Downlink control information size alignment, determination method and apparatus - Patents.com

Abstract

The present disclosure relates to the field of communications technology, and more particularly to a method and apparatus for determining size alignment of downlink control information. The method for performing size alignment of downlink control information includes: receiving first downlink control information for scheduling multiple cells; and determining size alignment of conventional downlink control information in each cell scheduled by the first downlink control information, wherein, in at least one first cell corresponding to the first downlink control information, a sum of the size of the first downlink control information and the size of the aligned conventional downlink control information is equal to or less than a first threshold. This helps ensure that the total number of DCI sizes in the at least one first cell is not excessive, thereby preventing excessive complexity in blind detection of DCI by a terminal. When a network device schedules multiple cells through one MC-DCI, the problem of different sizes of MC-DCI that need to be transmitted in different cells is avoided.

Description

[Technical Field]

[0001] The present disclosure relates to the field of communication technology, and in particular to a method for determining size alignment of downlink control information, a method for performing size alignment of downlink control information, an apparatus for determining size alignment of downlink control information, an apparatus for performing size alignment of downlink control information, a system for performing size alignment of downlink control information, a communication apparatus, and a computer-readable storage medium. [Background technology]

[0002] In the related art, a single downlink control information (DCI) in a scheduling cell is only allowed to schedule data of one cell, such as a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH). However, as frequency resources become increasingly fragmented, the need for simultaneous scheduling of data of multiple cells gradually increases. Summary of the Invention [Problem to be solved by the invention]

[0003] In order to solve the technical problems in the related art, embodiments of the present disclosure provide a method for determining size alignment of downlink control information, a method for performing size alignment of downlink control information, an apparatus for determining size alignment of downlink control information, an apparatus for performing size alignment of downlink control information, a system for performing size alignment of downlink control information, a communication device, and a computer-readable storage medium. [Means for solving the problem]

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided a method for determining size alignment of downlink control information, the method being executed by a terminal, the method including: receiving first downlink control information for scheduling a plurality of cells; and determining size alignment of legacy downlink control information in each cell scheduled by the first downlink control information, wherein in at least one first cell corresponding to the first downlink control information, a sum of the size of the first downlink control information and the size of the aligned legacy downlink control information is less than or equal to a first threshold.

[0005] According to a second aspect of an embodiment of the present disclosure, there is provided a method for determining size alignment of downlink control information, the method being executed by a terminal, the method including: receiving first downlink control information for scheduling a plurality of cells; determining a reference cell from at least one first cell corresponding to the first downlink control information; determining size alignment of conventional downlink control information and the first downlink control information in the reference cell, and determining size alignment of conventional downlink control information in a second cell in the at least one first cell, where the second cell is a cell other than the reference cell in the first cell.

[0006] According to a third aspect of an embodiment of the present disclosure, there is provided a method for performing size alignment of downlink control information, the method being executed by a network device, the method including: performing size alignment of conventional downlink control information in each cell scheduled by first downlink control information for scheduling a plurality of cells, where in at least one first cell corresponding to the first downlink control information, a sum of a size of the first downlink control information and a size of the aligned conventional downlink control information is less than or equal to a first threshold; and transmitting the first downlink control information to a terminal.

[0007] According to a fourth aspect of an embodiment of the present disclosure, there is provided a method for performing size alignment of downlink control information, the method being executed by a network device, the method including: determining a reference cell from at least one first cell corresponding to first downlink control information for scheduling a plurality of cells; performing size alignment of conventional downlink control information and the first downlink control information in the reference cell, and performing size alignment of conventional downlink control information in a second cell in the at least one first cell, where the second cell is a cell other than the reference cell in the first cell; and transmitting the first downlink control information to a terminal.

[0008] According to a fifth aspect of an embodiment of the present disclosure, there is provided an apparatus for determining size alignment of downlink control information, the apparatus including: a receiving module configured to receive first downlink control information for scheduling a plurality of cells; and a processing module configured to determine size alignment of conventional downlink control information in each cell scheduled by the first downlink control information, wherein in at least one first cell corresponding to the first downlink control information, a sum of the size of the first downlink control information and the size of aligned conventional downlink control information is less than or equal to a first threshold.

[0009] According to a sixth aspect of an embodiment of the present disclosure, there is provided an apparatus for determining size alignment of downlink control information, the apparatus including: a receiving module configured to receive first downlink control information for scheduling a plurality of cells; and a processing module configured to determine a reference cell from at least one first cell corresponding to the first downlink control information, determine size alignment of conventional downlink control information and the first downlink control information in the reference cell, and determine size alignment of conventional downlink control information in a second cell in the at least one first cell, where the second cell is a cell other than the reference cell in the first cell.

[0010] According to a seventh aspect of an embodiment of the present disclosure, there is provided an apparatus for performing size alignment of downlink control information, the apparatus including: a processing module configured to perform size alignment of conventional downlink control information in each cell scheduled by first downlink control information for scheduling a plurality of cells, wherein in at least one first cell corresponding to the first downlink control information, a sum of a size of the first downlink control information and a size of the aligned conventional downlink control information is less than or equal to a first threshold; and a transmitting module configured to transmit the first downlink control information to a terminal.

[0011] According to an eighth aspect of an embodiment of the present disclosure, there is provided an apparatus for performing size alignment of downlink control information, the apparatus including: a processing module configured to determine a reference cell from at least one first cell corresponding to first downlink control information for scheduling a plurality of cells; perform size alignment of conventional downlink control information and the first downlink control information in the reference cell; and perform size alignment of conventional downlink control information in a second cell in the at least one first cell, where the second cell is a cell other than the reference cell in the first cell; and a transmitting module configured to transmit the first downlink control information to a terminal.

[0012] According to a ninth aspect of an embodiment of the present disclosure, there is provided a system for performing size alignment of downlink control information, comprising: a terminal; and a network device, wherein the terminal is configured to implement the method for determining size alignment of the downlink control information; and the network device is configured to implement the method for performing size alignment of the downlink control information.

[0013] According to a tenth aspect of an embodiment of the present disclosure, there is provided a communication device, the communication device including: a processor; and a memory for storing a computer program, wherein, when the computer program is executed by the processor, the method for determining size alignment of the downlink control information is realized.

[0014] According to an eleventh aspect of an embodiment of the present disclosure, there is provided a communication device, the communication device including: a processor; and a memory for storing a computer program, wherein, when the computer program is executed by the processor, the method for performing size alignment of the downlink control information is realized.

[0015] According to a twelfth aspect of an embodiment of the present disclosure, there is provided a computer-readable storage medium for storing a computer program, which, when executed by a processor, realizes a method for determining size alignment of the above-mentioned downlink control information.

[0016] According to a thirteenth aspect of an embodiment of the present disclosure, there is provided a computer-readable storage medium for storing a computer program, which, when executed by a processor, realizes the method for performing size alignment of the above-mentioned downlink control information. [Effects of the Invention]

[0017] According to an embodiment of the present disclosure, a terminal can receive MC-DCI for scheduling multiple cells, determine multiple cells to be scheduled by the MC-DCI, and determine size alignment of legacy DCI in each of the multiple cells. For each cell, size alignment is performed only on legacy DCI in the cell, and the MC-DCI does not participate in the alignment, which is advantageous to simplify the alignment inference process by the terminal. Furthermore, the sum of the number of MC-DCI sizes and the number of aligned legacy DCI sizes in the multiple cells is less than or equal to the product of the number of at least one first cell corresponding to the MC-DCI and the first number, which helps ensure that the total number of DCI sizes in the at least one first cell is not excessive, thereby preventing the terminal from performing blind DCI detection with excessive complexity.

[0018] Furthermore, since size alignment is performed only on legacy DCI within each cell and MC-DCI is not involved in the alignment, the size of the MC-DCI does not change for different cells, thereby avoiding the problem that when the network device schedules multiple cells via one MC-DCI, the size of the MC-DCI that needs to be transmitted in different cells is different. [Brief explanation of the drawings]

[0019] In order to more clearly explain the technical solutions in the embodiments of the present disclosure, the following briefly describes the necessary drawings described in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and those skilled in the art can obtain other drawings based on these drawings without any creative efforts. [Figure 1] FIG. 1 is a schematic diagram of an application scenario illustrated in an embodiment of the present disclosure. [Figure 2] 4 is a schematic flowchart of a method for determining size alignment of downlink control information according to an embodiment of the present disclosure; [Figure 3]FIG. 1 is a schematic diagram of another application scenario shown in an embodiment of the present disclosure. [Figure 4] 4 is a schematic flowchart of a method for determining size alignment of downlink control information according to an embodiment of the present disclosure; [Figure 5] FIG. 10 is a schematic diagram of another application scenario shown in an embodiment of the present disclosure. [Figure 6] 1 is a schematic flowchart of a method for performing size alignment of downlink control information according to an embodiment of the present disclosure; [Figure 7] 1 is a schematic flowchart of a method for performing size alignment of downlink control information according to an embodiment of the present disclosure; [Figure 8] FIG. 2 is a schematic diagram of interactions between a terminal and a network device according to an embodiment of the present disclosure. [Figure 9] FIG. 10 is a schematic diagram of interactions between other terminals and network devices according to an embodiment of the present disclosure. [Figure 10] FIG. 2 is a schematic block diagram of an apparatus for determining size alignment of downlink control information according to an embodiment of the present disclosure; [Figure 11] FIG. 2 is a schematic block diagram of an apparatus for determining size alignment of downlink control information according to an embodiment of the present disclosure; [Figure 12] FIG. 2 is a schematic block diagram of an apparatus for performing size alignment of downlink control information according to an embodiment of the present disclosure; [Figure 13] FIG. 2 is a schematic block diagram of an apparatus for performing size alignment of downlink control information according to an embodiment of the present disclosure; [Figure 14] FIG. 2 is a schematic block diagram of an apparatus for size alignment of downlink control information according to an embodiment of the present disclosure; [Figure 15] FIG. 2 is a schematic block diagram of an apparatus for determining size alignment of downlink control information according to an embodiment of the present disclosure; DETAILED DESCRIPTION OF THE INVENTION

[0020] The following will clearly and completely explain the technical solutions in the embodiments of the present disclosure in combination with the drawings of the embodiments of the present disclosure, and it is obvious that the described embodiments are only some embodiments of the present disclosure, not all embodiments, and all other embodiments that can be obtained by those skilled in the art based on the embodiments of the present disclosure without any creative efforts fall within the scope of protection of the present disclosure.

[0021] The terms used in the embodiments of the present disclosure are for the purpose of describing particular embodiments only and are not intended to limit the embodiments of the present disclosure. As used in the embodiments of the present disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. Furthermore, as used herein, "and / or" includes any and all combinations of one or more listed items.

[0022] Although various pieces of information may be described using terms such as first, second, and third in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are used only to distinguish between pieces of information of the same type. For example, first information may be referred to as second information, and similarly, second information may be referred to as first information, without departing from the scope of the embodiments of the present disclosure. Depending on the context, the term "when" as used herein may be understood as "when" or "during" or "in response to a determination."

[0023] For simplicity and ease of understanding, this specification uses the terms "greater than" or "smaller," "higher than" or "lower than" when describing size relationships. Those skilled in the art will understand that "greater than" means "greater than or equal to," "smaller" means "less than or equal to," "higher" means "more than or equal to," and "lower" means "less than or equal to."

[0024] The embodiments of the present disclosure propose downlink control information for scheduling multiple cells, which may be referred to as multi-carrier scheduling downlink control information, e.g., may be written as multi-cell scheduling DCI, and may be abbreviated as MC-DCI. Hereinafter, for ease of representation, the downlink control information for scheduling multiple cells may be represented by MC-DCI.

[0025] The MC-DCI may be used to schedule multiple cells, and specifically refers to scheduling data of multiple cells, such as scheduling PUSCH, PDSCH, etc. of one or more cells among the multiple cells. Scheduling of multiple cells is realized by one DCI.

[0026] In one embodiment, the MC-DCI may include an MC-DCI for scheduling uplink transmissions of multiple cells, e.g., the format may be DCI format 0_X, and the MC-DCI may include an MC-DCI for scheduling downlink transmissions of multiple cells, e.g., the format may be DCI format 1_X, where X may be, e.g., 3.

[0027] FIG. 1 is a schematic diagram of an application scenario illustrated in an embodiment of the present disclosure.

[0028] As shown in FIG. 1, an example is taken in which MC-DCI schedules four cells, and the four cells are Cell#1, Cell#2, Cell#3, and Cell#4, respectively.

[0029] The MC-DCI includes MC-DCI for scheduling uplink transmissions of multiple cells, e.g., DCI 0_3, and further includes MC-DCI for scheduling downlink transmissions of multiple cells, e.g., DCI 1_3, where DCI 0_3 is used to schedule uplink transmissions of Cell#2 and Cell#4, and DCI 1_3 is used to schedule downlink transmissions of Cell#1, Cell#2, and Cell#3.

[0030] This embodiment introduces MC-DCI based on legacy DCI, which may increase the number of DCI sizes, where size refers to the number of bits occupied, and DCI size may be translated as the size of DCI or the magnitude of DCI.

[0031] If the number of DCI sizes is too large, the complexity of blind detection of DCI by the terminal increases. In response to this, the network device can reduce the number of DCI sizes by aligning the DCI sizes that need to be transmitted, so that the number of DCI sizes can meet the DCI size budget.

