cells.

[0160] The downlink control information format being used to schedule a cell may be understood as the downlink control information format dynamically scheduling data transmissions, for example, physical uplink data transmissions or physical downlink data transmissions, of the cell, or the downlink control information format for physical uplink / downlink data channels enabling / disabling one or more semi-persistent scheduled physical uplink / downlink data channel transmissions in the cell, or the downlink control information format enabling / disabling one or more configured grant physical uplink / downlink data channel transmissions in the cell, or the downlink control information format enabling / disabling one or more semi-persistent CSI transmissions in the cell, or the downlink control information format scheduling retransmissions of configured grant physical uplink / downlink data channels in the cell.

[0161] It should be noted that when a downlink control information format is used to schedule multiple cells, one downlink control information format may be used to perform different types of scheduling for the multiple cells. For example, two cells are scheduled by a downlink control information format, and the downlink control information format may dynamically schedule data transmission for one cell and enable semi-persistent scheduling PDSCH transmission for another cell.

[0162] S302: The network device sends a downlink control information format to the terminal device, and the terminal device receives the downlink control information format from the network device accordingly.

[0163] S303: The terminal device determines, among a plurality of cells, a portion of cells corresponding to a first wireless network temporary identifier.

[0164] It should be understood that when the downlink control information format is used to schedule a plurality of cells, the terminal device needs to determine, based on the first radio network temporary identifier, how the downlink control information format schedules a portion of the cells corresponding to the first radio network temporary identifier. Optionally, the terminal device does not determine, based on the first radio network temporary identifier, how the downlink control information format schedules other cells among the plurality of cells other than the portion of the cells corresponding to the first radio network temporary identifier. In other words, the first radio network temporary identifier is valid for a portion of the cells among the plurality of cells and invalid for cells other than the portion of the cells among the plurality of cells.

[0165] For example, the first radio network temporary identifier indicates at least one of the following: dynamic scheduling of the physical downlink data channel, dynamic scheduling of the physical uplink data channel, enabling or disabling of the semi-persistent scheduling physical downlink data channel, enabling or disabling of the semi-persistent scheduling physical uplink data channel, retransmission of the semi-persistent scheduling physical downlink data channel, retransmission of the semi-persistent scheduling physical uplink data channel, enabling or disabling of the configured grant physical uplink data channel transmission, enabling or disabling of the configured grant physical downlink data channel transmission, retransmission of the configured grant physical uplink data channel transmission, retransmission of the configured grant physical downlink data channel transmission, or enabling or disabling of the semi-persistent channel state information. The terminal device may determine, based on the first radio network temporary identifier, that the downlink control information format is used to schedule at least one of the above items corresponding to a part of the cell corresponding to the first radio network temporary identifier. The following provides some possible examples. For example, the plurality of cells are N cells, and a part of the cell corresponding to the first radio network temporary identifier is M cells out of the N cells, where N≥2, N is an integer, 0≤M≤N, M is an integer, or N≥2, N is an integer, 0<M≤N, M is an integer, or N≥2, N is an integer, 0≤M<N, M is an integer, or N≥2, N is an integer, 0<M<N, M is an integer, or N≥2, N is an integer, M = 1, or N≥2, N is an integer, M = N - 1.

[0166] Example 1-1: The terminal device determines the MCS table used for the data transmitted in any one of the M cells based on the first radio network temporary identifier. For example, the first radio network temporary identifier is a C-RNTI or an MCS-C-RNTI. Note that the C-RNTI and the MCS-C-RNTI individually indicate different MCSs.

[0167] Example 1-2: The terminal device determines, based on a first radio network temporary identifier, that a downlink control information format enables / disables one or more semi-persistent scheduling PDSCH or configuration grant PUSCH transmissions in any one of the M cells. For example, the first radio network temporary identifier is a CS-RNTI or a G-CS-RNTI.

[0168] Example 1-3: The terminal device determines that the downlink control information format retransmits the configuration grant PUSCH in any one of the M cells based on a first radio network temporary identifier, for example, the first radio network temporary identifier is CS-RNTI or G-CS-RNTI.

[0169] Example 1-4: The terminal device determines, based on a first radio network temporary identifier, that a downlink control information format enables / disables one or more semi-persistent CSI transmissions in any one of the M cells. For example, the first radio network temporary identifier is an SPS-CSI-RNTI.

[0170] For example, the terminal device not determining, based on the first radio network temporary identifier, how the downlink control information format schedules other cells among the plurality of cells other than the portion of cells corresponding to the first radio network temporary identifier, may be expressed as the terminal device not scheduling NM cells based on the first radio network temporary identifier.

[0171] The portion of the cell corresponding to the first wireless network temporary identifier may be determined in a number of ways.

[0172] Method 1: When M=1

[0173] Example 2-1: M cells are cells in which DCI used for scheduling multiple cells is located. In other words, PDCCH carrying DCI used for scheduling multiple cells is transmitted in M cells. After determining the M cells, the network device selects to transmit PDCCH in the M cells and determines a first wireless network temporary identifier based on the scheduling requirements of the M cells. The terminal device determines the cell in which the PDCCH is received as the M cell.

[0174] Example 2-2: The cells with the largest or smallest cell sequence numbers (cell IDs) among the N cells are the M cells. For example, the base station determines the M cells whose cell IDs are set as the largest values among the cell IDs of the N cells, and determines first radio network temporary identifiers based on the scheduling requirements of the M cells. The terminal device determines the cell with the largest sequence number among the N cells as the M cells.

[0175] Example 2-3: M cells are one cell indicated by higher layer signaling. The network device indicates one cell by using higher layer signaling, and the terminal device determines the cell as M cells.

[0176] Example 2-4: If the N cells include a cell in which a DCI used to schedule multiple cells is located, see Example 2-1; otherwise, see Example 2-2.

[0177] Example 2-5: If the N cells include a cell in which a DCI used to schedule multiple cells is located, see Example 2-1; otherwise, see Example 2-3.