[0032] The alignment process includes at least one of alignment for legacy DCI, alignment for MC-DCI and legacy DCI, and alignment for MC-DCI for scheduling uplink transmissions of multiple cells and MC-DCI for scheduling downlink transmissions of multiple cells.

[0033] It should be noted that in an embodiment of the present disclosure, after a network device aligns DCI sizes, the number of DCI sizes may satisfy a preset condition, and the preset condition may be a "k+1" condition, that is, in one cell, the number of DCI sizes scrambled by a Cell Radio Network Temporary Identifier (C-RNTI) is k or less, and the number of DCI sizes scrambled by an RNTI other than the C-RNTI is 1 or less. Alternatively, the "k+1" condition may be expressed as follows: in one cell, the number of DCI sizes is k+1 or less, where the number of DCI sizes scrambled by a C-RNTI is k or less.

[0034] In one embodiment, the value of k can be set as needed, for example, it can be 3 or 4.

[0035] In the scenario shown in FIG. 1 , DCI 0_3 and DCI 1_3 transmitted from a network device are scheduled to Cell #2. If the number of DCI sizes in Cell #2 does not satisfy a preset condition, the process of performing DCI size alignment may include aligning the size of DCI 0_3 with the size of DCI 1_3. For example, if the size of DCI 1_3 is larger than the size of DCI 0_3, zero padding may be performed on DCI 0_3. For example, a bit with a value of 0 may be added after the last bit of DCI 0_3, so that the size of DCI 0_3 after zero padding is the same as the size of DCI 1_3.

[0036] However, if the network device schedules Cell#4 by transmitting DCI 0_3 and DCI 0_1 instead of DCI 1_3, i.e., if the number of DCI sizes in Cell#4 does not satisfy the preset condition, the process of aligning the size of DCI 0_3 with the size of DCI 1_3 will be eliminated and the size of DCI 0_3 will be aligned with the size of DCI 0_1. Similarly, if the network device schedules Cell#1 by transmitting DCI 1_3 and DCI 1_1 instead of DCI 0_3, i.e., if the number of DCI sizes in Cell#1 does not satisfy the preset condition, it is preferable to align the size of DCI 1_3 with the size of DCI 1_1 in Cell#1.

[0037] Because the alignment process in which DCI 0_3 participates in Cell #2 is different from the alignment process in which DCI 0_3 participates in Cell #4, the size of DCI 0_3 transmitted on Cell #2 may differ from that of DCI 0_3 transmitted on Cell #4. Similarly, because the alignment process in which DCI 1_3 participates in Cell #2 is different from the alignment process in which DCI 1_3 participates in Cell #1, the size of DCI 1_3 transmitted on Cell #2 may differ from that of DCI 1_3 transmitted on Cell #1.

[0038] As a result, when a network device schedules multiple cells through one MC-DCI, a problem occurs in that the size of the MC-DCI varies when the same MC-DCI schedules different cells, which causes a problem in the terminal and the network device when determining the size of the MC-DCI to be actually transmitted.

[0039] 2 is a schematic flowchart of a method for determining size alignment of downlink control information according to an embodiment of the present disclosure. The method for determining size alignment of downlink control information according to this embodiment may be performed by a terminal, which may include, but is not limited to, a communication device such as a mobile phone, a tablet, a wearable device, a sensor, an Internet of Things device, etc. The terminal may communicate with a network device, which may include, but is not limited to, a network device in a communication system such as 4G, 5G, or 6G, such as a base station, a core network, etc.

[0040] As shown in FIG. 2, the method for determining size alignment of downlink control information may include the following steps 201-202.

[0041] In step S201, first downlink control information for scheduling multiple cells is received.

[0042] In step S202, determine a size alignment of legacy downlink control information in each cell scheduled by the first downlink control information, where in at least one first cell corresponding to the first downlink control information, the sum of the size of the first downlink control information and the size of the aligned legacy downlink control information is less than or equal to a first threshold.

[0043] For the sake of simplicity in the description of the following embodiments, the primary downlink control information is represented by MC-DCI, and the conventional downlink control information is represented by legacy DCI.

[0044] In addition, the process of performing DCI size alignment in a cell shown in the embodiments of the present disclosure is performed on the premise that the number of DCI sizes in the cell does not satisfy a predetermined condition, and the predetermined condition includes a "k+1" condition, where k is equal to 3 or 4.

[0045] In one embodiment, the legacy DCI may be referred to as a conventional DCI, and the legacy DCI may include at least one of DCI 0_0, DCI 0_1, DCI 1_0, DCI 1_1, DCI 2_0, and DCI 2_1. Here, the alignment process of the legacy DCI can be referred to in the prior art, and the present disclosure will not provide a detailed description here.

[0046] In one embodiment, the network device may perform size alignment of the legacy DCI in each cell scheduled by the MC-DCI, and ensure that the sum of the number of sizes of the MC-DCI and the number of sizes of the aligned legacy DCI is less than or equal to a first threshold, and may transmit the MC-DCI and the aligned legacy DCI to the terminal.

[0047] According to an embodiment of the present disclosure, a terminal can receive MC-DCI for scheduling multiple cells, determine multiple cells to be scheduled by the MC-DCI, and determine size alignment of legacy DCI in each of the multiple cells. For each cell, size alignment is performed only on legacy DCI in the cell, and the MC-DCI does not participate in the alignment, which is advantageous in simplifying the alignment inference process by the terminal. The sum of the number of MC-DCI sizes and the number of aligned legacy DCI sizes in the multiple cells is less than or equal to the product of the number of at least one first cell corresponding to the MC-DCI and the first number, which helps ensure that the total number of DCI sizes in the at least one first cell is not excessive, thereby preventing the terminal from performing blind DCI detection with excessive complexity.

[0048] Furthermore, since size alignment is performed only on legacy DCI within each cell and MC-DCI is not involved in the alignment, the size of the MC-DCI does not change for different cells, thereby avoiding the problem that when the network device schedules multiple cells via one MC-DCI, the size of the MC-DCI that needs to be transmitted in different cells is different.

[0049] Note that the operation of performing size alignment of DCI is performed by a network device, and the network device performs the alignment operation and then transmits the DCI to the terminal. When the terminal determines the size alignment of one or more DCI, the terminal infers the process by which the network device aligns the one or more DCI. For example, the terminal infers that the network device will perform an alignment process such as zero padding or truncation on the DCI, thereby determining the size of the aligned DCI and performing blind detection of the DCI. The terminal does not perform alignment operations such as zero padding or truncation on the DCI.

[0050] In one embodiment, the first threshold is equal to the product of the number of at least one first cell and the first number.

[0051] In one embodiment, the first number may be determined by a protocol or may be set by a network device, for example, the first number may be three or four.

[0052] In one embodiment, the first threshold may be indicated to the terminal by the network device or may be specified by a protocol.

[0053] For example, if the first threshold is specified by a protocol, the first threshold may be the product of the number of at least one first cell and the first number, and the terminal can determine the number of the at least one first cell and calculate the product of the number of the at least one first cell and the first number as the first threshold.

[0054] For example, when the first threshold is indicated to the terminal by the network device, the terminal may receive indication information transmitted from the network device and determine the first threshold based on the indication information, where the indication information includes, but is not limited to, at least one of Radio Resource Control (RRC) signaling, a Media Access Control Control Element (MAC CE), an MC-DCI, and a legacy DCI.

[0055] The following examples mainly exemplify the present disclosure when the first threshold is equal to the product of the number of at least one first cell and the first number.

[0056] In one embodiment, the conventional downlink control information in each cell scheduled by the first downlink control information satisfies a predetermined condition, where the predetermined condition is: the number of conventional downlink control information scrambled by a Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number; The number of conventional downlink control information scrambled by an RNTI other than the C-RNTI is less than or equal to a second number.

[0057] In one embodiment, the first number is 3 or 4, and the second number is 1. For example, if the first number is 3 and the second number is 1, the preset condition may be referred to as a "3+1" condition. That is, in one cell, the number of legacy DCI sizes scrambled by the C-RNTI is 3 or less, and the number of legacy DCI sizes scrambled by an RNTI other than the C-RNTI is 1 or less. Alternatively, this may be expressed as the number of legacy DCI sizes being 4 or less, and the number of legacy DCI sizes scrambled by the C-RNTI being 3 or less, in one cell.

[0058] FIG. 3 is a schematic diagram of another application scenario shown in an embodiment of the present disclosure.

[0059] As shown in FIG. 3, still take as an example that MC-DCI schedules four cells, and the four cells are Cell#1, Cell#2, Cell#3, and Cell#4, respectively.

[0060] The MC-DCI includes MC-DCI for scheduling uplink transmissions of multiple cells, e.g., DCI 0_3, and further includes MC-DCI for scheduling downlink transmissions of multiple cells, e.g., DCI 1_3, where DCI 0_3 is used to schedule uplink transmissions of Cell#2 and Cell#4, and DCI 1_3 is used to schedule downlink transmissions of Cell#1, Cell#2, and Cell#3.

[0061] For example, in Cell#1, the DCI received by the terminal includes DCI 1_3, DCI 1_1, and DCI 0_1. In Cell#2, the DCI received by the terminal includes DCI 0_3 and DCI 1_3. In Cell#3, the DCI received by the terminal includes DCI 1_3. In Cell#4, the DCI received by the terminal includes DCI 0_3, DCI 1_1, and DCI 0_1.

[0062] DCI 1_1 and DCI 0_1 belong to legacy DCI, and DCI 0_3 and DCI 1_3 belong to MC-DCI.

[0063] According to an embodiment of the present disclosure, in each cell, the size of the legacy DCI is aligned, and the MC-DCI does not participate in the alignment.

[0064] Therefore, the terminal can determine that in Cell #1, the sizes of Legacy DCIs such as DCI 1_1 and DCI 0_1 are aligned and DCI 1_3 does not participate in the alignment, that in Cell #2, the sizes of Legacy DCIs are aligned and DCI 0_3 and DCI 1_3 do not participate in the alignment, that in Cell #3, the sizes of Legacy DCIs are aligned and DCI 1_3 does not participate in the alignment, and that in Cell #4, the sizes of Legacy DCIs such as DCI 1_1 and DCI 0_1 are aligned and DCI 0_3 does not participate in the alignment.

[0065] As can be seen from the above, in the four cells, DCI 0_3 and DCI 1_3 do not participate in alignment, so the sizes of DCI 0_3 and DCI 1_3 do not change. In this case, when a network device schedules multiple cells via one MC-DCI, the size of the MC-DCI that needs to be transmitted in different cells may remain the same. For example, when scheduling Cell#2 and Cell#4 via DCI 0_3, the size of DCI 0_3 transmitted on Cell#2 and Cell#4 may be the same.

[0066] In addition, the at least one first cell corresponding to the MC-DCI may include only one or more cells among the cells actually scheduled by the MC-DCI, or may include cells other than the cell actually scheduled by the MC-DCI.

[0067] For example, the cells that can be scheduled by MC-DCI include six cells: Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6, and the cells that are actually scheduled by MC-DCI at any one time are Cell#1, Cell#2, Cell#3, and Cell#4.

[0068] In this case, the at least one first cell corresponding to the MC-DCI may be one or more cells from Cell#1, Cell#2, Cell#3, and Cell#4, or may be one or more cells from Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6.

[0069] Hereinafter, at least one first cell corresponding to MC-DCI will be exemplarily described through several embodiments.

[0070] In one embodiment, the at least one first cell is any one of a plurality of cells scheduled by the first downlink control information, in which case, in any cell scheduled by the MC-DCI, the sum of the size of the MC-DCI and the size of the aligned legacy DCI is equal to or less than the product of the number of the at least one first cell and the first number.

[0071] Since the at least one first cell is any one of the multiple cells scheduled by the first downlink control information, the number of the at least one first cell is 1, and for example, if the first number is 3, in any one cell scheduled by the MC-DCI, the sum of the size of the MC-DCI and the size of the aligned legacy DCI is 3 or less.

[0072] In one embodiment, the first downlink control information comprises: first downlink control information for scheduling downlink transmission, such as DCI 1_3; and first downlink control information for scheduling uplink transmission, such as DCI 0_3.

[0073] Hereinafter, for ease of illustration, DCI 1_3 will denote the first downlink control information for scheduling downlink transmission, and DCI 0_3 will denote the first downlink control information for scheduling uplink transmission.

[0074] In one embodiment, the at least one cell includes a cell that is actually scheduled by the MC-DCI, or the at least one cell includes a cell that can be scheduled by the MC-DCI, where the cell that can be scheduled by the MC-DCI includes a cell that is actually scheduled by the MC-DCI. The cell that can be scheduled by the MC-DCI may be determined by a protocol or configured by a network device, and the cell that is actually scheduled by the MC-DCI is one or more cells determined from the cells that can be scheduled by the MC-DCI, and may change according to the cell that the MC-DCI actually schedules each time.

[0075] For example, the at least one cell may be represented by a cell set, and in one embodiment, the at least one first cell may be represented by: a cell included in a cell set corresponding to first downlink control information for scheduling downlink transmission; a cell included in a cell set corresponding to first downlink control information for scheduling uplink transmission; The control information includes at least one of a cell set corresponding to the first downlink control information for scheduling downlink transmission, and a cell included in the cell set corresponding to the first downlink control information for scheduling uplink transmission.

[0076] In one embodiment, if the at least one first cell is a cell included in the cell set corresponding to DCI 1_3, the number of the at least one first cell is the number of cells in the cell set corresponding to DCI 1_3.

[0077] For example, the cell set corresponding to DCI 1_3 is a cell set consisting of cells that can be scheduled by DCI 1_3, and if the number of cells that can be scheduled by DCI 1_3 is four, then at least one first cell is one of these four cells, i.e., the number of at least one first cell is four.

[0078] For example, if the first number is equal to 3, in at least one first cell corresponding to DCI 1_3, the sum of the size of DCI 1_3 and the size of the aligned legacy DCI is the product of the number of at least one first cell, 4, and the first number, 3, i.e., 12 or less.

[0079] For example, the cell set corresponding to DCI 1_3 is a cell set consisting of cells that are actually scheduled by DCI 1_3. For example, if the number of cells that are actually scheduled by DCI 1_3 is 3, at least one first cell is one of these three cells, i.e., the number of at least one first cell is 3.

[0080] For example, if the first number is equal to 3, in at least one first cell corresponding to DCI 1_3, the sum of the size of DCI 1_3 and the size of the aligned legacy DCI is the product of the number of the at least one first cell, 3, and the first number, 3, i.e., 9 or less.

[0081] In one embodiment, if the at least one first cell is a cell included in the cell set corresponding to DCI 0_3, the number of the at least one first cell is the number of cells in the cell set corresponding to DCI 0_3.

[0082] For example, the cell set corresponding to DCI 0_3 is a cell set consisting of cells that can be scheduled by DCI 0_3, and if the number of cells that can be scheduled by DCI 0_3 is 4, then at least one first cell is one of these four cells, i.e., the number of at least one first cell is 4.

[0083] For example, if the first number is equal to 3, in at least one first cell corresponding to DCI 0_3, the sum of the size of DCI 0_3 and the size of the aligned legacy DCI is the product of the number of at least one first cell, 4, and the first number, 3, i.e., 12 or less.

[0084] For example, the cell set corresponding to DCI 0_3 is a cell set consisting of cells that are actually scheduled by DCI 0_3, and for example, if the number of cells that are actually scheduled by DCI 0_3 is 3, at least one first cell is one of these three cells, that is, the number of at least one first cell is 3.

[0085] For example, if the first number is equal to 3, in at least one first cell corresponding to DCI 1_3, the sum of the size of DCI 1_3 and the size of the aligned legacy DCI is the product of the number of the at least one first cell, 3, and the first number, 3, i.e., 9 or less.

[0086] In one embodiment, the at least one first cell is a cell included in the cell set corresponding to DCI 0_3 and the cell set corresponding to DCI 1_3, and in this case, the number of the at least one first cell is the number of cells in the cell set corresponding to DCI 0_3 and the cell set corresponding to DCI 1_3, i.e., the number of cells in the union of the cell set corresponding to DCI 0_3 and the cell set corresponding to DCI 1_3.

[0087] For example, the cell set corresponding to DCI 0_3 is a cell set consisting of cells that can be scheduled by DCI 0_3, and the cell set corresponding to DCI 1_3 is a cell set consisting of cells that can be scheduled by DCI 1_3. The cells that can be scheduled by DCI 0_3 are Cell#1, Cell#2, Cell#3, and Cell#5, and the cells that can be scheduled by DCI 1_3 are Cell#1, Cell#2, Cell#4, and Cell#6. In this case, the cells included in the cell set {Cell#1, Cell#2, Cell#3, Cell#5} corresponding to DCI 0_3 and the cell set {Cell#1, Cell#2, Cell#4, Cell#6} corresponding to DCI 1_3 are Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6, and therefore the number of at least one first cell is 6.

[0088] For example, if the first number is equal to 3, in at least one first cell corresponding to DCI 0_3 and DCI 1_3, the sum of the sizes of DCI 0_3 and DCI 1_3 and the size of the aligned legacy DCI is the product of the number of at least one first cell, 6, and the first number, 3, i.e., 18 or less.

[0089] For example, the cell set corresponding to DCI 0_3 is a cell set consisting of cells actually scheduled by DCI 0_3, and the cell set corresponding to DCI 1_3 is a cell set consisting of cells actually scheduled by DCI 1_3. The cells actually scheduled by DCI 0_3 are Cell#1, Cell#2, and Cell#3, and the cells actually scheduled by DCI 1_3 are Cell#2 and Cell#4. In this case, the cells included in the cell set {Cell#1, Cell#2, Cell#3} corresponding to DCI 0_3 and the cell set {Cell#2, Cell#4} corresponding to DCI 1_3 are Cell#1, Cell#2, Cell#3, and Cell#4, and therefore the number of at least one first cell is 4.

[0090] For example, if the first number is equal to 3, in at least one first cell corresponding to DCI 1_3, the sum of the size of DCI 1_3 and the size of the aligned legacy DCI is the product of the number of the at least one first cell, 3, and the first number, 3, i.e., 9 or less.

[0091] Regarding which of the above embodiments the at least one first cell is determined by, the terminal may determine it based on a predefined rule, may determine it based on an instruction from a network device, or may determine it based on the terminal's own capabilities reported by the terminal.

[0092] In addition, the cell set is not limited to the above two situations, i.e., the cell set is not limited to the cell set consisting of cells that can be scheduled by MC-DCI and the cell set consisting of cells that are actually scheduled by MC-DCI. Hereinafter, the cell set will be described by way of example through several embodiments.

[0093] In one embodiment, the cell set comprises: A cell set consisting of cells that are actually scheduled by MC-DCI, for example, a cell set corresponding to DCI 0_3 is a cell set consisting of cells that are actually scheduled by DCI 0_3, and for example, a cell set corresponding to DCI 1_3 is a cell set consisting of cells that are actually scheduled by DCI 1_3; A cell set consisting of cells that can be scheduled by MC-DCI, for example, a cell set corresponding to DCI 0_3 is a cell set consisting of cells that can be scheduled by DCI 0_3, and for example, a cell set corresponding to DCI 1_3 is a cell set consisting of cells that can be scheduled by DCI 1_3; A cell set consisting of cells having the same configuration parameters, including but not limited to a set identifier, a cell identifier, a number, and a carrier indicator field (CIF); a cell set determined based on signaling transmitted from a network device, for example, a cell set corresponding to DCI 0_3 is a cell set determined based on signaling received from a cell actually scheduled by DCI 0_3, and a cell set corresponding to DCI 1_3 is a cell set determined based on signaling received from a cell actually scheduled by DCI 1_3; and a cell set determined based on a predefined rule.

[0094] In one embodiment, in any one of the plurality of cells scheduled by the first downlink control information for scheduling downlink transmission, the number of sizes of aligned conventional downlink control information is equal to or less than a third number, or In any one of the plurality of cells scheduled by the first downlink control information for scheduling uplink transmission, the number of sizes of aligned conventional downlink control information is equal to or less than a third number, or In any one cell of the plurality of cells scheduled by the first downlink control information for scheduling downlink transmission, and in any one cell of the plurality of cells scheduled by the first downlink control information for scheduling uplink transmission, the number of sizes of aligned conventional downlink control information is less than or equal to a third number.

[0095] In one embodiment, the third number is two or three.

[0096] In one embodiment, the network device can adjust the configuration so that the number of aligned legacy DCI sizes in any one of the multiple cells scheduled by DCI 0_3 is less than or equal to a third number.

[0097] Therefore, since the number of aligned legacy DCI sizes is small in any one of the multiple cells scheduled by DCI 0_3, it becomes easy to ensure that in at least one first cell corresponding to DCI 0_3, the total number of DCI 0_3 sizes and aligned legacy DCI sizes is less than or equal to the product of the number of at least one first cell and the first number.

[0098] For example, the third number is 2, and DCI 0_3 is introduced in a cell scheduled by DCI 0_3, but it can still be ensured that in at least one first cell corresponding to DCI 0_3, the sum of the size of DCI 0_3 and the size of the aligned legacy DCI is less than or equal to the product of the number of at least one first cell and the first number.

[0099] For example, the number of the at least one first cell corresponding to DCI 0_3 is 1, the first number is 3, and the product of the number of the at least one first cell and the first number is 3. For example, the number of sizes of the aligned legacy DCI is equal to the third number, 2, and the number of sizes of DCI 0_3 is 1. In this case, the total number of the sizes of DCI 0_3 and the aligned legacy DCI is 3, which is equal to the product of the number of the at least one first cell and the first number, 3.

[0100] In one embodiment, the network device can adjust its configuration so that the number of aligned legacy DCI sizes in any one of the multiple cells scheduled by DCI 1_3 is less than or equal to a third number.

[0101] Therefore, since the number of aligned legacy DCI sizes is small in any one of the multiple cells scheduled by DCI 1_3, it becomes easy to ensure that in at least one first cell corresponding to DCI 1_3, the total number of DCI 1_3 sizes and aligned legacy DCI sizes is less than or equal to the product of the number of at least one first cell and the first number.

[0102] For example, when the third number is 3 and DCI 1_3 is introduced in a cell scheduled by DCI 1_3, it is possible to ensure that in at least one first cell corresponding to DCI 1_3, the sum of the size of DCI 1_3 and the size of the aligned legacy DCI is less than or equal to the product of the number of at least one first cell and the first number.

[0103] For example, the number of the at least one first cell corresponding to DCI 1_3 is 1, the first number is 4, and the product of the number of the at least one first cell and the first number is 4. For example, the number of sizes of the aligned legacy DCI is equal to the third number, 3, and the number of sizes of DCI 1_3 is 1. In this case, the total number of the sizes of DCI 1_3 and the aligned legacy DCI is 4, which is equal to the product of the number of the at least one first cell and the first number, 4.

[0104] In one embodiment, the network device can adjust its configuration so that the number of aligned legacy DCI sizes in any one of the multiple cells scheduled by DCI 0_3 and in any one of the multiple cells scheduled by DCI 1_3 is less than or equal to a third number.

[0105] Therefore, since the number of aligned legacy DCI sizes is small in any one of the multiple cells scheduled by DCI 0_3 and in any one of the multiple cells scheduled by DCI 1_3, it becomes easy to ensure that the total number of the sizes of DCI 0_3 and DCI 1_3 and the aligned legacy DCI sizes is less than or equal to the product of the number of at least one first cell and the first number in at least one first cell corresponding to DCI 0_3 and in any one of the multiple cells scheduled by DCI 1_3.

[0106] For example, if the third number is 2, DCI 0_3 is introduced in a cell scheduled by DCI 0_3, and DCI 1_3 is introduced in a cell scheduled by DCI 1_3, it can still be ensured that in at least one first cell corresponding to DCI 1_3 and DCI 1_3, the total number of the sizes of DCI 1_3 and DCI 1_3 and the size of the aligned legacy DCI is less than or equal to the product of the number of at least one first cell and the first number.

[0107] For example, the number of the at least one first cell corresponding to DCI 0_3 and DCI 1_3 is 1, the first number is 4, and the product of the number of the at least one first cell and the first number is 4. For example, the number of sizes of the aligned legacy DCI is equal to the third number, 2, and the number of sizes of DCI 0_3 and DCI 1_3 is 2. In this case, the total number of the sizes of DCI 0_3 and DCI 1_3 and the size of the aligned legacy DCI is 4, which is equal to the product of the number of the at least one first cell and the first number, 4.

[0108] 4 is a schematic flowchart of a method for determining size alignment of downlink control information according to an embodiment of the present disclosure. The method for determining size alignment of downlink control information according to this embodiment may be performed by a terminal, which may include, but is not limited to, a communication device such as a mobile phone, a tablet, a wearable device, a sensor, an Internet of Things device, etc. The terminal may communicate with a network device, which may include, but is not limited to, a network device in a communication system such as 4G, 5G, 6G, etc., such as a base station, a core network, etc.

[0109] As shown in FIG. 4, the method for determining size alignment of downlink control information may include the following steps S401 to S403.

[0110] In step S401, first downlink control information for scheduling multiple cells is received.

[0111] In step S402, a reference cell is determined from at least one first cell corresponding to the first downlink control information, and the reference cell may be one cell or multiple cells.

[0112] In step S403, determine a size alignment between the conventional downlink control information and the first downlink control information in a reference cell, and determine a size alignment of the conventional downlink control information in a second cell in at least one first cell, where the second cell is a cell other than the reference cell in the first cell.

[0113] In the following embodiments, for the sake of simplicity, the primary downlink control information is represented by MC-DCI, and the conventional downlink control information is represented by legacy DCI.

[0114] In addition, the process of performing DCI size alignment in a cell shown in the embodiments of the present disclosure is performed on the premise that the number of DCI sizes in the cell does not satisfy a predetermined condition, and the predetermined condition includes a "k+1" condition, where k is equal to 3 or 4.

[0115] In one embodiment, the legacy DCI may be referred to as a conventional DCI, and the legacy DCI may include at least one of DCI 0_0, DCI 0_1, DCI 1_0, DCI 1_1, DCI 2_0, and DCI 2_1. Here, the alignment process of the legacy DCI can be referred to in the prior art, and the present disclosure will not provide a detailed description here.

[0116] In one embodiment, the network device can determine a reference cell from among at least one first cell that supports the MC-DCI. In the reference cell, size alignment of the DCI is performed, and the DCI participating in the alignment process includes the MC-DCI and the legacy DCI. Size alignment of the DCI is performed in cells other than the reference cell of the at least one first cell, and the DCI participating in the alignment process includes the legacy DCI but does not include the MC-DCI. Furthermore, the network device can transmit the DCI to the terminal.