[0178] Method 2: When M≧1

[0179] Example 3-1: M cells are indicated by higher layer signaling. The network device indicates M cells by using higher layer signaling, and the terminal device determines the M cells based on the higher layer signaling.

[0180] Example 3-2: Higher layer signaling indicates K cells, where K≧M and K is an integer. The M cells are cells that are included in both the K cells and the N cells.

[0181] Example 3-3: M cells are the M cells with the highest or lowest cell sequence numbers among N cells. For example, the M cells with the highest cell sequence numbers among N cells can be understood as the first M cells among N cells sorted in descending order of cell sequence numbers (or cell identifiers). Similarly, the M cells with the lowest cell sequence numbers among N cells can be understood as the first M cells among N cells sorted in ascending order of cell sequence numbers (or cell identifiers).

[0182] Method 3: When M=0

[0183] Example 4: Upper layer signaling indicates K cells, where K≧M and K is an integer. The K cells and the N cells do not overlap. For example, a network device indicates to a terminal device that cell #b is available by using upper layer signaling. The first indicator field indicates cell #c, cell #d, and cell #e, that is, N=3. The terminal device needs to determine, based on the cells indicated by the upper layer signaling, a portion of cells corresponding to the first wireless network temporary identifier that are included in the cells indicated by the first indicator field. However, the cells indicated by the upper layer signaling do not overlap with the cells indicated by the first indicator field. In this case, the number of portions of cells corresponding to the first wireless network temporary identifier determined by the terminal device is 0, that is, M=0.

[0184] Also, if M≠0, see Example 3-2 for the case where the cell indicated by higher layer signaling overlaps with the cell indicated by the first indicator field.

[0185] Optionally, in the method 300, the downlink control information format includes a third indicator field indicating the second wireless network temporary identifier. S301 further includes the network device determining that the second wireless network temporary identifier corresponds to a portion of a cell among the plurality of cells. S303 further includes the terminal device determining, among the plurality of cells, a portion of a cell that corresponds to the second wireless network temporary identifier.

[0186] Note that there may be one or more second wireless network temporary identifiers here. For example, if the second wireless network temporary identifier includes a number of wireless network temporary identifiers (a≧2 and is an integer), the a number of wireless network temporary identifiers may be different from each other. The downlink control information format includes third indicator fields, each of which indicates one second wireless network temporary identifier. The third indicator fields may correspond to NM scheduling cells in forward or reverse order of cell IDs.

[0187] Example 5: Corresponding to Example 2, when the portion of cells corresponding to the first wireless network temporary identifier is different from the portion of cells corresponding to the second wireless network temporary identifier, the portion of cells corresponding to the second wireless network temporary identifier is NM cells. For example, the third indicator field indicates the second wireless network temporary identifier corresponding to the NM cells at cell granularity, or the third indicator field indicates the second wireless network temporary identifier of each cell group among the NM cells at cell group granularity.

[0188] Example 6: In S303, the terminal device does not determine, based on the first radio network temporary identifier, how the downlink control information format schedules cells other than the part of the cells corresponding to the first radio network temporary identifier among the multiple cells. This can be expressed as the terminal device determining, based on the second radio network temporary identifier, how the downlink control information format schedules the part of the cells corresponding to the second radio network temporary identifier. For details, see the descriptions in Examples 1-1 to 1-4. The difference lies in that the first radio network temporary identifier is replaced with the second radio network temporary identifier, and the part of the cells corresponding to the first radio network temporary identifier is replaced with the part of the cells corresponding to the second radio network temporary identifier, that is, M cells are replaced with NM cells.

[0189] To facilitate understanding of this solution, the following describes an example of a downlink control information format in the method 300 with reference to FIG.

[0190] FIG. 6 is a diagram of an example of a downlink control information format according to the present application. In FIG. 6, an example where N=2 and M=1 is used for explanation. Specifically, the DCI is scrambled by using RNTI#1, and the DCI includes a third indicator field indicating RNTI#2. The DCI schedules PUSCH#1 of cell#1 and PUSCH#2 of cell#2. The cell in which the DCI used to schedule the two cells is located is cell#1. PUSCH#1 corresponds to RNTI#1, and PUSCH#2 corresponds to RNTI#2. For example, RNTI#1 is C-RNTI, and RNTI#2 is MCS-C-RNTI. The terminal device performs data transmission in cell#1 based on the MCS indicated by C-RNTI, and the terminal device performs data transmission in cell#2 based on the MCS indicated by MCS-C-RNTI.

[0191] Alternatively, in method 300, the third indicator field in the downlink control information format does not indicate the second radio network temporary identifier. The third indicator field indicates at least one of the following, corresponding to the NM cells: dynamic scheduling of the physical downlink data channel, dynamic scheduling of the physical uplink data channel, enabling or disabling the semi-persistent scheduling physical downlink data channel, enabling or disabling the semi-persistent scheduling physical uplink data channel, retransmission of the semi-persistent scheduling physical downlink data channel, retransmission of the semi-persistent scheduling physical uplink data channel, enabling or disabling of a configuration grant physical uplink data channel transmission, enabling or disabling of a configuration grant physical downlink data channel transmission, retransmission of a configuration grant physical uplink data channel transmission, retransmission of a configuration grant physical downlink data channel transmission, or enabling or disabling of semi-persistent channel state information.

[0192] In the above solution, an indicator field indicating a radio network temporary identifier is newly added to the downlink control information format, and the radio network temporary identifier indicated by the indicator field is different from the radio network temporary identifier used to scramble the downlink control information format. The downlink control information format can perform different scheduling for multiple cells based on the different radio network temporary identifiers. This realizes that one downlink control information format can schedule multiple cells and reduces the overhead of the downlink control information format.

[0193] Method 300 is applicable to multiple radio network temporary identifiers as described in Examples 1-1 to 1-4. Because it is unlikely that a downlink control information format will schedule multiple cells for enabling / disabling or retransmission, a solution is proposed in method 400 to avoid that a radio network temporary identifier used for dynamic scheduling and a radio network temporary identifier not used for dynamic scheduling use the same downlink control information format.