[0117] According to an embodiment of the present disclosure, a terminal can receive MC-DCI for scheduling multiple cells, determine at least one first cell corresponding to the MC-DCI, determine that in a reference cell, the legacy DCI and the MC-DCI have participated in a DCI size alignment process, and determine that in cells other than the reference cell of the at least one first cell, only the legacy DCI has participated in the DCI size alignment process.

[0118] In at least one first cell, in cells other than the reference cell, only legacy DCI participates in the DCI size alignment process, and MC-DCI does not participate in the alignment process, which is advantageous for simplifying the alignment inference process by the terminal. And, in at least one first cell, both legacy DCI and MC-DCI participate in the alignment process in the reference cell, which helps ensure that the total number of DCI sizes in the at least one first cell is not excessive, thereby preventing the terminal from becoming overly complex in blindly detecting DCI.

[0119] Furthermore, in cells other than the reference cell, size alignment is performed only on the legacy DCI, and the MC-DCI does not participate in the alignment, so the size of the MC-DCI does not change for different cells, and therefore, at least in cells other than the reference cell, when the network device schedules multiple cells via one MC-DCI, the problem of different sizes of MC-DCI that need to be transmitted in different cells is avoided.

[0120] Note that the operation of performing size alignment of DCI is performed by a network device, and the network device performs the alignment operation and then transmits the DCI to the terminal. When the terminal determines the size alignment of one or more DCI, the terminal infers the process by which the network device aligns the one or more DCI. For example, the terminal infers that the network device will perform an alignment process such as zero padding or truncation on the DCI, thereby determining the size of the aligned DCI and performing blind detection of the DCI. The terminal does not perform alignment operations such as zero padding or truncation on the DCI.

[0121] In one embodiment, the conventional downlink control information in each cell scheduled by the first downlink control information satisfies a predetermined condition, where the predetermined condition is: the number of conventional downlink control information scrambled by a Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number; The number of conventional downlink control information scrambled by an RNTI other than the C-RNTI is less than or equal to a second number.

[0122] In one embodiment, the first number is 3 or 4, and the second number is 1. For example, if the first number is 3 and the second number is 1, the preset condition may be referred to as a "3+1" condition. That is, in one cell, the number of legacy DCI sizes scrambled by the C-RNTI is 3 or less, and the number of legacy DCI sizes scrambled by an RNTI other than the C-RNTI is 1 or less. Alternatively, this may be expressed as the number of legacy DCI sizes being 4 or less, and the number of legacy DCI sizes scrambled by the C-RNTI being 3 or less, in one cell.

[0123] FIG. 5 is a schematic diagram of another application scenario shown in an embodiment of the present disclosure.

[0124] As shown in FIG. 5, still take as an example that MC-DCI schedules four cells, and the four cells are Cell#1, Cell#2, Cell#3, and Cell#4, respectively.

[0125] The MC-DCI includes MC-DCI for scheduling uplink transmissions of multiple cells, e.g., DCI 0_3, and further includes MC-DCI for scheduling downlink transmissions of multiple cells, e.g., DCI 1_3, where DCI 0_3 is used to schedule uplink transmissions of Cell#2 and Cell#4, and DCI 1_3 is used to schedule downlink transmissions of Cell#1, Cell#2, and Cell#4.

[0126] For example, in Cell#1, the DCI received by the terminal includes DCI 1_3, DCI 1_1, and DCI 0_1. In Cell#2, the DCI received by the terminal includes DCI 0_3 and DCI 1_3. In Cell#3, the DCI received by the terminal includes DCI 1_3. In Cell#4, the DCI received by the terminal includes DCI 0_3, DCI 1_1, and DCI 0_1.

[0127] Here, DCI 1_1 and DCI 0_1 belong to legacy DCI, and DCI 0_3 and DCI 1_3 belong to MC-DCI.

[0128] According to an embodiment of the present disclosure, for example, the at least one cell is Cell#1, Cell#2, Cell#3, or Cell#4, where the reference cell is Cell#2 and the cells other than the reference cell are Cell#1, Cell#3, and Cell#4.

[0129] In Cell#2, when the network device performs size alignment of DCI, both the legacy DCI and the MC-DCI can participate in the alignment process, and thus DCI 0_3 and DCI 1_3 can be aligned.

[0130] In Cell#1, Cell#3, and Cell#4, when network devices perform size alignment of DCIs, only legacy DCIs participate in the alignment process, and MC-DCIs do not, so there is no need to perform size alignment of MC-DCIs and legacy DCIs. For example, in Cell#1, size alignment of legacy DCIs such as DCI 1_1 and DCI 0_1 can be performed, and there is no need to align the size of DCI 1_3 with the size of DCI 1_1 or DCI 0_1. For example, in Cell#2, both legacy DCIs and MC-DCIs participate in the alignment process, and the alignment process includes, for example, size alignment of DCI 1_3 or DCI 0_3. For example, in Cell#3, size alignment of legacy DCIs can be performed, and there is no need to align the size of DCI 1_3 with the size of legacy DCIs. For example, in Cell#4, the size of DCI 1_1 and the size of DCI 0_1 can be aligned, and the size of DCI 0_3 does not need to be aligned with the size of DCI 1_1 or DCI 0_1.

[0131] In response to this, the terminal may determine that in Cell#1 the size of DCI 1_1 and the size of DCI 0_1 are aligned and that DCI 1_3 does not participate in the alignment, that in Cell#2 the sizes of DCI 0_3 and DCI 1_3 are aligned, that in Cell#3 the size of legacy DCI participates in the alignment and DCI 1_3 does not participate in the alignment, and that in Cell#4 the size of DCI 1_1 and the size of DCI 0_1 are aligned and DCI 0_3 does not participate in the alignment.

[0132] As can be seen from the above, in the four cells, DCI 0_3 and DCI 1_3 of only the reference cell participate in alignment, and DCI 0_3 and DCI 1_3 do not participate in alignment in cells other than the reference cell. Therefore, the sizes of DCI 0_3 and DCI 1_3 do not change in cells other than the reference cell. Therefore, when a network device schedules multiple cells via one MC-DCI, the size of the MC-DCI that needs to be transmitted in cells other than the reference cell may remain the same. For example, when scheduling Cell#1 and Cell#3 via DCI 1_3, the size of DCI 1_3 transmitted in Cell#1 and Cell#3 may be the same.

[0133] In addition, the at least one first cell corresponding to the MC-DCI may include only one or more cells among the cells actually scheduled by the MC-DCI, or may include cells other than the cells actually scheduled by the MC-DCI.

[0134] For example, the cells that can be scheduled by MC-DCI include six cells: Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6, and the cells that are actually scheduled by MC-DCI at any one time are Cell#1, Cell#2, Cell#3, and Cell#4.

[0135] In this case, the at least one first cell corresponding to the MC-DCI may be one or more cells from Cell#1, Cell#2, Cell#3, and Cell#4, or may be one or more cells from Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6.

[0136] Hereinafter, at least one first cell corresponding to MC-DCI will be exemplarily described through several embodiments.

[0137] In one embodiment, the first downlink control information comprises: first downlink control information for scheduling downlink transmission, such as DCI 1_3; and first downlink control information for scheduling uplink transmission, such as DCI 0_3.

[0138] Hereinafter, for convenience of explanation, the first downlink control information for scheduling downlink transmission is denoted by DCI 1_3, and the first downlink control information for scheduling uplink transmission is denoted by DCI 0_3.

[0139] In one embodiment, the at least one cell includes a cell that is actually scheduled by the MC-DCI, or the at least one cell includes a cell that can be scheduled by the MC-DCI, where the cell that can be scheduled by the MC-DCI includes a cell that is actually scheduled by the MC-DCI. The cell that can be scheduled by the MC-DCI may be determined by a protocol or configured by a network device, and the cell that is actually scheduled by the MC-DCI is one or more cells determined from the cells that can be scheduled by the MC-DCI, and may change according to the cell that the MC-DCI actually schedules each time.

[0140] For example, at least one cell may be represented by a cell set, and in one embodiment, at least one first cell may be represented by: a cell included in a cell set corresponding to first downlink control information for scheduling downlink transmission; a cell included in a cell set corresponding to first downlink control information for scheduling uplink transmission; The control information includes at least one of a cell set corresponding to the first downlink control information for scheduling downlink transmission, and a cell included in the cell set corresponding to the first downlink control information for scheduling uplink transmission.

[0141] In one embodiment, the at least one first cell is a cell included in a cell set corresponding to DCI 1_3, for example, the cell set corresponding to DCI 1_3 is a cell set consisting of cells that can be scheduled by DCI 1_3, or the cell set corresponding to DCI 1_3 is a cell set consisting of cells that are actually scheduled by DCI 1_3.

[0142] In one embodiment, the at least one first cell is a cell included in a cell set corresponding to DCI 0_3, for example, a cell set corresponding to DCI 0_3 is a cell set consisting of cells that can be scheduled by DCI 0_3, or a cell set corresponding to DCI 0_3 is a cell set consisting of cells that are actually scheduled by DCI 0_3.

[0143] In one embodiment, the at least one first cell is a cell included in a cell set corresponding to DCI 0_3 and a cell set corresponding to DCI 1_3.

[0144] For example, the cell set corresponding to DCI 0_3 is a cell set consisting of cells that can be scheduled by DCI 0_3, and the cell set corresponding to DCI 1_3 is a cell set consisting of cells that can be scheduled by DCI 1_3. The cells that can be scheduled by DCI 0_3 are Cell#1, Cell#2, Cell#3, and Cell#5, and the cells that can be scheduled by DCI 1_3 are Cell#1, Cell#2, Cell#4, and Cell#6. In this case, the cells included in the cell set {Cell#1, Cell#2, Cell#3, Cell#5} corresponding to DCI 0_3 and the cell set {Cell#1, Cell#2, Cell#4, Cell#6} corresponding to DCI 1_3 are Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6.

[0145] For example, the cell set corresponding to DCI 0_3 is a cell set consisting of cells that are actually scheduled by DCI 0_3, and the cell set corresponding to DCI 1_3 is a cell set consisting of cells that are actually scheduled by DCI 1_3. The cells that are actually scheduled by DCI 0_3 are Cell#1, Cell#2, and Cell#3, and the cells that are actually scheduled by DCI 1_3 are Cell#2 and Cell#4. In this case, the cells included in the cell set {Cell#1, Cell#2, Cell#3} corresponding to DCI 0_3 and the cell set {Cell#2, Cell#4} corresponding to DCI 1_3 are Cell#1, Cell#2, Cell#3, and Cell#4.

[0146] Regarding which of the above embodiments the at least one first cell is determined by, the terminal may determine it based on a predefined rule, may determine it based on an instruction from a network device, or may determine it based on the terminal's own capabilities reported by the terminal.

[0147] In addition, the cell set is not limited to the above two situations, i.e., the cell set is not limited to the cell set consisting of cells that can be scheduled by MC-DCI and the cell set consisting of cells that are actually scheduled by MC-DCI. Hereinafter, the cell set will be described by way of example through several embodiments.

[0148] In one embodiment, the cell set comprises: A cell set consisting of cells that are actually scheduled by MC-DCI, for example, a cell set corresponding to DCI 0_3 is a cell set consisting of cells that are actually scheduled by DCI 0_3, and for example, a cell set corresponding to DCI 1_3 is a cell set consisting of cells that are actually scheduled by DCI 1_3; A cell set consisting of cells that can be scheduled by MC-DCI, for example, a cell set corresponding to DCI 0_3 is a cell set consisting of cells that can be scheduled by DCI 0_3, and for example, a cell set corresponding to DCI 1_3 is a cell set consisting of cells that can be scheduled by DCI 1_3; A cell set consisting of cells having the same configuration parameters, the configuration parameters including but not limited to a set identifier, a cell identifier, a number, and a carrier indicator field (CIF); a cell set determined based on signaling transmitted from a network device, for example, a cell set corresponding to DCI 0_3 is a cell set determined based on signaling received from a cell actually scheduled by DCI 0_3, and a cell set corresponding to DCI 1_3 is a cell set determined based on signaling received from a cell actually scheduled by DCI 1_3; and a cell set determined based on a predefined rule.

[0149] In one embodiment, the reference cell is At least one first cell with the smallest cell index; At least one first cell with the highest cell index; Among at least one first cell, a cell having the smallest number of sizes of configured conventional downlink control information; Among at least one first cell, a cell for detecting blind detection resources (e.g., BD, CCE, where BD indicates blind detection and CCE indicates control channel element); and a cell in which a search space corresponding to the first downlink control information is set among the at least one first cell.

[0150] 6 is a schematic flowchart of a method for performing size alignment of downlink control information according to an embodiment of the present disclosure. The method for performing size alignment of downlink control information according to this embodiment can be performed by a network device, and the network device can communicate with a terminal, and the network device includes, but is not limited to, a base station in a communication system, such as a 4G base station, a 5G base station, or a 6G base station. The terminal includes, but is not limited to, a communication device, such as a mobile phone, a tablet, a wearable device, a sensor, or an Internet of Things device.

[0151] As shown in FIG. 6, the method for performing size alignment of downlink control information may include the following steps S601 to S602.

[0152] In step S601, perform size alignment of conventional downlink control information in each cell scheduled by first downlink control information for scheduling multiple cells, where in at least one first cell corresponding to the first downlink control information, the sum of the size of the first downlink control information and the size of the aligned conventional downlink control information is less than or equal to a first threshold.

[0153] In step S602, the first downlink control information is transmitted to the terminal.

[0154] In the following embodiments, for the sake of simplicity, the primary downlink control information is represented by MC-DCI, and the conventional downlink control information is represented by legacy DCI.