[0194] 7 is a diagram of a cell scheduling method 400 according to the present application. Radio network temporary identifiers such as C-RNTI, G-CS-RNTI, or SPS-CSI-RNTI are not used for dynamic scheduling of cells and may only be used for downlink control information formats for scheduling single-cell data transmissions. The method 400 may include the following steps:

[0195] S401: A network device sends configuration information of a downlink control information format to a terminal device, and correspondingly, the terminal device receives configuration information of a downlink control information format from the network device.

[0196] The downlink control information format is used for scheduling multiple cells.

[0197] S402: The network device transmits a downlink control information format scrambled by using the wireless network temporary identifier to the terminal device, and correspondingly, the terminal device receives the downlink control information format from the network device by using the wireless network temporary identifier.

[0198] In the method 400, for downlink control information formats that can be used for simultaneously scheduling multiple cells, the terminal device does not use the C-RNTI, the G-CS-RNTI, or the SP-CSI-RNTI to receive the PDCCH. In other words, the terminal device does not expect the network device to scramble the DCI format by using the C-RNTI, the G-CS-RNTI, or the SP-CSI-RNTI.

[0199] Alternatively, the network device configures downlink SPS / uplink CG / SP-CSI and configures a DCI format that can be used to simultaneously schedule multiple cells. In the following cases, the network device and the terminal device cannot perform data transmission by using a DCI format that can be used to schedule multiple cells, but perform data transmission by using a DCI format that can be used to schedule only a single cell. Such cases include, but are not limited to, when the DCI format is used to schedule semi-persistent scheduling physical downlink data channel enabling or disabling, semi-persistent scheduling physical uplink data channel enabling or disabling, semi-persistent scheduling physical downlink data channel retransmission, semi-persistent scheduling physical uplink data channel retransmission, configuration grant physical uplink data channel transmission enabling or disabling, configuration grant physical downlink data channel transmission enabling or disabling, configuration grant physical uplink data channel transmission retransmission, configuration grant physical downlink data channel transmission retransmission, or semi-persistent channel state information enabling or disabling.

[0200] For optional radio network temporary identifiers (eg, C-RNTI and MCS-C-RNTI) used for dynamic scheduling, see the relevant description of method 300.

[0201] In the above solution, the downlink control information format used for scheduling multiple cells is not configured for the radio network temporary identifier of the non-dynamically scheduled cell, so that the overhead of the downlink control information can be reduced when dynamic scheduling is performed for multiple cells by using the downlink control information.

[0202] 8 is a diagram of a cell scheduling method 500 according to the present application. The method 500 may include the following steps:

[0203] S501: A network device sends a downlink control information format to a terminal device, and the terminal device receives a downlink control information format from the network device in response.

[0204] The downlink control information format includes a first indicator field and a fourth indicator field, where the first indicator field indicates a plurality of cells.

[0205] Optionally, before S501, the method 500 further includes: determining, by the network device, to indicate the fourth cell group by using a combination of a first indicator field and a fourth indicator field included in the downlink control information format, where the first indicator field indicates a plurality of cells, the plurality of cells includes the fourth cell group, and further, the plurality of cells is the fourth cell group.

[0206] S502: The terminal device determines a fourth cell group among the multiple cells based on a combination of the first indicator field and the fourth indicator field.

[0207] Example 1: The fourth indicator field is one or more capability fields included in the DCI and corresponding to each of a plurality of cells, and the fourth indicator field may be an indicator field or an indicator field group. The combination of the first indicator field and the fourth indicator field may be understood as the combination of the first indicator field and at least one capability field corresponding to each of at least one cell.

[0208] For example, the fourth indicator field may include at least one of the following: HARQ, RV, MCS, and FDRA. Alternatively, the fourth indicator field may be another indicator field, which is not limited in this application.

[0209] Example 2: A fourth indicator field corresponding to a fourth cell group among the plurality of cells satisfies a preset condition, and the fourth cell group includes one or more cells. In this case, the combination of the first indicator field and the fourth indicator field is used to schedule the fourth cell group, and other cells other than the fourth cell group among the plurality of cells are not scheduled; or the combination of the first indicator field and the fourth indicator field is used to schedule other cells other than the fourth cell group among the plurality of cells, and the fourth cell group is not scheduled.

[0210] The fourth indicator field satisfying the preset condition may be understood as the fourth indicator field being set to a protocol preset value. The fourth indicator field may be understood to include indicator subfields corresponding to each of a plurality of cells. Among the plurality of cells, a cell corresponding to the indicator subfield set to the protocol preset value is a cell corresponding to the fourth indicator field satisfying the preset condition.

[0211] The following provides some possible examples in which the fourth indicator field is set to a protocol preset value. For details, please refer to the corresponding descriptions of some possible examples in which the second indicator field is set to a protocol preset value in method 100. The difference is that the second indicator field in method 100 is replaced with the fourth indicator field, and the wireless network temporary identifier does not need to be taken into account in method 500.

[0212] For example, the first indicator field may be CIF.

[0213] In the above solution, the fourth cell group is determined based on the combination of the first indicator field and the fourth indicator field. If the second indicator field is a special field preset by a protocol, the number of bits of the first indication information can be reduced, so that the number of bits of the downlink control information format is reduced and the overhead is reduced.

[0214] Optionally, before S501, the method 500 further includes the network device determining to indicate the fourth cell group by using a combination of a first indicator field and a fourth indicator field included in the downlink control information format, where the first indicator field indicates a plurality of cells, and the plurality of cells includes the fourth cell group.

[0215] Corresponding to the methods provided in the above method embodiments, the embodiments of the present application further provide corresponding apparatuses. The apparatuses include corresponding modules configured to execute the above method embodiments. The modules may be software, hardware, or a combination of software and hardware. It can be understood that the technical features described in the above method embodiments are also applicable to the following apparatus embodiments. Therefore, for content not described in detail, please refer to the above method embodiments. For the sake of brevity, the details will not be described again here.