[0155] In one embodiment, the legacy DCI may be referred to as a conventional DCI, and the legacy DCI may include at least one of DCI 0_0, DCI 0_1, DCI 1_0, DCI 1_1, DCI 2_0, and DCI 2_1. Here, the alignment process of the legacy DCI can be referred to in the prior art, and the present disclosure will not provide a detailed description here.

[0156] According to an embodiment of the present disclosure, a network device may perform size alignment of legacy DCIs in each cell scheduled by MC-DCI, ensure that the sum of the number of MC-DCI sizes and the number of aligned legacy DCI sizes is less than or equal to a first threshold, and transmit the MC-DCI and the aligned legacy DCI to a terminal.

[0157] Therefore, after receiving MC-DCI for scheduling multiple cells, the terminal can determine multiple cells to be scheduled by the MC-DCI and determine size alignment of the legacy DCI in each of the multiple cells. For each cell, size alignment is performed only on the legacy DCI in the cell, and the MC-DCI does not participate in the alignment, which is advantageous to simplifying the alignment inference process by the terminal. The sum of the number of MC-DCI sizes and the number of aligned legacy DCI sizes in the multiple cells is less than or equal to the product of the number of at least one first cell corresponding to the MC-DCI and the first number, which helps to ensure that the total number of DCI sizes in the at least one first cell is not excessive, thereby preventing the terminal from performing blind DCI detection with excessive complexity.

[0158] Furthermore, since size alignment is performed only on legacy DCI within each cell and MC-DCI is not involved in the alignment, the size of the MC-DCI does not change for different cells, thereby avoiding the problem that when the network device schedules multiple cells via one MC-DCI, the size of the MC-DCI that needs to be transmitted in different cells is different.

[0159] Note that the operation of performing size alignment of DCI is performed by a network device, and the network device performs the alignment operation and then transmits the DCI to the terminal. When the terminal determines the size alignment of one or more DCI, the terminal infers the process by which the network device aligns the one or more DCI. For example, the terminal infers that the network device will perform an alignment process such as zero padding or truncation on the DCI, thereby determining the size of the aligned DCI and performing blind detection of the DCI. The terminal does not perform alignment operations such as zero padding or truncation on the DCI.

[0160] In one embodiment, the first threshold is equal to the product of the number of at least one first cell and the first number.

[0161] In one embodiment, the first number may be set as desired, for example, three or four.

[0162] In one embodiment, the first threshold may be indicated to the terminal by the network device or may be specified by a protocol.

[0163] For example, if the first threshold is specified by a protocol, the first threshold may be equal to the product of the number of the at least one first cell and the first number, and the network device may determine the number of the at least one first cell and further calculate the product of the number of the at least one first cell and the first number to be the first threshold.

[0164] For example, when the first threshold is indicated to the terminal by the network device, the terminal may receive indication information transmitted from the network device and determine the first threshold based on the indication information, where the indication information includes, but is not limited to, at least one of radio resource control (RRC) signaling, a media access control layer control element (MAC CE), an MC-DCI, and a legacy DCI.

[0165] The following examples mainly exemplify the present disclosure when the first threshold is equal to the product of the number of at least one first cell and the first number.

[0166] In one embodiment, the conventional downlink control information in each cell scheduled by the first downlink control information satisfies a predetermined condition, where the predetermined condition is: the number of conventional downlink control information scrambled by a Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number; The number of conventional downlink control information scrambled by an RNTI other than the C-RNTI is less than or equal to a second number.

[0167] In one embodiment, the first number is 3 or 4, and the second number is 1. For example, if the first number is 3 and the second number is 1, the preset condition may be referred to as a "3+1" condition. That is, in one cell, the number of legacy DCI sizes scrambled by the C-RNTI is 3 or less, and the number of legacy DCI sizes scrambled by an RNTI other than the C-RNTI is 1 or less. Alternatively, this may be expressed as the number of legacy DCI sizes being 4 or less, and the number of legacy DCI sizes scrambled by the C-RNTI being 3 or less, in one cell.

[0168] Hereinafter, at least one first cell corresponding to MC-DCI will be exemplarily described through several embodiments.

[0169] In one embodiment, the at least one first cell is any one of a plurality of cells scheduled by the first downlink control information, and in this case, in any one cell scheduled by the MC-DCI, the sum of the size of the MC-DCI and the size of the aligned legacy DCI is equal to or less than the product of the number of the at least one first cell and the first number.

[0170] The at least one first cell is any one of the multiple cells scheduled by the first downlink control information, and therefore the number of the at least one first cell is 1, for example, the first number is 3, and in this case, in any one cell scheduled by the MC-DCI, the sum of the size of the MC-DCI and the size of the aligned legacy DCI is 3 or less.

[0171] In one embodiment, the first downlink control information comprises: first downlink control information for scheduling downlink transmission, such as DCI 1_3; and first downlink control information for scheduling uplink transmission, such as DCI 0_3.

[0172] Hereinafter, for convenience of explanation, the first downlink control information for scheduling downlink transmission is denoted by DCI 1_3, and the first downlink control information for scheduling uplink transmission is denoted by DCI 0_3.

[0173] In one embodiment, the at least one first cell comprises: a cell included in a cell set corresponding to first downlink control information for scheduling downlink transmission; a cell included in a cell set corresponding to first downlink control information for scheduling uplink transmission; The control information includes at least one of a cell set corresponding to the first downlink control information for scheduling downlink transmission, and a cell included in the cell set corresponding to the first downlink control information for scheduling uplink transmission.

[0174] In one embodiment, the at least one first cell is a cell included in a cell set corresponding to DCI 1_3, and in this case, the number of the at least one first cell is the number of cells in the cell set corresponding to DCI 1_3.

[0175] For example, the cell set corresponding to DCI 1_3 is a cell set consisting of cells that can be scheduled by DCI 1_3. For example, if the number of cells that can be scheduled by DCI 1_3 is 4, at least one first cell is one of these four cells, that is, the number of at least one first cell is 4.

[0176] For example, if the first number is equal to 3, in at least one first cell corresponding to DCI 1_3, the sum of the size of DCI 1_3 and the size of the aligned legacy DCI is less than or equal to the product of the number of at least one first cell, 4, and the first number, 3, i.e., 12.

[0177] For example, the cell set corresponding to DCI 1_3 is a cell set consisting of cells that are actually scheduled by DCI 1_3. For example, if the number of cells that are actually scheduled by DCI 1_3 is 3, at least one first cell is one of these three cells, i.e., the number of at least one first cell is 3.

[0178] For example, if the first number is equal to 3, in at least one first cell corresponding to DCI 1_3, the sum of the size of DCI 1_3 and the size of the aligned legacy DCI is the product of the number of the at least one first cell, 3, and the first number, 3, i.e., 9 or less.

[0179] In one embodiment, if the at least one first cell is a cell included in the cell set corresponding to DCI 0_3, the number of the at least one first cell is the number of cells in the cell set corresponding to DCI 0_3.

[0180] For example, the cell set corresponding to DCI 0_3 is a cell set consisting of cells that can be scheduled by DCI 0_3, and if the number of cells that can be scheduled by DCI 0_3 is 4, then at least one first cell is one of these four cells, i.e., the number of at least one first cell is 4.

[0181] For example, if the first number is equal to 3, in at least one first cell corresponding to DCI 0_3, the sum of the size of DCI 0_3 and the size of the aligned legacy DCI is the product of the number of at least one first cell, 4, and the first number, 3, i.e., 12 or less.

[0182] For example, the cell set corresponding to DCI 0_3 is a cell set consisting of cells that are actually scheduled by DCI 0_3, and for example, if the number of cells that are actually scheduled by DCI 0_3 is 3, at least one first cell is one of these three cells, that is, the number of at least one first cell is 3.

[0183] For example, if the first number is equal to 3, in at least one first cell corresponding to DCI 1_3, the sum of the size of DCI 1_3 and the size of the aligned legacy DCI is the product of the number of the at least one first cell, 3, and the first number, 3, i.e., 9 or less.

[0184] In one embodiment, the at least one first cell is a cell included in the cell set corresponding to DCI 0_3 and the cell set corresponding to DCI 1_3, and in this case, the number of the at least one first cell is the number of cells in the cell set corresponding to DCI 0_3 and the cell set corresponding to DCI 1_3, i.e., the number of cells in the union of the cell set corresponding to DCI 0_3 and the cell set corresponding to DCI 1_3.

[0185] For example, the cell set corresponding to DCI 0_3 is a cell set consisting of cells that can be scheduled by DCI 0_3, and the cell set corresponding to DCI 1_3 is a cell set consisting of cells that can be scheduled by DCI 1_3. The cells that can be scheduled by DCI 0_3 are Cell#1, Cell#2, Cell#3, and Cell#5, and the cells that can be scheduled by DCI 1_3 are Cell#1, Cell#2, Cell#4, and Cell#6. In this case, the cells included in the cell set {Cell#1, Cell#2, Cell#3, Cell#5} corresponding to DCI 0_3 and the cell set {Cell#1, Cell#2, Cell#4, Cell#6} corresponding to DCI 1_3 are Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6, and therefore the number of at least one first cell is 6.

[0186] For example, if the first number is equal to 3, in at least one first cell corresponding to DCI 0_3 and DCI 1_3, the sum of the sizes of DCI 0_3 and DCI 1_3 and the size of the aligned legacy DCI is the product of the number of at least one first cell, 6, and the first number, 3, i.e., 18 or less.

[0187] For example, the cell set corresponding to DCI 0_3 is a cell set consisting of cells actually scheduled by DCI 0_3, and the cell set corresponding to DCI 1_3 is a cell set consisting of cells actually scheduled by DCI 1_3. The cells actually scheduled by DCI 0_3 are Cell#1, Cell#2, and Cell#3, and the cells actually scheduled by DCI 1_3 are Cell#2 and Cell#4. In this case, the cells included in the cell set {Cell#1, Cell#2, Cell#3} corresponding to DCI 0_3 and the cell set {Cell#2, Cell#4} corresponding to DCI 1_3 are Cell#1, Cell#2, Cell#3, and Cell#4, and therefore the number of at least one first cell is 4.

[0188] For example, if the first number is equal to 3, in at least one first cell corresponding to DCI 1_3, the sum of the size of DCI 1_3 and the size of the aligned legacy DCI is the product of the number of the at least one first cell, 3, and the first number, 3, i.e., 9 or less.

[0189] Regarding which of the above embodiments the at least one first cell is determined by, the terminal may determine it based on a predefined rule, may determine it based on an instruction from a network device, or may determine it based on the terminal's own capabilities reported by the terminal.

[0190] In addition, the cell set is not limited to the above two situations, i.e., the cell set is not limited to the cell set consisting of cells that can be scheduled by MC-DCI and the cell set consisting of cells that are actually scheduled by MC-DCI. Hereinafter, the cell set will be described by way of example through several embodiments.

[0191] In one embodiment, the cell set comprises: A cell set consisting of cells that are actually scheduled by MC-DCI, for example, a cell set corresponding to DCI 0_3 is a cell set consisting of cells that are actually scheduled by DCI 0_3, and for example, a cell set corresponding to DCI 1_3 is a cell set consisting of cells that are actually scheduled by DCI 1_3; A cell set consisting of cells that can be scheduled by MC-DCI, for example, a cell set corresponding to DCI 0_3 is a cell set consisting of cells that can be scheduled by DCI 0_3, and for example, a cell set corresponding to DCI 1_3 is a cell set consisting of cells that can be scheduled by DCI 1_3; A cell set consisting of cells having the same configuration parameters, including but not limited to a set identifier, a cell identifier, a number, and a carrier indicator field (CIF); a cell set determined based on signaling transmitted from a network device, for example, a cell set corresponding to DCI 0_3 is a cell set determined based on signaling received from a cell actually scheduled by DCI 0_3, and a cell set corresponding to DCI 1_3 is a cell set determined based on signaling received from a cell actually scheduled by DCI 1_3; and a cell set determined based on a predefined rule.

[0192] In one embodiment, in any one of the plurality of cells scheduled by the first downlink control information for scheduling downlink transmission, the number of sizes of aligned conventional downlink control information is equal to or less than a third number, or In any one of the plurality of cells scheduled by the first downlink control information for scheduling uplink transmission, the number of sizes of aligned conventional downlink control information is equal to or less than a third number, or In any one cell of the plurality of cells scheduled by the first downlink control information for scheduling downlink transmission, and in any one cell of the plurality of cells scheduled by the first downlink control information for scheduling uplink transmission, the number of sizes of aligned conventional downlink control information is less than or equal to a third number.

[0193] In one embodiment, the third number is two or three.

[0194] In one embodiment, the network device can adjust the configuration so that the number of aligned legacy DCI sizes in any one of the multiple cells scheduled by DCI 0_3 is less than or equal to a third number.

[0195] Therefore, since the number of aligned legacy DCI sizes is small in any one of the multiple cells scheduled by DCI 0_3, it becomes easy to ensure that in at least one first cell corresponding to DCI 0_3, the total number of DCI 0_3 sizes and aligned legacy DCI sizes is less than or equal to the product of the number of at least one first cell and the first number.

[0196] For example, the third number is 2, and DCI 0_3 is introduced in a cell scheduled by DCI 0_3, but it can still be ensured that in at least one first cell corresponding to DCI 0_3, the sum of the size of DCI 0_3 and the size of the aligned legacy DCI is less than or equal to the product of the number of at least one first cell and the first number.