[0216] 9 is a diagram of a cell scheduling apparatus 600 to which the present application applies. The apparatus 600 includes a transceiver unit 610, which may be configured to implement corresponding communication functions. The transceiver unit 610 may also be referred to as a communication interface or a communication unit.

[0217] Optionally, the apparatus 600 may further include a processing unit 620, which may be configured to perform data processing.

[0218] Optionally, the apparatus 600 further includes a storage unit. The storage unit may be configured to store instructions and / or data. The processing unit 620 may read the instructions and / or data in the storage unit, thereby causing the apparatus to perform the operations performed by a communication device (e.g., a terminal device or a network device) in the above method embodiments.

[0219] The apparatus 600 may be configured to perform the operations performed by a communication device (e.g., a terminal device or a network device) in the above method embodiments. In this case, the apparatus 600 may be a component of the communication device (e.g., a terminal device or a network device). The transceiver unit 610 is configured to perform reception-related operations and transmission-related operations at the communication device (e.g., a terminal device or a network device) side in the above method embodiments, and the processing unit 620 is configured to perform processing-related operations at the communication device (e.g., a terminal device or a network device) side in the above method embodiments.

[0220] In design, the apparatus 600 is configured to perform the operations performed by the terminal device in the method embodiments described above.

[0221] Specifically, in a possible implementation, the transceiver unit 610 is configured to receive a downlink control information format from a network device, and the processing unit 620 is configured to determine a first cell group scheduled by the downlink control information format based on a radio network temporary identifier used to scramble the downlink control information format and a first indicator field in the downlink control information format. The radio network temporary identifier belongs to one of at least two radio network temporary identifiers, and the at least two radio network temporary identifiers correspond to at least two cell groups. Each of the at least two radio network temporary identifiers corresponds to at least one cell group. The first indicator field is used to determine the first cell group among the at least two cell groups.

[0222] Optionally, the transceiver unit 610 is further configured to receive higher layer signaling from the network device, the higher layer signaling indicating a correspondence between the at least two wireless network temporary identifiers and the at least one cell group.

[0223] Specifically, in another possible implementation, the transceiver unit 610 is configured to receive a first downlink control information format from a network device, where the downlink control information format is used to schedule a plurality of cells, and where a radio network temporary identifier used to scramble the first downlink control information format includes one of the following: a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier. If a first indicator field in the first downlink control information format indicates at least two cells, the processing unit 620 is configured to determine that the first downlink control information format is invalid based on the first radio network temporary identifier and the first indicator field.

[0224] Specifically, in another possible implementation, the transceiver unit 610 is configured to receive, from the network device, a downlink control information format that is scrambled by using a first radio network temporary identifier, where the downlink control information format is used to schedule a plurality of cells, and the processing unit 620 is configured to determine a portion of cells among the plurality of cells that correspond to the first radio network temporary identifier.

[0225] Optionally, the downlink control information format includes a third indicator field, and the third indicator field includes the second wireless network temporary identifier. The processing unit 620 is further configured to determine a portion of cells among the plurality of cells that correspond to the second wireless network temporary identifier.

[0226] Specifically, in another possible implementation, the transceiver unit 610 is configured to receive configuration information in a downlink control information format from the network device, where the downlink control information format is used to schedule multiple cells. The processing unit 620 is configured to receive the downlink control information format by using a radio network temporary identifier, where the radio network temporary identifier does not include a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier.

[0227] Specifically, in another possible implementation, the transceiver unit 610 is configured to receive a downlink control information format from the network device, the downlink control information format including a first indicator field and a fourth indicator field, the first indicator field indicating a plurality of cells, and the processing unit 620 is configured to determine a fourth cell group among the plurality of cells based on a combination of the first indicator field and the fourth indicator field.

[0228] It should be understood that the specific processes by which the units perform the above corresponding steps have been described in detail in the above method embodiments, and for the sake of brevity, the details will not be described again here.

[0229] In another design, apparatus 600 is configured to perform the operations performed by the network device in the method embodiments described above.

[0230] In a specific possible implementation, the processing unit 620 is configured to scramble a downlink control information format based on a first radio network temporary identifier, the downlink control information format is used for scheduling a plurality of cells, the first radio network temporary identifier corresponds to a portion of the cells among the plurality of cells, and the transceiver unit 610 is configured to transmit the downlink control information format to the terminal device.

[0231] Specifically, in another possible implementation, the processing unit 620 is configured to determine to scramble the downlink control information format by using a radio network temporary identifier corresponding to a first cell group, where the radio network temporary identifier belongs to one of at least two radio network temporary identifiers, the at least two radio network temporary identifiers correspond to at least two cell groups, each of the at least two radio network temporary identifiers corresponds to at least one cell group, and the first cell group belongs to the at least one cell group corresponding to the radio network temporary identifier. The processing unit 620 is further configured to determine to indicate the first cell group among the at least one cell group corresponding to the radio network temporary identifier by using a first indicator field included in the downlink control information format.

[0232] Optionally, the transceiver unit 610 is configured to transmit higher layer signaling to the terminal device, the higher layer signaling indicating a correspondence between the at least two wireless network temporary identifiers and the at least one cell group.

[0233] Optionally, the processing unit is particularly configured to determine to indicate the first cell group among the at least one cell group corresponding to the wireless network temporary identifier by using a combination of the first indicator field and the second indicator field.

[0234] Specifically, in another possible implementation, the processing unit 620 is configured to determine that a radio network temporary identifier used to scramble the first downlink control information format includes one of the following: a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier, and the first downlink control information format is used to schedule multiple cells. The processing unit 620 is further configured to determine that a first indicator field in the first downlink control information format can indicate only one cell. The transceiver unit 610 is configured to transmit the first downlink control information format to the terminal device.

[0235] Specifically, in another possible implementation, the transceiver unit 610 is configured to transmit, to the terminal device, configuration information in a downlink control information format, where the downlink control information format is used for scheduling multiple cells. The transceiver unit 610 is further configured to transmit, to the terminal device, the downlink control information format that is scrambled by using a radio network temporary identifier, where the radio network temporary identifier does not include a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier.

[0236] Specifically, in another possible implementation, the processing unit 620 is configured to determine to indicate the fourth cell group by using a combination of a first indicator field and a fourth indicator field included in the downlink control information format, where the first indicator field indicates a plurality of cells, and the plurality of cells includes the fourth cell group. The transceiver unit 610 is configured to transmit the downlink control information format to the terminal device.

[0237] It should be understood that the specific processes by which the units perform the above corresponding steps have been described in detail in the above method embodiments, and for the sake of brevity, the details will not be described again here.

[0238] Furthermore, it should be understood that the apparatus 600 herein is presented in the form of a functional unit. The term "unit" herein may refer to an application-specific integrated circuit (ASIC), an electronic circuit, a processor (e.g., a shared processor, a dedicated processor, or a group processor) configured to execute one or more software or firmware programs, a memory, an integrated logic circuit, and / or other suitable components supporting the described functionality. In any example, those skilled in the art will understand that the apparatus 600 may specifically be a terminal device in the above embodiments and configured to perform procedures and / or steps corresponding to the terminal device in the above method embodiments, or that the apparatus may specifically be a network device in the above embodiments and configured to perform procedures and / or steps corresponding to the network device in the above method embodiments. To avoid repetition, details will not be described again here.

[0239] The apparatus 600 in each of the above solutions has a function for implementing corresponding steps performed by a terminal device in the above method, or the apparatus 600 in each of the above solutions has a function for implementing corresponding steps performed by a network device in the above method. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions. For example, to separately perform transmission and reception operations and related processing operations in the method embodiments, a transceiver unit may be replaced with a transceiver (e.g., a transmitting unit in the transceiver unit may be replaced with a transmitter, and a receiving unit in the transceiver unit may be replaced with a receiver), and other units, such as a processing unit, may be replaced with a processor.

[0240] Also, the transceiver unit 610 may alternatively be a transceiver circuit (eg, may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit.

[0241] 9 may be a network element or device in the above embodiments, or may be a chip or a chip system, such as a system-on-a-chip (SoC). The transceiver unit may be an input / output circuit and / or a communication interface. The processing unit may be an integrated processor, a microprocessor, or an integrated circuit on a chip. This is not limited here.

[0242] 10 is a diagram of another cell scheduling apparatus 700 to which the present application applies. The apparatus 700 includes a processor 710. The processor 710 is coupled to a memory 720, which is configured to store computer programs or instructions and / or data, and the processor 710 is configured to execute the computer programs or instructions stored in the memory 720 or read the data stored in the memory 720 to perform the method in the above embodiment.

[0243] Optionally, there are one or more processors 710 .

[0244] Optionally, one or more memories 720 are present.

[0245] Optionally, memory 720 and processor 710 are integrated together or located separately.

[0246] Optionally, as shown in Figure 10, the apparatus 700 may further include a transceiver 730. The transceiver 730 is configured to receive and / or transmit signals. For example, the processor 710 is configured to control the transceiver 730 to receive and / or transmit signals.

[0247] In the solution, the apparatus 700 is configured to implement the operations performed by the terminal device in the above method embodiments.

[0248] For example, the processor 710 is configured to execute computer programs or instructions stored in the memory 720 to perform the relevant operations of the terminal device in the method embodiments described above, such as the method performed by the terminal device or UE in the embodiments shown in any of Figures 2 to 8.

[0249] In the solution, the apparatus 700 is configured to implement the operations performed by the network device in the above method embodiments.

[0250] For example, the processor 710 is configured to execute computer programs or instructions stored in the memory 720 to perform the relevant operations of the network device in the method embodiments described above, such as the method performed by the network device or base station in the embodiments shown in any of Figures 2-8.

[0251] It should be understood that the processor described in the embodiments of this application may be a central processing unit (CPU), or may further be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor, etc.

[0252] It should be further understood that the memory described in the embodiments of the present application may be volatile and / or non-volatile memory. Non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory may be random access memory (RAM). For example, RAM may be used as an external cache. By way of example, and not limitation, RAM includes multiple forms such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchlink dynamic random access memory (synchlink DRAM, SLDRAM), and direct rambus random access memory (direct rambus RAM, DR RAM).

[0253] It should be noted that if the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, the memory (storage module) may be incorporated into the processor.

[0254] Additionally, memory as described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

[0255] 11 is a diagram of a chip system 800 to which the present application is applied. The chip system 800 (which may also be called a processing system) includes a logic circuit 810 and an input / output interface 820.

[0256] The logic circuit 810 may be a processing circuit in the chip system 800. The logic circuit 810 may be coupled to a storage unit and call instructions in the storage unit so that the system 800 can implement the methods and functions in the embodiments of the present application. The input / output interface 820 may be an input / output circuit in the chip system 800, which outputs information processed by the chip system 800 or inputs data or signaling information to be processed to the chip system 800 for processing.

[0257] Specifically, for example, when the chip system 800 is installed in a terminal device, the logic circuit 810 is coupled to the input / output interface 820, and the logic circuit 810 may send a message to a network device through the input / output interface 820. The message may be generated by the logic circuit 810. Alternatively, the input / output interface 820 may input a message from the network device to the logic circuit 810 for processing. As another example, when the chip system 800 is installed in a network device, the logic circuit 810 is coupled to the input / output interface 820, and the logic circuit 810 may send a message to a terminal device through the input / output interface 820. The message may be generated by the logic circuit 810. Alternatively, the input / output interface 820 may input a message from the terminal device to the logic circuit 810 for processing.

[0258] In the solution, the chip system 800 is configured to perform the operations performed by the terminal device in the above method embodiments.