[0197] For example, the number of the at least one first cell corresponding to DCI 0_3 is 1, the first number is 3, and the product of the number of the at least one first cell and the first number is 3. For example, the number of sizes of the aligned legacy DCI is equal to the third number, 2, and the number of sizes of DCI 0_3 is 1. In this case, the total number of the sizes of DCI 0_3 and the aligned legacy DCI is 3, which is equal to the product of the number of the at least one first cell and the first number, 3.

[0198] In one embodiment, the network device can adjust its configuration so that the number of aligned legacy DCI sizes in any one of the multiple cells scheduled by DCI 1_3 is less than or equal to a third number.

[0199] Therefore, since the number of aligned legacy DCI sizes is small in any one of the multiple cells scheduled by DCI 1_3, it becomes easy to ensure that in at least one first cell corresponding to DCI 1_3, the total number of DCI 1_3 sizes and aligned legacy DCI sizes is less than or equal to the product of the number of at least one first cell and the first number.

[0200] For example, when the third number is 3 and DCI 1_3 is introduced in a cell scheduled by DCI 1_3, it is possible to ensure that in at least one first cell corresponding to DCI 1_3, the sum of the size of DCI 1_3 and the size of the aligned legacy DCI is less than or equal to the product of the number of at least one first cell and the first number.

[0201] For example, the number of the at least one first cell corresponding to DCI 1_3 is 1, the first number is 4, and the product of the number of the at least one first cell and the first number is 4. For example, the number of sizes of the aligned legacy DCI is equal to the third number, 3, and the number of sizes of DCI 1_3 is 1. In this case, the total number of the sizes of DCI 1_3 and the aligned legacy DCI is 4, which is equal to the product of the number of the at least one first cell and the first number, 4.

[0202] In one embodiment, the network device can adjust its configuration so that the number of aligned legacy DCI sizes in any one of the multiple cells scheduled by DCI 0_3 and in any one of the multiple cells scheduled by DCI 1_3 is less than or equal to a third number.

[0203] Therefore, since the number of aligned legacy DCI sizes is small in any one of the multiple cells scheduled by DCI 0_3 and in any one of the multiple cells scheduled by DCI 1_3, it becomes easy to ensure that the total number of the sizes of DCI 0_3 and DCI 1_3 and the aligned legacy DCI sizes is less than or equal to the product of the number of at least one first cell and the first number in at least one first cell corresponding to DCI 0_3 and in any one of the multiple cells scheduled by DCI 1_3.

[0204] For example, if the third number is 2, DCI 0_3 is introduced in a cell scheduled by DCI 0_3, and DCI 1_3 is introduced in a cell scheduled by DCI 1_3, it can still be ensured that in at least one first cell corresponding to DCI 1_3 and DCI 1_3, the total number of the sizes of DCI 1_3 and DCI 1_3 and the size of the aligned legacy DCI is less than or equal to the product of the number of at least one first cell and the first number.

[0205] For example, the number of the at least one first cell corresponding to DCI 0_3 and DCI 1_3 is 1, the first number is 4, and the product of the number of the at least one first cell and the first number is 4. For example, the number of sizes of the aligned legacy DCI is equal to the third number, 2, and the number of sizes of DCI 0_3 and DCI 1_3 is 2. In this case, the total number of the sizes of DCI 0_3 and DCI 1_3 and the size of the aligned legacy DCI is 4, which is equal to the product of the number of the at least one first cell and the first number, 4.

[0206] 7 is a schematic flowchart of a method for performing size alignment of downlink control information described in an embodiment of the present disclosure. The method for performing size alignment of downlink control information described in this embodiment can be performed by a network device, and the network device can communicate with a terminal, and the network device includes, but is not limited to, a base station in a communication system, such as a 4G base station, a 5G base station, or a 6G base station. The terminal includes, but is not limited to, a communication device, such as a mobile phone, a tablet, a wearable device, a sensor, or an Internet of Things device.

[0207] As shown in FIG. 7, the method for performing size alignment of downlink control information may include the following steps S701 to S703.

[0208] In step S701, a reference cell is determined from at least one first cell corresponding to first downlink control information for scheduling a plurality of cells.

[0209] In step S702, size alignment is performed between the conventional downlink control information and the first downlink control information in the reference cell, and size alignment is performed between the conventional downlink control information and the second cell in at least one of the first cells, where the second cell is a cell other than the reference cell in the first cell.

[0210] In step S703, the first downlink control information is transmitted to the terminal.

[0211] In the following embodiments, for the sake of simplicity, the primary downlink control information is represented by MC-DCI, and the conventional downlink control information is represented by legacy DCI.

[0212] In one embodiment, the legacy DCI may be referred to as a conventional DCI, and the legacy DCI may include at least one of DCI 0_0, DCI 0_1, DCI 1_0, DCI 1_1, DCI 2_0, and DCI 2_1. Here, the alignment process of the legacy DCI can be referred to in the prior art, and the present disclosure will not provide a detailed description here.

[0213] According to an embodiment of the present disclosure, a network device can determine a reference cell from at least one first cell that supports MC-DCI. When performing size alignment of DCI in the reference cell, the DCIs participating in the alignment process include MC-DCI and legacy DCI. On the other hand, when performing size alignment of DCI in cells other than the reference cell of the at least one first cell, the DCIs participating in the alignment process include legacy DCI and do not include MC-DCI. Furthermore, the network device can transmit the DCI to the terminal.

[0214] In contrast, after receiving MC-DCI for scheduling multiple cells, the terminal can determine that the MC-DCI corresponds to at least one first cell, determine that the legacy DCI and the MC-DCI have participated in the DCI size alignment process in the reference cell, and determine that only the legacy DCI has participated in the DCI size alignment process in cells other than the reference cell of the at least one first cell.

[0215] In at least one first cell, only legacy DCI participates in the DCI size alignment process in cells other than the reference cell, and MC-DCI does not participate in the alignment process, which is advantageous for simplifying the alignment inference process by the terminal. And, in at least one first cell, both legacy DCI and MC-DCI participate in the alignment process in the reference cell, which helps ensure that the total number of DCI sizes in the at least one first cell is not excessive, thereby preventing the terminal from blindly detecting DCI from becoming too complex.

[0216] Furthermore, in cells other than the reference cell, size alignment is performed only on the legacy DCI, and the MC-DCI does not participate in the alignment, so the size of the MC-DCI does not change for different cells, and therefore, at least in cells other than the reference cell, when the network device schedules multiple cells via one MC-DCI, the problem of different sizes of MC-DCI that need to be transmitted in different cells is avoided.

[0217] Note that the operation of performing size alignment of DCI is performed by a network device, and the network device performs the alignment operation and then transmits the DCI to the terminal. When the terminal determines the size alignment of one or more DCI, the terminal infers the process by which the network device aligns the one or more DCI. For example, the terminal infers that the network device will perform an alignment process such as zero padding or truncation on the DCI, thereby determining the size of the aligned DCI and performing blind detection of the DCI. The terminal does not perform alignment operations such as zero padding or truncation on the DCI.

[0218] In one embodiment, the conventional downlink control information in each cell scheduled by the first downlink control information satisfies a predetermined condition, where the predetermined condition is: the number of conventional downlink control information scrambled by a Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number; The number of conventional downlink control information scrambled by an RNTI other than the C-RNTI is less than or equal to a second number.

[0219] In one embodiment, the first number is 3 or 4, and the second number is 1. For example, if the first number is 3 and the second number is 1, the preset condition may be referred to as a "3+1" condition. That is, in one cell, the number of legacy DCI sizes scrambled by the C-RNTI is 3 or less, and the number of legacy DCI sizes scrambled by an RNTI other than the C-RNTI is 1 or less. Alternatively, this may be expressed as the number of legacy DCI sizes being 4 or less, and the number of legacy DCI sizes scrambled by the C-RNTI being 3 or less, in one cell.

[0220] Hereinafter, at least one first cell corresponding to MC-DCI will be exemplarily described through several embodiments.

[0221] In one embodiment, the first downlink control information comprises: first downlink control information for scheduling downlink transmission, such as DCI 1_3; and first downlink control information for scheduling uplink transmission, such as DCI 0_3.

[0222] Hereinafter, for convenience of explanation, the first downlink control information for scheduling downlink transmission is denoted by DCI 1_3, and the first downlink control information for scheduling uplink transmission is denoted by DCI 0_3.

[0223] In one embodiment, the at least one first cell comprises: a cell included in a cell set corresponding to first downlink control information for scheduling downlink transmission; a cell included in a cell set corresponding to first downlink control information for scheduling uplink transmission; The control information includes at least one of a cell set corresponding to the first downlink control information for scheduling downlink transmission, and a cell included in the cell set corresponding to the first downlink control information for scheduling uplink transmission.

[0224] In one embodiment, the at least one first cell is a cell included in a cell set corresponding to DCI 1_3, for example, the cell set corresponding to DCI 1_3 is a cell set consisting of cells that can be scheduled by DCI 1_3, or the cell set corresponding to DCI 1_3 is a cell set consisting of cells that are actually scheduled by DCI 1_3.

[0225] In one embodiment, the at least one first cell is a cell included in a cell set corresponding to DCI 0_3, for example, a cell set corresponding to DCI 0_3 is a cell set consisting of cells that can be scheduled by DCI 0_3, or a cell set corresponding to DCI 0_3 is a cell set consisting of cells that are actually scheduled by DCI 0_3.

[0226] In one embodiment, the at least one first cell is a cell included in a cell set corresponding to DCI 0_3 and a cell set corresponding to DCI 1_3.

[0227] For example, the cell set corresponding to DCI 0_3 is a cell set consisting of cells that can be scheduled by DCI 0_3, and the cell set corresponding to DCI 1_3 is a cell set consisting of cells that can be scheduled by DCI 1_3. The cells that can be scheduled by DCI 0_3 are Cell#1, Cell#2, Cell#3, and Cell#5, and the cells that can be scheduled by DCI 1_3 are Cell#1, Cell#2, Cell#4, and Cell#6. In this case, the cells included in the cell set {Cell#1, Cell#2, Cell#3, Cell#5} corresponding to DCI 0_3 and the cell set {Cell#1, Cell#2, Cell#4, Cell#6} corresponding to DCI 1_3 are Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6.

[0228] For example, the cell set corresponding to DCI 0_3 is a cell set consisting of cells that are actually scheduled by DCI 0_3, and the cell set corresponding to DCI 1_3 is a cell set consisting of cells that are actually scheduled by DCI 1_3. The cells that are actually scheduled by DCI 0_3 are Cell#1, Cell#2, and Cell#3, and the cells that are actually scheduled by DCI 1_3 are Cell#2 and Cell#4. In this case, the cells included in the cell set {Cell#1, Cell#2, Cell#3} corresponding to DCI 0_3 and the cell set {Cell#2, Cell#4} corresponding to DCI 1_3 are Cell#1, Cell#2, Cell#3, and Cell#4.

[0229] Regarding which of the above embodiments the at least one first cell is determined by, the terminal may determine it based on a predefined rule, may determine it based on an instruction from a network device, or may determine it based on the terminal's own capabilities reported by the terminal.

[0230] In addition, the cell set is not limited to the above two situations, i.e., the cell set is not limited to the cell set consisting of cells that can be scheduled by MC-DCI and the cell set consisting of cells that are actually scheduled by MC-DCI. Hereinafter, the cell set will be described by way of example through several embodiments.

[0231] In one embodiment, the cell set comprises: A cell set consisting of cells that are actually scheduled by MC-DCI, for example, a cell set corresponding to DCI 0_3 is a cell set consisting of cells that are actually scheduled by DCI 0_3, and for example, a cell set corresponding to DCI 1_3 is a cell set consisting of cells that are actually scheduled by DCI 1_3; A cell set consisting of cells that can be scheduled by MC-DCI, for example, a cell set corresponding to DCI 0_3 is a cell set consisting of cells that can be scheduled by DCI 0_3, and for example, a cell set corresponding to DCI 1_3 is a cell set consisting of cells that can be scheduled by DCI 1_3; A cell set consisting of cells having the same configuration parameters, the configuration parameters including but not limited to a set identifier, a cell identifier, a number, and a carrier indicator field (CIF); a cell set determined based on signaling transmitted from a network device, for example, a cell set corresponding to DCI 0_3 is a cell set determined based on signaling received from a cell actually scheduled by DCI 0_3, and a cell set corresponding to DCI 1_3 is a cell set determined based on signaling received from a cell actually scheduled by DCI 1_3; and a cell set determined based on a predefined rule.

[0232] In one embodiment, the reference cell is At least one first cell with the smallest cell index; At least one first cell with the highest cell index; Among at least one first cell, a cell having the smallest number of sizes of configured conventional downlink control information; At least one first cell is a cell for detecting blind detection resources (e.g., BD, CCE); and a cell in which a search space corresponding to the first downlink control information is set among the at least one first cell.

[0233] FIG. 8 is a schematic diagram of the interaction between a terminal and a network device according to an embodiment of the present disclosure.

[0234] As shown in Figure 8, the network device may perform size alignment of the legacy DCI in each cell scheduled by the MC-DCI, and ensure that the sum of the number of MC-DCI sizes and the number of aligned legacy DCI sizes is less than or equal to a first threshold, and may transmit the MC-DCI and the aligned legacy DCI to the terminal.

[0235] The terminal can receive MC-DCI for scheduling multiple cells, determine multiple cells to be scheduled by the MC-DCI, and determine size alignment of the legacy DCI in each cell among the multiple cells.

[0236] For other details related to this embodiment, please refer to the explanations of the relevant details of each embodiment above, and detailed explanations will be omitted here.

[0237] FIG. 9 is a schematic diagram of another interaction between a terminal and a network device according to an embodiment of the present disclosure.

[0238] As shown in FIG. 9, the network device can determine a reference cell from at least one first cell corresponding to the MC-DCI. When performing size alignment of the DCI in the reference cell, the DCI participating in the alignment process includes the MC-DCI and the legacy DCI. On the other hand, when performing size alignment of the conventional downlink control information in a second cell in the at least one first cell, the second cell is a cell other than the reference cell in the first cell. In this case, the DCI participating in the alignment process includes the legacy DCI but does not include the MC-DCI. Furthermore, the DCI can be transmitted to the terminal.

[0239] A terminal receives MC-DCI for scheduling multiple cells, determines at least one first cell corresponding to the MC-DCI, determines that in a reference cell, the legacy DCI and the MC-DCI have participated in a DCI size alignment process, and determines that in a second cell in the at least one first cell, only the legacy DCI has participated in the DCI size alignment process, where the second cell is a cell other than the reference cell in the first cell.

[0240] For other details related to this embodiment, please refer to the explanations of the relevant details of each embodiment above, and detailed explanations will be omitted here.

[0241] Corresponding to the above-mentioned embodiments of the method for performing size alignment of downlink control information and the method for determining size alignment of downlink control information, the present disclosure further provides embodiments of an apparatus for performing size alignment of downlink control information and an apparatus for determining size alignment of downlink control information.

[0242] 10 is a schematic block diagram of an apparatus for determining size alignment of downlink control information according to an embodiment of the present disclosure. As shown in FIG. 10, the apparatus for determining size alignment of downlink control information includes: a receiving module 1001 configured to receive first downlink control information for scheduling a plurality of cells; and a processing module 1002 configured to determine size alignment of conventional downlink control information in each cell scheduled by the first downlink control information, wherein in at least one first cell corresponding to the first downlink control information, a sum of the size of the first downlink control information and the size of the aligned conventional downlink control information is less than or equal to a first threshold.

[0243] In one embodiment, the at least one first cell is any one of a plurality of cells scheduled by the first downlink control information.

[0244] In one embodiment, the first downlink control information includes at least one of: first downlink control information for scheduling downlink transmission; and first downlink control information for scheduling uplink transmission.

[0245] In one embodiment, the at least one first cell comprises: a cell included in a cell set corresponding to first downlink control information for scheduling downlink transmission; a cell included in a cell set corresponding to first downlink control information for scheduling uplink transmission; The control information includes at least one of a cell set corresponding to the first downlink control information for scheduling downlink transmission, and a cell included in the cell set corresponding to the first downlink control information for scheduling uplink transmission.

[0246] In one embodiment, in any one of the plurality of cells scheduled by the first downlink control information for scheduling downlink transmission, the number of sizes of aligned conventional downlink control information is less than or equal to a third number, or in any one of the plurality of cells scheduled by the first downlink control information for scheduling uplink transmission, the number of sizes of aligned conventional downlink control information is less than or equal to a third number, or in any one of the plurality of cells scheduled by the first downlink control information for scheduling downlink transmission and in any one of the plurality of cells scheduled by the first downlink control information for scheduling uplink transmission, the number of sizes of aligned conventional downlink control information is less than or equal to a third number.

[0247] In one embodiment, the third number is two or three.

[0248] In one embodiment, conventional downlink control information in each cell scheduled by the first downlink control information satisfies a predetermined condition, where the predetermined condition includes that the number of conventional downlink control information scrambled by a Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number, and that the number of conventional downlink control information scrambled by an RNTI other than the C-RNTI is less than or equal to a second number.

[0249] In one embodiment, the first number is three or four and the second number is one.

[0250] 11 is a schematic block diagram of an apparatus for determining size alignment of downlink control information according to an embodiment of the present disclosure. As shown in FIG. 11, the apparatus for determining size alignment of downlink control information includes: a receiving module 1101 configured to receive first downlink control information for scheduling a plurality of cells; and a processing module 1102 configured to determine a reference cell from among at least one first cell corresponding to the first downlink control information, determine a size alignment of the conventional downlink control information and the first downlink control information in the reference cell, and determine a size alignment of the conventional downlink control information in a second cell in the at least one first cell, where the second cell is a cell other than the reference cell in the first cell.

[0251] In one embodiment, the first downlink control information includes at least one of: first downlink control information for scheduling downlink transmission; and first downlink control information for scheduling uplink transmission.

[0252] In one embodiment, the at least one first cell comprises: a cell included in a cell set corresponding to first downlink control information for scheduling downlink transmission; a cell included in a cell set corresponding to first downlink control information for scheduling uplink transmission; The control information includes at least one of a cell set corresponding to the first downlink control information for scheduling downlink transmission, and a cell included in the cell set corresponding to the first downlink control information for scheduling uplink transmission.

[0253] In one embodiment, the reference cell is At least one first cell with the smallest cell index; At least one first cell with the highest cell index; Among at least one first cell, a cell having the smallest number of sizes of configured conventional downlink control information; At least one first cell, the first cell being for calculating blind detection resources; and a cell in which a search space corresponding to the first downlink control information is set among the at least one first cell.

[0254] In one embodiment, conventional downlink control information in each cell scheduled by the first downlink control information satisfies a predetermined condition, where the predetermined condition includes that the number of conventional downlink control information scrambled by a Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number, and that the number of conventional downlink control information scrambled by an RNTI other than the C-RNTI is less than or equal to a second number.

[0255] In one embodiment, the first number is three or four and the second number is one.

[0256] 12 is a schematic block diagram of an apparatus for performing size alignment of downlink control information according to an embodiment of the present disclosure. As shown in FIG. 12, the apparatus for performing size alignment of downlink control information includes: A processing module 1201 configured to perform size alignment of conventional downlink control information in each cell scheduled by first downlink control information for scheduling a plurality of cells, wherein in at least one first cell corresponding to the first downlink control information, the sum of the size of the first downlink control information and the size of the aligned conventional downlink control information is less than or equal to a first threshold; a transmitting module 1202 configured to transmit the first downlink control information to the terminal.

[0257] In one embodiment, the at least one first cell is any one of a plurality of cells scheduled by the first downlink control information.

[0258] In one embodiment, the first downlink control information includes at least one of: first downlink control information for scheduling downlink transmission; and first downlink control information for scheduling uplink transmission.

[0259] In one embodiment, the at least one first cell comprises: a cell included in a cell set corresponding to first downlink control information for scheduling downlink transmission; a cell included in a cell set corresponding to first downlink control information for scheduling uplink transmission; The control information includes at least one of a cell set corresponding to the first downlink control information for scheduling downlink transmission, and a cell included in the cell set corresponding to the first downlink control information for scheduling uplink transmission.

[0260] In one embodiment, in any one of the plurality of cells scheduled by the first downlink control information for scheduling downlink transmission, the number of sizes of aligned conventional downlink control information is less than or equal to a third number, or in any one of the plurality of cells scheduled by the first downlink control information for scheduling uplink transmission, the number of sizes of aligned conventional downlink control information is less than or equal to a third number, or in any one of the plurality of cells scheduled by the first downlink control information for scheduling downlink transmission and in any one of the plurality of cells scheduled by the first downlink control information for scheduling uplink transmission, the number of sizes of aligned conventional downlink control information is less than or equal to a third number.

[0261] In one embodiment, the third number is two or three.

[0262] In one embodiment, conventional downlink control information in each cell scheduled by the first downlink control information satisfies a predetermined condition, where the predetermined condition includes that the number of conventional downlink control information scrambled by a Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number, and that the number of conventional downlink control information scrambled by an RNTI other than the C-RNTI is less than or equal to a second number.

[0263] In one embodiment, the first number is three or four and the second number is one.

[0264] 13 is a schematic block diagram of an apparatus for performing size alignment of downlink control information according to an embodiment of the present disclosure. As shown in FIG. 13, the apparatus for performing size alignment of downlink control information includes: A processing module 1301 configured to determine a reference cell from at least one first cell corresponding to first downlink control information for scheduling a plurality of cells, perform size alignment of the conventional downlink control information and the first downlink control information in the reference cell, and perform size alignment of the conventional downlink control information in a second cell in the at least one first cell, where the second cell is a cell other than the reference cell in the first cell; a transmitting module 1302 configured to transmit the first downlink control information to the terminal.

[0265] In one embodiment, the first downlink control information includes at least one of: first downlink control information for scheduling downlink transmission; and first downlink control information for scheduling uplink transmission.

[0266] In one embodiment, the at least one first cell comprises: a cell included in a cell set corresponding to first downlink control information for scheduling downlink transmission; a cell included in a cell set corresponding to first downlink control information for scheduling uplink transmission; The control information includes at least one of a cell set corresponding to the first downlink control information for scheduling downlink transmission, and a cell included in the cell set corresponding to the first downlink control information for scheduling uplink transmission.

[0267] In one embodiment, the reference cell is At least one first cell with the smallest cell index; At least one first cell with the highest cell index; Among at least one first cell, a cell having the smallest number of sizes of configured conventional downlink control information; At least one first cell, the first cell being for calculating blind detection resources; and a cell in which a search space corresponding to the first downlink control information is set among the at least one first cell.

[0268] In one embodiment, conventional downlink control information in each cell scheduled by the first downlink control information satisfies a predetermined condition, where the predetermined condition includes that the number of conventional downlink control information scrambled by a Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number, and that the number of conventional downlink control information scrambled by an RNTI other than the C-RNTI is less than or equal to a second number.

[0269] In one embodiment, the first number is three or four and the second number is one.

[0270] Since the device embodiments basically correspond to the method embodiments, please refer to the method embodiments for relevant parts. The device embodiments described above are merely illustrative, and the modules described as separate components may or may not be physically separate, and the components displayed as modules may not be physical modules, i.e., they may be distributed in one location or across multiple network modules. Depending on the needs of implementation, some or all of the modules may be selected to achieve the objectives of the solution of this embodiment. Those skilled in the art can understand and implement this without any creative effort.

[0271] An embodiment of the present disclosure further provides a system for performing size alignment of downlink control information, including a terminal and a network device, wherein the terminal is configured to implement the method for determining size alignment of downlink control information described in any one of the above embodiments, and the network device is configured to implement the method for performing size alignment of downlink control information described in any one of the above embodiments.

[0272] An embodiment of the present disclosure further provides a communication device, which includes a processor and a memory for storing a computer program, and wherein, when the computer program is executed by the processor, the method for determining size alignment of downlink control information described in any one of the above embodiments is realized.

[0273] An embodiment of the present disclosure further provides a communication device, which includes a processor and a memory for storing a computer program, and wherein, when the computer program is executed by the processor, the method for performing size alignment of downlink control information described in any one of the above embodiments is realized.

[0274] An embodiment of the present disclosure further provides a computer-readable storage medium for storing a computer program, which, when executed by a processor, realizes the method for determining size alignment of downlink control information described in any one of the above embodiments.

[0275] An embodiment of the present disclosure further provides a computer-readable storage medium for storing a computer program, which, when executed by a processor, realizes the method for performing size alignment of downlink control information described in any one of the above embodiments.

[0276] 14, which is a schematic block diagram of an apparatus 1400 for performing size alignment of downlink control information according to an embodiment of the present disclosure. The apparatus 1400 may be a base station. Referring to FIG. 14, the apparatus 1400 includes a processing component 1422, a radio transmit / receive component 1424, an antenna component 1426, and a radio interface-specific signal processing part, and the processing component 1422 may further include one or more processors. One processor in the processing component 1422 may be configured to implement the method for performing size alignment of downlink control information described in any one of the above embodiments.

[0277] 15 is a schematic block diagram of an apparatus 1500 for determining size alignment of downlink control information according to an embodiment of the present disclosure. For example, the apparatus 1500 may be a terminal, such as a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0278] Referring to FIG. 15 , device 1500 may include one or more components: a processing component 1502, a memory 1504, a power component 1506, a multimedia component 1508, an audio component 1510, an input / output (I / O) interface 1512, a sensor component 1514, and a communication component 1516.

[0279] The processing component 1502 typically controls the overall operation of the control device 1500, such as operations related to display, phone calls, data communication, camera operation, and recording operation. The processing component 1502 may include one or more processors 1520 that execute instructions to implement all or some of the steps of the method for determining size alignment of downlink control information described in any one of the above embodiments. The processing component 1502 may also include one or more modules to facilitate interaction between the processing component 1502 and other units. For example, the processing component 1502 may include a multimedia module to facilitate interaction between the multimedia component 1508 and the processing component 1502.

[0280] Memory 1504 is configured to store various types of data to support operation on device 1500. Examples of this data include any application programs or method instructions for operation on communication device 1500, contact data, phone book data, messages, pictures, videos, etc.

[0281] The power component 1506 provides power for the various components of the device 1500. The power component 1506 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 1500.

[0282] Multimedia component 1508 includes a screen that provides an output interface between device 1500 and a user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch panel for receiving input signals from a user.

[0283] The audio component 1510 is configured to input and / or output audio signals. For example, the audio component 1510 includes a microphone (MIC). The microphone is configured to receive external audio signals when the device 1500 is in an operation mode, such as a call mode, a recording mode, or a voice recognition mode. The received audio signals are further stored in the memory 1504 or transmitted via the communication component 1516. In some embodiments, the audio component 1510 further includes a speaker for outputting audio signals.