[0259] For example, the logic circuitry 810 is configured to perform the processing-related operations performed by the terminal device in the method embodiments described above, such as the processing-related operations performed by the terminal device or UE in the embodiments shown in any of Figures 2 to 8. The input / output interface 820 is configured to perform the transmission and / or reception-related operations performed by the terminal device in the method embodiments described above, such as the transmission and / or reception-related operations performed by the terminal device or UE in the embodiments shown in any of Figures 2 to 8.

[0260] In another solution, the chip system 800 is configured to perform the operations performed by the network device in the method embodiments described above.

[0261] For example, logic circuitry 810 is configured to perform the processing-related operations performed by the network device in the method embodiments described above, such as the processing-related operations performed by the network device or base station in the embodiments shown in any of Figures 2 through 8. Input / output interface 820 is configured to perform the transmission and / or reception-related operations performed by the network device in the method embodiments described above, such as the transmission and / or reception-related operations performed by the network device or base station in the embodiments shown in any of Figures 2 through 8.

[0262] An embodiment of the present application further provides a computer-readable storage medium, which stores computer instructions used to implement the method performed by the terminal device or network device in the above method embodiment.

[0263] For example, when the computer program is executed by a computer, the computer can implement the methods performed by the terminal device or network device in the above method embodiments.

[0264] An embodiment of the present application provides a computer program product including instructions, which, when executed by a computer, perform the methods performed by the terminal device or network device in the above method embodiments.

[0265] An embodiment of the present application further provides a communication system, which includes the terminal device and the network device in the above-described embodiments. For example, the system includes the terminal device and the network device in the embodiments shown in any of Figures 2 to 9.

[0266] For the relevant content description and advantageous effects of any one of the above-given devices, please refer to the corresponding method given above, and the details will not be described again here.

[0267] It should be understood that the disclosed systems, devices, and methods in some embodiments provided herein may be implemented in other ways. For example, the device embodiments described are merely examples. For example, the division into units is merely a logical division of function, and other divisions may be used in actual implementation. For example, multiple units or components may be combined or integrated into other systems, or some functions may be omitted or not performed. Furthermore, the mutual couplings or direct couplings or communication connections shown or discussed may be implemented through some interface. Indirect couplings or communication connections between devices or units may be implemented in electrical, mechanical, or other forms.

[0268] All or part of the above embodiments may be implemented by software, hardware, firmware, or any combination thereof. When software is used to implement the embodiments, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program product is loaded into a computer and executed, all or part of the procedures or functions of the embodiments of the present application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. For example, the computer may be a personal computer, a server, or a network device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, or digital subscriber line (DSL)) or wireless (e.g., infrared, radio wave, or microwave) transmission. The computer-readable storage medium may be any available medium accessible by a computer, or a data storage device, such as a server or data center, integrated with one or more available media. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, or a magnetic tape), an optical medium (e.g., a DVD), a semiconductor medium (e.g., a solid-state disk (SSD)), etc. For example, the available medium may include, but is not limited to, any medium capable of storing program code, such as a USB flash drive, a removable hard disk drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0269] The above description is merely a specific implementation of the present application and is not intended to limit the scope of protection of the present application. Any modifications or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present application should fall within the scope of protection of the present application. Therefore, the scope of protection of the present application should be governed by the scope of protection of the claims.

[0270] This application claims priority from Chinese Patent Application No. 202210967187.7, filed with the State Intellectual Property Administration of China on August 12, 2022, which is incorporated herein by reference in its entirety.

Claims

1. A cell scheduling method, comprising: receiving, by the terminal device, a downlink control information format from the network device; determining, by the terminal device, a first cell group scheduled by the downlink control information format based on a radio network temporary identifier used to scramble the downlink control information format and a first indicator field in the downlink control information format, wherein the radio network temporary identifier used to scramble the downlink control information format belongs to one of at least two radio network temporary identifiers, the at least two radio network temporary identifiers correspond to at least two cell groups, each of the at least two radio network temporary identifiers corresponds to at least one cell group, and the first indicator field is used to determine the first cell group among the at least two cell groups; A method having the following.

2. the at least two wireless network temporary identifiers include a first identifier and a second identifier; the first identifier indicates at least one of a next dynamic scheduling of a physical downlink data channel or a next dynamic scheduling of a physical uplink data channel corresponding to the first cell group; the second identifier indicates at least one of the following: a next enabling or disabling of a semi-persistent scheduled physical downlink data channel, a next enabling or disabling of a semi-persistent scheduled physical uplink data channel, a retransmission of a semi-persistent scheduled physical downlink data channel, a retransmission of a semi-persistent scheduled physical uplink data channel, a next enabling or disabling of a configured grant physical uplink data channel transmission, a next enabling or disabling of a configured grant physical downlink data channel transmission, a retransmission of a configured grant physical uplink data channel transmission, a retransmission of a configured grant physical downlink data channel transmission, or a next enabling or disabling of semi-persistent channel state information corresponding to the first cell group; The method of claim 1.

3. the first cell group includes at least one cell when the radio network temporary identifier used to scramble the downlink control information format is the first identifier, or the first cell group is one cell when the radio network temporary identifier used to scramble the downlink control information format is the second identifier; The method of claim 2.

4. the first indicator field comprises K bits, K≧1, and K is an integer; when the radio network temporary identifier used to scramble the downlink control information format is the first identifier, L1 values of the first indicator field correspond respectively to L1 cell groups, each of the L1 cell groups including at least one cell, the L1 cell groups including the first cell group, L1 being an integer; or when the radio network temporary identifier used to scramble the downlink control information format is the second identifier, L2 values of the first indicator field respectively correspond to L2 cell groups, the L2 cell groups including the first cell group, L2 is an integer; If L1 ≥ L2, then 2 Ｋ－１ <L1≦2 Ｋ and 1≦L2≦2 Ｋ or If L1<L2, 1≦L1<2 Ｋ Katsu 2 Ｋ－１ <L2≦2 Ｋ That is, The method of claim 2.