[0284] The I / O interface 1512 provides an interface between the processing component 1502 and a peripheral interface module, which may be a keyboard, a click wheel, buttons, etc. These buttons include, but are not limited to, a home button, volume buttons, a start button, and a lock button.

[0285] The sensor component 1514 includes one or more sensors for providing a status assessment of each aspect for the device 1500 .

[0286] The communication component 1516 is configured to facilitate wired or wireless communication between the device 1500 and other devices. The device 1500 may access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1516 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1516 further includes a near-field communication (NFC) module for facilitating short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0287] In an exemplary embodiment, the apparatus 1500 may be realized by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for performing the method for determining size alignment of downlink control information described in any one of the above embodiments.

[0288] In an exemplary embodiment, a non-transitory computer-readable storage medium containing instructions, such as a memory 1504 containing instructions, is also provided, which are executable by the processor 1520 of the apparatus 1500 to perform the method for determining size alignment of downlink control information described in any one of the above embodiments. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0289] Other embodiments of the present disclosure will be readily apparent to those skilled in the art after considering the specification and practicing the disclosure disclosed herein. The present disclosure is intended to cover any modifications, uses, or adaptations of the present disclosure, including those incorporating the general principles of the present disclosure and techniques not disclosed herein that are well known or commonly employed in the art. The specification and examples are considered exemplary only, with the true scope and spirit of the present disclosure being indicated in the following claims.

[0290] It should be understood that the present disclosure is not limited to the exact structure already described above and illustrated in the drawings, and that various modifications and variations can be made without departing from the principles and spirit of the present disclosure. The scope of the present disclosure is limited only by the claims and their equivalents.

Claims

1. 1. A method for determining size alignment of downlink control information, performed by a terminal, comprising: receiving first downlink control information for scheduling a plurality of cells; determining size alignment of conventional downlink control information in each cell scheduled by the first downlink control information, wherein in at least one first cell corresponding to the first downlink control information, a sum of the size of the first downlink control information and the size of aligned conventional downlink control information is less than or equal to a first threshold; 10. A method for determining size alignment of downlink control information, comprising:

2. the at least one first cell is any one cell of a plurality of cells scheduled by the first downlink control information; The method of determining size alignment of downlink control information according to claim 1 .

3. The first downlink control information first downlink control information for scheduling downlink transmission; first downlink control information for scheduling uplink transmissions; The method of determining size alignment of downlink control information according to claim 1 .

4. The at least one first cell comprises: a cell included in a cell set corresponding to first downlink control information for scheduling the downlink transmission; a cell included in a cell set corresponding to first downlink control information for scheduling the uplink transmission; a cell set corresponding to first downlink control information for scheduling the uplink transmission, and a cell included in the cell set corresponding to the first downlink control information for scheduling the uplink transmission; The method for determining size alignment of downlink control information according to claim 3 .

5. In any one of the plurality of cells scheduled by the first downlink control information for scheduling the downlink transmission, the number of sizes of aligned conventional downlink control information is equal to or less than a third number, or In any one of the plurality of cells scheduled by the first downlink control information for scheduling the uplink transmission, the number of sizes of aligned conventional downlink control information is equal to or less than a third number, or in any one cell of a plurality of cells scheduled by the first downlink control information for scheduling the uplink transmission, and in any one cell of a plurality of cells scheduled by the first downlink control information for scheduling the uplink transmission, a number of sizes of aligned conventional downlink control information is equal to or less than a third number; The method for determining size alignment of downlink control information according to claim 3 .

6. the third number is 2 or 3; The method for determining size alignment of downlink control information according to claim 5 .

7. The conventional downlink control information in each cell scheduled by the first downlink control information satisfies a predetermined condition, and the predetermined condition is: the number of conventional downlink control information scrambled by a Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number; The number of conventional downlink control information scrambled by an RNTI other than the C-RNTI is equal to or less than a second number. The method for determining the size alignment of downlink control information according to any one of claims 1 to 6.

8. the first number is 3 or 4 and the second number is 1; The method for determining size alignment of downlink control information according to claim 7 .

9. 1. A method for determining size alignment of downlink control information, performed by a terminal, comprising: receiving first downlink control information for scheduling a plurality of cells; determining a reference cell from among at least one first cell corresponding to the first downlink control information; determining a size alignment of the first downlink control information with a size of conventional downlink control information in the reference cell, and determining an alignment of the conventional downlink control information in a second cell in the at least one first cell, the second cell being a cell other than the reference cell in the first cell; 10. A method for determining size alignment of downlink control information, comprising:

10. The first downlink control information first downlink control information for scheduling downlink transmission; first downlink control information for scheduling uplink transmissions; The method of determining size alignment of downlink control information according to claim 9 .

11. The at least one first cell comprises: a cell included in a cell set corresponding to first downlink control information for scheduling the downlink transmission; a cell included in a cell set corresponding to first downlink control information for scheduling the uplink transmission; a cell set corresponding to first downlink control information for scheduling the uplink transmission, and a cell included in the cell set corresponding to the first downlink control information for scheduling the uplink transmission; The method of determining size alignment of downlink control information according to claim 10.

12. The reference cell is a cell having the smallest cell index among the at least one first cell; a cell having the largest cell index among the at least one first cell; Among the at least one first cell, a cell having the smallest number of sizes of configured conventional downlink control information; a cell for calculating a blind detection resource among the at least one first cell; and a cell in which a search space corresponding to the first downlink control information is set among the at least one first cell. The method for determining the size alignment of downlink control information according to any one of claims 9 to 11.

13. The conventional downlink control information in each cell scheduled by the first downlink control information satisfies a predetermined condition, and the predetermined condition is: the number of conventional downlink control information scrambled by a Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number; The number of conventional downlink control information scrambled by an RNTI other than the C-RNTI is equal to or less than a second number. The method for determining the size alignment of downlink control information according to any one of claims 9 to 12.

14. the first number is 3 or 4 and the second number is 1; The method of determining size alignment of downlink control information according to claim 13 .

15. 1. A method for size alignment of downlink control information performed by a network device, comprising: performing size alignment of conventional downlink control information in each cell scheduled by first downlink control information for scheduling a plurality of cells, wherein in at least one first cell corresponding to the first downlink control information, a sum of the size of the first downlink control information and the size of the aligned conventional downlink control information is less than or equal to a first threshold; transmitting the first downlink control information to a terminal; 10. A method for performing size alignment of downlink control information, comprising:

16. the at least one first cell is any one cell of a plurality of cells scheduled by the first downlink control information; The method for performing size alignment of downlink control information according to claim 15.

17. The first downlink control information first downlink control information for scheduling downlink transmission; first downlink control information for scheduling uplink transmissions; The method for performing size alignment of downlink control information according to claim 15.

18. The at least one first cell comprises: a cell included in a cell set corresponding to first downlink control information for scheduling the downlink transmission; a cell included in a cell set corresponding to first downlink control information for scheduling the uplink transmission; a cell set corresponding to first downlink control information for scheduling the uplink transmission, and a cell included in the cell set corresponding to the first downlink control information for scheduling the uplink transmission; 20. The method of claim 17, wherein the size alignment of downlink control information is performed.

19. In any one of the plurality of cells scheduled by the first downlink control information for scheduling the downlink transmission, the number of sizes of aligned conventional downlink control information is equal to or less than a third number, or In any one of the plurality of cells scheduled by the first downlink control information for scheduling the uplink transmission, the number of sizes of aligned conventional downlink control information is equal to or less than a third number, or in any one cell of a plurality of cells scheduled by the first downlink control information for scheduling the uplink transmission, and in any one cell of a plurality of cells scheduled by the first downlink control information for scheduling the uplink transmission, a number of sizes of aligned conventional downlink control information is equal to or less than a third number; 20. The method of claim 17, wherein the size alignment of downlink control information is performed.

20. the third number is 2 or 3; 20. The method of claim 19, wherein the size alignment of downlink control information is performed.

21. The conventional downlink control information in each cell scheduled by the first downlink control information satisfies a predetermined condition, and the predetermined condition is: the number of conventional downlink control information scrambled by a Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number; The number of conventional downlink control information scrambled by an RNTI other than the C-RNTI is equal to or less than a second number. The method for performing size alignment of downlink control information according to any one of claims 15 to 20.

22. the first number is 3 or 4 and the second number is 1; 22. The method of claim 21, wherein the size alignment of downlink control information is performed.

23. 1. A method for size alignment of downlink control information performed by a network device, comprising: determining a reference cell from among at least one first cell corresponding to first downlink control information for scheduling a plurality of cells; performing size alignment of the size of conventional downlink control information and the size of the first downlink control information in the reference cell, and performing alignment of conventional downlink control information in a second cell in the at least one first cell, where the second cell is a cell other than the reference cell in the first cell; transmitting the first downlink control information to a terminal; 10. A method for performing size alignment of downlink control information, comprising:

24. The first downlink control information first downlink control information for scheduling downlink transmission; first downlink control information for scheduling uplink transmissions; 24. The method of claim 23, wherein the size alignment of downlink control information is performed.

25. The at least one first cell comprises: a cell included in a cell set corresponding to first downlink control information for scheduling the downlink transmission; a cell included in a cell set corresponding to first downlink control information for scheduling the uplink transmission; a cell set corresponding to first downlink control information for scheduling the uplink transmission, and a cell included in the cell set corresponding to the first downlink control information for scheduling the uplink transmission; 25. The method of claim 24, wherein the size alignment of downlink control information is performed.

26. The reference cell is a cell having the smallest cell index among the at least one first cell; a cell having the largest cell index among the at least one first cell; Among the at least one first cell, a cell having the smallest number of sizes of configured conventional downlink control information; a cell for calculating a blind detection resource among the at least one first cell; and a cell in which a search space corresponding to the first downlink control information is set among the at least one first cell. The method for performing size alignment of downlink control information according to any one of claims 23 to 25.

27. The conventional downlink control information in each cell scheduled by the first downlink control information satisfies a predetermined condition, and the predetermined condition is: the number of conventional downlink control information scrambled by a Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number; The number of conventional downlink control information scrambled by an RNTI other than the C-RNTI is equal to or less than a second number. The method for performing size alignment of downlink control information according to any one of claims 23 to 26.

28. the first number is 3 or 4 and the second number is 1; 28. The method of claim 27, wherein the size alignment of downlink control information is performed.

29. 1. An apparatus for determining size alignment of downlink control information, comprising: a receiving module configured to receive first downlink control information for scheduling a plurality of cells; a processing module configured to determine size alignment of conventional downlink control information in each cell scheduled by the first downlink control information, wherein in at least one first cell corresponding to the first downlink control information, a sum of a size of the first downlink control information and a size of aligned conventional downlink control information is less than or equal to a first threshold; 11. An apparatus for determining size alignment of downlink control information, comprising:

30. 1. An apparatus for determining size alignment of downlink control information, comprising: a receiving module configured to receive first downlink control information for scheduling a plurality of cells; a processing module configured to determine a reference cell from at least one first cell corresponding to the first downlink control information, determine a size alignment of the size of conventional downlink control information and the first downlink control information in the reference cell, and determine an alignment of conventional downlink control information in a second cell in the at least one first cell, the second cell being a cell other than the reference cell in the first cell; 11. An apparatus for determining size alignment of downlink control information, comprising:

31. 1. An apparatus for performing size alignment of downlink control information, comprising: a processing module configured to perform size alignment of conventional downlink control information in each cell scheduled by first downlink control information for scheduling a plurality of cells, wherein in at least one first cell corresponding to the first downlink control information, a sum of a size of the first downlink control information and a size of aligned conventional downlink control information is less than or equal to a first threshold; a transmitting module configured to transmit the first downlink control information to a terminal; 11. An apparatus for performing size alignment of downlink control information, comprising:

32. 1. An apparatus for performing size alignment of downlink control information, comprising: a processing module configured to determine a reference cell from at least one first cell corresponding to first downlink control information for scheduling a plurality of cells, perform size alignment of a size of conventional downlink control information and the first downlink control information in the reference cell, and perform size alignment of the size of conventional downlink control information in a second cell in the at least one first cell, wherein the second cell is a cell other than the reference cell in the first cell; a transmitting module configured to transmit the first downlink control information to a terminal; 11. An apparatus for performing size alignment of downlink control information, comprising:

33. A system for performing size alignment of downlink control information, comprising: a terminal; and a network device; The terminal is configured to implement the method for determining size alignment of downlink control information according to any one of claims 1 to 14, and the network device is configured to implement the method for performing size alignment of downlink control information according to any one of claims 15 to 28.

1. A system for performing size alignment of downlink control information, comprising:

34. A communication device, a processor; a memory for storing a computer program; When the computer program is executed by a processor, the method for determining size alignment of downlink control information according to any one of claims 1 to 14 is realized. A communication device comprising:

35. A communication device, a processor; a memory for storing a computer program; When the computer program is executed by a processor, the method for performing size alignment of downlink control information according to any one of claims 15 to 28 is realized. A communication device comprising:

36. A computer-readable storage medium on which a computer program is stored, When the computer program is executed by a processor, the method for determining size alignment of downlink control information according to any one of claims 1 to 14 is realized. A computer-readable storage medium comprising:

37. A computer-readable storage medium on which a computer program is stored, When the computer program is executed by a processor, the method for performing size alignment of downlink control information according to any one of claims 15 to 28 is realized. A computer-readable storage medium comprising:

Images