5. each of the L1 cell groups includes the at least one cell when the radio network temporary identifier used to scramble the downlink control information format is the first identifier; or Each of the L2 cell groups is a cell when the radio network temporary identifier used to scramble the downlink control information format is the second identifier. The method of claim 4.

6. The first indicator field is used to determine the first cell group among the at least two cell groups, the first indicator field is used to determine a second cell group among the at least two cell groups, and a correspondence between the second cell group and the first indicator field is indicated by higher layer signaling; the first cell group is the second cell group when the radio network temporary identifier used to scramble the downlink control information format is the first identifier; or and when the radio network temporary identifier used to scramble the downlink control information format is the second identifier, the second cell group includes the first cell group. The method according to claim 2 or 3.

7. The downlink control information format further includes a second indicator field, and if the radio network temporary identifier used to scramble the downlink control information format is the second identifier, The first indicator field is used to determine the first cell group among the at least two cell groups, a combination of the first indicator field and the second indicator field is used to determine the first cell group among the second cell group. The method of claim 6.

8. The method comprises: receiving, by the terminal device, higher layer signaling from the network device; the higher layer signaling indicates a correspondence between the at least two radio network temporary identifiers and the at least one cell group.

8. The method according to any one of claims 1 to 7.

9. A cell scheduling method, comprising: determining, by a network device, to scramble a downlink control information format by using a radio network temporary identifier corresponding to a first cell group, wherein the radio network temporary identifier used to scramble the downlink control information format belongs to one of at least two radio network temporary identifiers, the at least two radio network temporary identifiers correspond to at least two cell groups, each of the at least two radio network temporary identifiers corresponds to at least one cell group, and the first cell group belongs to the at least one cell group corresponding to the radio network temporary identifier used to scramble the downlink control information format; determining, by the network device, to indicate the first cell group among the at least one cell group corresponding to the radio network temporary identifier used to scramble the downlink control information format by using a first indicator field included in the downlink control information format; transmitting the downlink control information format by the network device to a terminal device; A method having the following.

10. The method comprises: transmitting, by the network device, higher layer signaling to the terminal device; the higher layer signaling indicates a correspondence between the at least two radio network temporary identifiers and the at least one cell group.

10. The method of claim 9.

11. the downlink control information format further includes a second indicator field, and determining, by the network device, to indicate the first cell group among the at least one cell group corresponding to the radio network temporary identifier used to scramble the downlink control information format by using the first indicator field included in the downlink control information format includes: determining, by the network device, to indicate the first cell group among the at least one cell group corresponding to the radio network temporary identifier used to scramble the downlink control information format by using a combination of the first indicator field and the second indicator field.

11. The method according to claim 9 or 10.

12. A cell scheduling method, comprising: receiving, by a terminal device, a first downlink control information format from a network device, the first downlink control information format being used for scheduling a plurality of cells; a radio network temporary identifier used to scramble the first downlink control information format comprises one of the following: a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier; determining, by the terminal device, based on the radio network temporary identifier and the first indicator field, that the first downlink control information format is invalid when a first indicator field in the first downlink control information format indicates at least two cells; A method having the following.

13. A cell scheduling method, comprising: determining, by the network device, that a radio network temporary identifier used to scramble a first downlink control information format includes one of the following: a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier, wherein the first downlink control information format is used to schedule multiple cells; and determining, by the network device, that a first indicator field in the first downlink control information format can indicate only one cell; transmitting the first downlink control information format by the network device to a terminal device; A method having the following.

14. A cell scheduling method, comprising: receiving, by a terminal device from a network device, a downlink control information format scrambled by using a first wireless network temporary identifier, the downlink control information format being used for scheduling a plurality of cells; determining, by the terminal device, a portion of the cells among the plurality of cells that corresponds to the first radio network temporary identifier; A method having the following.

15. the downlink control information format includes a third indicator field, the third indicator field indicating a second wireless network temporary identifier, and the method further comprises: determining, by the terminal device, a portion of the cells among the plurality of cells that correspond to the second wireless network temporary identifier.

15. The method of claim 14.

16. the plurality of cells includes N cells, and the portion of cells corresponding to the first radio network temporary identifier is M cells among the N cells, N≧2, N is an integer, and 0≦M≦N, M is an integer; The M cells are indicated by higher layer signaling, or The M cells are the M cells with the highest or lowest cell sequence numbers among the N cells, or If M=1, the M cells are cells from which the terminal device receives the downlink control information format, or If M=1 and the cell from which the terminal device receives the downlink control information format does not belong to the N cells, the M cells are indicated by higher layer signaling, or the M cells are cells with the highest or lowest cell sequence numbers among the N cells; the higher layer signaling is received by the terminal device from the network device; 16. The method of claim 15.

17. The part of cells corresponding to the second radio network temporary identifier is N-M cells, the third indicator field indicates, at a cell granularity, the second radio network temporary identifiers corresponding to the N−M cells; or the third indicator field indicating, at a cell group granularity, the second radio network temporary identifier of each cell group among the N-M cells.

17. The method of claim 15 or 16.

18. the downlink control information includes a carrier indicator field, the carrier indicator field indicates a plurality of cells, and the carrier indicator field and the third indicator field are jointly encoded by the network device; 18. The method according to any one of claims 15 to 17.

19. the first radio network temporary identifier indicates one of the following: dynamic scheduling of a physical downlink data channel, dynamic scheduling of a physical uplink data channel, enabling or disabling a semi-persistently scheduled physical downlink data channel, enabling or disabling a semi-persistently scheduled physical uplink data channel, retransmission of a semi-persistently scheduled physical downlink data channel, retransmission of a semi-persistently scheduled physical uplink data channel, enabling or disabling a configured grant physical uplink data channel transmission, enabling or disabling a configured grant physical downlink data channel transmission, retransmission of a configured grant physical uplink data channel transmission, retransmission of a configured grant physical downlink data channel transmission, or enabling or disabling semi-persistent channel state information corresponding to the portion of the cell corresponding to the first radio network temporary identifier; 19. The method of any one of claims 15 to 18.

20. A cell scheduling method, comprising: scrambling, by a network device, a downlink control information format based on a first radio network temporary identifier, the downlink control information format being used to schedule a plurality of cells, and the first radio network temporary identifier corresponding to a portion of cells among the plurality of cells; transmitting the downlink control information format by the network device to a terminal device; A method having the following.

21. a third indicator field in the downlink control information format indicating a second radio network temporary identifier, the second radio network temporary identifier corresponding to a portion of a cell in the plurality of cells; 21. The method of claim 20.

22. the plurality of cells includes N cells, and the portion of cells corresponding to the first radio network temporary identifier is M cells among the N cells, N≧2, N is an integer, and 0≦M≦N, M is an integer; The M cells are the M cells with the highest or lowest cell sequence numbers among the N cells, or If M=1, the M cells are cells from which the terminal device receives the downlink control information format, or The method further comprises transmitting, by the network device, higher layer signaling to the terminal device, the higher layer signaling indicating the M cells.

22. The method of claim 20 or 21.

23. the portion of cells corresponding to the second radio network temporary identifier is N-M cells among the N cells; a third indicator field in the downlink control information format indicating a second wireless network temporary identifier; the third indicator field indicates, at a cell granularity, the second radio network temporary identifiers corresponding to the N−M cells; or the third indicator field indicating, at a cell group granularity, the second radio network temporary identifier of each cell group among the N-M cells.

23. The method of claim 22.

24. the downlink control information includes a carrier indicator field, the carrier indicator field indicating a plurality of cells; 24. The method of any one of claims 20 to 23.

25. the first radio network temporary identifier indicates one of the following: dynamic scheduling of a physical downlink data channel, dynamic scheduling of a physical uplink data channel, enabling or disabling a semi-persistently scheduled physical downlink data channel, enabling or disabling a semi-persistently scheduled physical uplink data channel, retransmission of a semi-persistently scheduled physical downlink data channel, retransmission of a semi-persistently scheduled physical uplink data channel, enabling or disabling a configured grant physical uplink data channel transmission, enabling or disabling a configured grant physical downlink data channel transmission, retransmission of a configured grant physical uplink data channel transmission, retransmission of a configured grant physical downlink data channel transmission, or enabling or disabling semi-persistent channel state information corresponding to the portion of the cell corresponding to the first radio network temporary identifier; 25. The method of any one of claims 20 to 24.

26. A cell scheduling method, comprising: receiving, by a terminal device, configuration information of a downlink control information format from a network device, the downlink control information format being used for scheduling a plurality of cells; receiving, by the terminal device, the downlink control information format by using a radio network temporary identifier, wherein the radio network temporary identifier does not include a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier; A method having the following.

27. A cell scheduling method, comprising: Sending configuration information of a downlink control information format by a network device to a terminal device, the downlink control information format being used for scheduling a plurality of cells; transmitting, by the network device, the downlink control information format to a terminal device, the downlink control information format being scrambled by using a radio network temporary identifier, wherein the radio network temporary identifier does not include a configuration scheduling radio network temporary identifier, a group configuration scheduling radio network temporary identifier, or a semi-persistent channel state information radio network temporary identifier; A method having the following.

28. A cell scheduling method, comprising: receiving, by a terminal device, a downlink control information format from a network device, the downlink control information including a first indicator field and a fourth indicator field, the first indicator field indicating a plurality of cells; determining, by the terminal device, a fourth cell group among the plurality of cells based on a combination of the first indicator field and the fourth indicator field; A method having the following.

29. A cell scheduling method, comprising: determining, by the network device, to indicate a fourth cell group by using a combination of a first indicator field and a fourth indicator field included in a downlink control information format, wherein the first indicator field indicates a plurality of cells, and the plurality of cells includes the fourth cell group; transmitting the downlink control information format by the network device to a terminal device; A method having the following.

30. A module configured to perform the method according to any one of claims 1 to 8, or A module configured to perform the method according to any one of claims 9 to 11, or A module configured to perform the method of claim 12, 13, 26, 27, 28 or 29; or A module configured to perform the method of any one of claims 14 to 19, or A module adapted to carry out the method of any one of claims 20 to 25. A cell scheduling device having:

31. A cell scheduling device, a processor and a memory; the memory is configured to store a computer program; the processor is configured to execute the computer program stored in the memory to enable the communication device to perform the communication method according to any one of claims 1 to 8, or to enable the communication device to perform the communication method according to any one of claims 9 to 11, or to enable the communication device to perform the communication method according to claims 12, 13, 26, 27, 28 or 29, or to enable the communication device to perform the communication method according to any one of claims 14 to 19, or to enable the communication device to perform the communication method according to any one of claims 20 to 25. Cell scheduling device.

32. storing instructions, which when executed by a computer, enable the computer to perform the method of any one of claims 1 to 8, or to perform the method of any one of claims 9 to 11, or to perform the method of claims 12, 13, 26, 27, 28 or 29, or to perform the method of any one of claims 14 to 19, or to perform the method of any one of claims 20 to 25; A computer-readable storage medium.

33. a memory configured to store a computer program; a processor configured to read and execute the computer program stored in the memory; When the computer program is executed, the processor performs the method according to any one of claims 1 to 8, or the processor performs the method according to any one of claims 9 to 11, or the processor performs the method according to claims 12, 13, 26, 27, 28 or 29, or the processor performs the method according to any one of claims 14 to 19, or the processor performs the method according to any one of claims 20 to 25. Tips.

34. comprising computer program code, which when executed on a computer, enables the computer to perform the method according to any one of claims 1 to 8, or enables the computer to perform the method according to any one of claims 9 to 11, or the method according to claims 12, 13, 26, 27, 28 or 29, or the method according to any one of claims 14 to 19, or the method according to any one of claims 20 to 25, Computer program products.

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